LegalizeDAG.cpp revision 066f7b40f8c442dfd52cdbc371a5f6c623d5ba90
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; 489004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFP *LLVMC = ConstantFP::get(isDouble ? Type::DoubleTy : 490004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Type::FloatTy, CFP->getValue()); 4919f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 492279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng double Val = LLVMC->getValue(); 493279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng return isDouble 494279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng ? DAG.getConstant(DoubleToBits(Val), MVT::i64) 495279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng : DAG.getConstant(FloatToBits(Val), MVT::i32); 496279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 497279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 498004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (isDouble && CFP->isExactlyValue((float)CFP->getValue()) && 499004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Only do this if the target has a native EXTLOAD instruction from f32. 500004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, MVT::f32)) { 501004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC,Type::FloatTy)); 502004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng VT = MVT::f32; 503004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Extend = true; 504004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 505004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 506004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 507004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (Extend) { 508004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 509004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng CPIdx, NULL, 0, MVT::f32); 510004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } else { 511004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 512004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 513004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 514004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 516912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 517912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 518912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 519912095becac923ff614d7b07728eb345ada67765Evan ChengSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT::ValueType NVT, 520912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 521068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng MVT::ValueType VT = Node->getValueType(0); 522912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcVT = Node->getOperand(1).getValueType(); 5237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 5247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 525912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 526068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 527912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 528068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 529912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 530912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 531068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 532912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 533068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 534912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 535912095becac923ff614d7b07728eb345ada67765Evan Cheng int SizeDiff = MVT::getSizeInBits(SrcNVT) - MVT::getSizeInBits(NVT); 536912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 537912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 538912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 539912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 540912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 541912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 542068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 543068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 544068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 545068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 546068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 547068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 548912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 549068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 550068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 551068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 552912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 553912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 554912095becac923ff614d7b07728eb345ada67765Evan Cheng} 555912095becac923ff614d7b07728eb345ada67765Evan Cheng 556f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 557f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 558f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 559f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 560f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio assert(MVT::isInteger(ST->getStoredVT()) && 561f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio "Non integer unaligned stores not implemented."); 562f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int SVOffset = ST->getSrcValueOffset(); 563f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = ST->getChain(); 564f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = ST->getBasePtr(); 565f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Val = ST->getValue(); 566f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = Val.getValueType(); 567f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 568f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType NewStoredVT = ST->getStoredVT() - 1; 569f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewStoredVT); 570f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int Alignment = ST->getAlignment(); 571f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 572f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 573f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Divide the stored value in two parts. 574f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 575f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo = Val; 576f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Hi = DAG.getNode(ISD::SRL, VT, Val, ShiftAmount); 577f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 578f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Store the two parts 579f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Store1, Store2; 580f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store1 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Lo:Hi, Ptr, 581f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset, NewStoredVT, 582f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->isVolatile(), Alignment); 583f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 584f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 585f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store2 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Hi:Lo, Ptr, 586f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset + IncrementSize, 587f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewStoredVT, ST->isVolatile(), Alignment); 588f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 589f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::TokenFactor, MVT::Other, Store1, Store2); 590f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 591f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 592f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedLoad - Expands an unaligned load to 2 half-size loads. 593f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 594f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedLoad(LoadSDNode *LD, SelectionDAG &DAG, 595f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 596f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio assert(MVT::isInteger(LD->getLoadedVT()) && 597f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio "Non integer unaligned loads not implemented."); 598f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int SVOffset = LD->getSrcValueOffset(); 599f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = LD->getChain(); 600f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = LD->getBasePtr(); 601f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = LD->getValueType(0); 602f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType NewLoadedVT = LD->getLoadedVT() - 1; 603f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewLoadedVT); 604f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int Alignment = LD->getAlignment(); 605f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 606f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ISD::LoadExtType HiExtType = LD->getExtensionType(); 607f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 608f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. 609f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (HiExtType == ISD::NON_EXTLOAD) 610f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio HiExtType = ISD::ZEXTLOAD; 611f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 612f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Load the value in two parts 613f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo, Hi; 614f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (TLI.isLittleEndian()) { 615f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 616f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset, NewLoadedVT, LD->isVolatile(), Alignment); 617f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 618f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 619f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), 620f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 621f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Alignment); 622f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 623f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), SVOffset, 624f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewLoadedVT,LD->isVolatile(), Alignment); 625f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 626f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 627f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 628f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 629f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Alignment); 630f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 631f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 632f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // aggregate the two parts 633f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 634f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Result = DAG.getNode(ISD::SHL, VT, Hi, ShiftAmount); 635f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = DAG.getNode(ISD::OR, VT, Result, Lo); 636f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 637f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 638f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi.getValue(1)); 639f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 640f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ops[] = { Result, TF }; 641f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), Ops, 2); 642f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 643912095becac923ff614d7b07728eb345ada67765Evan Cheng 644a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 645a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 646a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 647a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 6483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 64909ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 65009ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 65109ec1b058331aadb29a348091611d23892b5c492Chris Lattner 652c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 653e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 65445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 655e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 6563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 657e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 65845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 65945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 660c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 661c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 6623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 663c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 66403c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 6653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 6663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 6673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 66845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 66945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 670718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 671e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 6723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6739373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 6743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 675456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 676456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 6773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 678948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 679948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 680948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 681948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 682948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 68337efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 684948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 6853181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 686948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 687948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 688b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 689948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 690948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 691948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 692948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 693948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 694948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 695948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner assert(TLI.isOperationLegal(Node->getValueType(0), Node->getValueType(0)) && 696948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 697948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 6983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 699d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 700d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 701d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 702f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 703c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 704d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 705c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 706f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 707d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 708d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 709d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 710d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 711d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 712d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 713e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 71439833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 715e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 7163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 7173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 7180d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 7193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 720b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 72103c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 72237efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 72337efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 7240c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 7250c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 726948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 727948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 728948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 729948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 7300c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 7310c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 7320c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 7333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 734bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 735bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 736bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 737bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 738bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 739bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 740bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 741bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 742bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 743bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 744066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case ISD::FRAME_TO_ARGS_OFFSET: 745066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 746066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 747066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov default: assert(0 && "This action is not supported yet!"); 748066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Custom: 749066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 750066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov if (Result.Val) break; 751066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov // Fall Thru 752066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Legal: 753066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = DAG.getConstant(0, VT); 754066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 755066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov } 756066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 7572bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 7582bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 7592bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey MVT::ValueType VT = Node->getValueType(0); 7602bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 7612bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 7622bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 7638782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 7642bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = DAG.getCopyFromReg(Tmp1, Reg, VT).getValue(Op.ResNo); 7652bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 7662bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 7672bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 7682bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 7692bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 7702bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 771eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 772eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 773eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 774eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 7758782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 7768782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 7778782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 778eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 7798782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 7808782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 7818782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 7828782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 7838782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey MVT::ValueType VT = Node->getValueType(0); 7848782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 7858782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 7868782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 7878782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 7888782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = DAG.getCopyFromReg(Tmp2, Reg, VT).getValue(Op.ResNo); 7898782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 7908782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 7918782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 7928782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 7938782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 7948782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 795eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 796eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 797eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 798eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 7992bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8002bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8012bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 802eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 8032bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8046d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky case ISD::EH_RETURN: { 8052365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 8062365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // The only "good" option for this node is to custom lower it. 8072365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8082365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov default: assert(0 && "This action is not supported at all!"); 8092365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Custom: 8102365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 8112365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov if (Result.Val) break; 8122365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Fall Thru 8132365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Legal: 8142365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Target does not know, how to lower this, lower to noop 8152365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = LegalizeOp(Node->getOperand(0)); 8162365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 8172365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov } 8186d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky } 8192365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 82008951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 82108951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 82208951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 823c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 82408951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 825308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 826c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 827456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 828456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 82969a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 83069a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 8317310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 832f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 833c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 8347310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 835f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 836c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 837f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 838c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 839c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 840c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 841c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 8427310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 8437310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 84413c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 84513c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 84613c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 84713c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 84813c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 849fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 850fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 851fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 852ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 853ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 854fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 855fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 856fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 857fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstantFP(0, VT); 858fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 859fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 860fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 861ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 862fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 863fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 864fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 865fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 866d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 86748b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 86848b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 86948b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 870f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 871d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 872d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 873f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 87410d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 87510d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 87648b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 87710d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 87810d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 87910d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 88013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 88113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 88213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 88313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 88413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 88513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 88613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 88713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 88813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 88913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 89013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 89113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 89213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 893d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 89436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 89536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 89636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 89736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 89836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 89936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 90036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 90136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 902f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 90344c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 904abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 9051ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 906abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 90744c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 908abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 909e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 910abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 911e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 91244c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 913abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 914bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 915abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 916abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 917abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 918abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 919abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 920abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 921abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 922abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 923bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 924abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 925d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 926d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 92744c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned ID = MMI->RecordLabel(Line, Col, SrcFile); 928abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 9291ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey Result = DAG.getNode(ISD::LABEL, MVT::Other,&Ops[0],Ops.size()); 930abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 931e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 932e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 933e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 93436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 935e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 93636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 9379ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 9389ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 939f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 94036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 9419ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 9429ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 9439ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 9449ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 9459ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 9469ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 9479ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 9489ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 94936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 95036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 951f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 95236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 95336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 95436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 95536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 956f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 957f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 958abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 959f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 960f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 961abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 962abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 963abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 964abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 965abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 966c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 967abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 968abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 969abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 970abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 9711ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 9721ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid LABEL node!"); 9731ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 974abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 975abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 976abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 977abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 978c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 979f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 980a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 981a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 982a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 983f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 984551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 98536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 986c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 987c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 988c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 989c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 990c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 9913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 9923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 9933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 994c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 995c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 996c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (Tmp1.Val) 997c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 998c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 9993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1000c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 10013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 10023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 10033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 10043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 10053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 10063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 10073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 10083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 10093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 10103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 10113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 10123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 10133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 10143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 10153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 10163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 10173181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 10183181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 10193181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = DAG.getTargetConstantFP(CFP->getValue(), CFP->getValueType(0)); 10203181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 10213181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 10223181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 10233181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 10243181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 10253181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 10263181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 10273181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 10283181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 10293181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 10303181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 10313181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 10323181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 1033279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 10343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 10353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 10363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1037040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1038040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1039c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1040c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1041c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1042c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1043c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1044c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1045c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1046c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1047040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1048f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1049040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1050c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1051c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1052f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1053a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1054a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1055fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1056fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1057f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1058fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1059b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1060b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 1061b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val->getNumValues() == Result.Val->getNumValues() && 1062b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1063e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1064f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1065e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1066b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 1067b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 1068e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 1069e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1070e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 1071e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1072e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1073557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1074557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1075557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1076557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1077557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1078557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1079557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1080557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1081557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1082557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1083557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1084557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1085557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1086557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp3 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1087557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1088557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1089557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1090b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1091b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 10922332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 10932332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 10942332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 10952332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 10962332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 10972332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 10982332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 10992332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1100ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1101ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 1102b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 11032332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 11042332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11052332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 11062332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 11072332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 11082332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 11092332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 11102332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 11112332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 11122332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 11132332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 11142332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 11152332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11162332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 11172332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 11182332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 11192332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 11202332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11212332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 11222332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 11232332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 11248d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 11258d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 11268d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 11278d5a894501b7546dee94df03118b90126c420820Chris Lattner SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 11288d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1.getValueType(), Tmp2); 11298d5a894501b7546dee94df03118b90126c420820Chris Lattner 11308d5a894501b7546dee94df03118b90126c420820Chris Lattner unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 11318d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 113251eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType ShufMaskEltVT = MVT::getVectorElementType(ShufMaskVT); 11338d5a894501b7546dee94df03118b90126c420820Chris Lattner 11348d5a894501b7546dee94df03118b90126c420820Chris Lattner // We generate a shuffle of InVec and ScVec, so the shuffle mask should 11358d5a894501b7546dee94df03118b90126c420820Chris Lattner // be 0,1,2,3,4,5... with the appropriate element replaced with elt 0 of 11368d5a894501b7546dee94df03118b90126c420820Chris Lattner // the RHS. 1137bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> ShufOps; 11388d5a894501b7546dee94df03118b90126c420820Chris Lattner for (unsigned i = 0; i != NumElts; ++i) { 11398d5a894501b7546dee94df03118b90126c420820Chris Lattner if (i != InsertPos->getValue()) 11408d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 11418d5a894501b7546dee94df03118b90126c420820Chris Lattner else 11428d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 11438d5a894501b7546dee94df03118b90126c420820Chris Lattner } 1144bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 1145bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ShufOps[0], ShufOps.size()); 11468d5a894501b7546dee94df03118b90126c420820Chris Lattner 11478d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 11488d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1, ScVec, ShufMask); 11498d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = LegalizeOp(Result); 11508d5a894501b7546dee94df03118b90126c420820Chris Lattner break; 11518d5a894501b7546dee94df03118b90126c420820Chris Lattner } 11528d5a894501b7546dee94df03118b90126c420820Chris Lattner 11532332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 11542332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 11552332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 11562332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 11572332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 11582332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 1159f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 1160f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType EltVT = Tmp2.getValueType(); 1161f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 1162f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 1163f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr = CreateStackTemporary(VT); 1164eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 11658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, NULL, 0); 1166eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 1167eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 1168f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 1169f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 1170eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 1171f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 1172f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 1173f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 1174eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 11758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Ch = DAG.getStore(Ch, Tmp2, StackPtr2, NULL, 0); 1176eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 1177466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Ch, StackPtr, NULL, 0); 11782332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11792332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 11802332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 11812332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1182ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 11834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 11844352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 11854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 11864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 11874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1188ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1189ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1190ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1191ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1192ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1193ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1194ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 11954d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 11964d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 11974d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 11984d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 11994d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 12004d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 12014d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 12024352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 12034352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1204ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1205ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1206ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 120787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 120887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 120987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 121087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 121187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 121287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 12134352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 12144352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 12154352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 12164352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 12174352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 12184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 12194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 122018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 122118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 122218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 122318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 122418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 122518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 122618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 122718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 122851eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 122918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 123018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 123118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1232bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 123318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 123418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 123518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 123618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 123718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 123818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 123918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 124018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 124118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 124218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 124318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 124418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 124518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 124618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 124718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1248bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 12494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 125018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 12514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 12524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 12534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 12544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 12554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 12564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 12574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 12584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 12594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 12604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 12614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 12624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 12634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 12644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 12654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 12664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 126787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 126887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1269384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1270384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 12717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1272384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1273384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 12747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1275384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1276384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 12777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 12787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 12797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 12807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 12817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 12826595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 12836595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 12846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 12856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 12866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 12886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 12896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 129000755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 12916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1292c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1293c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1294c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 12956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 12976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 12986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 12996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 13016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1302c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1303b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1304b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1305b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 13066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 13086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1309f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 13106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1311f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 13126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 13136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 13154b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 13164b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 13174b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 13184b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 13196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 13206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 13216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 13226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 13236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 13246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 13256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 13266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 13276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 13286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 13306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 13316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 13326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 13336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 133416cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 13356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 13366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 13376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 13386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 1339718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 13406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 13416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 13426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 13436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 13446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 13466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 13473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 134870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 134970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 135070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 135170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1352f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 135370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1354f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 135570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 135670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 135770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 135870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 135970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1360f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 136170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 136270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1363f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 136470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 13656a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 13664b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 13676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 13686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 13694b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 13704b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 13714b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 13724b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 13734b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 13744b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1375a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 137661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1377fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1378fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1379fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1380c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1381fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1382c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 13835f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 138461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1385a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1386903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1387903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1388903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1389903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1390903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 1391903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 139261bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, VT); 139361bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 139461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned Align = cast<ConstantSDNode>(Tmp3)->getValue(); 139561bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 139661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 139761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 13983e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 13993e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 140061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 140161bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp2 = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 1402c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1403c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1404903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1405903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1406903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 14075f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 14085f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1409c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1410c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1411a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1412903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1413a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1414903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1415a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1416903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1417903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1418c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1419c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1420903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1421a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 142225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1423f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 142425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 142525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 142625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 142725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 142825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 142925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 143025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 143125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 143225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 143325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 143425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 143525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 143625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 143725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 143825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 143925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 144025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 144125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 144225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 144325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 144425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 144525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 144625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 144725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 144825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1449ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 145025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1451f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1452ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1453ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1454c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1455ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1456ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 145725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1458c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1459c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 14606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 14616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 14626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 14636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 14646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1465c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1466c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 146737efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 146837efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 146937efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 147037efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 147137efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 147237efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 147337efe6764568a3829fee26aba532283131d1a104Nate Begeman 147437efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 147537efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 147637efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 147737efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 147837efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 147937efe6764568a3829fee26aba532283131d1a104Nate Begeman } 148037efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 148137efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 14823d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 14833d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 14843d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 14853d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 14863d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 14873d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 14883d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 14893d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 14903d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 14913d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 14923d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 14933d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 14943d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 14953d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 14963d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 14973d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 14983d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 14993d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 15003d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 15013d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 15023d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 15033d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 15043d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1505acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1506acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 15073d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 15083d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1509acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1510acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1511acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1512acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 1513acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, NULL, 0); break; 1514acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, NULL, 0); break; 1515acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1516acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1517acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 15183d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 15193d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 15203d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // RelocBase is the JumpTable on PPC and X86, GOT on Alpha 15213d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Reloc; 15223d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (TLI.usesGlobalOffsetTable()) 15233d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, PTy); 15243d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng else 15253d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = Table; 1526d063189c0958536aae7ecebec5676541b2cdef9bEvan Cheng Addr = (PTy != MVT::i32) ? DAG.getNode(ISD::SIGN_EXTEND, PTy, LD) : LD; 15273d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, Reloc); 15283d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 15293d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } else { 15303d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), LD); 15313d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 15323d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 15333d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 15343d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1535c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1536c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 15386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 15396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 15406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 15416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 154247e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 154347e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 154447e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 154547e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 154647e9223e06390897c3834f8c527001df392570ffChris Lattner break; 154747e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 154847e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1549f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1550f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1551f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 1552ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 1553f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner MVT::getIntVTBitMask(Tmp2.getValueType())^1)) 1554f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 155547e9223e06390897c3834f8c527001df392570ffChris Lattner break; 155647e9223e06390897c3834f8c527001df392570ffChris Lattner } 1557456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1558456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1559c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 15607cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 15617cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 15627cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1563456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1564456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1565456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1566456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1567456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 15687cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 15697cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 15707cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 15717cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 15727cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 15737cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 15747cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 15757cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 15767cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 15777cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 15787cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 15797cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 15807cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 15817cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 15827cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 15837cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 15847cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 15857cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 15876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 15886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1589750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1590750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1591750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1592181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1593750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1594722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1595722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1596750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1597750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1598750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1599750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1600750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1601750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1602750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1603750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1604750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1605750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1606456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1607181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1608181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1609456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1610456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1611456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1612456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1613181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 16147cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1615c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1616f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1617466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1618466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1619466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 16202d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1621466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1622466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1623466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1624466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1625466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1626466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1627456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1628466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1629466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1630f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1631f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1632f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1633f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1634f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1635f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(LD->getLoadedVT())); 1636f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1637f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1638f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1639f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1640f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1641f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio LegalizeOp(Tmp3); 1642f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio LegalizeOp(Tmp4); 1643f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1644f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1645f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1646466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1647466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1648466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1649466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1650466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1651466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1652466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1653466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1654466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1655466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1656466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1657466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1658466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1659466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1660d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1661d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1662466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 166341f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1664466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1665f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1666466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1667466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1668466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1669466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1670466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1671466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1672466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 16732e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType SrcVT = LD->getLoadedVT(); 1674466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getLoadXAction(ExtType, SrcVT)) { 1675466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1676466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: 1677466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(SrcVT == MVT::i1 && 1678466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng "Can only promote extending LOAD from i1 -> i8!"); 1679466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1680466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValue(), LD->getSrcValueOffset(), 1681d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman MVT::i8, LD->isVolatile(), LD->getAlignment()); 1682c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1683c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1684c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1685466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1686466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng isCustom = true; 1687466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FALLTHROUGH 1688466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: 1689466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1690466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = Result.getValue(0); 1691466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = Result.getValue(1); 1692456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1693466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (isCustom) { 1694466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 1695466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp3.Val) { 1696466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Tmp3); 1697466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1698466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1699f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 1700f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1701f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1702f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1703f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1704f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(LD->getLoadedVT())); 1705f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1706f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1707f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1708f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp1 = Result.getOperand(0); 1709f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp2 = Result.getOperand(1); 1710f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio LegalizeOp(Tmp1); 1711f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio LegalizeOp(Tmp2); 1712f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1713f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1714456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1715466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1716466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Expand: 1717466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 1718466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 1719466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 1720d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1721d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1722466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1723466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1724466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Load.getValue(1)); 1725466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1726466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1727fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 1728466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Turn the unsupported load into an EXTLOAD followed by an explicit 1729466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // zero/sign extend inreg. 1730466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 1731466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1, Tmp2, LD->getSrcValue(), 1732d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), SrcVT, 1733d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1734466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand ValRes; 1735466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) 1736466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1737466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, DAG.getValueType(SrcVT)); 1738466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 1739466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1740466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1741466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1742c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 17439d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 1744466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 1745466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 1746466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1747466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1748466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 174901ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 175001ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 17515dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 17525dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 17535dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1754c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 17555dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 17565dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 17575dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 17585dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 17595dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 17605dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 17615dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 17625dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 17635dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 17645dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 17655dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 17665dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 17675dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 17685dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 17695dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 17705dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 17715dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 17725dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 17735dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 17745dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 17755dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 17765dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 17773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17785dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 17793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 17803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 17813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1782edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1783c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1784d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 17857310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1786d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1787f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1788c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 17897310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1790f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1791c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1792f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1793c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1794c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1795c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1796c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 17977310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 17987310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 17997310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 18007310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1801c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 18027310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1803c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 18047310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 18053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 18063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 18073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 18083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 18106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 18116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 18136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 1814f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 18153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 18168e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 181798f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 18188e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 1819f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 18203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 18218e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 18223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1823f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 18247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(Tmp2.getValueType())) { 1825f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1826f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 1827edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 1828edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 1829edf2e8da256496c19390cfd46da80746373e9989Chris Lattner if (!TLI.isLittleEndian()) 1830edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 1831edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 183213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 183313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 183413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 183513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 1836f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 1837f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1838f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 18397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 18407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(0)); 1841f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 18427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 1843ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 1844f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 18457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 1846ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 18477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 18488e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1849f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 1850f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 18517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 18527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 18538e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1854b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1855b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 1856b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 1857b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1858f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 1859f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 1860f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1861f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1862b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 1863b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 1864f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1865f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 1866fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 1867f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1868f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1869f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1870edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 18713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 18728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 18738e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1874c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 18758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 18763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 18773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 18783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1879c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 18803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 18813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 1882f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 18833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 18848e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 18853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 18863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 18874e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 18888e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 18893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 18903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 18913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 18926595cb3000d7f5f8e9a76d556aa8609db91b7887Dan Gohman assert(!MVT::isExtendedVT(Node->getOperand(i).getValueType()) && 1893b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 18943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 18953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 18968e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 189713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 189813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 189913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 190013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 1901edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 19023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 19048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 19053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1906c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1907c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 1908f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 1909c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 1910f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 1911f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 19123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 191517c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 19166862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 19176862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 19186862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 19196862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 19206862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 19216862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 19226862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 19236862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 19246862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 192517c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 19263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1927f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 19288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 19298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 19308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 1931d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 1932d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 1933d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 19348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 19358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 1936d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 1937d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 1938d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 1939d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 1940d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 1941d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 1942d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 1943d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner if (CFP->getValueType(0) == MVT::f32) { 1944d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Tmp3 = DAG.getConstant(FloatToBits(CFP->getValue()), MVT::i32); 1945d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } else { 1946d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner assert(CFP->getValueType(0) == MVT::f64 && "Unknown FP type!"); 1947d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Tmp3 = DAG.getConstant(DoubleToBits(CFP->getValue()), MVT::i64); 1948d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1949d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 1950d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 1951d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner break; 1952d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1953d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 19548b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (getTypeAction(ST->getStoredVT())) { 19558b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 19568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 19572efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 19588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 19598b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 19608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 19618b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 19628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 1963f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1964f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 1965f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1966f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1967f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1968f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(ST->getStoredVT())); 1969f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 1970f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 1971f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1972f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1973f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 19748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 19758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 19768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 19778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 19788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 19798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 19808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 19818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 19828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 1983d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 1984d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 19858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 19868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 19872efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 1988f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 19898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 19908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 19918b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 19928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 1993d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, ST->getStoredVT(), 1994d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 19958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 199603c8546ec57523970874917854a2fb77b1ff598eChris Lattner 19978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 19988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 19998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 2000c7029805ef35ce9805931067b841e6af11db382eChris Lattner 20018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 20028b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 20038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 20047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (MVT::isVector(ST->getValue().getValueType())) { 20058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 20067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 20077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(0)); 20088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 20097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2010ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 20118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 20127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2013ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 20147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = LegalizeOp(Node->getOperand(1)); 20158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2016d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 20178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 20188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 20208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 20217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = ScalarizeVectorOp(Node->getOperand(1)); 20228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2023d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 20248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 20258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 20268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 20278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 20298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SplitVectorOp(Node->getOperand(1), Lo, Hi); 20308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng IncrementSize = NumElems/2 * MVT::getSizeInBits(EVT)/8; 20318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2032c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 20338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ExpandOp(Node->getOperand(1), Lo, Hi); 20347b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 20358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 20368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!TLI.isLittleEndian()) 20378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2038c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2039c7029805ef35ce9805931067b841e6af11db382eChris Lattner 20408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2041d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 20427b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 20437b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 20447b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 20457b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 20467b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 20477b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 20487b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 20498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 20508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng getIntPtrConstant(IncrementSize)); 20518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 20528b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2053d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2054d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman if (Alignment > IncrementSize) 2055d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment = IncrementSize; 20568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2057d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 20588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 20598b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 20618b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 20628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncating store 20638b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(ST->getValue().getValueType()) && 20648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Cannot handle illegal TRUNCSTORE yet!"); 20658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 20668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 20678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The only promote case we handle is TRUNCSTORE:i1 X into 20688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // -> TRUNCSTORE:i8 (and X, 1) 20698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (ST->getStoredVT() == MVT::i1 && 20708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getStoreXAction(MVT::i1) == TargetLowering::Promote) { 20718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Promote the bool to a mask then store. 20728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::AND, Tmp3.getValueType(), Tmp3, 20738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng DAG.getConstant(1, Tmp3.getValueType())); 20748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2075d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, MVT::i8, 2076d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 20778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 20788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 != ST->getBasePtr()) { 20798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 20808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 2081d9731af75b38f30c02f19d6e81333b9c2599ad5fChris Lattner } 2082c7029805ef35ce9805931067b841e6af11db382eChris Lattner 20838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType StVT = cast<StoreSDNode>(Result.Val)->getStoredVT(); 20848b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getStoreXAction(StVT)) { 20858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2086f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2087f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2088f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2089f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2090f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2091f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(ST->getStoredVT())); 2092f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2093f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2094f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2095f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2096f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 20978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 20988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 20998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 21008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 21018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 21023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 21033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2104f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 210595762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 210695762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2107c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 210895762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2109140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2110140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2111c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2112c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2113c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2114456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2115140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2116140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2117456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2118456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2119c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2120c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 2121c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2122c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2123140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2124456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2125140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 21264f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 21274f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 21284f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2129c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 21304f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2131c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 21324f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2133c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2134c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 21354f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2136456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2137140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2138456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2139456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2140456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2141c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2142c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2143c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 2144456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2145140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2146140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2147140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2148c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2149140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2150140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2151140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2152456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2153456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2154456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2155456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2156140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2157140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 21584f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 21594f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 21604f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 21614f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 21624f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 21634f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 21644f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2165140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2166140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2167140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2168140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 216951b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 217051b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2171c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2172f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2173f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2174f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 21756a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 21766a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 21776a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 21786a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2179f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2180f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 21816a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 21826a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2183f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2184f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 218549c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 218649c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 218749c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 21886a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 21896a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2190c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2191f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 21922ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 219347e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 219447e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 219547e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 219647e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 219747e9223e06390897c3834f8c527001df392570ffChris Lattner break; 219847e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 219947e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2200b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 2201ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 2202b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner MVT::getIntVTBitMask(Tmp1.getValueType())^1)) 2203b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 220447e9223e06390897c3834f8c527001df392570ffChris Lattner break; 220547e9223e06390897c3834f8c527001df392570ffChris Lattner } 22063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 22072ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 220855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2209c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2210456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2211b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 221255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2213456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2214456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2215456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2216456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2217456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2218456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 22199373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 22209373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 22219373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 22229373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 22239373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 22249373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 22259373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 22269373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 22279373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 22289373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 222955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 223055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 223155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 223255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 223355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 223441f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 223541f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 223641f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 223741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 2238456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2239456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 224055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2241456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2242456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 224355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 224455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 224555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 224655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 224755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 224855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 224955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 225055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 225155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 225255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 22533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2254750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2255750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2256750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 22579373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 22589373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2259750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 22609373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2261750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2262750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2263750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2264750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2265750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2266750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2267750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2268750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2269750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2270750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2271750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2272750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2273750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2274750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2275750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2276750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2277750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2278750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 22799373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 22809373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 22819373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2282750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 22833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2284750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2285750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2286750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2287750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2288750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2289750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2290750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2291750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2292750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2293750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 22943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2296b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 229773e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2298456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2299456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2300456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2301456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2302456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 23032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2304456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 23052b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 23062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2307456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2308b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2309ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2310ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2311ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2312ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2313ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 231400755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner MVT::ValueType OldVT = NewInTy; OldVT = OldVT; 2315ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2316ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2317ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2318ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2319ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2320ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2321ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2322ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2323ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2324ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2325ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 23261ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2327ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2328ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2329ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2330ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2331ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2332ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2333ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2334ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2335c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2336c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 23372b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2338433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 23395e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2340ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2341b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2342b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2343b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2344b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2345b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2346b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 23472b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2348b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2349b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 23503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2351e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 2352e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 2353e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 2354deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 2355e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 2356e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 2357e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 2358e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 2359e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 2360e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2361deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 2362e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2363e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2364deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 2365e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2366e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2367e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 2368edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 2369e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2370272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2371272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2372272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 23736814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 23746814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 23756814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 2376fa9aa2b424d0a7d9f7201f8fdcf5ccfa05db3a80Chris Lattner ExpandOp(Node->getOperand(3), Tmp4, HiPart); 23776814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 23786814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2379e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2380e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2381e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2382e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2383e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2384272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2385272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2386272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2387272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2388272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2389272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2390272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2391272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2392272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2393272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2394e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2395e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2396e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 239755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 239855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 239955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2400456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2401456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2402456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 240355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2404c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, Tmp5); 2405456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2406456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2407456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2408456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 240955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 241055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2411e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2412e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2413e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2414a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 241547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListTy Args; 241647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 2417e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 24183bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2419e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2420d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp2; Entry.Ty = IntPtrTy; 242147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2422dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2423dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2424dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2425dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2426dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2427dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2428d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp3; Entry.Ty = Type::Int32Ty; Entry.isSExt = true; 242947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2430d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp4; Entry.Ty = IntPtrTy; Entry.isSExt = false; 243147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2432e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2433e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2434e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2435e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2436b25fe8267182662750dcb76a70a20f4b14a5568dAnton Korobeynikov Entry.Ty = IntPtrTy; 2437b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp2; Args.push_back(Entry); 2438b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp3; Args.push_back(Entry); 2439b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp4; Args.push_back(Entry); 2440e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2441e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2442e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2443e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 244445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2445e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 244647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(Tmp1, Type::VoidTy, false, false, CallingConv::C, false, 2447e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2448456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 244955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 245055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2451e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2452e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2453e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 245452d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 24555b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 24565b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 24575b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2458f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 245984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 246084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 246184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 246284f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 246384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2464c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2465f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 24662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 246705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 246805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 246905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2470456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2471456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2472456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2473456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2474456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 247505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2476456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 247705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 247805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 247912f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 248005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2481269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 248205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 248305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 248405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 248505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 248605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 24872c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 24882c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 24892c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 24902c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 24912c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 249284f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 24932c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 24942c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 24953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 24963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 24973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2498c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2499c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 25003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 25013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 25023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 25033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 25043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 250503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 250603c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 250703c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 250801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 250901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 251001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 251101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 25123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2513f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2514f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2515f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2516f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2517f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2518f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2519f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2520f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2521f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2522c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2523c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2524456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2525e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2526bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2527456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2528456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2529456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2530456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 253157030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2532bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 253352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (Node->getValueType(0) == MVT::i32) { 253452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng switch (Node->getOpcode()) { 253552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng default: assert(0 && "Do not know how to expand this integer BinOp!"); 253652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::UDIV: 253752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::SDIV: 253856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UDIV 253956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 254052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 254147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = Node->getOpcode() == ISD::SDIV; 254256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 254352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng }; 254452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 254552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 254652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 2547bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 2548bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 2549bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 2550bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 255151eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(Node->getValueType(0)); 2552bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 2553bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner for (unsigned i = 0, e = MVT::getVectorNumElements(Node->getValueType(0)); 2554bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner i != e; ++i) { 2555bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand Idx = DAG.getConstant(i, PtrVT); 2556bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand LHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, Idx); 2557bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand RHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, Idx); 2558bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner Ops.push_back(DAG.getNode(Node->getOpcode(), EltVT, LHS, RHS)); 2559bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2560bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, Node->getValueType(0), 2561bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 2562bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 2563bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2564cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 2565cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 2566cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 2567cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 2568cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 2569cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 2570cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 2571cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2572cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 2573cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 2574cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 2575cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 2576cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 2577cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 2578cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 2579cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 2580cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2581cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2582cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2583e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 25843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2585a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2586a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 2587a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2588a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 2589a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 2590a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 2591a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2592a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2593a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 2594a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2595a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2596a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2597a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2598a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2599a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2600a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2601a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 2602a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 2603a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2604a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 26058f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 2606a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 2607912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 2608636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 2609636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 2610636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 2611636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 2612636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 2613912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 2614636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 26158f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 26168f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 26178f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 26188f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 26198f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 26208f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 26218f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 26228f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 26238f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 26248f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 26258f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 26268f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 26278f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 26288f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 26298f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 26308f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 26318f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 26328f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 26338f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 2634912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType NVT = 2635912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 2636912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 2637912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 2638912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 2639a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2640a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2641912095becac923ff614d7b07728eb345ada67765Evan Cheng } 2642a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2643a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2644551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 2645551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 2646551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2647551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2648551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2649551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2650551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2651551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2652551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2653551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2654edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2655551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 2656551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 2657551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2658551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2659551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 2660551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2661551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2662551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2663551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2664551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2665551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2666551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 2667419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 2668419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 2669419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 2670419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 2671419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 2672419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 2673456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2674456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2675456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 2676419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 2677419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 2678419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 2679419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2680419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 2681419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 2682419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 2683419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 2684419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 2685419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 2686456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 2687419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2688419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2689419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2690419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2691419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 2692c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 2693c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 269401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2695c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2696c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2697456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2698c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2699456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 2700456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2701456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2702456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 270357030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 2704c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2705456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2706456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2707456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2708456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 270957030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 27104c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner case TargetLowering::Expand: 27116b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 271247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 27134c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner if (MVT::isInteger(Node->getValueType(0))) { 271452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (TLI.getOperationAction(DivOpc, Node->getValueType(0)) == 271552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 271652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 271752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng MVT::ValueType VT = Node->getValueType(0); 27186b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 271952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 272052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 272152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 272252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng assert(Node->getValueType(0) == MVT::i32 && 272352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 272456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 272556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 272652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 272756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 272852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 27294c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner } else { 27304c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner // Floating point mod -> fmod libcall. 273156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getValueType(0) == MVT::f32 273256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::REM_F32 : RTLIB::REM_F64; 27334c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner SDOperand Dummy; 273456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 273556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 2736c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2737c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2738c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2739c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2740acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 2741acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2742acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2743acc398c195a697795bff3245943d104eb19192b9Nate Begeman 27445c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2745acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 2746acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2747456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2748456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2749456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2750acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2751c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2752c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 2753456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 2754456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2755456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2756456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 2757456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 2758456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 2759456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 2760456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2761456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2762acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2763acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 2764466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 2765acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 2766466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 2767acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 2768acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 2769acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 2770acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 2771acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 27728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 27738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 2774acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 2775466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 2776456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 2777acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 2778acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2779acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2780acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2781acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 2782acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 2783acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 2784456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 2785456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 2786acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2787acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2788acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 2789acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2790acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 2791acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 2792acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2793acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 2794acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2795456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2796456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2797456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2798acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2799c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 2800c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 2801456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2802456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2803456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2804456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2805acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2806acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2807acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 2808acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 2809466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SVD = cast<SrcValueSDNode>(Node->getOperand(3)); 28108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SrcValueSDNode *SVS = cast<SrcValueSDNode>(Node->getOperand(4)); 2811466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, SVD->getValue(), 2812466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SVD->getOffset()); 28138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, SVS->getValue(), 28148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SVS->getOffset()); 2815acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2816acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2817acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2818acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2819acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 2820acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2821acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2822acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2823acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 2824acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2825456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2826456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2827456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2828acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2829c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2830456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2831456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 2832456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2833456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2834acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2835acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2836acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 2837acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2838acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2839acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2840acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2841acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 2842acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2843acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2844acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2845c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2846c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2847acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 2848acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2849456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2850456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2851456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2852456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2853acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2854acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2855acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2856acc398c195a697795bff3245943d104eb19192b9Nate Begeman 285735ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 285835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 285935ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 286035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2861c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2862c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2863c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 2864c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 2865c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2866c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 2867c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2868c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 2869c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 2870c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 2871c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2872c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 2873c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 2874c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2875c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 2876c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 2877c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2878c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 287935ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 288035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 2881d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2882d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2883d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2884456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2885456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 2886456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2887c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2888456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2889456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 2890456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 2891456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2892b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned DiffBits = MVT::getSizeInBits(NVT) - MVT::getSizeInBits(OVT); 2893456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2894456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2895456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2896456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2897456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 2898456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2899456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2900456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 2901456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 2902456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2903d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 2904d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2905d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 2906691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2907691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2908691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2909691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2910691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2911910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 2912691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 2913c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2914910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 2915335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 2916335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 2917335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel if (Tmp1.Val) { 2918335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 2919335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 2920910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 2921691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2922691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 2923691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 2924691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2925edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 2926edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 2927691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2928691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 2929691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 2930456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2931691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2932691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 2933691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2934691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2935691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 29367cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 2937b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 29387cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 293900b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2940910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1); 2941691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2942691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2943456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 294400b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 2945b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 2946b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(OVT), NVT)); 2947691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2948691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2949691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2950691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2951691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 2952456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 2953691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2954691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2955691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 295600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 29572c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 29582c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 29592c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 2960da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 2961da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 2962da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 29632c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 29642c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2965456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2966456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 296759ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 296859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 29692c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 2970c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 297159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 297259ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 297359ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 297459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 29752c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 29762c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 2977456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2978456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 2979456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 29802c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 29812c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 2982456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 2983f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2984f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 29854af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 29864af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 29874af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 29887cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 29894af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 29904af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 2991f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2992f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 2993f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 2994f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 2995f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 2996f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 299756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2998f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 299956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 300056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SQRT_F32 : RTLIB::SQRT_F64; 300156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 300256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 300356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 300456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 300556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 300656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::COS_F32 : RTLIB::COS_F64; 300756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 3008f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3009f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 30102ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 301156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 301256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 3013f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3014f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 30152c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 30162c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 30172c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 30182c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 30196ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 30206ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner // We always lower FPOWI into a libcall. No target support it yet. 302156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getValueType(0) == MVT::f32 302256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::POWI_F32 : RTLIB::POWI_F64; 30236ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 302456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 302556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 30266ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 30276ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 302835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 302967993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 303035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 30317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::isVector(Op.getOperand(0).getValueType())) { 30327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 30337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 30347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 30357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 30367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(0)); 30377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 30387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 30397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 30407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 30417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 304207a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 30437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 30447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 30457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 30467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 30477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 30487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 30497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 30507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 30517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 30527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 30537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 30547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 305567993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 305635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 305735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 305835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 305935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 306035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 306135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 306235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 306335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3064c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 306535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 306635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 306735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 306835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3069d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 30702c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3071fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3072fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3073fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 3074fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3075fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3076d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 3077fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 3078fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 3079456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3080456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3081456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3082456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3083456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3084c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3085456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3086456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3087456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3088456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3089456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3090fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 30916269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 30926269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 30936269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 3094456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3095fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 3096fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 3097fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 3098fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 3099fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 31005b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 3101fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3102fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3103fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 3104fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 3105fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3106fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3107c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3108fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 3109c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 3110c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 3111fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 3112c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 3113c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 3114fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3115c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3116c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 3117fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3118fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3119fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3120fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3121fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3122fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3123fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3124fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3125c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3126fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3127fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3128fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3129fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3130fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3131fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3132fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3133fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3134fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3135fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3136fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3137fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3138fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3139fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3140d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3141fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3142fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3143fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3144fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3145f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3146f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 31471618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 31481618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3149456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3150456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3151456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3152456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3153c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3154456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3155456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3156456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3157456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3158456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3159456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3160456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3161456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3162456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 31631618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3164d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3165d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 3166d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 3167d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 3168d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman unsigned ShiftAmt = MVT::getSizeInBits(Node->getValueType(0))-1; 3169d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getConstantFP((double)(1ULL << ShiftAmt), VT); 3170d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 3171d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3172d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3173d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 317401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3175d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3176d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3177d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 3178456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3179456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3180d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3181d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3182d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3183d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 31841618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3185fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 31866af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 31876af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng // Convert f32 / f64 to i32 / i64. 31886af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 318956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 31906af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 31916af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_SINT: 31926af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 319356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 319456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 31956af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 319656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 319756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 31986af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 31996af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_UINT: 32006af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 320156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 320256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 32036af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 320456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 320556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 32066af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 32076af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 32086af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 32096af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 321056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 321156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 32126af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 32136af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3214fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3215c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3216c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3217c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3218fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3219fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3220fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3221d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3222ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen case ISD::FP_EXTEND: 32235411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 32245411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MVT::ValueType newVT = Op.getValueType(); 32255411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MVT::ValueType oldVT = Op.getOperand(0).getValueType(); 32265411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen if (TLI.getConvertAction(oldVT, newVT) == TargetLowering::Expand) { 3227ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen // The only way we can lower this is to turn it into a STORE, 32285411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen // LOAD pair, targetting a temporary location (a stack slot). 32295411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen 32305411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen // NOTE: there is a choice here between constantly creating new stack 32315411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen // slots and always reusing the same one. We currently always create 32325411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen // new ones, as reuse may inhibit scheduling. 3233ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen MVT::ValueType slotVT = 3234ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen (Node->getOpcode() == ISD::FP_EXTEND) ? oldVT : newVT; 3235ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen const Type *Ty = MVT::getTypeForValueType(slotVT); 32365411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty); 32375411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 32385411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MachineFunction &MF = DAG.getMachineFunction(); 32395411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen int SSFI = 32405411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MF.getFrameInfo()->CreateStackObject(TySize, Align); 32415411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 3242ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen if (Node->getOpcode() == ISD::FP_EXTEND) { 3243ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), 3244ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen StackSlot, NULL, 0); 3245ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result = DAG.getExtLoad(ISD::EXTLOAD, newVT, 3246ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result, StackSlot, NULL, 0, oldVT); 3247ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen } else { 3248ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 3249ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen StackSlot, NULL, 0, newVT); 3250ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result = DAG.getLoad(newVT, Result, StackSlot, NULL, 0, newVT); 3251ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen } 32525411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen break; 32535411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 3254849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3255849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen // FALL THROUGH 325613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 32573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 32583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 32593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3260456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 32613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 32623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3263c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 32643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 326503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 326603c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 326713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3268c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3269c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 327013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 32711713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 32721713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 327313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 327423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 327523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 327603c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 327703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 32781713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 327913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 32801713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 328115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 328215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 32831713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 328403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 32851713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 32861713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 32871713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 32881713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 32891713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 329003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 3291f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 3292f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 3293f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 329403c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 32953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 32963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 32970f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 329823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 32990f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 330015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 330145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 330245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 330345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 330455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 330555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 330655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3307c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 330855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 330955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 331045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 331123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 331245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 331345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 331445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 331545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 331627ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 331745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 331845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 331945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 332045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 332145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 33222d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 332345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 332445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 332545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 332645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 332745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 332845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 332944b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty); 3330d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 333145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 3332edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 333344b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner MF.getFrameInfo()->CreateStackObject(TySize, Align); 333445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 33358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 33368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StackSlot, NULL, 0, ExtraVT); 33375f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 3338466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, StackSlot, NULL, 0, ExtraVT); 333945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 334045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 334145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 334255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 334345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 33440f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 33453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 334636397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::ADJUST_TRAMP: { 334736397f50343639ce9a25996f2d790c656791ab92Duncan Sands Tmp1 = LegalizeOp(Node->getOperand(0)); 334836397f50343639ce9a25996f2d790c656791ab92Duncan Sands switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 334936397f50343639ce9a25996f2d790c656791ab92Duncan Sands default: assert(0 && "This action is not supported yet!"); 335036397f50343639ce9a25996f2d790c656791ab92Duncan Sands case TargetLowering::Custom: 335136397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1); 335236397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 335336397f50343639ce9a25996f2d790c656791ab92Duncan Sands if (Result.Val) break; 335436397f50343639ce9a25996f2d790c656791ab92Duncan Sands // FALL THROUGH 335536397f50343639ce9a25996f2d790c656791ab92Duncan Sands case TargetLowering::Expand: 335636397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = Tmp1; 335736397f50343639ce9a25996f2d790c656791ab92Duncan Sands break; 335836397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 335936397f50343639ce9a25996f2d790c656791ab92Duncan Sands break; 336036397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 336136397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 336236397f50343639ce9a25996f2d790c656791ab92Duncan Sands SDOperand Ops[6]; 336336397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 336436397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 336536397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 336636397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 336736397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 336836397f50343639ce9a25996f2d790c656791ab92Duncan Sands assert(Result.Val && "Should always custom lower!"); 336936397f50343639ce9a25996f2d790c656791ab92Duncan Sands break; 337036397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 337145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 3372456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 33734ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 33744ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 33754ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 3376456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 3377456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3378456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 33793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 338045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 338145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 338245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 33833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 33843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 33853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 33868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 33878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 33888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 33898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 339003c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 339103c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 339271c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 339303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 339403c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 339503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 339603c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 339703c8546ec57523970874917854a2fb77b1ff598eChris Lattner 339803c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 339903c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 340003c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 340103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 340240030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 34036fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 340445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 340503c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 3406d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 3407d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 340803c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 3409e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 341039833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 3411e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 341203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 341303c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 3414fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3415fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 3416fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 341703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 3418ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 3419ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 3420ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 3421ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 342203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 342303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 342403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 342503c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 342603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 342703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3428ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 342982fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 3430c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 34317cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 34327cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 343382fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 3434fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 343503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 343603c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 343703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 343803c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 343903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 344003c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 344103c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 344203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 344303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3444e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 3445e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 3446e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 3447e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 3448e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 344903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 345079e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 345179e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 3452e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 345303c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 345403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 34558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 34568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 345713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 34588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 34598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 34608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 34618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 3462456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 34638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 34658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 34668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 34678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 34688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 3469595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 347015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 347113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 347223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 347323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 34748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 34768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 347735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 347835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 347935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 348035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 348135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 34828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 34838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 34848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 34858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 34868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 34878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 34888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 34898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 3490456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 349115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 34928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 34948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34958b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 34968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 34978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 34988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 34998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 350077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 3501456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 35028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 35048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 35058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 35068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 35078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 350815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 350915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 35108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 351123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 351223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 351377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 351477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 35158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 351777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 351877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 351977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 352077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 352115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 352215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 352377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 35248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 35258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 35275e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 35285e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 35295e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 35305e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 35315e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 35328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 35338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 35348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 35358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 35360b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 3537456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 35388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 35408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 35418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 35428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 35438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 3545d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 3546d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 3547d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 3548d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 3549d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 3550d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 3551c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 3552b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 3553b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 3554d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 3555d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3556d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3557d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 35588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 35602c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 35612c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 35622c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 35632c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 35642c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 35652c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 35662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 35672c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 35682c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35692c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 3570da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3571da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3572da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 3573da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3574da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 3575da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3576456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 357715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 357815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3579da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 3580da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 35818b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 35828b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 35838b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 35848b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 35858b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 35868b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 35878b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 35888b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 35898b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 35908b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 35918b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 35928b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 359303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 359403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 359503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 35960f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 35978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 35980f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 35990f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 360001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 36010f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 36020f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 36030f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 36040f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 36050f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 360601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 360701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 360801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 360901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 361001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 361101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 361201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 361301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 361401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 361501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 361601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 361701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 36188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 36198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 362001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 362115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 362215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 36230f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 36240f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 36258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 36268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 36278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 36288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 36298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 36308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 363115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 363215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 363315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 363415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 36358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 36368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 36378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 36388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 36398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 364015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 364115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 36428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 364301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 364401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3645a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 364601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 3647ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 3648ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3649ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3650ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3651ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3652ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = PromoteOp(Node->getOperand(0)); 3653ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3654ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3655ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3656ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 3657ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 3658ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3659ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3660ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3661ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3662ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = PromoteOp(Node->getOperand(1)); 3663ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3664ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3665ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3666ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 366701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 366801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 366901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 3670a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 367101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 367201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 367301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 36748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 36758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 36768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 36778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 36788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 36798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 36808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 368123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 368223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 36838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 36848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 36858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 36868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 36878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3688456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 36898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 36908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 36918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 36928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 369315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 369415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3695456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 36968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 36978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 36988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 36998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 370023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3701456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 37028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37030aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 37040aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 3705456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 3706456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 37070aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 37080aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 37090aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 37100aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 3711466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 37120aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 3713466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 37140aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 37150aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 37160aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 37170aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 37180aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 37198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 37208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 37210aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 3722466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 37230aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 37240aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 3725456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 37260aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 37270aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 3728466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 3729466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 373062f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 373162f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 373262f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 373362f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 373455b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 3735d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getLoadedVT(), 3736d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 3737d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 37384c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 3739456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 37404c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 3741466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 374203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 374303c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 374403c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 3745456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 374603c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 37479373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 37489373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 37499373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 37509373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 3751456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 37529373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 3753d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3754d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 3755d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3756d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3757d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3758b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3759b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), 3760d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 3761d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3762fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3763fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3764fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3765456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 3766456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 3767fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 3768fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3769456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 3770fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3771fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 3772fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3773fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3774456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 3775d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 3776b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 3777b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 377800b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3779b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), NVT), Tmp1); 3780fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3781fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3782fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 378300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 3784b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3785b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), NVT)); 3786fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3787fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 3788fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 37897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 37907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 37916595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 37924aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 37934aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 37944aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 379503c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 379603c8546ec57523970874917854a2fb77b1ff598eChris Lattner 379703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 3798456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3799456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 3800456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 3801456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3802456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 380303c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 380403c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 380503c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 38063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 38077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 38087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 38097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 38107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 38117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 38121597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 38131597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 38141597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 38151597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 38167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Idx = Op.getOperand(1); 38171597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 38181597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDNode *InVal = Vec.Val; 38197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = InVal->getValueType(0); 38207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(TVT); 38211597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 38227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 38237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 38247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 38257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 38267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 38277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Tmp3 = TLI.LowerOperation(Op, DAG); 38287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 38297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 38307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 38317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 38327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 38337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 38347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 38357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 3836844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 38377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 38387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 38397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 38407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 38417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 38427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 38437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 38441597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 38457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 38467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 38477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 38481597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 38491597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 38501597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (CIdx->getValue() < NumElems/2) { 38511597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 38521597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 38531597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 38547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, 38557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 38561597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 38577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 38581597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 38591597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 38607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 38611597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 38627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 38637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 38647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand StackPtr = CreateStackTemporary(Vec.getValueType()); 38657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 38667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 38677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 38687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 38697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 38707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 38717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 38727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 38737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 38741597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 38757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 38761597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 38771597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 38787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 38796595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 38807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDOperand Op) { 38816595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 38826595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 38836595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 38846595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 38856595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 38867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(Vec.getValueType()); 38876595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 38886595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (NumElems == MVT::getVectorNumElements(Op.getValueType())) { 38896595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 38907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 38916595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 38926595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 38936595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 38946595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 38956595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 38966595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 38976595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 38986595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 38996595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 39006595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 39016595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 39026595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 39036595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 39046595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 39057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 39064aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 39074aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 3908750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 3909750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 3910750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 3911750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 3912750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 3913750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 3914750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 3915750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 3916750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 3917750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand Tmp1, Tmp2, Result; 3918750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3919750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 3920750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 3921750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 3922750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 3923750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3924750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 3925750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 3926750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 3927750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3928750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 3929750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 3930750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 3931750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 3932750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3933750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 3934750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 3935750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 3936750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 3937750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3938750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 3939750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3940750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3941750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 3942750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 3943750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 3944750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 3945750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 3946750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 3947750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 3948750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3949750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 3950750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3951750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3952750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3953750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3954750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3955750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 3956750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3957750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 3958750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3959750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3960750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3961750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3962750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 39632b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 39642b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 39652b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 39662b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 396756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 39682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 39692b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 39702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 397156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 39722b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 39732b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 39742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 397556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 39762b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 39772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 39782b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 397956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 39802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 39812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 39822b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 398356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 39842b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 39852b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 39862b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 398756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 39882b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 39892b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 39902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 399156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 39922b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 39932b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 3994d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 3995d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 39962b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 39975efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 39982b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 39992b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 400056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 40012b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 40022b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 40032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 400456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 40052b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 40062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 400756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 40082b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 401056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 40112b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 401356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 40142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40152b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 401656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 40172b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 401856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 401956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 402056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 40212b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 40222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 40232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 40242b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 40252b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 402656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Tmp1 = ExpandLibCall(TLI.getLibcallName(LC1), 402747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4028b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 40292b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4030d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 403156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 40322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), Tmp1, Tmp2, CC); 403356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LHS = ExpandLibCall(TLI.getLibcallName(LC2), 403447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4035b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 40362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHS, Tmp2, 4037d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 40382b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 40392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 40402b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 40412b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 40422b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 40432b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 40442b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 40452b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4046750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 4047750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 40482b49c500838666dd0186d021389d4dd70ffda240Evan Cheng ExpandOp(RHS, RHSLo, RHSHi); 4049750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4050750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4051750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4052750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4053750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4054750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4055750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4056750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4057750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4058750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4059750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4060750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4061750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4062750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4063750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4064750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4065750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4066750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4067750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4068750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4069750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4070750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4071750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 4072750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4073750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4074750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4075750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4076750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4077750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4078750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4079750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4080750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 40812e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 40822e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4083750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4084750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4085750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4086750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4087750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4088750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4089750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4090750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4091750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4092750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4093750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4094750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4095750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4096750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4097750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4098750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4099750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 41002e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 41012e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC, 41022e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng false, DagCombineInfo); 41032e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 41042e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 41052e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 41062e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 41072e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 41082e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi, CC); 41092e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 41102e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 41112e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 41122e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if ((Tmp1C && Tmp1C->getValue() == 0) || 41132e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 0 && 41142e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 41152e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 41162e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 1 && 41172e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 41182e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 41192e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 41202e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 41212e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 41222e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 41232e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 41242e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 41252e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 41262e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 41272e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 41282e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result=DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 41292e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 41302e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 41312e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 41322e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 41332e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4134750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4135750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 41362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4137750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4138750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4139750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4140750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 414135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 4142232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 4143232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 414435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 414535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 414635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 4147ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(DestVT); 414835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 414935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 41508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, NULL, 0); 415135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 4152466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 415335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 415435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 41554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 41564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 41574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 41584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand StackPtr = CreateStackTemporary(Node->getValueType(0)); 4159786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 41608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0); 4161466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, NULL, 0); 41624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 41634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 41644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4165ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 416607a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4167ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4168ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4169ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 417087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4171033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4172ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 417387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 4174033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 4175033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 41762eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 41772eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 41782eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 41792eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 41802eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4181033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4182033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 418389a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4184033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4185ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4186033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 418787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 41882eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 41892eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 41902eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 41912eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 41922eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 41932eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4194ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4195ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4196ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4197ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4198ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4199ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4200ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4201ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4202ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4203ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4204ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 42052eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4206ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 4207ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4208ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 4209ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 4210ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4211033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4212ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4213ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 4214ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(ConstantFP::get(OpNTy, V->getValue())); 4215ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 4216ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 4217b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 4218ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4219ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 4220ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4221ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4222ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 42239d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 4224ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 4225466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 4226ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 42272eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 42282eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 42292eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 42302eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 42312eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 423251eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman SDOperand Zero = DAG.getConstant(0, MVT::getVectorElementType(MaskVT)); 42332eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 4234bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4235bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 4236033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 42372eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 42384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 42392eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 42402eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 42412eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 42422eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 42432eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 42442eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 42452eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 42462eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 42472eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 42482eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 42492eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4250033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 4251033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 4252033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 4253033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 4254033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 4255033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 4256033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 4257033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 4258033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4259033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4260033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 4261033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 426251eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MaskVec[*II] = DAG.getConstant(i, MVT::getVectorElementType(MaskVT)); 4263033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 4264033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4265bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4266bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 4267033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4268033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 42694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 42704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 4271bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 4272033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4273033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4274033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4275033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 4276033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 4277033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4278033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 4279033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4280033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 4281bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 4282bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 4283033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4284033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4285ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4286ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 4287ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 4288ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 4289ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4290ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 4291ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(VT); 4292ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4293ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 4294bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 4295ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 4296ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 4297ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 4298ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 4299ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 4300ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 4301ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4302841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 4303ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4304ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 4305ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 4306ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4307786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 43088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 4309ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4310ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4311ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 4312ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 4313bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 4314bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 4315ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 4316ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 4317ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4318ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 4319466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 4320ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4321ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4322ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// CreateStackTemporary - Create a stack temporary, suitable for holding the 4323ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// specified value type. 4324ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::CreateStackTemporary(MVT::ValueType VT) { 4325ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo(); 4326ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned ByteSize = MVT::getSizeInBits(VT)/8; 432758092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *Ty = MVT::getTypeForValueType(VT); 4328d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned StackAlign = (unsigned)TLI.getTargetData()->getPrefTypeAlignment(Ty); 432958092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int FrameIdx = FrameInfo->CreateStackObject(ByteSize, StackAlign); 4330ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getFrameIndex(FrameIdx, TLI.getPointerTy()); 4331ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4332ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 43335b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 43345b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 43355b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 43365b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 43375b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 43385b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 43395b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4340bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 4341f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 4342f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 43435b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 43445b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 43455b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 43465b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4347e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 4348e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 4349e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 4350e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 4351e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 4352e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 4353e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 4354e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 4355f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4356e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 4357f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 4358f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 4359f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 4360f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 4361f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4362f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Handle the case when Amt is an immediate. Other cases are currently broken 4363f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // and are disabled. 4364f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 4365f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 4366f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 4367f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 4368f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 4369f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 4370f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 4371f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4372f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4373f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4374f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4375f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4376f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 4377ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4378ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 4379ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 4380f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4381f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 4382f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 4383f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 4384f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 4385f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4386f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4387f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 4388f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4389f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4390f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4391f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4392f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 4393f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4394ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4395ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4396ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 4397f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4398f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4399f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4400f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4401f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 4402f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4403f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4404f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 4405f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4406edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 4407f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4408f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4409edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 4410f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 4411edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4412f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4413ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4414ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4415edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4416ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 4417f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4418f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4419f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4420f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4421f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 4422f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4423f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4424f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4425f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 44260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 44270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 44280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 44290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner uint64_t Mask = NVTBits, KnownZero, KnownOne; 4430ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 44310ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 44320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is one, then we can do 44330ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 44340ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownOne & Mask) { 44350ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 44360ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 44370ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 44380ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 44390ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 44400ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 44410ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 44420ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 44430ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 44440ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 44450ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 44460ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 44470ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 44480ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 44490ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 44500ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 44510ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 44520ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 44530ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 44540ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 44550ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 44560ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 44570ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 44580ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 44590ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is zero, then we can do 44600ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 44610ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownZero & Mask) { 44620ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 44630ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 44640ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 44650ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 44660ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 44670ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 44680ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 44690ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 44700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 44710ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 44720ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 44730ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 44740ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 44750ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 44760ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 44770ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 44780ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 44790ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 44800ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 44810ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 44820ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 44830ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 44840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 44850ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 44860ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 44870ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 44880ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 44890ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 44900ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 44910ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 4492f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 4493e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 449477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 44959c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 449677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 449777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 449877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 449977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 450077e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 450147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 45026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 45036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 45046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 45056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 45066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 45076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 450877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 450947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 451077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 451177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 451277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 451347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 4514d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 451547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 451677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 451777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 4518edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 45190d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 452077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 45210d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 452247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(InChain, RetTy, isSigned, false, CallingConv::C, false, 4523adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 45240d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 45256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 45266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 45276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 45286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 452999c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 45300d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 453177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 453277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 4533456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 453499c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 453577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 453699c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 453799c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 453877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 453922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 454022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 454122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 454222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 45434c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 45444c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 454522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 454622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 454722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 454822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 454922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 455022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 455122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 455222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 455322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 455422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 455522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 455622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 455722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 455822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 455922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 456022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 456122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 456222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 456322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 456422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 456522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 456622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 456722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 456822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 456922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 457022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 457122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 457222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 457347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 457422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 457522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 457622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 457722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 457822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 4579466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 458022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 458122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unexpected conversion"); 45824c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 458322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 4584466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng CPIdx, NULL, 0, MVT::f32); 458522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 45864c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng MVT::ValueType SCVT = SignedConv.getValueType(); 45874c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 45884c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 45894c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 45904c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (MVT::getSizeInBits(SCVT) != MVT::getSizeInBits(DestTy)) { 45914c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(SCVT == MVT::i32 && DestTy == MVT::f64); 45924c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BUILD_PAIR, MVT::i64, 45934c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 45944c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 45954c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 45964c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 459722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 459822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 459922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 460022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 460122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 460222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 460322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 460422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 460522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 460622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 460722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 460822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 460922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 461022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 461122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 461222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 461322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 461422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 461522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 461622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 461722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 461822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 461922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 462022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 462156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 462222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 462356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F32; 462422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 462522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 462656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F64; 462722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 46286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 46294c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 46306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 46316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 463256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng return ExpandLibCall(TLI.getLibcallName(LC), Source.Val, isSigned, 463356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng UnusedHiPart); 463422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 463522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 463622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 463722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 463822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 463922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 464022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 464122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 464222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 464322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 464422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 464522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 464658092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner // get the stack frame index of a 8 byte buffer, pessimistically aligned 464722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 464858092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *F64Type = MVT::getTypeForValueType(MVT::f64); 464958092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner unsigned StackAlign = 4650d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner (unsigned)TLI.getTargetData()->getPrefTypeAlignment(F64Type); 465158092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, StackAlign); 465222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 465322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 465422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 465522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 465622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 4657408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 4658408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 4659408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 4660408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 4661408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 466222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 466322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 466422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 466522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 466622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 466722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 466822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 466922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 467022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 467122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 4672786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 46738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 467422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 467522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 467622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 46778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 467822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 4679466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 468022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 468122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 468222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 468322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 468422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 468522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 468622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 468722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 468822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 468922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 469022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 469122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 469222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 469322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 469422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if f32 then cast to f32 469522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f32, Sub); 469622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 469722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 469822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 469922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 470022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 470122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 470222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 470322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 470422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 470522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 470622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 470722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 470822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 470922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 471022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 471122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 471222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 471322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 471422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 471522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 471622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 471722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 471822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 471922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 472022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 472147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 472222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 472322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 472422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 472522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 472622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 4727466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 472822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 472922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestVT == MVT::f64 && "Unexpected conversion"); 473022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, 473122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 4732466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng NULL, 0, MVT::f32)); 473322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 473422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 473522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 473622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 473722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 473822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 473922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 474022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 474122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 474222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 474322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 474422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 474522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 474622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 474722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 474822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 474922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 475022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 475122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 475222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 475322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 475422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 475522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 475622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 475722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 475822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 475922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 476022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 476122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 476222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 476322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 476422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 476522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 476622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 476722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 476822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 476922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 477022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 477122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 477222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 477322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 477422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 477522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 477622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 477722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 477822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 477922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 478022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 478122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 478222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 478322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 478422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 478522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 478622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 478722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 478822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 478922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 479022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 479177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 479277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 479322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 479422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 479522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 479622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 479722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 479822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 479922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 480022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 480122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 480222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 48039c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 480422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 4805e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 480622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 480722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 480822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 480922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 481066de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 481122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 481222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 481322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 481422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 481522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 481622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 481722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 481822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 481922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 482022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 482122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 482222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 4823e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 482422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 482522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 482622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 482722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 482822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 482922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 483022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 483122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 483222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 483322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 4834e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 483522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 48360d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 483722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 4838a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 4839a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 484022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Truncate the result of the 484122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // extended FP_TO_*INT operation to the desired size. 484222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, 484322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(OpToUse, NewOutTy, LegalOp)); 484422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 484513689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 484622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 484722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 484822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 484922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 485022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 485122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 485222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 485322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 485422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 485522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 485622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 485722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 485822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 485922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 486022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 486122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 486222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 486322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 486422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 486522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 486622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 486722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 486822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 486922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 487022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 487122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 487222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 487322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 487422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 487522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 487622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 487722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 487822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 487922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 488022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 488122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 488222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 488322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 488422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 488522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 488622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 488722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 488822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 488922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 48900d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 489177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 4892edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 489322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 489422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 489522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 489622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 489722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 489822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 489922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 490022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 490122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 490222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 490322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 490422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 490522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 4906b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 490722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 490822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 490922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 491022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 491122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 491222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 491322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 491422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 491522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 491622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 491722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 491822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 491922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 492022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 492122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 492222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 492322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 492422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 492522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 492622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 492722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 492822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 4929b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 493022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 493122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 493222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 493322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 493422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 493522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 493622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 493722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 493822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 493922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 494022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 494122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 494222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 494322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 494422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 494522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 494622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 494722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 494822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 494922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 495022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 4951b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), VT), 495222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 495322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 495422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 495522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 495622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 4957e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 49583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 49593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 49603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 49613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 49623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 49633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 49643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 496571c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 49663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 49673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 49681a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 49697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::isVector(VT)) && 49703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 49713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 49726fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 497340030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 49746fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 49756fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 49766fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 49776fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 49786fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 49793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 49803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 49813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 4982348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 4983348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 4984348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 4985e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 498639833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 4987e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 49883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 49893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 4990fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 4991aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 4992fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 4993fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 4994fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 49953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 49963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 49973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 49983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 49993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 50003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5001004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5002004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5003279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 50049f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 50059f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5006004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5007004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5008d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 50098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 50108137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 50118137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5012d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 501358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 501458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 501558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 50164bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 50174bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 50184bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 50194bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 50204bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 502158f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 502258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 502358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 502458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5025d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5026d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5027d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5028d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5029d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5030d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5031d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5032d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5033d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5034edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5035edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 50369b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 50379b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 50389b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5039edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5040edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5041edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 504239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 504339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 50443becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 504539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 504639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 50477cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 50487cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 504939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 505039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 505139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 505239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 505339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 505439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 505539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 505639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 505739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 505839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 50593becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 506039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 506139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 50627cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 50637cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 506439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 506539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 506639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 506739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 506839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 506939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 507039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 5071edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 5072acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 50738137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 50748137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5075acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 5076acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 5077acc398c195a697795bff3245943d104eb19192b9Nate Begeman 5078acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 50798137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 5080acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 5081acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 5082acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 5083acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 5084acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 5085acc398c195a697795bff3245943d104eb19192b9Nate Begeman 50863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 5087466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 5088466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 5089466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 5090466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 5091d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 5092d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 5093d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 5094466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5095466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 5096d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5097d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5098004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 5099004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 5100004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 5101004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 51029f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 51039f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 51049f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5105004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5106004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5107466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5108466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 5109466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 5110466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 5111466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng getIntPtrConstant(IncrementSize)); 51127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 5113d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman if (Alignment > IncrementSize) 5114d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment = IncrementSize; 5115d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5116d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5117466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5118466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 5119466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 5120466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5121466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 5122466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5123466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5124466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5125466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (!TLI.isLittleEndian()) 5126466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 5127466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 51282e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType EVT = LD->getLoadedVT(); 5129548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 5130548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng if (VT == MVT::f64 && EVT == MVT::f32) { 5131548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 5132548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 5133d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5134548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 5135548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 5136548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 5137548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 5138548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 5139466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5140466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 5141466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 5142d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5143466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 5144466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 5145d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 5146d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 5147466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5148466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5149466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 5150466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5151466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 5152466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 5153466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 5154466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 5155466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 5156466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 5157466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 5158466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 5159466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 5160466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 5161466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 5162466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 5163466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 5164466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 51653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 51663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 51673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 51683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 51693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 51703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 51713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 51723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 51733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 51743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 51753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 51763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 51773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 5178456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 51793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 51803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 518119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 518219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 5183456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 518419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 518519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 51863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 51873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 51889373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 51899373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 51909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 51919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 519219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 519319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 51949373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 51959373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 519619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 519719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 519819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 51999373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 52009373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 52018137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 520213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 52038137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 520413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 520513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 520613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 52073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 52083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 52093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 52108137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 5211edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 52123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 52133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 52142dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 52158137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 52168137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 52173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 52183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 52198137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 52203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 52213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 52228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 5223edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 52243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 52253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 52263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 522735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 52284c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 52294c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 52304c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 52314c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 52324c948eb373779718e5be36d7674382b52114bf65Chris Lattner 52334c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 52344c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 52354c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 52364c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 52374c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 52384c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 52394c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 52404c948eb373779718e5be36d7674382b52114bf65Chris Lattner 524135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 5242f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 5243f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 5244f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 5245f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5246f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 5247f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 5248f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 5249f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5250f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 5251f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5252f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 52531a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 525413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 525513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 525619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 525719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 52587b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 52597b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 52607b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 52617b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 52627b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 52637b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 52647b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 52657b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 52661a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 52671a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 52681a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 5269f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 5270f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 527113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Tmp = ExpandBIT_CONVERT(VT, Node->getOperand(0)); 5272f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 527335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 527435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 527535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 5276f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 52778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::READCYCLECOUNTER: 5278308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 5279308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 5280308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 52818137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = TLI.LowerOperation(Op, DAG); 52828137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner assert(Lo.Val && "Node must be custom expanded!"); 52838137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Lo.getValue(1); 5284308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 52858137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner LegalizeOp(Lo.getValue(2))); 5286f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 5287f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 52884e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 52894e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 529056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 529180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 5292f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 5293f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5294f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 52958137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 52968137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 5297f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 5298d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5299f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 5300f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 530180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 530280a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 530307dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 530407dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 530507dffd6af673c73352150583150b242a93694f00Chris Lattner break; 530607dffd6af673c73352150583150b242a93694f00Chris Lattner } 530780a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5308d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 530956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 53104e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 531156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F32_I64; 53124e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 531356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F64_I64; 531456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 531556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 53164e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 531756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 5318d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 531956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 532080a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 53218137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 53228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 53238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 53248137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 53258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 53268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 53278137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 53288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 53298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 53308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 533107dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 533207dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 533307dffd6af673c73352150583150b242a93694f00Chris Lattner break; 533407dffd6af673c73352150583150b242a93694f00Chris Lattner } 533580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5336d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 533756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 53384e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 533956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F32_I64; 53404e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 534156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F64_I64; 534256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 534356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 53444e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 534556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 53464e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 534705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 534850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5349348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 535050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 53518137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 535250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 535350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 535450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 535550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 535650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 535750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 535850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 535950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 536050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 536179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 536279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 536379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 536479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 536579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 536679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 536779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 536879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 536979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 537079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 537179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 537279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 537379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 537479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 537579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 537679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 537779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 537879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 5379e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5380348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5381e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 53824759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 53834759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 538405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 538505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 538605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 538705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5388348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 53894759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 53904759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 53914759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5392e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 539356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SHL_I64), Node, 539456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*left shift=unsigned*/, Hi); 5395e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 539605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5397e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 539805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 539950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5400348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 540150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 54028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 540350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 540450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 540550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 540650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 540750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 540850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 540950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 541050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 541150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5412e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5413348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5414e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 54154759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 54164759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 541705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 541805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 541905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 542005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5421348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 54224759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 54234759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 54244759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5425e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 542656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRA_I64), Node, 542756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng true/*ashr is signed*/, Hi); 5428e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 542905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 543005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 543105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 543250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5433348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 543450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 54358137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 543650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 543750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 543850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 543950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 544050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 544150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 544250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 544350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 544450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5445e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5446348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5447e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 54484759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 54494759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 545005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 545105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 545205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 545305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5454348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 54554759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 54564759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 54574759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5458e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 545956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRL_I64), Node, 546056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*lshr is unsigned*/, Hi); 5461e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 546205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5463e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 5464edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 54658137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 54668137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 54678137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 54688137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 54698137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 54708137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 54718137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 54728137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 54738137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 54748137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 54758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 54768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 54778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 54788137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 54798137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 548079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 548179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 5482bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 5483bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 5484bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 5485bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 5486551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 548779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5488bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 548979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5490551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 549179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5492bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 549379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5494551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 549584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 54968137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 5497b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5498b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 5499b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 5500b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5501b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5502b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5503b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5504b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5505b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 5506b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5507b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5508b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 5509b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5510b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5511b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5512b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 5513b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5514b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5515b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5516b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5517b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5518b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5519b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5520b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5521b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 5522b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 5523b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5524b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5525b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5526b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5527b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5528b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 5529b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5530b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5531b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 5532b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5533b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 5534b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5535b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5536b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5537b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5538b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5539c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 55407d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 55417d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 55428829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 55438829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 55448829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 55457d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 55467d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 55477d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 55487d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 55493f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 55503f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 55513f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS || HasMULHU) { 5552c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 5553c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 5554c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 555556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman unsigned SH = MVT::getSizeInBits(RH.getValueType())-1; 55562cbba8934745fe30662f2d5a59d03545ad5212c5Nate Begeman // FIXME: Move this to the dag combiner. 555756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // MULHS implicitly sign extends its inputs. Check to see if ExpandOp 555856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // extended the sign bit of the low half through the upper half, and if so 555956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // emit a MULHS instead of the alternate sequence that is valid for any 556056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // i64 x i64 multiply. 55613f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS && 556256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is RH an extension of the sign bit of RL? 556356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOpcode() == ISD::SRA && RH.getOperand(0) == RL && 556456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOperand(1).getOpcode() == ISD::Constant && 556556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(RH.getOperand(1))->getValue() == SH && 556656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is LH an extension of the sign bit of LL? 556756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOpcode() == ISD::SRA && LH.getOperand(0) == LL && 556856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOperand(1).getOpcode() == ISD::Constant && 556956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(LH.getOperand(1))->getValue() == SH) { 5570a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5571a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5572a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 557356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 5574a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 55753f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng } else if (HasMULHU) { 5576a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5577a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5578a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner 5579a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 558056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 558156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 558256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 558356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 558456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 5585a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 558656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 5587c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 55883f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 558956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::MUL_I64), Node, 559056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 5591c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 5592c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 559356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 559456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SDIV_I64), Node, true, Hi); 559556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 559656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 559756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UDIV_I64), Node, true, Hi); 559856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 559956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 560056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SREM_I64), Node, true, Hi); 560156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 560256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 560356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UREM_I64), Node, true, Hi); 560456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 56055c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 56061a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 560756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 560856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::ADD_F32 : RTLIB::ADD_F64), 560956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 56101a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56111a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 561256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 561356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::SUB_F32 : RTLIB::SUB_F64), 561456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 56151a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56161a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 561756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 561856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::MUL_F32 : RTLIB::MUL_F64), 561956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 56201a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56211a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 562256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 562356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::DIV_F32 : RTLIB::DIV_F64), 562456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 56251a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56261a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 562756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi); 56281a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56291a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 563056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPROUND_F64_F32),Node,true,Hi); 56311a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 5632c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio case ISD::FPOWI: 5633c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 5634c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio ? RTLIB::POWI_F32 : RTLIB::POWI_F64), 5635c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Node, false, Hi); 5636c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio break; 563798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 563898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 563998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 564056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 564198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 564256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 564356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SQRT_F32 : RTLIB::SQRT_F64; 564456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 564556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 564656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 564756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 564856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 564956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::COS_F32 : RTLIB::COS_F64; 565056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 565198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 565298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 565356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, false, Hi); 565498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 565598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 5656966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 5657966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5658966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 5659966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 5660966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5661966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5662966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 5663966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5664966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5665966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5666966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5667966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 5668966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5669966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 5670966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 5671966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5672966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5673966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 5674966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5675966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5676966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5677966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5678912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 5679912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 5680912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 5681912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 5682912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 5683912095becac923ff614d7b07728eb345ada67765Evan Cheng } 56847df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 56857df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 56867df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 56877df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng MVT::ValueType SrcVT = Node->getOperand(0).getValueType(); 568856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 56897df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) { 56907df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 569156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F32 : RTLIB::UINTTOFP_I64_F32; 56927df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 569356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F64 : RTLIB::UINTTOFP_I64_F64; 56947df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } else { 56957df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 569656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 56977df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 569856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 56997df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 57007df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 57017df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng // Promote the operand if needed. 57027df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (getTypeAction(SrcVT) == Promote) { 57037df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng SDOperand Tmp = PromoteOp(Node->getOperand(0)); 57047df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Tmp = isSigned 57057df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 57067df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng DAG.getValueType(SrcVT)) 57077df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng : DAG.getZeroExtendInReg(Tmp, SrcVT); 57087df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 57097df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 57104c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng 57114c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng const char *LibCall = TLI.getLibcallName(LC); 57124c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (LibCall) 57134c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Hi); 57144c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng else { 57154c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 57164c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Node->getOperand(0)); 57174c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 57184c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng ExpandOp(Lo, Lo, Hi); 57194c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 57207df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 57217df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 572298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 57233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 572483397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 572583397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 572683397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 572783397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 572813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 572913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 573013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 573183397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 573205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 573305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 573440030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 573505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 57363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 57373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 57397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 5740c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 5741c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 57427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && "Cannot split non-vector type!"); 5743c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 57447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElements = MVT::getVectorNumElements(Node->getValueType(0)); 5745c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 5746c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NewNumElts = NumElements/2; 57477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewEltVT = MVT::getVectorElementType(Node->getValueType(0)); 57487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorType(NewEltVT, NewNumElts); 5749c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5750c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 5751c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 5752c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 5753c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 5754c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 5755c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 5756c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 5757c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5758c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5759c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 5760e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 5761e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 576239833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 5763e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 5764e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 57657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 57667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 57677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 57687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 57697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 5770bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 5771bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_begin()+NewNumElts); 57727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT, &LoOps[0], LoOps.size()); 5773c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5774bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts, 57757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 57767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT, &HiOps[0], HiOps.size()); 5777c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5778c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 57797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 57807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 57817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 57827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 57837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 57847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 57857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 57867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 57877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT, &LoOps[0], LoOps.size()); 57886595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 57897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 57907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 57917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT, &HiOps[0], HiOps.size()); 57927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 57936595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 57946595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 57957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 57967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 57977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 57987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 57997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 58007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 58017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 58027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 58037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 58047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 58057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 58067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: { 5807c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 5808c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 5809c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 5810c7029805ef35ce9805931067b841e6af11db382eChris Lattner 58117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(Node->getOpcode(), NewVT, LL, RL); 58127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(Node->getOpcode(), NewVT, LH, RH); 5813c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5814c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 58157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 58167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 58177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LD->getChain(); 58187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LD->getBasePtr(); 58197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 58207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 58217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 58227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 58237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 58247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 58257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned IncrementSize = NewNumElts * MVT::getSizeInBits(NewEltVT)/8; 5826c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 5827c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 58287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 58297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Alignment > IncrementSize) 58307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Alignment = IncrementSize; 58317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 5832c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5833c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 5834c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 5835c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5836c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 5837c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5838c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5839c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5840c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5841c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 58427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 58437692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 58447692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 584510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand InOp = Node->getOperand(0); 584610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman if (!MVT::isVector(InOp.getValueType()) || 584710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman MVT::getVectorNumElements(InOp.getValueType()) == 1) { 584810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 584910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 585010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 585110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand Ptr = CreateStackTemporary(InOp.getValueType()); 58527692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 5853786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 585410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman InOp, Ptr, NULL, 0); 585510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, NULL, 0); 58567692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 585710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 585810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 585910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT, Lo); 586010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT, Hi); 586110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 58627692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 5863c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5864c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5865c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 586640030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 5867c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 586810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 5869c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5870c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5871c7029805ef35ce9805931067b841e6af11db382eChris Lattner 587289b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 587389b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 587489b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 58757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) { 58767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && 58777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "Bad ScalarizeVectorOp invocation!"); 5878c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 58797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorElementType(Op.getValueType()); 58807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::getVectorNumElements(Op.getValueType()) == 1); 5881c7029805ef35ce9805931067b841e6af11db382eChris Lattner 58827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 58837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand>::iterator I = ScalarizedNodes.find(Op); 58847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 5885c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5886c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 5887c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 58882332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 5889e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 589039833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 5891e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 58927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 58937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 58947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 58957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 58967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 58977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 58987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 58997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 59007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 59017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 59027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 59037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 59047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 59057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 59067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 59077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 59087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 5909c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 59107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 59117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 5912c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 59137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 59147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 59157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 59167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 59177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 59187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 59197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 59207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 59217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 59227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 59237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 59247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 59257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 5926c7029805ef35ce9805931067b841e6af11db382eChris Lattner 59277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 59287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 59297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, 59307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LD->isVolatile(), LD->getAlignment()); 59317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 5932c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5933c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 5934c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5935c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 59367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 59377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 59387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 59397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 59407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 59417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 5942c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 59437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 59446595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 59456595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 59466595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 59476595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 59487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 59497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 59507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand EltNum = Node->getOperand(2).getOperand(0); 59517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 59527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 59537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 59547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 59552332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 59567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 59577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 59587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 59596595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 59606595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 59617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: 59627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 5963db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 59647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 5965b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 59667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 59677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 5968b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 5969c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5970c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5971c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 5972c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 59737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 59747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 5975c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 5976c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5977c7029805ef35ce9805931067b841e6af11db382eChris Lattner 59783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 59793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 59803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 59819c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 59825e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 59835e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 59843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 59853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 5986456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 59873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 59883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 5989