LegalizeDAG.cpp revision b625f2f8960de32bc973092aaee8ac62863006fe
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" 1961bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng#include "llvm/Target/TargetFrameInfo.h" 203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Target/TargetLowering.h" 21e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner#include "llvm/Target/TargetData.h" 223d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng#include "llvm/Target/TargetMachine.h" 230f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner#include "llvm/Target/TargetOptions.h" 24adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 26c10305743c313558405079452138f03124e87581Reid Spencer#include "llvm/DerivedTypes.h" 275e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 28a4f0b3a084d120cfc5b5bb06f64b222f5cb72740Chris Lattner#include "llvm/Support/Compiler.h" 29dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands#include "llvm/Support/MathExtras.h" 307971514755a08ec156a1b9c0f7f05d67919c56b7Chris Lattner#include "llvm/ADT/DenseMap.h" 31f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner#include "llvm/ADT/SmallVector.h" 3200755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner#include "llvm/ADT/SmallPtrSet.h" 33033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng#include <map> 343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 365e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#ifndef NDEBUG 375e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic cl::opt<bool> 385e46a19ec848cd4fc9649bd5170c43d9e657668cChris LattnerViewLegalizeDAGs("view-legalize-dags", cl::Hidden, 395e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner cl::desc("Pop up a window to show dags before legalize")); 405e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#else 415e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic const bool ViewLegalizeDAGs = 0; 425e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#endif 435e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 57360e8200ec544a3c877ff74b48f445140ac9bbd6Chris Lattnerclass VISIBILITY_HIDDEN SelectionDAGLegalize { 583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand LastCALLSEQ_END; 676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 7468a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 7568a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 76d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 8268a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 87718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand> LegalizedNodes; 883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8903c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 9003c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 9103c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 9240030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand> PromotedNodes; 9303c8546ec57523970874917854a2fb77b1ff598eChris Lattner 94c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 95c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 96c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 9740030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes; 983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 99c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 100c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 101c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 102c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes; 103c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// ScalarizedNodes - For nodes that need to be converted from vector types to 1057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// scalar types, this contains the mapping of ones we have already 106c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 1077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand> ScalarizedNodes; 108c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1098afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner void AddLegalizedOperand(SDOperand From, SDOperand To) { 11069a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 11169a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 11369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 1148afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 11503c8546ec57523970874917854a2fb77b1ff598eChris Lattner void AddPromotedOperand(SDOperand From, SDOperand To) { 11640030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = PromotedNodes.insert(std::make_pair(From, To)); 11703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 11869a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11969a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 12003c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1218afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1249c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner SelectionDAGLegalize(SelectionDAG &DAG); 1253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 1293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizeAction getTypeAction(MVT::ValueType VT) const { 13068a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 1353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isTypeLegal(MVT::ValueType VT) const { 1363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 141456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 1427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// HandleOp - Legalize, Promote, or Expand the specified operand as 143c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 144c7029805ef35ce9805931067b841e6af11db382eChris Lattner void HandleOp(SDOperand Op); 145c7029805ef35ce9805931067b841e6af11db382eChris Lattner 146c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 147c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 148c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 1493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LegalizeOp(SDOperand O); 150c7029805ef35ce9805931067b841e6af11db382eChris Lattner 151826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// UnrollVectorOp - We know that the given vector has a legal type, however 152826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// the operation it performs is not legal and is an operation that we have 153826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// no way of lowering. "Unroll" the vector, splitting out the scalars and 154826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// operating on each element individually. 155826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand UnrollVectorOp(SDOperand O); 156826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 157c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 158c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 159c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 160c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 161c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 16203c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 164c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 165c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 166c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 167c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 170c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 171c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// SplitVectorOp - Given an operand of vector type, break it down into 1737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// two smaller values. 174c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 175c7029805ef35ce9805931067b841e6af11db382eChris Lattner 17689b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// ScalarizeVectorOp - Given an operand of single-element vector type 17789b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// (e.g. v1f32), convert it into the equivalent operation that returns a 17889b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// scalar (e.g. f32) value. 1797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ScalarizeVectorOp(SDOperand O); 180c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1814352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1824352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1844352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1884352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 1904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDNode *isShuffleLegal(MVT::ValueType VT, SDOperand Mask) const; 1914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 192c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 19300755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 1946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 195750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 196750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 19747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer SDOperand ExpandLibCall(const char *Name, SDNode *Node, bool isSigned, 19877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 19977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 20077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 201cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 2021401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand EmitStackConvert(SDOperand SrcOp, MVT::ValueType SlotVT, 2031401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner MVT::ValueType DestVT); 204ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 2054352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 2066269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 2076269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 2086269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 2095a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 2105a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 2111618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 2121618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 21300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 214456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 215456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 216e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 217e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2185b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2195b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 220b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ExpandEXTRACT_SUBVECTOR(SDOperand Op); 2224aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 2324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDNode *SelectionDAGLegalize::isShuffleLegal(MVT::ValueType VT, 2334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand Mask) const { 2344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::getVectorNumElements(NVT) / MVT::getVectorNumElements(VT); 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 250bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 262bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2719c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2729c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2739c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2746a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 278e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// ComputeTopDownOrdering - Compute a top-down ordering of the dag, where Order 279e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// contains all of a nodes operands before it contains the node. 280e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattnerstatic void ComputeTopDownOrdering(SelectionDAG &DAG, 281e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SmallVector<SDNode*, 64> &Order) { 282e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 283e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner DenseMap<SDNode*, unsigned> Visited; 284e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner std::vector<SDNode*> Worklist; 285e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.reserve(128); 28632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 287e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 288e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // entry node) that have no operands. 289e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 290e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner E = DAG.allnodes_end(); I != E; ++I) { 291e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (I->getNumOperands() == 0) { 292e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Visited[I] = 0 - 1U; 293e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(I); 294e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 29532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 29632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 297e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner while (!Worklist.empty()) { 298e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SDNode *N = Worklist.back(); 299e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.pop_back(); 300e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 301e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (++Visited[N] != N->getNumOperands()) 302e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner continue; // Haven't visited all operands yet 303e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 304e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.push_back(N); 305e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 306e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Now that we have N in, add anything that uses it if all of their operands 307e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // are now done. 308e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); 309e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner UI != E; ++UI) 310e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(*UI); 311e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 312e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 313e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner assert(Order.size() == Visited.size() && 314e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.size() == 315e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 316e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner "Error: DAG is cyclic!"); 31732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 31832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3191618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 324ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 325ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 326ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 327ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 32832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 32932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 3300ed44170752b85c3dd3bbf95459dd2668864f5ecChris Lattner SmallVector<SDNode*, 64> Order; 331e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner ComputeTopDownOrdering(DAG, Order); 332ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 333c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 334c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 33532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 33632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 33832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 33932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 34371c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 344c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 3457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizedNodes.clear(); 3463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 348190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3546831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 406c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 407c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 408c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 409c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 410c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 41100755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 4126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 414c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 415c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 416c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 417c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 437c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 439c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 440c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 441c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 442c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 44580edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// HandleOp - Legalize, Promote, or Expand the specified operand as 450c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 451c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 4527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType VT = Op.getValueType(); 4537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (getTypeAction(VT)) { 454c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 4557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Legal: (void)LegalizeOp(Op); break; 4567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Promote: (void)PromoteOp(Op); break; 457c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 4587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(VT)) { 4597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal scalar, expand it into its two component 4607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // pieces. 461c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 46209ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) 46309ec1b058331aadb29a348091611d23892b5c492Chris Lattner break; // Allow illegal target nodes. 464c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 4657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::getVectorNumElements(VT) == 1) { 4667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal single element vector, convert it to a 4677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // scalar operation. 4687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman (void)ScalarizeVectorOp(Op); 469c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Otherwise, this is an illegal multiple element vector. 4717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Split it in half and legalize both parts. 4727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand X, Y; 4737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SplitVectorOp(Op, X, Y); 474c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 475c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 476c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 477c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4799f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 4809f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 4819f87788040786b1bc6530763e4cf7e105bfb2924Evan Chengstatic SDOperand ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 482279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 483004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 484004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 485004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 486004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 487004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 488004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // double. 489004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng MVT::ValueType VT = CFP->getValueType(0); 490004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool isDouble = VT == MVT::f64; 491118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen ConstantFP *LLVMC = ConstantFP::get(MVT::getTypeForValueType(VT), 4929e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CFP->getValueAPF()); 4939f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 4949e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (VT!=MVT::f64 && VT!=MVT::f32) 4959e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Invalid type expansion"); 4969d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen return DAG.getConstant(LLVMC->getValueAPF().convertToAPInt().getZExtValue(), 4979d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen isDouble ? MVT::i64 : MVT::i32); 498279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 499279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 500f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen if (isDouble && CFP->isValueValidForType(MVT::f32, CFP->getValueAPF()) && 501004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Only do this if the target has a native EXTLOAD instruction from f32. 5029e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // Do not try to be clever about long doubles (so far) 503004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, MVT::f32)) { 504004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC,Type::FloatTy)); 505004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng VT = MVT::f32; 506004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Extend = true; 507004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 508004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 509004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 510004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (Extend) { 511004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 512004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng CPIdx, NULL, 0, MVT::f32); 513004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } else { 514004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 515004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 516004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 517004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 519912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 520912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 521912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 522912095becac923ff614d7b07728eb345ada67765Evan ChengSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT::ValueType NVT, 523912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 524068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng MVT::ValueType VT = Node->getValueType(0); 525912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcVT = Node->getOperand(1).getValueType(); 5267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 5277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 528912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 529068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 530912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 531068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 532912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 533912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 534068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 535912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 536068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 537912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 538912095becac923ff614d7b07728eb345ada67765Evan Cheng int SizeDiff = MVT::getSizeInBits(SrcNVT) - MVT::getSizeInBits(NVT); 539912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 540912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 541912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 542912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 543912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 544912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 545068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 546068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 547068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 548068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 549068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 550068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 551912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 552068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 553068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 554068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 555912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 556912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 557912095becac923ff614d7b07728eb345ada67765Evan Cheng} 558912095becac923ff614d7b07728eb345ada67765Evan Cheng 559f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 560f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 561f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 562f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 563f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = ST->getChain(); 564f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = ST->getBasePtr(); 565f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Val = ST->getValue(); 566f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = Val.getValueType(); 567907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int Alignment = ST->getAlignment(); 568907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int SVOffset = ST->getSrcValueOffset(); 569b625f2f8960de32bc973092aaee8ac62863006feDan Gohman if (MVT::isFloatingPoint(ST->getMemoryVT())) { 570907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a bitconvert of the value to the integer type of the 571907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // same size, then a (misaligned) int store. 572907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 573907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (VT==MVT::f64) 574907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 575907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (VT==MVT::f32) 576907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 577907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 578907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(0 && "Unaligned load of unsupported floating point type"); 579907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 580907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, intVT, Val); 581907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getStore(Chain, Result, Ptr, ST->getSrcValue(), 582907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, ST->isVolatile(), Alignment); 583907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 584b625f2f8960de32bc973092aaee8ac62863006feDan Gohman assert(MVT::isInteger(ST->getMemoryVT()) && 585907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen "Unaligned store of unknown type."); 586f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 587b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType NewStoredVT = ST->getMemoryVT() - 1; 588f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewStoredVT); 589f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 590f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 591f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Divide the stored value in two parts. 592f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 593f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo = Val; 594f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Hi = DAG.getNode(ISD::SRL, VT, Val, ShiftAmount); 595f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 596f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Store the two parts 597f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Store1, Store2; 598f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store1 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Lo:Hi, Ptr, 599f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset, NewStoredVT, 600f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->isVolatile(), Alignment); 601f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 602f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 603dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 604f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store2 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Hi:Lo, Ptr, 605f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset + IncrementSize, 606f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewStoredVT, ST->isVolatile(), Alignment); 607f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 608f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::TokenFactor, MVT::Other, Store1, Store2); 609f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 610f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 611f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedLoad - Expands an unaligned load to 2 half-size loads. 612f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 613f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedLoad(LoadSDNode *LD, SelectionDAG &DAG, 614f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 615f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int SVOffset = LD->getSrcValueOffset(); 616f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = LD->getChain(); 617f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = LD->getBasePtr(); 618f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = LD->getValueType(0); 619b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType LoadedVT = LD->getMemoryVT(); 620e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner if (MVT::isFloatingPoint(VT) && !MVT::isVector(VT)) { 621907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a (misaligned) integer load of the same size, 622907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // then bitconvert to floating point. 623907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 624e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner if (LoadedVT == MVT::f64) 625907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 626e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner else if (LoadedVT == MVT::f32) 627907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 628907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 629907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(0 && "Unaligned load of unsupported floating point type"); 630907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 631907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand newLoad = DAG.getLoad(intVT, Chain, Ptr, LD->getSrcValue(), 632907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, LD->isVolatile(), 633907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen LD->getAlignment()); 634907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, LoadedVT, newLoad); 635907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (LoadedVT != VT) 636907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, VT, Result); 637907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 638907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Ops[] = { Result, Chain }; 639907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 640907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Ops, 2); 641907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 642e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner assert((MVT::isInteger(LoadedVT) || MVT::isVector(LoadedVT)) && 643e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner "Unaligned load of unsupported type."); 644e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 645e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner // Compute the new VT that is half the size of the old one. We either have an 646e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner // integer MVT or we have a vector MVT. 647e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned NumBits = MVT::getSizeInBits(LoadedVT); 648e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner MVT::ValueType NewLoadedVT; 649e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner if (!MVT::isVector(LoadedVT)) { 650e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner NewLoadedVT = MVT::getIntegerType(NumBits/2); 651e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner } else { 652e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner // FIXME: This is not right for <1 x anything> it is also not right for 653e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner // non-power-of-two vectors. 654e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner NewLoadedVT = MVT::getVectorType(MVT::getVectorElementType(LoadedVT), 655e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner MVT::getVectorNumElements(LoadedVT)/2); 656e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner } 657e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner NumBits >>= 1; 658e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 659e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned Alignment = LD->getAlignment(); 660e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned IncrementSize = NumBits / 8; 661f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ISD::LoadExtType HiExtType = LD->getExtensionType(); 662f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 663f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. 664f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (HiExtType == ISD::NON_EXTLOAD) 665f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio HiExtType = ISD::ZEXTLOAD; 666f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 667f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Load the value in two parts 668f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo, Hi; 669f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (TLI.isLittleEndian()) { 670f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 671f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset, NewLoadedVT, LD->isVolatile(), Alignment); 672f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 673f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 674f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), 675f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 676dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 677f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 678f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), SVOffset, 679f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewLoadedVT,LD->isVolatile(), Alignment); 680f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 681f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 682f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 683f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 684dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 685f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 686f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 687f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // aggregate the two parts 688f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 689f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Result = DAG.getNode(ISD::SHL, VT, Hi, ShiftAmount); 690f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = DAG.getNode(ISD::OR, VT, Result, Lo); 691f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 692f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 693f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi.getValue(1)); 694f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 695f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ops[] = { Result, TF }; 696f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), Ops, 2); 697f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 698912095becac923ff614d7b07728eb345ada67765Evan Cheng 699826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// UnrollVectorOp - We know that the given vector has a legal type, however 700826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// the operation it performs is not legal and is an operation that we have 701826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// no way of lowering. "Unroll" the vector, splitting out the scalars and 702826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// operating on each element individually. 703826695281344e3a4c4d44d73dd155107aafd689bDan GohmanSDOperand SelectionDAGLegalize::UnrollVectorOp(SDOperand Op) { 704826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType VT = Op.getValueType(); 705826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(isTypeLegal(VT) && 706826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Caller should expand or promote operands that are not legal!"); 707826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(Op.Val->getNumValues() == 1 && 708826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Can't unroll a vector with multiple results!"); 709826695281344e3a4c4d44d73dd155107aafd689bDan Gohman unsigned NE = MVT::getVectorNumElements(VT); 710826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 711826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 712826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 8> Scalars; 713826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 4> Operands(Op.getNumOperands()); 714826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned i = 0; i != NE; ++i) { 715826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned j = 0; j != Op.getNumOperands(); ++j) { 716826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Operand = Op.getOperand(j); 717826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType OperandVT = Operand.getValueType(); 718826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(OperandVT)) { 719826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A vector operand; extract a single element. 720826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType OperandEltVT = MVT::getVectorElementType(OperandVT); 721826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, 722826695281344e3a4c4d44d73dd155107aafd689bDan Gohman OperandEltVT, 723826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operand, 724826695281344e3a4c4d44d73dd155107aafd689bDan Gohman DAG.getConstant(i, MVT::i32)); 725826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } else { 726826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A scalar operand; just use it as is. 727826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = Operand; 728826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 729826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 730826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Scalars.push_back(DAG.getNode(Op.getOpcode(), EltVT, 731826695281344e3a4c4d44d73dd155107aafd689bDan Gohman &Operands[0], Operands.size())); 732826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 733826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 734826695281344e3a4c4d44d73dd155107aafd689bDan Gohman return DAG.getNode(ISD::BUILD_VECTOR, VT, &Scalars[0], Scalars.size()); 735826695281344e3a4c4d44d73dd155107aafd689bDan Gohman} 736826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 737007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands/// GetFPLibCall - Return the right libcall for the given floating point type. 738007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sandsstatic RTLIB::Libcall GetFPLibCall(MVT::ValueType VT, 739007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F32, 740007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F64, 741007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F80, 742007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_PPCF128) { 743007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands return 744007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f32 ? Call_F32 : 745007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f64 ? Call_F64 : 746007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f80 ? Call_F80 : 747007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::ppcf128 ? Call_PPCF128 : 748007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::UNKNOWN_LIBCALL; 749007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands} 750007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands 751a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 752a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 753a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 754a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 7553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 75609ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 75709ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 75809ec1b058331aadb29a348091611d23892b5c492Chris Lattner 759c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 760e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 76145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 762e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 7633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 764e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 76545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 76645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 767c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 768c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 7693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 770c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 77103c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 7723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 77545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 77645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 777718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 778e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 7793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7809373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 7813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 782456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 783456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 7843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 785948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 786948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 787948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 788948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 789948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 79037efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 791948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 7923181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 793948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 794948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 795b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 796948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 797948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 798948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 799948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 800948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 801948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 802a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 803948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 804948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 8053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 806d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 807d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 808d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 809f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 810c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 811d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 812c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 813f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 814d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 815d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 816d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 817d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 818d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 819d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 820e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 82139833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 822e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 8233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 8243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 8250d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 8263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 827b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 82803c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 82937efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 83037efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 8310c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 8320c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 833948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 834948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 835948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 836948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 8370c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 8380c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 8390c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 8403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 841bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 842bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 843bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 844bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 845bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 846bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 847bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 848bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 849bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 850bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 851055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov case ISD::FRAME_TO_ARGS_OFFSET: { 852066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 853066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 854066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov default: assert(0 && "This action is not supported yet!"); 855066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Custom: 856066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 857066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov if (Result.Val) break; 858066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov // Fall Thru 859066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Legal: 860066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = DAG.getConstant(0, VT); 861066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 862066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov } 863055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov } 864066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 8652bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 8662bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 8672bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey MVT::ValueType VT = Node->getValueType(0); 8682bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8692bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 8702bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 8718782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 872b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp1, Reg, VT); 8732bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8742bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8752bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 8762bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 8772bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 8782bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 879eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 880eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 881eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 882b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Ops, 2); 8838782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8848782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 8858782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 886eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 887b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 888b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 889b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->getNumValues() == 2 && 890b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 891b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 892b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 893b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 894b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 895b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 896b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 897b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 898b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? Tmp2 : Tmp1; 8998782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 9008782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 9018782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 9028782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey MVT::ValueType VT = Node->getValueType(0); 9038782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9048782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 9058782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 9068782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 907b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp2, Reg, VT); 9088782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 9098782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 9108782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 9118782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 9128782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 9138782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 914eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 915eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 916eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 917b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Ops, 2); 9182bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 9192bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 9202bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 921eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 922b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 923b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 924b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->getNumValues() == 2 && 925b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 926b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 927b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 928b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 929b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 930b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 931b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 932b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 933b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? Tmp2 : Tmp1; 9346d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky case ISD::EH_RETURN: { 9352365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 9362365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // The only "good" option for this node is to custom lower it. 9372365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9382365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov default: assert(0 && "This action is not supported at all!"); 9392365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Custom: 9402365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 9412365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov if (Result.Val) break; 9422365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Fall Thru 9432365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Legal: 9442365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Target does not know, how to lower this, lower to noop 9452365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = LegalizeOp(Node->getOperand(0)); 9462365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 9472365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov } 9486d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky } 9492365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 95008951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 95108951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 95208951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 953c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 95408951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 955308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 956c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 957456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 958456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 95969a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 96069a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 9617310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 962f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 963c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 9647310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 965f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 966c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 967f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 968c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 969c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 970c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 971c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 9727310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 9737310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 97413c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 97513c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 97613c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 97713c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 97813c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 979fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 980fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 981fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 982ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 983ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 984fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 985fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 986fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 987f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen Result = DAG.getConstantFP(APFloat(APInt(MVT::getSizeInBits(VT), 0)), 988f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen VT); 989fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 990fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 991fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 992ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 993fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 994fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 995fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 996fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 997d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 99848b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 99948b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 100048b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 1001f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1002d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1003d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1004f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 100510d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 100610d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 100748b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 100810d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 100910d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 101010d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 101113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 101213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 101313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 101413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 101513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 101613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 101713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 101813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 101913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 102013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 102113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 102213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 102313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 1024d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 102536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 102636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 102736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 102836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 102936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 103036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 103136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 103236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 1033f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 103444c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 1035abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 10361ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 1037abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 103844c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 1039abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 1040e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 1041abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 1042e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 104344c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 1044abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1045bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 1046abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 1047abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 1048abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 1049abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1050abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 1051abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 1052abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 1053abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 1054bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 1055abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 1056d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 1057d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 105844c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned ID = MMI->RecordLabel(Line, Col, SrcFile); 1059abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 10601ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey Result = DAG.getNode(ISD::LABEL, MVT::Other,&Ops[0],Ops.size()); 1061abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1062e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 1063e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 1064e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 106536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1066e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 106736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 10689ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 10699ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 1070f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 107136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 10729ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 10739ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 10749ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 10759ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 10769ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 10779ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 10789ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 10799ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 108036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 108136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 1082f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 108336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 108436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 108536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 108636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1087f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 1088f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 1089abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 1090f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 1091f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 1092abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1093abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1094abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 1095abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 1096abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 1097c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 1098abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1099abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1100abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1101abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 11021ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 11031ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid LABEL node!"); 11041ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 1105abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 1106abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1107abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1108abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 1109c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1110f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 1111a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 1112a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 1113a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 1114f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 1115551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 111636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 1117c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 1118c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 1119c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 1120c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 1121c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 11223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 11233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 11243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1125c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 1126c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 1127c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (Tmp1.Val) 1128c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 1129c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 11303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1131c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 11323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 11333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 11343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 11353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 11363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 11373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 11383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 11393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 11403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 11413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 11423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 11433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 11443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 11453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 11463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 11473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 11483181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 11493181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 1150f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen Result = DAG.getTargetConstantFP(CFP->getValueAPF(), 1151f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CFP->getValueType(0)); 11523181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 11533181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 11543181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 11553181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 11563181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 11573181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 11583181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 11593181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 11603181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 11613181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 11623181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 11633181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 11643181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 1165279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 11663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 11673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 11683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1169040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1170040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1171c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1172c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1173c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1174c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1175c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1176c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1177c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1178c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1179040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1180f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1181040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1182c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1183c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1184f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1185a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1186a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1187fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1188fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1189f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1190fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1191b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1192b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 11930f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 11940f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // The number of incoming and outgoing values should match; unless the final 11950f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // outgoing value is a flag. 11960f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling assert((Tmp3.Val->getNumValues() == Result.Val->getNumValues() || 11970f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling (Tmp3.Val->getNumValues() == Result.Val->getNumValues() + 1 && 11980f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp3.Val->getValueType(Tmp3.Val->getNumValues() - 1) == 11990f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling MVT::Flag)) && 1200b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1201e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1202f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1203e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1204b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 12050f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling if (Tmp3.Val->getValueType(i) == MVT::Flag) 12060f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling continue; 1207b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 1208e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 1209e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1210e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 1211e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1212e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1213557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1214557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1215557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1216557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1217557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1218557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1219557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1220557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1221557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1222557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1223557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1224557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1225557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1226557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp3 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1227557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1228557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1229557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1230b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1231b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 12322332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 12332332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 12342332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 12352332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 12362332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 12372332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12382332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12392332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1240ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1241ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 1242b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 12432332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12452332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 12462332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 12472332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 12482332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 12492332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 12502332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 12512332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 12522332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 12532332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 12542332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 12552332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12562332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 12572281a991414f681c482157265461b29a923ef620Nate Begeman Tmp4 = TLI.LowerOperation(Result, DAG); 12582281a991414f681c482157265461b29a923ef620Nate Begeman if (Tmp4.Val) { 12592281a991414f681c482157265461b29a923ef620Nate Begeman Result = Tmp4; 12602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 12632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 12648d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 12658d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 12668d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 12678d5a894501b7546dee94df03118b90126c420820Chris Lattner SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 12688d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1.getValueType(), Tmp2); 12698d5a894501b7546dee94df03118b90126c420820Chris Lattner 12708d5a894501b7546dee94df03118b90126c420820Chris Lattner unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 12718d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 127251eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType ShufMaskEltVT = MVT::getVectorElementType(ShufMaskVT); 12738d5a894501b7546dee94df03118b90126c420820Chris Lattner 12748d5a894501b7546dee94df03118b90126c420820Chris Lattner // We generate a shuffle of InVec and ScVec, so the shuffle mask should 12758d5a894501b7546dee94df03118b90126c420820Chris Lattner // be 0,1,2,3,4,5... with the appropriate element replaced with elt 0 of 12768d5a894501b7546dee94df03118b90126c420820Chris Lattner // the RHS. 1277bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> ShufOps; 12788d5a894501b7546dee94df03118b90126c420820Chris Lattner for (unsigned i = 0; i != NumElts; ++i) { 12798d5a894501b7546dee94df03118b90126c420820Chris Lattner if (i != InsertPos->getValue()) 12808d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 12818d5a894501b7546dee94df03118b90126c420820Chris Lattner else 12828d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 12838d5a894501b7546dee94df03118b90126c420820Chris Lattner } 1284bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 1285bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ShufOps[0], ShufOps.size()); 12868d5a894501b7546dee94df03118b90126c420820Chris Lattner 12878d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 12888d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1, ScVec, ShufMask); 12898d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = LegalizeOp(Result); 12908d5a894501b7546dee94df03118b90126c420820Chris Lattner break; 12918d5a894501b7546dee94df03118b90126c420820Chris Lattner } 12928d5a894501b7546dee94df03118b90126c420820Chris Lattner 12932332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 12942332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 12952332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 12962332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 12972332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 12982332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 1299f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 1300f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType EltVT = Tmp2.getValueType(); 1301f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 1302f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 130385dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(VT); 1304eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 13058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, NULL, 0); 1306eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 1307eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 1308f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 1309f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 1310eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 1311f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 1312f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 1313f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 1314eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 13158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Ch = DAG.getStore(Ch, Tmp2, StackPtr2, NULL, 0); 1316eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 1317466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Ch, StackPtr, NULL, 0); 13182332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13192332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13202332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13212332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1322ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 13234352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 13244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 13254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 13264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 13274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1328ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1329ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1330ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1331ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1332ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1333ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1334ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 13354d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 13364d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 13374d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 13384d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 13394d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 13404d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 13414d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 13424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 13434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1344ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1345ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1346ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 134787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 134887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 134987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 135087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 135187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 135287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 13534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 13544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 13554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 13564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 13574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 13584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 13594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 136018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 136118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 136218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 136318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 136418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 136518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 136618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 136718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 136851eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 136918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 137018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 137118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1372bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 137318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 137418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 137518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 137618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 137718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 137818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 137918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 138018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 138118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 138218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 138318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 138418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 138518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 138618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 138718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1388bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 13894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 139018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 13914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 13924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 13934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 13944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 13954352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 13964352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 13974352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 13984352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 13994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 14004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 14014352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 14024352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 14034352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 14044352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 14054352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 14064352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 140787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 140887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1409384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1410384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 14117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1412384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1413384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 14147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1415384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1416384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 14177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 14187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 14197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 14207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 14217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 14226595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 14236595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 14246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 14256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 14266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 14286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 14296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 143000755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 14316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1432c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1433c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1434c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 14356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 14376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 14386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 14396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 14416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1442c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1443b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1444b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1445b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 14466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 14486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1449f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 14506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1451f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 14526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 14536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 14554b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 14564b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 14574b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 14584b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 14596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 14606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 14616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 14626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 14636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 14646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 14656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 14666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 14676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 14686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 14706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 14716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 14726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 14736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 147416cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 14756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 14766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 14776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 14786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 1479718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 14806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 14816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 14826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 14836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 14846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 14866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 14873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 148870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 148970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 149070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 149170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1492f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 149370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1494f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 149570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 149670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 149770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 149870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 149970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1500f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 150170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 150270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1503f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 150470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 15056a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 15064b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 15076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 15086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 15094b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 15104b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 15114b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 15124b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 15134b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 15144b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1515a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 151661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1517fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1518fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1519fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1520c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1521fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1522c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 15235f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 152461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1525a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1526903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1527903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1528903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1529903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1530903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 15310f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 15320f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // Chain the dynamic stack allocation so that it doesn't modify the stack 15330f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // pointer when other instructions are using the stack. 15340f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCALLSEQ_START(Chain, 15350f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy())); 15360f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1537903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 153861bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, VT); 153961bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 154061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned Align = cast<ConstantSDNode>(Tmp3)->getValue(); 154161bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 154261bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 154361bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 15443e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 15453e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 154661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 15470f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 15480f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 15490f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp2 = 15500f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getCALLSEQ_END(Chain, 15510f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 15520f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 15530f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling SDOperand()); 15540f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1555c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1556c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1557903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1558903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1559903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 15605f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 15615f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1562c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1563c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1564a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1565903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1566a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1567903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1568a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1569903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1570903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1571c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1572c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1573903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1574a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 157525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1576f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 157725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 157825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 157925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 158025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 158125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 158225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 158325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 158425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 158525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 158625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 158725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 158825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 158925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 159025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 159125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 159225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 159325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 159425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 159525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 159625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 159725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 159825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 159925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 160025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 160125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1602ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 160325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1604f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1605ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1606ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1607c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1608ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1609ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 161025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1611c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1612c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 16146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 16156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 16166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 16176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1618c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1619c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 162037efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 162137efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 162237efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 162337efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 162437efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 162537efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 162637efe6764568a3829fee26aba532283131d1a104Nate Begeman 162737efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 162837efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 162937efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 163037efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 163137efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 163237efe6764568a3829fee26aba532283131d1a104Nate Begeman } 163337efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 163437efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 16353d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 16363d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16373d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 16383d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 16393d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 16403d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 16413d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 16423d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 16433d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 16443d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 16453d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 16463d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 16473d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 16483d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 16493d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 16503d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 16513d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 16523d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 16533d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 16543d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 16553d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 16563d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 16573d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1658acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1659acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 16603d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 16613d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1662acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1663acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1664acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1665acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 1666acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, NULL, 0); break; 1667acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, NULL, 0); break; 1668acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1669acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1670cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = LD; 1671acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 16723d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 16733d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 1674cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng // RelocBase can be JumpTable, GOT or some sort of global base. 1675cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng if (PTy != MVT::i32) 1676cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::SIGN_EXTEND, PTy, Addr); 1677cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, 1678cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng TLI.getPICJumpTableRelocBase(Table, DAG)); 16793d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 1680cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 16813d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 16823d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 16833d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1684c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1685c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 16876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 16886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 16896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 16906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 169147e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 169247e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 169347e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 169447e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 169547e9223e06390897c3834f8c527001df392570ffChris Lattner break; 169647e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 169747e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1698f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1699f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1700f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 1701ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 1702f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner MVT::getIntVTBitMask(Tmp2.getValueType())^1)) 1703f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 170447e9223e06390897c3834f8c527001df392570ffChris Lattner break; 170547e9223e06390897c3834f8c527001df392570ffChris Lattner } 1706456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1707456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1708c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 17097cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 17107cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 17117cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1712456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1713456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1714456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1715456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1716456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 17177cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 17187cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 17197cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 17207cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 17217cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 17227cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 17237cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 17247cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 17257cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 17267cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 17277cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 17287cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 17297cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 17307cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 17317cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 17327cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 17337cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 17347cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 17366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1738750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1739750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1740750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1741181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1742750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1743722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1744722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1745750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1746750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1747750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1748750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1749750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1750750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1751750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1752750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1753750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1754750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1755456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1756181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1757181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1758456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1759456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1760456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1761456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1762181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 17637cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1764c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1765f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1766466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1767466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1768466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 17692d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1770466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1771466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1772466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1773466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1774466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1775466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1776456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1777466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1778466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1779f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1780f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1781f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1782f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1783f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1784b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(LD->getMemoryVT())); 1785f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1786f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1787f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1788f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1789f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1790907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1791907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1792f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1793f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1794f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1795466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1796466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1797466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1798466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1799466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1800466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1801466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1802466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1803466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1804466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1805466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1806466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1807466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1808466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1809d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1810d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1811466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 181241f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1813466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1814f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1815466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1816466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1817466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1818466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1819466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1820466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1821466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 1822b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType SrcVT = LD->getMemoryVT(); 1823f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned SrcWidth = MVT::getSizeInBits(SrcVT); 1824f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands int SVOffset = LD->getSrcValueOffset(); 1825f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned Alignment = LD->getAlignment(); 1826f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands bool isVolatile = LD->isVolatile(); 1827f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1828f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (SrcWidth != MVT::getStoreSizeInBits(SrcVT) && 1829f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Some targets pretend to have an i1 loading operation, and actually 1830f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // load an i8. This trick is correct for ZEXTLOAD because the top 7 1831f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bits are guaranteed to be zero; it helps the optimizers understand 1832f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // that these bits are zero. It is also useful for EXTLOAD, since it 1833f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // tells the optimizers that those bits are undefined. It would be 1834f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // nice to have an effective generic way of getting these benefits... 1835f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Until such a way is found, don't insist on promoting i1 here. 1836f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands (SrcVT != MVT::i1 || 1837f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI.getLoadXAction(ExtType, MVT::i1) == TargetLowering::Promote)) { 1838f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Promote to a byte-sized load if not loading an integral number of 1839f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24. 1840f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned NewWidth = MVT::getStoreSizeInBits(SrcVT); 1841f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MVT::ValueType NVT = MVT::getIntegerType(NewWidth); 1842f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Ch; 1843f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1844f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // The extra bits are guaranteed to be zero, since we stored them that 1845f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // way. A zext load from NVT thus automatically gives zext from SrcVT. 1846f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1847f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ISD::LoadExtType NewExtType = 1848f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtType == ISD::ZEXTLOAD ? ISD::ZEXTLOAD : ISD::EXTLOAD; 1849f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1850f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(NewExtType, Node->getValueType(0), 1851f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), SVOffset, 1852f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands NVT, isVolatile, Alignment); 1853f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1854f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = Result.getValue(1); // The chain. 1855f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1856f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 1857f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Having the top bits zero doesn't help when sign extending. 1858f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1859f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 1860f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else if (ExtType == ISD::ZEXTLOAD || NVT == Result.getValueType()) 1861f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // All the top bits are guaranteed to be zero - inform the optimizers. 1862f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::AssertZext, Result.getValueType(), Result, 1863f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getValueType(SrcVT)); 1864f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1865f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 1866f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 1867f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else if (SrcWidth & (SrcWidth - 1)) { 1868f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If not loading a power-of-2 number of bits, expand as two loads. 1869f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(MVT::isExtendedVT(SrcVT) && !MVT::isVector(SrcVT) && 1870f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Unsupported extload!"); 1871f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned RoundWidth = 1 << Log2_32(SrcWidth); 1872f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(RoundWidth < SrcWidth); 1873f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ExtraWidth = SrcWidth - RoundWidth; 1874f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtraWidth < RoundWidth); 1875f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 1876f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Load size not an integral number of bytes!"); 1877f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MVT::ValueType RoundVT = MVT::getIntegerType(RoundWidth); 1878f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MVT::ValueType ExtraVT = MVT::getIntegerType(ExtraWidth); 1879f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Lo, Hi, Ch; 1880f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned IncrementSize; 1881f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1882f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (TLI.isLittleEndian()) { 1883f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> ZEXTLOAD:i16 | (shl EXTLOAD@+2:i8, 16) 1884f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the bottom RoundWidth bits. 1885f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 1886f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 1887f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 1888f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1889f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 1890f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 1891f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 1892f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 1893f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1894f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 1895f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 1896f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 1897f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1898f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 1899f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 1900f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 1901f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 1902f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1903f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 1904f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 1905f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 1906f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1907f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 1908f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 1909f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 1910f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Big endian - avoid unaligned loads. 1911f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> (shl EXTLOAD:i16, 8) | ZEXTLOAD@+2:i8 1912f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the top RoundWidth bits. 1913f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1914f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 1915f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 1916f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1917f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 1918f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 1919f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 1920f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 1921f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 1922f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 1923f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 1924f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 1925f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1926f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 1927f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 1928f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 1929f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 1930f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1931f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 1932f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 1933f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 1934f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1935f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 1936f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 1937f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 1938f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1939f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 1940f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 1941f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 1942f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands switch (TLI.getLoadXAction(ExtType, SrcVT)) { 1943f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands default: assert(0 && "This action is not supported yet!"); 1944f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Custom: 1945f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands isCustom = true; 1946f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // FALLTHROUGH 1947f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Legal: 1948f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1949f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getValue(0); 1950f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getValue(1); 1951f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1952f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (isCustom) { 1953f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp3 = TLI.LowerOperation(Result, DAG); 1954f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (Tmp3.Val) { 1955f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp3); 1956f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1957f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 1958f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 1959f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If this is an unaligned load and the target doesn't support it, 1960f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // expand it. 1961f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 1962f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 1963b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(LD->getMemoryVT())); 1964f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (LD->getAlignment() < ABIAlignment){ 1965f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1966f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI); 1967f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getOperand(0); 1968f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getOperand(1); 1969f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp1); 1970f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp2); 1971f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 1972f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1973f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1974f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 1975f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Expand: 1976f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 1977f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 1978f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 1979f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), 1980f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 1981f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1982f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1983f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Load.getValue(1)); 1984f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 1985f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 1986f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 1987f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Turn the unsupported load into an EXTLOAD followed by an explicit 1988f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // zero/sign extend inreg. 1989f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 1990f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), 1991f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), SrcVT, 1992f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 1993f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand ValRes; 1994f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 1995f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1996f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 1997f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else 1998f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1999f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 2000f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 2001466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 2002466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 20039d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 2004f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2005466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 2006466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 2007466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2008466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2009466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 201001ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 201101ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 20125dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 20135dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 20145dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 2015c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 20165dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 20175dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 20185dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 20195dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 20205dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 20215dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 20225dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 20235dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 20245dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 20255dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 20265dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 20275dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 20285dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 20295dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 20305dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 20315dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 20325dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 20335dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 20345dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 20355dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 20365dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 20375dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 20383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 20395dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 20403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 20413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 20423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2043edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2044c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 2045d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 20467310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 2047d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 2048f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 2049c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 20507310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 2051f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 2052c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 2053f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 2054c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 2055c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 2056c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 2057c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 20587310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 20597310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 20607310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 20617310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 2062c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 20637310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2064c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 20657310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 20663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 20673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 20683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 20693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 20706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 20716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 20726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 20736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 20746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 2075f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 20763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 20778e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 207898f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 20798e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 2080f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 20813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 20828e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 20833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2084f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 20857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(Tmp2.getValueType())) { 2086f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 2087f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 2088edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 2089edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 2090edf2e8da256496c19390cfd46da80746373e9989Chris Lattner if (!TLI.isLittleEndian()) 2091edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 2092edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 209313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 209413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 209513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 209613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 2097f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 2098f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2099f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 2100e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Tmp2.ResNo; 2101e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 2102e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 2103f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 21047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2105ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 2106f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 21077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2108ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 21097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 21108e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2111f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 2112f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 21137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 21147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 21158e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2116b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2117b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 2118b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 2119b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2120f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 2121f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 2122f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2123f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2124b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 2125b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 2126f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 2127f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 2128fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 2129f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2130f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2131f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2132edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 21333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 21348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 21358e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2136c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 21378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 21383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 21393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 2141c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 21423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 2144f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 21453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 21468e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 21473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 21483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 21494e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 21508e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 21513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 21533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 21546595cb3000d7f5f8e9a76d556aa8609db91b7887Dan Gohman assert(!MVT::isExtendedVT(Node->getOperand(i).getValueType()) && 2155b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 21563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 21573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 21588e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 215913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 216013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 216113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 216213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 2163edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 21643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 21653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 21668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 21673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2168c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2169c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 2170f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 2171c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 2172f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 2173f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 21743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 21763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 217717c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 21786862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 21796862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 21806862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 21816862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 21826862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 21836862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 21846862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 21856862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 21866862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 218717c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 21883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2189f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 21908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 21918b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 21928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 2193d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 2194d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 2195d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 21968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 21978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 2198d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 2199d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 2200d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 2201d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 2202d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 2203d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 22049e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // We generally can't do this one for long doubles. 22052b4c279a8e203fa8b13adf7ba3a5d4c8bef70df3Chris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 22063cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (CFP->getValueType(0) == MVT::f32 && 22073cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getTypeAction(MVT::i32) == Legal) { 22089d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen Tmp3 = DAG.getConstant((uint32_t)CFP->getValueAPF(). 22099d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen convertToAPInt().getZExtValue(), 22103f6eb7419de437436265831fce92f62498556e08Dale Johannesen MVT::i32); 22119e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 22129e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 22139e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 22149e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (CFP->getValueType(0) == MVT::f64) { 22153cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // If this target supports 64-bit registers, do a single 64-bit store. 22163cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (getTypeAction(MVT::i64) == Legal) { 22173cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp3 = DAG.getConstant(CFP->getValueAPF().convertToAPInt(). 22183cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getZExtValue(), MVT::i64); 22193cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 22203cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 22213cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 22223cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } else if (getTypeAction(MVT::i32) == Legal) { 22233cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // Otherwise, if the target supports 32-bit registers, use 2 32-bit 22243cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // stores. If the target supports neither 32- nor 64-bits, this 22253cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // xform is certainly not worth it. 22263cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner uint64_t IntVal =CFP->getValueAPF().convertToAPInt().getZExtValue(); 22273cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SDOperand Lo = DAG.getConstant(uint32_t(IntVal), MVT::i32); 22283cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SDOperand Hi = DAG.getConstant(uint32_t(IntVal >>32), MVT::i32); 22293cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (!TLI.isLittleEndian()) std::swap(Lo, Hi); 22303cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 22313cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 22323cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 22333cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 22340bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(4)); 22353cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset+4, 2236dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands isVolatile, MinAlign(Alignment, 4U)); 22373cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 22383cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 22393cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 22403cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } 2241d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2242d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2243d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 2244b625f2f8960de32bc973092aaee8ac62863006feDan Gohman switch (getTypeAction(ST->getMemoryVT())) { 22458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 22468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 22472efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 22488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 22498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 22508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 22518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 22528b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2253f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2254f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2255f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2256f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2257f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2258b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(ST->getMemoryVT())); 2259f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2260f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2261f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2262f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2263f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 22648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 22658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 22668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 22678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 22688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 22698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 22708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 22718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 22728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 2273d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 2274d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 22758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 22768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 22772efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 2278f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 22798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 22808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 22818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 22828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2283b625f2f8960de32bc973092aaee8ac62863006feDan Gohman SVOffset, ST->getMemoryVT(), 2284d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 22858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 228603c8546ec57523970874917854a2fb77b1ff598eChris Lattner 22878b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 22888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 22898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 2290c7029805ef35ce9805931067b841e6af11db382eChris Lattner 22918b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 22928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 22938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 22947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (MVT::isVector(ST->getValue().getValueType())) { 22958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 2296e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = ST->getValue().ResNo; 22970bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType InVT = InVal->getValueType(InIx); 22980bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner unsigned NumElems = MVT::getVectorNumElements(InVT); 22990bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType EVT = MVT::getVectorElementType(InVT); 23008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 23017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2302ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 23038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 23047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2305ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 23067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = LegalizeOp(Node->getOperand(1)); 23078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2308d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 23098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 23108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 23118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 23128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 23137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = ScalarizeVectorOp(Node->getOperand(1)); 23148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2315d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 23168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 23178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 23188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 23198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 23208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 23218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SplitVectorOp(Node->getOperand(1), Lo, Hi); 23225db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman IncrementSize = MVT::getVectorNumElements(Lo.Val->getValueType(0)) * 23235db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::getSizeInBits(EVT)/8; 23248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2325c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 23268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ExpandOp(Node->getOperand(1), Lo, Hi); 23277b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 23288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 23298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!TLI.isLittleEndian()) 23308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2331c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2332c7029805ef35ce9805931067b841e6af11db382eChris Lattner 23338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2334d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 23357b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 23367b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 23377b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 23387b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 23397b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 23407b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 23417b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 23428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 23430bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 23448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 23458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2346d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2347dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 23488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2349d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 23508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 23518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 23528b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 23538b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 2354ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner switch (getTypeAction(ST->getValue().getValueType())) { 2355ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Legal: 2356ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = LegalizeOp(ST->getValue()); 2357ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2358ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Promote: 2359ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // We can promote the value, the truncstore will still take care of it. 2360ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = PromoteOp(ST->getValue()); 2361ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2362ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Expand: 2363ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // Just store the low part. This may become a non-trunc store, so make 2364ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // sure to use getTruncStore, not UpdateNodeOperands below. 2365ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner ExpandOp(ST->getValue(), Tmp3, Tmp4); 2366ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner return DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2367ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner SVOffset, MVT::i8, isVolatile, Alignment); 2368ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner } 23697e857201f387d004571e6058e2ea709163500f38Duncan Sands 2370b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType StVT = ST->getMemoryVT(); 23717e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned StWidth = MVT::getSizeInBits(StVT); 23727e857201f387d004571e6058e2ea709163500f38Duncan Sands 23737e857201f387d004571e6058e2ea709163500f38Duncan Sands if (StWidth != MVT::getStoreSizeInBits(StVT)) { 23747e857201f387d004571e6058e2ea709163500f38Duncan Sands // Promote to a byte-sized store with upper bits zero if not 23757e857201f387d004571e6058e2ea709163500f38Duncan Sands // storing an integral number of bytes. For example, promote 23767e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1) 23777e857201f387d004571e6058e2ea709163500f38Duncan Sands MVT::ValueType NVT = MVT::getIntegerType(MVT::getStoreSizeInBits(StVT)); 23787e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getZeroExtendInReg(Tmp3, StVT); 23798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23807e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, NVT, isVolatile, Alignment); 23817e857201f387d004571e6058e2ea709163500f38Duncan Sands } else if (StWidth & (StWidth - 1)) { 23827e857201f387d004571e6058e2ea709163500f38Duncan Sands // If not storing a power-of-2 number of bits, expand as two stores. 23837e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(MVT::isExtendedVT(StVT) && !MVT::isVector(StVT) && 23847e857201f387d004571e6058e2ea709163500f38Duncan Sands "Unsupported truncstore!"); 23857e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned RoundWidth = 1 << Log2_32(StWidth); 23867e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(RoundWidth < StWidth); 23877e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ExtraWidth = StWidth - RoundWidth; 23887e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(ExtraWidth < RoundWidth); 23897e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 23907e857201f387d004571e6058e2ea709163500f38Duncan Sands "Store size not an integral number of bytes!"); 23917e857201f387d004571e6058e2ea709163500f38Duncan Sands MVT::ValueType RoundVT = MVT::getIntegerType(RoundWidth); 23927e857201f387d004571e6058e2ea709163500f38Duncan Sands MVT::ValueType ExtraVT = MVT::getIntegerType(ExtraWidth); 23937e857201f387d004571e6058e2ea709163500f38Duncan Sands SDOperand Lo, Hi; 23947e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned IncrementSize; 23957e857201f387d004571e6058e2ea709163500f38Duncan Sands 23967e857201f387d004571e6058e2ea709163500f38Duncan Sands if (TLI.isLittleEndian()) { 23977e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 X, TRUNCSTORE@+2:i8 (srl X, 16) 23987e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the bottom RoundWidth bits. 23997e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 24007e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, RoundVT, 24017e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 24027e857201f387d004571e6058e2ea709163500f38Duncan Sands 24037e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 24047e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 24057e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 24067e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 24077e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 24087e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 24097e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 24107e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 24117e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 24127e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 24137e857201f387d004571e6058e2ea709163500f38Duncan Sands // Big endian - avoid unaligned stores. 24147e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 (srl X, 8), TRUNCSTORE@+2:i8 X 24157e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the top RoundWidth bits. 24167e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 24177e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 24187e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset, 24197e857201f387d004571e6058e2ea709163500f38Duncan Sands RoundVT, isVolatile, Alignment); 24207e857201f387d004571e6058e2ea709163500f38Duncan Sands 24217e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 24227e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 24237e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 24247e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 24257e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 24267e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 24277e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 24287e857201f387d004571e6058e2ea709163500f38Duncan Sands } 2429c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24307e857201f387d004571e6058e2ea709163500f38Duncan Sands // The order of the stores doesn't matter. 24317e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 24327e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 24337e857201f387d004571e6058e2ea709163500f38Duncan Sands if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 24347e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 != ST->getBasePtr()) 24357e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 24367e857201f387d004571e6058e2ea709163500f38Duncan Sands ST->getOffset()); 24377e857201f387d004571e6058e2ea709163500f38Duncan Sands 24387e857201f387d004571e6058e2ea709163500f38Duncan Sands switch (TLI.getTruncStoreAction(ST->getValue().getValueType(), StVT)) { 24397e857201f387d004571e6058e2ea709163500f38Duncan Sands default: assert(0 && "This action is not supported yet!"); 24407e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Legal: 24417e857201f387d004571e6058e2ea709163500f38Duncan Sands // If this is an unaligned store and the target doesn't support it, 24427e857201f387d004571e6058e2ea709163500f38Duncan Sands // expand it. 24437e857201f387d004571e6058e2ea709163500f38Duncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 24447e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 2445b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(ST->getMemoryVT())); 24467e857201f387d004571e6058e2ea709163500f38Duncan Sands if (ST->getAlignment() < ABIAlignment) 24477e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 24487e857201f387d004571e6058e2ea709163500f38Duncan Sands TLI); 24497e857201f387d004571e6058e2ea709163500f38Duncan Sands } 24507e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 24517e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Custom: 24527e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = TLI.LowerOperation(Result, DAG); 24537e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 24547e857201f387d004571e6058e2ea709163500f38Duncan Sands case Expand: 24557e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i16 i32 -> STORE i16 24567e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(isTypeLegal(StVT) && "Do not know how to expand this store!"); 24577e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getNode(ISD::TRUNCATE, StVT, Tmp3); 24587e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), SVOffset, 24597e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 24607e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 2461f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 24628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 24633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 24643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2465f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 246695762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 246795762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2468c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 246995762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2470140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2471140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2472c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2473c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2474c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2475456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2476140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2477140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2478456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2479456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2480c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2481c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 2482c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2483c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2484140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2485456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2486140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 24874f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 24884f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 24894f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2490c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 24914f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2492c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 24934f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2494c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2495c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 24964f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2497456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2498140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2499456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2500456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2501456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2502c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2503c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2504c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 2505456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2506140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2507140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2508140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2509c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2510140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2511140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2512140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2513456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2514456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2515456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2516456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2517140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2518140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 25194f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 25204f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 25214f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 25224f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 25234f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 25244f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 25254f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2526140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2527140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2528140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2529140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 253051b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 253151b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2532c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2533f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2534f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2535f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 25366a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 25376a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 25386a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 25396a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2540f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2541f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 25426a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 25436a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2544f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2545f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 254649c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 254749c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 254849c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 25496a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 25506a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2551c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2552f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 25532ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 255447e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 255547e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 255647e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 255747e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 255847e9223e06390897c3834f8c527001df392570ffChris Lattner break; 255947e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 256047e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2561b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 2562ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 2563b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner MVT::getIntVTBitMask(Tmp1.getValueType())^1)) 2564b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 256547e9223e06390897c3834f8c527001df392570ffChris Lattner break; 256647e9223e06390897c3834f8c527001df392570ffChris Lattner } 25673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 25682ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 256955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2570c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2571456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2572b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 257355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2574456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2575456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2576456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2577456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2578456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2579456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 25809373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 25819373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 25829373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 25839373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 25849373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 25859373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 25869373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 25879373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 25889373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 25899373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 259055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 259155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 259255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 259355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 259455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 259541f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 259641f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 259741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 259841f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 2599456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2600456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 260155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2602456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2603456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 260455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 260555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 260655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 260755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 260855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 260955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 26100bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TruncOp != ISD::FP_ROUND) 26110bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 26120bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner else 26130bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result, 26140bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 261555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 261655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 261755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 26183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2619750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2620750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2621750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 26229373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 26239373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2624750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 26259373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2626750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2627750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2628750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2629750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2630750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2631750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2632750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2633750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2634750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2635750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2636750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2637750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2638750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2639750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2640750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2641750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2642750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2643750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 26449373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 26459373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 26469373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 26483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2650750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2651750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2652750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2653750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2654750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2655750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2656750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2657750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2658750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 26593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 26603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2661b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 266273e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2663456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2664456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2665456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2666456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2667456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 26682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2669456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 26702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 26712b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2672456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2673b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2674ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2675ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2676ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2677ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2678ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 267900755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner MVT::ValueType OldVT = NewInTy; OldVT = OldVT; 2680ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2681ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2682ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2683ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2684ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2685ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2686ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2687ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2688ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2689ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2690ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 26911ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2692ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2693ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2694ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2695ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2696ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2697ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2698ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2699ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2700c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2701c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 27022b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2703433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 27045e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2705ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2706b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2707b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2708b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2709b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2710b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2711b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 27122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2713b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2714b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 27153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2716e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 2717e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 2718e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 2719deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 2720e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 2721e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 2722e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 2723e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 2724e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 2725e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2726deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 2727e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2728e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2729deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 2730e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2731e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2732e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 2733edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 2734e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2735272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2736272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2737272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 27386814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 27396814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 27406814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 2741fa9aa2b424d0a7d9f7201f8fdcf5ccfa05db3a80Chris Lattner ExpandOp(Node->getOperand(3), Tmp4, HiPart); 27426814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 27436814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2744e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2745e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2746e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2747e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2748e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2749272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2750272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2751272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2752272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2753272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2754272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2755272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2756272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2757272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2758272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2759e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2760e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2761e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 276255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 27635c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola SDOperand Tmp6; 27645c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola switch (getTypeAction(Node->getOperand(5).getValueType())) { // bool 27655c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Expand: assert(0 && "Cannot expand this yet!"); 27665c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Legal: 27675c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Tmp6 = LegalizeOp(Node->getOperand(5)); 27685c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola break; 27695c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Promote: 27705c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Tmp6 = PromoteOp(Node->getOperand(5)); 27715c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola break; 27725c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola } 27735c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola 277455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 277555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2776456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2777456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2778456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 27795c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case TargetLowering::Legal: { 27805c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola SDOperand Ops[] = { Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6 }; 27815c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Result = DAG.UpdateNodeOperands(Result, Ops, 6); 2782456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2783456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2784456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2785456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 278655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 27875c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola } 278855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2789e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2790e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2791e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2792a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 279347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListTy Args; 279447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 2795e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 27963bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2797e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2798d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp2; Entry.Ty = IntPtrTy; 279947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2800dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2801dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2802dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2803dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2804dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2805dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2806d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp3; Entry.Ty = Type::Int32Ty; Entry.isSExt = true; 280747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2808d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp4; Entry.Ty = IntPtrTy; Entry.isSExt = false; 280947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2810e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2811e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2812e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2813e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2814b25fe8267182662750dcb76a70a20f4b14a5568dAnton Korobeynikov Entry.Ty = IntPtrTy; 2815b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp2; Args.push_back(Entry); 2816b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp3; Args.push_back(Entry); 2817b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp4; Args.push_back(Entry); 2818e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2819e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2820e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2821e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 282245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2823e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 282447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(Tmp1, Type::VoidTy, false, false, CallingConv::C, false, 2825e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2826456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 282755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 282855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2829e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2830e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2831e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 283252d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 28335b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 28345b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 28355b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2836f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 283784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 283884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 283984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 284084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 284184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2842c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2843f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 28442c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 284505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 284605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 284705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2848456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2849456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2850456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2851456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2852456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 285305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2854456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 285505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 285605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 285712f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 285805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2859269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 286005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 286105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 286205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 286305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 286405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 28652c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 28662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 28672c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 28682c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 28692c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 287084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 28712c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 28722c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 28733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 28743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 28753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2876c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2877c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 28783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 28793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 28803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 28813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 28823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 288303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 288403c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 288503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 288601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 288701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 288801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 288901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 2890826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 28913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2892f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2893f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2894f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2895f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2896f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2897f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2898f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2899f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2900f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2901c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2902c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2903456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2904e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2905bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2906456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2907456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2908456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2909456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 291057030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2911bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 2912525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman MVT::ValueType VT = Op.getValueType(); 2913525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2914525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if multiply or divide can be lowered using two-result operations. 2915525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 2916525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MUL) { 2917525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We just need the low half of the multiply; try both the signed 2918525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // and unsigned forms. If the target supports both SMUL_LOHI and 2919525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // UMUL_LOHI, form a preference by checking which forms of plain 2920525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // MULH it supports. 2921525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, VT); 2922525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, VT); 2923525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, VT); 2924525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, VT); 2925525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned OpToUse = 0; 2926525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI && !HasMULHS) { 2927525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2928525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI && !HasMULHU) { 2929525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2930525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasSMUL_LOHI) { 2931525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2932525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI) { 2933525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2934525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2935525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (OpToUse) { 2936525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(OpToUse, VTs, Tmp1, Tmp2).Val, 0); 2937525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2938525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2939525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2940525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHS && 2941525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SMUL_LOHI, VT)) { 2942525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 2943525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2944525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2945525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHU && 2946525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UMUL_LOHI, VT)) { 2947525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 2948525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2949525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2950525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SDIV && 2951525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 2952525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 0); 2953525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2954525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2955525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UDIV && 2956525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 2957525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 0); 2958525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2959525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2960525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2961826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Check to see if we have a libcall for this operator. 2962826695281344e3a4c4d44d73dd155107aafd689bDan Gohman RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2963826695281344e3a4c4d44d73dd155107aafd689bDan Gohman bool isSigned = false; 2964826695281344e3a4c4d44d73dd155107aafd689bDan Gohman switch (Node->getOpcode()) { 2965826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::UDIV: 2966826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::SDIV: 2967826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (VT == MVT::i32) { 2968826695281344e3a4c4d44d73dd155107aafd689bDan Gohman LC = Node->getOpcode() == ISD::UDIV 296956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 2970826695281344e3a4c4d44d73dd155107aafd689bDan Gohman isSigned = Node->getOpcode() == ISD::SDIV; 2971826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 2972826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 2973826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 2974007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::POW_F32, RTLIB::POW_F64, RTLIB::POW_F80, 2975007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POW_PPCF128); 2976826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 2977826695281344e3a4c4d44d73dd155107aafd689bDan Gohman default: break; 2978826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 2979826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (LC != RTLIB::UNKNOWN_LIBCALL) { 2980826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Dummy; 2981826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 298252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 298352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 298452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 2985bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 2986bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 2987bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 2988826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 2989bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 2990bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2991cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 2992cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 2993cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 2994cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 2995cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 2996cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 2997cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 2998cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2999cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 3000cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 3001cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 3002cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 3003cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 3004cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 3005cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 3006cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 3007cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3008cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3009cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3010e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 30113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 3012a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3013e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SMUL_LOHI: 3014e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UMUL_LOHI: 3015e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SDIVREM: 3016e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UDIVREM: 3017e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // These nodes will only be produced by target-specific lowering, so 3018e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // they shouldn't be here if they aren't legal. 3019a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 3020e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman "This must be legal!"); 3021525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3022525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3023525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3024525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3025e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman break; 3026e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman 3027a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 3028a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3029a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 3030a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 3031a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 3032a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 3033a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3034a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 3035a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 3036a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3037a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3038a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3039a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3040a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3041a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3042a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 3043a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 3044a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3045a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 30468f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 3047a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 3048912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 3049636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 3050636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 3051636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 3052636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 3053636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 3054912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 3055636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 30568f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 30578f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 30588f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 30598f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 30608f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 30618f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 30628f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 30638f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 30648f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 30658f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 30668f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 30678f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 30688f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 30698f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 30708f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 30718f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 30728f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 30738f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 30748f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 3075912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType NVT = 3076912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 3077912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 3078912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 3079912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 3080a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3081a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3082912095becac923ff614d7b07728eb345ada67765Evan Cheng } 3083a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3084a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3085551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 3086551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 3087551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3088551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3089551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3090551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3091551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3092551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 3093551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 3094551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3095edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 3096551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 3097551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 3098551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3099551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3100551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 3101551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 3102551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3103551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3104551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 3105551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 3106551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3107551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 3108419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 3109419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 3110419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 3111419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 3112419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 3113419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 3114456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3115456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3116456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 3117419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 3118419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 3119419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 3120419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3121419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 3122419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 3123419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 3124419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 3125419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 3126419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 3127456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 3128419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3129419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3130419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3131419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3132419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 3133c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 3134c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 313501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3136c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3137c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3138456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3139c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3140456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 3141456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3142456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3143456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 314457030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 3145c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3146456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3147456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3148456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3149456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 315057030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 3151525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman case TargetLowering::Expand: { 31526b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 315347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 3154525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman MVT::ValueType VT = Node->getValueType(0); 3155525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3156525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if remainder can be lowered using two-result operations. 3157525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 3158525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SREM && 3159525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 3160525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3161525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3162525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3163525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UREM && 3164525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 3165525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3166525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3167525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3168525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3169525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (MVT::isInteger(VT)) { 3170525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (TLI.getOperationAction(DivOpc, VT) == 317152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 317252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 31736b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 317452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 317552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 317680176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else if (MVT::isVector(VT)) { 317780176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 317852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 3179525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman assert(VT == MVT::i32 && 318052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 318156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 318256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 318352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 318456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 318552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 31860d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman } else { 31870d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman assert(MVT::isFloatingPoint(VT) && 31880d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman "remainder op must have integer or floating-point type"); 318980176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman if (MVT::isVector(VT)) { 319080176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 319180176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else { 319280176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman // Floating point mod -> fmod libcall. 3193007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::REM_F32, RTLIB::REM_F64, 3194007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::REM_F80, RTLIB::REM_PPCF128); 319580176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman SDOperand Dummy; 319680176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 319780176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman false/*sign irrelevant*/, Dummy); 319880176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } 3199c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3200c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3201c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3202525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3203c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3204acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 3205acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3206acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3207acc398c195a697795bff3245943d104eb19192b9Nate Begeman 32085c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 3209acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 3210acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3211456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3212456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3213456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3214acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3215c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3216c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 3217456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 3218456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3219456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3220456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 3221456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 3222456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 3223456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 3224456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3225456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3226acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3227acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 3228466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 3229acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 3230466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 3231acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 3232acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 3233acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 3234acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 3235acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 32368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 32378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 3238acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 3239466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 3240456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 3241acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 3242acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3243acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3244acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3245acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 3246acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 3247acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 3248456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3249456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 3250acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3251acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3252acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 3253acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3254acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 3255acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 3256acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3257acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 3258acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3259456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3260456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3261456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3262acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3263c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 3264c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 3265456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3266456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3267456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3268456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3269acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3270acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3271acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 3272acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 3273466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SVD = cast<SrcValueSDNode>(Node->getOperand(3)); 32748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SrcValueSDNode *SVS = cast<SrcValueSDNode>(Node->getOperand(4)); 3275466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, SVD->getValue(), 3276466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SVD->getOffset()); 32778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, SVS->getValue(), 32788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SVS->getOffset()); 3279acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3280acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3281acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3282acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3283acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 3284acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3285acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3286acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3287acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 3288acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3289456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3290456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3291456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3292acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3293c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3294456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3295456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 3296456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3297456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3298acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3299acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3300acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 3301acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3302acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3303acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3304acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3305acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 3306acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3307acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3308acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3309c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3310c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 3311acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 3312acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3313456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 3314456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3315456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3316456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3317acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3318acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3319acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3320acc398c195a697795bff3245943d104eb19192b9Nate Begeman 332135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 332235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 332335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 332435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3325c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3326c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3327c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 3328c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 3329c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3330c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 3331c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3332c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 3333c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3334c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 3335c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3336c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 3337c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 3338c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3339c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 3340c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 3341c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3342c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 334335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 334435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 3345d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3346d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3347d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3348456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3349456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 3350456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3351c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3352456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3353456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 3354456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 3355456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3356b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned DiffBits = MVT::getSizeInBits(NVT) - MVT::getSizeInBits(OVT); 3357456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3358456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3359456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3360456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3361456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 3362456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3363456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3364456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 3365456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 3366456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3367d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3368d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3369d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3370691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3371691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3372691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3373691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3374691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3375910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 3376691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 3377c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3378910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 3379335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 3380335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3381335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel if (Tmp1.Val) { 3382335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 3383335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 3384910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 3385691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3386691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 3387691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 3388691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3389edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3390edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 3391691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3392691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 3393691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 3394456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3395691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3396691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 3397691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3398691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3399691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 34007cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 3401b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 34027cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 340300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3404910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1); 3405691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3406691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3407456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 340800b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 3409b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3410b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(OVT), NVT)); 3411691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3412691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3413691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3414691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3415691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 3416456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 3417691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3418691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3419691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 342000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 34212c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 34222c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 34232c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 3424da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3425da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3426da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 34272c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 34282c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3429456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3430456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 343159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 343259ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 34332c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 3434c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 343559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 343659ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 343759ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 343859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 34392c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 34402c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 3441456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3442456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 3443456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 34442c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 34452c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 3446456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 3447f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3448f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 34494af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 34504af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 34514af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 34527cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 34534af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 34544af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 3455f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3456f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 3457f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 3458f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 3459f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 3460f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 3461826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3462826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 3463826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(VT)) { 3464826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3465826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3466826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3467826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 346856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3469f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 347056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 3471007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 3472007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 347356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 347456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 3475007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 3476007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 347756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 347856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 3479007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 3480007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 348156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 3482f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3483f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 34842ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 348556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 348656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 3487f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3488f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 34892c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 34902c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 34912c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 34922c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 34936ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 3494826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType VT = Node->getValueType(0); 3495826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3496826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 3497826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(VT)) { 3498826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3499826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3500826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3501826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3502826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // We always lower FPOWI into a libcall. No target support for it yet. 3503007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::POWI_F32, RTLIB::POWI_F64, 3504007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F80, RTLIB::POWI_PPCF128); 35056ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 350656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 350756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 35086ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 35096ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 351035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 351167993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 35121401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 35131401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 35147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::isVector(Op.getOperand(0).getValueType())) { 35157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 35167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 35177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 3518e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Node->getOperand(0).ResNo; 3519e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 3520e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 35217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 35227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 35237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 35247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 35257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 352607a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 35277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 35287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 35297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 35317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 35327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 35337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 35347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 35367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 35377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 35387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 353967993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 354035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 354135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 354235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 354335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 35441401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 35451401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 354635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 354735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 354835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3549c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 355035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 355135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 355235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 355335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3554d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 35552c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3556fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3557fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3558fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 3559fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3560fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3561d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 3562fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 3563fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 3564456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3565456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3566456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3567456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3568456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3569c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3570456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3571456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3572456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3573456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3574456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3575fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 35766269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 35776269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 35786269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 3579456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3580fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 3581fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 3582fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 3583fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 3584fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 35855b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 3586fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3587fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3588fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 3589fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 3590fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3591fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3592c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3593fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 3594c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 3595c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 3596fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 3597c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 3598c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 3599fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3600c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3601c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 3602fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3603fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3604fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3605fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3606fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3607fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3608fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3609fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3610c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3611fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3612fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3613fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3614fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3615fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3616fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3617fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3618fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3619fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3620fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3621fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3622fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3623fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3624fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3625d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3626fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3627fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3628fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3629fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3630f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3631f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 36321618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 36331618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3634456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3635456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3636456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3637456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3638c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3639456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3640456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3641456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3642456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3643456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3644456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3645456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3646456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3647456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 36481618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3649d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3650d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 3651d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 3652d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 3653f4d4832724eb45f94d63e6a7ab932b8f77279587Dale Johannesen unsigned ShiftAmt = MVT::getSizeInBits(NVT)-1; 365473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen const uint64_t zero[] = {0, 0}; 365573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen APFloat apf = APFloat(APInt(MVT::getSizeInBits(VT), 2, zero)); 365673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen uint64_t x = 1ULL << ShiftAmt; 3657ccf596a53e16ea221a9bf8b3874a7d6afa71f1f4Neil Booth (void)apf.convertFromZeroExtendedInteger 3658ccf596a53e16ea221a9bf8b3874a7d6afa71f1f4Neil Booth (&x, MVT::getSizeInBits(NVT), false, APFloat::rmNearestTiesToEven); 365973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen Tmp2 = DAG.getConstantFP(apf, VT); 3660d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 3661d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3662d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3663d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 366401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3665d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3666d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3667d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 3668456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3669456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3670d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3671d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3672d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3673d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 36741618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3675fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 36766af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 36776af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 36786eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen MVT::ValueType OVT = Node->getOperand(0).getValueType(); 3679fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert ppcf128 to i32 36806eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (OVT == MVT::ppcf128 && VT == MVT::i32) { 36810bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getOpcode() == ISD::FP_TO_SINT) { 36820bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, MVT::ppcf128, 36830bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(0), DAG.getValueType(MVT::f64)); 36840bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f64, Result, 36850bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(1)); 36860bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_TO_SINT, VT, Result); 36870bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 3688fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen const uint64_t TwoE31[] = {0x41e0000000000000LL, 0}; 3689fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen APFloat apf = APFloat(APInt(128, 2, TwoE31)); 3690fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Tmp2 = DAG.getConstantFP(apf, OVT); 3691fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X 3692fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // FIXME: generated code sucks. 3693fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Result = DAG.getNode(ISD::SELECT_CC, VT, Node->getOperand(0), Tmp2, 3694fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::ADD, MVT::i32, 3695fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3696fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FSUB, OVT, 3697fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0), Tmp2)), 3698fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getConstant(0x80000000, MVT::i32)), 3699fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3700fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0)), 3701fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getCondCode(ISD::SETGE)); 3702fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen } 37036eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 37046eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 3705fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert f32 / f64 to i32 / i64. 370656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 37076af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 370873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_SINT: { 370973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen if (OVT == MVT::f32) 371056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 371156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 371273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (OVT == MVT::f64) 371356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 371456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 3715161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::f80) { 371673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen assert(VT == MVT::i64); 3717161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_F80_I64; 3718161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 3719161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::ppcf128) { 3720161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(VT == MVT::i64); 3721161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_PPCF128_I64; 372273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 37236af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 372473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 372573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_UINT: { 372673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen if (OVT == MVT::f32) 372756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 372856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 372973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (OVT == MVT::f64) 373056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 373156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 3732161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::f80) { 373373328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen LC = (VT == MVT::i32) 3734161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen ? RTLIB::FPTOUINT_F80_I32 : RTLIB::FPTOUINT_F80_I64; 3735161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 3736161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::ppcf128) { 3737161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(VT == MVT::i64); 3738161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_PPCF128_I64; 373973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 37406af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 374173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 37426af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 37436af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 37446af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 374556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 374656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 37476af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 37486af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3749fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3750c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3751c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3752c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3753fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3754fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3755fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3756d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3757f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case ISD::FP_EXTEND: { 37580bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType DstVT = Op.getValueType(); 37590bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType SrcVT = Op.getOperand(0).getValueType(); 37600bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 37610bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 37620bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 37630bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), SrcVT, DstVT); 37640bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3765f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3766f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3767f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3768f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3769f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3770f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3771f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3772f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3773f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3774f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Tmp1); 3775f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3776f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3777f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 37780bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 37795411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 37800bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType DstVT = Op.getValueType(); 37810bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType SrcVT = Op.getOperand(0).getValueType(); 37820bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 37830bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (SrcVT == MVT::ppcf128) { 3784713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen SDOperand Lo; 3785713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen ExpandOp(Node->getOperand(0), Lo, Result); 37860bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Round it the rest of the way (e.g. to f32) if needed. 3787713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen if (DstVT!=MVT::f64) 3788713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen Result = DAG.getNode(ISD::FP_ROUND, DstVT, Result, Op.getOperand(1)); 37890bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 37905411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 37910bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 37920bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 37930bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), DstVT, DstVT); 37940bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3795849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3796f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3797f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3798f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3799f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 38000bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 3801f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3802f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3803f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 38040bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, Op.getValueType(), Tmp1, 38050bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 3806f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3807f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3808f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 38090bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 381013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 38113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 38123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 38133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3814456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 38153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 38163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3817c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 38183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 381903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 382003c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 382113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3822c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3823c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 382413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 38251713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 38261713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 382713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 382823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 382923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 383003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 383103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 38321713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 383313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 38341713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 383515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 383615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 38371713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 383803c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 38393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 38403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 38410f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 384223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 38430f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 384415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 384545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 384645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 384745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 384855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 384955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 385055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3851c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 385255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 385355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 385445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 385523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 385645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 385745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 385845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 385945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 386027ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 386145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 386245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 386345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 386445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 386545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 38662d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 386745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 386845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 386945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 387045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 387145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 3872a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Result = EmitStackConvert(Node->getOperand(0), ExtraVT, 3873a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Node->getValueType(0)); 387445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 387545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 387645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 387755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 387845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 38790f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 38803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 388136397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 388236397f50343639ce9a25996f2d790c656791ab92Duncan Sands SDOperand Ops[6]; 388336397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 388436397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 388536397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 388636397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 388736397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 388836397f50343639ce9a25996f2d790c656791ab92Duncan Sands assert(Result.Val && "Should always custom lower!"); 3889f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands 3890f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Since trampoline produces two values, make sure to remember that we 3891f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // legalized both of them. 3892f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Tmp1 = LegalizeOp(Result.getValue(1)); 3893f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Result = LegalizeOp(Result); 3894f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 0), Result); 3895f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3896f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands return Op.ResNo ? Tmp1 : Result; 389736397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 3898917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case ISD::FLT_ROUNDS: { 3899917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 3900917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 3901917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 3902917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Custom: 3903917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 3904917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov if (Result.Val) break; 3905917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // Fall Thru 3906917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Legal: 3907917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // If this operation is not supported, lower it to constant 1 3908917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = DAG.getConstant(1, VT); 3909917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov break; 3910917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 3911917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 391241bab0beac2600701af99f63e23a6b65f71468acChris Lattner case ISD::TRAP: { 391366fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 391466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 391566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 391641bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Legal: 391741bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 391841bab0beac2600701af99f63e23a6b65f71468acChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 391941bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 392066fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov case TargetLowering::Custom: 392166fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 392266fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov if (Result.Val) break; 392366fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // Fall Thru 392441bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Expand: 392566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // If this operation is not supported, lower it to 'abort()' call 392641bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 392766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov TargetLowering::ArgListTy Args; 392866fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov std::pair<SDOperand,SDOperand> CallResult = 392941bab0beac2600701af99f63e23a6b65f71468acChris Lattner TLI.LowerCallTo(Tmp1, Type::VoidTy, false, false, CallingConv::C, false, 3930034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner DAG.getExternalSymbol("abort", TLI.getPointerTy()), 3931034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner Args, DAG); 393266fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = CallResult.second; 393366fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov break; 393466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 393541bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 393666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 393745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 3938456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 39394ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 39404ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 39414ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 3942456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 3943456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3944456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 39453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 394645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 394745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 394845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 39493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 39503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 39513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 39528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 39538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 39548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 39558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 395603c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 395703c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 395871c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 395903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 396003c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 396103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 396203c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 396303c8546ec57523970874917854a2fb77b1ff598eChris Lattner 396403c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 396503c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 396603c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 396703c8546ec57523970874917854a2fb77b1ff598eChris Lattner 396840030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 39696fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 397045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 397103c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 3972d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 3973d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 397403c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 3975e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 397639833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 3977e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 397803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 397903c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 3980fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3981fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 3982fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 398303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 3984ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 3985ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 3986ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 3987ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 398803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 398903c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 399003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 399103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 399203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 399303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3994ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 399582fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 3996c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 39977cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 39987cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 399982fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 4000fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 400103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 400203c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 400303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 400403c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 400503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 400603c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 400703c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 400803c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 400903c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4010e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 4011e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 4012e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 4013e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 4014e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 401503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 401679e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 401779e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 4018e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 401903c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 402003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 40218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 40228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 402313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 40248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 40258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 40268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 40278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 4028456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 40298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 40318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 40328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 40338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 40348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 4035595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 403615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 403713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 403823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 403923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 40408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 40428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 404335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 40441401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 40451401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 404635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 404735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 404835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 40498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 40508b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 40518b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 40528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 40538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 40548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 40558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 40560bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getConstantOperandVal(1) == 0) { 40570bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Input is legal? Do an FP_ROUND_INREG. 40580bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 40590bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getValueType(VT)); 40600bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 40610bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Just remove the truncate, it isn't affecting the value. 40620bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, NVT, Node->getOperand(0), 40630bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 40640bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 40658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 40678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 40698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 40708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 40718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 407277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 4073456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 40748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 40768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 40778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 40788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 40798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 408015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 408115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 40828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 408323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 408423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 408577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 408677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 40878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 408977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 409077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 409177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 409277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 409315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 409415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 409577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 40968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 40978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 40995e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 41005e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 41015e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 41025e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 41035e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 41048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 41058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 41068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41080b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 4109456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 41108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 41138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 41148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 41158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 4117d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 4118d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 4119d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 4120d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 4121d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 4122d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 4123c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 4124b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 4125b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 4126d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 4127d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 4128d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4129d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 41308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 41322c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 41332c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 41342c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 41352c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 41362c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 41372c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 41382c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 41392c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 41402c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 41412c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 4142da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 4143da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 4144da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 4145da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4146da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 4147da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4148456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 414915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 415015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4151da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 4152da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 41538b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 41548b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 41558b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 41568b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 41578b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 41588b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 41598b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 41608b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 41618b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 41628b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 41638b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 41648b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 416503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 416603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 416703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 41680f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 41698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 41700f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 41710f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 417201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 41730f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 41740f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 41750f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 41760f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 41770f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 417801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 417901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 418001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 418101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 418201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 418301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 418401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 418501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 418601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 418701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 418801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 418901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 41908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 41918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 419201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 419315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 419415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 41950f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 41960f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 41978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 41988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 41998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 42008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 42028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 420315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 420415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 420515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 420615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 42078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 42088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 42098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 42118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 421215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 421315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 42148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 421501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 421601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 4217a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 421801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 4219ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 42200bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 42210bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp1 = LegalizeOp(Node->getOperand(0)); break; 42220bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp1 = PromoteOp(Node->getOperand(0)); break; 4223ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 4224ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 42250bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 42260bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 42270bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 4228ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 422901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 423001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 423101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 4232a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 423301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 423401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 423501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 42368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 42388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 42398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 42408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 42428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 424323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 424423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 42458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 42468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 42498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4250456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 42518b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 42538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 42548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 425515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 425615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4257456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 42588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 42608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 42618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 426223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4263456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 42648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42650aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 42660aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 4267456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 4268456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 42690aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 42700aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 42710aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 42720aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 4273466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 42740aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 4275466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 42760aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 42770aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 42780aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 42790aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 42800aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 42818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 42828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 42830aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 4284466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 42850aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 42860aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 4287456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 42880aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 42890aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 4290466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 4291466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 429262f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 429362f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 429462f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 429562f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 429655b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 4297b625f2f8960de32bc973092aaee8ac62863006feDan Gohman LD->getMemoryVT(), 4298d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 4299d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 43004c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 4301456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 43024c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 4303466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 430403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 430503c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 430603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 4307456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 430803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 43099373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 43109373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 43119373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 43129373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 4313456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 43149373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 4315d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 4316d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 4317d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 4318d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 4319d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 4320b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 4321b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), 4322d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 4323d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4324fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4325fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4326fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4327456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 4328456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4329fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 4330fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4331456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 4332fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4333fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 4334fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4335fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4336456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 4337d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 4338b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 4339b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 434000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 4341b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), NVT), Tmp1); 4342fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4343fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4344fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 434500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 4346b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 4347b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), NVT)); 4348fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4349fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 4350fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 43517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 43527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 43536595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 43544aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 43554aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 43564aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 435703c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 435803c8546ec57523970874917854a2fb77b1ff598eChris Lattner 435903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 4360456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4361456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 4362456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 4363456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4364456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 436503c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 436603c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 436703c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 43683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 43697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 43707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 43717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 43727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 43737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 43741597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 43751597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 43761597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 43771597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 43787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Idx = Op.getOperand(1); 43791597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 4380e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman MVT::ValueType TVT = Vec.getValueType(); 43817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(TVT); 43821597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 43837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 43847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 43857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 43867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 43877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 43887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Tmp3 = TLI.LowerOperation(Op, DAG); 43897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 43907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 43917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 43927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 43937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 43947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 43957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 43967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 4397844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 43987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 43997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 44007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 44017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 44027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 44037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 44047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 44051597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 44067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 44077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 440855030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman unsigned NumLoElts = 1 << Log2_32(NumElems-1); 44097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 44101597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 44111597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 441255030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman if (CIdx->getValue() < NumLoElts) { 44131597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 44141597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 44151597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 441655030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman Idx = DAG.getConstant(CIdx->getValue() - NumLoElts, 44177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 44181597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 44197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 44201597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 44211597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 44227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 44231597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 44247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 44257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 442685dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Vec.getValueType()); 44277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 44287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 44297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 44307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 44317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 44327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 443390bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 443490bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling if (MVT::getSizeInBits(Idx.getValueType()) > 443590bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling MVT::getSizeInBits(TLI.getPointerTy())) 4436f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::TRUNCATE, TLI.getPointerTy(), Idx); 443790bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling else 4438f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::ZERO_EXTEND, TLI.getPointerTy(), Idx); 443990bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 44407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 44417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 44427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 44431597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 44447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 44451597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 44461597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 44477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 44486595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 44497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDOperand Op) { 44506595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 44516595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 44526595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 44536595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 44546595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 44557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(Vec.getValueType()); 44566595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 44576595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (NumElems == MVT::getVectorNumElements(Op.getValueType())) { 44586595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 44597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 44606595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 44616595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 44626595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 44636595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 44646595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 44656595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 44666595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 44676595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 44686595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 44696595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 44706595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 44716595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 44726595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 44736595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 44747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 44754aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 44764aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 4477750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 4478750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 4479750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 4480750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 4481750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 4482750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 4483750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 4484750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 4485750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 4486638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen SDOperand Tmp1, Tmp2, Tmp3, Result; 4487750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4488750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 4489750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 4490750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 4491750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 4492750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4493750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 4494750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 4495750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 4496750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4497750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 4498750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 4499750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 4500750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 4501750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4502750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 4503750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 4504750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 4505750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 4506750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4507750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 4508750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4509750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4510750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 4511750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 4512750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 4513750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 4514750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 4515750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 4516750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 4517750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4518750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 4519750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4520750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4521750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4522750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4523750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4524750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 4525750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4526750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 4527750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4528750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4529750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4530750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4531750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 45322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 45332b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 45342b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 45352b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 453656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 45372b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 45382b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 45392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 454056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 45412b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45422b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 45432b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 454456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 45452b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45462b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 45472b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 454856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 45492b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45502b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 45512b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 455256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 45532b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45542b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 45552b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 455656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 45572b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45582b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 45592b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 456056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 45612b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45622b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 4563d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 4564d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 45652b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 45665efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 45672b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 456956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 45702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 45712b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 45722b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 457356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 45742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 45752b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 457656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 45772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45782b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 457956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 45802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 458256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 45832b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 45842b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 458556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 45862b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 458756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 458856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 458956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 45902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 45912b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 45922b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 45932b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 45942b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 459556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Tmp1 = ExpandLibCall(TLI.getLibcallName(LC1), 459647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4597b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 45982b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4599d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 460056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 46012b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), Tmp1, Tmp2, CC); 460256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LHS = ExpandLibCall(TLI.getLibcallName(LC2), 460347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4604b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 46052b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHS, Tmp2, 4606d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 46072b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 46082b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 46092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 46102b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 46112b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 46122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 46132b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 46142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4615750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 4616750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 4617638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ExpandOp(RHS, RHSLo, RHSHi); 4618638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 4619638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4620638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (VT==MVT::ppcf128) { 4621638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FIXME: This generated code sucks. We want to generate 4622638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, hi1, hi2 4623638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // BNE crN, L: 4624638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, lo1, lo2 4625638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // The following can be improved, but not that much. 4626638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 4627638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, CCCode); 4628638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp3 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4629638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETNE); 4630638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, CCCode); 4631638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4632638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp3); 4633638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = SDOperand(); 4634638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 4635638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } 4636638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4637638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen switch (CCCode) { 4638750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4639750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4640750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4641750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4642750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4643750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4644750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4645750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4646750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4650750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4651750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4652750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4653750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4654750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4655750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4656750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4657750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4658750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4659750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 4660750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4661750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4662750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4663750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4664750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4665750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4666750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4667750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4668750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 46692e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4670750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4671750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4672750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4673750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4674750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4675750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4676750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4677750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4678750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4679750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4680750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4681750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4682750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4683750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4684750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4685750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4686750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 46872e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 46882e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC, 46892e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng false, DagCombineInfo); 46902e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 46912e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 46922e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 46932e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 46942e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 469585dd3be7354f848231362bd70f6517c0e667f95dChris Lattner Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi,CC); 46962e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 46972e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 46982e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 46992e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if ((Tmp1C && Tmp1C->getValue() == 0) || 47002e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 0 && 47012e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 47022e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 47032e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 1 && 47042e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 47052e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 47062e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 47072e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 47082e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 47092e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 47102e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 47112e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 47122e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 47132e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 47142e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 47152e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result=DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 47162e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 47172e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 47182e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 47192e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 47202e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4721750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4722750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 47232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4724750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4725750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4726750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4727750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 47281401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// EmitStackConvert - Emit a store/load combination to the stack. This stores 47291401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// SrcOp to a stack slot of type SlotVT, truncating it if needed. It then does 47301401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// a load from the stack slot to DestVT, extending it if needed. 47311401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// The resultant code need not be legal. 47321401d15c99b284ead81b8476a6db95328c5f28fdChris LattnerSDOperand SelectionDAGLegalize::EmitStackConvert(SDOperand SrcOp, 47331401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner MVT::ValueType SlotVT, 47341401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner MVT::ValueType DestVT) { 473535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 47361401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(SlotVT); 47371401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 47381401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner unsigned SrcSize = MVT::getSizeInBits(SrcOp.getValueType()); 47391401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner unsigned SlotSize = MVT::getSizeInBits(SlotVT); 47401401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner unsigned DestSize = MVT::getSizeInBits(DestVT); 47411401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 47421401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // Emit a store to the stack slot. Use a truncstore if the input value is 47431401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // later than DestVT. 47441401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand Store; 47451401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SrcSize > SlotSize) 47461401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Store = DAG.getTruncStore(DAG.getEntryNode(), SrcOp, FIPtr, NULL, 0,SlotVT); 47471401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner else { 47481401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SrcSize == SlotSize && "Invalid store"); 47491401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, NULL, 0); 47501401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner } 475135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 475235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 47531401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SlotSize == DestSize) 47541401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 47551401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 47561401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SlotSize < DestSize && "Unknown extension!"); 47571401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner return DAG.getExtLoad(ISD::EXTLOAD, DestVT, Store, FIPtr, NULL, 0, SlotVT); 475835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 475935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 47604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 47614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 47624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 476385dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Node->getValueType(0)); 4764786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 47658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0); 4766466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, NULL, 0); 47674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 47684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 47694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4770ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 477107a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4772ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4773ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4774ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 477587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4776033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4777ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 477887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 4779033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 4780033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 47812eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 47822eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 47832eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 47842eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 47852eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4786033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4787033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 478889a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4789033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4790ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4791033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 479287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 47932eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 47942eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 47952eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 47962eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 47972eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 47982eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4799ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4800ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4801ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4802ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4803ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4804ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4805ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4806ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4807ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4808ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4809ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 48102eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4811ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 4812ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4813ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 4814ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 4815ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4816033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4817ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4818ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 4819f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CV.push_back(ConstantFP::get(OpNTy, V->getValueAPF())); 4820ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 4821ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 4822b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 4823ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4824ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 4825ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4826ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4827ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 48289d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 4829ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 4830466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 4831ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 48322eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 48332eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 48342eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 48352eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 48362eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 483751eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman SDOperand Zero = DAG.getConstant(0, MVT::getVectorElementType(MaskVT)); 48382eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 4839bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4840bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 4841033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 48422eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 48434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 48442eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 48452eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 48462eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 48472eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 48482eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 48492eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 48502eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 48512eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 48522eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 48532eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 48542eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4855033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 4856033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 4857033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 4858033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 4859033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 4860033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 4861033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 4862033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 4863033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4864033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4865033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 4866033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 486751eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MaskVec[*II] = DAG.getConstant(i, MVT::getVectorElementType(MaskVT)); 4868033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 4869033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4870bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4871bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 4872033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4873033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 48744352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 48754352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 4876bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 4877033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4878033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4879033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4880033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 4881033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 4882033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4883033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 4884033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4885033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 4886bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 4887bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 4888033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4889033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4890ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4891ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 4892ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 4893ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 4894ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4895ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 489685dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(VT); 4897ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4898ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 4899bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 4900ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 4901ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 4902ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 4903ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 4904ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 4905ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 4906ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4907841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 4908ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4909ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 4910ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 4911ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4912786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 49138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 4914ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4915ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4916ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 4917ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 4918bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 4919bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 4920ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 4921ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 4922ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4923ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 4924466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 4925ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4926ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 49275b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 49285b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 49295b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 49305b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 49315b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 49325b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 49335b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4934bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 4935f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 4936f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 49375b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 49385b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 49395b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 49405b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4941e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 4942e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 4943e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 4944e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 4945e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 4946e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 4947e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 4948e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 4949f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4950e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 4951f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 4952f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 4953f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 4954f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 4955f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 49567a3c85583d523edb90aa957a02385254957c6e37Chris Lattner // Handle the case when Amt is an immediate. 4957f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 4958f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 4959f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 4960f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 4961f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 4962f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 4963f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 4964f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4965f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4966f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4967f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4968f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4969f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 4970ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4971ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 4972ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 4973f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4974f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 4975f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 4976f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 4977f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 4978f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4979f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4980f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 4981f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4982f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4983f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4984f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4985f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 4986f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4987ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4988ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4989ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 4990f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4991f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4992f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4993f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4994f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 4995f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4996f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4997f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 4998f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4999edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 5000f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5001f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5002edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 5003f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 5004edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5005f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5006ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5007ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5008edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5009ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 5010f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5011f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5012f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5013f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5014f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 5015f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5016f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5017f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5018f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 50190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 50200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 50210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 50220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner uint64_t Mask = NVTBits, KnownZero, KnownOne; 5023ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 50240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 50250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is one, then we can do 50260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 50270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownOne & Mask) { 50280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 50290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 50300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 50310ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 50320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 50330ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 50340ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 50350ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 50360ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 50370ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 50380ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 50390ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 50400ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 50410ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 50420ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 50430ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 50440ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 50450ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 50460ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 50470ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 50480ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 50490ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 50500ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 50510ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 50520ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is zero, then we can do 50530ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 50540ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownZero & Mask) { 50550ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 50560ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 50570ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 50580ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 50590ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 50600ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 50610ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 50620ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 50630ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 50640ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 50650ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 50660ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 50670ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 50680ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 50690ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 50700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 50710ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 50720ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 50730ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 50740ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 50750ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 50760ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 50770ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 50780ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 50790ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 50800ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 50810ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 50820ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 50830ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 50840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 5085f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 5086e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 508777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 50889c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 508977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 509077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 509177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 509277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 509377e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 509447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 50956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 50966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 50976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 50986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 50996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 51006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 510177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 510247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 510377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 510477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 510577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 510647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 5107d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 510847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 510977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 511077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 5111edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 51120d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 511377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 51140d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 511547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(InChain, RetTy, isSigned, false, CallingConv::C, false, 5116adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 51170d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 51186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 51196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 51206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 51216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 512299c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 51230d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 512477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 512577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 5126456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 512799c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 512877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 512999c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 513099c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 513177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 513222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 513322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 513422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 513522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 51364c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 51374c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 513822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 513922cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 514022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 514122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 514222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 514322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 514422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 514522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 514622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 514722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 514822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 514922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 515022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 515122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 515222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 515322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 515422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 515522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 515622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 515722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 515822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 515922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 516022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 51610bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner SDOperand Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 516222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 516322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 516422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 516522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 516647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 516722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 516822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 516922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 517022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 517122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 5172466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 5173118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen else if (MVT::getSizeInBits(DestTy) > MVT::getSizeInBits(MVT::f32)) 51744c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 5175118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, DestTy, DAG.getEntryNode(), 51769e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CPIdx, NULL, 0, MVT::f32); 51779e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else 51789e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Unexpected conversion"); 51799e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen 51804c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng MVT::ValueType SCVT = SignedConv.getValueType(); 51814c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 51824c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 51834c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 51844c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (MVT::getSizeInBits(SCVT) != MVT::getSizeInBits(DestTy)) { 51854c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(SCVT == MVT::i32 && DestTy == MVT::f64); 51864c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BUILD_PAIR, MVT::i64, 51874c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 51884c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 51894c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 51904c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 519122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 519222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 519322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 519422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 519522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 519622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 519722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 519822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 519922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 520022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 520122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 520222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 520322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 520422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 520522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 520622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 520722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 520822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 520922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 521022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 521122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 521222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 521322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 521422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 521556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 521622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 521756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F32; 521822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 521922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 522056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F64; 522122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 52226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 52234c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 52246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 52256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 522656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng return ExpandLibCall(TLI.getLibcallName(LC), Source.Val, isSigned, 522756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng UnusedHiPart); 522822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 522922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 523022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 523122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 523222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 523322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 523422cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 523522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 523622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 523722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 523822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 523922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 524023594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner // Get the stack frame index of a 8 byte buffer. 524123594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner SDOperand StackSlot = DAG.CreateStackTemporary(MVT::f64); 524223594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner 524322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 524422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 524522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 5246408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 5247408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 5248408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 5249408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 5250408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 525122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 525222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 525322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 525422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 525522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 525622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 525722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 525822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 525922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 526022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 5261786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 52628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 526322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 526422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 526522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 52668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 526722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 5268466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 526922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 527022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 527122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 527222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 527322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 527422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 527522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 527622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 527722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 527822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 527922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 528022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 528122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 5282118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) < MVT::getSizeInBits(MVT::f64)) { 52830bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, DestVT, Sub, 52840bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 5285118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) > MVT::getSizeInBits(MVT::f64)) { 5286118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, DestVT, Sub); 528722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 528822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 528922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 529022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 529122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 529222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 529322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 529422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 529522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 52960bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner SDOperand Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 529722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 529822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 529922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 530022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 530122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 530222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 530322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 530422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 530522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 530622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 530722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 530822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 530922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 531022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 531122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 531247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 531322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 531422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 531522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 531622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 531722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 5318466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 531922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 532073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, DestVT, 532122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 5322466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng NULL, 0, MVT::f32)); 532322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 532422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 532522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 532622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 532722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 532822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 532922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 533022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 533122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 533222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 533322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 533422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 533522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 533622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 533722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 533822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 533922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 534022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 534122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 534222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 534322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 534422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 534522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 534622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 534722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 534822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 534922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 535022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 535122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 535222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 535322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 535422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 535522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 535622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 535722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 535822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 535922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 536022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 536122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 536222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 536322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 536422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 536522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 536622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 536722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 536822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 536922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 537022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 537122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 537222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 537322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 537422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 537522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 537622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 537722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 537822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 537922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 538022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 538177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 538277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 538322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 538422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 538522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 538622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 538722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 538822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 538922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 539022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 539122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 539222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 53939c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 539422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 5395e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 539622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 539722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 539822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 539922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 540066de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 540122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 540222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 540322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 540422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 540522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 540622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 540722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 540822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 540922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 541022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 541122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 541222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 5413e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 541422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 541522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 541622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 541722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 541822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 541922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 542022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 542122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 542222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 542322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 5424e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 542522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 54260d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 542722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 5428a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 5429a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 543027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 543127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Okay, we found the operation and type to use. 543227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Operation = DAG.getNode(OpToUse, NewOutTy, LegalOp); 543327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 543427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // If the operation produces an invalid type, it must be custom lowered. Use 543527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // the target lowering hooks to expand it. Just keep the low part of the 543627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // expanded operation, we know that we're truncating anyway. 543727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner if (getTypeAction(NewOutTy) == Expand) { 543827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Operation = SDOperand(TLI.ExpandOperationResult(Operation.Val, DAG), 0); 543927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Operation.Val && "Didn't return anything"); 544027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 544127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 544227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Truncate the result of the extended FP_TO_*INT operation to the desired 544327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // size. 544427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, Operation); 544522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 544613689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 544722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 544822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 544922cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 545022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 545122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 545222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 545322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 545422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 545522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 545622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 545722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 545822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 545922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 546022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 546122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 546222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 546322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 546422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 546522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 546622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 546722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 546822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 546922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 547022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 547122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 547222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 547322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 547422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 547522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 547622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 547722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 547822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 547922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 548022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 548122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 548222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 548322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 548422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 548522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 548622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 548722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 548822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 548922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 549022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 54910d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 549277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 5493edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 549422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 549522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 549622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 549722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 549822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 549922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 550022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 550122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 550222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 550322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 550422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 550522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 550622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 5507b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 550822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 550922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 551022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 551122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 551222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 551322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 551422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 551522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 551622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 551722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 551822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 551922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 552022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 552122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 552222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 552322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 552422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 552522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 552622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 552722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 552822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 552922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 5530b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 553122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 553222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 553322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 553422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 553522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 553622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 553722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 553822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 553922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 554022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 554122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 554222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 554322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 554422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 554522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 554622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 554722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 554822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 554922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 555022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 555122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 5552b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), VT), 555322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 555422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 555522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 555622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 555722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 5558e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 55593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 55603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 55613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 55623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 55633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 55643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 55653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 556671c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 55673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 55683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 55691a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 55707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::isVector(VT)) && 55713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 55723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 55736fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 557440030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 55756fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 55766fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 55776fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 55786fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 55796fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 55803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 55813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 55823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 5583348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 5584348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 55856eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen case ISD::FP_ROUND_INREG: 55866eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (VT == MVT::ppcf128 && 55876eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TLI.getOperationAction(ISD::FP_ROUND_INREG, VT) == 55886eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TargetLowering::Custom) { 5589fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand SrcLo, SrcHi, Src; 5590fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen ExpandOp(Op.getOperand(0), SrcLo, SrcHi); 5591fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Src = DAG.getNode(ISD::BUILD_PAIR, VT, SrcLo, SrcHi); 5592fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand Result = TLI.LowerOperation( 5593fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_ROUND_INREG, VT, Src, Op.getOperand(1)), DAG); 55946eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen assert(Result.Val->getOpcode() == ISD::BUILD_PAIR); 55956eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Lo = Result.Val->getOperand(0); 55966eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Hi = Result.Val->getOperand(1); 55976eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 55986eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 55996eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen // fall through 5600348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 5601e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 560239833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 5603e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 56043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 56053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 560625f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen case ISD::EXTRACT_VECTOR_ELT: 560725f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen assert(VT==MVT::i64 && "Do not know how to expand this operator!"); 560825f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen // ExpandEXTRACT_VECTOR_ELT tolerates invalid result types. 560925f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen Lo = ExpandEXTRACT_VECTOR_ELT(Op); 561025f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen return ExpandOp(Lo, Lo, Hi); 5611fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 5612aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 5613fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 5614fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 5615fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 56163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 56173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 56183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 56193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 56203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 56213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5622004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5623004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5624a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen if (CFP->getValueType(0) == MVT::ppcf128) { 5625a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen APInt api = CFP->getValueAPF().convertToAPInt(); 5626a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[1])), 5627a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5628a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Hi = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[0])), 5629a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5630a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen break; 5631a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen } 5632279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 56339f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 56349f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5635004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5636004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5637d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 56388137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 56398137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 56408137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5641d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 564227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 564327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::MERGE_VALUES: 5644c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner if (Node->getNumValues() == 1) { 5645c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 5646c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner break; 5647c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner } 564827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // FIXME: For now only expand i64,chain = MERGE_VALUES (x, y) 564927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Op.ResNo == 0 && Node->getNumValues() == 2 && 565027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Op.getValue(1).getValueType() == MVT::Other && 565127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner "unhandled MERGE_VALUES"); 565227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 565327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Remember that we legalized the chain. 565427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Op.getOperand(1))); 565527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner break; 565658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 565758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 565858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 56594bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 56604bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 56614bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 56624bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 56634bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 566458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 566558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 566658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 566758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5668d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5669d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5670d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5671d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5672d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5673d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5674d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5675d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5676d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5677edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5678edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 56799b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 56809b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 56819b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5682edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5683edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5684edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 568539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 568639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 56873becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 568839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 568939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 56907cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 56917cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 569239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 569339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 569439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 569539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 569639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 569739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 569839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 569939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 570039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 570139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 57023becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 570339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 570439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 57057cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 57067cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 570739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 570839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 570939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 571039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 571139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 571239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 571339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 5714edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 5715acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 57168137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 57178137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5718acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 5719acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 5720acc398c195a697795bff3245943d104eb19192b9Nate Begeman 5721acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 57228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 5723acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 5724acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 5725acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 5726acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 5727acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 5728acc398c195a697795bff3245943d104eb19192b9Nate Begeman 57293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 5730466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 5731466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 5732466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 5733466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 5734d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 5735d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 5736d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 5737466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5738466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 5739d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5740d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5741004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 5742004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 5743004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 5744004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 57459f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 57469f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 57479f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5748004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5749004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5750466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5751466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 5752466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 5753466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 57540bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 57557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 5756dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 5757d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5758d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5759466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5760466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 5761466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 5762466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5763466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 5764466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5765466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5766466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5767466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (!TLI.isLittleEndian()) 5768466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 5769466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 5770b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType EVT = LD->getMemoryVT(); 5771548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 5772b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen if ((VT == MVT::f64 && EVT == MVT::f32) || 5773b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen (VT == MVT::ppcf128 && (EVT==MVT::f64 || EVT==MVT::f32))) { 5774548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 5775548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 5776d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5777548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 5778548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 5779548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 5780548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 5781548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 5782466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5783466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 5784466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 5785d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5786466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 5787466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 5788d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 5789d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 5790466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5791466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5792466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 5793466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5794466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 5795466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 5796466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 5797466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 5798466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 5799466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 5800466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 5801466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 5802466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 5803466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 5804466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 5805466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 5806466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 5807466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 58083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 58093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 58103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 58113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 58123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 58133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 58143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 58153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 58163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 58173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 58183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 58193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 58203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 5821456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 58223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 58233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 582419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 582519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 5826456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 582719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 582819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 58293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 58303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 58319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 58329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 58339373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 58349373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 583519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 583619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 58379373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 58389373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 583919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 584019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 584119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 58429373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 58439373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 58448137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 584513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 58468137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 584713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 584813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 584913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 58503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 58513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 58523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 58538137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 5854edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 58553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 58563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 58572dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 58588137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 58598137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 58603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 58613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 58628137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 58633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 58643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 58658137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 5866edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 58673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 58683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 58693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 587035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 58714c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 58724c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 58734c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 58744c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 58754c948eb373779718e5be36d7674382b52114bf65Chris Lattner 58764c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 58774c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 58784c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 58794c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 58804c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 58814c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 58824c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 58834c948eb373779718e5be36d7674382b52114bf65Chris Lattner 588435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 5885f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 5886f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 5887f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 5888f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5889f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 5890f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 5891f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 5892f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5893f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 5894f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5895f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 58961a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 589713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 589813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 589919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 590019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 59017b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 59027b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 59037b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 59047b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 59057b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 59067b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 59077b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 59087b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 59091a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 59101a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 59111a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 5912f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 5913f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 59141401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Tmp = EmitStackConvert(Node->getOperand(0), VT, VT); 5915f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 591635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 591735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 591835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 5919f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 592027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::READCYCLECOUNTER: { 5921308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 5922308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 5923308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 592427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Tmp = TLI.LowerOperation(Op, DAG); 592527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Tmp.Val && "Node must be custom expanded!"); 592627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Tmp.getValue(0), Lo, Hi); 5927308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 592827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner LegalizeOp(Tmp.getValue(1))); 5929f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 593027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 5931f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 59324e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 59334e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 593456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 593580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 5936f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 5937f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5938f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 59398137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 59408137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 5941f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 5942d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5943f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 5944f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 594580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 594680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 594707dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 594807dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 594907dffd6af673c73352150583150b242a93694f00Chris Lattner break; 595007dffd6af673c73352150583150b242a93694f00Chris Lattner } 595180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5952d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5953161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 59544e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 595556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F32_I64; 595673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f64) 595756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F64_I64; 5958161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f80) 5959161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_F80_I64; 5960161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 5961161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_PPCF128_I64; 596256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 596356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 59644e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 596556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 5966d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 596756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 596880a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 59698137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 59708137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 59718137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 59728137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 59738137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 59748137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 59758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 59768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 59778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 59788137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 597907dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 598007dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 598107dffd6af673c73352150583150b242a93694f00Chris Lattner break; 598207dffd6af673c73352150583150b242a93694f00Chris Lattner } 598380a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5984d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5985daccea18ca8357b4193ac3ba42a168e650b807e0Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 59864e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 598756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F32_I64; 598872292f07122de9c8bd41b85e94cb2d3235eca0c9Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f64) 598956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F64_I64; 5990161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f80) 5991161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_F80_I64; 5992161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 5993161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_PPCF128_I64; 599456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 599556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 59964e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 599756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 59984e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 599905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 600050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6001348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 600250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 60038137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 600450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 600550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 600650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 600750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 600850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 600950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 601050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 601150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 601250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 601379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 601479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 601579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 601679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 601779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 601879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 601979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 602079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 602179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 602279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 602379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 602479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 602579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 602679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 602779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 602879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 602979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 603079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 6031e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6032348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6033e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 60344759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 60354759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 603605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 603705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 603805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 603905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6040348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 60414759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 60424759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 60434759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6044e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 604556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SHL_I64), Node, 604656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*left shift=unsigned*/, Hi); 6047e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 604805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6049e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 605005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 605150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6052348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 605350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 60548137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 605550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 605650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 605750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 605850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 605950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 606050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 606150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 606250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 606350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6064e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6065348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6066e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 60674759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 60684759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 606905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 607005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 607105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 607205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6073348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 60744759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 60754759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 60764759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6077e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 607856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRA_I64), Node, 607956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng true/*ashr is signed*/, Hi); 6080e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 608105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 608205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 608305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 608450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6085348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 608650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 60878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 608850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 608950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 609050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 609150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 609250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 609350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 609450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 609550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 609650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6097e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6098348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6099e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 61004759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 61014759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 610205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 610305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 610405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 610505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6106348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 61074759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 61084759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 61094759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6110e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 611156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRL_I64), Node, 611256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*lshr is unsigned*/, Hi); 6113e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 611405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6115e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 6116edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 61178137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 61188137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 61198137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 61208137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 61218137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 61228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 61238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 61248137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 61258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 61268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 61278137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 61288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 61298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 61308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 61318137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 613279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 613379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 6134bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 6135bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 6136bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 6137bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 6138551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 613979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6140bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 614179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6142551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 614379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6144bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 614579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6146551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 614784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 61488137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 6149b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6150b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 6151b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 6152b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6153b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 6154b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6155b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6156b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6157b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 6158b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 6159b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6160b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 6161b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6162b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6163b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6164b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 6165b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6166b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6167b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6168b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6169b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6170b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6171b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6172b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6173b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 6174b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 6175b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6176b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 6177b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6178b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6179b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6180b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 6181b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 6182b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6183b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 6184b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6185b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 6186b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6187b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6188b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6189b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6190b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6191c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 61927d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 61937d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 61948829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 61958829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 61968829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 61977d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 61987d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 61997d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 62007d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 62013f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 62023f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 6203525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, NVT); 6204525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, NVT); 6205525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 6206c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 6207c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 6208c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 6209525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned BitSize = MVT::getSizeInBits(RH.getValueType()); 6210525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned LHSSB = DAG.ComputeNumSignBits(Op.getOperand(0)); 6211525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned RHSSB = DAG.ComputeNumSignBits(Op.getOperand(1)); 6212525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // FIXME: generalize this to handle other bit sizes 6213525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (LHSSB == 32 && RHSSB == 32 && 6214525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.MaskedValueIsZero(Op.getOperand(0), 0xFFFFFFFF00000000ULL) && 6215525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.MaskedValueIsZero(Op.getOperand(1), 0xFFFFFFFF00000000ULL)) { 6216525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The inputs are both zero-extended. 6217525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6218525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a umul_lohi. 6219525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::UMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6220525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 6221525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6222525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6223525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU) { 6224525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhu+mul. 6225525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6226525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 6227525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6228525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6229525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6230525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (LHSSB > BitSize && RHSSB > BitSize) { 6231525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The input values are both sign-extended. 6232525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI) { 6233525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a smul_lohi. 6234525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::SMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6235525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 6236525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6237525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6238525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHS) { 6239525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhs+mul. 6240525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6241525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 6242525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6243525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6244525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6245525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6246525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // Lo,Hi = umul LHS, RHS. 6247525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDOperand UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, 6248525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.getVTList(NVT, NVT), LL, RL); 6249525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = UMulLOHI; 6250525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = UMulLOHI.getValue(1); 625156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 625256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 625356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 625456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 6255a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 625656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 62578eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen if (HasMULHU) { 62588eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 62598eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 62608eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 62618eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 62628eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 62638eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 62648eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen break; 62658eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen } 6266c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 62673f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 6268525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // If nothing else, we can make a libcall. 626956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::MUL_I64), Node, 627056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 6271c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 6272c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 627356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 627456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SDIV_I64), Node, true, Hi); 627556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 627656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 627756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UDIV_I64), Node, true, Hi); 627856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 627956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 628056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SREM_I64), Node, true, Hi); 628156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 628256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 628356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UREM_I64), Node, true, Hi); 628456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 62855c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 62861a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 6287007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::ADD_F32, 6288007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::ADD_F64, 6289007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::ADD_F80, 6290007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::ADD_PPCF128)), 629156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 62921a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 62931a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 6294007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::SUB_F32, 6295007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SUB_F64, 6296007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SUB_F80, 6297007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SUB_PPCF128)), 629856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 62991a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 63001a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 6301007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::MUL_F32, 6302007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::MUL_F64, 6303007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::MUL_F80, 6304007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::MUL_PPCF128)), 630556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 63061a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 63071a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 6308007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::DIV_F32, 6309007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::DIV_F64, 6310007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::DIV_F80, 6311007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::DIV_PPCF128)), 631256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 63131a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 63141a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 6315ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (VT == MVT::ppcf128) { 6316ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen assert(Node->getOperand(0).getValueType()==MVT::f32 || 6317ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0).getValueType()==MVT::f64); 6318ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen const uint64_t zero = 0; 6319ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (Node->getOperand(0).getValueType()==MVT::f32) 6320ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::FP_EXTEND, MVT::f64, Node->getOperand(0)); 6321ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen else 6322ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = Node->getOperand(0); 6323ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6324ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6325ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 632656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi); 63271a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 63281a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 632956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPROUND_F64_F32),Node,true,Hi); 63301a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6331c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio case ISD::FPOWI: 6332007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::POWI_F32, 6333007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F64, 6334007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F80, 6335007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_PPCF128)), 6336c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Node, false, Hi); 6337c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio break; 633898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 633998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 634098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 634156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 634298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 634356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 6344007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 6345007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 634656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 634756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 6348007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 6349007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 635056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 635156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 6352007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 6353007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 635456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 635598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 635698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 635756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, false, Hi); 635898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 635998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6360966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 6361f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6362f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen SDOperand Tmp; 6363f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Tmp); 6364f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FABS, NVT, Tmp); 6365f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen // lo = hi==fabs(hi) ? lo : -lo; 6366f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::SELECT_CC, NVT, Hi, Tmp, 6367f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo, DAG.getNode(ISD::FNEG, NVT, Lo), 6368f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen DAG.getCondCode(ISD::SETEQ)); 6369f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6370f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6371966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6372966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 6373966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 6374966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6375966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6376966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 6377966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6378966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6379966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6380966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6381966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 6382f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6383f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Hi); 6384f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::FNEG, MVT::f64, Lo); 6385f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FNEG, MVT::f64, Hi); 6386f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6387f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6388966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6389966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 6390966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 6391966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6392966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6393966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 6394966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6395966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6396966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6397966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6398912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 6399912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 6400912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 6401912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 6402912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 6403912095becac923ff614d7b07728eb345ada67765Evan Cheng } 64047df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 64057df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 64067df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 64077df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng MVT::ValueType SrcVT = Node->getOperand(0).getValueType(); 64086e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT != MVT::i64) { 6409ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen static uint64_t zero = 0; 6410ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (isSigned) { 6411ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6412ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6413ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6414ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } else { 6415ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen static uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 }; 6416ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6417ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6418ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6419ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 64206e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // X>=0 ? {(f64)x, 0} : {(f64)x, 0} + 2^32 6421ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 6422ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstant(0, MVT::i32), 6423ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 6424ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstantFP( 6425ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen APFloat(APInt(128, 2, TwoE32)), 6426ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen MVT::ppcf128)), 6427ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi, 6428ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getCondCode(ISD::SETLT)), 6429ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo, Hi); 6430ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6431ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6432ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 64336e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT == MVT::i64 && !isSigned) { 64346e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // si64->ppcf128 done by libcall, below 64356e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen static uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 }; 64366e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SINT_TO_FP, MVT::ppcf128, Node->getOperand(0)), 64376e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 64386e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 64396e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // x>=0 ? (ppcf128)(i64)x : (ppcf128)(i64)x + 2^64 64406e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 64416e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstant(0, MVT::i64), 64426e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 64436e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstantFP( 64446e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen APFloat(APInt(128, 2, TwoE64)), 64456e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen MVT::ppcf128)), 64466e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi, 64476e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getCondCode(ISD::SETLT)), 64486e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 64496e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen break; 64506e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen } 645164f638df568f2849b485cc50836efc734e367fc7Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 64527df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) { 64537df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 645456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F32 : RTLIB::UINTTOFP_I64_F32; 645573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (VT == MVT::f64) 645656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F64 : RTLIB::UINTTOFP_I64_F64; 6457161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (VT == MVT::f80) { 6458161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(isSigned); 6459161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::SINTTOFP_I64_F80; 6460161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 6461161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (VT == MVT::ppcf128) { 646273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen assert(isSigned); 6463161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::SINTTOFP_I64_PPCF128; 646473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 64657df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } else { 64667df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 646756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 64687df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 646956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 64707df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 64717df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 64727df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng // Promote the operand if needed. 64737df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (getTypeAction(SrcVT) == Promote) { 64747df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng SDOperand Tmp = PromoteOp(Node->getOperand(0)); 64757df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Tmp = isSigned 64767df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 64777df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng DAG.getValueType(SrcVT)) 64787df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng : DAG.getZeroExtendInReg(Tmp, SrcVT); 64797df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 64807df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 64814c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng 64824c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng const char *LibCall = TLI.getLibcallName(LC); 64834c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (LibCall) 64844c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Hi); 64854c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng else { 64864c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 64874c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Node->getOperand(0)); 64884c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 64894c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng ExpandOp(Lo, Lo, Hi); 64904c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 64917df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 64927df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 649398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 64943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 649583397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 649683397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 649783397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 649883397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 649913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 650013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 650113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 650283397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 650305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 650405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 650540030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 650605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 65073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 65083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 65097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 65107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 6511c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 6512c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 65137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && "Cannot split non-vector type!"); 6514c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 6515e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman unsigned NumElements = MVT::getVectorNumElements(Op.getValueType()); 6516c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 65175db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6518e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman MVT::ValueType NewEltVT = MVT::getVectorElementType(Op.getValueType()); 65195db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 65205db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Lo = 1 << Log2_32(NumElements-1); 65215db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Hi = NumElements - NewNumElts_Lo; 65225db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 65235db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::ValueType NewVT_Lo = MVT::getVectorType(NewEltVT, NewNumElts_Lo); 65245db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::ValueType NewVT_Hi = MVT::getVectorType(NewEltVT, NewNumElts_Hi); 65255db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6526c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 6527c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 6528c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 6529c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 6530c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 6531c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 6532c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 6533c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6534c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6535c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 6536e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 6537e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 653839833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 6539e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6540e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 6541daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner case ISD::UNDEF: 6542daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Lo = DAG.getNode(ISD::UNDEF, NewVT_Lo); 6543daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Hi = DAG.getNode(ISD::UNDEF, NewVT_Hi); 6544daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner break; 65457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 65467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 65477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 65487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 65499fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman case ISD::INSERT_VECTOR_ELT: { 65509fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman SplitVectorOp(Node->getOperand(0), Lo, Hi); 65519fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman unsigned Index = cast<ConstantSDNode>(Node->getOperand(2))->getValue(); 65529fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman SDOperand ScalarOp = Node->getOperand(1); 65535db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman if (Index < NewNumElts_Lo) 65545db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Lo, Lo, ScalarOp, 65559fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman DAG.getConstant(Index, TLI.getPointerTy())); 65569fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman else 65575db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Hi, Hi, ScalarOp, 65585db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman DAG.getConstant(Index - NewNumElts_Lo, 65595db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman TLI.getPointerTy())); 65609fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman break; 65619fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman } 65626c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner case ISD::VECTOR_SHUFFLE: { 65636c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Build the low part. 65646c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand Mask = Node->getOperand(2); 65656c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SmallVector<SDOperand, 8> Ops; 65666c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 65676c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 65686c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Insert all of the elements from the input that are needed. We use 65696c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // buildvector of extractelement here because the input vectors will have 65706c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // to be legalized, so this makes the code simpler. 65716c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = 0; i != NewNumElts_Lo; ++i) { 65726c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner unsigned Idx = cast<ConstantSDNode>(Mask.getOperand(i))->getValue(); 65736c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 65746c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 65756c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 65766c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 65776c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 65786c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 65796c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 65806c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 65816c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 65826c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.clear(); 65836c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 65846c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = NewNumElts_Lo; i != NumElements; ++i) { 65856c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner unsigned Idx = cast<ConstantSDNode>(Mask.getOperand(i))->getValue(); 65866c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 65876c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 65886c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 65896c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 65906c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 65916c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 65926c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 65936c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 65946c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 65956c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner break; 65966c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 65977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 6598bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 65995db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Node->op_begin()+NewNumElts_Lo); 66005db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &LoOps[0], LoOps.size()); 6601c7029805ef35ce9805931067b841e6af11db382eChris Lattner 66025db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts_Lo, 66037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 66045db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &HiOps[0], HiOps.size()); 6605c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6606c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 66077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 66085db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman // FIXME: Handle non-power-of-two vectors? 66097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 66107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 66117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 66127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 66137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 66147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 66157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 66165db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Lo, &LoOps[0], LoOps.size()); 66176595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 66187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 66197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 66205db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Hi, &HiOps[0], HiOps.size()); 66217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 66226595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 66236595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 6624c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman case ISD::SELECT: { 6625c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand Cond = Node->getOperand(0); 6626c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6627c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand LL, LH, RL, RH; 6628c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(1), LL, LH); 6629c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(2), RL, RH); 6630c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6631c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman if (MVT::isVector(Cond.getValueType())) { 6632c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a vector merge. 6633c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand CL, CH; 6634c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Cond, CL, CH); 66355db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, CL, LL, RL); 66365db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, CH, LH, RH); 6637c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } else { 6638c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a simple select with vector operands. 66395db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, Cond, LL, RL); 66405db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, Cond, LH, RH); 6641c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 6642c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman break; 6643c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 66447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 66457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 66467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 66477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 66487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 66497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 66507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 66517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 66527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 6653826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 66547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 66557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 6656089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::XOR: 6657089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::UREM: 6658089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::SREM: 6659089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::FREM: { 6660c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 6661c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 6662c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 6663c7029805ef35ce9805931067b841e6af11db382eChris Lattner 66645db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, LL, RL); 66655db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, LH, RH); 6666c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6667c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6668826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOWI: { 6669826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6670826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6671826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 66725db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L, Node->getOperand(1)); 66735db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H, Node->getOperand(1)); 6674826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6675826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 6676826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTTZ: 6677826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTLZ: 6678826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTPOP: 6679826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FNEG: 6680826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FABS: 6681826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSQRT: 6682826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSIN: 6683b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FCOS: 6684b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_SINT: 6685b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_UINT: 6686b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::SINT_TO_FP: 6687b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::UINT_TO_FP: { 6688826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6689826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6690826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 66915db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L); 66925db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H); 6693826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6694826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 66957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 66967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 66977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LD->getChain(); 66987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LD->getBasePtr(); 66997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 67007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 67017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 67027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 67037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 67045db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getLoad(NewVT_Lo, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 67055db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned IncrementSize = NewNumElts_Lo * MVT::getSizeInBits(NewEltVT)/8; 6706c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 67070bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 67087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 6709dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 67105db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getLoad(NewVT_Hi, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 6711c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6712c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 6713c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 6714c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 6715c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 6716c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6717c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6718c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 6719c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6720c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 67217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 67227692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 67237692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 672410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand InOp = Node->getOperand(0); 672510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman if (!MVT::isVector(InOp.getValueType()) || 672610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman MVT::getVectorNumElements(InOp.getValueType()) == 1) { 672710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 672810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 672910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 673085dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand Ptr = DAG.CreateStackTemporary(InOp.getValueType()); 67317692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 6732786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 673310a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman InOp, Ptr, NULL, 0); 673410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, NULL, 0); 67357692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 673610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 673710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 67385db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT_Lo, Lo); 67395db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT_Hi, Hi); 674010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 67417692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 6742c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6743c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6744c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 674540030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 6746c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 674710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 6748c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 6749c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6750c7029805ef35ce9805931067b841e6af11db382eChris Lattner 675189b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 675289b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 675389b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 67547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) { 67557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && 67567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "Bad ScalarizeVectorOp invocation!"); 6757c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 67587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorElementType(Op.getValueType()); 67597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::getVectorNumElements(Op.getValueType()) == 1); 6760c7029805ef35ce9805931067b841e6af11db382eChris Lattner 67617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 67627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand>::iterator I = ScalarizedNodes.find(Op); 67637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 6764c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6765c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 6766c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 67672332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 6768e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 676939833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 6770e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 67717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 67727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 67737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 67747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 67757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 67767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 67777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 67787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 67797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 67807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 67817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 67827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 67837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 6784826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 67857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 67867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 67877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 67887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 6789c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 67907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 67917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 6792c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 67937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 67947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 67957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 67967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 67977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 67987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 67997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 68007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 68017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 68029e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman case ISD::FPOWI: 68039e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Result = DAG.getNode(Node->getOpcode(), 68049e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman NewVT, 68059e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 68069e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Node->getOperand(1)); 68079e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman break; 68087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 68097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 68107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 68117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 6812c7029805ef35ce9805931067b841e6af11db382eChris Lattner 68137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 68147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 68157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, 68167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LD->isVolatile(), LD->getAlignment()); 68177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 6818c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6819c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 6820c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6821c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 68227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 68237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 68247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 68257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 68267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 68277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 6828c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 68297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 68306595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 68316595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 68326595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 68336595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 68347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 68357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 68367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand EltNum = Node->getOperand(2).getOperand(0); 68377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 68387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 68397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 68407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 68412332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 68427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 68437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 68447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 68456595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 68466595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 68477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: 68487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 6849db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 68507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 6851b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 68527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 68537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 6854b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 6855c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6856c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6857c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 6858c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 68597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 68607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 6861c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 6862c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 6863c7029805ef35ce9805931067b841e6af11db382eChris Lattner 68643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 68653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 68663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 68679c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 68685e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 68695e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 68703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 68713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 6872456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 68733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 68743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6875