LegalizeDAG.cpp revision 118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6
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; 489118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen ConstantFP *LLVMC = ConstantFP::get(MVT::getTypeForValueType(VT), 4909e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CFP->getValueAPF()); 4919f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 4929e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (VT!=MVT::f64 && VT!=MVT::f32) 4939e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Invalid type expansion"); 4949d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen return DAG.getConstant(LLVMC->getValueAPF().convertToAPInt().getZExtValue(), 4959d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen isDouble ? MVT::i64 : MVT::i32); 496279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 497279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 498f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen if (isDouble && CFP->isValueValidForType(MVT::f32, CFP->getValueAPF()) && 499004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Only do this if the target has a native EXTLOAD instruction from f32. 5009e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // Do not try to be clever about long doubles (so far) 501004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, MVT::f32)) { 502004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC,Type::FloatTy)); 503004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng VT = MVT::f32; 504004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Extend = true; 505004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 506004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 507004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 508004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (Extend) { 509004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 510004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng CPIdx, NULL, 0, MVT::f32); 511004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } else { 512004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 513004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 514004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 515004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 517912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 518912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 519912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 520912095becac923ff614d7b07728eb345ada67765Evan ChengSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT::ValueType NVT, 521912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 522068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng MVT::ValueType VT = Node->getValueType(0); 523912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcVT = Node->getOperand(1).getValueType(); 5247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 5257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 526912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 527068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 528912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 529068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 530912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 531912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 532068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 533912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 534068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 535912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 536912095becac923ff614d7b07728eb345ada67765Evan Cheng int SizeDiff = MVT::getSizeInBits(SrcNVT) - MVT::getSizeInBits(NVT); 537912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 538912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 539912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 540912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 541912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 542912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 543068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 544068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 545068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 546068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 547068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 548068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 549912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 550068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 551068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 552068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 553912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 554912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 555912095becac923ff614d7b07728eb345ada67765Evan Cheng} 556912095becac923ff614d7b07728eb345ada67765Evan Cheng 557f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 558f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 559f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 560f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 561f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = ST->getChain(); 562f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = ST->getBasePtr(); 563f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Val = ST->getValue(); 564f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = Val.getValueType(); 565907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int Alignment = ST->getAlignment(); 566907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int SVOffset = ST->getSrcValueOffset(); 567907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (MVT::isFloatingPoint(ST->getStoredVT())) { 568907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a bitconvert of the value to the integer type of the 569907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // same size, then a (misaligned) int store. 570907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 571907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (VT==MVT::f64) 572907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 573907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (VT==MVT::f32) 574907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 575907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 576907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(0 && "Unaligned load of unsupported floating point type"); 577907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 578907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, intVT, Val); 579907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getStore(Chain, Result, Ptr, ST->getSrcValue(), 580907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, ST->isVolatile(), Alignment); 581907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 582907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(MVT::isInteger(ST->getStoredVT()) && 583907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen "Unaligned store of unknown type."); 584f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 585f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType NewStoredVT = ST->getStoredVT() - 1; 586f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewStoredVT); 587f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 588f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 589f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Divide the stored value in two parts. 590f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 591f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo = Val; 592f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Hi = DAG.getNode(ISD::SRL, VT, Val, ShiftAmount); 593f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 594f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Store the two parts 595f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Store1, Store2; 596f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store1 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Lo:Hi, Ptr, 597f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset, NewStoredVT, 598f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->isVolatile(), Alignment); 599f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 600f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 601f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store2 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Hi:Lo, Ptr, 602f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset + IncrementSize, 603f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewStoredVT, ST->isVolatile(), Alignment); 604f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 605f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::TokenFactor, MVT::Other, Store1, Store2); 606f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 607f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 608f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedLoad - Expands an unaligned load to 2 half-size loads. 609f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 610f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedLoad(LoadSDNode *LD, SelectionDAG &DAG, 611f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 612f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int SVOffset = LD->getSrcValueOffset(); 613f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = LD->getChain(); 614f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = LD->getBasePtr(); 615f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = LD->getValueType(0); 616907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType LoadedVT = LD->getLoadedVT(); 617907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (MVT::isFloatingPoint(VT)) { 618907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a (misaligned) integer load of the same size, 619907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // then bitconvert to floating point. 620907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 621907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (LoadedVT==MVT::f64) 622907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 623907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (LoadedVT==MVT::f32) 624907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 625907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 626907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(0 && "Unaligned load of unsupported floating point type"); 627907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 628907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand newLoad = DAG.getLoad(intVT, Chain, Ptr, LD->getSrcValue(), 629907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, LD->isVolatile(), 630907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen LD->getAlignment()); 631907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, LoadedVT, newLoad); 632907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (LoadedVT != VT) 633907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, VT, Result); 634907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 635907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Ops[] = { Result, Chain }; 636907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 637907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Ops, 2); 638907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 639907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(MVT::isInteger(LoadedVT) && "Unaligned load of unsupported type."); 640907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType NewLoadedVT = LoadedVT - 1; 641f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewLoadedVT); 642f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int Alignment = LD->getAlignment(); 643f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 644f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ISD::LoadExtType HiExtType = LD->getExtensionType(); 645f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 646f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. 647f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (HiExtType == ISD::NON_EXTLOAD) 648f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio HiExtType = ISD::ZEXTLOAD; 649f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 650f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Load the value in two parts 651f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo, Hi; 652f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (TLI.isLittleEndian()) { 653f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 654f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset, NewLoadedVT, LD->isVolatile(), Alignment); 655f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 656f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 657f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), 658f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 659f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Alignment); 660f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 661f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), SVOffset, 662f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewLoadedVT,LD->isVolatile(), Alignment); 663f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 664f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 665f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 666f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 667f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Alignment); 668f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 669f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 670f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // aggregate the two parts 671f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 672f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Result = DAG.getNode(ISD::SHL, VT, Hi, ShiftAmount); 673f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = DAG.getNode(ISD::OR, VT, Result, Lo); 674f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 675f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 676f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi.getValue(1)); 677f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 678f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ops[] = { Result, TF }; 679f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), Ops, 2); 680f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 681912095becac923ff614d7b07728eb345ada67765Evan Cheng 682a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 683a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 684a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 685a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 6863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 68709ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 68809ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 68909ec1b058331aadb29a348091611d23892b5c492Chris Lattner 690c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 691e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 69245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 693e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 6943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 695e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 69645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 69745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 698c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 699c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 7003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 701c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 70203c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 7033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 70645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 70745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 708718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 709e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 7103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7119373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 7123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 713456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 714456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 7153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 716948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 717948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 718948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 719948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 720948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 72137efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 722948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 7233181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 724948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 725948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 726b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 727948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 728948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 729948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 730948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 731948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 732948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 733948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner assert(TLI.isOperationLegal(Node->getValueType(0), Node->getValueType(0)) && 734948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 735948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 7363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 737d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 738d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 739d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 740f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 741c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 742d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 743c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 744f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 745d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 746d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 747d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 748d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 749d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 750d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 751e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 75239833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 753e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 7543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 7553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 7560d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 7573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 758b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 75903c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 76037efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 76137efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 7620c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 7630c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 764948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 765948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 766948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 767948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 7680c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 7690c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 7700c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 7713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 772bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 773bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 774bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 775bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 776bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 777bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 778bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 779bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 780bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 781bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 782055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov case ISD::FRAME_TO_ARGS_OFFSET: { 783066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 784066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 785066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov default: assert(0 && "This action is not supported yet!"); 786066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Custom: 787066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 788066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov if (Result.Val) break; 789066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov // Fall Thru 790066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Legal: 791066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = DAG.getConstant(0, VT); 792066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 793066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov } 794055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov } 795066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 7962bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 7972bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 7982bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey MVT::ValueType VT = Node->getValueType(0); 7992bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8002bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 8012bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 8028782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 8032bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = DAG.getCopyFromReg(Tmp1, Reg, VT).getValue(Op.ResNo); 8042bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8052bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8062bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 8072bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 8082bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 8092bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 810eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 811eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 812eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 813eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 8148782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8158782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 8168782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 817eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 8188782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8198782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 8208782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 8218782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 8228782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey MVT::ValueType VT = Node->getValueType(0); 8238782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8248782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 8258782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 8268782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 8278782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = DAG.getCopyFromReg(Tmp2, Reg, VT).getValue(Op.ResNo); 8288782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 8298782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8308782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 8318782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 8328782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 8338782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 834eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 835eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 836eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 837eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 8382bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8392bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8402bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 841eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 8422bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8436d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky case ISD::EH_RETURN: { 8442365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 8452365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // The only "good" option for this node is to custom lower it. 8462365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8472365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov default: assert(0 && "This action is not supported at all!"); 8482365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Custom: 8492365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 8502365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov if (Result.Val) break; 8512365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Fall Thru 8522365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Legal: 8532365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Target does not know, how to lower this, lower to noop 8542365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = LegalizeOp(Node->getOperand(0)); 8552365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 8562365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov } 8576d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky } 8582365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 85908951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 86008951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 86108951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 862c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 86308951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 864308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 865c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 866456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 867456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 86869a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 86969a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 8707310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 871f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 872c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 8737310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 874f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 875c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 876f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 877c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 878c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 879c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 880c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 8817310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 8827310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 88313c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 88413c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 88513c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 88613c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 88713c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 888fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 889fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 890fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 891ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 892ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 893fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 894fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 895fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 896fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstantFP(0, VT); 897fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 898fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 899fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 900ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 901fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 902fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 903fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 904fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 905d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 90648b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 90748b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 90848b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 909f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 910d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 911d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 912f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 91310d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 91410d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 91548b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 91610d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 91710d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 91810d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 91913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 92013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 92113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 92213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 92313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 92413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 92513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 92613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 92713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 92813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 92913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 93013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 93113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 932d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 93336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 93436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 93536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 93636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 93736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 93836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 93936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 94036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 941f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 94244c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 943abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 9441ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 945abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 94644c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 947abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 948e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 949abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 950e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 95144c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 952abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 953bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 954abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 955abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 956abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 957abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 958abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 959abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 960abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 961abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 962bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 963abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 964d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 965d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 96644c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned ID = MMI->RecordLabel(Line, Col, SrcFile); 967abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 9681ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey Result = DAG.getNode(ISD::LABEL, MVT::Other,&Ops[0],Ops.size()); 969abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 970e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 971e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 972e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 97336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 974e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 97536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 9769ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 9779ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 978f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 97936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 9809ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 9819ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 9829ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 9839ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 9849ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 9859ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 9869ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 9879ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 98836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 98936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 990f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 99136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 99236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 99336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 99436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 995f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 996f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 997abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 998f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 999f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 1000abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1001abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1002abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 1003abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 1004abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 1005c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 1006abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1007abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1008abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1009abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 10101ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 10111ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid LABEL node!"); 10121ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 1013abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 1014abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1015abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1016abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 1017c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1018f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 1019a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 1020a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 1021a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 1022f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 1023551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 102436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 1025c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 1026c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 1027c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 1028c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 1029c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 10303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 10313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 10323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1033c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 1034c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 1035c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (Tmp1.Val) 1036c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 1037c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 10383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1039c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 10403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 10413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 10423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 10433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 10443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 10453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 10463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 10473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 10483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 10493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 10503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 10513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 10523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 10533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 10543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 10553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 10563181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 10573181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 1058f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen Result = DAG.getTargetConstantFP(CFP->getValueAPF(), 1059f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CFP->getValueType(0)); 10603181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 10613181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 10623181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 10633181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 10643181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 10653181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 10663181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 10673181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 10683181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 10693181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 10703181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 10713181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 10723181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 1073279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 10743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 10753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 10763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1077040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1078040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1079c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1080c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1081c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1082c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1083c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1084c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1085c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1086c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1087040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1088f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1089040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1090c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1091c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1092f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1093a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1094a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1095fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1096fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1097f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1098fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1099b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1100b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 1101b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val->getNumValues() == Result.Val->getNumValues() && 1102b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1103e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1104f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1105e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1106b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 1107b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 1108e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 1109e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1110e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 1111e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1112e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1113557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1114557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1115557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1116557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1117557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1118557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1119557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1120557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1121557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1122557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1123557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1124557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1125557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1126557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp3 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1127557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1128557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1129557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1130b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1131b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 11322332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 11332332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 11342332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 11352332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 11362332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 11372332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11382332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 11392332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1140ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1141ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 1142b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 11432332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 11442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11452332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 11462332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 11472332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 11482332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 11492332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 11502332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 11512332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 11522332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 11532332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 11542332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 11552332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11562332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 11572332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 11582332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 11592332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 11602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 11622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 11632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 11648d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 11658d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 11668d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 11678d5a894501b7546dee94df03118b90126c420820Chris Lattner SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 11688d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1.getValueType(), Tmp2); 11698d5a894501b7546dee94df03118b90126c420820Chris Lattner 11708d5a894501b7546dee94df03118b90126c420820Chris Lattner unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 11718d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 117251eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType ShufMaskEltVT = MVT::getVectorElementType(ShufMaskVT); 11738d5a894501b7546dee94df03118b90126c420820Chris Lattner 11748d5a894501b7546dee94df03118b90126c420820Chris Lattner // We generate a shuffle of InVec and ScVec, so the shuffle mask should 11758d5a894501b7546dee94df03118b90126c420820Chris Lattner // be 0,1,2,3,4,5... with the appropriate element replaced with elt 0 of 11768d5a894501b7546dee94df03118b90126c420820Chris Lattner // the RHS. 1177bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> ShufOps; 11788d5a894501b7546dee94df03118b90126c420820Chris Lattner for (unsigned i = 0; i != NumElts; ++i) { 11798d5a894501b7546dee94df03118b90126c420820Chris Lattner if (i != InsertPos->getValue()) 11808d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 11818d5a894501b7546dee94df03118b90126c420820Chris Lattner else 11828d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 11838d5a894501b7546dee94df03118b90126c420820Chris Lattner } 1184bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 1185bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ShufOps[0], ShufOps.size()); 11868d5a894501b7546dee94df03118b90126c420820Chris Lattner 11878d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 11888d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1, ScVec, ShufMask); 11898d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = LegalizeOp(Result); 11908d5a894501b7546dee94df03118b90126c420820Chris Lattner break; 11918d5a894501b7546dee94df03118b90126c420820Chris Lattner } 11928d5a894501b7546dee94df03118b90126c420820Chris Lattner 11932332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 11942332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 11952332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 11962332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 11972332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 11982332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 1199f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 1200f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType EltVT = Tmp2.getValueType(); 1201f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 1202f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 1203f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr = CreateStackTemporary(VT); 1204eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 12058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, NULL, 0); 1206eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 1207eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 1208f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 1209f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 1210eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 1211f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 1212f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 1213f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 1214eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 12158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Ch = DAG.getStore(Ch, Tmp2, StackPtr2, NULL, 0); 1216eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 1217466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Ch, StackPtr, NULL, 0); 12182332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12192332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12202332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12212332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1222ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 12234352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 12244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 12254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 12264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 12274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1228ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1229ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1230ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1231ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1232ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1233ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1234ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 12354d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 12364d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 12374d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 12384d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 12394d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 12404d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 12414d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 12424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 12434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1244ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1245ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1246ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 124787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 124887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 124987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 125087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 125187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 125287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 12534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 12544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 12554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 12564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 12574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 12584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 12594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 126018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 126118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 126218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 126318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 126418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 126518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 126618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 126718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 126851eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 126918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 127018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 127118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1272bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 127318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 127418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 127518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 127618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 127718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 127818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 127918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 128018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 128118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 128218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 128318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 128418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 128518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 128618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 128718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1288bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 12894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 129018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 12914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 12924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 12934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 12944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 12954352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 12964352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 12974352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 12984352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 12994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 13004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 13014352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 13024352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 13034352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 13044352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 13054352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 13064352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 130787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 130887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1309384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1310384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 13117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1312384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1313384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 13147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1315384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1316384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 13177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 13187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 13197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 13207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 13217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 13226595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 13236595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 13246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 13256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 13266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 13286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 13296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 133000755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 13316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1332c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1333c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1334c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 13356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 13376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 13386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 13416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1342c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1343b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1344b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1345b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 13466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 13486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1349f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 13506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1351f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 13526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 13536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 13554b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 13564b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 13574b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 13584b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 13596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 13606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 13616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 13626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 13636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 13646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 13656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 13666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 13676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 13686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 13706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 13716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 13726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 13736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 137416cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 13756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 13766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 13776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 13786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 1379718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 13806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 13816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 13826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 13836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 13846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 13866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 13873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 138870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 138970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 139070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 139170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1392f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 139370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1394f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 139570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 139670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 139770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 139870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 139970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1400f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 140170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 140270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1403f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 140470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 14056a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 14064b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 14076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 14086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 14094b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 14104b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 14114b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 14124b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 14134b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 14144b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1415a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 141661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1417fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1418fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1419fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1420c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1421fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1422c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 14235f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 142461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1425a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1426903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1427903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1428903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1429903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1430903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 1431903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 143261bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, VT); 143361bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 143461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned Align = cast<ConstantSDNode>(Tmp3)->getValue(); 143561bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 143661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 143761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 14383e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 14393e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 144061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 144161bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp2 = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 1442c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1443c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1444903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1445903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1446903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 14475f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 14485f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1449c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1450c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1451a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1452903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1453a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1454903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1455a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1456903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1457903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1458c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1459c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1460903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1461a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 146225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1463f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 146425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 146525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 146625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 146725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 146825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 146925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 147025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 147125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 147225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 147325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 147425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 147525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 147625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 147725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 147825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 147925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 148025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 148125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 148225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 148325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 148425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 148525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 148625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 148725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 148825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1489ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 149025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1491f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1492ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1493ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1494c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1495ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1496ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 149725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1498c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1499c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 15016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 15026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 15036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 15046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1505c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1506c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 150737efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 150837efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 150937efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 151037efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 151137efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 151237efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 151337efe6764568a3829fee26aba532283131d1a104Nate Begeman 151437efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 151537efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 151637efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 151737efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 151837efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 151937efe6764568a3829fee26aba532283131d1a104Nate Begeman } 152037efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 152137efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 15223d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 15233d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15243d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 15253d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 15263d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 15273d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 15283d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 15293d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 15303d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 15313d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 15323d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 15333d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 15343d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 15353d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 15363d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 15373d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 15383d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 15393d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 15403d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 15413d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 15423d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 15433d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 15443d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1545acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1546acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 15473d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 15483d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1549acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1550acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1551acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1552acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 1553acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, NULL, 0); break; 1554acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, NULL, 0); break; 1555acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1556acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1557acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 15583d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 15593d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 15603d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // RelocBase is the JumpTable on PPC and X86, GOT on Alpha 15613d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Reloc; 15623d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (TLI.usesGlobalOffsetTable()) 15633d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, PTy); 15643d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng else 15653d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = Table; 1566d063189c0958536aae7ecebec5676541b2cdef9bEvan Cheng Addr = (PTy != MVT::i32) ? DAG.getNode(ISD::SIGN_EXTEND, PTy, LD) : LD; 15673d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, Reloc); 15683d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 15693d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } else { 15703d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), LD); 15713d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 15723d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 15733d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 15743d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1575c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1576c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 15786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 15796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 15806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 15816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 158247e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 158347e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 158447e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 158547e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 158647e9223e06390897c3834f8c527001df392570ffChris Lattner break; 158747e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 158847e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1589f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1590f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1591f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 1592ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 1593f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner MVT::getIntVTBitMask(Tmp2.getValueType())^1)) 1594f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 159547e9223e06390897c3834f8c527001df392570ffChris Lattner break; 159647e9223e06390897c3834f8c527001df392570ffChris Lattner } 1597456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1598456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1599c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 16007cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 16017cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 16027cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1603456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1604456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1605456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1606456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1607456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 16087cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 16097cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 16107cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 16117cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 16127cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 16137cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 16147cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 16157cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 16167cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 16177cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 16187cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 16197cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 16207cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 16217cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 16227cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 16237cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 16247cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 16257cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 16276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 16286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1629750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1630750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1631750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1632181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1633750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1634722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1635722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1636750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1637750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1638750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1639750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1640750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1641750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1642750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1643750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1644750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1645750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1646456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1647181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1648181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1649456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1650456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1651456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1652456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1653181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 16547cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1655c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1656f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1657466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1658466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1659466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 16602d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1661466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1662466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1663466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1664466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1665466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1666466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1667456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1668466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1669466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1670f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1671f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1672f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1673f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1674f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1675f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(LD->getLoadedVT())); 1676f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1677f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1678f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1679f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1680f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1681907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1682907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1683f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1684f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1685f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1686466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1687466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1688466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1689466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1690466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1691466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1692466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1693466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1694466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1695466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1696466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1697466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1698466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1699466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1700d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1701d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1702466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 170341f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1704466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1705f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1706466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1707466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1708466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1709466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1710466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1711466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1712466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 17132e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType SrcVT = LD->getLoadedVT(); 1714466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getLoadXAction(ExtType, SrcVT)) { 1715466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1716466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: 1717466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(SrcVT == MVT::i1 && 1718466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng "Can only promote extending LOAD from i1 -> i8!"); 1719466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1720466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValue(), LD->getSrcValueOffset(), 1721d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman MVT::i8, LD->isVolatile(), LD->getAlignment()); 1722c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1723c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1724c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1725466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1726466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng isCustom = true; 1727466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FALLTHROUGH 1728466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: 1729466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1730466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = Result.getValue(0); 1731466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = Result.getValue(1); 1732456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1733466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (isCustom) { 1734466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 1735466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp3.Val) { 1736466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Tmp3); 1737466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1738466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1739f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 1740f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1741f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1742f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1743f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1744f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(LD->getLoadedVT())); 1745f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1746f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1747f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1748f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp1 = Result.getOperand(0); 1749f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp2 = Result.getOperand(1); 1750907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp1 = LegalizeOp(Tmp1); 1751907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp2 = LegalizeOp(Tmp2); 1752f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1753f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1754456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1755466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1756466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Expand: 1757466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 1758466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 1759466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 1760d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1761d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1762466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1763466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1764466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Load.getValue(1)); 1765466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1766466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1767fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 1768466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Turn the unsupported load into an EXTLOAD followed by an explicit 1769466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // zero/sign extend inreg. 1770466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 1771466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1, Tmp2, LD->getSrcValue(), 1772d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), SrcVT, 1773d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1774466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand ValRes; 1775466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) 1776466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1777466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, DAG.getValueType(SrcVT)); 1778466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 1779466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1780466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1781466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1782c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 17839d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 1784466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 1785466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 1786466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1787466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1788466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 178901ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 179001ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 17915dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 17925dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 17935dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1794c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 17955dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 17965dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 17975dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 17985dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 17995dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 18005dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 18015dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 18025dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 18035dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 18045dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 18055dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 18065dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 18075dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 18085dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 18095dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 18105dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 18115dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 18125dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 18135dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 18145dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 18155dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 18165dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 18173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 18185dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 18193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 18203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 18213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1822edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1823c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1824d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 18257310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1826d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1827f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1828c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 18297310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1830f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1831c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1832f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1833c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1834c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1835c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1836c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 18377310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 18387310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 18397310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 18407310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1841c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 18427310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1843c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 18447310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 18453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 18463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 18473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 18483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 18506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 18516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 18536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 1854f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 18553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 18568e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 185798f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 18588e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 1859f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 18603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 18618e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 18623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1863f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 18647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(Tmp2.getValueType())) { 1865f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1866f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 1867edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 1868edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 1869edf2e8da256496c19390cfd46da80746373e9989Chris Lattner if (!TLI.isLittleEndian()) 1870edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 1871edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 187213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 187313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 187413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 187513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 1876f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 1877f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1878f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 18797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 18807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(0)); 1881f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 18827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 1883ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 1884f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 18857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 1886ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 18877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 18888e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1889f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 1890f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 18917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 18927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 18938e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1894b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1895b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 1896b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 1897b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1898f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 1899f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 1900f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1901f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1902b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 1903b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 1904f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1905f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 1906fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 1907f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1908f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1909f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1910edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 19113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 19128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 19138e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1914c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 19158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 19163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1919c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 19203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 1922f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 19233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 19248e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 19253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 19263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 19274e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 19288e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 19293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 19313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 19326595cb3000d7f5f8e9a76d556aa8609db91b7887Dan Gohman assert(!MVT::isExtendedVT(Node->getOperand(i).getValueType()) && 1933b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 19343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 19353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 19368e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 193713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 193813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 193913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 194013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 1941edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 19423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 19448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 19453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1946c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1947c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 1948f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 1949c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 1950f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 1951f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 19523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 195517c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 19566862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 19576862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 19586862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 19596862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 19606862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 19616862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 19626862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 19636862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 19646862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 196517c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 19663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1967f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 19688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 19698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 19708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 1971d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 1972d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 1973d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 19748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 19758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 1976d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 1977d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 1978d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 1979d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 1980d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 1981d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 19829e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // We generally can't do this one for long doubles. 19839e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (ConstantFPSDNode *CFP =dyn_cast<ConstantFPSDNode>(ST->getValue())) { 1984d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner if (CFP->getValueType(0) == MVT::f32) { 19859d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen Tmp3 = DAG.getConstant((uint32_t)CFP->getValueAPF(). 19869d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen convertToAPInt().getZExtValue(), 19873f6eb7419de437436265831fce92f62498556e08Dale Johannesen MVT::i32); 19889e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 19899e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 19909e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 19919e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (CFP->getValueType(0) == MVT::f64) { 19929d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen Tmp3 = DAG.getConstant(CFP->getValueAPF().convertToAPInt(). 19939d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen getZExtValue(), MVT::i64); 19949e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 19959e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 19969e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 1997d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1998d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1999d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 20008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (getTypeAction(ST->getStoredVT())) { 20018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 20028b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 20032efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 20048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 20058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 20068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 20078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 20088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2009f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2010f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2011f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2012f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2013f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2014f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(ST->getStoredVT())); 2015f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2016f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2017f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2018f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2019f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 20208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 20218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 20228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 20238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 20258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 20268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 20278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 20288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 2029d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 2030d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 20318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 20332efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 2034f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 20358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 20368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 20378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 20388b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2039d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, ST->getStoredVT(), 2040d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 20418b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 204203c8546ec57523970874917854a2fb77b1ff598eChris Lattner 20438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 20448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 20458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 2046c7029805ef35ce9805931067b841e6af11db382eChris Lattner 20478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 20488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 20498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 20507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (MVT::isVector(ST->getValue().getValueType())) { 20518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 20527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 20537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(0)); 20548b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 20557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2056ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 20578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 20587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2059ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 20607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = LegalizeOp(Node->getOperand(1)); 20618b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2062d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 20638b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 20648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 20668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 20677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = ScalarizeVectorOp(Node->getOperand(1)); 20688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2069d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 20708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 20718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 20728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 20738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 20758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SplitVectorOp(Node->getOperand(1), Lo, Hi); 20768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng IncrementSize = NumElems/2 * MVT::getSizeInBits(EVT)/8; 20778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2078c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 20798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ExpandOp(Node->getOperand(1), Lo, Hi); 20807b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 20818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 20828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!TLI.isLittleEndian()) 20838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2084c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2085c7029805ef35ce9805931067b841e6af11db382eChris Lattner 20868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2087d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 20887b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 20897b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 20907b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 20917b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 20927b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 20937b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 20947b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 20958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 20968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng getIntPtrConstant(IncrementSize)); 20978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 20988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2099d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2100d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman if (Alignment > IncrementSize) 2101d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment = IncrementSize; 21028b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2103d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 21048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 21058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 21068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 21078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 21088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncating store 21098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(ST->getValue().getValueType()) && 21108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Cannot handle illegal TRUNCSTORE yet!"); 21118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 21128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 21138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The only promote case we handle is TRUNCSTORE:i1 X into 21148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // -> TRUNCSTORE:i8 (and X, 1) 21158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (ST->getStoredVT() == MVT::i1 && 21168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getStoreXAction(MVT::i1) == TargetLowering::Promote) { 21178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Promote the bool to a mask then store. 21188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::AND, Tmp3.getValueType(), Tmp3, 21198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng DAG.getConstant(1, Tmp3.getValueType())); 21208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2121d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, MVT::i8, 2122d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 21238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 21248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 != ST->getBasePtr()) { 21258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 21268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 2127d9731af75b38f30c02f19d6e81333b9c2599ad5fChris Lattner } 2128c7029805ef35ce9805931067b841e6af11db382eChris Lattner 21298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType StVT = cast<StoreSDNode>(Result.Val)->getStoredVT(); 21308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getStoreXAction(StVT)) { 21318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2132f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2133f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2134f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2135f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2136f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2137f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(ST->getStoredVT())); 2138f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2139f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2140f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2141f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2142f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 21438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 21448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 21458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 21468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 21478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 21483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 21493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2150f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 215195762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 215295762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2153c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 215495762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2155140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2156140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2157c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2158c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2159c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2160456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2161140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2162140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2163456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2164456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2165c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2166c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 2167c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2168c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2169140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2170456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2171140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 21724f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 21734f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 21744f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2175c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 21764f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2177c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 21784f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2179c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2180c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 21814f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2182456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2183140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2184456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2185456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2186456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2187c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2188c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2189c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 2190456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2191140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2192140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2193140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2194c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2195140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2196140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2197140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2198456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2199456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2200456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2201456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2202140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2203140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 22044f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 22054f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 22064f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 22074f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 22084f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 22094f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 22104f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2211140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2212140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2213140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2214140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 221551b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 221651b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2217c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2218f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2219f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2220f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 22216a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 22226a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 22236a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 22246a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2225f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2226f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 22276a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 22286a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2229f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2230f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 223149c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 223249c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 223349c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 22346a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 22356a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2236c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2237f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 22382ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 223947e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 224047e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 224147e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 224247e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 224347e9223e06390897c3834f8c527001df392570ffChris Lattner break; 224447e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 224547e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2246b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 2247ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 2248b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner MVT::getIntVTBitMask(Tmp1.getValueType())^1)) 2249b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 225047e9223e06390897c3834f8c527001df392570ffChris Lattner break; 225147e9223e06390897c3834f8c527001df392570ffChris Lattner } 22523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 22532ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 225455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2255c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2256456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2257b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 225855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2259456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2260456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2261456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2262456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2263456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2264456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 22659373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 22669373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 22679373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 22689373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 22699373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 22709373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 22719373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 22729373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 22739373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 22749373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 227555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 227655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 227755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 227855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 227955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 228041f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 228141f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 228241f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 228341f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 2284456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2285456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 228655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2287456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2288456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 228955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 229055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 229155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 229255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 229355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 229455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 229555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 229655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 229755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 229855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 22993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2300750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2301750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2302750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 23039373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 23049373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2305750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 23069373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2307750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2308750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2309750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2310750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2311750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2312750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2313750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2314750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2315750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2316750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2317750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2318750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2319750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2320750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2321750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2322750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2323750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2324750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 23259373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 23269373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 23279373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2328750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 23293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2330750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2331750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2332750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2333750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2334750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2335750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2336750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2337750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2338750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2339750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 23403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2342b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 234373e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2344456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2345456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2346456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2347456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2348456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 23492b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2350456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 23512b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 23522b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2353456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2354b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2355ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2356ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2357ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2358ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2359ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 236000755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner MVT::ValueType OldVT = NewInTy; OldVT = OldVT; 2361ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2362ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2363ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2364ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2365ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2366ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2367ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2368ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2369ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2370ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2371ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 23721ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2373ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2374ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2375ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2376ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2377ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2378ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2379ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2380ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2381c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2382c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 23832b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2384433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 23855e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2386ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2387b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2388b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2389b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2390b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2391b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2392b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 23932b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2394b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2395b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 23963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2397e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 2398e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 2399e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 2400deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 2401e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 2402e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 2403e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 2404e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 2405e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 2406e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2407deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 2408e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2409e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2410deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 2411e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2412e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2413e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 2414edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 2415e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2416272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2417272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2418272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 24196814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 24206814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 24216814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 2422fa9aa2b424d0a7d9f7201f8fdcf5ccfa05db3a80Chris Lattner ExpandOp(Node->getOperand(3), Tmp4, HiPart); 24236814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 24246814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2425e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2426e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2427e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2428e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2429e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2430272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2431272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2432272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2433272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2434272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2435272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2436272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2437272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2438272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2439272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2440e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2441e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2442e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 244355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 244455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 244555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2446456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2447456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2448456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 244955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2450c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, Tmp5); 2451456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2452456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2453456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2454456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 245555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 245655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2457e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2458e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2459e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2460a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 246147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListTy Args; 246247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 2463e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 24643bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2465e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2466d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp2; Entry.Ty = IntPtrTy; 246747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2468dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2469dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2470dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2471dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2472dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2473dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2474d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp3; Entry.Ty = Type::Int32Ty; Entry.isSExt = true; 247547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2476d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp4; Entry.Ty = IntPtrTy; Entry.isSExt = false; 247747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2478e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2479e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2480e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2481e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2482b25fe8267182662750dcb76a70a20f4b14a5568dAnton Korobeynikov Entry.Ty = IntPtrTy; 2483b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp2; Args.push_back(Entry); 2484b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp3; Args.push_back(Entry); 2485b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp4; Args.push_back(Entry); 2486e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2487e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2488e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2489e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 249045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2491e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 249247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(Tmp1, Type::VoidTy, false, false, CallingConv::C, false, 2493e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2494456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 249555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 249655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2497e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2498e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2499e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 250052d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 25015b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 25025b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 25035b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2504f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 250584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 250684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 250784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 250884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 250984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2510c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2511f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 25122c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 251305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 251405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 251505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2516456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2517456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2518456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2519456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2520456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 252105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2522456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 252305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 252405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 252512f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 252605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2527269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 252805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 252905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 253005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 253105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 253205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 25332c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 25342c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 25352c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 25362c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 25372c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 253884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 25392c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 25402c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 25413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 25423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 25433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2544c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2545c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 25463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 25473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 25483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 25493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 25503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 255103c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 255203c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 255303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 255401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 255501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 255601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 255701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 25583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2559f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2560f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2561f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2562f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2563f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2564f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2565f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2566f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2567f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2568c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2569c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2570456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2571e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2572bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2573456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2574456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2575456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2576456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 257757030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2578bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 257952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (Node->getValueType(0) == MVT::i32) { 258052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng switch (Node->getOpcode()) { 258152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng default: assert(0 && "Do not know how to expand this integer BinOp!"); 258252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::UDIV: 258352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::SDIV: 258456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UDIV 258556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 258652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 258747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = Node->getOpcode() == ISD::SDIV; 258856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 258952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng }; 259052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 259152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 259252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 2593bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 2594bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 2595bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 2596bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 259751eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(Node->getValueType(0)); 2598bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 2599bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner for (unsigned i = 0, e = MVT::getVectorNumElements(Node->getValueType(0)); 2600bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner i != e; ++i) { 2601bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand Idx = DAG.getConstant(i, PtrVT); 2602bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand LHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, Idx); 2603bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand RHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, Idx); 2604bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner Ops.push_back(DAG.getNode(Node->getOpcode(), EltVT, LHS, RHS)); 2605bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2606bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, Node->getValueType(0), 2607bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 2608bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 2609bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2610cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 2611cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 2612cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 2613cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 2614cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 2615cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 2616cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 2617cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2618cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 2619cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 2620cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 2621cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 2622cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 2623cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 2624cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 2625cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 2626cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2627cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2628cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2629e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 26303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2631a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2632a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 2633a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2634a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 2635a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 2636a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 2637a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2638a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2639a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 2640a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2641a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2642a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2643a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2644a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2645a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2646a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2647a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 2648a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 2649a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2650a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 26518f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 2652a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 2653912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 2654636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 2655636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 2656636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 2657636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 2658636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 2659912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 2660636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 26618f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 26628f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 26638f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 26648f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 26658f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 26668f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 26678f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 26688f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 26698f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 26708f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 26718f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 26728f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 26738f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 26748f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 26758f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 26768f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 26778f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 26788f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 26798f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 2680912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType NVT = 2681912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 2682912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 2683912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 2684912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 2685a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2686a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2687912095becac923ff614d7b07728eb345ada67765Evan Cheng } 2688a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2689a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2690551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 2691551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 2692551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2693551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2694551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2695551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2696551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2697551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2698551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2699551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2700edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2701551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 2702551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 2703551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2704551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2705551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 2706551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2707551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2708551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2709551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2710551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2711551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2712551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 2713419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 2714419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 2715419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 2716419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 2717419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 2718419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 2719456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2720456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2721456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 2722419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 2723419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 2724419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 2725419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2726419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 2727419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 2728419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 2729419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 2730419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 2731419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 2732456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 2733419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2734419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2735419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2736419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2737419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 2738c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 2739c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 274001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2741c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2742c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2743456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2744c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2745456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 2746456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2747456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2748456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 274957030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 2750c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2751456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2752456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2753456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2754456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 275557030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 27564c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner case TargetLowering::Expand: 27576b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 275847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 27594c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner if (MVT::isInteger(Node->getValueType(0))) { 276052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (TLI.getOperationAction(DivOpc, Node->getValueType(0)) == 276152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 276252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 276352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng MVT::ValueType VT = Node->getValueType(0); 27646b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 276552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 276652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 276752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 276852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng assert(Node->getValueType(0) == MVT::i32 && 276952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 277056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 277156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 277252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 277356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 277452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 27754c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner } else { 27764c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner // Floating point mod -> fmod libcall. 277756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getValueType(0) == MVT::f32 277856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::REM_F32 : RTLIB::REM_F64; 27794c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner SDOperand Dummy; 278056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 278156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 2782c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2783c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2784c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2785c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2786acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 2787acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2788acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2789acc398c195a697795bff3245943d104eb19192b9Nate Begeman 27905c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2791acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 2792acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2793456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2794456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2795456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2796acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2797c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2798c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 2799456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 2800456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2801456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2802456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 2803456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 2804456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 2805456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 2806456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2807456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2808acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2809acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 2810466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 2811acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 2812466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 2813acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 2814acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 2815acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 2816acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 2817acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 28188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 28198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 2820acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 2821466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 2822456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 2823acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 2824acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2825acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2826acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2827acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 2828acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 2829acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 2830456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 2831456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 2832acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2833acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2834acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 2835acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2836acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 2837acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 2838acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2839acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 2840acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2841456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2842456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2843456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2844acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2845c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 2846c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 2847456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2848456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2849456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2850456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2851acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2852acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2853acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 2854acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 2855466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SVD = cast<SrcValueSDNode>(Node->getOperand(3)); 28568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SrcValueSDNode *SVS = cast<SrcValueSDNode>(Node->getOperand(4)); 2857466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, SVD->getValue(), 2858466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SVD->getOffset()); 28598b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, SVS->getValue(), 28608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SVS->getOffset()); 2861acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2862acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2863acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2864acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2865acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 2866acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2867acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2868acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2869acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 2870acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2871456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2872456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2873456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2874acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2875c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2876456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2877456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 2878456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2879456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2880acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2881acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2882acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 2883acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2884acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2885acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2886acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2887acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 2888acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2889acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2890acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2891c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2892c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2893acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 2894acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2895456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2896456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2897456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2898456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2899acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2900acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2901acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2902acc398c195a697795bff3245943d104eb19192b9Nate Begeman 290335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 290435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 290535ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 290635ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2907c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2908c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2909c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 2910c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 2911c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2912c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 2913c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2914c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 2915c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 2916c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 2917c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2918c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 2919c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 2920c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2921c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 2922c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 2923c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2924c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 292535ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 292635ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 2927d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2928d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2929d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2930456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2931456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 2932456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2933c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2934456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2935456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 2936456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 2937456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2938b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned DiffBits = MVT::getSizeInBits(NVT) - MVT::getSizeInBits(OVT); 2939456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2940456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2941456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2942456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2943456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 2944456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2945456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2946456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 2947456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 2948456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2949d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 2950d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2951d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 2952691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2953691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2954691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2955691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2956691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2957910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 2958691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 2959c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2960910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 2961335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 2962335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 2963335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel if (Tmp1.Val) { 2964335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 2965335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 2966910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 2967691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2968691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 2969691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 2970691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2971edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 2972edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 2973691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2974691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 2975691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 2976456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2977691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2978691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 2979691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2980691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2981691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 29827cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 2983b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 29847cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 298500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2986910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1); 2987691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2988691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2989456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 299000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 2991b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 2992b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(OVT), NVT)); 2993691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2994691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2995691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2996691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2997691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 2998456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 2999691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3000691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3001691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 300200b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 30032c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 30042c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 30052c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 3006da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3007da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3008da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 30092c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 30102c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3011456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3012456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 301359ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 301459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 30152c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 3016c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 301759ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 301859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 301959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 302059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 30212c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 30222c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 3023456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3024456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 3025456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 30262c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 30272c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 3028456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 3029f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3030f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 30314af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 30324af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 30334af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 30347cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 30354af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 30364af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 3037f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3038f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 3039f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 3040f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 3041f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 3042f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 304356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3044f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 304556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 304656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SQRT_F32 : RTLIB::SQRT_F64; 304756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 304856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 304956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 305056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 305156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 305256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::COS_F32 : RTLIB::COS_F64; 305356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 3054f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3055f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 30562ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 305756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 305856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 3059f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3060f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 30612c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 30622c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 30632c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 30642c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 30656ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 30666ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner // We always lower FPOWI into a libcall. No target support it yet. 306756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getValueType(0) == MVT::f32 306856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::POWI_F32 : RTLIB::POWI_F64; 30696ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 307056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 307156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 30726ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 30736ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 307435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 307567993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 307635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 30777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::isVector(Op.getOperand(0).getValueType())) { 30787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 30797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 30807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 30817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 30827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(0)); 30837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 30847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 30857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 30867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 30877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 308807a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 30897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 30907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 30917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 30927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 30937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 30947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 30957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 30967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 30977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 30987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 30997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 31007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 310167993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 310235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 310335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 310435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 310535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 310635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 310735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 310835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 310935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3110c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 311135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 311235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 311335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 311435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3115d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 31162c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3117fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3118fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3119fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 3120fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3121fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3122d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 3123fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 3124fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 3125456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3126456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3127456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3128456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3129456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3130c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3131456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3132456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3133456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3134456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3135456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3136fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 31376269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 31386269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 31396269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 3140456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3141fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 3142fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 3143fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 3144fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 3145fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 31465b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 3147fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3148fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3149fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 3150fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 3151fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3152fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3153c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3154fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 3155c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 3156c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 3157fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 3158c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 3159c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 3160fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3161c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3162c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 3163fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3164fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3165fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3166fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3167fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3168fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3169fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3170fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3171c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3172fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3173fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3174fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3175fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3176fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3177fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3178fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3179fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3180fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3181fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3182fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3183fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3184fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3185fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3186d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3187fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3188fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3189fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3190fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3191f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3192f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 31931618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 31941618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3195456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3196456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3197456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3198456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3199c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3200456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3201456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3202456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3203456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3204456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3205456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3206456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3207456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3208456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 32091618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3210d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3211d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 3212d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 3213d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 3214d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman unsigned ShiftAmt = MVT::getSizeInBits(Node->getValueType(0))-1; 3215d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getConstantFP((double)(1ULL << ShiftAmt), VT); 3216d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 3217d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3218d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3219d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 322001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3221d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3222d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3223d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 3224456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3225456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3226d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3227d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3228d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3229d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 32301618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3231fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 32326af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 32336af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng // Convert f32 / f64 to i32 / i64. 32346af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 323556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 32366af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 32376af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_SINT: 32386af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 323956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 324056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 32416af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 324256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 324356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 32446af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 32456af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_UINT: 32466af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 324756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 324856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 32496af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 325056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 325156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 32526af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 32536af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 32546af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 32556af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 325656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 325756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 32586af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 32596af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3260fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3261c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3262c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3263c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3264fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3265fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3266fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3267d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3268ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen case ISD::FP_EXTEND: 32695411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 32705411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MVT::ValueType newVT = Op.getValueType(); 32715411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MVT::ValueType oldVT = Op.getOperand(0).getValueType(); 32725411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen if (TLI.getConvertAction(oldVT, newVT) == TargetLowering::Expand) { 3273ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen // The only way we can lower this is to turn it into a STORE, 32745411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen // LOAD pair, targetting a temporary location (a stack slot). 32755411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen 32765411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen // NOTE: there is a choice here between constantly creating new stack 32775411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen // slots and always reusing the same one. We currently always create 32785411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen // new ones, as reuse may inhibit scheduling. 3279ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen MVT::ValueType slotVT = 3280ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen (Node->getOpcode() == ISD::FP_EXTEND) ? oldVT : newVT; 3281ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen const Type *Ty = MVT::getTypeForValueType(slotVT); 32825411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty); 32835411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 32845411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MachineFunction &MF = DAG.getMachineFunction(); 32855411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen int SSFI = 32865411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MF.getFrameInfo()->CreateStackObject(TySize, Align); 32875411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 3288ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen if (Node->getOpcode() == ISD::FP_EXTEND) { 3289ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), 3290ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen StackSlot, NULL, 0); 3291ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result = DAG.getExtLoad(ISD::EXTLOAD, newVT, 3292ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result, StackSlot, NULL, 0, oldVT); 3293ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen } else { 3294ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 3295ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen StackSlot, NULL, 0, newVT); 3296ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen Result = DAG.getLoad(newVT, Result, StackSlot, NULL, 0, newVT); 3297ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen } 32985411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen break; 32995411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 3300849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3301849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen // FALL THROUGH 330213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 33033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 33043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 33053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3306456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 33073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 33083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3309c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 33103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 331103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 331203c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 331313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3314c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3315c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 331613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 33171713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 33181713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 331913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 332023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 332123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 332203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 332303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 33241713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 332513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 33261713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 332715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 332815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 33291713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 333003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 33311713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 33321713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 33331713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 33341713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 33351713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 333603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 3337f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 3338f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 3339f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 334003c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 33413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 33423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 33430f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 334423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 33450f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 334615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 334745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 334845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 334945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 335055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 335155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 335255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3353c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 335455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 335555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 335645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 335723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 335845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 335945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 336045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 336145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 336227ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 336345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 336445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 336545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 336645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 336745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 33682d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 336945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 337045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 337145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 337245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 337345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 337445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 337544b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty); 3376d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 337745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 3378edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 337944b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner MF.getFrameInfo()->CreateStackObject(TySize, Align); 338045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 33818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 33828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StackSlot, NULL, 0, ExtraVT); 33835f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 3384466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, StackSlot, NULL, 0, ExtraVT); 338545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 338645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 338745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 338855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 338945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 33900f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 33913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 339236397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 339336397f50343639ce9a25996f2d790c656791ab92Duncan Sands SDOperand Ops[6]; 339436397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 339536397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 339636397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 339736397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 339836397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 339936397f50343639ce9a25996f2d790c656791ab92Duncan Sands assert(Result.Val && "Should always custom lower!"); 3400f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands 3401f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Since trampoline produces two values, make sure to remember that we 3402f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // legalized both of them. 3403f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Tmp1 = LegalizeOp(Result.getValue(1)); 3404f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Result = LegalizeOp(Result); 3405f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 0), Result); 3406f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3407f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands return Op.ResNo ? Tmp1 : Result; 340836397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 340945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 3410456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 34114ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 34124ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 34134ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 3414456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 3415456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3416456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 34173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 341845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 341945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 342045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 34213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 34223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 34233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 34248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 34258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 34268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 34278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 342803c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 342903c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 343071c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 343103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 343203c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 343303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 343403c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 343503c8546ec57523970874917854a2fb77b1ff598eChris Lattner 343603c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 343703c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 343803c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 343903c8546ec57523970874917854a2fb77b1ff598eChris Lattner 344040030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 34416fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 344245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 344303c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 3444d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 3445d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 344603c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 3447e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 344839833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 3449e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 345003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 345103c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 3452fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3453fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 3454fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 345503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 3456ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 3457ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 3458ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 3459ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 346003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 346103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 346203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 346303c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 346403c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 346503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3466ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 346782fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 3468c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 34697cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 34707cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 347182fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 3472fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 347303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 347403c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 347503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 347603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 347703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 347803c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 347903c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 348003c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 348103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3482e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 3483e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 3484e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 3485e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 3486e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 348703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 348879e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 348979e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 3490e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 349103c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 349203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 34938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 34948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 349513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 34968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 34978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 34988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 34998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 3500456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 35018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 35038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 35048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 35058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 35068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 3507595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 350815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 350913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 351023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 351123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 35128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 35148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 351535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 351635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 351735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 351835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 351935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 35208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 35218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 35228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 35238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 35248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 35258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 35268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 35278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 3528456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 352915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 35308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 35328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 35348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 35358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 35368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 35378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 353877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 3539456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 35408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 35428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 35438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 35448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 35458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 354615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 354715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 35488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 354923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 355023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 355177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 355277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 35538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 355577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 355677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 355777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 355877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 355915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 356015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 356177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 35628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 35638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 35655e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 35665e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 35675e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 35685e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 35695e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 35708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 35718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 35728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 35738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 35740b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 3575456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 35768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 35788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 35798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 35808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 35818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 3583d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 3584d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 3585d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 3586d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 3587d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 3588d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 3589c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 3590b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 3591b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 3592d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 3593d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3594d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3595d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 35968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 35978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 35982c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 35992c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 36002c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 36012c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 36022c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 36032c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 36042c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 36052c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 36062c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 36072c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 3608da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3609da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3610da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 3611da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3612da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 3613da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3614456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 361515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 361615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3617da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 3618da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 36198b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 36208b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 36218b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 36228b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 36238b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 36248b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 36258b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 36268b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 36278b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 36288b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 36298b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 36308b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 363103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 363203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 363303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 36340f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 36358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 36360f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 36370f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 363801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 36390f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 36400f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 36410f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 36420f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 36430f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 364401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 364501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 364601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 364701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 364801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 364901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 365001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 365101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 365201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 365301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 365401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 365501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 36568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 36578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 365801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 365915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 366015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 36610f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 36620f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 36638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 36648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 36658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 36668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 36678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 36688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 366915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 367015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 367115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 367215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 36738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 36748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 36758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 36768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 36778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 367815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 367915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 36808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 368101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 368201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3683a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 368401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 3685ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 3686ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3687ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3688ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3689ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3690ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = PromoteOp(Node->getOperand(0)); 3691ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3692ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3693ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3694ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 3695ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 3696ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3697ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3698ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3699ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3700ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = PromoteOp(Node->getOperand(1)); 3701ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3702ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3703ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3704ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 370501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 370601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 370701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 3708a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 370901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 371001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 371101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 37128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 37138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 37148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 37158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 37168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 37178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 37188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 371923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 372023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 37218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 37228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 37248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 37258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3726456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 37278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 37298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 37308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 373115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 373215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3733456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 37348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 37368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 37378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 373823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3739456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 37408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37410aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 37420aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 3743456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 3744456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 37450aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 37460aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 37470aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 37480aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 3749466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 37500aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 3751466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 37520aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 37530aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 37540aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 37550aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 37560aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 37578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 37588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 37590aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 3760466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 37610aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 37620aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 3763456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 37640aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 37650aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 3766466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 3767466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 376862f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 376962f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 377062f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 377162f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 377255b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 3773d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getLoadedVT(), 3774d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 3775d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 37764c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 3777456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 37784c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 3779466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 378003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 378103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 378203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 3783456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 378403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 37859373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 37869373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 37879373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 37889373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 3789456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 37909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 3791d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3792d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 3793d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3794d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3795d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3796b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3797b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), 3798d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 3799d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3800fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3801fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3802fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3803456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 3804456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 3805fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 3806fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3807456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 3808fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3809fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 3810fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3811fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3812456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 3813d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 3814b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 3815b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 381600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3817b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), NVT), Tmp1); 3818fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3819fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3820fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 382100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 3822b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3823b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), NVT)); 3824fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3825fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 3826fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 38277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 38287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 38296595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 38304aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 38314aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 38324aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 383303c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 383403c8546ec57523970874917854a2fb77b1ff598eChris Lattner 383503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 3836456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3837456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 3838456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 3839456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3840456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 384103c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 384203c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 384303c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 38443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 38457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 38467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 38477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 38487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 38497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 38501597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 38511597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 38521597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 38531597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 38547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Idx = Op.getOperand(1); 38551597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 38561597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDNode *InVal = Vec.Val; 38577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = InVal->getValueType(0); 38587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(TVT); 38591597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 38607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 38617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 38627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 38637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 38647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 38657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Tmp3 = TLI.LowerOperation(Op, DAG); 38667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 38677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 38687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 38697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 38707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 38717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 38727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 38737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 3874844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 38757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 38767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 38777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 38787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 38797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 38807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 38817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 38821597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 38837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 38847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 38857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 38861597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 38871597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 38881597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (CIdx->getValue() < NumElems/2) { 38891597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 38901597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 38911597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 38927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, 38937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 38941597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 38957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 38961597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 38971597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 38987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 38991597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 39007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 39017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 39027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand StackPtr = CreateStackTemporary(Vec.getValueType()); 39037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 39047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 39057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 39067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 39077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 39087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 39097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 39107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 39117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 39121597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 39137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 39141597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 39151597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 39167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 39176595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 39187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDOperand Op) { 39196595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 39206595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 39216595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 39226595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 39236595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 39247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(Vec.getValueType()); 39256595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 39266595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (NumElems == MVT::getVectorNumElements(Op.getValueType())) { 39276595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 39287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 39296595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 39306595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 39316595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 39326595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 39336595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 39346595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 39356595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 39366595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 39376595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 39386595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 39396595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 39406595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 39416595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 39426595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 39437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 39444aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 39454aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 3946750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 3947750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 3948750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 3949750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 3950750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 3951750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 3952750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 3953750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 3954750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 3955750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand Tmp1, Tmp2, Result; 3956750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3957750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 3958750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 3959750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 3960750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 3961750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3962750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 3963750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 3964750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 3965750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3966750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 3967750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 3968750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 3969750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 3970750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3971750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 3972750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 3973750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 3974750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 3975750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3976750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 3977750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3978750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3979750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 3980750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 3981750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 3982750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 3983750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 3984750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 3985750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 3986750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3987750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 3988750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3989750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3990750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3991750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3992750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3993750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 3994750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3995750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 3996750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3997750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3998750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3999750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4000750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 40012b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 40022b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 40032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 40042b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 400556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 40062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 40072b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 40082b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 400956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 40102b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40112b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 40122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 401356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 40142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40152b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 40162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 401756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 40182b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40192b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 40202b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 402156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 40222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 40242b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 402556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 40262b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40272b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 40282b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 402956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 40302b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40312b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 4032d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 4033d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 40342b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 40355efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 40362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40372b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 403856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 40392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 40402b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 40412b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 404256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 40432b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 40442b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 404556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 40462b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40472b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 404856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 40492b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40502b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 405156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 40522b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 40532b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 405456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 40552b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 405656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 405756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 405856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 40592b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 40602b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 40612b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 40622b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 40632b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 406456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Tmp1 = ExpandLibCall(TLI.getLibcallName(LC1), 406547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4066b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 40672b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4068d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 406956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 40702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), Tmp1, Tmp2, CC); 407156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LHS = ExpandLibCall(TLI.getLibcallName(LC2), 407247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4073b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 40742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHS, Tmp2, 4075d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 40762b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 40772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 40782b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 40792b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 40802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 40812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 40822b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 40832b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4084750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 4085750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 40862b49c500838666dd0186d021389d4dd70ffda240Evan Cheng ExpandOp(RHS, RHSLo, RHSHi); 4087750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4088750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4089750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4090750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4091750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4092750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4093750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4094750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4095750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4096750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4097750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4098750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4099750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4100750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4101750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4102750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4103750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4104750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4105750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4106750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4107750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4108750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4109750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 4110750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4111750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4112750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4113750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4114750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4115750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4116750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4117750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4118750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 41192e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 41202e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4121750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4122750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4123750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4124750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4125750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4126750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4127750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4128750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4129750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4130750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4131750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4132750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4133750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4134750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4135750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4136750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4137750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 41382e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 41392e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC, 41402e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng false, DagCombineInfo); 41412e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 41422e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 41432e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 41442e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 41452e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 41462e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi, CC); 41472e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 41482e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 41492e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 41502e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if ((Tmp1C && Tmp1C->getValue() == 0) || 41512e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 0 && 41522e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 41532e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 41542e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 1 && 41552e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 41562e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 41572e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 41582e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 41592e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 41602e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 41612e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 41622e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 41632e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 41642e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 41652e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 41662e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result=DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 41672e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 41682e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 41692e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 41702e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 41712e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4172750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4173750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 41742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4175750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4176750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4177750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4178750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 417935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 4180232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 4181232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 418235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 418335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 418435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 4185ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(DestVT); 418635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 418735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 41888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, NULL, 0); 418935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 4190466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 419135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 419235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 41934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 41944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 41954352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 41964352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand StackPtr = CreateStackTemporary(Node->getValueType(0)); 4197786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 41988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0); 4199466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, NULL, 0); 42004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 42014352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 42024352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4203ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 420407a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4205ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4206ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4207ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 420887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4209033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4210ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 421187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 4212033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 4213033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 42142eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 42152eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 42162eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 42172eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 42182eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4219033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4220033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 422189a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4222033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4223ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4224033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 422587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 42262eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 42272eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 42282eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 42292eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 42302eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 42312eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4232ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4233ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4234ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4235ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4236ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4237ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4238ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4239ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4240ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4241ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4242ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 42432eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4244ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 4245ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4246ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 4247ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 4248ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4249033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4250ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4251ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 4252f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CV.push_back(ConstantFP::get(OpNTy, V->getValueAPF())); 4253ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 4254ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 4255b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 4256ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4257ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 4258ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4259ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4260ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 42619d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 4262ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 4263466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 4264ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 42652eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 42662eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 42672eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 42682eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 42692eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 427051eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman SDOperand Zero = DAG.getConstant(0, MVT::getVectorElementType(MaskVT)); 42712eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 4272bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4273bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 4274033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 42752eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 42764352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 42772eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 42782eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 42792eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 42802eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 42812eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 42822eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 42832eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 42842eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 42852eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 42862eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 42872eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4288033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 4289033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 4290033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 4291033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 4292033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 4293033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 4294033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 4295033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 4296033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4297033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4298033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 4299033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 430051eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MaskVec[*II] = DAG.getConstant(i, MVT::getVectorElementType(MaskVT)); 4301033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 4302033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4303bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4304bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 4305033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4306033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 43074352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 43084352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 4309bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 4310033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4311033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4312033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4313033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 4314033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 4315033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4316033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 4317033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4318033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 4319bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 4320bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 4321033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4322033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4323ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4324ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 4325ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 4326ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 4327ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4328ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 4329ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(VT); 4330ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4331ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 4332bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 4333ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 4334ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 4335ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 4336ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 4337ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 4338ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 4339ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4340841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 4341ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4342ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 4343ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 4344ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4345786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 43468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 4347ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4348ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4349ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 4350ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 4351bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 4352bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 4353ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 4354ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 4355ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4356ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 4357466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 4358ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4359ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4360ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// CreateStackTemporary - Create a stack temporary, suitable for holding the 4361ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// specified value type. 4362ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::CreateStackTemporary(MVT::ValueType VT) { 4363ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo(); 4364ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned ByteSize = MVT::getSizeInBits(VT)/8; 436558092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *Ty = MVT::getTypeForValueType(VT); 4366d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned StackAlign = (unsigned)TLI.getTargetData()->getPrefTypeAlignment(Ty); 436758092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int FrameIdx = FrameInfo->CreateStackObject(ByteSize, StackAlign); 4368ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getFrameIndex(FrameIdx, TLI.getPointerTy()); 4369ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4370ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 43715b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 43725b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 43735b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 43745b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 43755b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 43765b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 43775b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4378bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 4379f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 4380f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 43815b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 43825b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 43835b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 43845b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4385e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 4386e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 4387e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 4388e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 4389e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 4390e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 4391e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 4392e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 4393f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4394e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 4395f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 4396f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 4397f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 4398f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 4399f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4400f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Handle the case when Amt is an immediate. Other cases are currently broken 4401f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // and are disabled. 4402f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 4403f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 4404f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 4405f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 4406f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 4407f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 4408f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 4409f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4410f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4411f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4412f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4413f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4414f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 4415ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4416ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 4417ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 4418f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4419f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 4420f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 4421f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 4422f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 4423f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4424f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4425f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 4426f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4427f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4428f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4429f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4430f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 4431f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4432ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4433ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4434ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 4435f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4436f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4437f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4438f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4439f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 4440f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4441f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4442f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 4443f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4444edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 4445f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4446f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4447edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 4448f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 4449edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4450f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4451ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4452ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4453edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4454ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 4455f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4456f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4457f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4458f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4459f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 4460f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4461f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4462f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4463f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 44640ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 44650ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 44660ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 44670ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner uint64_t Mask = NVTBits, KnownZero, KnownOne; 4468ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 44690ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 44700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is one, then we can do 44710ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 44720ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownOne & Mask) { 44730ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 44740ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 44750ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 44760ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 44770ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 44780ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 44790ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 44800ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 44810ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 44820ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 44830ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 44840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 44850ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 44860ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 44870ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 44880ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 44890ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 44900ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 44910ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 44920ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 44930ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 44940ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 44950ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 44960ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 44970ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is zero, then we can do 44980ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 44990ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownZero & Mask) { 45000ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 45010ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 45020ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 45030ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 45040ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 45050ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 45060ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 45070ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 45080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 45090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 45100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 45110ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 45120ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 45130ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 45140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 45150ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 45160ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 45170ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 45180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 45190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 45200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 45210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 45220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 45230ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 45240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 45250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 45260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 45270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 45280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 45290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 4530f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 4531e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 453277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 45339c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 453477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 453577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 453677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 453777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 453877e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 453947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 45406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 45416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 45426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 45436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 45446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 45456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 454677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 454747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 454877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 454977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 455077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 455147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 4552d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 455347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 455477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 455577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 4556edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 45570d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 455877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 45590d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 456047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(InChain, RetTy, isSigned, false, CallingConv::C, false, 4561adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 45620d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 45636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 45646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 45656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 45666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 456799c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 45680d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 456977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 457077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 4571456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 457299c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 457377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 457499c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 457599c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 457677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 457722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 457822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 457922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 458022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 45814c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 45824c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 458322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 458422cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 458522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 458622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 458722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 458822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 458922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 459022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 459122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 459222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 459322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 459422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 459522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 459622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 459722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 459822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 459922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 460022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 460122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 460222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 460322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 460422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 460522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 460622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 460722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 460822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 460922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 461022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 461147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 461222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 461322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 461422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 461522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 461622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 4617466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 4618118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen else if (MVT::getSizeInBits(DestTy) > MVT::getSizeInBits(MVT::f32)) 46194c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 4620118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, DestTy, DAG.getEntryNode(), 46219e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CPIdx, NULL, 0, MVT::f32); 46229e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else 46239e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Unexpected conversion"); 46249e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen 46254c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng MVT::ValueType SCVT = SignedConv.getValueType(); 46264c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 46274c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 46284c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 46294c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (MVT::getSizeInBits(SCVT) != MVT::getSizeInBits(DestTy)) { 46304c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(SCVT == MVT::i32 && DestTy == MVT::f64); 46314c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BUILD_PAIR, MVT::i64, 46324c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 46334c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 46344c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 46354c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 463622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 463722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 463822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 463922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 464022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 464122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 464222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 464322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 464422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 464522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 464622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 464722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 464822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 464922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 465022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 465122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 465222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 465322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 465422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 465522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 465622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 465722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 465822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 465922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 466056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 466122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 466256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F32; 466322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 466422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 466556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F64; 466622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 46676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 46684c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 46696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 46706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 467156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng return ExpandLibCall(TLI.getLibcallName(LC), Source.Val, isSigned, 467256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng UnusedHiPart); 467322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 467422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 467522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 467622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 467722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 467822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 467922cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 468022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 468122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 468222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 468322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 468422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 468558092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner // get the stack frame index of a 8 byte buffer, pessimistically aligned 468622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 468758092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *F64Type = MVT::getTypeForValueType(MVT::f64); 468858092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner unsigned StackAlign = 4689d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner (unsigned)TLI.getTargetData()->getPrefTypeAlignment(F64Type); 469058092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, StackAlign); 469122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 469222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 469322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 469422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 469522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 4696408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 4697408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 4698408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 4699408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 4700408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 470122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 470222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 470322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 470422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 470522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 470622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 470722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 470822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 470922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 471022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 4711786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 47128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 471322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 471422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 471522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 47168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 471722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 4718466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 471922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 472022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 472122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 472222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 472322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 472422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 472522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 472622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 472722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 472822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 472922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 473022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 473122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 4732118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) < MVT::getSizeInBits(MVT::f64)) { 4733118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_ROUND, DestVT, Sub); 4734118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) > MVT::getSizeInBits(MVT::f64)) { 4735118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, DestVT, Sub); 473622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 473722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 473822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 473922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 474022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 474122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 474222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 474322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 474422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 474522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 474622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 474722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 474822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 474922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 475022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 475122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 475222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 475322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 475422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 475522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 475622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 475722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 475822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 475922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 476022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 476147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 476222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 476322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 476422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 476522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 476622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 4767466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 476822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 476922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestVT == MVT::f64 && "Unexpected conversion"); 477022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, 477122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 4772466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng NULL, 0, MVT::f32)); 477322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 477422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 477522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 477622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 477722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 477822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 477922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 478022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 478122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 478222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 478322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 478422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 478522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 478622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 478722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 478822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 478922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 479022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 479122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 479222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 479322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 479422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 479522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 479622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 479722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 479822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 479922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 480022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 480122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 480222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 480322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 480422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 480522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 480622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 480722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 480822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 480922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 481022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 481122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 481222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 481322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 481422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 481522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 481622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 481722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 481822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 481922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 482022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 482122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 482222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 482322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 482422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 482522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 482622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 482722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 482822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 482922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 483022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 483177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 483277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 483322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 483422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 483522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 483622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 483722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 483822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 483922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 484022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 484122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 484222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 48439c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 484422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 4845e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 484622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 484722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 484822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 484922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 485066de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 485122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 485222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 485322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 485422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 485522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 485622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 485722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 485822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 485922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 486022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 486122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 486222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 4863e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 486422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 486522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 486622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 486722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 486822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 486922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 487022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 487122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 487222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 487322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 4874e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 487522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 48760d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 487722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 4878a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 4879a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 488022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Truncate the result of the 488122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // extended FP_TO_*INT operation to the desired size. 488222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, 488322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(OpToUse, NewOutTy, LegalOp)); 488422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 488513689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 488622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 488722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 488822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 488922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 489022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 489122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 489222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 489322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 489422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 489522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 489622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 489722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 489822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 489922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 490022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 490122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 490222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 490322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 490422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 490522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 490622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 490722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 490822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 490922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 491022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 491122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 491222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 491322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 491422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 491522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 491622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 491722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 491822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 491922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 492022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 492122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 492222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 492322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 492422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 492522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 492622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 492722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 492822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 492922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 49300d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 493177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 4932edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 493322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 493422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 493522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 493622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 493722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 493822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 493922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 494022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 494122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 494222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 494322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 494422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 494522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 4946b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 494722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 494822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 494922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 495022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 495122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 495222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 495322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 495422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 495522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 495622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 495722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 495822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 495922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 496022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 496122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 496222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 496322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 496422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 496522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 496622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 496722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 496822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 4969b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 497022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 497122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 497222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 497322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 497422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 497522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 497622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 497722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 497822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 497922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 498022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 498122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 498222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 498322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 498422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 498522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 498622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 498722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 498822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 498922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 499022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 4991b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), VT), 499222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 499322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 499422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 499522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 499622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 4997e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 49983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 49993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 50003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 50013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 50023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 50033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 50043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 500571c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 50063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 50073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 50081a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 50097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::isVector(VT)) && 50103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 50113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 50126fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 501340030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 50146fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 50156fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 50166fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 50176fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 50186fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 50193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 50203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 50213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 5022348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 5023348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 5024348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 5025e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 502639833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 5027e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 50283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 50293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 5030fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 5031aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 5032fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 5033fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 5034fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 50353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 50363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 50373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 50383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 50393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 50403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5041004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5042004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5043279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 50449f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 50459f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5046004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5047004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5048d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 50498137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 50508137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 50518137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5052d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 505358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 505458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 505558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 50564bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 50574bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 50584bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 50594bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 50604bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 506158f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 506258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 506358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 506458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5065d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5066d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5067d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5068d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5069d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5070d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5071d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5072d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5073d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5074edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5075edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 50769b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 50779b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 50789b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5079edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5080edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5081edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 508239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 508339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 50843becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 508539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 508639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 50877cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 50887cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 508939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 509039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 509139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 509239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 509339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 509439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 509539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 509639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 509739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 509839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 50993becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 510039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 510139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 51027cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 51037cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 510439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 510539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 510639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 510739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 510839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 510939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 511039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 5111edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 5112acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 51138137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 51148137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5115acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 5116acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 5117acc398c195a697795bff3245943d104eb19192b9Nate Begeman 5118acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 51198137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 5120acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 5121acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 5122acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 5123acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 5124acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 5125acc398c195a697795bff3245943d104eb19192b9Nate Begeman 51263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 5127466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 5128466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 5129466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 5130466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 5131d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 5132d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 5133d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 5134466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5135466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 5136d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5137d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5138004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 5139004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 5140004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 5141004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 51429f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 51439f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 51449f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5145004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5146004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5147466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5148466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 5149466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 5150466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 5151466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng getIntPtrConstant(IncrementSize)); 51527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 5153d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman if (Alignment > IncrementSize) 5154d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment = IncrementSize; 5155d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5156d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5157466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5158466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 5159466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 5160466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5161466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 5162466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5163466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5164466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5165466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (!TLI.isLittleEndian()) 5166466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 5167466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 51682e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType EVT = LD->getLoadedVT(); 5169548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 5170548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng if (VT == MVT::f64 && EVT == MVT::f32) { 5171548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 5172548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 5173d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5174548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 5175548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 5176548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 5177548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 5178548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 5179466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5180466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 5181466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 5182d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5183466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 5184466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 5185d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 5186d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 5187466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5188466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5189466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 5190466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5191466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 5192466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 5193466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 5194466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 5195466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 5196466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 5197466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 5198466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 5199466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 5200466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 5201466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 5202466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 5203466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 5204466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 52053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 52063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 52073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 52083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 52093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 52103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 52113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 52123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 52133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 52143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 52153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 52163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 52173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 5218456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 52193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 52203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 522119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 522219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 5223456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 522419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 522519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 52263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 52273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 52289373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 52299373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 52309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 52319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 523219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 523319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 52349373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 52359373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 523619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 523719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 523819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 52399373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 52409373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 52418137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 524213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 52438137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 524413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 524513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 524613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 52473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 52483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 52493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 52508137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 5251edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 52523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 52533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 52542dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 52558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 52568137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 52573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 52583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 52598137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 52603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 52613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 52628137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 5263edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 52643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 52653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 52663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 526735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 52684c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 52694c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 52704c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 52714c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 52724c948eb373779718e5be36d7674382b52114bf65Chris Lattner 52734c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 52744c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 52754c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 52764c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 52774c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 52784c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 52794c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 52804c948eb373779718e5be36d7674382b52114bf65Chris Lattner 528135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 5282f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 5283f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 5284f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 5285f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5286f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 5287f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 5288f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 5289f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5290f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 5291f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5292f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 52931a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 529413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 529513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 529619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 529719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 52987b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 52997b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 53007b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 53017b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 53027b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 53037b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 53047b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 53057b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 53061a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53071a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 53081a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 5309f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 5310f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 531113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Tmp = ExpandBIT_CONVERT(VT, Node->getOperand(0)); 5312f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 531335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 531435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 531535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 5316f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 53178137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::READCYCLECOUNTER: 5318308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 5319308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 5320308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 53218137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = TLI.LowerOperation(Op, DAG); 53228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner assert(Lo.Val && "Node must be custom expanded!"); 53238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Lo.getValue(1); 5324308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 53258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner LegalizeOp(Lo.getValue(2))); 5326f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 5327f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 53284e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 53294e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 533056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 533180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 5332f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 5333f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5334f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 53358137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 53368137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 5337f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 5338d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5339f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 5340f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 534180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 534280a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 534307dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 534407dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 534507dffd6af673c73352150583150b242a93694f00Chris Lattner break; 534607dffd6af673c73352150583150b242a93694f00Chris Lattner } 534780a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5348d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 534956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 53504e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 535156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F32_I64; 53524e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 535356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F64_I64; 535456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 535556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 53564e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 535756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 5358d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 535956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 536080a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 53618137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 53628137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 53638137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 53648137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 53658137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 53668137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 53678137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 53688137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 53698137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 53708137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 537107dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 537207dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 537307dffd6af673c73352150583150b242a93694f00Chris Lattner break; 537407dffd6af673c73352150583150b242a93694f00Chris Lattner } 537580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5376d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 537756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 53784e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 537956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F32_I64; 53804e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 538156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F64_I64; 538256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 538356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 53844e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 538556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 53864e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 538705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 538850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5389348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 539050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 53918137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 539250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 539350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 539450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 539550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 539650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 539750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 539850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 539950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 540050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 540179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 540279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 540379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 540479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 540579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 540679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 540779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 540879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 540979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 541079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 541179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 541279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 541379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 541479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 541579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 541679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 541779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 541879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 5419e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5420348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5421e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 54224759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 54234759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 542405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 542505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 542605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 542705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5428348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 54294759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 54304759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 54314759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5432e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 543356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SHL_I64), Node, 543456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*left shift=unsigned*/, Hi); 5435e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 543605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5437e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 543805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 543950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5440348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 544150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 54428137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 544350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 544450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 544550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 544650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 544750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 544850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 544950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 545050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 545150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5452e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5453348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5454e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 54554759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 54564759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 545705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 545805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 545905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 546005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5461348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 54624759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 54634759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 54644759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5465e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 546656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRA_I64), Node, 546756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng true/*ashr is signed*/, Hi); 5468e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 546905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 547005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 547105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 547250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5473348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 547450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 54758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 547650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 547750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 547850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 547950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 548050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 548150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 548250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 548350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 548450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5485e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5486348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5487e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 54884759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 54894759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 549005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 549105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 549205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 549305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5494348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 54954759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 54964759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 54974759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5498e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 549956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRL_I64), Node, 550056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*lshr is unsigned*/, Hi); 5501e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 550205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5503e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 5504edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 55058137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 55068137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 55078137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 55088137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 55098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 55108137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 55118137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 55128137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 55138137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 55148137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 55158137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 55168137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 55178137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 55188137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 55198137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 552079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 552179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 5522bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 5523bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 5524bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 5525bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 5526551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 552779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5528bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 552979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5530551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 553179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5532bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 553379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5534551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 553584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 55368137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 5537b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5538b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 5539b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 5540b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5541b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5542b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5543b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5544b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5545b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 5546b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5547b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5548b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 5549b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5550b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5551b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5552b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 5553b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5554b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5555b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5556b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5557b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5558b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5559b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5560b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5561b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 5562b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 5563b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5564b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5565b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5566b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5567b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5568b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 5569b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5570b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5571b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 5572b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5573b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 5574b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5575b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5576b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5577b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5578b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5579c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 55807d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 55817d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 55828829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 55838829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 55848829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 55857d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 55867d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 55877d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 55887d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 55893f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 55903f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 55913f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS || HasMULHU) { 5592c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 5593c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 5594c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 559556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman unsigned SH = MVT::getSizeInBits(RH.getValueType())-1; 55962cbba8934745fe30662f2d5a59d03545ad5212c5Nate Begeman // FIXME: Move this to the dag combiner. 559756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // MULHS implicitly sign extends its inputs. Check to see if ExpandOp 559856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // extended the sign bit of the low half through the upper half, and if so 559956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // emit a MULHS instead of the alternate sequence that is valid for any 560056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // i64 x i64 multiply. 56013f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS && 560256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is RH an extension of the sign bit of RL? 560356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOpcode() == ISD::SRA && RH.getOperand(0) == RL && 560456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOperand(1).getOpcode() == ISD::Constant && 560556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(RH.getOperand(1))->getValue() == SH && 560656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is LH an extension of the sign bit of LL? 560756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOpcode() == ISD::SRA && LH.getOperand(0) == LL && 560856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOperand(1).getOpcode() == ISD::Constant && 560956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(LH.getOperand(1))->getValue() == SH) { 5610a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5611a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5612a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 561356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 5614a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 56153f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng } else if (HasMULHU) { 5616a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5617a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5618a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner 5619a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 562056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 562156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 562256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 562356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 562456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 5625a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 562656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 5627c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 56283f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 562956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::MUL_I64), Node, 563056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 5631c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 5632c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 563356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 563456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SDIV_I64), Node, true, Hi); 563556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 563656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 563756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UDIV_I64), Node, true, Hi); 563856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 563956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 564056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SREM_I64), Node, true, Hi); 564156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 564256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 564356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UREM_I64), Node, true, Hi); 564456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 56455c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 56461a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 564756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 564856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::ADD_F32 : RTLIB::ADD_F64), 564956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 56501a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56511a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 565256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 565356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::SUB_F32 : RTLIB::SUB_F64), 565456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 56551a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56561a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 565756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 565856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::MUL_F32 : RTLIB::MUL_F64), 565956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 56601a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56611a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 566256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 566356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::DIV_F32 : RTLIB::DIV_F64), 566456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 56651a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56661a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 566756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi); 56681a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 56691a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 567056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPROUND_F64_F32),Node,true,Hi); 56711a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 5672c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio case ISD::FPOWI: 5673c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 5674c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio ? RTLIB::POWI_F32 : RTLIB::POWI_F64), 5675c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Node, false, Hi); 5676c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio break; 567798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 567898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 567998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 568056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 568198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 568256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 568356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SQRT_F32 : RTLIB::SQRT_F64; 568456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 568556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 568656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 568756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 568856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 568956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::COS_F32 : RTLIB::COS_F64; 569056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 569198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 569298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 569356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, false, Hi); 569498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 569598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 5696966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 5697966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5698966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 5699966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 5700966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5701966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5702966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 5703966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5704966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5705966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5706966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5707966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 5708966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5709966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 5710966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 5711966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5712966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5713966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 5714966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5715966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5716966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5717966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5718912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 5719912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 5720912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 5721912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 5722912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 5723912095becac923ff614d7b07728eb345ada67765Evan Cheng } 57247df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 57257df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 57267df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 57277df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng MVT::ValueType SrcVT = Node->getOperand(0).getValueType(); 572856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 57297df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) { 57307df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 573156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F32 : RTLIB::UINTTOFP_I64_F32; 57327df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 573356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F64 : RTLIB::UINTTOFP_I64_F64; 57347df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } else { 57357df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 573656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 57377df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 573856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 57397df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 57407df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 57417df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng // Promote the operand if needed. 57427df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (getTypeAction(SrcVT) == Promote) { 57437df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng SDOperand Tmp = PromoteOp(Node->getOperand(0)); 57447df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Tmp = isSigned 57457df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 57467df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng DAG.getValueType(SrcVT)) 57477df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng : DAG.getZeroExtendInReg(Tmp, SrcVT); 57487df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 57497df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 57504c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng 57514c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng const char *LibCall = TLI.getLibcallName(LC); 57524c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (LibCall) 57534c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Hi); 57544c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng else { 57554c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 57564c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Node->getOperand(0)); 57574c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 57584c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng ExpandOp(Lo, Lo, Hi); 57594c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 57607df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 57617df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 576298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 57633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 576483397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 576583397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 576683397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 576783397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 576813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 576913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 577013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 577183397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 577205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 577305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 577440030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 577505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 57763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 57773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 57797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 5780c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 5781c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 57827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && "Cannot split non-vector type!"); 5783c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 57847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElements = MVT::getVectorNumElements(Node->getValueType(0)); 5785c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 5786c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NewNumElts = NumElements/2; 57877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewEltVT = MVT::getVectorElementType(Node->getValueType(0)); 57887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorType(NewEltVT, NewNumElts); 5789c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5790c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 5791c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 5792c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 5793c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 5794c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 5795c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 5796c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 5797c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5798c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5799c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 5800e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 5801e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 580239833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 5803e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 5804e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 58057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 58067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 58077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 58087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 58097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 5810bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 5811bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_begin()+NewNumElts); 58127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT, &LoOps[0], LoOps.size()); 5813c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5814bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts, 58157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 58167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT, &HiOps[0], HiOps.size()); 5817c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5818c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 58197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 58207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 58217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 58227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 58237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 58247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 58257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 58267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 58277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT, &LoOps[0], LoOps.size()); 58286595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 58297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 58307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 58317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT, &HiOps[0], HiOps.size()); 58327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 58336595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 58346595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 58357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 58367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 58377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 58387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 58397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 58407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 58417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 58427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 58437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 58447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 58457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 58467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: { 5847c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 5848c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 5849c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 5850c7029805ef35ce9805931067b841e6af11db382eChris Lattner 58517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(Node->getOpcode(), NewVT, LL, RL); 58527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(Node->getOpcode(), NewVT, LH, RH); 5853c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5854c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 58557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 58567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 58577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LD->getChain(); 58587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LD->getBasePtr(); 58597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 58607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 58617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 58627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 58637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 58647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 58657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned IncrementSize = NewNumElts * MVT::getSizeInBits(NewEltVT)/8; 5866c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 5867c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 58687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 58697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Alignment > IncrementSize) 58707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Alignment = IncrementSize; 58717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 5872c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5873c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 5874c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 5875c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5876c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 5877c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5878c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5879c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5880c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5881c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 58827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 58837692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 58847692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 588510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand InOp = Node->getOperand(0); 588610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman if (!MVT::isVector(InOp.getValueType()) || 588710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman MVT::getVectorNumElements(InOp.getValueType()) == 1) { 588810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 588910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 589010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 589110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand Ptr = CreateStackTemporary(InOp.getValueType()); 58927692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 5893786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 589410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman InOp, Ptr, NULL, 0); 589510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, NULL, 0); 58967692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 589710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 589810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 589910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT, Lo); 590010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT, Hi); 590110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 59027692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 5903c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5904c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5905c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 590640030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 5907c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 590810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 5909c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5910c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5911c7029805ef35ce9805931067b841e6af11db382eChris Lattner 591289b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 591389b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 591489b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 59157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) { 59167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && 59177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "Bad ScalarizeVectorOp invocation!"); 5918c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 59197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorElementType(Op.getValueType()); 59207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::getVectorNumElements(Op.getValueType()) == 1); 5921c7029805ef35ce9805931067b841e6af11db382eChris Lattner 59227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 59237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand>::iterator I = ScalarizedNodes.find(Op); 59247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 5925c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5926c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 5927c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 59282332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 5929e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 593039833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 5931e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 59327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 59337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 59347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 59357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 59367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 59377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 59387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 59397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 59407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 59417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 59427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 59437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 59447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 59457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 59467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 59477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 59487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 5949c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 59507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 59517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 5952c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 59537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 59547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 59557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 59567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 59577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 59587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 59597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 59607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 59617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 59627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 59637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 59647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 59657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 5966c7029805ef35ce9805931067b841e6af11db382eChris Lattner 59677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 59687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 59697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, 59707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LD->isVolatile(), LD->getAlignment()); 59717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 5972c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5973c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 5974c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5975c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 59767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 59777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 59787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 59797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 59807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 59817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 5982c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 59837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 59846595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 59856595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 59866595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 59876595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 59887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 59897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 59907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand EltNum = Node->getOperand(2).getOperand(0); 59917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 59927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 59937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 59947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 59952332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 59967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 59977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 59987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 59996595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 60006595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 60017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: 60027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 6003db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 60047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 6005b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 60067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 60077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 6008b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 6009c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6010c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6011c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 6012c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 60137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 60147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 6015c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 6016c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 6017c7029805ef35ce9805931067b841e6af11db382eChris Lattner 60183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 60193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 60203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 60219c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 60225e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 60235e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 60243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 60253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 6026456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 60273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 60283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6029