LegalizeDAG.cpp revision 9e3d3abd937c9bb79d56d25ec0e0724c7cbba67c
13e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===-- LegalizeDAG.cpp - Implement SelectionDAG::Legalize ----------------===// 2edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 33e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// The LLVM Compiler Infrastructure 43e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 53e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// This file was developed by the LLVM research group and is distributed under 63e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// the University of Illinois Open Source 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/MathExtras.h" 275e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 28a4f0b3a084d120cfc5b5bb06f64b222f5cb72740Chris Lattner#include "llvm/Support/Compiler.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 150c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 151c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 152c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 153c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 154c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 15503c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 157c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 158c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 159c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 160c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 161c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 162c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 163c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 164c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// SplitVectorOp - Given an operand of vector type, break it down into 1667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// two smaller values. 167c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner 16989b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// ScalarizeVectorOp - Given an operand of single-element vector type 17089b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// (e.g. v1f32), convert it into the equivalent operation that returns a 17189b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// scalar (e.g. f32) value. 1727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ScalarizeVectorOp(SDOperand O); 173c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1744352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1754352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1764352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1774352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1784352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1794352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1804352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1814352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1824352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 1834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDNode *isShuffleLegal(MVT::ValueType VT, SDOperand Mask) const; 1844352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 185c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 18600755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 1876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 188750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 189750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 190ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CreateStackTemporary(MVT::ValueType VT); 191ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 19247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer SDOperand ExpandLibCall(const char *Name, SDNode *Node, bool isSigned, 19377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 19477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 19577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 196cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 19735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand ExpandBIT_CONVERT(MVT::ValueType DestVT, SDOperand SrcOp); 198ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 1994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 2006269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 2016269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 2026269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 2035a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 2045a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 2051618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 2061618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 20700b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 208456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 209456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 210e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 211e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2125b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2135b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 214b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ExpandEXTRACT_SUBVECTOR(SDOperand Op); 2164aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2171597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 2183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand getIntPtrConstant(uint64_t Val) { 2193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return DAG.getConstant(Val, TLI.getPointerTy()); 2203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 2304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDNode *SelectionDAGLegalize::isShuffleLegal(MVT::ValueType VT, 2314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand Mask) const { 2324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::getVectorNumElements(NVT) / MVT::getVectorNumElements(VT); 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 248bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 260bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2699c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2709c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2719c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2726a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 276e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// ComputeTopDownOrdering - Compute a top-down ordering of the dag, where Order 277e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// contains all of a nodes operands before it contains the node. 278e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattnerstatic void ComputeTopDownOrdering(SelectionDAG &DAG, 279e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SmallVector<SDNode*, 64> &Order) { 280e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 281e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner DenseMap<SDNode*, unsigned> Visited; 282e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner std::vector<SDNode*> Worklist; 283e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.reserve(128); 28432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 285e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 286e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // entry node) that have no operands. 287e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 288e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner E = DAG.allnodes_end(); I != E; ++I) { 289e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (I->getNumOperands() == 0) { 290e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Visited[I] = 0 - 1U; 291e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(I); 292e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 29332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 29432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 295e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner while (!Worklist.empty()) { 296e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SDNode *N = Worklist.back(); 297e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.pop_back(); 298e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 299e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (++Visited[N] != N->getNumOperands()) 300e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner continue; // Haven't visited all operands yet 301e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 302e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.push_back(N); 303e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 304e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Now that we have N in, add anything that uses it if all of their operands 305e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // are now done. 306e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); 307e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner UI != E; ++UI) 308e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(*UI); 309e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 310e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 311e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner assert(Order.size() == Visited.size() && 312e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.size() == 313e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 314e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner "Error: DAG is cyclic!"); 31532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 31632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3171618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 322ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 323ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 324ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 325ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 32632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 32732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 3280ed44170752b85c3dd3bbf95459dd2668864f5ecChris Lattner SmallVector<SDNode*, 64> Order; 329e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner ComputeTopDownOrdering(DAG, Order); 330ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 331c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 332c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 33332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 33432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 33632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 33732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 34171c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 342c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 3437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizedNodes.clear(); 3443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 346190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3526831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 404c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 405c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 406c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 407c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 408c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 40900755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 4106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 412c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 413c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 414c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 415c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 435c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 437c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 438c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 439c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 440c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 44380edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// HandleOp - Legalize, Promote, or Expand the specified operand as 448c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 449c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 4507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType VT = Op.getValueType(); 4517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (getTypeAction(VT)) { 452c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 4537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Legal: (void)LegalizeOp(Op); break; 4547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Promote: (void)PromoteOp(Op); break; 455c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 4567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(VT)) { 4577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal scalar, expand it into its two component 4587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // pieces. 459c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 46009ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) 46109ec1b058331aadb29a348091611d23892b5c492Chris Lattner break; // Allow illegal target nodes. 462c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 4637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::getVectorNumElements(VT) == 1) { 4647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal single element vector, convert it to a 4657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // scalar operation. 4667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman (void)ScalarizeVectorOp(Op); 467c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Otherwise, this is an illegal multiple element vector. 4697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Split it in half and legalize both parts. 4707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand X, Y; 4717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SplitVectorOp(Op, X, Y); 472c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 473c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 474c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 475c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4779f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 4789f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 4799f87788040786b1bc6530763e4cf7e105bfb2924Evan Chengstatic SDOperand ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 480279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 481004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 482004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 483004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 484004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 485004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 486004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // double. 487004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng MVT::ValueType VT = CFP->getValueType(0); 488004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool isDouble = VT == MVT::f64; 4899e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen ConstantFP *LLVMC = ConstantFP::get(VT==MVT::f64 ? Type::DoubleTy : 4909e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen VT==MVT::f32 ? Type::FloatTy : 4919e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen VT==MVT::f80 ? Type::X86_FP80Ty : 4929e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen VT==MVT::f128 ? Type::FP128Ty : 4939e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen VT==MVT::ppcf128 ? Type::PPC_FP128Ty : 4949e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Type::VoidTy, // error 4959e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CFP->getValueAPF()); 4969f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 4979e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (VT!=MVT::f64 && VT!=MVT::f32) 4989e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Invalid type expansion"); 4999d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen return DAG.getConstant(LLVMC->getValueAPF().convertToAPInt().getZExtValue(), 5009d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen isDouble ? MVT::i64 : MVT::i32); 501279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 502279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 503f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen if (isDouble && CFP->isValueValidForType(MVT::f32, CFP->getValueAPF()) && 504004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Only do this if the target has a native EXTLOAD instruction from f32. 5059e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // Do not try to be clever about long doubles (so far) 506004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, MVT::f32)) { 507004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC,Type::FloatTy)); 508004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng VT = MVT::f32; 509004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Extend = true; 510004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 511004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 512004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 513004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (Extend) { 514004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 515004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng CPIdx, NULL, 0, MVT::f32); 516004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } else { 517004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 518004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 519004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 520004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 522912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 523912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 524912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 525912095becac923ff614d7b07728eb345ada67765Evan ChengSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT::ValueType NVT, 526912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 527068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng MVT::ValueType VT = Node->getValueType(0); 528912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcVT = Node->getOperand(1).getValueType(); 5297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 5307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 531912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 532068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 533912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 534068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 535912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 536912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 537068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 538912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 539068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 540912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 541912095becac923ff614d7b07728eb345ada67765Evan Cheng int SizeDiff = MVT::getSizeInBits(SrcNVT) - MVT::getSizeInBits(NVT); 542912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 543912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 544912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 545912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 546912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 547912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 548068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 549068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 550068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 551068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 552068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 553068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 554912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 555068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 556068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 557068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 558912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 559912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 560912095becac923ff614d7b07728eb345ada67765Evan Cheng} 561912095becac923ff614d7b07728eb345ada67765Evan Cheng 562f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 563f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 564f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 565f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 566f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = ST->getChain(); 567f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = ST->getBasePtr(); 568f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Val = ST->getValue(); 569f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = Val.getValueType(); 570907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int Alignment = ST->getAlignment(); 571907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int SVOffset = ST->getSrcValueOffset(); 572907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (MVT::isFloatingPoint(ST->getStoredVT())) { 573907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a bitconvert of the value to the integer type of the 574907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // same size, then a (misaligned) int store. 575907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 576907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (VT==MVT::f64) 577907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 578907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (VT==MVT::f32) 579907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 580907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 581907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(0 && "Unaligned load of unsupported floating point type"); 582907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 583907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, intVT, Val); 584907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getStore(Chain, Result, Ptr, ST->getSrcValue(), 585907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, ST->isVolatile(), Alignment); 586907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 587907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(MVT::isInteger(ST->getStoredVT()) && 588907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen "Unaligned store of unknown type."); 589f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 590f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType NewStoredVT = ST->getStoredVT() - 1; 591f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewStoredVT); 592f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 593f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 594f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Divide the stored value in two parts. 595f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 596f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo = Val; 597f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Hi = DAG.getNode(ISD::SRL, VT, Val, ShiftAmount); 598f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 599f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Store the two parts 600f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Store1, Store2; 601f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store1 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Lo:Hi, Ptr, 602f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset, NewStoredVT, 603f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->isVolatile(), Alignment); 604f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 605f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 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(); 622907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (MVT::isFloatingPoint(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; 626907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (LoadedVT==MVT::f64) 627907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 628907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 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 } 644907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(MVT::isInteger(LoadedVT) && "Unaligned load of unsupported type."); 645907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType NewLoadedVT = LoadedVT - 1; 646f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewLoadedVT); 647f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int Alignment = LD->getAlignment(); 648f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 649f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ISD::LoadExtType HiExtType = LD->getExtensionType(); 650f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 651f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. 652f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (HiExtType == ISD::NON_EXTLOAD) 653f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio HiExtType = ISD::ZEXTLOAD; 654f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 655f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Load the value in two parts 656f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo, Hi; 657f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (TLI.isLittleEndian()) { 658f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 659f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset, NewLoadedVT, LD->isVolatile(), Alignment); 660f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 661f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 662f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), 663f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 664f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Alignment); 665f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 666f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), SVOffset, 667f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewLoadedVT,LD->isVolatile(), Alignment); 668f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 669f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 670f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 671f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 672f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Alignment); 673f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 674f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 675f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // aggregate the two parts 676f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 677f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Result = DAG.getNode(ISD::SHL, VT, Hi, ShiftAmount); 678f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = DAG.getNode(ISD::OR, VT, Result, Lo); 679f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 680f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 681f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi.getValue(1)); 682f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 683f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ops[] = { Result, TF }; 684f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), Ops, 2); 685f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 686912095becac923ff614d7b07728eb345ada67765Evan Cheng 687a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 688a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 689a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 690a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 6913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 69209ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 69309ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 69409ec1b058331aadb29a348091611d23892b5c492Chris Lattner 695c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 696e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 69745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 698e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 6993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 700e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 70145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 70245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 703c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 704c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 7053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 706c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 70703c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 7083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 71145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 71245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 713718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 714e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 7153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7169373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 7173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 718456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 719456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 7203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 721948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 722948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 723948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 724948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 725948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 72637efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 727948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 7283181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 729948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 730948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 731b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 732948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 733948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 734948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 735948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 736948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 737948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 738948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner assert(TLI.isOperationLegal(Node->getValueType(0), Node->getValueType(0)) && 739948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 740948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 7413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 742d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 743d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 744d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 745f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 746c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 747d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 748c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 749f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 750d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 751d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 752d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 753d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 754d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 755d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 756e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 75739833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 758e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 7593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 7603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 7610d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 7623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 763b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 76403c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 76537efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 76637efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 7670c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 7680c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 769948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 770948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 771948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 772948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 7730c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 7740c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 7750c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 7763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 777bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 778bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 779bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 780bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 781bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 782bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 783bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 784bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 785bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 786bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 787055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov case ISD::FRAME_TO_ARGS_OFFSET: { 788066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 789066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 790066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov default: assert(0 && "This action is not supported yet!"); 791066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Custom: 792066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 793066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov if (Result.Val) break; 794066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov // Fall Thru 795066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Legal: 796066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = DAG.getConstant(0, VT); 797066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 798066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov } 799055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov } 800066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 8012bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 8022bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 8032bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey MVT::ValueType VT = Node->getValueType(0); 8042bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8052bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 8062bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 8078782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 8082bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = DAG.getCopyFromReg(Tmp1, Reg, VT).getValue(Op.ResNo); 8092bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8102bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8112bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 8122bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 8132bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 8142bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 815eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 816eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 817eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 818eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 8198782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8208782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 8218782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 822eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 8238782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8248782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 8258782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 8268782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 8278782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey MVT::ValueType VT = Node->getValueType(0); 8288782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8298782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 8308782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 8318782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 8328782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = DAG.getCopyFromReg(Tmp2, Reg, VT).getValue(Op.ResNo); 8338782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 8348782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8358782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 8368782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 8378782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 8388782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 839eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 840eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 841eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 842eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 8432bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8442bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8452bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 846eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 8472bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8486d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky case ISD::EH_RETURN: { 8492365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 8502365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // The only "good" option for this node is to custom lower it. 8512365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8522365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov default: assert(0 && "This action is not supported at all!"); 8532365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Custom: 8542365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 8552365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov if (Result.Val) break; 8562365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Fall Thru 8572365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Legal: 8582365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Target does not know, how to lower this, lower to noop 8592365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = LegalizeOp(Node->getOperand(0)); 8602365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 8612365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov } 8626d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky } 8632365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 86408951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 86508951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 86608951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 867c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 86808951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 869308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 870c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 871456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 872456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 87369a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 87469a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 8757310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 876f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 877c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 8787310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 879f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 880c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 881f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 882c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 883c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 884c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 885c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 8867310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 8877310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 88813c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 88913c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 89013c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 89113c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 89213c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 893fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 894fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 895fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 896ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 897ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 898fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 899fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 900fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 901fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstantFP(0, VT); 902fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 903fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 904fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 905ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 906fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 907fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 908fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 909fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 910d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 91148b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 91248b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 91348b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 914f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 915d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 916d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 917f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 91810d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 91910d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 92048b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 92110d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 92210d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 92310d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 92413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 92513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 92613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 92713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 92813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 92913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 93013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 93113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 93213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 93313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 93413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 93513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 93613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 937d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 93836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 93936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 94036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 94136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 94236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 94336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 94436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 94536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 946f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 94744c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 948abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 9491ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 950abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 95144c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 952abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 953e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 954abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 955e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 95644c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 957abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 958bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 959abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 960abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 961abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 962abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 963abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 964abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 965abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 966abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 967bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 968abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 969d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 970d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 97144c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned ID = MMI->RecordLabel(Line, Col, SrcFile); 972abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 9731ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey Result = DAG.getNode(ISD::LABEL, MVT::Other,&Ops[0],Ops.size()); 974abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 975e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 976e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 977e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 97836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 979e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 98036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 9819ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 9829ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 983f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 98436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 9859ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 9869ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 9879ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 9889ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 9899ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 9909ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 9919ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 9929ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 99336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 99436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 995f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 99636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 99736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 99836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 99936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1000f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 1001f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 1002abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 1003f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 1004f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 1005abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1006abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1007abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 1008abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 1009abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 1010c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 1011abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1012abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1013abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1014abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 10151ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 10161ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid LABEL node!"); 10171ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 1018abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 1019abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1020abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1021abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 1022c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1023f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 1024a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 1025a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 1026a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 1027f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 1028551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 102936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 1030c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 1031c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 1032c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 1033c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 1034c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 10353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 10363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 10373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1038c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 1039c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 1040c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (Tmp1.Val) 1041c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 1042c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 10433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1044c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 10453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 10463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 10473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 10483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 10493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 10503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 10513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 10523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 10533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 10543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 10553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 10563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 10573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 10583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 10593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 10603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 10613181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 10623181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 1063f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen Result = DAG.getTargetConstantFP(CFP->getValueAPF(), 1064f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CFP->getValueType(0)); 10653181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 10663181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 10673181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 10683181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 10693181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 10703181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 10713181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 10723181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 10733181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 10743181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 10753181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 10763181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 10773181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 1078279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 10793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 10803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 10813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1082040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1083040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1084c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1085c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1086c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1087c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1088c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1089c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1090c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1091c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1092040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1093f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1094040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1095c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1096c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1097f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1098a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1099a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1100fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1101fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1102f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1103fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1104b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1105b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 1106b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val->getNumValues() == Result.Val->getNumValues() && 1107b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1108e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1109f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1110e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1111b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 1112b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 1113e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 1114e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1115e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 1116e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1117e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1118557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1119557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1120557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1121557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1122557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1123557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1124557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1125557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1126557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1127557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1128557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1129557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1130557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1131557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp3 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1132557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1133557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1134557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1135b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1136b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 11372332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 11382332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 11392332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 11402332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 11412332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 11422332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11432332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 11442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1145ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1146ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 1147b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 11482332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 11492332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11502332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 11512332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 11522332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 11532332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 11542332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 11552332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 11562332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 11572332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 11582332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 11592332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 11602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 11622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 11632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 11642332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 11652332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11662332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 11672332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 11682332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 11698d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 11708d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 11718d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 11728d5a894501b7546dee94df03118b90126c420820Chris Lattner SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 11738d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1.getValueType(), Tmp2); 11748d5a894501b7546dee94df03118b90126c420820Chris Lattner 11758d5a894501b7546dee94df03118b90126c420820Chris Lattner unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 11768d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 117751eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType ShufMaskEltVT = MVT::getVectorElementType(ShufMaskVT); 11788d5a894501b7546dee94df03118b90126c420820Chris Lattner 11798d5a894501b7546dee94df03118b90126c420820Chris Lattner // We generate a shuffle of InVec and ScVec, so the shuffle mask should 11808d5a894501b7546dee94df03118b90126c420820Chris Lattner // be 0,1,2,3,4,5... with the appropriate element replaced with elt 0 of 11818d5a894501b7546dee94df03118b90126c420820Chris Lattner // the RHS. 1182bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> ShufOps; 11838d5a894501b7546dee94df03118b90126c420820Chris Lattner for (unsigned i = 0; i != NumElts; ++i) { 11848d5a894501b7546dee94df03118b90126c420820Chris Lattner if (i != InsertPos->getValue()) 11858d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 11868d5a894501b7546dee94df03118b90126c420820Chris Lattner else 11878d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 11888d5a894501b7546dee94df03118b90126c420820Chris Lattner } 1189bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 1190bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ShufOps[0], ShufOps.size()); 11918d5a894501b7546dee94df03118b90126c420820Chris Lattner 11928d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 11938d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1, ScVec, ShufMask); 11948d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = LegalizeOp(Result); 11958d5a894501b7546dee94df03118b90126c420820Chris Lattner break; 11968d5a894501b7546dee94df03118b90126c420820Chris Lattner } 11978d5a894501b7546dee94df03118b90126c420820Chris Lattner 11982332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 11992332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 12002332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 12012332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 12022332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 12032332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 1204f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 1205f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType EltVT = Tmp2.getValueType(); 1206f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 1207f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 1208f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr = CreateStackTemporary(VT); 1209eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 12108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, NULL, 0); 1211eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 1212eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 1213f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 1214f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 1215eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 1216f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 1217f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 1218f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 1219eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 12208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Ch = DAG.getStore(Ch, Tmp2, StackPtr2, NULL, 0); 1221eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 1222466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Ch, StackPtr, NULL, 0); 12232332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12242332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12252332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12262332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1227ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 12284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 12294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 12304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 12314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 12324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1233ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1234ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1235ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1236ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1237ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1238ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1239ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 12404d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 12414d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 12424d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 12434d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 12444d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 12454d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 12464d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 12474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 12484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1249ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1250ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1251ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 125287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 125387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 125487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 125587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 125687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 125787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 12584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 12594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 12604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 12614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 12624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 12634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 12644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 126518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 126618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 126718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 126818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 126918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 127018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 127118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 127218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 127351eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 127418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 127518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 127618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1277bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 127818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 127918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 128018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 128118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 128218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 128318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 128418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 128518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 128618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 128718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 128818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 128918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 129018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 129118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 129218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1293bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 12944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 129518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 12964352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 12974352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 12984352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 12994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 13004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 13014352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 13024352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 13034352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 13044352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 13054352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 13064352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 13074352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 13084352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 13094352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 13104352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 13114352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 131287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 131387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1314384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1315384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 13167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1317384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1318384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 13197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1320384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1321384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 13227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 13237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 13247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 13257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 13267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 13276595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 13286595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 13296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 13306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 13316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 13336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 13346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 133500755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 13366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1337c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1338c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1339c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 13406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 13426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 13436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 13466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1347c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1348b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1349b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1350b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 13516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 13536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1354f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 13556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1356f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 13576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 13586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 13604b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 13614b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 13624b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 13634b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 13646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 13656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 13666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 13676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 13686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 13696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 13706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 13716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 13726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 13736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 13756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 13766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 13776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 13786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 137916cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 13806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 13816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 13826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 13836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 1384718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 13856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 13866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 13876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 13886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 13896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 13916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 13923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 139370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 139470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 139570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 139670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1397f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 139870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1399f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 140070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 140170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 140270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 140370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 140470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1405f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 140670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 140770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1408f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 140970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 14106a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 14114b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 14126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 14136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 14144b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 14154b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 14164b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 14174b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 14184b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 14194b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1420a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 142161bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1422fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1423fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1424fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1425c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1426fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1427c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 14285f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 142961bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1430a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1431903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1432903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1433903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1434903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1435903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 1436903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 143761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, VT); 143861bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 143961bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned Align = cast<ConstantSDNode>(Tmp3)->getValue(); 144061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 144161bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 144261bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 14433e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 14443e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 144561bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 144661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp2 = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 1447c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1448c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1449903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1450903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1451903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 14525f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 14535f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1454c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1455c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1456a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1457903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1458a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1459903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1460a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1461903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1462903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1463c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1464c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1465903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1466a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 146725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1468f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 146925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 147025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 147125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 147225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 147325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 147425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 147525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 147625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 147725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 147825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 147925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 148025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 148125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 148225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 148325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 148425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 148525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 148625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 148725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 148825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 148925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 149025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 149125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 149225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 149325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1494ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 149525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1496f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1497ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1498ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1499c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1500ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1501ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 150225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1503c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1504c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 15066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 15076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 15086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 15096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1510c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1511c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 151237efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 151337efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 151437efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 151537efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 151637efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 151737efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 151837efe6764568a3829fee26aba532283131d1a104Nate Begeman 151937efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 152037efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 152137efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 152237efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 152337efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 152437efe6764568a3829fee26aba532283131d1a104Nate Begeman } 152537efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 152637efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 15273d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 15283d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15293d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 15303d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 15313d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 15323d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 15333d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 15343d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 15353d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 15363d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 15373d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 15383d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 15393d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 15403d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 15413d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 15423d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 15433d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 15443d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 15453d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 15463d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 15473d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 15483d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 15493d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1550acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1551acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 15523d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 15533d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1554acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1555acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1556acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1557acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 1558acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, NULL, 0); break; 1559acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, NULL, 0); break; 1560acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1561acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1562acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 15633d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 15643d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 15653d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // RelocBase is the JumpTable on PPC and X86, GOT on Alpha 15663d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Reloc; 15673d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (TLI.usesGlobalOffsetTable()) 15683d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, PTy); 15693d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng else 15703d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = Table; 1571d063189c0958536aae7ecebec5676541b2cdef9bEvan Cheng Addr = (PTy != MVT::i32) ? DAG.getNode(ISD::SIGN_EXTEND, PTy, LD) : LD; 15723d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, Reloc); 15733d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 15743d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } else { 15753d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), LD); 15763d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 15773d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 15783d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 15793d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1580c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1581c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 15836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 15846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 15856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 15866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 158747e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 158847e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 158947e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 159047e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 159147e9223e06390897c3834f8c527001df392570ffChris Lattner break; 159247e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 159347e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1594f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1595f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1596f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 1597ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 1598f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner MVT::getIntVTBitMask(Tmp2.getValueType())^1)) 1599f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 160047e9223e06390897c3834f8c527001df392570ffChris Lattner break; 160147e9223e06390897c3834f8c527001df392570ffChris Lattner } 1602456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1603456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1604c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 16057cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 16067cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 16077cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1608456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1609456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1610456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1611456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1612456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 16137cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 16147cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 16157cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 16167cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 16177cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 16187cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 16197cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 16207cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 16217cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 16227cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 16237cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 16247cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 16257cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 16267cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 16277cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 16287cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 16297cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 16307cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 16326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 16336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1634750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1635750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1636750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1637181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1638750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1639722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1640722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1641750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1642750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1643750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1644750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1645750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1646750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1650750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1651456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1652181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1653181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1654456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1655456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1656456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1657456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1658181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 16597cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1660c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1661f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1662466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1663466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1664466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 16652d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1666466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1667466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1668466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1669466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1670466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1671466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1672456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1673466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1674466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1675f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1676f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1677f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1678f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1679f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1680f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(LD->getLoadedVT())); 1681f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1682f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1683f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1684f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1685f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1686907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1687907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1688f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1689f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1690f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1691466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1692466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1693466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1694466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1695466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1696466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1697466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1698466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1699466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1700466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1701466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1702466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1703466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1704466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1705d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1706d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1707466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 170841f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1709466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1710f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1711466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1712466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1713466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1714466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1715466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1716466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1717466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 17182e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType SrcVT = LD->getLoadedVT(); 1719466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getLoadXAction(ExtType, SrcVT)) { 1720466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1721466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: 1722466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(SrcVT == MVT::i1 && 1723466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng "Can only promote extending LOAD from i1 -> i8!"); 1724466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1725466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValue(), LD->getSrcValueOffset(), 1726d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman MVT::i8, LD->isVolatile(), LD->getAlignment()); 1727c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1728c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1729c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1730466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1731466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng isCustom = true; 1732466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FALLTHROUGH 1733466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: 1734466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1735466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = Result.getValue(0); 1736466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = Result.getValue(1); 1737456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1738466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (isCustom) { 1739466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 1740466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp3.Val) { 1741466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Tmp3); 1742466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1743466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1744f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 1745f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1746f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1747f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1748f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1749f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(LD->getLoadedVT())); 1750f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1751f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1752f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1753f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp1 = Result.getOperand(0); 1754f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp2 = Result.getOperand(1); 1755907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp1 = LegalizeOp(Tmp1); 1756907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp2 = LegalizeOp(Tmp2); 1757f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1758f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1759456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1760466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1761466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Expand: 1762466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 1763466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 1764466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 1765d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1766d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1767466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1768466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1769466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Load.getValue(1)); 1770466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1771466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1772fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 1773466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Turn the unsupported load into an EXTLOAD followed by an explicit 1774466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // zero/sign extend inreg. 1775466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 1776466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1, Tmp2, LD->getSrcValue(), 1777d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), SrcVT, 1778d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1779466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand ValRes; 1780466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) 1781466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1782466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, DAG.getValueType(SrcVT)); 1783466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 1784466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1785466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1786466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1787c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 17889d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 1789466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 1790466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 1791466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1792466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1793466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 179401ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 179501ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 17965dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 17975dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 17985dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1799c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 18005dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 18015dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 18025dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 18035dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 18045dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 18055dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 18065dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 18075dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 18085dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 18095dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 18105dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 18115dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 18125dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 18135dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 18145dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 18155dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 18165dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 18175dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 18185dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 18195dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 18205dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 18215dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 18223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 18235dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 18243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 18253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 18263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1827edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1828c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1829d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 18307310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1831d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1832f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1833c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 18347310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1835f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1836c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1837f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1838c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1839c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1840c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1841c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 18427310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 18437310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 18447310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 18457310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1846c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 18477310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1848c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 18497310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 18503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 18513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 18523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 18533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 18556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 18566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 18586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 1859f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 18603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 18618e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 186298f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 18638e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 1864f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 18653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 18668e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 18673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1868f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 18697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(Tmp2.getValueType())) { 1870f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1871f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 1872edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 1873edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 1874edf2e8da256496c19390cfd46da80746373e9989Chris Lattner if (!TLI.isLittleEndian()) 1875edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 1876edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 187713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 187813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 187913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 188013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 1881f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 1882f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1883f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 18847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 18857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(0)); 1886f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 18877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 1888ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 1889f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 18907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 1891ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 18927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 18938e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1894f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 1895f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 18967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 18977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 18988e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1899b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1900b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 1901b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 1902b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1903f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 1904f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 1905f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1906f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1907b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 1908b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 1909f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1910f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 1911fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 1912f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1913f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1914f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1915edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 19163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 19178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 19188e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1919c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 19208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 19213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1924c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 19253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 1927f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 19283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 19298e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 19303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 19313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 19324e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 19338e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 19343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 19363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 19376595cb3000d7f5f8e9a76d556aa8609db91b7887Dan Gohman assert(!MVT::isExtendedVT(Node->getOperand(i).getValueType()) && 1938b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 19393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 19403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 19418e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 194213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 194313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 194413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 194513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 1946edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 19473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 19498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 19503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1951c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1952c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 1953f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 1954c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 1955f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 1956f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 19573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 196017c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 19616862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 19626862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 19636862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 19646862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 19656862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 19666862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 19676862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 19686862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 19696862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 197017c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 19713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1972f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 19738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 19748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 19758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 1976d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 1977d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 1978d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 19798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 19808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 1981d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 1982d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 1983d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 1984d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 1985d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 1986d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 19879e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // We generally can't do this one for long doubles. 19889e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (ConstantFPSDNode *CFP =dyn_cast<ConstantFPSDNode>(ST->getValue())) { 1989d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner if (CFP->getValueType(0) == MVT::f32) { 19909d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen Tmp3 = DAG.getConstant((uint32_t)CFP->getValueAPF(). 19919d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen convertToAPInt().getZExtValue(), 19923f6eb7419de437436265831fce92f62498556e08Dale Johannesen MVT::i32); 19939e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 19949e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 19959e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 19969e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (CFP->getValueType(0) == MVT::f64) { 19979d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen Tmp3 = DAG.getConstant(CFP->getValueAPF().convertToAPInt(). 19989d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen getZExtValue(), MVT::i64); 19999e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 20009e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 20019e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 2002d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2003d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2004d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 20058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (getTypeAction(ST->getStoredVT())) { 20068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 20078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 20082efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 20098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 20108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 20118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 20128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 20138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2014f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2015f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2016f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2017f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2018f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2019f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(ST->getStoredVT())); 2020f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2021f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2022f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2023f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2024f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 20258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 20268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 20278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 20288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 20308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 20318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 20328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 20338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 2034d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 2035d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 20368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 20382efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 2039f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 20408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 20418b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 20428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 20438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2044d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, ST->getStoredVT(), 2045d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 20468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 204703c8546ec57523970874917854a2fb77b1ff598eChris Lattner 20488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 20498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 20508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 2051c7029805ef35ce9805931067b841e6af11db382eChris Lattner 20528b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 20538b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 20548b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 20557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (MVT::isVector(ST->getValue().getValueType())) { 20568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 20577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 20587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(0)); 20598b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 20607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2061ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 20628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 20637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2064ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 20657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = LegalizeOp(Node->getOperand(1)); 20668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2067d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 20688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 20698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 20718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 20727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = ScalarizeVectorOp(Node->getOperand(1)); 20738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2074d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 20758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 20768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 20778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 20788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 20808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SplitVectorOp(Node->getOperand(1), Lo, Hi); 20818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng IncrementSize = NumElems/2 * MVT::getSizeInBits(EVT)/8; 20828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2083c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 20848b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ExpandOp(Node->getOperand(1), Lo, Hi); 20857b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 20868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 20878b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!TLI.isLittleEndian()) 20888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2089c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2090c7029805ef35ce9805931067b841e6af11db382eChris Lattner 20918b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2092d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 20937b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 20947b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 20957b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 20967b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 20977b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 20987b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 20997b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 21008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 21018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng getIntPtrConstant(IncrementSize)); 21028b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 21038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2104d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2105d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman if (Alignment > IncrementSize) 2106d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment = IncrementSize; 21078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2108d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 21098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 21108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 21118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 21128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 21138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncating store 21148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(ST->getValue().getValueType()) && 21158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Cannot handle illegal TRUNCSTORE yet!"); 21168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 21178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 21188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The only promote case we handle is TRUNCSTORE:i1 X into 21198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // -> TRUNCSTORE:i8 (and X, 1) 21208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (ST->getStoredVT() == MVT::i1 && 21218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getStoreXAction(MVT::i1) == TargetLowering::Promote) { 21228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Promote the bool to a mask then store. 21238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::AND, Tmp3.getValueType(), Tmp3, 21248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng DAG.getConstant(1, Tmp3.getValueType())); 21258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2126d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, MVT::i8, 2127d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 21288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 21298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 != ST->getBasePtr()) { 21308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 21318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 2132d9731af75b38f30c02f19d6e81333b9c2599ad5fChris Lattner } 2133c7029805ef35ce9805931067b841e6af11db382eChris Lattner 21348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType StVT = cast<StoreSDNode>(Result.Val)->getStoredVT(); 21358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getStoreXAction(StVT)) { 21368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2137f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2138f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2139f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2140f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2141f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2142f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(ST->getStoredVT())); 2143f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2144f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2145f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2146f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2147f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 21488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 21498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 21508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 21518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 21528b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 21533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 21543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2155f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 215695762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 215795762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2158c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 215995762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2160140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2161140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2162c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2163c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2164c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2165456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2166140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2167140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2168456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2169456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2170c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2171c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 2172c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2173c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2174140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2175456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2176140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 21774f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 21784f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 21794f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2180c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 21814f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2182c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 21834f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2184c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2185c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 21864f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2187456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2188140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2189456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2190456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2191456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2192c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2193c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2194c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 2195456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2196140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2197140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2198140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2199c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2200140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2201140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2202140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2203456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2204456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2205456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2206456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2207140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2208140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 22094f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 22104f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 22114f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 22124f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 22134f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 22144f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 22154f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2216140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2217140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2218140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2219140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 222051b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 222151b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2222c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2223f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2224f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2225f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 22266a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 22276a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 22286a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 22296a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2230f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2231f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 22326a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 22336a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2234f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2235f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 223649c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 223749c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 223849c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 22396a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 22406a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2241c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2242f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 22432ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 224447e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 224547e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 224647e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 224747e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 224847e9223e06390897c3834f8c527001df392570ffChris Lattner break; 224947e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 225047e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2251b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 2252ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 2253b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner MVT::getIntVTBitMask(Tmp1.getValueType())^1)) 2254b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 225547e9223e06390897c3834f8c527001df392570ffChris Lattner break; 225647e9223e06390897c3834f8c527001df392570ffChris Lattner } 22573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 22582ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 225955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2260c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2261456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2262b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 226355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2264456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2265456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2266456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2267456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2268456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2269456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 22709373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 22719373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 22729373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 22739373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 22749373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 22759373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 22769373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 22779373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 22789373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 22799373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 228055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 228155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 228255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 228355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 228455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 228541f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 228641f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 228741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 228841f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 2289456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2290456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 229155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2292456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2293456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 229455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 229555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 229655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 229755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 229855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 229955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 230055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 230155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 230255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 230355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 23043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2305750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2306750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2307750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 23089373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 23099373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2310750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 23119373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2312750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2313750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2314750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2315750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2316750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2317750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2318750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2319750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2320750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2321750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2322750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2323750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2324750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2325750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2326750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2327750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2328750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2329750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 23309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 23319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 23329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2333750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 23343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2335750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2336750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2337750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2338750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2339750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2340750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2341750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2342750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2343750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2344750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 23453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2347b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 234873e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2349456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2350456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2351456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2352456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2353456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 23542b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2355456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 23562b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 23572b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2358456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2359b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2360ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2361ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2362ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2363ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2364ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 236500755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner MVT::ValueType OldVT = NewInTy; OldVT = OldVT; 2366ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2367ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2368ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2369ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2370ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2371ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2372ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2373ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2374ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2375ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2376ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 23771ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2378ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2379ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2380ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2381ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2382ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2383ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2384ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2385ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2386c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2387c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 23882b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2389433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 23905e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2391ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2392b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2393b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2394b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2395b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2396b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2397b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 23982b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2399b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2400b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 24013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2402e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 2403e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 2404e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 2405deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 2406e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 2407e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 2408e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 2409e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 2410e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 2411e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2412deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 2413e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2414e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2415deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 2416e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2417e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2418e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 2419edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 2420e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2421272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2422272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2423272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 24246814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 24256814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 24266814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 2427fa9aa2b424d0a7d9f7201f8fdcf5ccfa05db3a80Chris Lattner ExpandOp(Node->getOperand(3), Tmp4, HiPart); 24286814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 24296814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2430e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2431e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2432e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2433e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2434e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2435272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2436272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2437272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2438272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2439272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2440272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2441272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2442272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2443272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2444272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2445e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2446e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2447e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 244855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 244955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 245055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2451456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2452456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2453456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 245455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2455c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, Tmp5); 2456456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2457456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2458456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2459456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 246055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 246155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2462e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2463e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2464e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2465a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 246647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListTy Args; 246747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 2468e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 24693bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2470e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2471d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp2; Entry.Ty = IntPtrTy; 247247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2473dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2474dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2475dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2476dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2477dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2478dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2479d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp3; Entry.Ty = Type::Int32Ty; Entry.isSExt = true; 248047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2481d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp4; Entry.Ty = IntPtrTy; Entry.isSExt = false; 248247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2483e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2484e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2485e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2486e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2487b25fe8267182662750dcb76a70a20f4b14a5568dAnton Korobeynikov Entry.Ty = IntPtrTy; 2488b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp2; Args.push_back(Entry); 2489b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp3; Args.push_back(Entry); 2490b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp4; Args.push_back(Entry); 2491e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2492e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2493e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2494e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 249545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2496e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 249747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(Tmp1, Type::VoidTy, false, false, CallingConv::C, false, 2498e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2499456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 250055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 250155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2502e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2503e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2504e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 250552d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 25065b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 25075b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 25085b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2509f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 251084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 251184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 251284f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 251384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 251484f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2515c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2516f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 25172c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 251805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 251905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 252005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2521456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2522456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2523456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2524456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2525456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 252605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2527456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 252805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 252905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 253012f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 253105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2532269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 253305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 253405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 253505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 253605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 253705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 25382c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 25392c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 25402c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 25412c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 25422c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 254384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 25442c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 25452c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 25463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 25473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 25483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2549c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2550c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 25513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 25523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 25533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 25543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 25553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 255603c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 255703c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 255803c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 255901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 256001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 256101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 256201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 25633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2564f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2565f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2566f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2567f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2568f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2569f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2570f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2571f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2572f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2573c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2574c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2575456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2576e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2577bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2578456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2579456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2580456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2581456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 258257030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2583bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 258452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (Node->getValueType(0) == MVT::i32) { 258552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng switch (Node->getOpcode()) { 258652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng default: assert(0 && "Do not know how to expand this integer BinOp!"); 258752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::UDIV: 258852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::SDIV: 258956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UDIV 259056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 259152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 259247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = Node->getOpcode() == ISD::SDIV; 259356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 259452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng }; 259552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 259652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 259752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 2598bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 2599bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 2600bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 2601bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 260251eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(Node->getValueType(0)); 2603bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 2604bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner for (unsigned i = 0, e = MVT::getVectorNumElements(Node->getValueType(0)); 2605bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner i != e; ++i) { 2606bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand Idx = DAG.getConstant(i, PtrVT); 2607bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand LHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, Idx); 2608bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand RHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, Idx); 2609bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner Ops.push_back(DAG.getNode(Node->getOpcode(), EltVT, LHS, RHS)); 2610bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2611bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, Node->getValueType(0), 2612bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 2613bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 2614bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2615cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 2616cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 2617cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 2618cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 2619cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 2620cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 2621cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 2622cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2623cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 2624cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 2625cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 2626cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 2627cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 2628cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 2629cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 2630cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 2631cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2632cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2633cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2634e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 26353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2636a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2637a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 2638a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2639a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 2640a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 2641a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 2642a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2643a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2644a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 2645a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2646a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2647a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2648a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2649a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2650a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2651a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2652a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 2653a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 2654a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2655a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 26568f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 2657a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 2658912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 2659636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 2660636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 2661636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 2662636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 2663636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 2664912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 2665636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 26668f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 26678f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 26688f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 26698f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 26708f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 26718f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 26728f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 26738f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 26748f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 26758f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 26768f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 26778f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 26788f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 26798f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 26808f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 26818f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 26828f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 26838f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 26848f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 2685912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType NVT = 2686912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 2687912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 2688912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 2689912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 2690a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2691a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2692912095becac923ff614d7b07728eb345ada67765Evan Cheng } 2693a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2694a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2695551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 2696551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 2697551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2698551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2699551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2700551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2701551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2702551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2703551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2704551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2705edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2706551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 2707551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 2708551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2709551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2710551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 2711551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2712551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2713551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2714551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2715551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2716551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2717551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 2718419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 2719419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 2720419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 2721419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 2722419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 2723419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 2724456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2725456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2726456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 2727419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 2728419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 2729419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 2730419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2731419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 2732419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 2733419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 2734419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 2735419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 2736419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 2737456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 2738419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2739419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2740419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2741419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2742419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 2743c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 2744c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 274501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2746c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2747c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2748456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2749c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2750456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 2751456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2752456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2753456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 275457030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 2755c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2756456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2757456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2758456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2759456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 276057030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 27614c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner case TargetLowering::Expand: 27626b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 276347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 27644c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner if (MVT::isInteger(Node->getValueType(0))) { 276552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (TLI.getOperationAction(DivOpc, Node->getValueType(0)) == 276652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 276752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 276852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng MVT::ValueType VT = Node->getValueType(0); 27696b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 277052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 277152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 277252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 277352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng assert(Node->getValueType(0) == MVT::i32 && 277452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 277556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 277656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 277752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 277856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 277952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 27804c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner } else { 27814c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner // Floating point mod -> fmod libcall. 278256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getValueType(0) == MVT::f32 278356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::REM_F32 : RTLIB::REM_F64; 27844c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner SDOperand Dummy; 278556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 278656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 2787c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2788c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2789c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2790c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2791acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 2792acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2793acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2794acc398c195a697795bff3245943d104eb19192b9Nate Begeman 27955c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2796acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 2797acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2798456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2799456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2800456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2801acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2802c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2803c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 2804456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 2805456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2806456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2807456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 2808456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 2809456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 2810456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 2811456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2812456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2813acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2814acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 2815466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 2816acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 2817466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 2818acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 2819acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 2820acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 2821acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 2822acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 28238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 28248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 2825acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 2826466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 2827456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 2828acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 2829acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2830acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2831acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2832acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 2833acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 2834acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 2835456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 2836456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 2837acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2838acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2839acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 2840acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2841acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 2842acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 2843acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2844acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 2845acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2846456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2847456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2848456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2849acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2850c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 2851c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 2852456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2853456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2854456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2855456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2856acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2857acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2858acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 2859acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 2860466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SVD = cast<SrcValueSDNode>(Node->getOperand(3)); 28618b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SrcValueSDNode *SVS = cast<SrcValueSDNode>(Node->getOperand(4)); 2862466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, SVD->getValue(), 2863466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SVD->getOffset()); 28648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, SVS->getValue(), 28658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SVS->getOffset()); 2866acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2867acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2868acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2869acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2870acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 2871acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2872acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2873acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2874acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 2875acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2876456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2877456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2878456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2879acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2880c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2881456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2882456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 2883456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2884456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2885acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2886acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2887acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 2888acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2889acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2890acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2891acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2892acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 2893acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2894acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2895acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2896c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2897c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2898acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 2899acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2900456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2901456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2902456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2903456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2904acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2905acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2906acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2907acc398c195a697795bff3245943d104eb19192b9Nate Begeman 290835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 290935ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 291035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 291135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2912c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2913c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2914c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 2915c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 2916c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2917c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 2918c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2919c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 2920c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 2921c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 2922c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2923c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 2924c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 2925c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2926c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 2927c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 2928c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2929c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 293035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 293135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 2932d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2933d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2934d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2935456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2936456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 2937456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2938c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2939456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2940456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 2941456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 2942456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2943b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned DiffBits = MVT::getSizeInBits(NVT) - MVT::getSizeInBits(OVT); 2944456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2945456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2946456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2947456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2948456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 2949456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2950456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2951456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 2952456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 2953456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2954d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 2955d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2956d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 2957691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2958691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2959691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2960691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2961691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2962910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 2963691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 2964c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2965910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 2966335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 2967335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 2968335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel if (Tmp1.Val) { 2969335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 2970335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 2971910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 2972691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2973691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 2974691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 2975691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2976edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 2977edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 2978691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2979691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 2980691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 2981456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2982691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2983691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 2984691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2985691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2986691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 29877cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 2988b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 29897cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 299000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2991910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1); 2992691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2993691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2994456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 299500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 2996b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 2997b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(OVT), NVT)); 2998691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2999691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3000691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3001691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3002691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 3003456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 3004691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3005691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3006691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 300700b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 30082c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 30092c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 30102c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 3011da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3012da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3013da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 30142c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 30152c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3016456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3017456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 301859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 301959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 30202c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 3021c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 302259ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 302359ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 302459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 302559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 30262c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 30272c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 3028456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3029456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 3030456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 30312c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 30322c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 3033456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 3034f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3035f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 30364af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 30374af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 30384af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 30397cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 30404af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 30414af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 3042f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3043f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 3044f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 3045f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 3046f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 3047f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 304856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3049f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 305056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 305156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SQRT_F32 : RTLIB::SQRT_F64; 305256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 305356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 305456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 305556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 305656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 305756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::COS_F32 : RTLIB::COS_F64; 305856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 3059f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3060f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 30612ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 306256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 306356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 3064f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3065f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 30662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 30672c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 30682c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 30692c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 30706ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 30716ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner // We always lower FPOWI into a libcall. No target support it yet. 307256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getValueType(0) == MVT::f32 307356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::POWI_F32 : RTLIB::POWI_F64; 30746ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 307556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 307656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 30776ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 30786ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 307935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 308067993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 308135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 30827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::isVector(Op.getOperand(0).getValueType())) { 30837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 30847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 30857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 30867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 30877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(0)); 30887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 30897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 30907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 30917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 30927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 309307a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 30947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 30957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 30967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 30977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 30987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 30997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 31007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 31017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 31027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 31037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 31047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 31057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 310667993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 310735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 310835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 310935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 311035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 311135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 311235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 311335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 311435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3115c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 311635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 311735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 311835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 311935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3120d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 31212c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3122fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3123fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3124fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 3125fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3126fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3127d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 3128fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 3129fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 3130456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3131456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3132456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3133456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3134456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3135c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3136456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3137456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3138456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3139456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3140456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3141fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 31426269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 31436269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 31446269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 3145456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3146fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 3147fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 3148fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 3149fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 3150fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 31515b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 3152fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3153fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3154fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 3155fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 3156fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3157fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3158c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3159fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 3160c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 3161c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 3162fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 3163c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 3164c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 3165fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3166c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3167c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 3168fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3169fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3170fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3171fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3172fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3173fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3174fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3175fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3176c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3177fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3178fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3179fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3180fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3181fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3182fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3183fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3184fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3185fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3186fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3187fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3188fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3189fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3190fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3191d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3192fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3193fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3194fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3195fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3196f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3197f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 31981618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 31991618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3200456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3201456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3202456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3203456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3204c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3205456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3206456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3207456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3208456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3209456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3210456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3211456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3212456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3213456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 32141618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3215d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3216d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 3217d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 3218d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 3219d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman unsigned ShiftAmt = MVT::getSizeInBits(Node->getValueType(0))-1; 3220d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getConstantFP((double)(1ULL << ShiftAmt), VT); 3221d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 3222d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3223d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3224d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 322501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3226d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3227d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3228d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 3229456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3230456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3231d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3232d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3233d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3234d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 32351618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3236fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 32376af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 32386af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng // Convert f32 / f64 to i32 / i64. 32396af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 324056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 32416af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 32426af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_SINT: 32436af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 324456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 324556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 32466af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 324756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 324856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 32496af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 32506af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_UINT: 32516af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 325256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 325356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 32546af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 325556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 325656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 32576af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 32586af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 32596af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 32606af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 326156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 326256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 32636af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 32646af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3265fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3266c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3267c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3268c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3269fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3270fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3271fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3272d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3273ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen case ISD::FP_EXTEND: 32745411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 32755411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MVT::ValueType newVT = Op.getValueType(); 32765411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MVT::ValueType oldVT = Op.getOperand(0).getValueType(); 32775411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen if (TLI.getConvertAction(oldVT, newVT) == TargetLowering::Expand) { 3278ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen // The only way we can lower this is to turn it into a STORE, 32795411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen // LOAD pair, targetting a temporary location (a stack slot). 32805411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen 32815411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen // NOTE: there is a choice here between constantly creating new stack 32825411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen // slots and always reusing the same one. We currently always create 32835411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen // new ones, as reuse may inhibit scheduling. 3284ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen MVT::ValueType slotVT = 3285ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen (Node->getOpcode() == ISD::FP_EXTEND) ? oldVT : newVT; 3286ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen const Type *Ty = MVT::getTypeForValueType(slotVT); 32875411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty); 32885411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 32895411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MachineFunction &MF = DAG.getMachineFunction(); 32905411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen int SSFI = 32915411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MF.getFrameInfo()->CreateStackObject(TySize, Align); 32925411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 3293ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen if (Node->getOpcode() == ISD::FP_EXTEND) { 3294ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), 3295ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen StackSlot, NULL, 0); 3296ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result = DAG.getExtLoad(ISD::EXTLOAD, newVT, 3297ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result, StackSlot, NULL, 0, oldVT); 3298ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen } else { 3299ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 3300ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen StackSlot, NULL, 0, newVT); 3301ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result = DAG.getLoad(newVT, Result, StackSlot, NULL, 0, newVT); 3302ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen } 33035411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen break; 33045411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 3305849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3306849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen // FALL THROUGH 330713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 33083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 33093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 33103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3311456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 33123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 33133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3314c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 33153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 331603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 331703c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 331813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3319c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3320c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 332113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 33221713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 33231713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 332413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 332523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 332623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 332703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 332803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 33291713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 333013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 33311713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 333215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 333315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 33341713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 333503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 33361713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 33371713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 33381713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 33391713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 33401713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 334103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 3342f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 3343f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 3344f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 334503c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 33463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 33473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 33480f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 334923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 33500f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 335115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 335245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 335345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 335445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 335555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 335655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 335755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3358c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 335955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 336055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 336145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 336223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 336345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 336445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 336545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 336645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 336727ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 336845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 336945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 337045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 337145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 337245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 33732d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 337445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 337545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 337645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 337745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 337845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 337945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 338044b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty); 3381d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 338245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 3383edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 338444b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner MF.getFrameInfo()->CreateStackObject(TySize, Align); 338545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 33868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 33878b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StackSlot, NULL, 0, ExtraVT); 33885f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 3389466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, StackSlot, NULL, 0, ExtraVT); 339045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 339145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 339245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 339355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 339445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 33950f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 33963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 339736397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 339836397f50343639ce9a25996f2d790c656791ab92Duncan Sands SDOperand Ops[6]; 339936397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 340036397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 340136397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 340236397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 340336397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 340436397f50343639ce9a25996f2d790c656791ab92Duncan Sands assert(Result.Val && "Should always custom lower!"); 3405f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands 3406f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Since trampoline produces two values, make sure to remember that we 3407f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // legalized both of them. 3408f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Tmp1 = LegalizeOp(Result.getValue(1)); 3409f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Result = LegalizeOp(Result); 3410f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 0), Result); 3411f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3412f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands return Op.ResNo ? Tmp1 : Result; 341336397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 341445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 3415456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 34164ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 34174ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 34184ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 3419456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 3420456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3421456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 34223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 342345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 342445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 342545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 34263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 34273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 34283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 34298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 34308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 34318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 34328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 343303c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 343403c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 343571c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 343603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 343703c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 343803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 343903c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 344003c8546ec57523970874917854a2fb77b1ff598eChris Lattner 344103c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 344203c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 344303c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 344403c8546ec57523970874917854a2fb77b1ff598eChris Lattner 344540030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 34466fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 344745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 344803c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 3449d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 3450d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 345103c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 3452e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 345339833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 3454e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 345503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 345603c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 3457fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3458fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 3459fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 346003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 3461ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 3462ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 3463ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 3464ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 346503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 346603c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 346703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 346803c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 346903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 347003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3471ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 347282fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 3473c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 34747cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 34757cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 347682fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 3477fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 347803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 347903c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 348003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 348103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 348203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 348303c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 348403c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 348503c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 348603c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3487e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 3488e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 3489e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 3490e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 3491e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 349203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 349379e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 349479e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 3495e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 349603c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 349703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 34988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 34998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 350013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 35018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 35028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 35038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 35048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 3505456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 35068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 35088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 35098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 35108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 35118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 3512595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 351315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 351413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 351523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 351623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 35178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 35198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 352035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 352135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 352235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 352335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 352435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 35258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 35268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 35278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 35288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 35298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 35308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 35318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 35328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 3533456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 353415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 35358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 35378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 35398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 35408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 35418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 35428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 354377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 3544456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 35458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 35478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 35488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 35498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 35508b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 355115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 355215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 35538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 355423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 355523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 355677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 355777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 35588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 356077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 356177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 356277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 356377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 356415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 356515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 356677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 35678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 35688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 35705e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 35715e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 35725e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 35735e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 35745e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 35758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 35768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 35778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 35788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 35790b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 3580456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 35818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 35838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 35848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 35858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 35868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 3588d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 3589d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 3590d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 3591d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 3592d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 3593d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 3594c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 3595b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 3596b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 3597d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 3598d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3599d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3600d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 36018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 36028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 36032c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 36042c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 36052c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 36062c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 36072c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 36082c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 36092c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 36102c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 36112c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 36122c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 3613da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3614da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3615da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 3616da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3617da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 3618da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3619456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 362015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 362115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3622da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 3623da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 36248b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 36258b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 36268b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 36278b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 36288b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 36298b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 36308b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 36318b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 36328b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 36338b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 36348b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 36358b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 363603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 363703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 363803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 36390f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 36408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 36410f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 36420f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 364301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 36440f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 36450f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 36460f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 36470f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 36480f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 364901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 365001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 365101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 365201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 365301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 365401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 365501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 365601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 365701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 365801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 365901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 366001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 36618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 36628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 366301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 366415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 366515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 36660f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 36670f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 36688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 36698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 36708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 36718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 36728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 36738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 367415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 367515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 367615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 367715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 36788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 36798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 36808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 36818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 36828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 368315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 368415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 36858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 368601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 368701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3688a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 368901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 3690ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 3691ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3692ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3693ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3694ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3695ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = PromoteOp(Node->getOperand(0)); 3696ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3697ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3698ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3699ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 3700ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 3701ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3702ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3703ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3704ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3705ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = PromoteOp(Node->getOperand(1)); 3706ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3707ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3708ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3709ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 371001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 371101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 371201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 3713a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 371401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 371501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 371601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 37178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 37188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 37198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 37208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 37218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 37228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 37238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 372423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 372523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 37268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 37278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 37298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 37308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3731456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 37328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 37348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 37358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 373615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 373715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3738456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 37398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 37418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 37428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 374323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3744456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 37458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37460aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 37470aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 3748456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 3749456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 37500aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 37510aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 37520aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 37530aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 3754466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 37550aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 3756466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 37570aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 37580aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 37590aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 37600aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 37610aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 37628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 37638b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 37640aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 3765466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 37660aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 37670aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 3768456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 37690aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 37700aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 3771466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 3772466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 377362f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 377462f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 377562f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 377662f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 377755b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 3778d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getLoadedVT(), 3779d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 3780d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 37814c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 3782456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 37834c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 3784466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 378503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 378603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 378703c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 3788456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 378903c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 37909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 37919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 37929373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 37939373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 3794456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 37959373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 3796d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3797d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 3798d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3799d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3800d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3801b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3802b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), 3803d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 3804d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3805fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3806fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3807fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3808456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 3809456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 3810fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 3811fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3812456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 3813fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3814fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 3815fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3816fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3817456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 3818d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 3819b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 3820b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 382100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3822b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), NVT), Tmp1); 3823fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3824fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3825fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 382600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 3827b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3828b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), NVT)); 3829fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3830fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 3831fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 38327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 38337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 38346595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 38354aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 38364aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 38374aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 383803c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 383903c8546ec57523970874917854a2fb77b1ff598eChris Lattner 384003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 3841456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3842456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 3843456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 3844456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3845456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 384603c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 384703c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 384803c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 38493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 38507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 38517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 38527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 38537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 38547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 38551597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 38561597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 38571597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 38581597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 38597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Idx = Op.getOperand(1); 38601597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 38611597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDNode *InVal = Vec.Val; 38627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = InVal->getValueType(0); 38637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(TVT); 38641597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 38657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 38667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 38677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 38687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 38697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 38707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Tmp3 = TLI.LowerOperation(Op, DAG); 38717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 38727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 38737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 38747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 38757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 38767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 38777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 38787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 3879844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 38807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 38817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 38827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 38837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 38847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 38857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 38867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 38871597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 38887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 38897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 38907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 38911597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 38921597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 38931597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (CIdx->getValue() < NumElems/2) { 38941597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 38951597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 38961597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 38977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, 38987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 38991597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 39007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 39011597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 39021597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 39037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 39041597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 39057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 39067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 39077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand StackPtr = CreateStackTemporary(Vec.getValueType()); 39087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 39097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 39107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 39117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 39127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 39137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 39147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 39157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 39167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 39171597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 39187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 39191597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 39201597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 39217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 39226595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 39237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDOperand Op) { 39246595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 39256595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 39266595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 39276595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 39286595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 39297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(Vec.getValueType()); 39306595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 39316595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (NumElems == MVT::getVectorNumElements(Op.getValueType())) { 39326595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 39337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 39346595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 39356595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 39366595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 39376595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 39386595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 39396595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 39406595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 39416595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 39426595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 39436595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 39446595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 39456595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 39466595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 39476595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 39487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 39494aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 39504aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 3951750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 3952750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 3953750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 3954750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 3955750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 3956750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 3957750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 3958750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 3959750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 3960750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand Tmp1, Tmp2, Result; 3961750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3962750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 3963750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 3964750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 3965750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 3966750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3967750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 3968750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 3969750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 3970750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3971750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 3972750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 3973750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 3974750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 3975750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3976750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 3977750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 3978750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 3979750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 3980750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3981750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 3982750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3983750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3984750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 3985750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 3986750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 3987750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 3988750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 3989750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 3990750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 3991750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3992750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 3993750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3994750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3995750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3996750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3997750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3998750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 3999750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4000750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 4001750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4002750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4003750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4004750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4005750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 40062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 40072b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 40082b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 40092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 401056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 40112b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 40122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 40132b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 401456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 40152b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 40172b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 401856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 40192b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40202b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 40212b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 402256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 40232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40242b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 40252b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 402656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 40272b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40282b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 40292b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 403056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 40312b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 40332b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 403456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 40352b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 4037d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 4038d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 40392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 40405efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 40412b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40422b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 404356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 40442b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 40452b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 40462b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 404756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 40482b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 40492b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 405056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 40512b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40522b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 405356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 40542b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40552b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 405656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 40572b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40582b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 405956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 40602b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 406156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 406256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 406356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 40642b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 40652b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 40662b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 40672b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 40682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 406956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Tmp1 = ExpandLibCall(TLI.getLibcallName(LC1), 407047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4071b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 40722b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4073d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 407456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 40752b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), Tmp1, Tmp2, CC); 407656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LHS = ExpandLibCall(TLI.getLibcallName(LC2), 407747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4078b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 40792b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHS, Tmp2, 4080d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 40812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 40822b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 40832b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 40842b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 40852b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 40862b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 40872b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 40882b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4089750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 4090750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 40912b49c500838666dd0186d021389d4dd70ffda240Evan Cheng ExpandOp(RHS, RHSLo, RHSHi); 4092750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4093750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4094750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4095750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4096750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4097750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4098750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4099750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4100750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4101750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4102750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4103750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4104750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4105750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4106750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4107750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4108750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4109750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4110750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4111750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4112750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4113750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4114750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 4115750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4116750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4117750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4118750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4119750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4120750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4121750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4122750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4123750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 41242e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 41252e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4126750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4127750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4128750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4129750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4130750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4131750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4132750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4133750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4134750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4135750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4136750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4137750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4138750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4139750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4140750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4141750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4142750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 41432e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 41442e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC, 41452e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng false, DagCombineInfo); 41462e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 41472e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 41482e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 41492e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 41502e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 41512e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi, CC); 41522e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 41532e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 41542e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 41552e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if ((Tmp1C && Tmp1C->getValue() == 0) || 41562e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 0 && 41572e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 41582e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 41592e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 1 && 41602e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 41612e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 41622e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 41632e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 41642e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 41652e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 41662e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 41672e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 41682e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 41692e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 41702e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 41712e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result=DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 41722e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 41732e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 41742e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 41752e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 41762e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4177750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4178750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 41792b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4180750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4181750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4182750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4183750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 418435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 4185232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 4186232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 418735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 418835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 418935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 4190ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(DestVT); 419135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 419235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 41938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, NULL, 0); 419435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 4195466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 419635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 419735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 41984352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 41994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 42004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 42014352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand StackPtr = CreateStackTemporary(Node->getValueType(0)); 4202786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 42038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0); 4204466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, NULL, 0); 42054352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 42064352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 42074352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4208ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 420907a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4210ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4211ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4212ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 421387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4214033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4215ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 421687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 4217033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 4218033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 42192eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 42202eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 42212eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 42222eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 42232eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4224033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4225033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 422689a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4227033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4228ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4229033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 423087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 42312eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 42322eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 42332eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 42342eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 42352eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 42362eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4237ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4238ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4239ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4240ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4241ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4242ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4243ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4244ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4245ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4246ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4247ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 42482eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4249ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 4250ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4251ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 4252ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 4253ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4254033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4255ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4256ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 4257f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CV.push_back(ConstantFP::get(OpNTy, V->getValueAPF())); 4258ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 4259ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 4260b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 4261ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4262ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 4263ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4264ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4265ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 42669d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 4267ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 4268466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 4269ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 42702eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 42712eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 42722eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 42732eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 42742eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 427551eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman SDOperand Zero = DAG.getConstant(0, MVT::getVectorElementType(MaskVT)); 42762eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 4277bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4278bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 4279033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 42802eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 42814352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 42822eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 42832eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 42842eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 42852eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 42862eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 42872eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 42882eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 42892eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 42902eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 42912eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 42922eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4293033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 4294033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 4295033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 4296033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 4297033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 4298033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 4299033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 4300033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 4301033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4302033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4303033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 4304033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 430551eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MaskVec[*II] = DAG.getConstant(i, MVT::getVectorElementType(MaskVT)); 4306033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 4307033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4308bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4309bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 4310033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4311033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 43124352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 43134352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 4314bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 4315033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4316033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4317033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4318033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 4319033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 4320033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4321033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 4322033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4323033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 4324bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 4325bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 4326033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4327033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4328ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4329ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 4330ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 4331ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 4332ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4333ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 4334ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(VT); 4335ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4336ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 4337bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 4338ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 4339ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 4340ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 4341ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 4342ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 4343ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 4344ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4345841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 4346ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4347ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 4348ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 4349ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4350786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 43518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 4352ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4353ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4354ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 4355ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 4356bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 4357bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 4358ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 4359ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 4360ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4361ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 4362466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 4363ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4364ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4365ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// CreateStackTemporary - Create a stack temporary, suitable for holding the 4366ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// specified value type. 4367ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::CreateStackTemporary(MVT::ValueType VT) { 4368ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo(); 4369ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned ByteSize = MVT::getSizeInBits(VT)/8; 437058092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *Ty = MVT::getTypeForValueType(VT); 4371d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned StackAlign = (unsigned)TLI.getTargetData()->getPrefTypeAlignment(Ty); 437258092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int FrameIdx = FrameInfo->CreateStackObject(ByteSize, StackAlign); 4373ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getFrameIndex(FrameIdx, TLI.getPointerTy()); 4374ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4375ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 43765b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 43775b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 43785b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 43795b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 43805b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 43815b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 43825b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4383bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 4384f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 4385f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 43865b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 43875b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 43885b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 43895b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4390e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 4391e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 4392e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 4393e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 4394e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 4395e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 4396e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 4397e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 4398f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4399e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 4400f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 4401f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 4402f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 4403f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 4404f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4405f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Handle the case when Amt is an immediate. Other cases are currently broken 4406f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // and are disabled. 4407f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 4408f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 4409f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 4410f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 4411f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 4412f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 4413f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 4414f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4415f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4416f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4417f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4418f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4419f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 4420ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4421ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 4422ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 4423f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4424f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 4425f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 4426f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 4427f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 4428f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4429f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4430f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 4431f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4432f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4433f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4434f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4435f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 4436f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4437ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4438ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4439ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 4440f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4441f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4442f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4443f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4444f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 4445f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4446f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4447f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 4448f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4449edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 4450f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4451f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4452edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 4453f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 4454edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4455f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4456ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4457ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4458edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4459ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 4460f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4461f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4462f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4463f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4464f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 4465f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4466f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4467f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4468f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 44690ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 44700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 44710ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 44720ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner uint64_t Mask = NVTBits, KnownZero, KnownOne; 4473ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 44740ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 44750ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is one, then we can do 44760ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 44770ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownOne & Mask) { 44780ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 44790ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 44800ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 44810ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 44820ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 44830ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 44840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 44850ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 44860ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 44870ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 44880ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 44890ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 44900ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 44910ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 44920ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 44930ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 44940ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 44950ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 44960ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 44970ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 44980ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 44990ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 45000ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 45010ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 45020ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is zero, then we can do 45030ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 45040ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownZero & Mask) { 45050ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 45060ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 45070ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 45080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 45090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 45100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 45110ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 45120ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 45130ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 45140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 45150ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 45160ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 45170ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 45180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 45190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 45200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 45210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 45220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 45230ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 45240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 45250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 45260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 45270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 45280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 45290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 45300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 45310ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 45320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 45330ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 45340ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 4535f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 4536e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 453777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 45389c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 453977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 454077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 454177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 454277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 454377e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 454447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 45456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 45466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 45476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 45486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 45496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 45506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 455177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 455247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 455377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 455477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 455577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 455647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 4557d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 455847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 455977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 456077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 4561edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 45620d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 456377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 45640d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 456547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(InChain, RetTy, isSigned, false, CallingConv::C, false, 4566adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 45670d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 45686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 45696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 45706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 45716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 457299c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 45730d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 457477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 457577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 4576456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 457799c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 457877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 457999c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 458099c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 458177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 458222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 458322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 458422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 458522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 45864c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 45874c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 458822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 458922cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 459022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 459122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 459222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 459322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 459422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 459522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 459622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 459722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 459822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 459922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 460022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 460122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 460222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 460322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 460422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 460522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 460622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 460722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 460822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 460922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 461022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 461122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 461222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 461322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 461422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 461522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 461647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 461722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 461822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 461922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 462022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 462122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 4622466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 46239e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else if (DestTy == MVT::f64) 46244c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 462522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 4626466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng CPIdx, NULL, 0, MVT::f32); 46279e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else if (DestTy == MVT::f80) 46289e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, MVT::f80, DAG.getEntryNode(), 46299e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CPIdx, NULL, 0, MVT::f32); 46309e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else 46319e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Unexpected conversion"); 46329e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen 46334c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng MVT::ValueType SCVT = SignedConv.getValueType(); 46344c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 46354c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 46364c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 46374c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (MVT::getSizeInBits(SCVT) != MVT::getSizeInBits(DestTy)) { 46384c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(SCVT == MVT::i32 && DestTy == MVT::f64); 46394c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BUILD_PAIR, MVT::i64, 46404c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 46414c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 46424c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 46434c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 464422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 464522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 464622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 464722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 464822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 464922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 465022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 465122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 465222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 465322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 465422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 465522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 465622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 465722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 465822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 465922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 466022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 466122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 466222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 466322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 466422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 466522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 466622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 466722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 466856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 466922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 467056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F32; 467122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 467222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 467356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F64; 467422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 46756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 46764c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 46776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 46786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 467956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng return ExpandLibCall(TLI.getLibcallName(LC), Source.Val, isSigned, 468056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng UnusedHiPart); 468122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 468222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 468322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 468422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 468522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 468622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 468722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 468822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 468922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 469022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 469122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 469222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 469358092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner // get the stack frame index of a 8 byte buffer, pessimistically aligned 469422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 469558092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *F64Type = MVT::getTypeForValueType(MVT::f64); 469658092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner unsigned StackAlign = 4697d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner (unsigned)TLI.getTargetData()->getPrefTypeAlignment(F64Type); 469858092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, StackAlign); 469922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 470022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 470122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 470222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 470322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 4704408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 4705408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 4706408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 4707408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 4708408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 470922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 471022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 471122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 471222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 471322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 471422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 471522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 471622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 471722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 471822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 4719786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 47208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 472122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 472222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 472322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 47248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 472522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 4726466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 472722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 472822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 472922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 473022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 473122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 473222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 473322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 473422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 473522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 473622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 473722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 473822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 473922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 47409e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (DestVT == MVT::f32) { 474122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if f32 then cast to f32 474222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f32, Sub); 47439e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (DestVT == MVT::f80) { 47449e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, MVT::f80, Sub); 474522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 474622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 474722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 474822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 474922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 475022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 475122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 475222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 475322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 475422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 475522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 475622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 475722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 475822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 475922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 476022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 476122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 476222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 476322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 476422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 476522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 476622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 476722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 476822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 476922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 477047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 477122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 477222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 477322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 477422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 477522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 4776466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 477722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 477822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestVT == MVT::f64 && "Unexpected conversion"); 477922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, 478022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 4781466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng NULL, 0, MVT::f32)); 478222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 478322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 478422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 478522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 478622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 478722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 478822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 478922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 479022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 479122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 479222cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 479322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 479422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 479522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 479622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 479722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 479822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 479922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 480022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 480122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 480222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 480322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 480422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 480522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 480622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 480722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 480822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 480922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 481022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 481122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 481222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 481322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 481422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 481522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 481622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 481722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 481822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 481922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 482022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 482122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 482222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 482322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 482422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 482522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 482622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 482722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 482822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 482922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 483022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 483122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 483222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 483322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 483422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 483522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 483622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 483722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 483822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 483922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 484077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 484177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 484222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 484322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 484422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 484522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 484622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 484722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 484822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 484922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 485022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 485122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 48529c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 485322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 4854e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 485522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 485622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 485722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 485822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 485966de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 486022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 486122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 486222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 486322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 486422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 486522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 486622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 486722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 486822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 486922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 487022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 487122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 4872e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 487322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 487422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 487522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 487622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 487722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 487822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 487922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 488022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 488122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 488222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 4883e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 488422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 48850d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 488622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 4887a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 4888a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 488922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Truncate the result of the 489022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // extended FP_TO_*INT operation to the desired size. 489122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, 489222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(OpToUse, NewOutTy, LegalOp)); 489322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 489413689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 489522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 489622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 489722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 489822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 489922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 490022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 490122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 490222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 490322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 490422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 490522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 490622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 490722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 490822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 490922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 491022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 491122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 491222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 491322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 491422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 491522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 491622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 491722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 491822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 491922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 492022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 492122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 492222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 492322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 492422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 492522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 492622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 492722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 492822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 492922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 493022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 493122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 493222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 493322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 493422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 493522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 493622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 493722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 493822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 49390d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 494077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 4941edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 494222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 494322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 494422cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 494522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 494622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 494722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 494822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 494922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 495022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 495122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 495222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 495322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 495422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 4955b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 495622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 495722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 495822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 495922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 496022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 496122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 496222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 496322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 496422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 496522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 496622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 496722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 496822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 496922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 497022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 497122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 497222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 497322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 497422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 497522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 497622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 497722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 4978b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 497922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 498022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 498122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 498222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 498322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 498422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 498522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 498622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 498722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 498822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 498922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 499022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 499122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 499222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 499322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 499422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 499522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 499622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 499722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 499822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 499922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 5000b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), VT), 500122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 500222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 500322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 500422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 500522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 5006e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 50073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 50083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 50093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 50103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 50113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 50123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 50133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 501471c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 50153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 50163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 50171a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 50187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::isVector(VT)) && 50193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 50203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 50216fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 502240030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 50236fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 50246fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 50256fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 50266fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 50276fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 50283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 50293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 50303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 5031348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 5032348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 5033348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 5034e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 503539833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 5036e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 50373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 50383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 5039fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 5040aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 5041fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 5042fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 5043fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 50443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 50453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 50463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 50473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 50483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 50493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5050004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5051004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5052279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 50539f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 50549f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5055004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5056004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5057d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 50588137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 50598137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 50608137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5061d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 506258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 506358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 506458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 50654bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 50664bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 50674bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 50684bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 50694bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 507058f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 507158f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 507258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 507358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5074d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5075d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5076d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5077d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5078d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5079d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5080d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5081d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5082d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5083edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5084edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 50859b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 50869b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 50879b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5088edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5089edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5090edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 509139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 509239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 50933becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 509439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 509539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 50967cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 50977cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 509839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 509939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 510039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 510139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 510239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 510339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 510439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 510539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 510639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 510739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 51083becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 510939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 511039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 51117cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 51127cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 511339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 511439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 511539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 511639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 511739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 511839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 511939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 5120edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 5121acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 51228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 51238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5124acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 5125acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 5126acc398c195a697795bff3245943d104eb19192b9Nate Begeman 5127acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 51288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 5129acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 5130acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 5131acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 5132acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 5133acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 5134acc398c195a697795bff3245943d104eb19192b9Nate Begeman 51353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 5136466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 5137466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 5138466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 5139466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 5140d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 5141d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 5142d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 5143466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5144466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 5145d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5146d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5147004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 5148004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 5149004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 5150004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 51519f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 51529f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 51539f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5154004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5155004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5156466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5157466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 5158466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 5159466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 5160466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng getIntPtrConstant(IncrementSize)); 51617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 5162d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman if (Alignment > IncrementSize) 5163d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment = IncrementSize; 5164d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5165d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5166466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5167466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 5168466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 5169466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5170466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 5171466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5172466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5173466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5174466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (!TLI.isLittleEndian()) 5175466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 5176466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 51772e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType EVT = LD->getLoadedVT(); 5178548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 5179548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng if (VT == MVT::f64 && EVT == MVT::f32) { 5180548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 5181548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 5182d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5183548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 5184548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 5185548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 5186548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 5187548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 5188466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5189466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 5190466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 5191d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5192466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 5193466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 5194d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 5195d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 5196466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5197466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5198466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 5199466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5200466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 5201466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 5202466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 5203466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 5204466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 5205466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 5206466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 5207466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 5208466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 5209466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 5210466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 5211466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 5212466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 5213466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 52143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 52153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 52163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 52173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 52183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 52193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 52203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 52213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 52223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 52233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 52243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 52253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 52263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 5227456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 52283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 52293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 523019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 523119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 5232456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 523319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 523419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 52353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 52363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 52379373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 52389373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 52399373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 52409373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 524119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 524219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 52439373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 52449373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 524519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 524619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 524719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 52489373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 52499373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 52508137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 525113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 52528137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 525313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 525413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 525513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 52563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 52573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 52583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 52598137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 5260edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 52613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 52623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 52632dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 52648137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 52658137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 52663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 52673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 52688137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 52693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 52703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 52718137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 5272edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 52733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 52743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 52753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 527635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 52774c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 52784c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 52794c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 52804c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 52814c948eb373779718e5be36d7674382b52114bf65Chris Lattner 52824c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 52834c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 52844c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 52854c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 52864c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 52874c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 52884c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 52894c948eb373779718e5be36d7674382b52114bf65Chris Lattner 529035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 5291f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 5292f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 5293f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 5294f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5295f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 5296f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 5297f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 5298f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5299f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 5300f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5301f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 53021a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 530313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 530413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 530519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 530619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 53077b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 53087b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 53097b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 53107b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 53117b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 53127b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 53137b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 53147b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 53151a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53161a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 53171a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 5318f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 5319f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 532013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Tmp = ExpandBIT_CONVERT(VT, Node->getOperand(0)); 5321f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 532235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 532335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 532435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 5325f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 53268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::READCYCLECOUNTER: 5327308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 5328308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 5329308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 53308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = TLI.LowerOperation(Op, DAG); 53318137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner assert(Lo.Val && "Node must be custom expanded!"); 53328137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Lo.getValue(1); 5333308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 53348137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner LegalizeOp(Lo.getValue(2))); 5335f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 5336f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 53374e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 53384e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 533956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 534080a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 5341f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 5342f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5343f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 53448137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 53458137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 5346f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 5347d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5348f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 5349f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 535080a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 535180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 535207dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 535307dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 535407dffd6af673c73352150583150b242a93694f00Chris Lattner break; 535507dffd6af673c73352150583150b242a93694f00Chris Lattner } 535680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5357d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 535856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 53594e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 536056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F32_I64; 53614e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 536256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F64_I64; 536356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 536456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 53654e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 536656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 5367d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 536856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 536980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 53708137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 53718137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 53728137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 53738137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 53748137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 53758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 53768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 53778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 53788137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 53798137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 538007dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 538107dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 538207dffd6af673c73352150583150b242a93694f00Chris Lattner break; 538307dffd6af673c73352150583150b242a93694f00Chris Lattner } 538480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5385d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 538656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 53874e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 538856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F32_I64; 53894e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 539056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F64_I64; 539156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 539256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 53934e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 539456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 53954e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 539605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 539750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5398348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 539950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 54008137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 540150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 540250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 540350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 540450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 540550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 540650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 540750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 540850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 540950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 541079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 541179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 541279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 541379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 541479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 541579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 541679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 541779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 541879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 541979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 542079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 542179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 542279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 542379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 542479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 542579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 542679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 542779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 5428e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5429348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5430e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 54314759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 54324759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 543305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 543405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 543505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 543605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5437348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 54384759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 54394759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 54404759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5441e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 544256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SHL_I64), Node, 544356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*left shift=unsigned*/, Hi); 5444e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 544505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5446e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 544705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 544850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5449348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 545050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 54518137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 545250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 545350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 545450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 545550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 545650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 545750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 545850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 545950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 546050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5461e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5462348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5463e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 54644759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 54654759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 546605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 546705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 546805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 546905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5470348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 54714759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 54724759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 54734759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5474e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 547556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRA_I64), Node, 547656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng true/*ashr is signed*/, Hi); 5477e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 547805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 547905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 548005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 548150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5482348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 548350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 54848137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 548550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 548650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 548750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 548850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 548950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 549050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 549150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 549250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 549350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5494e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5495348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5496e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 54974759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 54984759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 549905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 550005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 550105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 550205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5503348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 55044759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 55054759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 55064759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5507e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 550856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRL_I64), Node, 550956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*lshr is unsigned*/, Hi); 5510e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 551105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5512e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 5513edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 55148137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 55158137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 55168137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 55178137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 55188137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 55198137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 55208137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 55218137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 55228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 55238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 55248137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 55258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 55268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 55278137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 55288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 552979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 553079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 5531bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 5532bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 5533bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 5534bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 5535551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 553679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5537bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 553879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5539551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 554079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5541bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 554279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5543551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 554484f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 55458137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 5546b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5547b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 5548b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 5549b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5550b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5551b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5552b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5553b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5554b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 5555b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5556b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5557b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 5558b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5559b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5560b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5561b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 5562b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5563b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5564b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5565b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5566b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5567b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5568b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5569b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5570b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 5571b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 5572b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5573b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5574b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5575b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5576b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5577b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 5578b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5579b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5580b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 5581b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5582b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 5583b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5584b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5585b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5586b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5587b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5588c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 55897d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 55907d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 55918829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 55928829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 55938829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 55947d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 55957d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 55967d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 55977d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 55983f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 55993f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 56003f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS || HasMULHU) { 5601c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 5602c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 5603c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 560456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman unsigned SH = MVT::getSizeInBits(RH.getValueType())-1; 56052cbba8934745fe30662f2d5a59d03545ad5212c5Nate Begeman // FIXME: Move this to the dag combiner. 560656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // MULHS implicitly sign extends its inputs. Check to see if ExpandOp 560756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // extended the sign bit of the low half through the upper half, and if so 560856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // emit a MULHS instead of the alternate sequence that is valid for any 560956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // i64 x i64 multiply. 56103f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS && 561156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is RH an extension of the sign bit of RL? 561256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOpcode() == ISD::SRA && RH.getOperand(0) == RL && 561356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOperand(1).getOpcode() == ISD::Constant && 561456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(RH.getOperand(1))->getValue() == SH && 561556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is LH an extension of the sign bit of LL? 561656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOpcode() == ISD::SRA && LH.getOperand(0) == LL && 561756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOperand(1).getOpcode() == ISD::Constant && 561856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(LH.getOperand(1))->getValue() == SH) { 5619a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5620a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5621a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 562256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 5623a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 56243f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng } else if (HasMULHU) { 5625a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5626a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5627a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner 5628a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 562956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 563056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 563156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 563256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 563356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 5634a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 563556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 5636c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 56373f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 563856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::MUL_I64), Node, 563956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 5640c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 5641c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 564256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 564356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SDIV_I64), Node, true, Hi); 564456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 564556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 564656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UDIV_I64), Node, true, Hi); 564756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 564856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 564956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SREM_I64), Node, true, Hi); 565056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 565156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 565256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UREM_I64), Node, true, Hi); 565356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 56545c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 56551a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 565656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 565756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::ADD_F32 : RTLIB::ADD_F64), 565856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 56591a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56601a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 566156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 566256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::SUB_F32 : RTLIB::SUB_F64), 566356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 56641a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56651a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 566656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 566756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::MUL_F32 : RTLIB::MUL_F64), 566856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 56691a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56701a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 567156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 567256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::DIV_F32 : RTLIB::DIV_F64), 567356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 56741a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56751a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 567656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi); 56771a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56781a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 567956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPROUND_F64_F32),Node,true,Hi); 56801a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 5681c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio case ISD::FPOWI: 5682c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 5683c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio ? RTLIB::POWI_F32 : RTLIB::POWI_F64), 5684c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Node, false, Hi); 5685c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio break; 568698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 568798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 568898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 568956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 569098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 569156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 569256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SQRT_F32 : RTLIB::SQRT_F64; 569356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 569456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 569556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 569656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 569756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 569856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::COS_F32 : RTLIB::COS_F64; 569956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 570098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 570198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 570256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, false, Hi); 570398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 570498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 5705966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 5706966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5707966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 5708966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 5709966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5710966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5711966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 5712966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5713966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5714966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5715966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5716966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 5717966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5718966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 5719966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 5720966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5721966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5722966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 5723966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5724966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5725966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5726966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5727912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 5728912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 5729912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 5730912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 5731912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 5732912095becac923ff614d7b07728eb345ada67765Evan Cheng } 57337df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 57347df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 57357df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 57367df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng MVT::ValueType SrcVT = Node->getOperand(0).getValueType(); 573756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 57387df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) { 57397df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 574056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F32 : RTLIB::UINTTOFP_I64_F32; 57417df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 574256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F64 : RTLIB::UINTTOFP_I64_F64; 57437df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } else { 57447df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 574556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 57467df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 574756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 57487df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 57497df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 57507df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng // Promote the operand if needed. 57517df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (getTypeAction(SrcVT) == Promote) { 57527df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng SDOperand Tmp = PromoteOp(Node->getOperand(0)); 57537df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Tmp = isSigned 57547df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 57557df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng DAG.getValueType(SrcVT)) 57567df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng : DAG.getZeroExtendInReg(Tmp, SrcVT); 57577df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 57587df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 57594c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng 57604c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng const char *LibCall = TLI.getLibcallName(LC); 57614c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (LibCall) 57624c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Hi); 57634c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng else { 57644c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 57654c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Node->getOperand(0)); 57664c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 57674c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng ExpandOp(Lo, Lo, Hi); 57684c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 57697df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 57707df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 577198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 57723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 577383397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 577483397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 577583397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 577683397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 577713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 577813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 577913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 578083397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 578105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 578205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 578340030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 578405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 57853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 57863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 57887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 5789c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 5790c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 57917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && "Cannot split non-vector type!"); 5792c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 57937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElements = MVT::getVectorNumElements(Node->getValueType(0)); 5794c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 5795c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NewNumElts = NumElements/2; 57967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewEltVT = MVT::getVectorElementType(Node->getValueType(0)); 57977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorType(NewEltVT, NewNumElts); 5798c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5799c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 5800c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 5801c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 5802c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 5803c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 5804c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 5805c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 5806c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5807c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5808c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 5809e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 5810e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 581139833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 5812e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 5813e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 58147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 58157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 58167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 58177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 58187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 5819bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 5820bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_begin()+NewNumElts); 58217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT, &LoOps[0], LoOps.size()); 5822c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5823bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts, 58247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 58257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT, &HiOps[0], HiOps.size()); 5826c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5827c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 58287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 58297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 58307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 58317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 58327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 58337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 58347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 58357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 58367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT, &LoOps[0], LoOps.size()); 58376595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 58387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 58397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 58407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT, &HiOps[0], HiOps.size()); 58417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 58426595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 58436595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 58447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 58457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 58467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 58477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 58487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 58497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 58507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 58517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 58527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 58537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 58547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 58557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: { 5856c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 5857c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 5858c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 5859c7029805ef35ce9805931067b841e6af11db382eChris Lattner 58607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(Node->getOpcode(), NewVT, LL, RL); 58617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(Node->getOpcode(), NewVT, LH, RH); 5862c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5863c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 58647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 58657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 58667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LD->getChain(); 58677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LD->getBasePtr(); 58687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 58697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 58707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 58717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 58727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 58737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 58747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned IncrementSize = NewNumElts * MVT::getSizeInBits(NewEltVT)/8; 5875c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 5876c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 58777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 58787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Alignment > IncrementSize) 58797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Alignment = IncrementSize; 58807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 5881c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5882c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 5883c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 5884c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5885c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 5886c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5887c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5888c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5889c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5890c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 58917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 58927692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 58937692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 589410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand InOp = Node->getOperand(0); 589510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman if (!MVT::isVector(InOp.getValueType()) || 589610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman MVT::getVectorNumElements(InOp.getValueType()) == 1) { 589710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 589810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 589910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 590010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand Ptr = CreateStackTemporary(InOp.getValueType()); 59017692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 5902786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 590310a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman InOp, Ptr, NULL, 0); 590410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, NULL, 0); 59057692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 590610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 590710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 590810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT, Lo); 590910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT, Hi); 591010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 59117692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 5912c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5913c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5914c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 591540030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 5916c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 591710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 5918c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5919c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5920c7029805ef35ce9805931067b841e6af11db382eChris Lattner 592189b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 592289b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 592389b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 59247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) { 59257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && 59267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "Bad ScalarizeVectorOp invocation!"); 5927c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 59287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorElementType(Op.getValueType()); 59297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::getVectorNumElements(Op.getValueType()) == 1); 5930c7029805ef35ce9805931067b841e6af11db382eChris Lattner 59317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 59327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand>::iterator I = ScalarizedNodes.find(Op); 59337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 5934c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5935c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 5936c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 59372332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 5938e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 593939833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 5940e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 59417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 59427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 59437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 59447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 59457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 59467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 59477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 59487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 59497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 59507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 59517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 59527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 59537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 59547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 59557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 59567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 59577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 5958c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 59597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 59607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 5961c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 59627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 59637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 59647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 59657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 59667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 59677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 59687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 59697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 59707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 59717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 59727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 59737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 59747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 5975c7029805ef35ce9805931067b841e6af11db382eChris Lattner 59767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 59777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 59787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, 59797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LD->isVolatile(), LD->getAlignment()); 59807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 5981c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5982c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 5983c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5984c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 59857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 59867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 59877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 59887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 59897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 59907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 5991c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 59927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 59936595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 59946595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 59956595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 59966595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 59977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 59987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 59997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand EltNum = Node->getOperand(2).getOperand(0); 60007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 60017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 60027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 60037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 60042332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 60057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 60067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 60077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 60086595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 60096595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 60107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: 60117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 6012db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 60137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 6014b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 60157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 60167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 6017b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 6018c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6019c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6020c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 6021c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 60227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 60237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 6024c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 6025c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 6026c7029805ef35ce9805931067b841e6af11db382eChris Lattner 60273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 60283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 60293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 60309c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 60315e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 60325e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 60333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 60343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 6035456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 60363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 60373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6038