LegalizeDAG.cpp revision 4ee451de366474b9c228b4e5fa573795a715216d
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" 1861bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng#include "llvm/Target/TargetFrameInfo.h" 193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Target/TargetLowering.h" 20e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner#include "llvm/Target/TargetData.h" 213d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng#include "llvm/Target/TargetMachine.h" 220f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner#include "llvm/Target/TargetOptions.h" 23adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 25c10305743c313558405079452138f03124e87581Reid Spencer#include "llvm/DerivedTypes.h" 265e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 27a4f0b3a084d120cfc5b5bb06f64b222f5cb72740Chris Lattner#include "llvm/Support/Compiler.h" 28dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands#include "llvm/Support/MathExtras.h" 297971514755a08ec156a1b9c0f7f05d67919c56b7Chris Lattner#include "llvm/ADT/DenseMap.h" 30f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner#include "llvm/ADT/SmallVector.h" 3100755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner#include "llvm/ADT/SmallPtrSet.h" 32033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng#include <map> 333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 355e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#ifndef NDEBUG 365e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic cl::opt<bool> 375e46a19ec848cd4fc9649bd5170c43d9e657668cChris LattnerViewLegalizeDAGs("view-legalize-dags", cl::Hidden, 385e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner cl::desc("Pop up a window to show dags before legalize")); 395e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#else 405e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic const bool ViewLegalizeDAGs = 0; 415e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#endif 425e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 56360e8200ec544a3c877ff74b48f445140ac9bbd6Chris Lattnerclass VISIBILITY_HIDDEN SelectionDAGLegalize { 573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand LastCALLSEQ_END; 666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 7368a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 7468a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 75d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 8168a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 86718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand> LegalizedNodes; 873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8803c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 8903c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 9003c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 9140030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand> PromotedNodes; 9203c8546ec57523970874917854a2fb77b1ff598eChris Lattner 93c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 94c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 95c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 9640030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes; 973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 98c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 99c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 100c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 101c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes; 102c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// ScalarizedNodes - For nodes that need to be converted from vector types to 1047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// scalar types, this contains the mapping of ones we have already 105c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 1067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand> ScalarizedNodes; 107c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1088afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner void AddLegalizedOperand(SDOperand From, SDOperand To) { 10969a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 11069a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11169a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 11269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 1138afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 11403c8546ec57523970874917854a2fb77b1ff598eChris Lattner void AddPromotedOperand(SDOperand From, SDOperand To) { 11540030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = PromotedNodes.insert(std::make_pair(From, To)); 11603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 11769a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11869a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 11903c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1208afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1239c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner SelectionDAGLegalize(SelectionDAG &DAG); 1243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 1283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizeAction getTypeAction(MVT::ValueType VT) const { 12968a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 1343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isTypeLegal(MVT::ValueType VT) const { 1353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 140456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 1417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// HandleOp - Legalize, Promote, or Expand the specified operand as 142c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 143c7029805ef35ce9805931067b841e6af11db382eChris Lattner void HandleOp(SDOperand Op); 144c7029805ef35ce9805931067b841e6af11db382eChris Lattner 145c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 146c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 147c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 1483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LegalizeOp(SDOperand O); 149c7029805ef35ce9805931067b841e6af11db382eChris Lattner 150826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// UnrollVectorOp - We know that the given vector has a legal type, however 151826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// the operation it performs is not legal and is an operation that we have 152826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// no way of lowering. "Unroll" the vector, splitting out the scalars and 153826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// operating on each element individually. 154826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand UnrollVectorOp(SDOperand O); 155826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 156c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 157c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 158c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 159c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 160c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 16103c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 163c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 164c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 165c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 166c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 167c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 170c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// SplitVectorOp - Given an operand of vector type, break it down into 1727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// two smaller values. 173c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 174c7029805ef35ce9805931067b841e6af11db382eChris Lattner 17589b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// ScalarizeVectorOp - Given an operand of single-element vector type 17689b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// (e.g. v1f32), convert it into the equivalent operation that returns a 17789b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// scalar (e.g. f32) value. 1787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ScalarizeVectorOp(SDOperand O); 179c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1804352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1814352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1824352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1844352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1884352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 1894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDNode *isShuffleLegal(MVT::ValueType VT, SDOperand Mask) const; 1904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 191c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 19200755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 1936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 194750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 195750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 19647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer SDOperand ExpandLibCall(const char *Name, SDNode *Node, bool isSigned, 19777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 19877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 19977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 200cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 20135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand ExpandBIT_CONVERT(MVT::ValueType DestVT, SDOperand SrcOp); 202ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 2034352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 2046269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 2056269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 2066269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 2075a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 2085a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 2091618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 2101618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 21100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 212456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 213456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 214e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 215e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2165b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2175b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 218b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ExpandEXTRACT_SUBVECTOR(SDOperand Op); 2204aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2211597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 2223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand getIntPtrConstant(uint64_t Val) { 2233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return DAG.getConstant(Val, TLI.getPointerTy()); 2243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 2344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDNode *SelectionDAGLegalize::isShuffleLegal(MVT::ValueType VT, 2354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand Mask) const { 2364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::getVectorNumElements(NVT) / MVT::getVectorNumElements(VT); 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 252bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 264bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2724352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2739c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2749c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2759c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2766a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 280e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// ComputeTopDownOrdering - Compute a top-down ordering of the dag, where Order 281e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// contains all of a nodes operands before it contains the node. 282e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattnerstatic void ComputeTopDownOrdering(SelectionDAG &DAG, 283e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SmallVector<SDNode*, 64> &Order) { 284e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 285e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner DenseMap<SDNode*, unsigned> Visited; 286e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner std::vector<SDNode*> Worklist; 287e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.reserve(128); 28832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 289e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 290e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // entry node) that have no operands. 291e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 292e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner E = DAG.allnodes_end(); I != E; ++I) { 293e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (I->getNumOperands() == 0) { 294e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Visited[I] = 0 - 1U; 295e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(I); 296e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 29732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 29832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 299e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner while (!Worklist.empty()) { 300e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SDNode *N = Worklist.back(); 301e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.pop_back(); 302e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 303e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (++Visited[N] != N->getNumOperands()) 304e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner continue; // Haven't visited all operands yet 305e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 306e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.push_back(N); 307e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 308e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Now that we have N in, add anything that uses it if all of their operands 309e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // are now done. 310e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); 311e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner UI != E; ++UI) 312e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(*UI); 313e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 314e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 315e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner assert(Order.size() == Visited.size() && 316e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.size() == 317e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 318e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner "Error: DAG is cyclic!"); 31932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 32032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3211618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 326ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 327ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 328ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 329ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 33032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 33132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 3320ed44170752b85c3dd3bbf95459dd2668864f5ecChris Lattner SmallVector<SDNode*, 64> Order; 333e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner ComputeTopDownOrdering(DAG, Order); 334ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 335c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 336c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 33732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 33832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 34032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 34132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 34571c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 346c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 3477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizedNodes.clear(); 3483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 350190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 408c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 409c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 410c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 411c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 412c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 41300755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 4146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 416c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 417c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 418c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 419c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 439c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 441c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 442c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 443c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 444c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 44780edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// HandleOp - Legalize, Promote, or Expand the specified operand as 452c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 453c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 4547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType VT = Op.getValueType(); 4557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (getTypeAction(VT)) { 456c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 4577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Legal: (void)LegalizeOp(Op); break; 4587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Promote: (void)PromoteOp(Op); break; 459c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 4607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(VT)) { 4617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal scalar, expand it into its two component 4627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // pieces. 463c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 46409ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) 46509ec1b058331aadb29a348091611d23892b5c492Chris Lattner break; // Allow illegal target nodes. 466c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 4677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::getVectorNumElements(VT) == 1) { 4687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal single element vector, convert it to a 4697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // scalar operation. 4707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman (void)ScalarizeVectorOp(Op); 471c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Otherwise, this is an illegal multiple element vector. 4737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Split it in half and legalize both parts. 4747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand X, Y; 4757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SplitVectorOp(Op, X, Y); 476c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 477c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 478c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 479c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4819f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 4829f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 4839f87788040786b1bc6530763e4cf7e105bfb2924Evan Chengstatic SDOperand ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 484279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 485004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 486004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 487004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 488004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 489004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 490004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // double. 491004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng MVT::ValueType VT = CFP->getValueType(0); 492004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool isDouble = VT == MVT::f64; 493118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen ConstantFP *LLVMC = ConstantFP::get(MVT::getTypeForValueType(VT), 4949e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CFP->getValueAPF()); 4959f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 4969e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (VT!=MVT::f64 && VT!=MVT::f32) 4979e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Invalid type expansion"); 4989d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen return DAG.getConstant(LLVMC->getValueAPF().convertToAPInt().getZExtValue(), 4999d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen isDouble ? MVT::i64 : MVT::i32); 500279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 501279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 502f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen if (isDouble && CFP->isValueValidForType(MVT::f32, CFP->getValueAPF()) && 503004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Only do this if the target has a native EXTLOAD instruction from f32. 5049e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // Do not try to be clever about long doubles (so far) 505004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, MVT::f32)) { 506004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC,Type::FloatTy)); 507004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng VT = MVT::f32; 508004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Extend = true; 509004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 510004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 511004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 512004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (Extend) { 513004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 514004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng CPIdx, NULL, 0, MVT::f32); 515004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } else { 516004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 517004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 518004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 519004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 521912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 522912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 523912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 524912095becac923ff614d7b07728eb345ada67765Evan ChengSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT::ValueType NVT, 525912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 526068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng MVT::ValueType VT = Node->getValueType(0); 527912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcVT = Node->getOperand(1).getValueType(); 5287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 5297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 530912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 531068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 532912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 533068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 534912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 535912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 536068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 537912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 538068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 539912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 540912095becac923ff614d7b07728eb345ada67765Evan Cheng int SizeDiff = MVT::getSizeInBits(SrcNVT) - MVT::getSizeInBits(NVT); 541912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 542912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 543912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 544912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 545912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 546912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 547068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 548068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 549068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 550068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 551068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 552068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 553912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 554068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 555068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 556068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 557912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 558912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 559912095becac923ff614d7b07728eb345ada67765Evan Cheng} 560912095becac923ff614d7b07728eb345ada67765Evan Cheng 561f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 562f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 563f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 564f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 565f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = ST->getChain(); 566f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = ST->getBasePtr(); 567f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Val = ST->getValue(); 568f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = Val.getValueType(); 569907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int Alignment = ST->getAlignment(); 570907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int SVOffset = ST->getSrcValueOffset(); 571907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (MVT::isFloatingPoint(ST->getStoredVT())) { 572907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a bitconvert of the value to the integer type of the 573907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // same size, then a (misaligned) int store. 574907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 575907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (VT==MVT::f64) 576907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 577907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (VT==MVT::f32) 578907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 579907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 580907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(0 && "Unaligned load of unsupported floating point type"); 581907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 582907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, intVT, Val); 583907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getStore(Chain, Result, Ptr, ST->getSrcValue(), 584907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, ST->isVolatile(), Alignment); 585907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 586907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(MVT::isInteger(ST->getStoredVT()) && 587907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen "Unaligned store of unknown type."); 588f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 589f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType NewStoredVT = ST->getStoredVT() - 1; 590f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewStoredVT); 591f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 592f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 593f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Divide the stored value in two parts. 594f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 595f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo = Val; 596f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Hi = DAG.getNode(ISD::SRL, VT, Val, ShiftAmount); 597f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 598f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Store the two parts 599f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Store1, Store2; 600f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store1 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Lo:Hi, Ptr, 601f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset, NewStoredVT, 602f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->isVolatile(), Alignment); 603f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 604f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 605dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 606f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store2 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Hi:Lo, Ptr, 607f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset + IncrementSize, 608f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewStoredVT, ST->isVolatile(), Alignment); 609f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 610f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::TokenFactor, MVT::Other, Store1, Store2); 611f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 612f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 613f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedLoad - Expands an unaligned load to 2 half-size loads. 614f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 615f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedLoad(LoadSDNode *LD, SelectionDAG &DAG, 616f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 617f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int SVOffset = LD->getSrcValueOffset(); 618f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = LD->getChain(); 619f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = LD->getBasePtr(); 620f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = LD->getValueType(0); 621907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType LoadedVT = LD->getLoadedVT(); 622e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner if (MVT::isFloatingPoint(VT) && !MVT::isVector(VT)) { 623907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a (misaligned) integer load of the same size, 624907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // then bitconvert to floating point. 625907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 626e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner if (LoadedVT == MVT::f64) 627907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 628e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner else if (LoadedVT == MVT::f32) 629907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 630907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 631907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(0 && "Unaligned load of unsupported floating point type"); 632907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 633907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand newLoad = DAG.getLoad(intVT, Chain, Ptr, LD->getSrcValue(), 634907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, LD->isVolatile(), 635907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen LD->getAlignment()); 636907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, LoadedVT, newLoad); 637907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (LoadedVT != VT) 638907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, VT, Result); 639907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 640907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Ops[] = { Result, Chain }; 641907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 642907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Ops, 2); 643907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 644e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner assert((MVT::isInteger(LoadedVT) || MVT::isVector(LoadedVT)) && 645e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner "Unaligned load of unsupported type."); 646e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 647e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner // Compute the new VT that is half the size of the old one. We either have an 648e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner // integer MVT or we have a vector MVT. 649e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned NumBits = MVT::getSizeInBits(LoadedVT); 650e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner MVT::ValueType NewLoadedVT; 651e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner if (!MVT::isVector(LoadedVT)) { 652e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner NewLoadedVT = MVT::getIntegerType(NumBits/2); 653e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner } else { 654e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner // FIXME: This is not right for <1 x anything> it is also not right for 655e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner // non-power-of-two vectors. 656e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner NewLoadedVT = MVT::getVectorType(MVT::getVectorElementType(LoadedVT), 657e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner MVT::getVectorNumElements(LoadedVT)/2); 658e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner } 659e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner NumBits >>= 1; 660e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 661e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned Alignment = LD->getAlignment(); 662e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned IncrementSize = NumBits / 8; 663f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ISD::LoadExtType HiExtType = LD->getExtensionType(); 664f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 665f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. 666f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (HiExtType == ISD::NON_EXTLOAD) 667f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio HiExtType = ISD::ZEXTLOAD; 668f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 669f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Load the value in two parts 670f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo, Hi; 671f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (TLI.isLittleEndian()) { 672f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 673f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset, NewLoadedVT, LD->isVolatile(), Alignment); 674f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 675f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 676f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), 677f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 678dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 679f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 680f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), SVOffset, 681f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewLoadedVT,LD->isVolatile(), Alignment); 682f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 683f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 684f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 685f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 686dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 687f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 688f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 689f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // aggregate the two parts 690f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 691f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Result = DAG.getNode(ISD::SHL, VT, Hi, ShiftAmount); 692f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = DAG.getNode(ISD::OR, VT, Result, Lo); 693f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 694f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 695f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi.getValue(1)); 696f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 697f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ops[] = { Result, TF }; 698f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), Ops, 2); 699f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 700912095becac923ff614d7b07728eb345ada67765Evan Cheng 701826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// UnrollVectorOp - We know that the given vector has a legal type, however 702826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// the operation it performs is not legal and is an operation that we have 703826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// no way of lowering. "Unroll" the vector, splitting out the scalars and 704826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// operating on each element individually. 705826695281344e3a4c4d44d73dd155107aafd689bDan GohmanSDOperand SelectionDAGLegalize::UnrollVectorOp(SDOperand Op) { 706826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType VT = Op.getValueType(); 707826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(isTypeLegal(VT) && 708826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Caller should expand or promote operands that are not legal!"); 709826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(Op.Val->getNumValues() == 1 && 710826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Can't unroll a vector with multiple results!"); 711826695281344e3a4c4d44d73dd155107aafd689bDan Gohman unsigned NE = MVT::getVectorNumElements(VT); 712826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 713826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 714826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 8> Scalars; 715826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 4> Operands(Op.getNumOperands()); 716826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned i = 0; i != NE; ++i) { 717826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned j = 0; j != Op.getNumOperands(); ++j) { 718826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Operand = Op.getOperand(j); 719826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType OperandVT = Operand.getValueType(); 720826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(OperandVT)) { 721826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A vector operand; extract a single element. 722826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType OperandEltVT = MVT::getVectorElementType(OperandVT); 723826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, 724826695281344e3a4c4d44d73dd155107aafd689bDan Gohman OperandEltVT, 725826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operand, 726826695281344e3a4c4d44d73dd155107aafd689bDan Gohman DAG.getConstant(i, MVT::i32)); 727826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } else { 728826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A scalar operand; just use it as is. 729826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = Operand; 730826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 731826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 732826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Scalars.push_back(DAG.getNode(Op.getOpcode(), EltVT, 733826695281344e3a4c4d44d73dd155107aafd689bDan Gohman &Operands[0], Operands.size())); 734826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 735826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 736826695281344e3a4c4d44d73dd155107aafd689bDan Gohman return DAG.getNode(ISD::BUILD_VECTOR, VT, &Scalars[0], Scalars.size()); 737826695281344e3a4c4d44d73dd155107aafd689bDan Gohman} 738826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 739a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 740a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 741a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 742a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 7433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 74409ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 74509ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 74609ec1b058331aadb29a348091611d23892b5c492Chris Lattner 747c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 748e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 74945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 750e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 7513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 752e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 75345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 75445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 755c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 756c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 7573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 758c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 75903c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 7603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 76345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 76445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 765718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 766e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 7673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7689373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 7693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 770456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 771456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 7723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 773948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 774948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 775948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 776948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 777948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 77837efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 779948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 7803181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 781948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 782948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 783b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 784948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 785948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 786948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 787948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 788948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 789948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 790a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 791948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 792948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 7933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 794d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 795d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 796d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 797f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 798c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 799d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 800c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 801f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 802d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 803d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 804d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 805d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 806d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 807d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 808e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 80939833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 810e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 8113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 8123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 8130d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 8143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 815b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 81603c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 81737efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 81837efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 8190c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 8200c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 821948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 822948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 823948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 824948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 8250c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 8260c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 8270c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 8283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 829bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 830bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 831bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 832bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 833bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 834bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 835bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 836bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 837bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 838bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 839055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov case ISD::FRAME_TO_ARGS_OFFSET: { 840066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 841066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 842066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov default: assert(0 && "This action is not supported yet!"); 843066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Custom: 844066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 845066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov if (Result.Val) break; 846066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov // Fall Thru 847066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Legal: 848066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = DAG.getConstant(0, VT); 849066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 850066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov } 851055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov } 852066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 8532bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 8542bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 8552bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey MVT::ValueType VT = Node->getValueType(0); 8562bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8572bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 8582bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 8598782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 8602bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = DAG.getCopyFromReg(Tmp1, Reg, VT).getValue(Op.ResNo); 8612bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8622bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8632bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 8642bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 8652bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 8662bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 867eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 868eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 869eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 870eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 8718782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8728782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 8738782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 874eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 8758782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8768782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 8778782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 8788782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 8798782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey MVT::ValueType VT = Node->getValueType(0); 8808782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8818782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 8828782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 8838782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 8848782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = DAG.getCopyFromReg(Tmp2, Reg, VT).getValue(Op.ResNo); 8858782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 8868782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8878782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 8888782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 8898782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 8908782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 891eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 892eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 893eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 894eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 8952bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8962bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8972bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 898eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 8992bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 9006d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky case ISD::EH_RETURN: { 9012365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 9022365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // The only "good" option for this node is to custom lower it. 9032365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9042365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov default: assert(0 && "This action is not supported at all!"); 9052365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Custom: 9062365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 9072365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov if (Result.Val) break; 9082365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Fall Thru 9092365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Legal: 9102365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Target does not know, how to lower this, lower to noop 9112365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = LegalizeOp(Node->getOperand(0)); 9122365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 9132365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov } 9146d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky } 9152365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 91608951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 91708951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 91808951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 919c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 92008951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 921308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 922c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 923456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 924456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 92569a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 92669a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 9277310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 928f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 929c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 9307310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 931f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 932c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 933f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 934c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 935c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 936c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 937c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 9387310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 9397310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 94013c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 94113c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 94213c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 94313c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 94413c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 945fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 946fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 947fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 948ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 949ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 950fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 951fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 952fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 953f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen Result = DAG.getConstantFP(APFloat(APInt(MVT::getSizeInBits(VT), 0)), 954f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen VT); 955fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 956fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 957fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 958ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 959fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 960fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 961fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 962fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 963d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 96448b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 96548b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 96648b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 967f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 968d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 969d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 970f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 97110d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 97210d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 97348b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 97410d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 97510d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 97610d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 97713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 97813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 97913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 98013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 98113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 98213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 98313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 98413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 98513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 98613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 98713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 98813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 98913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 990d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 99136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 99236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 99336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 99436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 99536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 99636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 99736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 99836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 999f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 100044c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 1001abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 10021ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 1003abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 100444c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 1005abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 1006e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 1007abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 1008e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 100944c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 1010abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1011bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 1012abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 1013abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 1014abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 1015abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1016abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 1017abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 1018abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 1019abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 1020bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 1021abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 1022d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 1023d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 102444c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned ID = MMI->RecordLabel(Line, Col, SrcFile); 1025abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 10261ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey Result = DAG.getNode(ISD::LABEL, MVT::Other,&Ops[0],Ops.size()); 1027abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1028e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 1029e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 1030e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 103136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1032e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 103336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 10349ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 10359ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 1036f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 103736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 10389ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 10399ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 10409ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 10419ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 10429ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 10439ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 10449ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 10459ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 104636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 104736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 1048f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 104936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 105036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 105136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 105236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1053f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 1054f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 1055abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 1056f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 1057f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 1058abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1059abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1060abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 1061abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 1062abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 1063c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 1064abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1065abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1066abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1067abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 10681ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 10691ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid LABEL node!"); 10701ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 1071abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 1072abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1073abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1074abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 1075c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1076f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 1077a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 1078a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 1079a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 1080f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 1081551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 108236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 1083c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 1084c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 1085c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 1086c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 1087c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 10883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 10893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 10903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1091c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 1092c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 1093c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (Tmp1.Val) 1094c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 1095c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 10963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1097c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 10983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 10993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 11003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 11013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 11023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 11033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 11043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 11053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 11063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 11073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 11083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 11093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 11103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 11113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 11123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 11133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 11143181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 11153181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 1116f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen Result = DAG.getTargetConstantFP(CFP->getValueAPF(), 1117f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CFP->getValueType(0)); 11183181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 11193181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 11203181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 11213181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 11223181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 11233181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 11243181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 11253181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 11263181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 11273181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 11283181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 11293181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 11303181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 1131279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 11323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 11333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 11343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1135040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1136040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1137c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1138c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1139c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1140c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1141c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1142c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1143c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1144c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1145040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1146f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1147040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1148c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1149c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1150f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1151a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1152a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1153fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1154fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1155f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1156fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1157b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1158b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 11590f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 11600f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // The number of incoming and outgoing values should match; unless the final 11610f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // outgoing value is a flag. 11620f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling assert((Tmp3.Val->getNumValues() == Result.Val->getNumValues() || 11630f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling (Tmp3.Val->getNumValues() == Result.Val->getNumValues() + 1 && 11640f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp3.Val->getValueType(Tmp3.Val->getNumValues() - 1) == 11650f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling MVT::Flag)) && 1166b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1167e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1168f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1169e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1170b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 11710f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling if (Tmp3.Val->getValueType(i) == MVT::Flag) 11720f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling continue; 1173b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 1174e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 1175e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1176e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 1177e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1178e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1179557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1180557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1181557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1182557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1183557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1184557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1185557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1186557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1187557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1188557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1189557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1190557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1191557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1192557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp3 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1193557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1194557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1195557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1196b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1197b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 11982332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 11992332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 12002332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 12012332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 12022332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 12032332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12042332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12052332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1206ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1207ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 1208b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 12092332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12102332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12112332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 12122332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 12132332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 12142332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 12152332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 12162332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 12172332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 12182332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 12192332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 12202332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 12212332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12222332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 12232332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 12242332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 12252332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 12262332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12272332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12282332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 12292332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 12308d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 12318d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 12328d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 12338d5a894501b7546dee94df03118b90126c420820Chris Lattner SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 12348d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1.getValueType(), Tmp2); 12358d5a894501b7546dee94df03118b90126c420820Chris Lattner 12368d5a894501b7546dee94df03118b90126c420820Chris Lattner unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 12378d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 123851eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType ShufMaskEltVT = MVT::getVectorElementType(ShufMaskVT); 12398d5a894501b7546dee94df03118b90126c420820Chris Lattner 12408d5a894501b7546dee94df03118b90126c420820Chris Lattner // We generate a shuffle of InVec and ScVec, so the shuffle mask should 12418d5a894501b7546dee94df03118b90126c420820Chris Lattner // be 0,1,2,3,4,5... with the appropriate element replaced with elt 0 of 12428d5a894501b7546dee94df03118b90126c420820Chris Lattner // the RHS. 1243bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> ShufOps; 12448d5a894501b7546dee94df03118b90126c420820Chris Lattner for (unsigned i = 0; i != NumElts; ++i) { 12458d5a894501b7546dee94df03118b90126c420820Chris Lattner if (i != InsertPos->getValue()) 12468d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 12478d5a894501b7546dee94df03118b90126c420820Chris Lattner else 12488d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 12498d5a894501b7546dee94df03118b90126c420820Chris Lattner } 1250bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 1251bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ShufOps[0], ShufOps.size()); 12528d5a894501b7546dee94df03118b90126c420820Chris Lattner 12538d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 12548d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1, ScVec, ShufMask); 12558d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = LegalizeOp(Result); 12568d5a894501b7546dee94df03118b90126c420820Chris Lattner break; 12578d5a894501b7546dee94df03118b90126c420820Chris Lattner } 12588d5a894501b7546dee94df03118b90126c420820Chris Lattner 12592332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 12602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 12612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 12622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 12632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 12642332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 1265f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 1266f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType EltVT = Tmp2.getValueType(); 1267f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 1268f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 126985dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(VT); 1270eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 12718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, NULL, 0); 1272eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 1273eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 1274f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 1275f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 1276eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 1277f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 1278f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 1279f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 1280eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 12818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Ch = DAG.getStore(Ch, Tmp2, StackPtr2, NULL, 0); 1282eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 1283466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Ch, StackPtr, NULL, 0); 12842332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12852332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12862332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12872332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1288ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 12894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 12904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 12914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 12924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 12934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1294ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1295ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1296ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1297ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1298ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1299ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1300ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 13014d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 13024d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 13034d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 13044d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 13054d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 13064d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 13074d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 13084352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 13094352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1310ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1311ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1312ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 131387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 131487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 131587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 131687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 131787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 131887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 13194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 13204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 13214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 13224352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 13234352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 13244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 13254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 132618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 132718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 132818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 132918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 133018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 133118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 133218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 133318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 133451eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 133518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 133618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 133718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1338bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 133918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 134018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 134118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 134218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 134318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 134418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 134518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 134618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 134718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 134818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 134918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 135018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 135118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 135218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 135318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1354bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 13554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 135618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 13574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 13584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 13594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 13604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 13614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 13624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 13634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 13644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 13654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 13664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 13674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 13684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 13694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 13704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 13714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 13724352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 137387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 137487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1375384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1376384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 13777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1378384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1379384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 13807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1381384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1382384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 13837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 13847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 13857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 13867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 13877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 13886595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 13896595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 13906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 13916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 13926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 13946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 13956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 139600755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 13976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1398c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1399c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1400c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 14016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 14036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 14046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 14056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 14076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1408c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1409b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1410b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1411b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 14126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 14146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1415f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 14166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1417f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 14186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 14196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 14214b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 14224b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 14234b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 14244b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 14256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 14266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 14276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 14286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 14296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 14306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 14316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 14326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 14336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 14346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 14366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 14376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 14386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 14396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 144016cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 14416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 14426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 14436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 14446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 1445718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 14466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 14476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 14486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 14496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 14506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 14526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 14533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 145470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 145570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 145670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 145770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1458f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 145970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1460f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 146170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 146270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 146370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 146470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 146570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1466f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 146770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 146870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1469f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 147070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 14716a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 14724b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 14736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 14746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 14754b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 14764b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 14774b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 14784b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 14794b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 14804b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1481a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 148261bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1483fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1484fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1485fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1486c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1487fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1488c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 14895f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 149061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1491a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1492903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1493903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1494903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1495903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1496903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 14970f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 14980f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // Chain the dynamic stack allocation so that it doesn't modify the stack 14990f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // pointer when other instructions are using the stack. 15000f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCALLSEQ_START(Chain, 15010f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy())); 15020f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1503903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 150461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, VT); 150561bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 150661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned Align = cast<ConstantSDNode>(Tmp3)->getValue(); 150761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 150861bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 150961bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 15103e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 15113e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 151261bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 15130f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 15140f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 15150f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp2 = 15160f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getCALLSEQ_END(Chain, 15170f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 15180f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 15190f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling SDOperand()); 15200f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1521c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1522c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1523903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1524903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1525903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 15265f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 15275f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1528c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1529c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1530a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1531903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1532a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1533903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1534a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1535903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1536903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1537c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1538c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1539903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1540a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 154125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1542f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 154325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 154425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 154525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 154625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 154725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 154825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 154925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 155025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 155125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 155225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 155325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 155425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 155525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 155625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 155725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 155825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 155925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 156025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 156125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 156225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 156325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 156425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 156525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 156625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 156725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1568ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 156925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1570f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1571ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1572ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1573c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1574ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1575ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 157625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1577c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1578c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 15806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 15816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 15826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 15836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1584c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1585c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 158637efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 158737efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 158837efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 158937efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 159037efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 159137efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 159237efe6764568a3829fee26aba532283131d1a104Nate Begeman 159337efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 159437efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 159537efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 159637efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 159737efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 159837efe6764568a3829fee26aba532283131d1a104Nate Begeman } 159937efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 160037efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 16013d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 16023d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16033d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 16043d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 16053d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 16063d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 16073d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 16083d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 16093d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 16103d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 16113d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 16123d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 16133d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 16143d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 16153d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 16163d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 16173d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 16183d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 16193d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 16203d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 16213d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 16223d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 16233d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1624acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1625acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 16263d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 16273d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1628acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1629acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1630acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1631acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 1632acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, NULL, 0); break; 1633acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, NULL, 0); break; 1634acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1635acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1636cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = LD; 1637acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 16383d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 16393d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 1640cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng // RelocBase can be JumpTable, GOT or some sort of global base. 1641cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng if (PTy != MVT::i32) 1642cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::SIGN_EXTEND, PTy, Addr); 1643cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, 1644cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng TLI.getPICJumpTableRelocBase(Table, DAG)); 16453d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 1646cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 16473d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 16483d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 16493d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1650c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1651c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 16536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 16546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 16556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 16566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 165747e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 165847e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 165947e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 166047e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 166147e9223e06390897c3834f8c527001df392570ffChris Lattner break; 166247e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 166347e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1664f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1665f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1666f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 1667ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 1668f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner MVT::getIntVTBitMask(Tmp2.getValueType())^1)) 1669f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 167047e9223e06390897c3834f8c527001df392570ffChris Lattner break; 167147e9223e06390897c3834f8c527001df392570ffChris Lattner } 1672456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1673456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1674c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 16757cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 16767cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 16777cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1678456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1679456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1680456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1681456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1682456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 16837cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 16847cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 16857cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 16867cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 16877cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 16887cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 16897cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 16907cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 16917cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 16927cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 16937cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 16947cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 16957cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 16967cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 16977cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 16987cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 16997cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 17007cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 17026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1704750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1705750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1706750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1707181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1708750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1709722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1710722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1711750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1712750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1713750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1714750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1715750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1716750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1717750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1718750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1719750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1720750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1721456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1722181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1723181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1724456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1725456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1726456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1727456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1728181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 17297cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1730c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1731f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1732466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1733466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1734466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 17352d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1736466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1737466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1738466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1739466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1740466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1741466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1742456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1743466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1744466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1745f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1746f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1747f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1748f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1749f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1750f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(LD->getLoadedVT())); 1751f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1752f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1753f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1754f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1755f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1756907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1757907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1758f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1759f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1760f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1761466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1762466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1763466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1764466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1765466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1766466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1767466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1768466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1769466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1770466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1771466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1772466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1773466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1774466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1775d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1776d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1777466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 177841f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1779466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1780f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1781466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1782466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1783466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1784466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1785466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1786466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1787466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 17882e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType SrcVT = LD->getLoadedVT(); 1789466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getLoadXAction(ExtType, SrcVT)) { 1790466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1791466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: 1792466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(SrcVT == MVT::i1 && 1793466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng "Can only promote extending LOAD from i1 -> i8!"); 1794466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1795466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValue(), LD->getSrcValueOffset(), 1796d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman MVT::i8, LD->isVolatile(), LD->getAlignment()); 1797f411b83c8c6853c2a922b692e782566353153f08Duncan Sands Tmp1 = Result.getValue(0); 1798f411b83c8c6853c2a922b692e782566353153f08Duncan Sands Tmp2 = Result.getValue(1); 1799c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1800466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1801466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng isCustom = true; 1802466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FALLTHROUGH 1803466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: 1804466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1805466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = Result.getValue(0); 1806466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = Result.getValue(1); 1807456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1808466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (isCustom) { 1809466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 1810466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp3.Val) { 1811466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Tmp3); 1812466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1813466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1814f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 1815f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1816f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1817f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1818f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1819f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(LD->getLoadedVT())); 1820f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1821f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1822f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1823f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp1 = Result.getOperand(0); 1824f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp2 = Result.getOperand(1); 1825907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp1 = LegalizeOp(Tmp1); 1826907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp2 = LegalizeOp(Tmp2); 1827f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1828f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1829456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1830466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1831466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Expand: 1832466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 1833466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 1834466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 1835d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1836d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1837466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1838466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1839466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Load.getValue(1)); 1840466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1841466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1842fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 1843466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Turn the unsupported load into an EXTLOAD followed by an explicit 1844466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // zero/sign extend inreg. 1845466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 1846466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1, Tmp2, LD->getSrcValue(), 1847d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), SrcVT, 1848d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1849466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand ValRes; 1850466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) 1851466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1852466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, DAG.getValueType(SrcVT)); 1853466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 1854466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1855466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1856466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1857c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 18589d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 1859466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 1860466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 1861466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1862466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1863466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 186401ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 186501ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 18665dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 18675dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 18685dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1869c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 18705dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 18715dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 18725dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 18735dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 18745dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 18755dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 18765dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 18775dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 18785dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 18795dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 18805dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 18815dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 18825dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 18835dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 18845dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 18855dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 18865dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 18875dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 18885dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 18895dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 18905dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 18915dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 18923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 18935dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 18943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 18953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 18963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1897edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1898c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1899d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 19007310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1901d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1902f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1903c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 19047310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1905f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1906c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1907f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1908c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1909c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1910c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1911c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 19127310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 19137310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 19147310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 19157310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1916c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 19177310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1918c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 19197310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 19203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 19223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 19233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 19246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 19256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 19266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 19276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 19286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 1929f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 19303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 19318e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 193298f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 19338e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 1934f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 19353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 19368e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 19373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1938f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 19397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(Tmp2.getValueType())) { 1940f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1941f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 1942edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 1943edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 1944edf2e8da256496c19390cfd46da80746373e9989Chris Lattner if (!TLI.isLittleEndian()) 1945edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 1946edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 194713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 194813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 194913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 195013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 1951f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 1952f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1953f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 1954e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Tmp2.ResNo; 1955e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 1956e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 1957f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 19587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 1959ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 1960f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 19617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 1962ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 19637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 19648e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1965f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 1966f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 19677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 19687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 19698e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1970b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1971b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 1972b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 1973b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1974f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 1975f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 1976f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1977f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1978b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 1979b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 1980f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1981f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 1982fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 1983f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1984f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1985f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1986edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 19873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 19888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 19898e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1990c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 19918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 19923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1995c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 19963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 1998f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 19993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 20008e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 20013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 20023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 20034e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 20048e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 20053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 20063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 20073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 20086595cb3000d7f5f8e9a76d556aa8609db91b7887Dan Gohman assert(!MVT::isExtendedVT(Node->getOperand(i).getValueType()) && 2009b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 20103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 20113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 20128e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 201313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 201413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 201513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 201613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 2017edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 20183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 20193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 20208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 20213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2022c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2023c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 2024f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 2025c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 2026f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 2027f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 20283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 20293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 20303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 203117c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 20326862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 20336862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 20346862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 20356862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 20366862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 20376862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 20386862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 20396862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 20406862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 204117c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 20423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2043f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 20448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 20458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 20468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 2047d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 2048d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 2049d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 20508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 20518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 2052d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 2053d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 2054d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 2055d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 2056d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 2057d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 20589e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // We generally can't do this one for long doubles. 20592b4c279a8e203fa8b13adf7ba3a5d4c8bef70df3Chris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 20603cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (CFP->getValueType(0) == MVT::f32 && 20613cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getTypeAction(MVT::i32) == Legal) { 20629d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen Tmp3 = DAG.getConstant((uint32_t)CFP->getValueAPF(). 20639d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen convertToAPInt().getZExtValue(), 20643f6eb7419de437436265831fce92f62498556e08Dale Johannesen MVT::i32); 20659e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 20669e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 20679e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 20689e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (CFP->getValueType(0) == MVT::f64) { 20693cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // If this target supports 64-bit registers, do a single 64-bit store. 20703cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (getTypeAction(MVT::i64) == Legal) { 20713cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp3 = DAG.getConstant(CFP->getValueAPF().convertToAPInt(). 20723cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getZExtValue(), MVT::i64); 20733cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 20743cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 20753cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 20763cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } else if (getTypeAction(MVT::i32) == Legal) { 20773cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // Otherwise, if the target supports 32-bit registers, use 2 32-bit 20783cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // stores. If the target supports neither 32- nor 64-bits, this 20793cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // xform is certainly not worth it. 20803cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner uint64_t IntVal =CFP->getValueAPF().convertToAPInt().getZExtValue(); 20813cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SDOperand Lo = DAG.getConstant(uint32_t(IntVal), MVT::i32); 20823cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SDOperand Hi = DAG.getConstant(uint32_t(IntVal >>32), MVT::i32); 20833cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (!TLI.isLittleEndian()) std::swap(Lo, Hi); 20843cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 20853cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 20863cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 20873cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 20883cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getIntPtrConstant(4)); 20893cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset+4, 2090dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands isVolatile, MinAlign(Alignment, 4U)); 20913cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 20923cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 20933cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 20943cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } 2095d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2096d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2097d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 20988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (getTypeAction(ST->getStoredVT())) { 20998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 21008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 21012efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 21028b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 21038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 21048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 21058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 21068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2107f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2108f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2109f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2110f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2111f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2112f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(ST->getStoredVT())); 2113f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2114f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2115f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2116f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2117f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 21188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 21198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 21208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 21218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 21228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 21238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 21248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 21258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 21268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 2127d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 2128d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 21298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 21308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 21312efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 2132f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 21338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 21348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 21358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 21368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2137d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, ST->getStoredVT(), 2138d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 21398b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 214003c8546ec57523970874917854a2fb77b1ff598eChris Lattner 21418b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 21428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 21438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 2144c7029805ef35ce9805931067b841e6af11db382eChris Lattner 21458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 21468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 21478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 21487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (MVT::isVector(ST->getValue().getValueType())) { 21498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 2150e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = ST->getValue().ResNo; 2151e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 2152e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 21538b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 21547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2155ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 21568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 21577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2158ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 21597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = LegalizeOp(Node->getOperand(1)); 21608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2161d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 21628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 21638b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 21648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 21658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 21667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = ScalarizeVectorOp(Node->getOperand(1)); 21678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2168d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 21698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 21708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 21718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 21728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 21738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 21748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SplitVectorOp(Node->getOperand(1), Lo, Hi); 21755db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman IncrementSize = MVT::getVectorNumElements(Lo.Val->getValueType(0)) * 21765db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::getSizeInBits(EVT)/8; 21778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2178c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 21798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ExpandOp(Node->getOperand(1), Lo, Hi); 21807b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 21818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 21828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!TLI.isLittleEndian()) 21838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2184c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2185c7029805ef35ce9805931067b841e6af11db382eChris Lattner 21868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2187d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 21887b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 21897b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 21907b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 21917b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 21927b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 21937b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 21947b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 21958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 21968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng getIntPtrConstant(IncrementSize)); 21978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 21988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2199d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2200dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 22018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2202d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 22038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 22048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 22058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 22068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 22078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncating store 22088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(ST->getValue().getValueType()) && 22098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Cannot handle illegal TRUNCSTORE yet!"); 22108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 22118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 22128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The only promote case we handle is TRUNCSTORE:i1 X into 22138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // -> TRUNCSTORE:i8 (and X, 1) 22148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (ST->getStoredVT() == MVT::i1 && 22158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getStoreXAction(MVT::i1) == TargetLowering::Promote) { 22168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Promote the bool to a mask then store. 22178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::AND, Tmp3.getValueType(), Tmp3, 22188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng DAG.getConstant(1, Tmp3.getValueType())); 22198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2220d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, MVT::i8, 2221d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 22228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 22238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 != ST->getBasePtr()) { 22248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 22258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 2226d9731af75b38f30c02f19d6e81333b9c2599ad5fChris Lattner } 2227c7029805ef35ce9805931067b841e6af11db382eChris Lattner 22288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType StVT = cast<StoreSDNode>(Result.Val)->getStoredVT(); 22298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getStoreXAction(StVT)) { 22308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2231f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2232f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2233f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2234f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2235f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2236f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(ST->getStoredVT())); 2237f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2238f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2239f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2240f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2241f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 22428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 22438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 22448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 22458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 22468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 22473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2249f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 225095762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 225195762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2252c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 225395762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2254140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2255140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2256c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2257c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2258c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2259456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2260140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2261140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2262456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2263456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2264c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2265c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 2266c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2267c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2268140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2269456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2270140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 22714f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 22724f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 22734f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2274c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 22754f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2276c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 22774f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2278c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2279c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 22804f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2281456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2282140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2283456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2284456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2285456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2286c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2287c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2288c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 2289456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2290140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2291140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2292140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2293c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2294140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2295140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2296140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2297456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2298456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2299456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2300456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2301140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2302140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 23034f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 23044f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 23054f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 23064f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 23074f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 23084f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 23094f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2310140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2311140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2312140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2313140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 231451b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 231551b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2316c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2317f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2318f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2319f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 23206a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 23216a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 23226a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 23236a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2324f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2325f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 23266a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 23276a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2328f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2329f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 233049c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 233149c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 233249c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 23336a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 23346a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2335c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2336f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 23372ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 233847e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 233947e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 234047e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 234147e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 234247e9223e06390897c3834f8c527001df392570ffChris Lattner break; 234347e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 234447e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2345b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 2346ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 2347b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner MVT::getIntVTBitMask(Tmp1.getValueType())^1)) 2348b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 234947e9223e06390897c3834f8c527001df392570ffChris Lattner break; 235047e9223e06390897c3834f8c527001df392570ffChris Lattner } 23513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 23522ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 235355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2354c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2355456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2356b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 235755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2358456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2359456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2360456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2361456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2362456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2363456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 23649373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 23659373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 23669373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 23679373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 23689373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 23699373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 23709373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 23719373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 23729373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 23739373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 237455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 237555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 237655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 237755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 237855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 237941f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 238041f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 238141f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 238241f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 2383456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2384456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 238555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2386456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2387456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 238855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 238955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 239055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 239155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 239255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 239355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 239455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 239555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 239655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 239755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 23983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2399750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2400750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2401750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 24029373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 24039373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2404750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 24059373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2406750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2407750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2408750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2409750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2410750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2411750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2412750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2413750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2414750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2415750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2416750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2417750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2418750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2419750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2420750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2421750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2422750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2423750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 24249373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 24259373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 24269373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2427750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 24283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2429750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2430750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2431750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2432750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2433750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2434750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2435750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2436750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2437750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2438750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 24393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 24403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2441b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 244273e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2443456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2444456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2445456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2446456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2447456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 24482b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2449456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 24502b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 24512b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2452456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2453b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2454ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2455ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2456ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2457ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2458ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 245900755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner MVT::ValueType OldVT = NewInTy; OldVT = OldVT; 2460ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2461ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2462ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2463ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2464ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2465ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2466ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2467ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2468ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2469ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2470ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 24711ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2472ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2473ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2474ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2475ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2476ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2477ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2478ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2479ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2480c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2481c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 24822b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2483433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 24845e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2485ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2486b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2487b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2488b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2489b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2490b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2491b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 24922b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2493b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2494b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 24953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2496e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 2497e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 2498e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 2499deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 2500e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 2501e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 2502e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 2503e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 2504e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 2505e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2506deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 2507e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2508e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2509deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 2510e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2511e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2512e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 2513edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 2514e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2515272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2516272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2517272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 25186814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 25196814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 25206814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 2521fa9aa2b424d0a7d9f7201f8fdcf5ccfa05db3a80Chris Lattner ExpandOp(Node->getOperand(3), Tmp4, HiPart); 25226814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 25236814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2524e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2525e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2526e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2527e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2528e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2529272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2530272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2531272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2532272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2533272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2534272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2535272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2536272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2537272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2538272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2539e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2540e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2541e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 254255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 25435c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola SDOperand Tmp6; 25445c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola switch (getTypeAction(Node->getOperand(5).getValueType())) { // bool 25455c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Expand: assert(0 && "Cannot expand this yet!"); 25465c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Legal: 25475c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Tmp6 = LegalizeOp(Node->getOperand(5)); 25485c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola break; 25495c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Promote: 25505c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Tmp6 = PromoteOp(Node->getOperand(5)); 25515c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola break; 25525c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola } 25535c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola 255455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 255555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2556456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2557456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2558456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 25595c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case TargetLowering::Legal: { 25605c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola SDOperand Ops[] = { Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6 }; 25615c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Result = DAG.UpdateNodeOperands(Result, Ops, 6); 2562456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2563456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2564456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2565456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 256655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 25675c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola } 256855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2569e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2570e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2571e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2572a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 257347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListTy Args; 257447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 2575e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 25763bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2577e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2578d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp2; Entry.Ty = IntPtrTy; 257947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2580dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2581dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2582dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2583dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2584dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2585dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2586d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp3; Entry.Ty = Type::Int32Ty; Entry.isSExt = true; 258747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2588d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp4; Entry.Ty = IntPtrTy; Entry.isSExt = false; 258947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2590e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2591e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2592e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2593e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2594b25fe8267182662750dcb76a70a20f4b14a5568dAnton Korobeynikov Entry.Ty = IntPtrTy; 2595b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp2; Args.push_back(Entry); 2596b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp3; Args.push_back(Entry); 2597b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp4; Args.push_back(Entry); 2598e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2599e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2600e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2601e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 260245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2603e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 260447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(Tmp1, Type::VoidTy, false, false, CallingConv::C, false, 2605e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2606456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 260755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 260855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2609e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2610e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2611e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 261252d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 26135b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 26145b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 26155b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2616f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 261784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 261884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 261984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 262084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 262184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2622c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2623f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 26242c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 262505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 262605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 262705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2628456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2629456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2630456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2631456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2632456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 263305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2634456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 263505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 263605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 263712f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 263805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2639269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 264005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 264105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 264205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 264305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 264405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 26452c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 26462c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 26472c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 26482c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 26492c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 265084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 26512c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 26522c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 26533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 26543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 26553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2656c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2657c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 26583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 26593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 26603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 26613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 26623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 266303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 266403c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 266503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 266601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 266701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 266801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 266901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 2670826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 26713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2672f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2673f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2674f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2675f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2676f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2677f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2678f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2679f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2680f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2681c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2682c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2683456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2684e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2685bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2686456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2687456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2688456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2689456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 269057030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2691bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 2692525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman MVT::ValueType VT = Op.getValueType(); 2693525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2694525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if multiply or divide can be lowered using two-result operations. 2695525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 2696525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MUL) { 2697525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We just need the low half of the multiply; try both the signed 2698525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // and unsigned forms. If the target supports both SMUL_LOHI and 2699525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // UMUL_LOHI, form a preference by checking which forms of plain 2700525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // MULH it supports. 2701525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, VT); 2702525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, VT); 2703525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, VT); 2704525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, VT); 2705525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned OpToUse = 0; 2706525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI && !HasMULHS) { 2707525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2708525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI && !HasMULHU) { 2709525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2710525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasSMUL_LOHI) { 2711525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2712525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI) { 2713525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2714525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2715525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (OpToUse) { 2716525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(OpToUse, VTs, Tmp1, Tmp2).Val, 0); 2717525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2718525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2719525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2720525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHS && 2721525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SMUL_LOHI, VT)) { 2722525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 2723525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2724525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2725525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHU && 2726525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UMUL_LOHI, VT)) { 2727525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 2728525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2729525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2730525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SDIV && 2731525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 2732525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 0); 2733525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2734525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2735525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UDIV && 2736525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 2737525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 0); 2738525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2739525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2740525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2741826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Check to see if we have a libcall for this operator. 2742826695281344e3a4c4d44d73dd155107aafd689bDan Gohman RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2743826695281344e3a4c4d44d73dd155107aafd689bDan Gohman bool isSigned = false; 2744826695281344e3a4c4d44d73dd155107aafd689bDan Gohman switch (Node->getOpcode()) { 2745826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::UDIV: 2746826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::SDIV: 2747826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (VT == MVT::i32) { 2748826695281344e3a4c4d44d73dd155107aafd689bDan Gohman LC = Node->getOpcode() == ISD::UDIV 274956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 2750826695281344e3a4c4d44d73dd155107aafd689bDan Gohman isSigned = Node->getOpcode() == ISD::SDIV; 2751826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 2752826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 2753826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 2754826695281344e3a4c4d44d73dd155107aafd689bDan Gohman LC = VT == MVT::f32 ? RTLIB::POW_F32 : 2755826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::f64 ? RTLIB::POW_F64 : 2756826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::f80 ? RTLIB::POW_F80 : 2757826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::ppcf128 ? RTLIB::POW_PPCF128 : 2758826695281344e3a4c4d44d73dd155107aafd689bDan Gohman RTLIB::UNKNOWN_LIBCALL; 2759826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 2760826695281344e3a4c4d44d73dd155107aafd689bDan Gohman default: break; 2761826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 2762826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (LC != RTLIB::UNKNOWN_LIBCALL) { 2763826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Dummy; 2764826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 276552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 276652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 276752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 2768bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 2769bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 2770bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 2771826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 2772bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 2773bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2774cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 2775cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 2776cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 2777cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 2778cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 2779cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 2780cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 2781cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2782cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 2783cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 2784cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 2785cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 2786cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 2787cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 2788cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 2789cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 2790cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2791cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2792cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2793e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 27943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2795a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2796e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SMUL_LOHI: 2797e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UMUL_LOHI: 2798e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SDIVREM: 2799e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UDIVREM: 2800e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // These nodes will only be produced by target-specific lowering, so 2801e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // they shouldn't be here if they aren't legal. 2802a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 2803e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman "This must be legal!"); 2804525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2805525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2806525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2807525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2808e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman break; 2809e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman 2810a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 2811a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2812a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 2813a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 2814a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 2815a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2816a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2817a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 2818a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2819a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2820a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2821a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2822a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2823a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2824a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2825a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 2826a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 2827a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2828a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 28298f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 2830a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 2831912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 2832636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 2833636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 2834636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 2835636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 2836636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 2837912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 2838636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 28398f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 28408f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 28418f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 28428f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 28438f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 28448f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 28458f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 28468f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 28478f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 28488f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 28498f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 28508f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 28518f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 28528f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 28538f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 28548f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 28558f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 28568f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 28578f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 2858912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType NVT = 2859912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 2860912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 2861912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 2862912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 2863a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2864a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2865912095becac923ff614d7b07728eb345ada67765Evan Cheng } 2866a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2867a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2868551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 2869551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 2870551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2871551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2872551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2873551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2874551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2875551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2876551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2877551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2878edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2879551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 2880551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 2881551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2882551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2883551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 2884551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2885551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2886551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2887551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2888551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2889551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2890551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 2891419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 2892419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 2893419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 2894419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 2895419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 2896419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 2897456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2898456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2899456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 2900419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 2901419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 2902419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 2903419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2904419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 2905419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 2906419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 2907419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 2908419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 2909419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 2910456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 2911419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2912419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2913419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2914419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2915419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 2916c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 2917c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 291801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2919c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2920c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2921456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2922c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2923456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 2924456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2925456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2926456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 292757030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 2928c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2929456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2930456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2931456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2932456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 293357030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2934525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman case TargetLowering::Expand: { 29356b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 293647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 2937525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman MVT::ValueType VT = Node->getValueType(0); 2938525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2939525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if remainder can be lowered using two-result operations. 2940525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 2941525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SREM && 2942525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 2943525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 1); 2944525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2945525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2946525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UREM && 2947525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 2948525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 1); 2949525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2950525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2951525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2952525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (MVT::isInteger(VT)) { 2953525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (TLI.getOperationAction(DivOpc, VT) == 295452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 295552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 29566b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 295752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 295852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 295980176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else if (MVT::isVector(VT)) { 296080176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 296152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 2962525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman assert(VT == MVT::i32 && 296352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 296456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 296556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 296652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 296756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 296852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 29690d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman } else { 29700d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman assert(MVT::isFloatingPoint(VT) && 29710d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman "remainder op must have integer or floating-point type"); 297280176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman if (MVT::isVector(VT)) { 297380176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 297480176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else { 297580176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman // Floating point mod -> fmod libcall. 297680176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman RTLIB::Libcall LC = VT == MVT::f32 297780176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman ? RTLIB::REM_F32 : RTLIB::REM_F64; 297880176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman SDOperand Dummy; 297980176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 298080176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman false/*sign irrelevant*/, Dummy); 298180176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } 2982c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2983c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2984c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2985525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2986c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2987acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 2988acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2989acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2990acc398c195a697795bff3245943d104eb19192b9Nate Begeman 29915c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2992acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 2993acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2994456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2995456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2996456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2997acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2998c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2999c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 3000456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 3001456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3002456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3003456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 3004456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 3005456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 3006456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 3007456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3008456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3009acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3010acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 3011466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 3012acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 3013466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 3014acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 3015acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 3016acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 3017acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 3018acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 30198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 30208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 3021acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 3022466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 3023456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 3024acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 3025acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3026acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3027acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3028acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 3029acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 3030acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 3031456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3032456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 3033acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3034acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3035acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 3036acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3037acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 3038acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 3039acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3040acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 3041acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3042456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3043456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3044456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3045acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3046c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 3047c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 3048456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3049456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3050456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3051456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3052acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3053acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3054acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 3055acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 3056466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SVD = cast<SrcValueSDNode>(Node->getOperand(3)); 30578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SrcValueSDNode *SVS = cast<SrcValueSDNode>(Node->getOperand(4)); 3058466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, SVD->getValue(), 3059466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SVD->getOffset()); 30608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, SVS->getValue(), 30618b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SVS->getOffset()); 3062acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3063acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3064acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3065acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3066acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 3067acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3068acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3069acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3070acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 3071acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3072456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3073456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3074456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3075acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3076c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3077456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3078456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 3079456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3080456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3081acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3082acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3083acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 3084acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3085acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3086acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3087acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3088acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 3089acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3090acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3091acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3092c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3093c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 3094acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 3095acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3096456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 3097456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3098456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3099456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3100acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3101acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3102acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3103acc398c195a697795bff3245943d104eb19192b9Nate Begeman 310435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 310535ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 310635ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 310735ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3108c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3109c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3110c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 3111c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 3112c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3113c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 3114c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3115c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 3116c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3117c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 3118c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3119c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 3120c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 3121c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3122c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 3123c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 3124c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3125c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 312635ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 312735ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 3128d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3129d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3130d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3131456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3132456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 3133456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3134c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3135456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3136456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 3137456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 3138456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3139b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned DiffBits = MVT::getSizeInBits(NVT) - MVT::getSizeInBits(OVT); 3140456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3141456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3142456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3143456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3144456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 3145456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3146456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3147456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 3148456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 3149456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3150d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3151d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3152d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3153691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3154691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3155691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3156691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3157691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3158910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 3159691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 3160c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3161910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 3162335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 3163335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3164335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel if (Tmp1.Val) { 3165335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 3166335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 3167910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 3168691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3169691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 3170691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 3171691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3172edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3173edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 3174691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3175691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 3176691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 3177456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3178691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3179691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 3180691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3181691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3182691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 31837cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 3184b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 31857cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 318600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3187910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1); 3188691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3189691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3190456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 319100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 3192b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3193b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(OVT), NVT)); 3194691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3195691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3196691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3197691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3198691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 3199456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 3200691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3201691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3202691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 320300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 32042c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 32052c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 32062c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 3207da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3208da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3209da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 32102c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 32112c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3212456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3213456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 321459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 321559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 32162c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 3217c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 321859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 321959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 322059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 322159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 32222c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 32232c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 3224456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3225456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 3226456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 32272c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 32282c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 3229456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 3230f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3231f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 32324af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 32334af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 32344af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 32357cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 32364af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 32374af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 3238f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3239f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 3240f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 3241f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 3242f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 3243f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 3244826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3245826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 3246826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(VT)) { 3247826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3248826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3249826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3250826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 325156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3252f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 325356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 3254317096ab3710fda0960be58804e9f80c800340f6Dale Johannesen LC = VT == MVT::f32 ? RTLIB::SQRT_F32 : 3255161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::f64 ? RTLIB::SQRT_F64 : 3256161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::f80 ? RTLIB::SQRT_F80 : 3257161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::ppcf128 ? RTLIB::SQRT_PPCF128 : 3258161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL; 325956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 326056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 326156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 326256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 326356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 326456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::COS_F32 : RTLIB::COS_F64; 326556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 3266f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3267f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 32682ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 326956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 327056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 3271f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3272f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 32732c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 32742c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 32752c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 32762c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 32776ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 3278826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType VT = Node->getValueType(0); 3279826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3280826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 3281826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(VT)) { 3282826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3283826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3284826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3285826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3286826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // We always lower FPOWI into a libcall. No target support for it yet. 3287317096ab3710fda0960be58804e9f80c800340f6Dale Johannesen RTLIB::Libcall LC = 3288826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::f32 ? RTLIB::POWI_F32 : 3289826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::f64 ? RTLIB::POWI_F64 : 3290826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::f80 ? RTLIB::POWI_F80 : 3291826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::ppcf128 ? RTLIB::POWI_PPCF128 : 3292161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL; 32936ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 329456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 329556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 32966ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 32976ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 329835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 329967993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 330035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 33017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::isVector(Op.getOperand(0).getValueType())) { 33027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 33037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 33047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 3305e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Node->getOperand(0).ResNo; 3306e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 3307e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 33087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 33097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 33107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 33117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 33127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 331307a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 33147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 33157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 33167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 33177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 33187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 33197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 33207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 33217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 33227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 33237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 33247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 33257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 332667993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 332735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 332835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 332935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 333035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 333135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 333235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 333335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 333435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3335c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 333635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 333735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 333835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 333935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3340d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 33412c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3342fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3343fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3344fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 3345fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3346fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3347d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 3348fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 3349fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 3350456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3351456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3352456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3353456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3354456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3355c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3356456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3357456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3358456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3359456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3360456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3361fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 33626269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 33636269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 33646269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 3365456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3366fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 3367fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 3368fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 3369fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 3370fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 33715b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 3372fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3373fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3374fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 3375fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 3376fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3377fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3378c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3379fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 3380c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 3381c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 3382fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 3383c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 3384c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 3385fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3386c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3387c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 3388fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3389fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3390fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3391fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3392fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3393fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3394fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3395fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3396c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3397fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3398fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3399fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3400fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3401fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3402fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3403fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3404fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3405fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3406fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3407fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3408fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3409fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3410fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3411d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3412fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3413fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3414fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3415fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3416f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3417f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 34181618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 34191618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3420456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3421456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3422456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3423456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3424c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3425456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3426456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3427456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3428456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3429456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3430456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3431456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3432456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3433456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 34341618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3435d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3436d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 3437d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 3438d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 3439f4d4832724eb45f94d63e6a7ab932b8f77279587Dale Johannesen unsigned ShiftAmt = MVT::getSizeInBits(NVT)-1; 344073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen const uint64_t zero[] = {0, 0}; 344173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen APFloat apf = APFloat(APInt(MVT::getSizeInBits(VT), 2, zero)); 344273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen uint64_t x = 1ULL << ShiftAmt; 3443ccf596a53e16ea221a9bf8b3874a7d6afa71f1f4Neil Booth (void)apf.convertFromZeroExtendedInteger 3444ccf596a53e16ea221a9bf8b3874a7d6afa71f1f4Neil Booth (&x, MVT::getSizeInBits(NVT), false, APFloat::rmNearestTiesToEven); 344573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen Tmp2 = DAG.getConstantFP(apf, VT); 3446d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 3447d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3448d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3449d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 345001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3451d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3452d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3453d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 3454456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3455456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3456d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3457d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3458d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3459d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 34601618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3461fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 34626af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 34636af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 34646eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen MVT::ValueType OVT = Node->getOperand(0).getValueType(); 3465fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert ppcf128 to i32 34666eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (OVT == MVT::ppcf128 && VT == MVT::i32) { 3467fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen if (Node->getOpcode()==ISD::FP_TO_SINT) 3468fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Result = DAG.getNode(ISD::FP_TO_SINT, VT, 34696eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen DAG.getNode(ISD::FP_ROUND, MVT::f64, 34706eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen (DAG.getNode(ISD::FP_ROUND_INREG, 34716eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen MVT::ppcf128, Node->getOperand(0), 34726eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen DAG.getValueType(MVT::f64))))); 3473fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen else { 3474fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen const uint64_t TwoE31[] = {0x41e0000000000000LL, 0}; 3475fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen APFloat apf = APFloat(APInt(128, 2, TwoE31)); 3476fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Tmp2 = DAG.getConstantFP(apf, OVT); 3477fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X 3478fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // FIXME: generated code sucks. 3479fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Result = DAG.getNode(ISD::SELECT_CC, VT, Node->getOperand(0), Tmp2, 3480fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::ADD, MVT::i32, 3481fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3482fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FSUB, OVT, 3483fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0), Tmp2)), 3484fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getConstant(0x80000000, MVT::i32)), 3485fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3486fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0)), 3487fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getCondCode(ISD::SETGE)); 3488fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen } 34896eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 34906eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 3491fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert f32 / f64 to i32 / i64. 349256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 34936af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 349473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_SINT: { 349573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen if (OVT == MVT::f32) 349656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 349756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 349873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (OVT == MVT::f64) 349956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 350056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 3501161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::f80) { 350273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen assert(VT == MVT::i64); 3503161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_F80_I64; 3504161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 3505161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::ppcf128) { 3506161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(VT == MVT::i64); 3507161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_PPCF128_I64; 350873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 35096af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 351073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 351173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_UINT: { 351273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen if (OVT == MVT::f32) 351356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 351456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 351573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (OVT == MVT::f64) 351656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 351756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 3518161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::f80) { 351973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen LC = (VT == MVT::i32) 3520161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen ? RTLIB::FPTOUINT_F80_I32 : RTLIB::FPTOUINT_F80_I64; 3521161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 3522161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::ppcf128) { 3523161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(VT == MVT::i64); 3524161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_PPCF128_I64; 352573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 35266af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 352773328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 35286af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 35296af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 35306af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 353156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 353256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 35336af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 35346af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3535fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3536c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3537c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3538c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3539fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3540fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3541fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3542d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3543ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen case ISD::FP_EXTEND: 35445411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 35455411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MVT::ValueType newVT = Op.getValueType(); 35465411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MVT::ValueType oldVT = Op.getOperand(0).getValueType(); 35475411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen if (TLI.getConvertAction(oldVT, newVT) == TargetLowering::Expand) { 3548638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (Node->getOpcode() == ISD::FP_ROUND && oldVT == MVT::ppcf128) { 3549638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen SDOperand Lo, Hi; 3550638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ExpandOp(Node->getOperand(0), Lo, Hi); 3551638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (newVT == MVT::f64) 3552638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Result = Hi; 3553638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen else 3554638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Result = DAG.getNode(ISD::FP_ROUND, newVT, Hi); 3555638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 3556ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen } else { 3557638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // The only other way we can lower this is to turn it into a STORE, 3558638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // LOAD pair, targetting a temporary location (a stack slot). 3559638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 3560638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // NOTE: there is a choice here between constantly creating new stack 3561638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // slots and always reusing the same one. We currently always create 3562638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // new ones, as reuse may inhibit scheduling. 3563638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen MVT::ValueType slotVT = 3564638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen (Node->getOpcode() == ISD::FP_EXTEND) ? oldVT : newVT; 3565638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen const Type *Ty = MVT::getTypeForValueType(slotVT); 3566514ab348fddcdffa8367685dc608b2f8d5de986dDuncan Sands uint64_t TySize = TLI.getTargetData()->getABITypeSize(Ty); 3567638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 3568638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen MachineFunction &MF = DAG.getMachineFunction(); 3569638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen int SSFI = 3570638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen MF.getFrameInfo()->CreateStackObject(TySize, Align); 3571638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 3572638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (Node->getOpcode() == ISD::FP_EXTEND) { 3573638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Result = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), 3574638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen StackSlot, NULL, 0); 3575638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Result = DAG.getExtLoad(ISD::EXTLOAD, newVT, 3576638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Result, StackSlot, NULL, 0, oldVT); 3577638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } else { 3578638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 3579638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen StackSlot, NULL, 0, newVT); 3580a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands Result = DAG.getLoad(newVT, Result, StackSlot, NULL, 0); 3581638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } 3582638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 3583ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen } 35845411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 3585849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3586849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen // FALL THROUGH 358713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 35883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 35893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 35903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3591456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 35923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 35933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3594c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 35953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 359603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 359703c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 359813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3599c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3600c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 360113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 36021713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 36031713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 360413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 360523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 360623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 360703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 360803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 36091713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 361013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 36111713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 361215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 361315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 36141713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 361503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 36161713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 36171713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 36181713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 36191713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 36201713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 362103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 3622f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 3623f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 3624f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 362503c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 36263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 36273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 36280f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 362923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 36300f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 363115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 363245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 363345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 363445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 363555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 363655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 363755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3638c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 363955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 364055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 364145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 364223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 364345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 364445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 364545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 364645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 364727ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 364845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 364945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 365045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 365145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 365245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 36532d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 365445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 365545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 365645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 365745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 365845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 365945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 3660514ab348fddcdffa8367685dc608b2f8d5de986dDuncan Sands uint64_t TySize = TLI.getTargetData()->getABITypeSize(Ty); 3661d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 366245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 3663edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 366444b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner MF.getFrameInfo()->CreateStackObject(TySize, Align); 366545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 36668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 36678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StackSlot, NULL, 0, ExtraVT); 36685f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 3669466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, StackSlot, NULL, 0, ExtraVT); 367045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 367145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 367245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 367355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 367445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 36750f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 36763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 367736397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 367836397f50343639ce9a25996f2d790c656791ab92Duncan Sands SDOperand Ops[6]; 367936397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 368036397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 368136397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 368236397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 368336397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 368436397f50343639ce9a25996f2d790c656791ab92Duncan Sands assert(Result.Val && "Should always custom lower!"); 3685f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands 3686f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Since trampoline produces two values, make sure to remember that we 3687f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // legalized both of them. 3688f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Tmp1 = LegalizeOp(Result.getValue(1)); 3689f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Result = LegalizeOp(Result); 3690f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 0), Result); 3691f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3692f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands return Op.ResNo ? Tmp1 : Result; 369336397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 3694917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case ISD::FLT_ROUNDS: { 3695917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 3696917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 3697917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 3698917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Custom: 3699917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 3700917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov if (Result.Val) break; 3701917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // Fall Thru 3702917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Legal: 3703917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // If this operation is not supported, lower it to constant 1 3704917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = DAG.getConstant(1, VT); 3705917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov break; 3706917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 3707917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 370845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 3709456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 37104ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 37114ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 37124ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 3713456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 3714456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3715456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 37163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 371745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 371845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 371945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 37203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 37213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 37223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 37238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 37248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 37258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 37268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 372703c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 372803c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 372971c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 373003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 373103c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 373203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 373303c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 373403c8546ec57523970874917854a2fb77b1ff598eChris Lattner 373503c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 373603c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 373703c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 373803c8546ec57523970874917854a2fb77b1ff598eChris Lattner 373940030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 37406fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 374145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 374203c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 3743d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 3744d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 374503c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 3746e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 374739833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 3748e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 374903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 375003c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 3751fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3752fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 3753fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 375403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 3755ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 3756ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 3757ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 3758ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 375903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 376003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 376103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 376203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 376303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 376403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3765ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 376682fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 3767c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 37687cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 37697cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 377082fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 3771fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 377203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 377303c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 377403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 377503c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 377603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 377703c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 377803c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 377903c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 378003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3781e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 3782e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 3783e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 3784e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 3785e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 378603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 378779e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 378879e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 3789e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 379003c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 379103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 37928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 37938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 379413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 37958b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 37968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 37978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 37988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 3799456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 38008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 38028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 38038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 38048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 38058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 3806595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 380715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 380813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 380923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 381023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 38118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 38138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 381435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 381535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 381635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 381735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 381835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 38198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 38208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 38218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 38228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 38238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 38248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 38258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 38268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 3827456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 382815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 38298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 38318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 38338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 38348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 38358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 38368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 383777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 3838456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 38398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 38418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 38428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 38438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 38448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 384515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 384615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 38478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 384823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 384923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 385077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 385177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 38528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 385477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 385577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 385677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 385777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 385815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 385915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 386077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 38618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 38628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 38645e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 38655e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 38665e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 38675e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 38685e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 38698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 38708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 38718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 38728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 38730b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 3874456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 38758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 38778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 38788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 38798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 38808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 3882d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 3883d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 3884d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 3885d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 3886d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 3887d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 3888c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 3889b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 3890b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 3891d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 3892d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3893d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3894d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 38958b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 38972c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 38982c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 38992c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 39002c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 39012c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 39022c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 39032c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 39042c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 39052c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 39062c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 3907da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3908da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3909da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 3910da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3911da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 3912da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3913456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 391415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 391515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3916da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 3917da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 39188b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 39198b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 39208b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 39218b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 39228b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 39238b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 39248b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 39258b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 39268b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 39278b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 39288b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 39298b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 393003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 393103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 393203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 39330f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 39348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 39350f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 39360f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 393701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 39380f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 39390f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 39400f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 39410f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 39420f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 394301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 394401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 394501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 394601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 394701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 394801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 394901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 395001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 395101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 395201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 395301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 395401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 39558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 39568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 395701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 395815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 395915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 39600f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 39610f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 39628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 39638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 39648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 39658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 39668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 39678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 396815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 396915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 397015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 397115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 39728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 39738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 39748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 39758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 39768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 397715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 397815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 39798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 398001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 398101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3982a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 398301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 3984ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 3985ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3986ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3987ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3988ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3989ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = PromoteOp(Node->getOperand(0)); 3990ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3991ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3992ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3993ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 3994ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 3995ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3996ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3997ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3998ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3999ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = PromoteOp(Node->getOperand(1)); 4000ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 4001ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 4002ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 4003ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 400401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 400501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 400601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 4007a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 400801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 400901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 401001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 40118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 40128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 40138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 40148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 40158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 40168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 40178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 401823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 401923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 40208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 40218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 40238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 40248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4025456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 40268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 40288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 40298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 403015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 403115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4032456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 40338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 40358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 40368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 403723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4038456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 40398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40400aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 40410aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 4042456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 4043456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 40440aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 40450aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 40460aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 40470aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 4048466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 40490aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 4050466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 40510aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 40520aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 40530aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 40540aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 40550aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 40568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 40578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 40580aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 4059466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 40600aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 40610aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 4062456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 40630aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 40640aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 4065466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 4066466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 406762f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 406862f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 406962f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 407062f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 407155b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 4072d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getLoadedVT(), 4073d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 4074d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 40754c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 4076456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 40774c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 4078466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 407903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 408003c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 408103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 4082456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 408303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 40849373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 40859373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 40869373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 40879373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 4088456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 40899373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 4090d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 4091d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 4092d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 4093d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 4094d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 4095b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 4096b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), 4097d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 4098d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4099fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4100fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4101fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4102456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 4103456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4104fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 4105fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4106456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 4107fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4108fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 4109fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4110fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4111456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 4112d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 4113b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 4114b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 411500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 4116b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), NVT), Tmp1); 4117fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4118fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4119fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 412000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 4121b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 4122b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), NVT)); 4123fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4124fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 4125fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 41267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 41277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 41286595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 41294aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 41304aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 41314aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 413203c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 413303c8546ec57523970874917854a2fb77b1ff598eChris Lattner 413403c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 4135456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4136456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 4137456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 4138456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4139456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 414003c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 414103c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 414203c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 41433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 41447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 41457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 41467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 41477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 41487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 41491597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 41501597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 41511597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 41521597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 41537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Idx = Op.getOperand(1); 41541597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 4155e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman MVT::ValueType TVT = Vec.getValueType(); 41567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(TVT); 41571597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 41587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 41597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 41607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 41617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 41627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 41637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Tmp3 = TLI.LowerOperation(Op, DAG); 41647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 41657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 41667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 41677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 41687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 41697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 41707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 41717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 4172844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 41737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 41747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 41757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 41767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 41777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 41787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 41797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 41801597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 41817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 41827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 41837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 41841597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 41851597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 41861597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (CIdx->getValue() < NumElems/2) { 41871597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 41881597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 41891597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 41907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, 41917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 41921597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 41937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 41941597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 41951597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 41967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 41971597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 41987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 41997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 420085dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Vec.getValueType()); 42017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 42027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 42037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 42047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 42057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 42067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 420790bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 420890bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling if (MVT::getSizeInBits(Idx.getValueType()) > 420990bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling MVT::getSizeInBits(TLI.getPointerTy())) 4210f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::TRUNCATE, TLI.getPointerTy(), Idx); 421190bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling else 4212f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::ZERO_EXTEND, TLI.getPointerTy(), Idx); 421390bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 42147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 42157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 42167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 42171597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 42187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 42191597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 42201597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 42217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 42226595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 42237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDOperand Op) { 42246595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 42256595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 42266595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 42276595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 42286595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 42297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(Vec.getValueType()); 42306595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 42316595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (NumElems == MVT::getVectorNumElements(Op.getValueType())) { 42326595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 42337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 42346595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 42356595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 42366595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 42376595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 42386595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 42396595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 42406595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 42416595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 42426595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 42436595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 42446595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 42456595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 42466595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 42476595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 42487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 42494aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 42504aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 4251750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 4252750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 4253750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 4254750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 4255750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 4256750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 4257750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 4258750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 4259750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 4260638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen SDOperand Tmp1, Tmp2, Tmp3, Result; 4261750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4262750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 4263750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 4264750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 4265750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 4266750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4267750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 4268750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 4269750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 4270750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4271750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 4272750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 4273750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 4274750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 4275750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4276750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 4277750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 4278750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 4279750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 4280750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4281750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 4282750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4283750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4284750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 4285750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 4286750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 4287750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 4288750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 4289750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 4290750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 4291750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4292750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 4293750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4294750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4295750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4296750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4297750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4298750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 4299750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4300750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 4301750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4302750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4303750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4304750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4305750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 43062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 43072b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 43082b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 43092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 431056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 43112b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 43122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 43132b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 431456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 43152b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 43162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 43172b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 431856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 43192b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 43202b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 43212b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 432256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 43232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 43242b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 43252b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 432656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 43272b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 43282b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 43292b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 433056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 43312b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 43322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 43332b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 433456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 43352b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 43362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 4337d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 4338d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 43392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 43405efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 43412b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 43422b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 434356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 43442b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 43452b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 43462b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 434756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 43482b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 43492b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 435056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 43512b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 43522b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 435356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 43542b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 43552b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 435656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 43572b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 43582b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 435956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 43602b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 436156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 436256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 436356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 43642b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 43652b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 43662b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 43672b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 43682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 436956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Tmp1 = ExpandLibCall(TLI.getLibcallName(LC1), 437047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4371b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 43722b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4373d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 437456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 43752b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), Tmp1, Tmp2, CC); 437656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LHS = ExpandLibCall(TLI.getLibcallName(LC2), 437747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4378b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 43792b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHS, Tmp2, 4380d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 43812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 43822b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 43832b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 43842b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 43852b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 43862b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 43872b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 43882b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4389750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 4390750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 4391638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ExpandOp(RHS, RHSLo, RHSHi); 4392638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 4393638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4394638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (VT==MVT::ppcf128) { 4395638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FIXME: This generated code sucks. We want to generate 4396638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, hi1, hi2 4397638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // BNE crN, L: 4398638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, lo1, lo2 4399638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // The following can be improved, but not that much. 4400638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 4401638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, CCCode); 4402638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp3 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4403638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETNE); 4404638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, CCCode); 4405638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4406638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp3); 4407638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = SDOperand(); 4408638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 4409638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } 4410638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4411638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen switch (CCCode) { 4412750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4413750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4414750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4415750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4416750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4417750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4418750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4419750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4420750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4421750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4422750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4423750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4424750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4425750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4426750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4427750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4428750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4429750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4430750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4431750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4432750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4433750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 4434750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4435750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4436750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4437750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4438750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4439750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4440750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4441750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4442750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 44432e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4444750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4445750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4446750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4447750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4448750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4449750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4450750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4451750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4452750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4453750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4454750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4455750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4456750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4457750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4458750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4459750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4460750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 44612e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 44622e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC, 44632e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng false, DagCombineInfo); 44642e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 44652e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 44662e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 44672e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 44682e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 446985dd3be7354f848231362bd70f6517c0e667f95dChris Lattner Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi,CC); 44702e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 44712e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 44722e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 44732e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if ((Tmp1C && Tmp1C->getValue() == 0) || 44742e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 0 && 44752e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 44762e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 44772e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 1 && 44782e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 44792e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 44802e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 44812e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 44822e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 44832e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 44842e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 44852e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 44862e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 44872e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 44882e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 44892e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result=DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 44902e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 44912e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 44922e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 44932e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 44942e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4495750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4496750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 44972b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4498750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4499750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4500750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4501750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 450235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 4503232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 4504232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 450535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 450635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 450735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 450885dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(DestVT); 450935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 451035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 45118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, NULL, 0); 451235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 4513466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 451435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 451535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 45164352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 45174352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 45184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 451985dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Node->getValueType(0)); 4520786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 45218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0); 4522466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, NULL, 0); 45234352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 45244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 45254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4526ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 452707a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4528ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4529ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4530ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 453187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4532033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4533ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 453487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 4535033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 4536033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 45372eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 45382eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 45392eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 45402eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 45412eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4542033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4543033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 454489a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4545033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4546ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4547033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 454887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 45492eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 45502eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 45512eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 45522eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 45532eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 45542eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4555ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4556ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4557ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4558ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4559ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4560ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4561ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4562ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4563ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4564ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4565ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 45662eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4567ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 4568ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4569ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 4570ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 4571ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4572033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4573ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4574ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 4575f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CV.push_back(ConstantFP::get(OpNTy, V->getValueAPF())); 4576ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 4577ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 4578b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 4579ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4580ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 4581ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4582ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4583ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 45849d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 4585ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 4586466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 4587ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 45882eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 45892eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 45902eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 45912eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 45922eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 459351eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman SDOperand Zero = DAG.getConstant(0, MVT::getVectorElementType(MaskVT)); 45942eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 4595bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4596bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 4597033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 45982eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 45994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 46002eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 46012eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 46022eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 46032eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 46042eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 46052eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 46062eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 46072eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 46082eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 46092eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 46102eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4611033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 4612033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 4613033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 4614033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 4615033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 4616033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 4617033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 4618033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 4619033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4620033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4621033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 4622033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 462351eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MaskVec[*II] = DAG.getConstant(i, MVT::getVectorElementType(MaskVT)); 4624033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 4625033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4626bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4627bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 4628033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4629033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 46304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 46314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 4632bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 4633033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4634033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4635033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4636033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 4637033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 4638033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4639033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 4640033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4641033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 4642bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 4643bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 4644033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4645033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4646ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4647ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 4648ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 4649ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 4650ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4651ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 465285dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(VT); 4653ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4654ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 4655bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 4656ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 4657ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 4658ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 4659ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 4660ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 4661ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 4662ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4663841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 4664ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4665ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 4666ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 4667ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4668786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 46698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 4670ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4671ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4672ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 4673ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 4674bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 4675bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 4676ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 4677ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 4678ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4679ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 4680466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 4681ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4682ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 46835b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 46845b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 46855b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 46865b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 46875b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 46885b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 46895b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4690bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 4691f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 4692f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 46935b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 46945b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 46955b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 46965b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4697e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 4698e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 4699e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 4700e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 4701e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 4702e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 4703e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 4704e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 4705f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4706e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 4707f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 4708f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 4709f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 4710f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 4711f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 47127a3c85583d523edb90aa957a02385254957c6e37Chris Lattner // Handle the case when Amt is an immediate. 4713f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 4714f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 4715f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 4716f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 4717f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 4718f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 4719f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 4720f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4721f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4722f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4723f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4724f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4725f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 4726ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4727ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 4728ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 4729f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4730f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 4731f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 4732f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 4733f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 4734f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4735f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4736f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 4737f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4738f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4739f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4740f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4741f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 4742f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4743ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4744ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4745ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 4746f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4747f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4748f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4749f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4750f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 4751f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4752f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4753f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 4754f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4755edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 4756f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4757f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4758edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 4759f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 4760edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4761f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4762ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4763ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4764edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4765ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 4766f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4767f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4768f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4769f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4770f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 4771f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4772f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4773f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4774f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 47750ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 47760ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 47770ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 47780ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner uint64_t Mask = NVTBits, KnownZero, KnownOne; 4779ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 47800ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 47810ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is one, then we can do 47820ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 47830ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownOne & Mask) { 47840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 47850ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 47860ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 47870ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 47880ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 47890ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 47900ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 47910ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 47920ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 47930ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 47940ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 47950ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 47960ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 47970ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 47980ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 47990ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 48000ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 48010ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 48020ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 48030ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 48040ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 48050ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 48060ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 48070ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 48080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is zero, then we can do 48090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 48100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownZero & Mask) { 48110ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 48120ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 48130ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 48140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 48150ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 48160ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 48170ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 48180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 48190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 48200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 48210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 48220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 48230ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 48240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 48250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 48260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 48270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 48280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 48290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 48300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 48310ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 48320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 48330ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 48340ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 48350ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 48360ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 48370ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 48380ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 48390ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 48400ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 4841f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 4842e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 484377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 48449c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 484577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 484677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 484777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 484877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 484977e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 485047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 48516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 48526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 48536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 48546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 48556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 48566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 485777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 485847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 485977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 486077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 486177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 486247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 4863d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 486447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 486577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 486677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 4867edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 48680d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 486977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 48700d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 487147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(InChain, RetTy, isSigned, false, CallingConv::C, false, 4872adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 48730d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 48746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 48756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 48766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 48776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 487899c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 48790d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 488077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 488177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 4882456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 488399c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 488477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 488599c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 488699c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 488777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 488822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 488922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 489022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 489122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 48924c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 48934c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 489422cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 489522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 489622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 489722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 489822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 489922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 490022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 490122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 490222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 490322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 490422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 490522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 490622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 490722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 490822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 490922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 491022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 491122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 491222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 491322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 491422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 491522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 491622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 491722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 491822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 491922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 492022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 492122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 492247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 492322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 492422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 492522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 492622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 492722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 4928466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 4929118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen else if (MVT::getSizeInBits(DestTy) > MVT::getSizeInBits(MVT::f32)) 49304c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 4931118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, DestTy, DAG.getEntryNode(), 49329e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CPIdx, NULL, 0, MVT::f32); 49339e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else 49349e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Unexpected conversion"); 49359e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen 49364c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng MVT::ValueType SCVT = SignedConv.getValueType(); 49374c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 49384c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 49394c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 49404c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (MVT::getSizeInBits(SCVT) != MVT::getSizeInBits(DestTy)) { 49414c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(SCVT == MVT::i32 && DestTy == MVT::f64); 49424c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BUILD_PAIR, MVT::i64, 49434c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 49444c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 49454c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 49464c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 494722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 494822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 494922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 495022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 495122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 495222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 495322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 495422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 495522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 495622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 495722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 495822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 495922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 496022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 496122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 496222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 496322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 496422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 496522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 496622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 496722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 496822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 496922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 497022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 497156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 497222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 497356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F32; 497422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 497522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 497656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F64; 497722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 49786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 49794c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 49806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 49816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 498256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng return ExpandLibCall(TLI.getLibcallName(LC), Source.Val, isSigned, 498356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng UnusedHiPart); 498422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 498522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 498622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 498722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 498822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 498922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 499022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 499122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 499222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 499322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 499422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 499522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 499658092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner // get the stack frame index of a 8 byte buffer, pessimistically aligned 499722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 499858092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *F64Type = MVT::getTypeForValueType(MVT::f64); 499958092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner unsigned StackAlign = 5000d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner (unsigned)TLI.getTargetData()->getPrefTypeAlignment(F64Type); 500158092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, StackAlign); 500222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 500322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 500422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 500522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 500622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 5007408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 5008408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 5009408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 5010408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 5011408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 501222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 501322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 501422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 501522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 501622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 501722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 501822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 501922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 502022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 502122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 5022786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 50238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 502422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 502522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 502622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 50278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 502822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 5029466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 503022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 503122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 503222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 503322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 503422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 503522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 503622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 503722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 503822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 503922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 504022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 504122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 504222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 5043118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) < MVT::getSizeInBits(MVT::f64)) { 5044118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_ROUND, DestVT, Sub); 5045118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) > MVT::getSizeInBits(MVT::f64)) { 5046118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, DestVT, Sub); 504722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 504822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 504922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 505022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 505122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 505222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 505322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 505422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 505522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 505622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 505722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 505822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 505922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 506022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 506122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 506222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 506322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 506422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 506522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 506622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 506722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 506822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 506922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 507022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 507122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 507247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 507322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 507422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 507522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 507622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 507722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 5078466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 507922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 508073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, DestVT, 508122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 5082466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng NULL, 0, MVT::f32)); 508322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 508422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 508522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 508622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 508722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 508822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 508922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 509022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 509122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 509222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 509322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 509422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 509522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 509622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 509722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 509822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 509922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 510022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 510122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 510222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 510322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 510422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 510522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 510622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 510722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 510822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 510922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 511022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 511122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 511222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 511322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 511422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 511522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 511622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 511722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 511822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 511922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 512022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 512122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 512222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 512322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 512422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 512522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 512622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 512722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 512822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 512922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 513022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 513122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 513222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 513322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 513422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 513522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 513622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 513722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 513822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 513922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 514022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 514177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 514277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 514322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 514422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 514522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 514622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 514722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 514822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 514922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 515022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 515122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 515222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 51539c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 515422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 5155e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 515622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 515722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 515822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 515922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 516066de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 516122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 516222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 516322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 516422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 516522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 516622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 516722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 516822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 516922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 517022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 517122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 517222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 5173e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 517422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 517522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 517622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 517722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 517822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 517922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 518022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 518122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 518222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 518322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 5184e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 518522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 51860d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 518722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 5188a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 5189a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 519027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 519127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Okay, we found the operation and type to use. 519227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Operation = DAG.getNode(OpToUse, NewOutTy, LegalOp); 519327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 519427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // If the operation produces an invalid type, it must be custom lowered. Use 519527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // the target lowering hooks to expand it. Just keep the low part of the 519627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // expanded operation, we know that we're truncating anyway. 519727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner if (getTypeAction(NewOutTy) == Expand) { 519827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Operation = SDOperand(TLI.ExpandOperationResult(Operation.Val, DAG), 0); 519927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Operation.Val && "Didn't return anything"); 520027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 520127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 520227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Truncate the result of the extended FP_TO_*INT operation to the desired 520327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // size. 520427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, Operation); 520522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 520613689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 520722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 520822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 520922cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 521022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 521122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 521222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 521322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 521422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 521522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 521622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 521722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 521822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 521922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 522022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 522122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 522222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 522322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 522422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 522522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 522622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 522722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 522822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 522922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 523022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 523122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 523222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 523322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 523422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 523522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 523622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 523722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 523822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 523922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 524022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 524122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 524222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 524322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 524422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 524522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 524622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 524722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 524822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 524922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 525022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 52510d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 525277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 5253edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 525422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 525522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 525622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 525722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 525822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 525922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 526022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 526122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 526222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 526322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 526422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 526522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 526622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 5267b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 526822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 526922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 527022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 527122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 527222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 527322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 527422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 527522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 527622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 527722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 527822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 527922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 528022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 528122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 528222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 528322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 528422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 528522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 528622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 528722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 528822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 528922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 5290b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 529122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 529222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 529322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 529422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 529522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 529622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 529722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 529822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 529922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 530022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 530122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 530222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 530322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 530422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 530522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 530622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 530722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 530822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 530922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 531022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 531122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 5312b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), VT), 531322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 531422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 531522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 531622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 531722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 5318e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 53193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 53203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 53213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 53223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 53233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 53243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 53253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 532671c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 53273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 53283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 53291a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 53307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::isVector(VT)) && 53313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 53323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 53336fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 533440030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 53356fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 53366fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 53376fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 53386fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 53396fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 53403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 53413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 53423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 5343348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 5344348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 53456eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen case ISD::FP_ROUND_INREG: 53466eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (VT == MVT::ppcf128 && 53476eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TLI.getOperationAction(ISD::FP_ROUND_INREG, VT) == 53486eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TargetLowering::Custom) { 5349fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand SrcLo, SrcHi, Src; 5350fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen ExpandOp(Op.getOperand(0), SrcLo, SrcHi); 5351fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Src = DAG.getNode(ISD::BUILD_PAIR, VT, SrcLo, SrcHi); 5352fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand Result = TLI.LowerOperation( 5353fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_ROUND_INREG, VT, Src, Op.getOperand(1)), DAG); 53546eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen assert(Result.Val->getOpcode() == ISD::BUILD_PAIR); 53556eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Lo = Result.Val->getOperand(0); 53566eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Hi = Result.Val->getOperand(1); 53576eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 53586eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 53596eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen // fall through 5360348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 5361e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 536239833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 5363e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 53643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 53653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 536625f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen case ISD::EXTRACT_VECTOR_ELT: 536725f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen assert(VT==MVT::i64 && "Do not know how to expand this operator!"); 536825f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen // ExpandEXTRACT_VECTOR_ELT tolerates invalid result types. 536925f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen Lo = ExpandEXTRACT_VECTOR_ELT(Op); 537025f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen return ExpandOp(Lo, Lo, Hi); 5371fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 5372aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 5373fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 5374fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 5375fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 53763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 53773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 53783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 53793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 53803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 53813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5382004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5383004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5384a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen if (CFP->getValueType(0) == MVT::ppcf128) { 5385a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen APInt api = CFP->getValueAPF().convertToAPInt(); 5386a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[1])), 5387a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5388a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Hi = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[0])), 5389a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5390a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen break; 5391a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen } 5392279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 53939f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 53949f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5395004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5396004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5397d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 53988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 53998137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 54008137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5401d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 540227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 540327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::MERGE_VALUES: 5404c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner if (Node->getNumValues() == 1) { 5405c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 5406c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner break; 5407c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner } 540827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // FIXME: For now only expand i64,chain = MERGE_VALUES (x, y) 540927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Op.ResNo == 0 && Node->getNumValues() == 2 && 541027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Op.getValue(1).getValueType() == MVT::Other && 541127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner "unhandled MERGE_VALUES"); 541227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 541327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Remember that we legalized the chain. 541427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Op.getOperand(1))); 541527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner break; 541658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 541758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 541858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 54194bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 54204bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 54214bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 54224bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 54234bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 542458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 542558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 542658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 542758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5428d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5429d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5430d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5431d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5432d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5433d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5434d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5435d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5436d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5437edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5438edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 54399b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 54409b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 54419b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5442edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5443edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5444edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 544539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 544639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 54473becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 544839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 544939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 54507cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 54517cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 545239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 545339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 545439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 545539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 545639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 545739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 545839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 545939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 546039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 546139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 54623becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 546339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 546439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 54657cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 54667cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 546739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 546839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 546939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 547039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 547139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 547239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 547339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 5474edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 5475acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 54768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 54778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5478acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 5479acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 5480acc398c195a697795bff3245943d104eb19192b9Nate Begeman 5481acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 54828137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 5483acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 5484acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 5485acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 5486acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 5487acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 5488acc398c195a697795bff3245943d104eb19192b9Nate Begeman 54893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 5490466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 5491466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 5492466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 5493466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 5494d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 5495d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 5496d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 5497466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5498466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 5499d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5500d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5501004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 5502004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 5503004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 5504004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 55059f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 55069f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 55079f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5508004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5509004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5510466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5511466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 5512466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 5513466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 5514466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng getIntPtrConstant(IncrementSize)); 55157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 5516dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 5517d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5518d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5519466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5520466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 5521466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 5522466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5523466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 5524466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5525466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5526466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5527466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (!TLI.isLittleEndian()) 5528466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 5529466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 55302e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType EVT = LD->getLoadedVT(); 5531548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 5532b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen if ((VT == MVT::f64 && EVT == MVT::f32) || 5533b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen (VT == MVT::ppcf128 && (EVT==MVT::f64 || EVT==MVT::f32))) { 5534548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 5535548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 5536d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5537548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 5538548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 5539548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 5540548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 5541548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 5542466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5543466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 5544466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 5545d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5546466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 5547466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 5548d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 5549d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 5550466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5551466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5552466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 5553466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5554466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 5555466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 5556466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 5557466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 5558466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 5559466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 5560466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 5561466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 5562466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 5563466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 5564466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 5565466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 5566466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 5567466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 55683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 55693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 55703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 55713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 55723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 55733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 55743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 55753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 55763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 55773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 55783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 55793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 55803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 5581456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 55823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 55833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 558419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 558519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 5586456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 558719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 558819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 55893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 55903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 55919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 55929373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 55939373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 55949373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 559519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 559619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 55979373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 55989373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 559919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 560019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 560119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 56029373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 56039373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 56048137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 560513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 56068137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 560713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 560813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 560913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 56103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 56113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 56123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 56138137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 5614edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 56153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 56163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 56172dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 56188137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 56198137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 56203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 56213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 56228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 56233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 56243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 56258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 5626edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 56273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 56283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 56293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 563035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 56314c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 56324c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 56334c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 56344c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 56354c948eb373779718e5be36d7674382b52114bf65Chris Lattner 56364c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 56374c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 56384c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 56394c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 56404c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 56414c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 56424c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 56434c948eb373779718e5be36d7674382b52114bf65Chris Lattner 564435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 5645f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 5646f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 5647f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 5648f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5649f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 5650f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 5651f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 5652f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5653f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 5654f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5655f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 56561a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 565713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 565813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 565919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 566019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 56617b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 56627b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 56637b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 56647b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 56657b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 56667b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 56677b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 56687b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 56691a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56701a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 56711a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 5672f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 5673f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 567413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Tmp = ExpandBIT_CONVERT(VT, Node->getOperand(0)); 5675f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 567635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 567735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 567835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 5679f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 568027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::READCYCLECOUNTER: { 5681308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 5682308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 5683308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 568427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Tmp = TLI.LowerOperation(Op, DAG); 568527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Tmp.Val && "Node must be custom expanded!"); 568627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Tmp.getValue(0), Lo, Hi); 5687308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 568827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner LegalizeOp(Tmp.getValue(1))); 5689f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 569027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 5691f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 56924e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 56934e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 569456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 569580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 5696f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 5697f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5698f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 56998137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 57008137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 5701f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 5702d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5703f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 5704f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 570580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 570680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 570707dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 570807dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 570907dffd6af673c73352150583150b242a93694f00Chris Lattner break; 571007dffd6af673c73352150583150b242a93694f00Chris Lattner } 571180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5712d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5713161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 57144e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 571556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F32_I64; 571673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f64) 571756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F64_I64; 5718161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f80) 5719161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_F80_I64; 5720161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 5721161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_PPCF128_I64; 572256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 572356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 57244e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 572556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 5726d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 572756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 572880a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 57298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 57308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 57318137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 57328137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 57338137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 57348137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 57358137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 57368137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 57378137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 57388137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 573907dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 574007dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 574107dffd6af673c73352150583150b242a93694f00Chris Lattner break; 574207dffd6af673c73352150583150b242a93694f00Chris Lattner } 574380a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5744d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5745daccea18ca8357b4193ac3ba42a168e650b807e0Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 57464e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 574756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F32_I64; 574872292f07122de9c8bd41b85e94cb2d3235eca0c9Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f64) 574956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F64_I64; 5750161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f80) 5751161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_F80_I64; 5752161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 5753161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_PPCF128_I64; 575456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 575556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 57564e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 575756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 57584e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 575905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 576050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5761348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 576250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 57638137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 576450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 576550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 576650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 576750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 576850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 576950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 577050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 577150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 577250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 577379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 577479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 577579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 577679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 577779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 577879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 577979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 578079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 578179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 578279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 578379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 578479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 578579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 578679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 578779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 578879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 578979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 579079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 5791e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5792348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5793e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 57944759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 57954759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 579605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 579705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 579805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 579905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5800348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 58014759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 58024759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 58034759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5804e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 580556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SHL_I64), Node, 580656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*left shift=unsigned*/, Hi); 5807e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 580805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5809e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 581005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 581150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5812348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 581350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 58148137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 581550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 581650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 581750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 581850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 581950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 582050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 582150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 582250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 582350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5824e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5825348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5826e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 58274759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 58284759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 582905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 583005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 583105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 583205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5833348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 58344759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 58354759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 58364759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5837e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 583856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRA_I64), Node, 583956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng true/*ashr is signed*/, Hi); 5840e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 584105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 584205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 584305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 584450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5845348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 584650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 58478137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 584850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 584950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 585050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 585150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 585250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 585350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 585450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 585550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 585650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5857e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5858348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5859e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 58604759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 58614759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 586205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 586305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 586405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 586505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5866348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 58674759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 58684759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 58694759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5870e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 587156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRL_I64), Node, 587256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*lshr is unsigned*/, Hi); 5873e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 587405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5875e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 5876edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 58778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 58788137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 58798137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 58808137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 58818137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 58828137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 58838137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 58848137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 58858137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 58868137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 58878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 58888137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 58898137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 58908137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 58918137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 589279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 589379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 5894bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 5895bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 5896bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 5897bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 5898551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 589979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5900bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 590179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5902551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 590379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5904bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 590579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5906551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 590784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 59088137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 5909b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5910b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 5911b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 5912b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5913b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5914b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5915b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5916b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5917b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 5918b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5919b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5920b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 5921b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5922b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5923b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5924b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 5925b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5926b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5927b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5928b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5929b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5930b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5931b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5932b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5933b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 5934b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 5935b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5936b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5937b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5938b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5939b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5940b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 5941b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5942b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5943b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 5944b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5945b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 5946b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5947b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5948b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5949b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5950b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5951c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 59527d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 59537d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 59548829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 59558829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 59568829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 59577d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 59587d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 59597d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 59607d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 59613f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 59623f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 5963525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, NVT); 5964525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, NVT); 5965525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 5966c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 5967c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 5968c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 5969525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned BitSize = MVT::getSizeInBits(RH.getValueType()); 5970525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned LHSSB = DAG.ComputeNumSignBits(Op.getOperand(0)); 5971525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned RHSSB = DAG.ComputeNumSignBits(Op.getOperand(1)); 5972525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // FIXME: generalize this to handle other bit sizes 5973525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (LHSSB == 32 && RHSSB == 32 && 5974525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.MaskedValueIsZero(Op.getOperand(0), 0xFFFFFFFF00000000ULL) && 5975525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.MaskedValueIsZero(Op.getOperand(1), 0xFFFFFFFF00000000ULL)) { 5976525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The inputs are both zero-extended. 5977525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 5978525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a umul_lohi. 5979525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::UMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 5980525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 5981525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 5982525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 5983525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU) { 5984525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhu+mul. 5985525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5986525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 5987525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 5988525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 5989525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 5990525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (LHSSB > BitSize && RHSSB > BitSize) { 5991525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The input values are both sign-extended. 5992525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI) { 5993525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a smul_lohi. 5994525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::SMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 5995525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 5996525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 5997525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 5998525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHS) { 5999525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhs+mul. 6000525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6001525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 6002525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6003525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6004525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6005525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6006525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // Lo,Hi = umul LHS, RHS. 6007525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDOperand UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, 6008525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.getVTList(NVT, NVT), LL, RL); 6009525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = UMulLOHI; 6010525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = UMulLOHI.getValue(1); 601156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 601256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 601356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 601456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 6015a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 601656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 60178eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen if (HasMULHU) { 60188eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 60198eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 60208eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 60218eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 60228eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 60238eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 60248eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen break; 60258eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen } 6026c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 60273f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 6028525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // If nothing else, we can make a libcall. 602956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::MUL_I64), Node, 603056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 6031c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 6032c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 603356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 603456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SDIV_I64), Node, true, Hi); 603556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 603656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 603756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UDIV_I64), Node, true, Hi); 603856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 603956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 604056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SREM_I64), Node, true, Hi); 604156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 604256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 604356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UREM_I64), Node, true, Hi); 604456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 60455c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 60461a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 6047161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen Lo = ExpandLibCall(TLI.getLibcallName(VT == MVT::f32 ? RTLIB::ADD_F32 : 6048161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::f64 ? RTLIB::ADD_F64 : 6049161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::ppcf128 ? 6050161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::ADD_PPCF128 : 6051161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL), 605256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 60531a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 60541a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 6055161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen Lo = ExpandLibCall(TLI.getLibcallName(VT == MVT::f32 ? RTLIB::SUB_F32 : 6056161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::f64 ? RTLIB::SUB_F64 : 6057161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::ppcf128 ? 6058161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::SUB_PPCF128 : 6059161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL), 606056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 60611a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 60621a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 6063161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen Lo = ExpandLibCall(TLI.getLibcallName(VT == MVT::f32 ? RTLIB::MUL_F32 : 6064161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::f64 ? RTLIB::MUL_F64 : 6065161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::ppcf128 ? 6066161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::MUL_PPCF128 : 6067161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL), 606856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 60691a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 60701a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 6071161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen Lo = ExpandLibCall(TLI.getLibcallName(VT == MVT::f32 ? RTLIB::DIV_F32 : 6072161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::f64 ? RTLIB::DIV_F64 : 6073161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::ppcf128 ? 6074161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::DIV_PPCF128 : 6075161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL), 607656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 60771a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 60781a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 6079ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (VT == MVT::ppcf128) { 6080ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen assert(Node->getOperand(0).getValueType()==MVT::f32 || 6081ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0).getValueType()==MVT::f64); 6082ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen const uint64_t zero = 0; 6083ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (Node->getOperand(0).getValueType()==MVT::f32) 6084ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::FP_EXTEND, MVT::f64, Node->getOperand(0)); 6085ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen else 6086ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = Node->getOperand(0); 6087ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6088ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6089ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 609056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi); 60911a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 60921a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 609356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPROUND_F64_F32),Node,true,Hi); 60941a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6095c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio case ISD::FPOWI: 6096317096ab3710fda0960be58804e9f80c800340f6Dale Johannesen Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) ? RTLIB::POWI_F32 : 6097317096ab3710fda0960be58804e9f80c800340f6Dale Johannesen (VT == MVT::f64) ? RTLIB::POWI_F64 : 6098161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen (VT == MVT::f80) ? RTLIB::POWI_F80 : 6099161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen (VT == MVT::ppcf128) ? 6100161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::POWI_PPCF128 : 6101161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL), 6102c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Node, false, Hi); 6103c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio break; 610498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 610598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 610698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 610756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 610898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 610956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 6110317096ab3710fda0960be58804e9f80c800340f6Dale Johannesen LC = (VT == MVT::f32) ? RTLIB::SQRT_F32 : 6111161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen (VT == MVT::f64) ? RTLIB::SQRT_F64 : 6112161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen (VT == MVT::f80) ? RTLIB::SQRT_F80 : 6113161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen (VT == MVT::ppcf128) ? RTLIB::SQRT_PPCF128 : 6114161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL; 611556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 611656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 611756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 611856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 611956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 612056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::COS_F32 : RTLIB::COS_F64; 612156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 612298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 612398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 612456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, false, Hi); 612598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 612698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6127966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 6128f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6129f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen SDOperand Tmp; 6130f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Tmp); 6131f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FABS, NVT, Tmp); 6132f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen // lo = hi==fabs(hi) ? lo : -lo; 6133f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::SELECT_CC, NVT, Hi, Tmp, 6134f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo, DAG.getNode(ISD::FNEG, NVT, Lo), 6135f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen DAG.getCondCode(ISD::SETEQ)); 6136f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6137f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6138966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6139966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 6140966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 6141966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6142966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6143966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 6144966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6145966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6146966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6147966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6148966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 6149f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6150f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Hi); 6151f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::FNEG, MVT::f64, Lo); 6152f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FNEG, MVT::f64, Hi); 6153f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6154f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6155966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6156966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 6157966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 6158966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6159966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6160966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 6161966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6162966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6163966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6164966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6165912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 6166912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 6167912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 6168912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 6169912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 6170912095becac923ff614d7b07728eb345ada67765Evan Cheng } 61717df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 61727df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 61737df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 61747df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng MVT::ValueType SrcVT = Node->getOperand(0).getValueType(); 61756e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT != MVT::i64) { 6176ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen static uint64_t zero = 0; 6177ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (isSigned) { 6178ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6179ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6180ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6181ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } else { 6182ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen static uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 }; 6183ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6184ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6185ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6186ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 61876e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // X>=0 ? {(f64)x, 0} : {(f64)x, 0} + 2^32 6188ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 6189ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstant(0, MVT::i32), 6190ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 6191ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstantFP( 6192ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen APFloat(APInt(128, 2, TwoE32)), 6193ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen MVT::ppcf128)), 6194ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi, 6195ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getCondCode(ISD::SETLT)), 6196ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo, Hi); 6197ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6198ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6199ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 62006e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT == MVT::i64 && !isSigned) { 62016e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // si64->ppcf128 done by libcall, below 62026e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen static uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 }; 62036e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SINT_TO_FP, MVT::ppcf128, Node->getOperand(0)), 62046e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 62056e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 62066e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // x>=0 ? (ppcf128)(i64)x : (ppcf128)(i64)x + 2^64 62076e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 62086e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstant(0, MVT::i64), 62096e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 62106e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstantFP( 62116e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen APFloat(APInt(128, 2, TwoE64)), 62126e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen MVT::ppcf128)), 62136e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi, 62146e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getCondCode(ISD::SETLT)), 62156e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 62166e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen break; 62176e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen } 621864f638df568f2849b485cc50836efc734e367fc7Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 62197df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) { 62207df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 622156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F32 : RTLIB::UINTTOFP_I64_F32; 622273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (VT == MVT::f64) 622356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F64 : RTLIB::UINTTOFP_I64_F64; 6224161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (VT == MVT::f80) { 6225161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(isSigned); 6226161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::SINTTOFP_I64_F80; 6227161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 6228161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (VT == MVT::ppcf128) { 622973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen assert(isSigned); 6230161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::SINTTOFP_I64_PPCF128; 623173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 62327df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } else { 62337df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 623456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 62357df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 623656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 62377df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 62387df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 62397df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng // Promote the operand if needed. 62407df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (getTypeAction(SrcVT) == Promote) { 62417df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng SDOperand Tmp = PromoteOp(Node->getOperand(0)); 62427df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Tmp = isSigned 62437df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 62447df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng DAG.getValueType(SrcVT)) 62457df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng : DAG.getZeroExtendInReg(Tmp, SrcVT); 62467df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 62477df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 62484c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng 62494c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng const char *LibCall = TLI.getLibcallName(LC); 62504c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (LibCall) 62514c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Hi); 62524c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng else { 62534c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 62544c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Node->getOperand(0)); 62554c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 62564c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng ExpandOp(Lo, Lo, Hi); 62574c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 62587df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 62597df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 626098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 62613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 626283397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 626383397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 626483397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 626583397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 626613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 626713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 626813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 626983397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 627005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 627105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 627240030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 627305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 62743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 62753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 62767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 62777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 6278c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 6279c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 62807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && "Cannot split non-vector type!"); 6281c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 6282e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman unsigned NumElements = MVT::getVectorNumElements(Op.getValueType()); 6283c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 62845db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6285e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman MVT::ValueType NewEltVT = MVT::getVectorElementType(Op.getValueType()); 62865db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 62875db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Lo = 1 << Log2_32(NumElements-1); 62885db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Hi = NumElements - NewNumElts_Lo; 62895db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 62905db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::ValueType NewVT_Lo = MVT::getVectorType(NewEltVT, NewNumElts_Lo); 62915db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::ValueType NewVT_Hi = MVT::getVectorType(NewEltVT, NewNumElts_Hi); 62925db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6293c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 6294c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 6295c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 6296c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 6297c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 6298c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 6299c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 6300c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6301c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6302c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 6303e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 6304e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 630539833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 6306e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6307e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 6308daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner case ISD::UNDEF: 6309daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Lo = DAG.getNode(ISD::UNDEF, NewVT_Lo); 6310daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Hi = DAG.getNode(ISD::UNDEF, NewVT_Hi); 6311daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner break; 63127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 63137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 63147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 63157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 63169fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman case ISD::INSERT_VECTOR_ELT: { 63179fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman SplitVectorOp(Node->getOperand(0), Lo, Hi); 63189fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman unsigned Index = cast<ConstantSDNode>(Node->getOperand(2))->getValue(); 63199fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman SDOperand ScalarOp = Node->getOperand(1); 63205db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman if (Index < NewNumElts_Lo) 63215db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Lo, Lo, ScalarOp, 63229fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman DAG.getConstant(Index, TLI.getPointerTy())); 63239fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman else 63245db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Hi, Hi, ScalarOp, 63255db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman DAG.getConstant(Index - NewNumElts_Lo, 63265db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman TLI.getPointerTy())); 63279fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman break; 63289fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman } 63296c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner case ISD::VECTOR_SHUFFLE: { 63306c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Build the low part. 63316c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand Mask = Node->getOperand(2); 63326c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SmallVector<SDOperand, 8> Ops; 63336c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 63346c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 63356c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Insert all of the elements from the input that are needed. We use 63366c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // buildvector of extractelement here because the input vectors will have 63376c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // to be legalized, so this makes the code simpler. 63386c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = 0; i != NewNumElts_Lo; ++i) { 63396c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner unsigned Idx = cast<ConstantSDNode>(Mask.getOperand(i))->getValue(); 63406c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 63416c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 63426c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 63436c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 63446c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 63456c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 63466c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 63476c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 63486c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 63496c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.clear(); 63506c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 63516c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = NewNumElts_Lo; i != NumElements; ++i) { 63526c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner unsigned Idx = cast<ConstantSDNode>(Mask.getOperand(i))->getValue(); 63536c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 63546c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 63556c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 63566c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 63576c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 63586c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 63596c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 63606c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 63616c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 63626c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner break; 63636c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 63647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 6365bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 63665db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Node->op_begin()+NewNumElts_Lo); 63675db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &LoOps[0], LoOps.size()); 6368c7029805ef35ce9805931067b841e6af11db382eChris Lattner 63695db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts_Lo, 63707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 63715db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &HiOps[0], HiOps.size()); 6372c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6373c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 63747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 63755db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman // FIXME: Handle non-power-of-two vectors? 63767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 63777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 63787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 63797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 63807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 63817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 63827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 63835db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Lo, &LoOps[0], LoOps.size()); 63846595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 63857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 63867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 63875db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Hi, &HiOps[0], HiOps.size()); 63887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 63896595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 63906595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 6391c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman case ISD::SELECT: { 6392c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand Cond = Node->getOperand(0); 6393c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6394c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand LL, LH, RL, RH; 6395c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(1), LL, LH); 6396c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(2), RL, RH); 6397c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6398c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman if (MVT::isVector(Cond.getValueType())) { 6399c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a vector merge. 6400c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand CL, CH; 6401c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Cond, CL, CH); 64025db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, CL, LL, RL); 64035db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, CH, LH, RH); 6404c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } else { 6405c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a simple select with vector operands. 64065db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, Cond, LL, RL); 64075db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, Cond, LH, RH); 6408c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 6409c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman break; 6410c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 64117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 64127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 64137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 64147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 64157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 64167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 64177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 64187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 64197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 6420826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 64217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 64227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 6423089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::XOR: 6424089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::UREM: 6425089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::SREM: 6426089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::FREM: { 6427c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 6428c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 6429c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 6430c7029805ef35ce9805931067b841e6af11db382eChris Lattner 64315db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, LL, RL); 64325db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, LH, RH); 6433c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6434c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6435826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOWI: { 6436826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6437826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6438826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 64395db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L, Node->getOperand(1)); 64405db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H, Node->getOperand(1)); 6441826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6442826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 6443826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTTZ: 6444826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTLZ: 6445826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTPOP: 6446826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FNEG: 6447826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FABS: 6448826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSQRT: 6449826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSIN: 6450b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FCOS: 6451b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_SINT: 6452b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_UINT: 6453b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::SINT_TO_FP: 6454b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::UINT_TO_FP: { 6455826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6456826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6457826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 64585db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L); 64595db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H); 6460826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6461826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 64627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 64637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 64647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LD->getChain(); 64657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LD->getBasePtr(); 64667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 64677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 64687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 64697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 64707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 64715db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getLoad(NewVT_Lo, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 64725db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned IncrementSize = NewNumElts_Lo * MVT::getSizeInBits(NewEltVT)/8; 6473c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 6474c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 64757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 6476dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 64775db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getLoad(NewVT_Hi, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 6478c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6479c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 6480c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 6481c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 6482c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 6483c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6484c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6485c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 6486c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6487c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 64887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 64897692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 64907692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 649110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand InOp = Node->getOperand(0); 649210a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman if (!MVT::isVector(InOp.getValueType()) || 649310a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman MVT::getVectorNumElements(InOp.getValueType()) == 1) { 649410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 649510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 649610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 649785dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand Ptr = DAG.CreateStackTemporary(InOp.getValueType()); 64987692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 6499786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 650010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman InOp, Ptr, NULL, 0); 650110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, NULL, 0); 65027692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 650310a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 650410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 65055db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT_Lo, Lo); 65065db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT_Hi, Hi); 650710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 65087692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 6509c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6510c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6511c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 651240030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 6513c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 651410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 6515c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 6516c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6517c7029805ef35ce9805931067b841e6af11db382eChris Lattner 651889b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 651989b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 652089b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 65217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) { 65227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && 65237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "Bad ScalarizeVectorOp invocation!"); 6524c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 65257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorElementType(Op.getValueType()); 65267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::getVectorNumElements(Op.getValueType()) == 1); 6527c7029805ef35ce9805931067b841e6af11db382eChris Lattner 65287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 65297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand>::iterator I = ScalarizedNodes.find(Op); 65307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 6531c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6532c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 6533c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 65342332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 6535e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 653639833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 6537e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 65387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 65397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 65407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 65417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 65427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 65437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 65447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 65457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 65467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 65477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 65487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 65497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 65507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 6551826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 65527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 65537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 65547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 65557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 6556c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 65577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 65587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 6559c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 65607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 65617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 65627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 65637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 65647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 65657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 65667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 65677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 65687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 65699e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman case ISD::FPOWI: 65709e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Result = DAG.getNode(Node->getOpcode(), 65719e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman NewVT, 65729e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 65739e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Node->getOperand(1)); 65749e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman break; 65757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 65767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 65777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 65787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 6579c7029805ef35ce9805931067b841e6af11db382eChris Lattner 65807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 65817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 65827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, 65837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LD->isVolatile(), LD->getAlignment()); 65847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 6585c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6586c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 6587c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6588c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 65897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 65907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 65917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 65927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 65937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 65947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 6595c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 65967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 65976595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 65986595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 65996595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 66006595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 66017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 66027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 66037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand EltNum = Node->getOperand(2).getOperand(0); 66047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 66057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 66067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 66077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 66082332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 66097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 66107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 66117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 66126595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 66136595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 66147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: 66157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 6616db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 66177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 6618b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 66197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 66207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 6621b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 6622c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6623c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6624c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 6625c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 66267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 66277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 6628c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 6629c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 6630c7029805ef35ce9805931067b841e6af11db382eChris Lattner 66313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 66323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 66333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 66349c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 66355e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 66365e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 66373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 66383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 6639456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 66403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 66413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6642