LegalizeDAG.cpp revision e07415d4006b923ed1d2057ffa5a493353e28f9e
13e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===-- LegalizeDAG.cpp - Implement SelectionDAG::Legalize ----------------===// 2edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 33e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// The LLVM Compiler Infrastructure 43e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 83e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 93e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// This file implements the SelectionDAG::Legalize method. 113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/CodeGen/SelectionDAG.h" 153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/CodeGen/MachineFunction.h" 1645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner#include "llvm/CodeGen/MachineFrameInfo.h" 17acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey#include "llvm/CodeGen/MachineJumpTableInfo.h" 1884bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/CodeGen/MachineModuleInfo.h" 1969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 2061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng#include "llvm/Target/TargetFrameInfo.h" 213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Target/TargetLowering.h" 22e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner#include "llvm/Target/TargetData.h" 233d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng#include "llvm/Target/TargetMachine.h" 240f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner#include "llvm/Target/TargetOptions.h" 25adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 27c10305743c313558405079452138f03124e87581Reid Spencer#include "llvm/DerivedTypes.h" 285e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 29a4f0b3a084d120cfc5b5bb06f64b222f5cb72740Chris Lattner#include "llvm/Support/Compiler.h" 30dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands#include "llvm/Support/MathExtras.h" 317971514755a08ec156a1b9c0f7f05d67919c56b7Chris Lattner#include "llvm/ADT/DenseMap.h" 32f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner#include "llvm/ADT/SmallVector.h" 3300755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner#include "llvm/ADT/SmallPtrSet.h" 34033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng#include <map> 353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 375e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#ifndef NDEBUG 385e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic cl::opt<bool> 395e46a19ec848cd4fc9649bd5170c43d9e657668cChris LattnerViewLegalizeDAGs("view-legalize-dags", cl::Hidden, 405e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner cl::desc("Pop up a window to show dags before legalize")); 415e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#else 425e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic const bool ViewLegalizeDAGs = 0; 435e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#endif 445e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 58360e8200ec544a3c877ff74b48f445140ac9bbd6Chris Lattnerclass VISIBILITY_HIDDEN SelectionDAGLegalize { 593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand LastCALLSEQ_END; 686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 7568a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 7668a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 77d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 8368a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 88718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand> LegalizedNodes; 893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 9003c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 9103c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 9203c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 9340030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand> PromotedNodes; 9403c8546ec57523970874917854a2fb77b1ff598eChris Lattner 95c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 96c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 97c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 9840030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes; 993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 100c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 101c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 102c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 103c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes; 104c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// ScalarizedNodes - For nodes that need to be converted from vector types to 1067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// scalar types, this contains the mapping of ones we have already 107c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 1087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand> ScalarizedNodes; 109c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1108afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner void AddLegalizedOperand(SDOperand From, SDOperand To) { 11169a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 11269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 11469a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 1158afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 11603c8546ec57523970874917854a2fb77b1ff598eChris Lattner void AddPromotedOperand(SDOperand From, SDOperand To) { 11740030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = PromotedNodes.insert(std::make_pair(From, To)); 11803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 11969a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 12069a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 12103c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1228afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1259c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner SelectionDAGLegalize(SelectionDAG &DAG); 1263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 1303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizeAction getTypeAction(MVT::ValueType VT) const { 13168a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 1363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isTypeLegal(MVT::ValueType VT) const { 1373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 142456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 1437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// HandleOp - Legalize, Promote, or Expand the specified operand as 144c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 145c7029805ef35ce9805931067b841e6af11db382eChris Lattner void HandleOp(SDOperand Op); 146c7029805ef35ce9805931067b841e6af11db382eChris Lattner 147c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 148c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 149c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 1503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LegalizeOp(SDOperand O); 151c7029805ef35ce9805931067b841e6af11db382eChris Lattner 152826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// UnrollVectorOp - We know that the given vector has a legal type, however 153826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// the operation it performs is not legal and is an operation that we have 154826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// no way of lowering. "Unroll" the vector, splitting out the scalars and 155826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// operating on each element individually. 156826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand UnrollVectorOp(SDOperand O); 157826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 158c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 159c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 160c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 161c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 162c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 16303c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 165c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 166c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 167c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 170c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 171c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 172c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// SplitVectorOp - Given an operand of vector type, break it down into 1747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// two smaller values. 175c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 176c7029805ef35ce9805931067b841e6af11db382eChris Lattner 17789b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// ScalarizeVectorOp - Given an operand of single-element vector type 17889b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// (e.g. v1f32), convert it into the equivalent operation that returns a 17989b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// scalar (e.g. f32) value. 1807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ScalarizeVectorOp(SDOperand O); 181c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1824352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1844352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1884352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 1914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDNode *isShuffleLegal(MVT::ValueType VT, SDOperand Mask) const; 1924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 193c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 19400755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 1956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 196750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 197750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 19847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer SDOperand ExpandLibCall(const char *Name, SDNode *Node, bool isSigned, 19977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 20077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 20177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 202cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 2031401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand EmitStackConvert(SDOperand SrcOp, MVT::ValueType SlotVT, 2041401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner MVT::ValueType DestVT); 205ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 2064352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 2076269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 2086269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 2096269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 2105a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 2115a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 2121618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 2131618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 21400b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 215456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 216456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 217e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 218e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2195b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2205b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 221b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ExpandEXTRACT_SUBVECTOR(SDOperand Op); 2234aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 2334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDNode *SelectionDAGLegalize::isShuffleLegal(MVT::ValueType VT, 2344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand Mask) const { 2354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::getVectorNumElements(NVT) / MVT::getVectorNumElements(VT); 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 251bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 263bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2729c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2739c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2749c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2756a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 279e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// ComputeTopDownOrdering - Compute a top-down ordering of the dag, where Order 280e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// contains all of a nodes operands before it contains the node. 281e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattnerstatic void ComputeTopDownOrdering(SelectionDAG &DAG, 282e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SmallVector<SDNode*, 64> &Order) { 283e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 284e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner DenseMap<SDNode*, unsigned> Visited; 285e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner std::vector<SDNode*> Worklist; 286e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.reserve(128); 28732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 288e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 289e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // entry node) that have no operands. 290e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 291e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner E = DAG.allnodes_end(); I != E; ++I) { 292e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (I->getNumOperands() == 0) { 293e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Visited[I] = 0 - 1U; 294e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(I); 295e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 29632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 29732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 298e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner while (!Worklist.empty()) { 299e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SDNode *N = Worklist.back(); 300e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.pop_back(); 301e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 302e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (++Visited[N] != N->getNumOperands()) 303e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner continue; // Haven't visited all operands yet 304e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 305e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.push_back(N); 306e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 307e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Now that we have N in, add anything that uses it if all of their operands 308e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // are now done. 309e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); 310e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner UI != E; ++UI) 311e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(*UI); 312e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 313e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 314e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner assert(Order.size() == Visited.size() && 315e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.size() == 316e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 317e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner "Error: DAG is cyclic!"); 31832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 31932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3201618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 325ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 326ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 327ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 328ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 32932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 33032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 3310ed44170752b85c3dd3bbf95459dd2668864f5ecChris Lattner SmallVector<SDNode*, 64> Order; 332e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner ComputeTopDownOrdering(DAG, Order); 333ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 334c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 335c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 33632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 33732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 33932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 34032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 34471c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 345c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 3467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizedNodes.clear(); 3473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 349190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3556831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 407c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 408c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 409c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 410c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 411c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 41200755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 4136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 415c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 416c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 417c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 418c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 438c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 440c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 441c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 442c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 443c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 44680edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// HandleOp - Legalize, Promote, or Expand the specified operand as 451c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 452c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 4537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType VT = Op.getValueType(); 4547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (getTypeAction(VT)) { 455c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 4567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Legal: (void)LegalizeOp(Op); break; 4577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Promote: (void)PromoteOp(Op); break; 458c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 4597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(VT)) { 4607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal scalar, expand it into its two component 4617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // pieces. 462c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 46309ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) 46409ec1b058331aadb29a348091611d23892b5c492Chris Lattner break; // Allow illegal target nodes. 465c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 4667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::getVectorNumElements(VT) == 1) { 4677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal single element vector, convert it to a 4687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // scalar operation. 4697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman (void)ScalarizeVectorOp(Op); 470c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Otherwise, this is an illegal multiple element vector. 4727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Split it in half and legalize both parts. 4737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand X, Y; 4747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SplitVectorOp(Op, X, Y); 475c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 476c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 477c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 478c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4809f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 4819f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 4829f87788040786b1bc6530763e4cf7e105bfb2924Evan Chengstatic SDOperand ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 483279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 484004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 485004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 486004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 487004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 488004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 489004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // double. 490004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng MVT::ValueType VT = CFP->getValueType(0); 491004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool isDouble = VT == MVT::f64; 492118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen ConstantFP *LLVMC = ConstantFP::get(MVT::getTypeForValueType(VT), 4939e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CFP->getValueAPF()); 4949f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 4959e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (VT!=MVT::f64 && VT!=MVT::f32) 4969e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Invalid type expansion"); 4979d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen return DAG.getConstant(LLVMC->getValueAPF().convertToAPInt().getZExtValue(), 4989d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen isDouble ? MVT::i64 : MVT::i32); 499279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 500279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 501f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen if (isDouble && CFP->isValueValidForType(MVT::f32, CFP->getValueAPF()) && 502004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Only do this if the target has a native EXTLOAD instruction from f32. 5039e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // Do not try to be clever about long doubles (so far) 504004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, MVT::f32)) { 505004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC,Type::FloatTy)); 506004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng VT = MVT::f32; 507004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Extend = true; 508004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 509004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 510004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 511004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (Extend) { 512004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 5133069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman CPIdx, PseudoSourceValue::getConstantPool(), 51469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 0, MVT::f32); 515004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } else { 51669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 5173069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 518004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 519004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 520004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 522912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 523912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 524912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 525912095becac923ff614d7b07728eb345ada67765Evan ChengSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT::ValueType NVT, 526912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 527068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng MVT::ValueType VT = Node->getValueType(0); 528912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcVT = Node->getOperand(1).getValueType(); 5297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 5307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 531912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 532068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 533912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 534068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 535912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 536912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 537068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 538912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 539068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 540912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 541912095becac923ff614d7b07728eb345ada67765Evan Cheng int SizeDiff = MVT::getSizeInBits(SrcNVT) - MVT::getSizeInBits(NVT); 542912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 543912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 544912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 545912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 546912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 547912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 548068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 549068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 550068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 551068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 552068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 553068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 554912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 555068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 556068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 557068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 558912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 559912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 560912095becac923ff614d7b07728eb345ada67765Evan Cheng} 561912095becac923ff614d7b07728eb345ada67765Evan Cheng 562f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 563f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 564f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 565f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 566f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = ST->getChain(); 567f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = ST->getBasePtr(); 568f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Val = ST->getValue(); 569f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = Val.getValueType(); 570907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int Alignment = ST->getAlignment(); 571907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int SVOffset = ST->getSrcValueOffset(); 5728155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen if (MVT::isFloatingPoint(ST->getMemoryVT()) || 5738155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen MVT::isVector(ST->getMemoryVT())) { 574907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a bitconvert of the value to the integer type of the 575907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // same size, then a (misaligned) int store. 576907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 5778155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen if (VT == MVT::v8i16 || VT == MVT::v4i32 || 5788155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen VT == MVT::v2i64 || VT == MVT::v2f64 || 5798155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen VT == MVT::v4f32 || VT == MVT::v16i8 || 5808155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen VT == MVT::ppcf128) 5818155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen intVT = MVT::i128; 5828155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen else if (VT==MVT::f64 || 5838155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen VT == MVT::v8i8 || VT == MVT::v4i16 || 5848155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen VT == MVT::v2i32 || VT == MVT::v1i64 || 5858155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen VT == MVT::v2f32) 586907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 587907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (VT==MVT::f32) 588907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 589907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 5908155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen assert(0 && "Unaligned load of unsupported type"); 591907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 592907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, intVT, Val); 593907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getStore(Chain, Result, Ptr, ST->getSrcValue(), 594907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, ST->isVolatile(), Alignment); 595907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 596b625f2f8960de32bc973092aaee8ac62863006feDan Gohman assert(MVT::isInteger(ST->getMemoryVT()) && 5978155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen !MVT::isVector(ST->getMemoryVT()) && 598907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen "Unaligned store of unknown type."); 599f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 600b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType NewStoredVT = ST->getMemoryVT() - 1; 601f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewStoredVT); 602f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 603f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 604f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Divide the stored value in two parts. 605f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 606f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo = Val; 607f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Hi = DAG.getNode(ISD::SRL, VT, Val, ShiftAmount); 608f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 609f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Store the two parts 610f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Store1, Store2; 611f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store1 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Lo:Hi, Ptr, 612f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset, NewStoredVT, 613f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->isVolatile(), Alignment); 614f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 615f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 616dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 617f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store2 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Hi:Lo, Ptr, 618f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset + IncrementSize, 619f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewStoredVT, ST->isVolatile(), Alignment); 620f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 621f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::TokenFactor, MVT::Other, Store1, Store2); 622f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 623f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 624f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedLoad - Expands an unaligned load to 2 half-size loads. 625f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 626f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedLoad(LoadSDNode *LD, SelectionDAG &DAG, 627f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 628f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int SVOffset = LD->getSrcValueOffset(); 629f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = LD->getChain(); 630f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = LD->getBasePtr(); 631f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = LD->getValueType(0); 632b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType LoadedVT = LD->getMemoryVT(); 6338155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen if (MVT::isFloatingPoint(VT) || MVT::isVector(VT)) { 634907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a (misaligned) integer load of the same size, 6358155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // then bitconvert to floating point or vector. 636907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 6378155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen if (LoadedVT == MVT::v8i16 || LoadedVT == MVT::v4i32 || 6388155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen LoadedVT == MVT::v2i64 || LoadedVT == MVT::v2f64 || 6398155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen LoadedVT == MVT::v4f32 || LoadedVT == MVT::v16i8 || 6408155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen LoadedVT == MVT::ppcf128) 6418155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen intVT = MVT::i128; 6428155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen else if (LoadedVT == MVT::f64 || 6438155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen LoadedVT == MVT::v8i8 || LoadedVT == MVT::v4i16 || 6448155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen LoadedVT == MVT::v2i32 || LoadedVT == MVT::v1i64 || 6458155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen LoadedVT == MVT::v2f32) 646907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 647e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner else if (LoadedVT == MVT::f32) 648907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 649907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 6508155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen assert(0 && "Unaligned load of unsupported type"); 651907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 652907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand newLoad = DAG.getLoad(intVT, Chain, Ptr, LD->getSrcValue(), 653907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, LD->isVolatile(), 654907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen LD->getAlignment()); 655907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, LoadedVT, newLoad); 6568155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen if (MVT::isFloatingPoint(VT) && LoadedVT != VT) 657907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, VT, Result); 658907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 659907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Ops[] = { Result, Chain }; 660907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 661907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Ops, 2); 662907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 6638155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen assert(MVT::isInteger(LoadedVT) && !MVT::isVector(LoadedVT) && 664e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner "Unaligned load of unsupported type."); 665e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 6668155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // Compute the new VT that is half the size of the old one. This is an 6678155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // integer MVT. 668e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned NumBits = MVT::getSizeInBits(LoadedVT); 669e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner MVT::ValueType NewLoadedVT; 6708155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen NewLoadedVT = MVT::getIntegerType(NumBits/2); 671e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner NumBits >>= 1; 672e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 673e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned Alignment = LD->getAlignment(); 674e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned IncrementSize = NumBits / 8; 675f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ISD::LoadExtType HiExtType = LD->getExtensionType(); 676f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 677f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. 678f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (HiExtType == ISD::NON_EXTLOAD) 679f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio HiExtType = ISD::ZEXTLOAD; 680f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 681f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Load the value in two parts 682f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo, Hi; 683f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (TLI.isLittleEndian()) { 684f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 685f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset, NewLoadedVT, LD->isVolatile(), Alignment); 686f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 687f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 688f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), 689f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 690dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 691f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 692f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), SVOffset, 693f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewLoadedVT,LD->isVolatile(), Alignment); 694f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 695f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 696f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 697f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 698dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 699f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 700f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 701f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // aggregate the two parts 702f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 703f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Result = DAG.getNode(ISD::SHL, VT, Hi, ShiftAmount); 704f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = DAG.getNode(ISD::OR, VT, Result, Lo); 705f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 706f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 707f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi.getValue(1)); 708f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 709f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ops[] = { Result, TF }; 710f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), Ops, 2); 711f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 712912095becac923ff614d7b07728eb345ada67765Evan Cheng 713826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// UnrollVectorOp - We know that the given vector has a legal type, however 714826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// the operation it performs is not legal and is an operation that we have 715826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// no way of lowering. "Unroll" the vector, splitting out the scalars and 716826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// operating on each element individually. 717826695281344e3a4c4d44d73dd155107aafd689bDan GohmanSDOperand SelectionDAGLegalize::UnrollVectorOp(SDOperand Op) { 718826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType VT = Op.getValueType(); 719826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(isTypeLegal(VT) && 720826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Caller should expand or promote operands that are not legal!"); 721826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(Op.Val->getNumValues() == 1 && 722826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Can't unroll a vector with multiple results!"); 723826695281344e3a4c4d44d73dd155107aafd689bDan Gohman unsigned NE = MVT::getVectorNumElements(VT); 724826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 725826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 726826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 8> Scalars; 727826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 4> Operands(Op.getNumOperands()); 728826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned i = 0; i != NE; ++i) { 729826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned j = 0; j != Op.getNumOperands(); ++j) { 730826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Operand = Op.getOperand(j); 731826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType OperandVT = Operand.getValueType(); 732826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(OperandVT)) { 733826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A vector operand; extract a single element. 734826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType OperandEltVT = MVT::getVectorElementType(OperandVT); 735826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, 736826695281344e3a4c4d44d73dd155107aafd689bDan Gohman OperandEltVT, 737826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operand, 738826695281344e3a4c4d44d73dd155107aafd689bDan Gohman DAG.getConstant(i, MVT::i32)); 739826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } else { 740826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A scalar operand; just use it as is. 741826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = Operand; 742826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 743826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 744826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Scalars.push_back(DAG.getNode(Op.getOpcode(), EltVT, 745826695281344e3a4c4d44d73dd155107aafd689bDan Gohman &Operands[0], Operands.size())); 746826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 747826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 748826695281344e3a4c4d44d73dd155107aafd689bDan Gohman return DAG.getNode(ISD::BUILD_VECTOR, VT, &Scalars[0], Scalars.size()); 749826695281344e3a4c4d44d73dd155107aafd689bDan Gohman} 750826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 751007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands/// GetFPLibCall - Return the right libcall for the given floating point type. 752007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sandsstatic RTLIB::Libcall GetFPLibCall(MVT::ValueType VT, 753007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F32, 754007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F64, 755007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F80, 756007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_PPCF128) { 757007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands return 758007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f32 ? Call_F32 : 759007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f64 ? Call_F64 : 760007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f80 ? Call_F80 : 761007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::ppcf128 ? Call_PPCF128 : 762007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::UNKNOWN_LIBCALL; 763007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands} 764007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands 765a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 766a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 767a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 768a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 7693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 77009ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 77109ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 77209ec1b058331aadb29a348091611d23892b5c492Chris Lattner 773c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 774e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 77545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 776e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 7773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 778e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 77945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 78045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 781c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 782c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 7833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 784c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 78503c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 7863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 78945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 79045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 791718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 792e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 7933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7949373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 7953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 796456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 797456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 7983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 799948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 800948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 801948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 802948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 803948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 80437efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 805948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 8063181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 807948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 808948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 809b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 810948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 811948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 812948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 81369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case ISD::MEMOPERAND: 814948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 815948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 816948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 817a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 818948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 819948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 8203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 821d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 822d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 823d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 824f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 825c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 826d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 827c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 828f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 829d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 830d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 831d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 832d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 833d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 834d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 835e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 83639833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 837e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 8383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 8393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 8400d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 8413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 842b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 84303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 84437efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 84537efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 8460c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 8470c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 848948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 849948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 850948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 851948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 8520c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 8530c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 8540c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 8553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 856bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 857bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 858bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 859bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 860bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 861bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 862bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 863bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 864bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 865bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 866055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov case ISD::FRAME_TO_ARGS_OFFSET: { 867066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 868066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 869066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov default: assert(0 && "This action is not supported yet!"); 870066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Custom: 871066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 872066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov if (Result.Val) break; 873066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov // Fall Thru 874066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Legal: 875066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = DAG.getConstant(0, VT); 876066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 877066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov } 878055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov } 879066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 8802bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 8812bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 8822bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey MVT::ValueType VT = Node->getValueType(0); 8832bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8842bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 8852bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 8868782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 887b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp1, Reg, VT); 8882bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8892bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8902bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 8912bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 8922bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 8932bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 894eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 895eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 896eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 897b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Ops, 2); 8988782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8998782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 9008782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 901eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 902b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 903b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 904b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->getNumValues() == 2 && 905b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 906b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 907b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 908b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 909b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 910b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 911b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 912b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 913b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? Tmp2 : Tmp1; 9148782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 9158782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 9168782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 9178782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey MVT::ValueType VT = Node->getValueType(0); 9188782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9198782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 9208782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 9218782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 922b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp2, Reg, VT); 9238782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 9248782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 9258782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 9268782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 9278782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 9288782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 929eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 930eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 931eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 932b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Ops, 2); 9332bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 9342bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 9352bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 936eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 937b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 938b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 939b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->getNumValues() == 2 && 940b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 941b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 942b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 943b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 944b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 945b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 946b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 947b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 948b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? Tmp2 : Tmp1; 9496d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky case ISD::EH_RETURN: { 9502365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 9512365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // The only "good" option for this node is to custom lower it. 9522365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9532365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov default: assert(0 && "This action is not supported at all!"); 9542365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Custom: 9552365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 9562365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov if (Result.Val) break; 9572365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Fall Thru 9582365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Legal: 9592365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Target does not know, how to lower this, lower to noop 9602365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = LegalizeOp(Node->getOperand(0)); 9612365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 9622365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov } 9636d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky } 9642365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 96508951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 96608951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 96708951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 968c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 96908951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 970308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 971c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 972456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 973456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 97469a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 97569a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 9767310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 977f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 978c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 9797310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 980f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 981c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 982f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 983c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 984c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 985c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 986c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 9877310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 9887310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 98913c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 99013c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 99113c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 99213c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 99313c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 994fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 995fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 996fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 997ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 998ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 999fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 1000fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 1001fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 1002f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen Result = DAG.getConstantFP(APFloat(APInt(MVT::getSizeInBits(VT), 0)), 1003f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen VT); 1004fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 1005fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 1006fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1007ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 1008fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1009fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 1010fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1011fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 1012d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 101348b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 101448b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 101548b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 1016f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1017d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1018d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1019f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 102010d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 102110d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 102248b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 102310d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 102410d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 102510d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 102613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 102713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 102813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 102913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 103013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 103113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 103213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 103313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 103413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 103513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 103613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 103713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 103813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 1039d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 104036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 104136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 104236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 104336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 104436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 104536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 104636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 104736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 1048f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 104944c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 1050abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 10511ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 1052abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 105344c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 1054abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 1055e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 1056abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 1057e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 105844c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 1059abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1060bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 1061abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 1062abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 1063abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 1064abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1065abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 1066abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 1067abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 1068abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 1069bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 1070abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 1071d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 1072d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 1073a647c92ec2b3c91e1e6de25cc5c7860912c7626bEvan Cheng unsigned ID = MMI->RecordSourceLine(Line, Col, SrcFile); 1074abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 1075bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Ops.push_back(DAG.getConstant(0, MVT::i32)); // a debug label 1076bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Result = DAG.getNode(ISD::LABEL, MVT::Other, &Ops[0], Ops.size()); 1077abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1078e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 1079e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 1080e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 108136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1082e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 108336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 10849ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 10859ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 1086f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 108736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 10889ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 10899ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 10909ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 10919ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 10929ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 10939ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 10949ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 10959ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 109636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 109736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 1098f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 109936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 110036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 110136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 110236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1103a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng 1104a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng case ISD::DECLARE: 1105a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng assert(Node->getNumOperands() == 3 && "Invalid DECLARE node!"); 1106a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng switch (TLI.getOperationAction(ISD::DECLARE, MVT::Other)) { 1107a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng default: assert(0 && "This action is not supported yet!"); 1108a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng case TargetLowering::Legal: 1109a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1110a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the address. 1111a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the variable. 1112a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1113a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng break; 1114e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner case TargetLowering::Expand: 1115e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 1116e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner break; 1117a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng } 1118a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng break; 1119f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 1120f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 1121abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 1122f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 1123f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 1124abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1125abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1126abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 1127abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 1128abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 1129c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 1130abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1131abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1132abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1133abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 11341ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 1135bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng assert(Node->getNumOperands() == 3 && "Invalid LABEL node!"); 11361ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 1137abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 1138abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1139abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1140abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 1141bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the "flavor" operand. 1142bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1143f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 1144a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 1145a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 1146a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 1147f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 1148551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 114936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 115022c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth case ISD::MEMBARRIER: { 115122c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth assert(Node->getNumOperands() == 6 && "Invalid MemBarrier node!"); 1152d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth switch (TLI.getOperationAction(ISD::MEMBARRIER, MVT::Other)) { 1153d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 1154d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth case TargetLowering::Legal: { 1155d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth SDOperand Ops[6]; 1156d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Ops[0] = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1157e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands for (int x = 1; x < 6; ++x) { 1158e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands Ops[x] = Node->getOperand(x); 1159e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands if (!isTypeLegal(Ops[x].getValueType())) 1160e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands Ops[x] = PromoteOp(Ops[x]); 1161e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands } 1162d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Result = DAG.UpdateNodeOperands(Result, &Ops[0], 6); 1163d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth break; 1164d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth } 1165d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth case TargetLowering::Expand: 1166d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth //There is no libgcc call for this op 1167d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Result = Node->getOperand(0); // Noop 1168d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth break; 1169d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth } 117022c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth break; 117122c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth } 117222c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth 1173ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LCS: 1174ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LAS: 1175ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_SWAP: { 1176ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth assert(((Node->getNumOperands() == 4 && Node->getOpcode() == ISD::ATOMIC_LCS) || 1177ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth (Node->getNumOperands() == 3 && Node->getOpcode() == ISD::ATOMIC_LAS) || 1178ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth (Node->getNumOperands() == 3 && Node->getOpcode() == ISD::ATOMIC_SWAP)) && 1179ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth "Invalid MemBarrier node!"); 1180ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth int num = Node->getOpcode() == ISD::ATOMIC_LCS ? 4 : 3; 1181ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth MVT::ValueType VT = Node->getValueType(0); 1182ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth switch (TLI.getOperationAction(ISD::ATOMIC_LCS, VT)) { 1183ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 1184ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case TargetLowering::Legal: { 1185ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth SDOperand Ops[4]; 1186ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth for (int x = 0; x < num; ++x) 1187ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Ops[x] = LegalizeOp(Node->getOperand(x)); 1188ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Result = DAG.UpdateNodeOperands(Result, &Ops[0], num); 1189ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1190ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1191ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth return Result.getValue(Op.ResNo); 1192ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 1193ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 1194ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 1195ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 1196ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 1197ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 1198c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 1199c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 1200c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 1201c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 1202c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 12033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 12043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 12053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1206c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 1207c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 1208c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (Tmp1.Val) 1209c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 1210c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1212c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 12143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 12153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 12163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 12173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 12183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 12193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 12203181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 12213181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 1222e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Legal: 1223e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 12243181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 12253181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 12263181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 12273181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 12283181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 12293181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 12303181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 1231e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Expand: { 1232e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // Check to see if this FP immediate is already legal. 1233e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman bool isLegal = false; 1234e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 1235e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman E = TLI.legal_fpimm_end(); I != E; ++I) { 1236e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (CFP->isExactlyValue(*I)) { 1237e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman isLegal = true; 1238e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1239e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1240e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1241e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // If this is a legal constant, turn it into a TargetConstantFP node. 1242e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (isLegal) 1243e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1244279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 12453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1246e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 12473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 12483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1249040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1250040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1251c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1252c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1253c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1254c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1255c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1256c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1257c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1258c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1259040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1260f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1261040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1262c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1263c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1264f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1265a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1266a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1267fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1268fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1269f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1270fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1271b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1272b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 12730f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 12740f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // The number of incoming and outgoing values should match; unless the final 12750f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // outgoing value is a flag. 12760f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling assert((Tmp3.Val->getNumValues() == Result.Val->getNumValues() || 12770f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling (Tmp3.Val->getNumValues() == Result.Val->getNumValues() + 1 && 12780f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp3.Val->getValueType(Tmp3.Val->getNumValues() - 1) == 12790f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling MVT::Flag)) && 1280b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1281e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1282f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1283e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1284b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 12850f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling if (Tmp3.Val->getValueType(i) == MVT::Flag) 12860f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling continue; 1287b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 1288e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 1289e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1290e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 1291e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1292e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1293557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1294557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1295557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1296557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1297557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1298557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1299557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1300557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1301557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1302557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1303557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1304557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1305557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1306557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp3 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1307557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1308557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1309557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1310b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1311b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 13122332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 13132332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 13142332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 13152332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 13162332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 13172332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13182332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13192332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1320ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1321ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 1322b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 13232332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13242332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13252332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 13262332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 13272332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 13280325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 13290325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // The type of the value to insert may not be legal, even though the vector 13300325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // type is legal. Legalize/Promote accordingly. We do not handle Expand 13310325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // here. 13320325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 13330325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman default: assert(0 && "Cannot expand insert element operand"); 13340325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 13350325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 13360325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 13372332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 13382332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 13392332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 13402332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 13412332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 13422332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 13432332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 13452281a991414f681c482157265461b29a923ef620Nate Begeman Tmp4 = TLI.LowerOperation(Result, DAG); 13462281a991414f681c482157265461b29a923ef620Nate Begeman if (Tmp4.Val) { 13472281a991414f681c482157265461b29a923ef620Nate Begeman Result = Tmp4; 13482332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13492332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13502332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 13512332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 13528d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 13538d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 13548d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 13550325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // SCALAR_TO_VECTOR requires that the type of the value being inserted 13560325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // match the element type of the vector being created. 13570325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (Tmp2.getValueType() == 13580325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman MVT::getVectorElementType(Op.getValueType())) { 13590325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 13600325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1.getValueType(), Tmp2); 13610325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 13620325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 13630325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 13640325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman MVT::ValueType ShufMaskEltVT = MVT::getVectorElementType(ShufMaskVT); 13650325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 13660325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // We generate a shuffle of InVec and ScVec, so the shuffle mask 13670325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // should be 0,1,2,3,4,5... with the appropriate element replaced with 13680325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // elt 0 of the RHS. 13690325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SmallVector<SDOperand, 8> ShufOps; 13700325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman for (unsigned i = 0; i != NumElts; ++i) { 13710325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (i != InsertPos->getValue()) 13720325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 13730325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman else 13740325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 13750325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 13760325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 13770325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman &ShufOps[0], ShufOps.size()); 13780325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 13790325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 13800325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1, ScVec, ShufMask); 13810325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = LegalizeOp(Result); 13820325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman break; 13838d5a894501b7546dee94df03118b90126c420820Chris Lattner } 13848d5a894501b7546dee94df03118b90126c420820Chris Lattner } 13858d5a894501b7546dee94df03118b90126c420820Chris Lattner 13862332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 13872332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 13882332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 13892332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 13902332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 13912332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 1392f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 13930325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 1394f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 1395f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 139685dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(VT); 139769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1398bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr.Val); 139969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 140069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1401eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 140269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, 14033069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 140469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SPFI); 1405eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 1406eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 1407f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 1408f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 1409eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 1410f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 1411f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 1412f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 1413eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 14140325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Ch = DAG.getTruncStore(Ch, Tmp2, StackPtr2, 14150325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman PseudoSourceValue::getFixedStack(), SPFI, EltVT); 1416eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 141769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Result = DAG.getLoad(VT, Ch, StackPtr, 14183069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 14192332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14202332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14212332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14222332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1423ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 14244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 14254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 14264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 14274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 14284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1429ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1430ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1431ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1432ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1433ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1434ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1435ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 14364d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 14374d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 14384d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 14394d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 14404d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 14414d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 14424d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 14434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 14444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1445ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1446ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1447ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 144887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 144987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 145087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 145187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 145287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 145387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 14544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 14554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 14564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 14574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 14584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 14594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 14604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 146118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 146218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 146318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 146418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 146518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 146618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 146718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 146818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 146951eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 147018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 147118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 147218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1473bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 147418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 147518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 147618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 147718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 147818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 147918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 148018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 148118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 148218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 148318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 148418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 148518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 148618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 148718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 148818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1489bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 14904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 149118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 14924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 14934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 14944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 14954352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 14964352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 14974352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 14984352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 14994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 15004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 15014352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 15024352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 15034352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 15044352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 15054352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 15064352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 15074352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 150887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 150987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1510384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1511384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 15127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1513384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1514384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1516384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1517384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 15187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 15197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 15207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 15217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 15236595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 15246595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 15256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 15266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 15276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 15296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 15306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 153100755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 15326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1533c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1534c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1535c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 15366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 15386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 15396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 15426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1543c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1544b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1545b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1546b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 15476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 15496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1550f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 15516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1552f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 15536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 15546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 15564b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 15574b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 15584b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 15594b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 15606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 15616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 15626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 15636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 15646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 15656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 15666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 15676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 15686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 15696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 15716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 15726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 15736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 15746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 157516cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 15766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 15776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 15786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 15796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 1580718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 15816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 15826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 15836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 15846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 15856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 15876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 15883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 158970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 159070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 159170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 159270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1593f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 159470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1595f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 159670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 159770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 159870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 159970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 160070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1601f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 160270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 160370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1604f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 160570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 16066a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 16074b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 16086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 16096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 16104b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 16114b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 16124b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 16134b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 16144b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 16154b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1616a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 161761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1618fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1619fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1620fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1621c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1622fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1623c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 16245f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 162561bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1626a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1627903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1628903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1629903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1630903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1631903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 16320f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 16330f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // Chain the dynamic stack allocation so that it doesn't modify the stack 16340f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // pointer when other instructions are using the stack. 16350f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCALLSEQ_START(Chain, 16360f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy())); 16370f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1638903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 163961bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, VT); 164061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 164161bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned Align = cast<ConstantSDNode>(Tmp3)->getValue(); 164261bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 164361bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 164461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 16453e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 16463e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 164761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 16480f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 16490f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 16500f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp2 = 16510f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getCALLSEQ_END(Chain, 16520f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 16530f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 16540f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling SDOperand()); 16550f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1656c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1657c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1658903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1659903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1660903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 16615f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 16625f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1663c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1664c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1665a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1666903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1667a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1668903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1669a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1670903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1671903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1672c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1673c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1674903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1675a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 167625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1677f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 167825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 167925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 168025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 168125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 168225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 168325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 168425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 168525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 168625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 168725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 168825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 168925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 169025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 169125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 169225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 169325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 169425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 169525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 169625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 169725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 169825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 169925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 170025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 170125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 170225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1703ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 170425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1705f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1706ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1707ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1708c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1709ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1710ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 171125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1712c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1713c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 17156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 17176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 17186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1719c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1720c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 172137efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 172237efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 172337efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 172437efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 172537efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 172637efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 172737efe6764568a3829fee26aba532283131d1a104Nate Begeman 172837efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 172937efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 173037efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 173137efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 173237efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 173337efe6764568a3829fee26aba532283131d1a104Nate Begeman } 173437efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 173537efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 17363d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 17373d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17383d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 17393d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17403d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 17413d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 17423d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17433d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 17443d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 17453d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17463d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 17473d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 17483d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 17493d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 17503d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 17513d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 17523d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 17533d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 17543d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 17553d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 17563d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 17573d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17583d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1759acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1760acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 17613d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 17623d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1763acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1764acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1765acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1766acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 176769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, 17683069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 176969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, 17703069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 1771acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1772acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1773cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = LD; 1774acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 17753d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 17763d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 1777cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng // RelocBase can be JumpTable, GOT or some sort of global base. 1778cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng if (PTy != MVT::i32) 1779cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::SIGN_EXTEND, PTy, Addr); 1780cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, 1781cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng TLI.getPICJumpTableRelocBase(Table, DAG)); 17823d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 1783cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 17843d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 17853d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 17863d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1787c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1788c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 17906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 17926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 17936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 179447e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 179547e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 179647e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 179747e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 179847e9223e06390897c3834f8c527001df392570ffChris Lattner break; 17992e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 180047e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1801f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1802f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1803f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 18042e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp2.getValueSizeInBits(); 1805ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 18062e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 1807f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 180847e9223e06390897c3834f8c527001df392570ffChris Lattner break; 180947e9223e06390897c3834f8c527001df392570ffChris Lattner } 18102e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 1811456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1812456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1813c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 18147cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 18157cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 18167cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1817456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1818456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1819456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1820456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1821456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 18227cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 18237cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 18247cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 18257cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 18267cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 18277cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 18287cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18297cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 18307cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 18317cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 18327cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 18337cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18347cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18357cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18367cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18377cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18387cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 18397cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 18416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1843750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1844750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1845750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1846181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1847750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1848722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1849722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1850750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1851750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1852750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1853750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1854750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1855750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1856750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1857750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1858750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1859750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1860456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1861181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1862181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1863456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1864456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1865456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1866456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1867181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 18687cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1869c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1870f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1871466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1872466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1873466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 18742d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1875466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1876466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1877466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1878466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1879466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1880466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1881456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1882466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1883466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1884f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1885f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1886f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1887f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1888f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1889b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(LD->getMemoryVT())); 1890f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1891f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1892f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1893f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1894f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1895907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1896907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1897f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1898f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1899f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1900466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1901466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1902466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1903466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1904466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1905466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1906466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1907466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1908466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1909466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1910466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1911466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1912466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1913466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1914d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1915d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1916466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 191741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1918466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1919f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1920466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1921466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1922466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1923466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1924466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1925466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1926466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 1927b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType SrcVT = LD->getMemoryVT(); 1928f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned SrcWidth = MVT::getSizeInBits(SrcVT); 1929f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands int SVOffset = LD->getSrcValueOffset(); 1930f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned Alignment = LD->getAlignment(); 1931f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands bool isVolatile = LD->isVolatile(); 1932f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1933f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (SrcWidth != MVT::getStoreSizeInBits(SrcVT) && 1934f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Some targets pretend to have an i1 loading operation, and actually 1935f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // load an i8. This trick is correct for ZEXTLOAD because the top 7 1936f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bits are guaranteed to be zero; it helps the optimizers understand 1937f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // that these bits are zero. It is also useful for EXTLOAD, since it 1938f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // tells the optimizers that those bits are undefined. It would be 1939f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // nice to have an effective generic way of getting these benefits... 1940f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Until such a way is found, don't insist on promoting i1 here. 1941f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands (SrcVT != MVT::i1 || 1942f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI.getLoadXAction(ExtType, MVT::i1) == TargetLowering::Promote)) { 1943f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Promote to a byte-sized load if not loading an integral number of 1944f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24. 1945f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned NewWidth = MVT::getStoreSizeInBits(SrcVT); 1946f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MVT::ValueType NVT = MVT::getIntegerType(NewWidth); 1947f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Ch; 1948f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1949f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // The extra bits are guaranteed to be zero, since we stored them that 1950f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // way. A zext load from NVT thus automatically gives zext from SrcVT. 1951f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1952f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ISD::LoadExtType NewExtType = 1953f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtType == ISD::ZEXTLOAD ? ISD::ZEXTLOAD : ISD::EXTLOAD; 1954f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1955f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(NewExtType, Node->getValueType(0), 1956f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), SVOffset, 1957f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands NVT, isVolatile, Alignment); 1958f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1959f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = Result.getValue(1); // The chain. 1960f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1961f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 1962f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Having the top bits zero doesn't help when sign extending. 1963f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1964f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 1965f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else if (ExtType == ISD::ZEXTLOAD || NVT == Result.getValueType()) 1966f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // All the top bits are guaranteed to be zero - inform the optimizers. 1967f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::AssertZext, Result.getValueType(), Result, 1968f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getValueType(SrcVT)); 1969f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1970f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 1971f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 1972f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else if (SrcWidth & (SrcWidth - 1)) { 1973f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If not loading a power-of-2 number of bits, expand as two loads. 1974f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(MVT::isExtendedVT(SrcVT) && !MVT::isVector(SrcVT) && 1975f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Unsupported extload!"); 1976f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned RoundWidth = 1 << Log2_32(SrcWidth); 1977f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(RoundWidth < SrcWidth); 1978f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ExtraWidth = SrcWidth - RoundWidth; 1979f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtraWidth < RoundWidth); 1980f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 1981f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Load size not an integral number of bytes!"); 1982f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MVT::ValueType RoundVT = MVT::getIntegerType(RoundWidth); 1983f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MVT::ValueType ExtraVT = MVT::getIntegerType(ExtraWidth); 1984f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Lo, Hi, Ch; 1985f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned IncrementSize; 1986f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1987f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (TLI.isLittleEndian()) { 1988f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> ZEXTLOAD:i16 | (shl EXTLOAD@+2:i8, 16) 1989f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the bottom RoundWidth bits. 1990f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 1991f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 1992f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 1993f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1994f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 1995f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 1996f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 1997f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 1998f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1999f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2000f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2001f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2002f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2003f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2004f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2005f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2006f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2007f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2008f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2009f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2010f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 2011f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2012f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2013f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2014f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 2015f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Big endian - avoid unaligned loads. 2016f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> (shl EXTLOAD:i16, 8) | ZEXTLOAD@+2:i8 2017f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the top RoundWidth bits. 2018f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 2019f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 2020f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 2021f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2022f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 2023f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 2024f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 2025f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 2026f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 2027f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2028f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2029f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2030f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2031f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2032f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2033f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2034f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2035f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2036f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2037f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2038f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 2039f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2040f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2041f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2042f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2043f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2044f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 2045f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 2046f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2047f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands switch (TLI.getLoadXAction(ExtType, SrcVT)) { 2048f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands default: assert(0 && "This action is not supported yet!"); 2049f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Custom: 2050f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands isCustom = true; 2051f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // FALLTHROUGH 2052f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Legal: 2053f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 2054f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getValue(0); 2055f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getValue(1); 2056f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2057f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (isCustom) { 2058f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp3 = TLI.LowerOperation(Result, DAG); 2059f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (Tmp3.Val) { 2060f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp3); 2061f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2062f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2063f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2064f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If this is an unaligned load and the target doesn't support it, 2065f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // expand it. 2066f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 2067f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 2068b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(LD->getMemoryVT())); 2069f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (LD->getAlignment() < ABIAlignment){ 2070f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 2071f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI); 2072f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getOperand(0); 2073f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getOperand(1); 2074f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp1); 2075f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp2); 2076f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2077f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2078f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2079f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2080f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Expand: 2081f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 2082f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 2083f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 2084f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), 2085f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2086f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 2087f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 2088f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Load.getValue(1)); 2089f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2090f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2091f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 2092f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Turn the unsupported load into an EXTLOAD followed by an explicit 2093f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // zero/sign extend inreg. 2094f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 2095f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), 2096f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), SrcVT, 2097f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2098f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand ValRes; 2099f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 2100f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 2101f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 2102f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else 2103f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 2104f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 2105f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 2106466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 2107466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 21089d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 2109f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2110466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 2111466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 2112466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2113466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2114466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 211501ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 211601ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 21175dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 21185dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 21195dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 2120c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 21215dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 21225dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 21235dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 21245dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 21255dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 21265dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 21275dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 21285dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 21295dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 21305dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 21315dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 21325dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21335dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 21345dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 21355dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 21365dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 21375dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 21385dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 21395dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 21405dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 21415dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 21425dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21445dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 21463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 21473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2148edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2149c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 2150d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 21517310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 2152d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 2153f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 2154c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 21557310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 2156f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 2157c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 2158f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 2159c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 2160c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 2161c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 2162c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 21637310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 21647310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 21657310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 21667310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 2167c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 21687310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2169c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 21707310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 21713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 21733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 21743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 21756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 21766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 21776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 21786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 21796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 2180f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 21813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 21828e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 218398f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 21848e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 2185f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 21863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 21878e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 21883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2189f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 21907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(Tmp2.getValueType())) { 2191f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 2192f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 2193edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 2194edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 21950753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 2196edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 2197edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 219813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 219913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 220013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 220113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 2202f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 2203f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2204f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 2205e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Tmp2.ResNo; 2206e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 2207e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 2208f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 22097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2210ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 2211f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 22127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2213ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 22147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22158e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2216f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 2217f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 22187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 22197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22208e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2221b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2222b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 2223b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 2224b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2225f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 2226f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 2227f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2228f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2229b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 2230b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 2231f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 2232f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 2233fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 2234f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2235f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2236f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2237edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 22383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 22398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 22408e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2241c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 22428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 22433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 2246c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 22473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 2249f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 22503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 22518e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 22523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 22533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 22544e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 22558e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 22563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 22583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 22596595cb3000d7f5f8e9a76d556aa8609db91b7887Dan Gohman assert(!MVT::isExtendedVT(Node->getOperand(i).getValueType()) && 2260b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 22613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 22623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 22638e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 226413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 226513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 226613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 226713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 2268edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 22693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 22718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 22723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2273c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2274c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 2275f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 2276c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 2277f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 2278f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 22793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 228217c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 22836862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 22846862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 22856862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 22866862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 22876862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 22886862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 22896862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 22906862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 22916862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 229217c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 22933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2294f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 22958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 22968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 22978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 2298d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 2299d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 2300d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 23018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 23028b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 2303d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 2304d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 2305d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 2306d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 2307d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 2308d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 23099e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // We generally can't do this one for long doubles. 23102b4c279a8e203fa8b13adf7ba3a5d4c8bef70df3Chris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 23113cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (CFP->getValueType(0) == MVT::f32 && 23123cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getTypeAction(MVT::i32) == Legal) { 23139d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen Tmp3 = DAG.getConstant((uint32_t)CFP->getValueAPF(). 23149d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen convertToAPInt().getZExtValue(), 23153f6eb7419de437436265831fce92f62498556e08Dale Johannesen MVT::i32); 23169e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23179e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 23189e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 23199e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (CFP->getValueType(0) == MVT::f64) { 23203cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // If this target supports 64-bit registers, do a single 64-bit store. 23213cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (getTypeAction(MVT::i64) == Legal) { 23223cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp3 = DAG.getConstant(CFP->getValueAPF().convertToAPInt(). 23233cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getZExtValue(), MVT::i64); 23243cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23253cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23263cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 23273cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } else if (getTypeAction(MVT::i32) == Legal) { 23283cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // Otherwise, if the target supports 32-bit registers, use 2 32-bit 23293cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // stores. If the target supports neither 32- nor 64-bits, this 23303cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // xform is certainly not worth it. 23313cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner uint64_t IntVal =CFP->getValueAPF().convertToAPInt().getZExtValue(); 23323cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SDOperand Lo = DAG.getConstant(uint32_t(IntVal), MVT::i32); 23333cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SDOperand Hi = DAG.getConstant(uint32_t(IntVal >>32), MVT::i32); 23340753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) std::swap(Lo, Hi); 23353cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 23363cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 23373cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23383cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 23390bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(4)); 23403cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset+4, 2341dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands isVolatile, MinAlign(Alignment, 4U)); 23423cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 23433cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 23443cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 23453cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } 2346d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2347d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2348d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 2349b625f2f8960de32bc973092aaee8ac62863006feDan Gohman switch (getTypeAction(ST->getMemoryVT())) { 23508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 23518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 23522efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 23538b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 23548b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 23558b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 23568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 23578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2358f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2359f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2360f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2361f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2362f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2363b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(ST->getMemoryVT())); 2364f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2365f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2366f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2367f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2368f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 23698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 23708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 23718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 23728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 23738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 23748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 23758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 23768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 23778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 2378d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 2379d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 23808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 23818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 23822efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 2383f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 23848b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 23858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 23868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 23878b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2388b625f2f8960de32bc973092aaee8ac62863006feDan Gohman SVOffset, ST->getMemoryVT(), 2389d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 23908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 239103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 23928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 23938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 23948b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 2395c7029805ef35ce9805931067b841e6af11db382eChris Lattner 23968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 23978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 23988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 23997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (MVT::isVector(ST->getValue().getValueType())) { 24008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 2401e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = ST->getValue().ResNo; 24020bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType InVT = InVal->getValueType(InIx); 24030bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner unsigned NumElems = MVT::getVectorNumElements(InVT); 24040bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType EVT = MVT::getVectorElementType(InVT); 24058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2407ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 24088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 24097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2410ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 241121be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = LegalizeOp(ST->getValue()); 24128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2413d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 24178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 241821be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = ScalarizeVectorOp(ST->getValue()); 24198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2420d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 24228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 24238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 242621be3849aef47e6d8c26f31b11def57d59167863Dan Gohman SplitVectorOp(ST->getValue(), Lo, Hi); 24275db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman IncrementSize = MVT::getVectorNumElements(Lo.Val->getValueType(0)) * 24285db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::getSizeInBits(EVT)/8; 24298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2430c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 243121be3849aef47e6d8c26f31b11def57d59167863Dan Gohman ExpandOp(ST->getValue(), Lo, Hi); 24327b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 24338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24340753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 24358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2436c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2437c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24388b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2439d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24407b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 24417b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 24427b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 24437b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 24447b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 24457b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 24467b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 24478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 24480bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 24498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 24508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2451d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2452dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 24538b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2454d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24558b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 24568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 24588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 2459ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner switch (getTypeAction(ST->getValue().getValueType())) { 2460ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Legal: 2461ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = LegalizeOp(ST->getValue()); 2462ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2463ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Promote: 2464ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // We can promote the value, the truncstore will still take care of it. 2465ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = PromoteOp(ST->getValue()); 2466ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2467ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Expand: 2468ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // Just store the low part. This may become a non-trunc store, so make 2469ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // sure to use getTruncStore, not UpdateNodeOperands below. 2470ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner ExpandOp(ST->getValue(), Tmp3, Tmp4); 2471ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner return DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2472ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner SVOffset, MVT::i8, isVolatile, Alignment); 2473ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner } 24747e857201f387d004571e6058e2ea709163500f38Duncan Sands 2475b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType StVT = ST->getMemoryVT(); 24767e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned StWidth = MVT::getSizeInBits(StVT); 24777e857201f387d004571e6058e2ea709163500f38Duncan Sands 24787e857201f387d004571e6058e2ea709163500f38Duncan Sands if (StWidth != MVT::getStoreSizeInBits(StVT)) { 24797e857201f387d004571e6058e2ea709163500f38Duncan Sands // Promote to a byte-sized store with upper bits zero if not 24807e857201f387d004571e6058e2ea709163500f38Duncan Sands // storing an integral number of bytes. For example, promote 24817e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1) 24827e857201f387d004571e6058e2ea709163500f38Duncan Sands MVT::ValueType NVT = MVT::getIntegerType(MVT::getStoreSizeInBits(StVT)); 24837e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getZeroExtendInReg(Tmp3, StVT); 24848b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 24857e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, NVT, isVolatile, Alignment); 24867e857201f387d004571e6058e2ea709163500f38Duncan Sands } else if (StWidth & (StWidth - 1)) { 24877e857201f387d004571e6058e2ea709163500f38Duncan Sands // If not storing a power-of-2 number of bits, expand as two stores. 24887e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(MVT::isExtendedVT(StVT) && !MVT::isVector(StVT) && 24897e857201f387d004571e6058e2ea709163500f38Duncan Sands "Unsupported truncstore!"); 24907e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned RoundWidth = 1 << Log2_32(StWidth); 24917e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(RoundWidth < StWidth); 24927e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ExtraWidth = StWidth - RoundWidth; 24937e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(ExtraWidth < RoundWidth); 24947e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 24957e857201f387d004571e6058e2ea709163500f38Duncan Sands "Store size not an integral number of bytes!"); 24967e857201f387d004571e6058e2ea709163500f38Duncan Sands MVT::ValueType RoundVT = MVT::getIntegerType(RoundWidth); 24977e857201f387d004571e6058e2ea709163500f38Duncan Sands MVT::ValueType ExtraVT = MVT::getIntegerType(ExtraWidth); 24987e857201f387d004571e6058e2ea709163500f38Duncan Sands SDOperand Lo, Hi; 24997e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned IncrementSize; 25007e857201f387d004571e6058e2ea709163500f38Duncan Sands 25017e857201f387d004571e6058e2ea709163500f38Duncan Sands if (TLI.isLittleEndian()) { 25027e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 X, TRUNCSTORE@+2:i8 (srl X, 16) 25037e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the bottom RoundWidth bits. 25047e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25057e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, RoundVT, 25067e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 25077e857201f387d004571e6058e2ea709163500f38Duncan Sands 25087e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25097e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25107e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25117e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25127e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25137e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 25147e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 25157e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25167e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25177e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25187e857201f387d004571e6058e2ea709163500f38Duncan Sands // Big endian - avoid unaligned stores. 25197e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 (srl X, 8), TRUNCSTORE@+2:i8 X 25207e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the top RoundWidth bits. 25217e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25227e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 25237e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset, 25247e857201f387d004571e6058e2ea709163500f38Duncan Sands RoundVT, isVolatile, Alignment); 25257e857201f387d004571e6058e2ea709163500f38Duncan Sands 25267e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25277e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25287e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25297e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25307e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25317e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25327e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25337e857201f387d004571e6058e2ea709163500f38Duncan Sands } 2534c7029805ef35ce9805931067b841e6af11db382eChris Lattner 25357e857201f387d004571e6058e2ea709163500f38Duncan Sands // The order of the stores doesn't matter. 25367e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 25377e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25387e857201f387d004571e6058e2ea709163500f38Duncan Sands if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 25397e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 != ST->getBasePtr()) 25407e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 25417e857201f387d004571e6058e2ea709163500f38Duncan Sands ST->getOffset()); 25427e857201f387d004571e6058e2ea709163500f38Duncan Sands 25437e857201f387d004571e6058e2ea709163500f38Duncan Sands switch (TLI.getTruncStoreAction(ST->getValue().getValueType(), StVT)) { 25447e857201f387d004571e6058e2ea709163500f38Duncan Sands default: assert(0 && "This action is not supported yet!"); 25457e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Legal: 25467e857201f387d004571e6058e2ea709163500f38Duncan Sands // If this is an unaligned store and the target doesn't support it, 25477e857201f387d004571e6058e2ea709163500f38Duncan Sands // expand it. 25487e857201f387d004571e6058e2ea709163500f38Duncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 25497e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 2550b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(ST->getMemoryVT())); 25517e857201f387d004571e6058e2ea709163500f38Duncan Sands if (ST->getAlignment() < ABIAlignment) 25527e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 25537e857201f387d004571e6058e2ea709163500f38Duncan Sands TLI); 25547e857201f387d004571e6058e2ea709163500f38Duncan Sands } 25557e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 25567e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Custom: 25577e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = TLI.LowerOperation(Result, DAG); 25587e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 25597e857201f387d004571e6058e2ea709163500f38Duncan Sands case Expand: 25607e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i16 i32 -> STORE i16 25617e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(isTypeLegal(StVT) && "Do not know how to expand this store!"); 25627e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getNode(ISD::TRUNCATE, StVT, Tmp3); 25637e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), SVOffset, 25647e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 25657e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 2566f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 25678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 25683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 25693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2570f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 257195762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 257295762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2573c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 257495762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2575140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2576140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2577c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2578c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2579c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2580456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2581140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2582140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2583456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2584456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2585c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2586c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 2587c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2588c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2589140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2590456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2591140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 25924f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 25934f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 25944f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2595c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 25964f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2597c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 25984f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2599c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2600c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 26014f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2602456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2603140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2604456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2605456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2606456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2607c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2608c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2609c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 2610456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2611140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2612140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2613140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2614c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2615140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2616140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2617140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2618456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2619456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2620456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2621456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2622140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2623140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 26244f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 26254f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 26264f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 26274f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 26284f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 26294f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 26304f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2631140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2632140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2633140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2634140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 263551b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 263651b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2637c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2638f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2639f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2640f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 26416a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 26426a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 26436a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 26446a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2645f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2646f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 26476a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 26486a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2649f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2650f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 265149c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 265249c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 265349c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 26546a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 26556a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2656c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2657f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 26582ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 265947e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 266047e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 266147e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 266247e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 266347e9223e06390897c3834f8c527001df392570ffChris Lattner break; 26642e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 266547e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2666b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 26672e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp1.getValueSizeInBits(); 2668ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 26692e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 2670b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 267147e9223e06390897c3834f8c527001df392570ffChris Lattner break; 267247e9223e06390897c3834f8c527001df392570ffChris Lattner } 26732e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 26743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 26752ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 267655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2677c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2678456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2679b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 268055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2681456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2682456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2683456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2684456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2685456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2686456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 26879373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 26889373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 26899373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 26909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 26919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 26929373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 26939373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 26949373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 26959373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 26969373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 269755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 269855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 269955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 270055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 270155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 270241f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 270341f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 270441f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 270541f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 2706456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2707456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 270855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2709456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2710456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 271155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 271255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 271355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 271455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 271555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 271655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 27170bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TruncOp != ISD::FP_ROUND) 27180bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 27190bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner else 27200bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result, 27210bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 272255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 272355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 272455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 27253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2726750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2727750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2728750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 27299373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 27309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2731750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 27329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2733750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2734750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2735750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2736750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2737750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2738750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2739750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2740750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2741750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2742750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2743750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2744750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2745750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2746750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2747750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2748750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2749750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2750750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 27519373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 27529373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 27539373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2754750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 27553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2756750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2757750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2758750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2759750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2760750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2761750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2762750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2763750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2764750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2765750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 27663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 27673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2768b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 276973e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2770456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2771456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2772456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2773456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2774456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 27752b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2776456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 27772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 27782b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2779456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2780b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2781ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2782ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2783ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2784ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2785ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 278600755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner MVT::ValueType OldVT = NewInTy; OldVT = OldVT; 2787ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2788ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2789ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2790ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2791ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2792ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2793ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2794ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2795ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2796ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2797ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 27981ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2799ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2800ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2801ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2802ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2803ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2804ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2805ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2806ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2807c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2808c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 28092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2810433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 28115e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2812ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2813b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2814b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2815b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2816b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2817b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2818b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 28192b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2820b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2821b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 28223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2823e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 2824e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 2825e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 2826deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 2827e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 2828e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 2829e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 2830e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 2831e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 2832e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2833deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 2834e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2835e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2836deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 2837e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2838e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2839e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 2840edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 2841e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2842272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2843272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2844272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 28456814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 28466814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 28476814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 2848fa9aa2b424d0a7d9f7201f8fdcf5ccfa05db3a80Chris Lattner ExpandOp(Node->getOperand(3), Tmp4, HiPart); 28496814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 28506814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2851e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2852e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2853e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2854e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2855e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2856272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2857272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2858272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2859272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2860272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2861272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2862272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2863272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2864272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2865272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2866e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2867e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2868e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 286955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 28705c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola SDOperand Tmp6; 28715c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola switch (getTypeAction(Node->getOperand(5).getValueType())) { // bool 28725c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Expand: assert(0 && "Cannot expand this yet!"); 28735c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Legal: 28745c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Tmp6 = LegalizeOp(Node->getOperand(5)); 28755c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola break; 28765c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Promote: 28775c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Tmp6 = PromoteOp(Node->getOperand(5)); 28785c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola break; 28795c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola } 28805c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola 288155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 288255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2883456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2884456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2885456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 28865c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case TargetLowering::Legal: { 28875c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola SDOperand Ops[] = { Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6 }; 28885c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Result = DAG.UpdateNodeOperands(Result, Ops, 6); 2889456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2890456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2891456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2892456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 289355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 28945c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola } 289555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2896e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2897e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2898e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2899a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 290047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListTy Args; 290147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 2902e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 29033bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2904e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2905d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp2; Entry.Ty = IntPtrTy; 290647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2907dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2908dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2909dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2910dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2911dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2912dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2913d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp3; Entry.Ty = Type::Int32Ty; Entry.isSExt = true; 291447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2915d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp4; Entry.Ty = IntPtrTy; Entry.isSExt = false; 291647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2917e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2918e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2919e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2920e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2921b25fe8267182662750dcb76a70a20f4b14a5568dAnton Korobeynikov Entry.Ty = IntPtrTy; 2922b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp2; Args.push_back(Entry); 2923b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp3; Args.push_back(Entry); 2924b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp4; Args.push_back(Entry); 2925e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2926e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2927e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2928e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 292945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2930e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 293100fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(Tmp1, Type::VoidTy, 293200fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, false, false, CallingConv::C, false, 2933e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2934456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 293555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 293655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2937e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2938e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2939e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 294052d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 29415b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 29425b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 29435b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2944f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 294584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 294684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 294784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 294884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 294984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2950c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2951f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 29522c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 295305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 295405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 295505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2956456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2957456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2958456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2959456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2960456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 296105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2962456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 296305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 296405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 296512f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 296605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2967269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 296805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 296905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 297005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 297105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 297205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 29732c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 29742c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 29752c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 29762c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 29772c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 297884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 29792c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 29802c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 29813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 29823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 29833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2984c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2985c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 29863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 29873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 29883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 29893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 29903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 299103c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 299203c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 299303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 299401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 299501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 299601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 299701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 2998826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 29993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3000f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 3001f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 3002f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 3003f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 3004f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 3005f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 3006f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 3007f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 3008f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 3009c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 3010c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3011456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3012e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3013bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 3014456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 3015456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3016456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3017456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 301857030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 3019bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 3020525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman MVT::ValueType VT = Op.getValueType(); 3021525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3022525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if multiply or divide can be lowered using two-result operations. 3023525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 3024525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MUL) { 3025525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We just need the low half of the multiply; try both the signed 3026525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // and unsigned forms. If the target supports both SMUL_LOHI and 3027525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // UMUL_LOHI, form a preference by checking which forms of plain 3028525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // MULH it supports. 3029525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, VT); 3030525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, VT); 3031525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, VT); 3032525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, VT); 3033525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned OpToUse = 0; 3034525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI && !HasMULHS) { 3035525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 3036525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI && !HasMULHU) { 3037525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 3038525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasSMUL_LOHI) { 3039525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 3040525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI) { 3041525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 3042525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3043525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (OpToUse) { 3044525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(OpToUse, VTs, Tmp1, Tmp2).Val, 0); 3045525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3046525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3047525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3048525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHS && 3049525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SMUL_LOHI, VT)) { 3050525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 3051525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3052525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3053525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHU && 3054525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UMUL_LOHI, VT)) { 3055525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 3056525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3057525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3058525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SDIV && 3059525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 3060525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 0); 3061525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3062525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3063525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UDIV && 3064525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 3065525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 0); 3066525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3067525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3068525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3069826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Check to see if we have a libcall for this operator. 3070826695281344e3a4c4d44d73dd155107aafd689bDan Gohman RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3071826695281344e3a4c4d44d73dd155107aafd689bDan Gohman bool isSigned = false; 3072826695281344e3a4c4d44d73dd155107aafd689bDan Gohman switch (Node->getOpcode()) { 3073826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::UDIV: 3074826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::SDIV: 3075826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (VT == MVT::i32) { 3076826695281344e3a4c4d44d73dd155107aafd689bDan Gohman LC = Node->getOpcode() == ISD::UDIV 307756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 3078826695281344e3a4c4d44d73dd155107aafd689bDan Gohman isSigned = Node->getOpcode() == ISD::SDIV; 3079826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3080826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3081826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 3082007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::POW_F32, RTLIB::POW_F64, RTLIB::POW_F80, 3083007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POW_PPCF128); 3084826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3085826695281344e3a4c4d44d73dd155107aafd689bDan Gohman default: break; 3086826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3087826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (LC != RTLIB::UNKNOWN_LIBCALL) { 3088826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Dummy; 3089826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 309052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 309152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 309252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 3093bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 3094bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 3095bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 3096826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3097bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 3098bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 3099cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 3100cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 3101cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 3102cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 3103cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 3104cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 3105cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 3106cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3107cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 3108cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 3109cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 3110cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 3111cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 3112cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 3113cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 3114cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 3115cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3116cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3117cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3118e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 31193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 3120a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3121e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SMUL_LOHI: 3122e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UMUL_LOHI: 3123e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SDIVREM: 3124e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UDIVREM: 3125e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // These nodes will only be produced by target-specific lowering, so 3126e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // they shouldn't be here if they aren't legal. 3127a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 3128e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman "This must be legal!"); 3129525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3130525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3131525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3132525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3133e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman break; 3134e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman 3135a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 3136a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3137a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 3138a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 3139a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 3140a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 3141a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3142a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 3143a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 3144a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3145a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3146a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3147a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3148a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3149a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3150a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 3151a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 3152a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3153a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 31548f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 3155a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 3156912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 3157636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 3158636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 3159636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 3160636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 3161636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 3162912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 3163636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 31648f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 31658f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 31668f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 31678f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 31688f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 31698f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 31708f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 31718f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 31728f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 31738f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 31748f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 31758f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 31768f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 31778f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 31788f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 31798f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 31808f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 31818f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 31828f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 3183912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType NVT = 3184912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 3185912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 3186912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 3187912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 3188a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3189a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3190912095becac923ff614d7b07728eb345ada67765Evan Cheng } 3191a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3192a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3193551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 3194551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 3195551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3196551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3197551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3198551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3199551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3200551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 3201551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 3202551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3203edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 3204551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 3205551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 3206551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3207551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3208551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 3209551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 3210551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3211551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3212551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 3213551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 3214551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3215551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 3216419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 3217419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 3218419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 3219419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 3220419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 3221419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 3222456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3223456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3224456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 3225419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 3226419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 3227419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 3228419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3229419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 3230419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 3231419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 3232419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 3233419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 3234419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 3235456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 3236419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3237419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3238419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3239419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3240419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 3241c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 3242c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 324301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3244c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3245c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3246456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3247c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3248456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 3249456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3250456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3251456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 325257030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 3253c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3254456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3255456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3256456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3257456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 325857030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 3259525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman case TargetLowering::Expand: { 32606b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 326147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 3262525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman MVT::ValueType VT = Node->getValueType(0); 3263525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3264525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if remainder can be lowered using two-result operations. 3265525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 3266525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SREM && 3267525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 3268525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3269525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3270525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3271525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UREM && 3272525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 3273525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3274525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3275525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3276525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3277525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (MVT::isInteger(VT)) { 3278525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (TLI.getOperationAction(DivOpc, VT) == 327952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 328052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 32816b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 328252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 328352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 328480176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else if (MVT::isVector(VT)) { 328580176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 328652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 3287525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman assert(VT == MVT::i32 && 328852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 328956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 329056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 329152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 329256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 329352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 32940d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman } else { 32950d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman assert(MVT::isFloatingPoint(VT) && 32960d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman "remainder op must have integer or floating-point type"); 329780176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman if (MVT::isVector(VT)) { 329880176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 329980176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else { 330080176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman // Floating point mod -> fmod libcall. 3301007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::REM_F32, RTLIB::REM_F64, 3302007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::REM_F80, RTLIB::REM_PPCF128); 330380176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman SDOperand Dummy; 330480176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 330580176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman false/*sign irrelevant*/, Dummy); 330680176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } 3307c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3308c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3309c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3310525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3311c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3312acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 3313acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3314acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3315acc398c195a697795bff3245943d104eb19192b9Nate Begeman 33165c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 3317acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 3318acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3319456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3320456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3321456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3322acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3323c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3324c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 3325456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 3326456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3327456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3328456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 3329456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 3330456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 3331456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 3332456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3333456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3334acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3335acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 333669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 333769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 3338acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 3339acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 3340acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 3341acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 3342acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 334369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 3344acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 3345466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 3346456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 3347acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 3348acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3349acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3350acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3351acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 3352acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 3353acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 3354456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3355456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 3356acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3357acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3358acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 3359acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3360acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 3361acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 3362acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3363acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 3364acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3365456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3366456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3367456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3368acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3369c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 3370c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 3371456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3372456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3373456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3374456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3375acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3376acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3377acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 3378acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 337969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VD = cast<SrcValueSDNode>(Node->getOperand(3))->getValue(); 338069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VS = cast<SrcValueSDNode>(Node->getOperand(4))->getValue(); 338169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, VD, 0); 338269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, VS, 0); 3383acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3384acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3385acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3386acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3387acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 3388acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3389acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3390acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3391acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 3392acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3393456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3394456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3395456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3396acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3397c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3398456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3399456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 3400456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3401456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3402acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3403acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3404acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 3405acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3406acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3407acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3408acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3409acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 3410acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3411acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3412acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3413c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3414c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 3415acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 3416acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3417456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 3418456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3419456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3420456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3421acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3422acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3423acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3424acc398c195a697795bff3245943d104eb19192b9Nate Begeman 342535ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 342635ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 342735ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 342835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3429c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3430c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3431c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 3432c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 3433c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3434c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 3435c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3436c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 3437c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3438c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 3439c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3440c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 3441c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 3442c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3443c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 3444c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 3445c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3446c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 344735ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 344835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 3449d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3450d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3451d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3452456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3453456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 3454456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3455c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3456456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3457456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 3458456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 3459456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3460b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned DiffBits = MVT::getSizeInBits(NVT) - MVT::getSizeInBits(OVT); 3461456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3462456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3463456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3464456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3465456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 3466456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3467456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3468456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 3469456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 3470456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3471d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3472d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3473d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3474691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3475691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3476691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3477691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3478691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3479910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 3480691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 3481c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3482910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 3483335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 3484335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3485335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel if (Tmp1.Val) { 3486335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 3487335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 3488910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 3489691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3490691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 3491691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 3492691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3493edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3494edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 3495691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3496691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 3497691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 3498456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3499691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3500691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 3501691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3502691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3503691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 35047cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 3505b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 35067cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 350700b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3508910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1); 3509691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3510691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3511456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 351200b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 3513b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3514b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(OVT), NVT)); 3515691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3516691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3517691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3518691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3519691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 3520456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 3521691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3522691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3523691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 352400b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 35252c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 35262c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 35272c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 3528da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3529da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3530da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 35312c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 35322c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3533456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3534456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 353559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 353659ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 35372c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 3538c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 353959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 354059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 354159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 354259ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 35432c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35442c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 3545456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3546456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 3547456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 35482c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 35492c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 3550456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 3551f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3552f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 35534af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 35544af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 35554af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 35567cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 35574af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 35584af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 3559f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3560f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 3561f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 3562f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 3563f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 3564f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 3565826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3566826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 3567826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(VT)) { 3568826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3569826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3570826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3571826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 357256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3573f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 357456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 3575007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 3576007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 357756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 357856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 3579007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 3580007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 358156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 358256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 3583007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 3584007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 358556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 3586f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3587f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 35882ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 358956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 359056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 3591f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3592f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 35932c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 35942c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35952c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 35962c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35976ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 3598826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType VT = Node->getValueType(0); 3599826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3600826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 3601826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(VT)) { 3602826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3603826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3604826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3605826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3606826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // We always lower FPOWI into a libcall. No target support for it yet. 3607007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::POWI_F32, RTLIB::POWI_F64, 3608007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F80, RTLIB::POWI_PPCF128); 36096ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 361056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 361156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 36126ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 36136ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 361435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 361567993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 36161401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 36171401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 36187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::isVector(Op.getOperand(0).getValueType())) { 36197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 36207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 36217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 3622e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Node->getOperand(0).ResNo; 3623e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 3624e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 36257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 36267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 36277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 36287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 36297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 363007a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 36317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 36327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 36337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 36347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 36357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 36367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 36377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 36387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 36397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 36407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 36417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 36427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 364367993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 364435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 364535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 364635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 364735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 36481401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 36491401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 365035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 365135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 365235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3653c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 365435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 365535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 365635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 365735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3658d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 36592c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3660fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3661fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3662fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 3663fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3664fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3665d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 3666fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 3667fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 3668456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3669456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3670456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3671456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3672456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3673c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3674456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3675456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3676456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3677456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3678456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3679fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 36806269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 36816269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 36826269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 3683456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3684fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 3685fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 3686fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 3687fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 3688fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 36895b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 3690fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3691fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3692fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 3693fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 3694fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3695fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3696c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3697fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 3698c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 3699c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 3700fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 3701c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 3702c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 3703fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3704c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3705c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 3706fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3707fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3708fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3709fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3710fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3711fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3712fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3713fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3714c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3715fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3716fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3717fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3718fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3719fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3720fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3721fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3722fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3723fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3724fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3725fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3726fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3727fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3728fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3729d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3730fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3731fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3732fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3733fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3734f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3735f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 37361618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 37371618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3738456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3739456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3740456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3741456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3742c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3743456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3744456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3745456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3746456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3747456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3748456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3749456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3750456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3751456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 37521618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3753d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3754d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 3755d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 3756d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 3757f4d4832724eb45f94d63e6a7ab932b8f77279587Dale Johannesen unsigned ShiftAmt = MVT::getSizeInBits(NVT)-1; 375873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen const uint64_t zero[] = {0, 0}; 375973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen APFloat apf = APFloat(APInt(MVT::getSizeInBits(VT), 2, zero)); 376073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen uint64_t x = 1ULL << ShiftAmt; 3761ccf596a53e16ea221a9bf8b3874a7d6afa71f1f4Neil Booth (void)apf.convertFromZeroExtendedInteger 3762ccf596a53e16ea221a9bf8b3874a7d6afa71f1f4Neil Booth (&x, MVT::getSizeInBits(NVT), false, APFloat::rmNearestTiesToEven); 376373328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen Tmp2 = DAG.getConstantFP(apf, VT); 3764d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 3765d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3766d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3767d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 376801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3769d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3770d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3771d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 3772456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3773456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3774d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3775d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3776d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3777d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 37781618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3779fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 37806af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 37816af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 37826eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen MVT::ValueType OVT = Node->getOperand(0).getValueType(); 3783fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert ppcf128 to i32 37846eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (OVT == MVT::ppcf128 && VT == MVT::i32) { 37850bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getOpcode() == ISD::FP_TO_SINT) { 37860bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, MVT::ppcf128, 37870bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(0), DAG.getValueType(MVT::f64)); 37880bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f64, Result, 37890bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(1)); 37900bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_TO_SINT, VT, Result); 37910bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 3792fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen const uint64_t TwoE31[] = {0x41e0000000000000LL, 0}; 3793fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen APFloat apf = APFloat(APInt(128, 2, TwoE31)); 3794fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Tmp2 = DAG.getConstantFP(apf, OVT); 3795fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X 3796fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // FIXME: generated code sucks. 3797fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Result = DAG.getNode(ISD::SELECT_CC, VT, Node->getOperand(0), Tmp2, 3798fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::ADD, MVT::i32, 3799fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3800fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FSUB, OVT, 3801fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0), Tmp2)), 3802fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getConstant(0x80000000, MVT::i32)), 3803fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3804fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0)), 3805fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getCondCode(ISD::SETGE)); 3806fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen } 38076eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 38086eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 3809fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert f32 / f64 to i32 / i64. 381056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 38116af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 381273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_SINT: { 381373328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen if (OVT == MVT::f32) 381456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 381556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 381673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (OVT == MVT::f64) 381756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 381856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 3819161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::f80) { 382073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen assert(VT == MVT::i64); 3821161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_F80_I64; 3822161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 3823161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::ppcf128) { 3824161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(VT == MVT::i64); 3825161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_PPCF128_I64; 382673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 38276af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 382873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 382973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_UINT: { 383073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen if (OVT == MVT::f32) 383156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 383256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 383373328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (OVT == MVT::f64) 383456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 383556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 3836161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::f80) { 383773328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen LC = (VT == MVT::i32) 3838161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen ? RTLIB::FPTOUINT_F80_I32 : RTLIB::FPTOUINT_F80_I64; 3839161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 3840161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::ppcf128) { 3841161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(VT == MVT::i64); 3842161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_PPCF128_I64; 384373328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 38446af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 384573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 38466af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 38476af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 38486af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 384956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 385056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 38516af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 38526af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3853fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3854c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3855c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3856c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3857fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3858fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3859fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3860d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3861f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case ISD::FP_EXTEND: { 38620bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType DstVT = Op.getValueType(); 38630bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType SrcVT = Op.getOperand(0).getValueType(); 38640bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 38650bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 38660bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 38670bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), SrcVT, DstVT); 38680bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3869f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3870f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3871f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3872f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3873f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3874f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3875f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3876f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3877f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3878f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Tmp1); 3879f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3880f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3881f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 38820bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 38835411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 38840bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType DstVT = Op.getValueType(); 38850bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType SrcVT = Op.getOperand(0).getValueType(); 38860bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 38870bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (SrcVT == MVT::ppcf128) { 3888713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen SDOperand Lo; 3889713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen ExpandOp(Node->getOperand(0), Lo, Result); 38900bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Round it the rest of the way (e.g. to f32) if needed. 3891713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen if (DstVT!=MVT::f64) 3892713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen Result = DAG.getNode(ISD::FP_ROUND, DstVT, Result, Op.getOperand(1)); 38930bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 38945411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 38950bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 38960bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 38970bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), DstVT, DstVT); 38980bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3899849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3900f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3901f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3902f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3903f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 39040bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 3905f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3906f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3907f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 39080bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, Op.getValueType(), Tmp1, 39090bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 3910f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3911f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3912f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 39130bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 391413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 39153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 39163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 39173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3918456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 39193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 39203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 39210123b7dcfa9be97588926407163deb8d603487ceScott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 39220123b7dcfa9be97588926407163deb8d603487ceScott Michel TargetLowering::Custom) { 39230123b7dcfa9be97588926407163deb8d603487ceScott Michel Tmp2 = TLI.LowerOperation(Result, DAG); 39240123b7dcfa9be97588926407163deb8d603487ceScott Michel if (Tmp2.Val) { 39250123b7dcfa9be97588926407163deb8d603487ceScott Michel Tmp1 = Tmp2; 39260123b7dcfa9be97588926407163deb8d603487ceScott Michel } 39270123b7dcfa9be97588926407163deb8d603487ceScott Michel } 3928c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 39293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 393003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 393103c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 393213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3933c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3934c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 393513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 39361713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 39371713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 393813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 393923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 394023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 394103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 394203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 39431713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 394413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 39451713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 394615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 394715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 39481713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 394903c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 39503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 39513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 39520f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 395323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 39540f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 395515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 395645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 395745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 395845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 395955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 396055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 396155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3962c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 396355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 396455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 396545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 396623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 396745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 396845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 396945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 397045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 397127ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 397245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 397345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 397445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 397545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 397645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 39772d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 397845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 397945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 398045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 398145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 398245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 3983a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Result = EmitStackConvert(Node->getOperand(0), ExtraVT, 3984a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Node->getValueType(0)); 398545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 398645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 398745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 398855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 398945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 39900f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 39913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 399236397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 399336397f50343639ce9a25996f2d790c656791ab92Duncan Sands SDOperand Ops[6]; 399436397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 399536397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 399636397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 399736397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 399836397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 399936397f50343639ce9a25996f2d790c656791ab92Duncan Sands assert(Result.Val && "Should always custom lower!"); 4000f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands 4001f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Since trampoline produces two values, make sure to remember that we 4002f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // legalized both of them. 4003f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Tmp1 = LegalizeOp(Result.getValue(1)); 4004f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Result = LegalizeOp(Result); 4005f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 0), Result); 4006f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 4007f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands return Op.ResNo ? Tmp1 : Result; 400836397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 40091a0248690aaa9f7baaf1247e5f65a1c0c9e3783cDan Gohman case ISD::FLT_ROUNDS_: { 4010917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 4011917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 4012917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 4013917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Custom: 4014917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 4015917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov if (Result.Val) break; 4016917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // Fall Thru 4017917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Legal: 4018917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // If this operation is not supported, lower it to constant 1 4019917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = DAG.getConstant(1, VT); 4020917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov break; 4021917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 4022917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 402341bab0beac2600701af99f63e23a6b65f71468acChris Lattner case ISD::TRAP: { 402466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 402566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 402666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 402741bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Legal: 402841bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 402941bab0beac2600701af99f63e23a6b65f71468acChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 403041bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 403166fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov case TargetLowering::Custom: 403266fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 403366fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov if (Result.Val) break; 403466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // Fall Thru 403541bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Expand: 403666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // If this operation is not supported, lower it to 'abort()' call 403741bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 403866fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov TargetLowering::ArgListTy Args; 403966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov std::pair<SDOperand,SDOperand> CallResult = 404000fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(Tmp1, Type::VoidTy, 404100fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, false, false, CallingConv::C, false, 4042034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner DAG.getExternalSymbol("abort", TLI.getPointerTy()), 4043034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner Args, DAG); 404466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = CallResult.second; 404566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov break; 404666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 404741bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 404866fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 404945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 4050456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 40514ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 40524ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 40534ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 4054456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 4055456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 4056456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 40573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 405845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 405945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 406045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 40613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 40623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 40633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 40648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 40658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 40668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 40678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 406803c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 406903c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 407071c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 407103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 407203c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 407303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 407403c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 407503c8546ec57523970874917854a2fb77b1ff598eChris Lattner 407603c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 407703c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 407803c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 407903c8546ec57523970874917854a2fb77b1ff598eChris Lattner 408040030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 40816fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 408245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 408303c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 4084d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 4085d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 408603c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 4087e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 408839833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 4089e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 409003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 409103c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 4092fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 4093fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 4094fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 409503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 4096ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 4097ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 4098ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 4099ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 410003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 410103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 410203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 410303c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 410403c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 410503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4106ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 410782fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 4108c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 41097cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 41107cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 411182fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 4112fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 411303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 411403c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 411503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 411603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 411703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 411803c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 411903c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 412003c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 412103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4122e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 4123e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 4124e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 4125e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 4126e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 412703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 412879e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 412979e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 4130e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 413103c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 413203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 41338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 41348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 413513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 41368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 41388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 4140456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 41418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 41448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 41458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 41468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 4147595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 414815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 414913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 415023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 415123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 41528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 415535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 41561401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 41571401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 415835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 415935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 416035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 41618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 41628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 41638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 41648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 41668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 41678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41680bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getConstantOperandVal(1) == 0) { 41690bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Input is legal? Do an FP_ROUND_INREG. 41700bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 41710bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getValueType(VT)); 41720bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 41730bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Just remove the truncate, it isn't affecting the value. 41740bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, NVT, Node->getOperand(0), 41750bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 41760bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 41778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 41818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 41828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 418477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 4185456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 41868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 41888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 41908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 41918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 419215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 419315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 41948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 419523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 419623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 419777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 419877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 41998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 420177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 420277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 420377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 420477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 420515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 420615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 420777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 42088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 42098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42115e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 42125e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 42135e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 42145e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 42155e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 42168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 42178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 42188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 42198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 42200b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 4221456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 42228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 42248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 42258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 42268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 4229d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 4230d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 4231d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 4232d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 4233d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 4234d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 4235c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 4236b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 4237b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 4238d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 4239d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 4240d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4241d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 42428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42442c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 42452c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 42462c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42472c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 42482c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 42492c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 42502c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 42512c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 42522c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 42532c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 4254da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 4255da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 4256da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 4257da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4258da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 4259da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4260456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 426115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 426215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4263da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 4264da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 42658b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 42668b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 42678b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 42688b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42698b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 42708b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 42718b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 42728b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 42738b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 42748b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 42758b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 42768b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 4277ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LCS: { 4278ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 4279ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp3 = PromoteOp(Node->getOperand(3)); 4280ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Result = DAG.getAtomic(Node->getOpcode(), Node->getOperand(0), 4281ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Node->getOperand(1), Tmp2, Tmp3, 4282ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth cast<AtomicSDNode>(Node)->getVT()); 4283ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4284ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4285ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4286ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 4287ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LAS: 4288ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_SWAP: { 4289ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 4290ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Result = DAG.getAtomic(Node->getOpcode(), Node->getOperand(0), 4291ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Node->getOperand(1), Tmp2, 4292ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth cast<AtomicSDNode>(Node)->getVT()); 4293ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4294ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4295ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4296ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 4297ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 429803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 429903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 430003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 43010f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 43028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 43030f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 43040f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 430501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 43060f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 43070f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43080f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 43090f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 43100f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 431101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 431201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 431301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 431401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 431501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 431601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 431701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 431801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 431901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 432001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 432101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 432201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 43238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 43248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 432501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 432615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 432715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43280f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 43290f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 43308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 43318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 43328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 43338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 43358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 433615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 433715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 433815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 433915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 43418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 43428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 43448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 434515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 434615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 434801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 434901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 4350a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 435101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 4352ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 43530bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 43540bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp1 = LegalizeOp(Node->getOperand(0)); break; 43550bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp1 = PromoteOp(Node->getOperand(0)); break; 4356ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 4357ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 43580bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 43590bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 43600bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 4361ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 436201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 436301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 436401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 4365a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 436601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 436701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 436801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 43698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 43718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 43728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 43738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 43758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 437623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 437723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 43788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 43798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 43828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4383456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 43848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 43868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 43878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 438815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 438915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4390456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 43918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 43938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 43948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 439523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4396456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 43978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43980aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 43990aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 4400456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 4401456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 44020aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 44030aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 44040aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 44050aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 440669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 440769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 44080aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 44090aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 44100aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 44110aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 44120aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 441369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 44140aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 4415466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 44160aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 44170aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 4418456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 44190aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 44200aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 4421466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 4422466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 442362f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 442462f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 442562f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 442662f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 442755b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 4428b625f2f8960de32bc973092aaee8ac62863006feDan Gohman LD->getMemoryVT(), 4429d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 4430d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 44314c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 4432456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 44334c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 4434466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 443503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 443603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 443703c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 4438456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 443903c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 44409373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 44419373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 44429373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 44439373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 4444456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 44459373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 4446d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 4447d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 4448d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 4449d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 4450d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 4451b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 4452b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), 4453d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 4454d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4455fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4456fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4457fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4458456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 4459456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4460fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 4461fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4462456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 4463fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4464fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 4465fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4466fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4467456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 4468d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 4469b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 4470b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 447100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 4472b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), NVT), Tmp1); 4473fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4474fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4475fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 447600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 4477b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 4478b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), NVT)); 4479fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4480fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 4481fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 44827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 44837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 44846595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 44854aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 44864aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 44874aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 448803c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 448903c8546ec57523970874917854a2fb77b1ff598eChris Lattner 449003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 4491456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4492456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 4493456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 4494456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4495456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 449603c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 449703c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 449803c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 44993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 45007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 45017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 45027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 45037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 45047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 45051597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 45061597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 45071597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 45081597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 45097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Idx = Op.getOperand(1); 45101597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 4511e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman MVT::ValueType TVT = Vec.getValueType(); 45127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(TVT); 45131597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 45147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 45157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 45167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 45177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 45187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 45197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Tmp3 = TLI.LowerOperation(Op, DAG); 45207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 45217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 45227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 45257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 45267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 45277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 4528844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 45297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 45327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 45361597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 45377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 45387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 453955030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman unsigned NumLoElts = 1 << Log2_32(NumElems-1); 45407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 45411597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 45421597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 454355030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman if (CIdx->getValue() < NumLoElts) { 45441597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 45451597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 45461597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 454755030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman Idx = DAG.getConstant(CIdx->getValue() - NumLoElts, 45487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 45491597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 45507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45511597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 45521597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 45537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 45541597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 45557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 45567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 455785dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Vec.getValueType()); 45587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 45597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 45617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 45627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 45637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 456490bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 456590bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling if (MVT::getSizeInBits(Idx.getValueType()) > 456690bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling MVT::getSizeInBits(TLI.getPointerTy())) 4567f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::TRUNCATE, TLI.getPointerTy(), Idx); 456890bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling else 4569f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::ZERO_EXTEND, TLI.getPointerTy(), Idx); 457090bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 45717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 45727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 45741597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 45757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 45761597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 45771597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 45787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 45796595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 45807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDOperand Op) { 45816595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 45826595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 45836595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 45846595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 45856595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 45867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(Vec.getValueType()); 45876595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 45886595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (NumElems == MVT::getVectorNumElements(Op.getValueType())) { 45896595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 45907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 45916595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 45926595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 45936595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 45946595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 45956595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 45966595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 45976595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 45986595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 45996595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 46006595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 46016595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 46026595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 46036595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 46046595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 46057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 46064aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 46074aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 4608750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 4609750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 4610750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 4611750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 4612750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 4613750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 4614750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 4615750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 4616750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 4617638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen SDOperand Tmp1, Tmp2, Tmp3, Result; 4618750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4619750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 4620750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 4621750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 4622750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 4623750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4624750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 4625750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 4626750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 4627750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4628750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 4629750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 4630750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 4631750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 4632750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4633750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 4634750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 4635750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 4636750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 4637750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4638750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 4639750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4640750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4641750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 4642750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 4643750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 4644750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 4645750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 4646750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 4647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 4648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 4650750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4651750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4652750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4653750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4654750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4655750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 4656750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4657750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 4658750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4659750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4660750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4661750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4662750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 46632b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 46642b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 46652b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 46662b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 466756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 46682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 46692b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 46702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 467156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 46722b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46732b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 46742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 467556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 46762b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 46782b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 467956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 46802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 46822b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 468356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 46842b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46852b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 46862b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 468756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 46882b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46892b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 46902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 469156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 46922b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46932b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 4694d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 4695d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 46962b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 46975efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 46982b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46992b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 470056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 47012b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 47022b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 47032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 470456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 47052b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 47062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 470756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 47082b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 471056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 47112b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 471356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 47142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47152b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 471656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 47172b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 471856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 471956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 472056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 47212b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 47222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47242b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 47252b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 472656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Tmp1 = ExpandLibCall(TLI.getLibcallName(LC1), 472747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4728b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 47292b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4730d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 473156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 47322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), Tmp1, Tmp2, CC); 473356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LHS = ExpandLibCall(TLI.getLibcallName(LC2), 473447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4735b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 47362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHS, Tmp2, 4737d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 47382b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 47392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 47402b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47412b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 47422b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 47432b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 47442b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47452b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4746750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 4747750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 4748638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ExpandOp(RHS, RHSLo, RHSHi); 4749638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 4750638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4751638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (VT==MVT::ppcf128) { 4752638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FIXME: This generated code sucks. We want to generate 4753638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, hi1, hi2 4754638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // BNE crN, L: 4755638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, lo1, lo2 4756638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // The following can be improved, but not that much. 4757638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 4758638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, CCCode); 4759638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp3 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4760638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETNE); 4761638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, CCCode); 4762638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4763638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp3); 4764638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = SDOperand(); 4765638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 4766638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } 4767638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4768638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen switch (CCCode) { 4769750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4770750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4771750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4772750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4773750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4774750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4775750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4776750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4777750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4778750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4779750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4780750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4781750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4782750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4783750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4784750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4785750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4786750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4787750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4788750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4789750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4790750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 4791750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4792750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4793750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4794750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4795750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4796750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4797750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4798750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4799750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 48002e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4801750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4802750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4803750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4804750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4805750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4806750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4807750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4808750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4809750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4810750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4811750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4812750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4813750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4814750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4815750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4816750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4817750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 48182e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 48192e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC, 48202e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng false, DagCombineInfo); 48212e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 48222e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 48232e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 48242e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 48252e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 482685dd3be7354f848231362bd70f6517c0e667f95dChris Lattner Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi,CC); 48272e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 48282e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 48292e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 48302e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if ((Tmp1C && Tmp1C->getValue() == 0) || 48312e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 0 && 48322e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 48332e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 48342e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 1 && 48352e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 48362e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 48372e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 48382e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 48392e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 48402e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 48412e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 48422e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 48432e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 48442e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 48452e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 48462e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result=DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 48472e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 48482e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 48492e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 48502e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 48512e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4852750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4853750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 48542b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4855750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4856750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4857750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4858750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 48591401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// EmitStackConvert - Emit a store/load combination to the stack. This stores 48601401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// SrcOp to a stack slot of type SlotVT, truncating it if needed. It then does 48611401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// a load from the stack slot to DestVT, extending it if needed. 48621401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// The resultant code need not be legal. 48631401d15c99b284ead81b8476a6db95328c5f28fdChris LattnerSDOperand SelectionDAGLegalize::EmitStackConvert(SDOperand SrcOp, 48641401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner MVT::ValueType SlotVT, 48651401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner MVT::ValueType DestVT) { 486635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 48671401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(SlotVT); 48681401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 4869bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(FIPtr); 487069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 487169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 48721401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner unsigned SrcSize = MVT::getSizeInBits(SrcOp.getValueType()); 48731401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner unsigned SlotSize = MVT::getSizeInBits(SlotVT); 48741401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner unsigned DestSize = MVT::getSizeInBits(DestVT); 48751401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 48761401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // Emit a store to the stack slot. Use a truncstore if the input value is 48771401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // later than DestVT. 48781401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand Store; 48791401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SrcSize > SlotSize) 488069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getTruncStore(DAG.getEntryNode(), SrcOp, FIPtr, 48813069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 488269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SPFI, SlotVT); 48831401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner else { 48841401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SrcSize == SlotSize && "Invalid store"); 488569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, 48863069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 488769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SPFI, SlotVT); 48881401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner } 488935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 489035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 48911401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SlotSize == DestSize) 48921401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 48931401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 48941401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SlotSize < DestSize && "Unknown extension!"); 48951401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner return DAG.getExtLoad(ISD::EXTLOAD, DestVT, Store, FIPtr, NULL, 0, SlotVT); 489635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 489735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 48984352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 48994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 49004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 490185dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Node->getValueType(0)); 490269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4903bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr); 490469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 490569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4906786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 49073069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 490869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, 49093069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 49104352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 49114352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 49124352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4913ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 491407a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4915ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4916ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4917ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 491887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4919033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4920ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 492187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 4922033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 4923033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 49242eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 49252eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 49262eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 49272eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 49282eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4929033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4930033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 493189a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4932033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4933ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4934033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 493587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 49362eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49372eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 49382eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 49392eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 49402eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 49412eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4942ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4943ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4944ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4945ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4946ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4947ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4948ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4949ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4950ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4951ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4952ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 49532eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4954ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 4955ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4956ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 4957ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 4958ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4959033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4960ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4961ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 4962f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CV.push_back(ConstantFP::get(OpNTy, V->getValueAPF())); 4963ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 4964ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 4965b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 4966ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4967ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 4968ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4969ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4970ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 49719d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 4972ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 497369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 49743069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 4975ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 49762eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49772eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 49782eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 49792eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 49802eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 498151eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman SDOperand Zero = DAG.getConstant(0, MVT::getVectorElementType(MaskVT)); 49822eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 4983bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4984bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 4985033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 49862eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 49874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 49882eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 49892eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 49902eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 49912eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49922eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 49932eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 49942eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 49952eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 49962eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 49972eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 49982eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4999033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 5000033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 5001033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 5002033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 5003033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 5004033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 5005033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 5006033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 5007033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 5008033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 5009033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 5010033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 501151eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MaskVec[*II] = DAG.getConstant(i, MVT::getVectorElementType(MaskVT)); 5012033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 5013033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5014bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 5015bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 5016033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 5017033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 50184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 50194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 5020bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 5021033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 5022033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 5023033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 5024033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 5025033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 5026033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5027033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 5028033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 5029033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 5030bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 5031bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 5032033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5033033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5034ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5035ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 5036ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 5037ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 5038ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 5039ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 504085dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(VT); 5041ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5042ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 5043bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 5044ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 5045ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 5046ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 5047ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 5048ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 5049ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 5050ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5051841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 5052ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5053ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 5054ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 5055ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5056786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 50578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 5058ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 5059ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5060ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 5061ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 5062bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 5063bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 5064ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 5065ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 5066ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5067ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 5068466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 5069ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 5070ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 50715b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 50725b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 50735b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 50745b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 50755b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 50765b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 50775b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5078bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 5079f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 5080f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 50815b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 50825b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 50835b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 50845b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5085e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 5086e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 5087e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 5088e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 5089e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 5090e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 5091e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 5092e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 5093f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 5094e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 5095f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 5096f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 509791dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman unsigned ShBits = MVT::getSizeInBits(ShTy); 5098f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 5099f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 5100f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 51017a3c85583d523edb90aa957a02385254957c6e37Chris Lattner // Handle the case when Amt is an immediate. 5102f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 5103f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 5104f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 5105f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 5106f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 5107f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 5108f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 5109f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5110f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5111f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5112f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5113f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5114f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 5115ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5116ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 5117ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 5118f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5119f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 5120f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 5121f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 5122f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 5123f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5124f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5125f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 5126f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5127f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5128f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5129f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5130f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 5131f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5132ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5133ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5134ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 5135f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5136f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5137f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5138f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5139f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 5140f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5141f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5142f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 5143f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5144edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 5145f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5146f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5147edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 5148f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 5149edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5150f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5151ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5152ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5153edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5154ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 5155f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5156f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5157f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5158f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5159f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 5160f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5161f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5162f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5163f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 51640ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51650ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 51660ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 516791dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt Mask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 516891dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt KnownZero, KnownOne; 5169ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 51700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51719e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that if any of the high bits of the shift amount are one, then 51729e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // we can do this as a couple of simple shifts. 517391dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman if (KnownOne.intersects(Mask)) { 51740ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 51750ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 517691dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman DAG.getConstant(~Mask, Amt.getValueType())); 51770ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51780ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 51790ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 51800ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 51810ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 51820ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 51830ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 51840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 51850ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51860ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 51870ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 51880ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 51890ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51900ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 51910ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 51920ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 51930ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 51940ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51950ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 51960ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 51970ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51989e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that the high bits of the shift amount are all zero, then we can 51999e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // do this as a couple of simple shifts. 52009e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman if ((KnownZero & Mask) == Mask) { 52010ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 52020ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 52030ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 52040ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 52050ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52060ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 52070ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 52080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 52090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 52100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 52110ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 52120ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 52130ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 52140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 52150ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52160ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 52170ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 52180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 52190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 52200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 52210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 52230ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 52240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 52250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 52260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 52270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 5231f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 5232e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 523377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 52349c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 523577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 523677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 523777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 523877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 523977e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 524047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 52416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 52426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 52436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 52446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 52456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 52466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 524777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 524847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 524977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 525077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 525177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 525247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 5253d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 525400fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands Entry.isZExt = !isSigned; 525547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 525677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 525777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 5258edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 52590d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 526077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 52610d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 526200fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, CallingConv::C, 526300fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, Callee, Args, DAG); 52640d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 52656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 52666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 52676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 52686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 526999c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 52700d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 527177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 527277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 5273456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 527499c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 527577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 527699c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 527799c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 527877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 527922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 528022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 528122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 528222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 52834c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 52844c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 528522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 528622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 528722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 528822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 528922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 529022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 529122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 529222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 529322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 529422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 529522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 529622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 529722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 529822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 529922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 530022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 530122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 530222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 530322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 530422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 530522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 530622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 530722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 53080bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner SDOperand Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 530922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 531022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 531122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 531222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 531347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 531422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 531522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 531622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 531722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 531822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 531969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 53203069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 5321118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen else if (MVT::getSizeInBits(DestTy) > MVT::getSizeInBits(MVT::f32)) 53224c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 5323118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, DestTy, DAG.getEntryNode(), 532469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman CPIdx, 53253069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 532669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MVT::f32); 53279e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else 53289e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Unexpected conversion"); 53299e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen 53304c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng MVT::ValueType SCVT = SignedConv.getValueType(); 53314c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 53324c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 53334c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 53344c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (MVT::getSizeInBits(SCVT) != MVT::getSizeInBits(DestTy)) { 53354c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(SCVT == MVT::i32 && DestTy == MVT::f64); 53364c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BUILD_PAIR, MVT::i64, 53374c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 53384c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 53394c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 53404c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 534122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 534222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 534322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 534422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 534522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 534622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 534722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 534822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 534922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 535022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 535122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 535222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 535322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 535422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 535522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 535622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 535722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 535822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 535922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 536022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 536122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 536222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 536322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 536422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 536556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 536622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 536756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F32; 536822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 536922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 537056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F64; 537122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 53726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 53734c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 53746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 53756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 537656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng return ExpandLibCall(TLI.getLibcallName(LC), Source.Val, isSigned, 537756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng UnusedHiPart); 537822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 537922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 538022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 538122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 538222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 538322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 538422cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 538522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 538622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 538722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 538822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 538922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 539023594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner // Get the stack frame index of a 8 byte buffer. 539123594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner SDOperand StackSlot = DAG.CreateStackTemporary(MVT::f64); 539223594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner 539322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 539422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 539522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 5396408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 5397408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 5398408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 5399408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 5400408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 540122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 540222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 540322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 540422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 540522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 540622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 540722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 540822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 540922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 541022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 5411786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 54128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 541322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 541422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 541522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 54168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 541722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 5418466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 541922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 542022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 542122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 542222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 542322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 542422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 542522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 542622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 542722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 542822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 542922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 543022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 543122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 5432118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) < MVT::getSizeInBits(MVT::f64)) { 54330bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, DestVT, Sub, 54340bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 5435118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) > MVT::getSizeInBits(MVT::f64)) { 5436118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, DestVT, Sub); 543722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 543822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 543922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 544022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 544122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 544222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 544322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 544422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 544522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 54460bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner SDOperand Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 544722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 544822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 544922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 545022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 545122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 545222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 545322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 545422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 545522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 545622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 545722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 545822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 545922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 546022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 546122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 546247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 546322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 546422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 546522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 546622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 546722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 546869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 54693069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 547022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 547169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = 547269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, DestVT, 547369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman DAG.getEntryNode(), CPIdx, 54743069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 547569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MVT::f32)); 547622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 547722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 547822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 547922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 548022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 548122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 548222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 548322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 548422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 548522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 548622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 548722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 548822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 548922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 549022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 549122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 549222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 549322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 549422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 549522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 549622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 549722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 549822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 549922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 550022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 550122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 550222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 550322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 550422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 550522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 550622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 550722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 550822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 550922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 551022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 551122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 551222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 551322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 551422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 551522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 551622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 551722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 551822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 551922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 552022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 552122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 552222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 552322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 552422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 552522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 552622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 552722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 552822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 552922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 553022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 553122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 553222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 553322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 553477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 553577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 553622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 553722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 553822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 553922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 554022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 554122cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 554222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 554322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 554422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 554522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 55469c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 554722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 5548e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 554922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 555022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 555122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 555222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 555366de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 555422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 555522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 555622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 555722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 555822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 555922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 556022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 556122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 556222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 556322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 556422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 556522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 5566e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 556722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 556822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 556922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 557022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 557122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 557222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 557322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 557422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 557522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 557622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 5577e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 557822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 55790d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 558022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 5581a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 5582a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 558327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 558427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Okay, we found the operation and type to use. 558527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Operation = DAG.getNode(OpToUse, NewOutTy, LegalOp); 558627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 558727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // If the operation produces an invalid type, it must be custom lowered. Use 558827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // the target lowering hooks to expand it. Just keep the low part of the 558927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // expanded operation, we know that we're truncating anyway. 559027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner if (getTypeAction(NewOutTy) == Expand) { 559127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Operation = SDOperand(TLI.ExpandOperationResult(Operation.Val, DAG), 0); 559227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Operation.Val && "Didn't return anything"); 559327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 559427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 559527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Truncate the result of the extended FP_TO_*INT operation to the desired 559627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // size. 559727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, Operation); 559822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 559913689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 560022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 560122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 560222cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 560322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 560422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 560522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 560622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 560722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 560822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 560922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 561022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 561122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 561222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 561322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 561422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 561522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 561622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 561722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 561822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 561922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 562022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 562122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 562222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 562322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 562422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 562522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 562622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 562722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 562822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 562922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 563022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 563122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 563222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 563322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 563422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 563522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 563622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 563722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 563822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 563922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 564022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 564122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 564222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 564322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 56440d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 564577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 5646edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 564722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 564822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 564922cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 565022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 565122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 565222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 565322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 565422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 565522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 565622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 565722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 565822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 565922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 5660b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 566122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 566222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 566322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 566422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 566522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 566622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 566722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 566822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 566922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 567022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 567122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 567222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 567322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 567422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 567522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 567622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 567722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 567822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 567922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 568022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 568122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 568222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 5683b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 568422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 568522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 568622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 568722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 568822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 568922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 569022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 569122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 569222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 569322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 569422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 569522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 569622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 569722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 569822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 569922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 570022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 570122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 570222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 570322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 570422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 5705b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), VT), 570622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 570722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 570822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 570922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 571022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 5711e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 57123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 57133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 57143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 57153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 57163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 57173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 57183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 571971c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 57203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 57213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 57221a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 57237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::isVector(VT)) && 57243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 57253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57266fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 572740030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 57286fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 57296fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 57306fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 57316fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 57326fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 57333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 57343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 5736348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 5737348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 57386eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen case ISD::FP_ROUND_INREG: 57396eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (VT == MVT::ppcf128 && 57406eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TLI.getOperationAction(ISD::FP_ROUND_INREG, VT) == 57416eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TargetLowering::Custom) { 5742fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand SrcLo, SrcHi, Src; 5743fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen ExpandOp(Op.getOperand(0), SrcLo, SrcHi); 5744fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Src = DAG.getNode(ISD::BUILD_PAIR, VT, SrcLo, SrcHi); 5745fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand Result = TLI.LowerOperation( 5746fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_ROUND_INREG, VT, Src, Op.getOperand(1)), DAG); 57476eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen assert(Result.Val->getOpcode() == ISD::BUILD_PAIR); 57486eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Lo = Result.Val->getOperand(0); 57496eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Hi = Result.Val->getOperand(1); 57506eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 57516eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 57526eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen // fall through 5753348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 5754e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 575539833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 5756e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 57573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 57583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 57591953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman case ISD::EXTRACT_ELEMENT: 57601953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman ExpandOp(Node->getOperand(0), Lo, Hi); 57611953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 57621953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman return ExpandOp(Hi, Lo, Hi); 576318714aeaed2a74bfc85dc5abe24a9193882406c5Dan Gohman return ExpandOp(Lo, Lo, Hi); 576425f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen case ISD::EXTRACT_VECTOR_ELT: 576525f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen assert(VT==MVT::i64 && "Do not know how to expand this operator!"); 576625f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen // ExpandEXTRACT_VECTOR_ELT tolerates invalid result types. 576725f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen Lo = ExpandEXTRACT_VECTOR_ELT(Op); 576825f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen return ExpandOp(Lo, Lo, Hi); 5769fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 5770aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 5771fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 5772fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 5773fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 57743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 57753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 57763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 57773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 57783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 57793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5780004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5781004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5782a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen if (CFP->getValueType(0) == MVT::ppcf128) { 5783a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen APInt api = CFP->getValueAPF().convertToAPInt(); 5784a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[1])), 5785a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5786a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Hi = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[0])), 5787a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5788a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen break; 5789a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen } 5790279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 57919f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 57929f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5793004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5794004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5795d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 57968137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 57978137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 57988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5799d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 580027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 580127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::MERGE_VALUES: 5802c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner if (Node->getNumValues() == 1) { 5803c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 5804c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner break; 5805c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner } 580627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // FIXME: For now only expand i64,chain = MERGE_VALUES (x, y) 580727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Op.ResNo == 0 && Node->getNumValues() == 2 && 580827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Op.getValue(1).getValueType() == MVT::Other && 580927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner "unhandled MERGE_VALUES"); 581027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 581127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Remember that we legalized the chain. 581227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Op.getOperand(1))); 581327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner break; 581458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 581558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 581658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 58174bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 58184bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 58194bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 58204bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 58214bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 582258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 582358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 582458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 582558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5826d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5827d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5828d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5829d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5830d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5831d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5832d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5833d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5834d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5835edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5836edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 58379b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 58389b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 58399b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5840edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5841edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5842edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 584339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 584439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 58453becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 584639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 584739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 58487cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 58497cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 585039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 585139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 585239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 585339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 585439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 585539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 585639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 585739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 585839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 585939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 58603becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 586139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 586239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 58637cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 58647cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 586539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 586639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 586739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 586839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 586939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 587039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 587139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 5872edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 5873acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 58748137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 58758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5876acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 5877acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 5878acc398c195a697795bff3245943d104eb19192b9Nate Begeman 5879acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 58808137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 5881acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 58820753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 5883acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 5884acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 5885acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 5886acc398c195a697795bff3245943d104eb19192b9Nate Begeman 58873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 5888466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 5889466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 5890466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 5891466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 5892d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 5893d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 5894d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 5895466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5896466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 5897d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5898d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5899004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 5900004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 5901004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 5902004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 59039f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 59049f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 59059f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5906004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5907004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5908466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5909466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 5910466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 5911466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 59120bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 59137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 5914dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 5915d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5916d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5917466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5918466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 5919466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 5920466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5921466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 5922466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5923466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5924466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 59250753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 5926466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 5927466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 5928b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType EVT = LD->getMemoryVT(); 5929548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 5930b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen if ((VT == MVT::f64 && EVT == MVT::f32) || 5931b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen (VT == MVT::ppcf128 && (EVT==MVT::f64 || EVT==MVT::f32))) { 5932548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 5933548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 5934d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5935548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 5936548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 5937548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 5938548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 5939548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 5940466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5941466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 5942466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 5943d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5944466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 5945466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 5946d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 5947d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 5948466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5949466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5950466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 5951466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5952466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 5953466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 5954466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 5955466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 5956466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 5957466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 5958466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 5959466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 5960466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 5961466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 5962466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 5963466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 5964466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 5965466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 59663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 59683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 59693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 59703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 59713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 59723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 59733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 59743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 59753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 59763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 59783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 5979456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 59803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 59813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 598219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 598319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 5984456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 598519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 598619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 59873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 59899373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 59909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 59919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 59929373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 599319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 599419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 59959373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 59969373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 599719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 599819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 599919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 60009373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 60019373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 60028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 600313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 60048137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 600513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 600613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 600713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 60083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 60093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 60103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 60118137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 6012edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 60133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 60143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 60152dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 60168137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 60178137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 60183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 60208137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 60213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 60223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 60238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 6024edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 60253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 60263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 60273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 602835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 60294c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 60304c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 60314c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 60324c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 60334c948eb373779718e5be36d7674382b52114bf65Chris Lattner 60344c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 60354c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 60364c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 60374c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 60384c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 60394c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 60404c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 60414c948eb373779718e5be36d7674382b52114bf65Chris Lattner 604235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 6043f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 6044f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 6045f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 6046f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6047f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 6048f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 6049f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 6050f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6051f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 6052f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6053f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 60541a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 605513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 605613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 605719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 605819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 60597b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 60607b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 60617b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 60627b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 60637b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 60647b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 60657b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 60667b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 60671a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 60681a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 60691a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 6070f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 6071f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 60721401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Tmp = EmitStackConvert(Node->getOperand(0), VT, VT); 6073f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 607435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 607535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 607635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 6077f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 607827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::READCYCLECOUNTER: { 6079308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 6080308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 6081308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 608227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Tmp = TLI.LowerOperation(Op, DAG); 608327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Tmp.Val && "Node must be custom expanded!"); 608427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Tmp.getValue(0), Lo, Hi); 6085308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 608627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner LegalizeOp(Tmp.getValue(1))); 6087f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 608827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 6089f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 60904e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 60914e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 609256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 609380a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 6094f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 6095f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6096f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 60978137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 60988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 6099f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 6100d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6101f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 6102f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 610380a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 610480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 610507dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 610607dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 610707dffd6af673c73352150583150b242a93694f00Chris Lattner break; 610807dffd6af673c73352150583150b242a93694f00Chris Lattner } 610980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6110d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6111161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 61124e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 611356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F32_I64; 611473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f64) 611556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F64_I64; 6116161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f80) 6117161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_F80_I64; 6118161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6119161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_PPCF128_I64; 612056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 612156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 61224e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 612356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 6124d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 612556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 612680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 61278137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 61288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 61298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 61308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 61318137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 61328137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 61338137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 61348137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 61358137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 61368137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 613707dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 613807dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 613907dffd6af673c73352150583150b242a93694f00Chris Lattner break; 614007dffd6af673c73352150583150b242a93694f00Chris Lattner } 614180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6142d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6143daccea18ca8357b4193ac3ba42a168e650b807e0Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 61444e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 614556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F32_I64; 614672292f07122de9c8bd41b85e94cb2d3235eca0c9Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f64) 614756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F64_I64; 6148161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f80) 6149161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_F80_I64; 6150161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6151161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_PPCF128_I64; 615256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 615356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 61544e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 615556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 61564e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 615705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 615850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6159348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 616050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 61618137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 616250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 616350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 616450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 616550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 616650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 616750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 616850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 616950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 617050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 617179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 617279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 617379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 617479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 617579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 617679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 617779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 617879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 617979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 618079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 618179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 618279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 618379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 618479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 618579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 618679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 618779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 618879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 6189e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6190348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6191e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 61924759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 61934759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 619405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 619505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 619605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 619705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6198348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 61994759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 62004759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 62014759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6202e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 620356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SHL_I64), Node, 620456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*left shift=unsigned*/, Hi); 6205e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 620605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6207e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 620805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 620950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6210348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 621150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 62128137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 621350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 621450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 621550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 621650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 621750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 621850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 621950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 622050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 622150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6222e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6223348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6224e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 62254759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 62264759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 622705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 622805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 622905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 623005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6231348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 62324759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 62334759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 62344759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6235e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 623656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRA_I64), Node, 623756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng true/*ashr is signed*/, Hi); 6238e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 623905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 624005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 624105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 624250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6243348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 624450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 62458137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 624650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 624750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 624850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 624950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 625050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 625150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 625250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 625350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 625450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6255e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6256348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6257e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 62584759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 62594759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 626005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 626105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 626205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 626305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6264348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 62654759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 62664759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 62674759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6268e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 626956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRL_I64), Node, 627056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*lshr is unsigned*/, Hi); 6271e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 627205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6273e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 6274edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 62758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 62768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 62778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 62788137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 62798137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 62808137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 62818137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 62828137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 62838137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 62848137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 62858137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 62868137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 62878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 62888137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 62898137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 629079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 629179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 6292bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 6293bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 6294bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 6295bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 6296551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 629779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6298bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 629979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6300551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 630179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6302bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 630379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6304551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 630584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 63068137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 6307b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6308b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 6309b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 6310b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6311b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 6312b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6313b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6314b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6315b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 6316b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 6317b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6318b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 6319b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6320b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6321b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6322b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 6323b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6324b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6325b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6326b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6327b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6328b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6329b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6330b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6331b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 6332b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 6333b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6334b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 6335b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6336b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6337b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6338b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 6339b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 6340b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6341b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 6342b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6343b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 6344b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6345b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6346b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6347b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6348b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6349c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 63507d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 63517d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 63528829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 63538829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 63548829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 63557d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 63567d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 63577d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 63587d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 63593f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 63603f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 6361525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, NVT); 6362525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, NVT); 6363525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 6364c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 6365c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 6366c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 63672e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned OuterBitSize = Op.getValueSizeInBits(); 63682e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned InnerBitSize = RH.getValueSizeInBits(); 6369525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned LHSSB = DAG.ComputeNumSignBits(Op.getOperand(0)); 6370525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned RHSSB = DAG.ComputeNumSignBits(Op.getOperand(1)); 63712e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman if (DAG.MaskedValueIsZero(Op.getOperand(0), 63722e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(OuterBitSize, LHSSB)) && 63732e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman DAG.MaskedValueIsZero(Op.getOperand(1), 63742e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(OuterBitSize, RHSSB))) { 6375525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The inputs are both zero-extended. 6376525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6377525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a umul_lohi. 6378525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::UMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6379525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 6380525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6381525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6382525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU) { 6383525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhu+mul. 6384525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6385525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 6386525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6387525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6388525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 63892e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 6390525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The input values are both sign-extended. 6391525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI) { 6392525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a smul_lohi. 6393525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::SMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6394525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 6395525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6396525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6397525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHS) { 6398525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhs+mul. 6399525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6400525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 6401525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6402525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6403525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6404525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6405525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // Lo,Hi = umul LHS, RHS. 6406525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDOperand UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, 6407525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.getVTList(NVT, NVT), LL, RL); 6408525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = UMulLOHI; 6409525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = UMulLOHI.getValue(1); 641056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 641156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 641256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 641356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 6414a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 641556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 64168eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen if (HasMULHU) { 64178eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 64188eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 64198eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 64208eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 64218eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 64228eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 64238eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen break; 64248eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen } 6425c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 64263f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 6427525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // If nothing else, we can make a libcall. 642856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::MUL_I64), Node, 642956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 6430c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 6431c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 643256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 643356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SDIV_I64), Node, true, Hi); 643456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 643556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 643656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UDIV_I64), Node, true, Hi); 643756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 643856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 643956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SREM_I64), Node, true, Hi); 644056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 644156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 644256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UREM_I64), Node, true, Hi); 644356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 64445c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 64451a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 6446007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::ADD_F32, 6447007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::ADD_F64, 6448007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::ADD_F80, 6449007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::ADD_PPCF128)), 645056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64511a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64521a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 6453007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::SUB_F32, 6454007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SUB_F64, 6455007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SUB_F80, 6456007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SUB_PPCF128)), 645756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64581a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64591a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 6460007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::MUL_F32, 6461007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::MUL_F64, 6462007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::MUL_F80, 6463007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::MUL_PPCF128)), 646456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64651a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64661a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 6467007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::DIV_F32, 6468007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::DIV_F64, 6469007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::DIV_F80, 6470007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::DIV_PPCF128)), 647156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64721a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64731a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 6474ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (VT == MVT::ppcf128) { 6475ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen assert(Node->getOperand(0).getValueType()==MVT::f32 || 6476ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0).getValueType()==MVT::f64); 6477ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen const uint64_t zero = 0; 6478ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (Node->getOperand(0).getValueType()==MVT::f32) 6479ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::FP_EXTEND, MVT::f64, Node->getOperand(0)); 6480ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen else 6481ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = Node->getOperand(0); 6482ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6483ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6484ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 648556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi); 64861a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64871a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 648856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPROUND_F64_F32),Node,true,Hi); 64891a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6490c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio case ISD::FPOWI: 6491007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::POWI_F32, 6492007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F64, 6493007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F80, 6494007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_PPCF128)), 6495c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Node, false, Hi); 6496c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio break; 649798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 649898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 649998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 650056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 650198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 650256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 6503007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 6504007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 650556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 650656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 6507007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 6508007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 650956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 651056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 6511007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 6512007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 651356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 651498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 651598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 651656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, false, Hi); 651798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 651898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6519966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 6520f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6521f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen SDOperand Tmp; 6522f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Tmp); 6523f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FABS, NVT, Tmp); 6524f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen // lo = hi==fabs(hi) ? lo : -lo; 6525f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::SELECT_CC, NVT, Hi, Tmp, 6526f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo, DAG.getNode(ISD::FNEG, NVT, Lo), 6527f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen DAG.getCondCode(ISD::SETEQ)); 6528f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6529f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6530966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6531966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 6532966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 6533966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6534966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6535966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 6536966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6537966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6538966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6539966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6540966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 6541f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6542f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Hi); 6543f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::FNEG, MVT::f64, Lo); 6544f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FNEG, MVT::f64, Hi); 6545f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6546f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6547966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6548966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 6549966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 6550966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6551966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6552966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 6553966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6554966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6555966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6556966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6557912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 6558912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 6559912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 6560912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 6561912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 6562912095becac923ff614d7b07728eb345ada67765Evan Cheng } 65637df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 65647df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 65657df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 65667df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng MVT::ValueType SrcVT = Node->getOperand(0).getValueType(); 65676e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT != MVT::i64) { 6568f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t zero = 0; 6569ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (isSigned) { 6570ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6571ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6572ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6573ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } else { 6574f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 }; 6575ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6576ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6577ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6578ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 65796e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // X>=0 ? {(f64)x, 0} : {(f64)x, 0} + 2^32 6580ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 6581ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstant(0, MVT::i32), 6582ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 6583ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstantFP( 6584ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen APFloat(APInt(128, 2, TwoE32)), 6585ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen MVT::ppcf128)), 6586ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi, 6587ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getCondCode(ISD::SETLT)), 6588ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo, Hi); 6589ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6590ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6591ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 65926e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT == MVT::i64 && !isSigned) { 65936e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // si64->ppcf128 done by libcall, below 6594f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 }; 65956e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SINT_TO_FP, MVT::ppcf128, Node->getOperand(0)), 65966e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 65976e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 65986e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // x>=0 ? (ppcf128)(i64)x : (ppcf128)(i64)x + 2^64 65996e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 66006e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstant(0, MVT::i64), 66016e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 66026e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstantFP( 66036e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen APFloat(APInt(128, 2, TwoE64)), 66046e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen MVT::ppcf128)), 66056e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi, 66066e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getCondCode(ISD::SETLT)), 66076e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 66086e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen break; 66096e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen } 661064f638df568f2849b485cc50836efc734e367fc7Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 66117df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) { 66127df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 661356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F32 : RTLIB::UINTTOFP_I64_F32; 661473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (VT == MVT::f64) 661556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F64 : RTLIB::UINTTOFP_I64_F64; 6616161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (VT == MVT::f80) { 6617161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(isSigned); 6618161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::SINTTOFP_I64_F80; 6619161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 6620161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (VT == MVT::ppcf128) { 662173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen assert(isSigned); 6622161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::SINTTOFP_I64_PPCF128; 662373328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 66247df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } else { 66257df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 662656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 66277df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 662856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 66297df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 66307df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 66317df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng // Promote the operand if needed. 66327df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (getTypeAction(SrcVT) == Promote) { 66337df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng SDOperand Tmp = PromoteOp(Node->getOperand(0)); 66347df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Tmp = isSigned 66357df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 66367df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng DAG.getValueType(SrcVT)) 66377df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng : DAG.getZeroExtendInReg(Tmp, SrcVT); 66387df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 66397df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 66404c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng 66414c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng const char *LibCall = TLI.getLibcallName(LC); 66424c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (LibCall) 66434c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Hi); 66444c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng else { 66454c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 66464c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Node->getOperand(0)); 66474c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 66484c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng ExpandOp(Lo, Lo, Hi); 66494c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 66507df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 66517df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 665298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 66533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 665483397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 665583397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 665683397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 665783397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 665813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 665913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 666013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 666183397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 666205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 666305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 666440030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 666505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 66663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 66673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 66687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 66697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 6670c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 6671c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 66727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && "Cannot split non-vector type!"); 6673c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 6674e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman unsigned NumElements = MVT::getVectorNumElements(Op.getValueType()); 6675c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 66765db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6677e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman MVT::ValueType NewEltVT = MVT::getVectorElementType(Op.getValueType()); 66785db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 66795db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Lo = 1 << Log2_32(NumElements-1); 66805db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Hi = NumElements - NewNumElts_Lo; 66815db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 66825db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::ValueType NewVT_Lo = MVT::getVectorType(NewEltVT, NewNumElts_Lo); 66835db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::ValueType NewVT_Hi = MVT::getVectorType(NewEltVT, NewNumElts_Hi); 66845db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6685c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 6686c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 6687c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 6688c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 6689c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 6690c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 6691c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 6692c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6693c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6694c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 6695e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 6696e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 669739833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 6698e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6699e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 6700daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner case ISD::UNDEF: 6701daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Lo = DAG.getNode(ISD::UNDEF, NewVT_Lo); 6702daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Hi = DAG.getNode(ISD::UNDEF, NewVT_Hi); 6703daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner break; 67047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 67057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 67067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 67077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 67089fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman case ISD::INSERT_VECTOR_ELT: { 67099fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman SplitVectorOp(Node->getOperand(0), Lo, Hi); 67109fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman unsigned Index = cast<ConstantSDNode>(Node->getOperand(2))->getValue(); 67119fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman SDOperand ScalarOp = Node->getOperand(1); 67125db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman if (Index < NewNumElts_Lo) 67135db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Lo, Lo, ScalarOp, 67149fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman DAG.getConstant(Index, TLI.getPointerTy())); 67159fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman else 67165db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Hi, Hi, ScalarOp, 67175db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman DAG.getConstant(Index - NewNumElts_Lo, 67185db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman TLI.getPointerTy())); 67199fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman break; 67209fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman } 67216c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner case ISD::VECTOR_SHUFFLE: { 67226c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Build the low part. 67236c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand Mask = Node->getOperand(2); 67246c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SmallVector<SDOperand, 8> Ops; 67256c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 67266c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 67276c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Insert all of the elements from the input that are needed. We use 67286c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // buildvector of extractelement here because the input vectors will have 67296c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // to be legalized, so this makes the code simpler. 67306c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = 0; i != NewNumElts_Lo; ++i) { 67316c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner unsigned Idx = cast<ConstantSDNode>(Mask.getOperand(i))->getValue(); 67326c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 67336c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 67346c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 67356c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 67366c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67376c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 67386c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 67396c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67406c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 67416c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.clear(); 67426c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 67436c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = NewNumElts_Lo; i != NumElements; ++i) { 67446c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner unsigned Idx = cast<ConstantSDNode>(Mask.getOperand(i))->getValue(); 67456c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 67466c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 67476c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 67486c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 67496c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67506c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 67516c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 67526c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67536c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 67546c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner break; 67556c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 6757bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 67585db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Node->op_begin()+NewNumElts_Lo); 67595db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &LoOps[0], LoOps.size()); 6760c7029805ef35ce9805931067b841e6af11db382eChris Lattner 67615db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts_Lo, 67627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 67635db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &HiOps[0], HiOps.size()); 6764c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6765c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 67667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 67675db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman // FIXME: Handle non-power-of-two vectors? 67687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 67697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 67707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 67717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 67727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 67737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 67747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 67755db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Lo, &LoOps[0], LoOps.size()); 67766595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 67777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 67787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 67795db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Hi, &HiOps[0], HiOps.size()); 67807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 67816595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 67826595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 6783c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman case ISD::SELECT: { 6784c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand Cond = Node->getOperand(0); 6785c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6786c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand LL, LH, RL, RH; 6787c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(1), LL, LH); 6788c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(2), RL, RH); 6789c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6790c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman if (MVT::isVector(Cond.getValueType())) { 6791c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a vector merge. 6792c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand CL, CH; 6793c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Cond, CL, CH); 67945db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, CL, LL, RL); 67955db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, CH, LH, RH); 6796c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } else { 6797c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a simple select with vector operands. 67985db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, Cond, LL, RL); 67995db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, Cond, LH, RH); 6800c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 6801c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman break; 6802c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 68037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 68047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 68057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 68067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 68077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 68087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 68097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 68107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 68117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 6812826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 68137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 68147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 6815089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::XOR: 6816089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::UREM: 6817089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::SREM: 6818089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::FREM: { 6819c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 6820c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 6821c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 6822c7029805ef35ce9805931067b841e6af11db382eChris Lattner 68235db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, LL, RL); 68245db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, LH, RH); 6825c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6826c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6827826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOWI: { 6828826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6829826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6830826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 68315db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L, Node->getOperand(1)); 68325db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H, Node->getOperand(1)); 6833826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6834826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 6835826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTTZ: 6836826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTLZ: 6837826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTPOP: 6838826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FNEG: 6839826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FABS: 6840826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSQRT: 6841826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSIN: 6842b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FCOS: 6843b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_SINT: 6844b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_UINT: 6845b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::SINT_TO_FP: 6846b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::UINT_TO_FP: { 6847826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6848826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6849826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 68505db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L); 68515db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H); 6852826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6853826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 68547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 68557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 68567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LD->getChain(); 68577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LD->getBasePtr(); 68587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 68597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 68607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 68617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 68627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 68635db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getLoad(NewVT_Lo, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 68645db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned IncrementSize = NewNumElts_Lo * MVT::getSizeInBits(NewEltVT)/8; 6865c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 68660bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 68677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 6868dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 68695db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getLoad(NewVT_Hi, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 6870c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6871c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 6872c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 6873c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 6874c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 6875c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6876c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6877c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 6878c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6879c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 68807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 68817692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 68827692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 688310a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand InOp = Node->getOperand(0); 688410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman if (!MVT::isVector(InOp.getValueType()) || 688510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman MVT::getVectorNumElements(InOp.getValueType()) == 1) { 688610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 688710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 688810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 688985dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand Ptr = DAG.CreateStackTemporary(InOp.getValueType()); 6890bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *FI = cast<FrameIndexSDNode>(Ptr.Val); 68917692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 6892786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 689369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp, Ptr, 68943069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 689569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FI->getIndex()); 689669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, 68973069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 689869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FI->getIndex()); 68997692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 690010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 690110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 69025db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT_Lo, Lo); 69035db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT_Hi, Hi); 690410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 69057692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 6906c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6907c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6908c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 690940030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 6910c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 691110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 6912c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 6913c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6914c7029805ef35ce9805931067b841e6af11db382eChris Lattner 691589b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 691689b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 691789b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 69187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) { 69197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && 69207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "Bad ScalarizeVectorOp invocation!"); 6921c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 69227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorElementType(Op.getValueType()); 69237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::getVectorNumElements(Op.getValueType()) == 1); 6924c7029805ef35ce9805931067b841e6af11db382eChris Lattner 69257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 69267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand>::iterator I = ScalarizedNodes.find(Op); 69277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 6928c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6929c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 6930c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 69312332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 6932e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 693339833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 6934e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 69357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 69367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 69377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 69387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 69397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 69407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 69417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 69427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 69437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 69447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 69457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 69467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 69477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 6948826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 69497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 69507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 69517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 69527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 6953c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 69547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 69557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 6956c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 69577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 69587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 69597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 69607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 69617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 69627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 69637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 69647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 69657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 69669e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman case ISD::FPOWI: 69679e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Result = DAG.getNode(Node->getOpcode(), 69689e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman NewVT, 69699e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 69709e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Node->getOperand(1)); 69719e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman break; 69727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 69737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 69747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 69757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 6976c7029805ef35ce9805931067b841e6af11db382eChris Lattner 69777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 69787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 69797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, 69807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LD->isVolatile(), LD->getAlignment()); 69817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 6982c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6983c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 6984c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6985c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 69867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 69877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 69887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 69897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 69907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 69917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 6992c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 69937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 69946595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 69956595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 69966595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 69976595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 69987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 69997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 70007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand EltNum = Node->getOperand(2).getOperand(0); 70017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 70027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 70037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 70047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 70052332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 70067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 70077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 70087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 70096595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 70106595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 70117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: 70127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 7013db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 70147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 7015b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 70167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 70177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 7018b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 7019c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 7020c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7021c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 7022c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 70237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 70247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 7025c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 7026c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 7027c7029805ef35ce9805931067b841e6af11db382eChris Lattner 70283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 70293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 70303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 70319c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 70325e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 70335e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 70343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 70353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 7036456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 70373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 70383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7039