LegalizeDAG.cpp revision 89b20c07e9f9539b141c5251ac67cc38afa637d5
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" 183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Target/TargetLowering.h" 19e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner#include "llvm/Target/TargetData.h" 203d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng#include "llvm/Target/TargetMachine.h" 210f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner#include "llvm/Target/TargetOptions.h" 22adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 24c10305743c313558405079452138f03124e87581Reid Spencer#include "llvm/DerivedTypes.h" 255e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/MathExtras.h" 265e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 27a4f0b3a084d120cfc5b5bb06f64b222f5cb72740Chris Lattner#include "llvm/Support/Compiler.h" 287971514755a08ec156a1b9c0f7f05d67919c56b7Chris Lattner#include "llvm/ADT/DenseMap.h" 29f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner#include "llvm/ADT/SmallVector.h" 3000755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner#include "llvm/ADT/SmallPtrSet.h" 31033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng#include <map> 323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 345e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#ifndef NDEBUG 355e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic cl::opt<bool> 365e46a19ec848cd4fc9649bd5170c43d9e657668cChris LattnerViewLegalizeDAGs("view-legalize-dags", cl::Hidden, 375e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner cl::desc("Pop up a window to show dags before legalize")); 385e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#else 395e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic const bool ViewLegalizeDAGs = 0; 405e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#endif 415e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 42718071c476014cb0aaff9c7d018120d5a8930217Chris Lattnernamespace llvm { 43718071c476014cb0aaff9c7d018120d5a8930217Chris Lattnertemplate<> 44718071c476014cb0aaff9c7d018120d5a8930217Chris Lattnerstruct DenseMapKeyInfo<SDOperand> { 45718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner static inline SDOperand getEmptyKey() { return SDOperand((SDNode*)-1, -1U); } 46718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner static inline SDOperand getTombstoneKey() { return SDOperand((SDNode*)-1, 0);} 47718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner static unsigned getHashValue(const SDOperand &Val) { 48718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner return DenseMapKeyInfo<void*>::getHashValue(Val.Val) + Val.ResNo; 49718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner } 50718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner static bool isPod() { return true; } 51718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner}; 52718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner} 53718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 67360e8200ec544a3c877ff74b48f445140ac9bbd6Chris Lattnerclass VISIBILITY_HIDDEN SelectionDAGLegalize { 683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand LastCALLSEQ_END; 776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 8468a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 8568a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 86d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 9268a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 97718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand> LegalizedNodes; 983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 9903c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 10003c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 10103c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 10240030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand> PromotedNodes; 10303c8546ec57523970874917854a2fb77b1ff598eChris Lattner 104c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 105c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 106c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 10740030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes; 1083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 109c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 110c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 111c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 112c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes; 113c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// ScalarizedNodes - For nodes that need to be converted from vector types to 1157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// scalar types, this contains the mapping of ones we have already 116c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 1177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand> ScalarizedNodes; 118c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1198afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner void AddLegalizedOperand(SDOperand From, SDOperand To) { 12069a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 12169a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 12269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 12369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 1248afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 12503c8546ec57523970874917854a2fb77b1ff598eChris Lattner void AddPromotedOperand(SDOperand From, SDOperand To) { 12640030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = PromotedNodes.insert(std::make_pair(From, To)); 12703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 12869a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 12969a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 13003c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1318afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1349c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner SelectionDAGLegalize(SelectionDAG &DAG); 1353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 1393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizeAction getTypeAction(MVT::ValueType VT) const { 14068a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 1453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isTypeLegal(MVT::ValueType VT) const { 1463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 151456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 1527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// HandleOp - Legalize, Promote, or Expand the specified operand as 153c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 154c7029805ef35ce9805931067b841e6af11db382eChris Lattner void HandleOp(SDOperand Op); 155c7029805ef35ce9805931067b841e6af11db382eChris Lattner 156c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 157c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 158c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 1593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LegalizeOp(SDOperand O); 160c7029805ef35ce9805931067b841e6af11db382eChris Lattner 161c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 162c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 163c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 164c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 165c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 16603c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 170c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 171c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 172c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 173c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 174c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 175c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// SplitVectorOp - Given an operand of vector type, break it down into 1777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// two smaller values. 178c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 179c7029805ef35ce9805931067b841e6af11db382eChris Lattner 18089b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// ScalarizeVectorOp - Given an operand of single-element vector type 18189b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// (e.g. v1f32), convert it into the equivalent operation that returns a 18289b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// scalar (e.g. f32) value. 1837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ScalarizeVectorOp(SDOperand O); 184c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1884352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 1944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDNode *isShuffleLegal(MVT::ValueType VT, SDOperand Mask) const; 1954352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 196c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 19700755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 1986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 199750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 200750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 201ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CreateStackTemporary(MVT::ValueType VT); 202ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 20347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer SDOperand ExpandLibCall(const char *Name, SDNode *Node, bool isSigned, 20477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 20577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 20677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 207cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 20835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand ExpandBIT_CONVERT(MVT::ValueType DestVT, SDOperand SrcOp); 209ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 2104352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 2116269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 2126269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 2136269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 2145a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 2155a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 2161618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 2171618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 21800b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 219456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 220456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 221e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 222e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2235b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2245b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 225b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ExpandEXTRACT_SUBVECTOR(SDOperand Op); 2274aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2281597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 2293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand getIntPtrConstant(uint64_t Val) { 2303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return DAG.getConstant(Val, TLI.getPointerTy()); 2313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDNode *SelectionDAGLegalize::isShuffleLegal(MVT::ValueType VT, 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand Mask) const { 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 2514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::getVectorNumElements(NVT) / MVT::getVectorNumElements(VT); 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 259bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 271bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2724352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2734352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2744352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2754352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2764352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2774352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2784352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2794352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2809c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2819c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2829c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2836a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 287e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// ComputeTopDownOrdering - Compute a top-down ordering of the dag, where Order 288e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// contains all of a nodes operands before it contains the node. 289e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattnerstatic void ComputeTopDownOrdering(SelectionDAG &DAG, 290e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SmallVector<SDNode*, 64> &Order) { 291e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 292e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner DenseMap<SDNode*, unsigned> Visited; 293e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner std::vector<SDNode*> Worklist; 294e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.reserve(128); 29532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 296e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 297e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // entry node) that have no operands. 298e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 299e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner E = DAG.allnodes_end(); I != E; ++I) { 300e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (I->getNumOperands() == 0) { 301e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Visited[I] = 0 - 1U; 302e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(I); 303e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 30432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 30532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 306e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner while (!Worklist.empty()) { 307e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SDNode *N = Worklist.back(); 308e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.pop_back(); 309e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 310e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (++Visited[N] != N->getNumOperands()) 311e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner continue; // Haven't visited all operands yet 312e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 313e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.push_back(N); 314e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 315e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Now that we have N in, add anything that uses it if all of their operands 316e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // are now done. 317e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); 318e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner UI != E; ++UI) 319e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(*UI); 320e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 321e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 322e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner assert(Order.size() == Visited.size() && 323e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.size() == 324e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 325e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner "Error: DAG is cyclic!"); 32632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 32732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3281618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 333ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 334ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 335ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 336ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 33732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 33832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 3390ed44170752b85c3dd3bbf95459dd2668864f5ecChris Lattner SmallVector<SDNode*, 64> Order; 340e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner ComputeTopDownOrdering(DAG, Order); 341ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 342c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 343c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 34432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 34532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 34732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 34832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 35271c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 353c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 3547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizedNodes.clear(); 3553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 357190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 4046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 4056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 4066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 4086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 4096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 4106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 415c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 416c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 417c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 418c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 419c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 42000755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 4216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 423c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 424c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 425c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 426c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 446c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 448c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 449c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 450c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 451c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 45480edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// HandleOp - Legalize, Promote, or Expand the specified operand as 459c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 460c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 4617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType VT = Op.getValueType(); 4627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (getTypeAction(VT)) { 463c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 4647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Legal: (void)LegalizeOp(Op); break; 4657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Promote: (void)PromoteOp(Op); break; 466c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 4677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(VT)) { 4687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal scalar, expand it into its two component 4697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // pieces. 470c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 471c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 4727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::getVectorNumElements(VT) == 1) { 4737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal single element vector, convert it to a 4747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // scalar operation. 4757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman (void)ScalarizeVectorOp(Op); 476c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Otherwise, this is an illegal multiple element vector. 4787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Split it in half and legalize both parts. 4797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand X, Y; 4807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SplitVectorOp(Op, X, Y); 481c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 482c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 483c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 484c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4869f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 4879f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 4889f87788040786b1bc6530763e4cf7e105bfb2924Evan Chengstatic SDOperand ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 489279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 490004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 491004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 492004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 493004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 494004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 495004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // double. 496004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng MVT::ValueType VT = CFP->getValueType(0); 497004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool isDouble = VT == MVT::f64; 498004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFP *LLVMC = ConstantFP::get(isDouble ? Type::DoubleTy : 499004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Type::FloatTy, CFP->getValue()); 5009f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 501279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng double Val = LLVMC->getValue(); 502279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng return isDouble 503279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng ? DAG.getConstant(DoubleToBits(Val), MVT::i64) 504279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng : DAG.getConstant(FloatToBits(Val), MVT::i32); 505279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 506279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 507004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (isDouble && CFP->isExactlyValue((float)CFP->getValue()) && 508004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Only do this if the target has a native EXTLOAD instruction from f32. 509004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, MVT::f32)) { 510004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC,Type::FloatTy)); 511004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng VT = MVT::f32; 512004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Extend = true; 513004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 514004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 515004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 516004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (Extend) { 517004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 518004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng CPIdx, NULL, 0, MVT::f32); 519004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } else { 520004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 521004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 522004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 523004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 525912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 526912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 527912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 528912095becac923ff614d7b07728eb345ada67765Evan ChengSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT::ValueType NVT, 529912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 530068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng MVT::ValueType VT = Node->getValueType(0); 531912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcVT = Node->getOperand(1).getValueType(); 5327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 5337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 534912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 535068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 536912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 537068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 538912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 539912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 540068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 541912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 542068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 543912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 544912095becac923ff614d7b07728eb345ada67765Evan Cheng int SizeDiff = MVT::getSizeInBits(SrcNVT) - MVT::getSizeInBits(NVT); 545912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 546912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 547912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 548912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 549912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 550912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 551068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 552068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 553068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 554068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 555068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 556068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 557912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 558068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 559068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 560068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 561912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 562912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 563912095becac923ff614d7b07728eb345ada67765Evan Cheng} 564912095becac923ff614d7b07728eb345ada67765Evan Cheng 565912095becac923ff614d7b07728eb345ada67765Evan Cheng 566c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// LegalizeOp - We know that the specified value has a legal type. 567c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// Recursively ensure that the operands have legal types, then return the 568c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// result. 5693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 570c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 571e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 57245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 573e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 5743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 575e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 57645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 57745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 578c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 579c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 5803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 581c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 58203c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 5833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 58645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 58745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 588718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 589e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 5903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 5919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 5923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 593456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 594456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 5953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 596948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 597948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 598948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 599948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 600948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 60137efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 602948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 6033181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 604948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 605948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 606b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 607948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 608948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 609948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 610948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 611948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 612948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 613948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner assert(TLI.isOperationLegal(Node->getValueType(0), Node->getValueType(0)) && 614948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 615948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 6163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 617d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 618d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 619d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 620f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 621c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 622d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 623c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 624f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 625d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 626d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 627d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 628d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 629d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 630d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 631e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 63239833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 633e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 6353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 6360d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 6373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 638b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 63903c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 64037efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 64137efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 6420c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 6430c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 644948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 645948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 646948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 647948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 6480c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 6490c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 6500c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 6513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 652bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 653bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 654bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 655bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 656bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 657bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 658bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 659bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 660bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 661bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 6622bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 6632bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 6642bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey MVT::ValueType VT = Node->getValueType(0); 6652bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 6662bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 6672bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 6688782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 6692bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = DAG.getCopyFromReg(Tmp1, Reg, VT).getValue(Op.ResNo); 6702bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 6712bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 6722bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 6732bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 6742bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 6752bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 676eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 677eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 678eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 679eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 6808782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 6818782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 6828782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 683eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 6848782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 6858782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 6868782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 6878782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 6888782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey MVT::ValueType VT = Node->getValueType(0); 6898782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 6908782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 6918782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 6928782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 6938782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = DAG.getCopyFromReg(Tmp2, Reg, VT).getValue(Op.ResNo); 6948782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 6958782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 6968782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 6978782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 6988782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 6998782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 700eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 701eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 702eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 703eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 7042bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 7052bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 7062bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 707eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 7082bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 70908951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 71008951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 71108951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 712c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 71308951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 714308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 715c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 716456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 717456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 71869a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 71969a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 7207310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 721f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 722c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 7237310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 724f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 725c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 726f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 727c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 728c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 729c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 730c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 7317310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 7327310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 73313c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 73413c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 73513c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 73613c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 73713c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 738fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 739fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 740fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 741ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 742ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 743fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 744fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 745fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 746fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstantFP(0, VT); 747fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 748fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 749fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 750ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 751fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 752fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 753fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 754fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 755d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 75648b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 75748b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 75848b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 759f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 760d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 761d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 762f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 76310d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 76410d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 76548b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 76610d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 76710d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 76810d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 76913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 77013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 77113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 77213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 77313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 77413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 77513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 77613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 77713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 77813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 77913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 78013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 78113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 782d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 78336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 78436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 78536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 78636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 78736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 78836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 78936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 79036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 791f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 79244c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 793abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 7941ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 795abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 79644c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 797abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 798e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 799abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 800e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 80144c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 802abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 803bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 804abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 805abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 806abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 807abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 808abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 809abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 810abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 811abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 812bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 813abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 814d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 815d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 81644c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned ID = MMI->RecordLabel(Line, Col, SrcFile); 817abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 8181ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey Result = DAG.getNode(ISD::LABEL, MVT::Other,&Ops[0],Ops.size()); 819abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 820e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 821e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 822e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 82336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 824e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 82536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 8269ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 8279ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 828f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 82936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 8309ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 8319ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 8329ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 8339ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 8349ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 8359ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 8369ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 8379ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 83836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 83936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 840f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 84136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 84236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 84336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 84436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 845f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 846f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 847abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 848f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 849f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 850abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 851abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 852abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 853abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 854abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 855c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 856abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 857abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 858abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 859abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 8601ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 8611ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid LABEL node!"); 8621ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 863abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 864abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 865abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 866abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 867c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 868f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 869a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 870a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 871a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 872f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 873551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 87436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 8753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: 8763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 8773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 8783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // FIXME: Maybe we should handle things like targets that don't support full 8803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // 32-bit immediates? 8813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 8823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 8833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 8843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 8853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 8863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 8873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 8883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 8903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 8913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 8923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 8933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 8943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 8953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 8963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 8973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8983181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 8993181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 9003181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = DAG.getTargetConstantFP(CFP->getValue(), CFP->getValueType(0)); 9013181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 9023181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 9033181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 9043181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 9053181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 9063181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 9073181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 9083181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 9093181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 9103181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 9113181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 9123181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 9133181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 914279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 9153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 9163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 9173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 918040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 919040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 920c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 921c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 922c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 923c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 924c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 925c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 926c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 927c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 928040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 929f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 930040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 931c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 932c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 933f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 934a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 935a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 936fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 937fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 938f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 939fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 940b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 941b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 942b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val->getNumValues() == Result.Val->getNumValues() && 943b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 944e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 945f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 946e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 947b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 948b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 949e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 950e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 951e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 952e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 953e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 954fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 955b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 956b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 9572332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 9582332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 9592332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 9602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 9612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 9622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 9632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9642332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 965ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 966ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 967b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 9682332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9692332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 9702332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 9712332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 9722332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 9732332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 9742332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 9752332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 9762332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 9772332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 9782332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 9792332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 9802332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 9812332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 9822332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 9832332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 9842332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 9852332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 9862332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9872332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 9882332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 9898d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 9908d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 9918d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 9928d5a894501b7546dee94df03118b90126c420820Chris Lattner SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 9938d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1.getValueType(), Tmp2); 9948d5a894501b7546dee94df03118b90126c420820Chris Lattner 9958d5a894501b7546dee94df03118b90126c420820Chris Lattner unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 9968d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 99751eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType ShufMaskEltVT = MVT::getVectorElementType(ShufMaskVT); 9988d5a894501b7546dee94df03118b90126c420820Chris Lattner 9998d5a894501b7546dee94df03118b90126c420820Chris Lattner // We generate a shuffle of InVec and ScVec, so the shuffle mask should 10008d5a894501b7546dee94df03118b90126c420820Chris Lattner // be 0,1,2,3,4,5... with the appropriate element replaced with elt 0 of 10018d5a894501b7546dee94df03118b90126c420820Chris Lattner // the RHS. 1002bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> ShufOps; 10038d5a894501b7546dee94df03118b90126c420820Chris Lattner for (unsigned i = 0; i != NumElts; ++i) { 10048d5a894501b7546dee94df03118b90126c420820Chris Lattner if (i != InsertPos->getValue()) 10058d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 10068d5a894501b7546dee94df03118b90126c420820Chris Lattner else 10078d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 10088d5a894501b7546dee94df03118b90126c420820Chris Lattner } 1009bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 1010bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ShufOps[0], ShufOps.size()); 10118d5a894501b7546dee94df03118b90126c420820Chris Lattner 10128d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 10138d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1, ScVec, ShufMask); 10148d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = LegalizeOp(Result); 10158d5a894501b7546dee94df03118b90126c420820Chris Lattner break; 10168d5a894501b7546dee94df03118b90126c420820Chris Lattner } 10178d5a894501b7546dee94df03118b90126c420820Chris Lattner 10182332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 10192332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 10202332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 10212332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 10222332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 10232332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 1024f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 1025f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType EltVT = Tmp2.getValueType(); 1026f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 1027f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 1028f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr = CreateStackTemporary(VT); 1029eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 10308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, NULL, 0); 1031eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 1032eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 1033f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 1034f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 1035eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 1036f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 1037f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 1038f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 1039eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 10408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Ch = DAG.getStore(Ch, Tmp2, StackPtr2, NULL, 0); 1041eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 1042466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Ch, StackPtr, NULL, 0); 10432332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 10442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 10452332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 10462332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1047ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 10484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 10494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 10504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 10514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 10524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1053ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1054ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1055ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1056ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1057ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1058ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1059ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 10604d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 10614d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 10624d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 10634d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 10644d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 10654d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 10664d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 10674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 10684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1069ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1070ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1071ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 107287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 107387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 107487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 107587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 107687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 107787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 10784352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 10794352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 10804352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 10814352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 10824352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 10834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 10844352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 108518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 108618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 108718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 108818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 108918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 109018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 109118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 109218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 109351eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 109418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 109518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 109618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1097bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 109818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 109918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 110018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 110118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 110218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 110318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 110418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 110518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 110618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 110718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 110818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 110918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 111018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 111118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 111218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1113bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 11144352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 111518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 11164352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 11174352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 11184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 11194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 11204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 11214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 11224352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 11234352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 11244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 11254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 11264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 11274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 11284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 11294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 11304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 11314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 113287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 113387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1134384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1135384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 11367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1137384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1138384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 11397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1140384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1141384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 11427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 11437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 11447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 11457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 11467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 11476595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 11486595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 11496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 11506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 11516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 11536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 11546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 115500755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 11566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1157c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1158c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1159c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 11606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 11626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 11636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 11646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 11666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1167c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1168b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1169b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1170b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 11716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 11736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1174f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 11756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1176f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 11776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 11786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 11804b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 11814b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 11824b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 11834b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 11846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 11856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 11866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 11876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 11886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 11896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 11906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 11916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 11926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 11936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 11956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 11966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 11976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 11986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 119916cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 12006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 12016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 12026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 12036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 1204718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 12056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 12066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 12076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 12086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 12096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 12116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 12123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 121370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 121470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 121570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 121670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1217f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 121870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1219f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 122070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 122170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 122270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 122370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 122470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1225f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 122670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 122770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1228f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 122970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 12306a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 12314b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 12326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 12336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 12344b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 12354b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 12364b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 12374b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 12384b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 12394b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1240a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 1241fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1242fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1243fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1244c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1245fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1246c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 12475f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 1248a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 1249a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng Node->getValueType(0))) { 1250a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1251903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1252903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1253903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1254903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1255903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 1256903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 1257903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, Node->getValueType(0)); 1258903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp1 = DAG.getNode(ISD::SUB, Node->getValueType(0), SP, Size); // Value 1259903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp2 = DAG.getCopyToReg(SP.getValue(1), SPReg, Tmp1); // Output chain 1260c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1261c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1262903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1263903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1264903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 12655f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 12665f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1267c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1268c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1269a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1270903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1271a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1272903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1273a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1274903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1275903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1276c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1277c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1278903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1279a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 128025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1281f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 128225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 128325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 128425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 128525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 128625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 128725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 128825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 128925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 129025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 129125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 129225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 129325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 129425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 129525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 129625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 129725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 129825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 129925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 130025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 130125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 130225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 130325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 130425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 130525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 130625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1307ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 130825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1309f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1310ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1311ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1312c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1313ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1314ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 131525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1316c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1317c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 13196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 13206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 13216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 13226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1323c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1324c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 132537efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 132637efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 132737efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 132837efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 132937efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 133037efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 133137efe6764568a3829fee26aba532283131d1a104Nate Begeman 133237efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 133337efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 133437efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 133537efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 133637efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 133737efe6764568a3829fee26aba532283131d1a104Nate Begeman } 133837efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 133937efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 13403d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 13413d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13423d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 13433d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 13443d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 13453d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 13463d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 13473d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 13483d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 13493d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 13503d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 13513d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 13523d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 13533d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 13543d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 13553d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 13563d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 13573d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 13583d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 13593d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 13603d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 13613d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 13623d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1363acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1364acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 13653d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 13663d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1367acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1368acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1369acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1370acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 1371acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, NULL, 0); break; 1372acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, NULL, 0); break; 1373acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1374acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1375acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 13763d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 13773d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 13783d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // RelocBase is the JumpTable on PPC and X86, GOT on Alpha 13793d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Reloc; 13803d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (TLI.usesGlobalOffsetTable()) 13813d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, PTy); 13823d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng else 13833d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = Table; 1384d063189c0958536aae7ecebec5676541b2cdef9bEvan Cheng Addr = (PTy != MVT::i32) ? DAG.getNode(ISD::SIGN_EXTEND, PTy, LD) : LD; 13853d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, Reloc); 13863d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 13873d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } else { 13883d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), LD); 13893d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 13903d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 13913d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 13923d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1393c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1394c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 13966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 13976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 13986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 13996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 140047e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 140147e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 140247e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 140347e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 140447e9223e06390897c3834f8c527001df392570ffChris Lattner break; 140547e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 140647e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1407f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1408f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1409f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 1410ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 1411f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner MVT::getIntVTBitMask(Tmp2.getValueType())^1)) 1412f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 141347e9223e06390897c3834f8c527001df392570ffChris Lattner break; 141447e9223e06390897c3834f8c527001df392570ffChris Lattner } 1415456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1416456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1417c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 14187cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 14197cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 14207cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1421456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1422456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1423456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1424456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1425456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 14267cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 14277cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 14287cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 14297cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 14307cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 14317cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 14327cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 14337cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 14347cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 14357cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 14367cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 14377cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 14387cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 14397cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 14407cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 14417cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 14427cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 14437cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 14446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 14456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 14466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1447750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1448750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1449750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1450181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1451750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1452722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1453722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1454750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1455750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1456750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1457750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1458750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1459750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1460750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1461750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1462750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1463750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1464456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1465181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1466181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1467456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1468456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1469456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1470456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1471181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 14727cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1473c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1474f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1475466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1476466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1477466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 14782d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1479466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1480466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1481466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1482466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1483466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1484466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1485456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1486466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1487466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1488466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: break; 1489466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1490466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1491466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1492466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1493466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1494466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1495466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1496466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1497466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1498466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1499466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1500466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1501466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1502466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1503466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 1504466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 150541f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1506466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1507f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1508466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1509466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1510466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1511466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1512466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1513466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1514466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 15152e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType SrcVT = LD->getLoadedVT(); 1516466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getLoadXAction(ExtType, SrcVT)) { 1517466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1518466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: 1519466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(SrcVT == MVT::i1 && 1520466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng "Can only promote extending LOAD from i1 -> i8!"); 1521466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1522466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValue(), LD->getSrcValueOffset(), 1523466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::i8); 1524c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1525c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1526c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1527466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1528466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng isCustom = true; 1529466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FALLTHROUGH 1530466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: 1531466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1532466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = Result.getValue(0); 1533466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = Result.getValue(1); 1534456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1535466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (isCustom) { 1536466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 1537466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp3.Val) { 1538466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Tmp3); 1539466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1540466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1541456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1542466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1543466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Expand: 1544466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 1545466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 1546466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 1547466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 1548466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1549466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1550466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Load.getValue(1)); 1551466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1552466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1553fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 1554466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Turn the unsupported load into an EXTLOAD followed by an explicit 1555466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // zero/sign extend inreg. 1556466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 1557466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1, Tmp2, LD->getSrcValue(), 1558466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset(), SrcVT); 1559466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand ValRes; 1560466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) 1561466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1562466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, DAG.getValueType(SrcVT)); 1563466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 1564466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1565466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1566466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1567c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 15689d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 1569466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 1570466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 1571466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1572466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1573466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 157401ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 157501ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 15765dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 15775dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 15785dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1579c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 15805dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 15815dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 15825dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 15835dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 15845dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 15855dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 15865dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 15875dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 15885dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 15895dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 15905dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 15915dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 15925dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 15935dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 15945dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 15955dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 15965dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 15975dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 15985dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 15995dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 16005dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 16015dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 16023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16035dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 16043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 16053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 16063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1607edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1608c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1609d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 16107310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1611d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1612f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1613c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 16147310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1615f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1616c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1617f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1618c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1619c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1620c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1621c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 16227310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 16237310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 16247310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 16257310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1626c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 16277310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1628c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 16297310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 16303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 16323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 16333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 16366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 16376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 16386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 1639f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 16403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 16418e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 164298f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 16438e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 1644f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 16453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 16468e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 16473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1648f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 16497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(Tmp2.getValueType())) { 1650f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1651f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 1652edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 1653edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 1654edf2e8da256496c19390cfd46da80746373e9989Chris Lattner if (!TLI.isLittleEndian()) 1655edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 1656edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 165713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 165813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 165913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 166013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 1661f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 1662f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1663f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 16647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 16657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(0)); 1666f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 16677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 1668ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 1669f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 16707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 1671ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 16727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 16738e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1674f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 1675f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 16767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 16777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 16788e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1679b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1680b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 1681b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 1682b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1683f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 1684f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 1685f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1686f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1687b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 1688b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 1689f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1690f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 1691fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 1692f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1693f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1694f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1695edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 16963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 16978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 16988e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1699c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 17008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 17013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 17023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1704c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 17053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 1707f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 17083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 17098e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 17103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 17113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 17124e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 17138e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 17143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 17163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 17177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(!MVT::isExtendedValueType(Node->getOperand(i).getValueType())&& 1718b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 17193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 17203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 17218e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 172213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 172313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 172413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 172513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 1726edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 17273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 17283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 17298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 17303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1731c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1732c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 1733f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 1734c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 1735f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 1736f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 17373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 17393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 174017c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 17416862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 17426862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 17436862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 17446862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 17456862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 17466862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 17476862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 17486862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 17496862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 175017c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 17513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1752f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 17538b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 17548b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 17558b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 17568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 17578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 1758d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 1759d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 1760d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 1761d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 1762d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 1763d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 1764d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 1765d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner if (CFP->getValueType(0) == MVT::f32) { 1766d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Tmp3 = DAG.getConstant(FloatToBits(CFP->getValue()), MVT::i32); 1767d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } else { 1768d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner assert(CFP->getValueType(0) == MVT::f64 && "Unknown FP type!"); 1769d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Tmp3 = DAG.getConstant(DoubleToBits(CFP->getValue()), MVT::i64); 1770d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1771d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 1772d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner ST->getSrcValueOffset()); 1773d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner break; 1774d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1775d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 17768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (getTypeAction(ST->getStoredVT())) { 17778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 17788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 17792efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 17808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 17818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 17828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 17838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 17848b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 17858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Legal: break; 17868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 17878b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 17888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 17898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 17908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 17918b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 17928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 17938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 17948b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 17958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValue(), ST->getSrcValueOffset()); 17968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 17978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 17982efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 1799f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 18008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 18018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 18028b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 18038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 18048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset(), ST->getStoredVT()); 18058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 180603c8546ec57523970874917854a2fb77b1ff598eChris Lattner 18078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 18088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 18098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 1810c7029805ef35ce9805931067b841e6af11db382eChris Lattner 18118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 18128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 18138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 18147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (MVT::isVector(ST->getValue().getValueType())) { 18158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 18167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 18177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(0)); 18188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 18197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 1820ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 18218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 18227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 1823ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 18247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = LegalizeOp(Node->getOperand(1)); 18258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 18267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ST->getSrcValueOffset(), 18277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ST->isVolatile(), 18287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ST->getAlignment()); 18298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 18308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 18318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 18328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 18337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = ScalarizeVectorOp(Node->getOperand(1)); 18348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 18357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ST->getSrcValueOffset(), 18367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ST->isVolatile(), 18377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ST->getAlignment()); 18388b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 18398b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 18408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 18418b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 18428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 18438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SplitVectorOp(Node->getOperand(1), Lo, Hi); 18448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng IncrementSize = NumElems/2 * MVT::getSizeInBits(EVT)/8; 18458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 1846c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 18478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ExpandOp(Node->getOperand(1), Lo, Hi); 18487b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 18498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 18508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!TLI.isLittleEndian()) 18518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 1852c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 1853c7029805ef35ce9805931067b841e6af11db382eChris Lattner 18548b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 1855b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner ST->getSrcValueOffset(), ST->isVolatile(), 1856b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner ST->getAlignment()); 18577b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 18587b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 18597b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 18607b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 18617b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 18627b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 18637b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 18648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 18658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng getIntPtrConstant(IncrementSize)); 18668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 18678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 18688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // FIXME: This sets the srcvalue of both halves to be the same, which is 18698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // wrong. 18708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 1871b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner ST->getSrcValueOffset(), ST->isVolatile(), 1872b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner std::min(ST->getAlignment(), IncrementSize)); 18738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 18748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 18758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 18768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 18778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncating store 18788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(ST->getValue().getValueType()) && 18798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Cannot handle illegal TRUNCSTORE yet!"); 18808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 18818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 18828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The only promote case we handle is TRUNCSTORE:i1 X into 18838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // -> TRUNCSTORE:i8 (and X, 1) 18848b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (ST->getStoredVT() == MVT::i1 && 18858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getStoreXAction(MVT::i1) == TargetLowering::Promote) { 18868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Promote the bool to a mask then store. 18878b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::AND, Tmp3.getValueType(), Tmp3, 18888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng DAG.getConstant(1, Tmp3.getValueType())); 18898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 18908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset(), MVT::i8); 18918b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 18928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 != ST->getBasePtr()) { 18938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 18948b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 1895d9731af75b38f30c02f19d6e81333b9c2599ad5fChris Lattner } 1896c7029805ef35ce9805931067b841e6af11db382eChris Lattner 18978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType StVT = cast<StoreSDNode>(Result.Val)->getStoredVT(); 18988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getStoreXAction(StVT)) { 18998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 19008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Legal: break; 19018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 19028b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 19038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 19048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 19058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 19063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1908f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 190995762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 191095762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1911c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 191295762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 1913140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 1914140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1915c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1916c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1917c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1918456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1919140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 1920140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1921456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1922456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1923c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1924c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 1925c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1926c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1927140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1928456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1929140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 19304f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 19314f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 19324f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 1933c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 19344f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 1935c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 19364f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 1937c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 1938c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 19394f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1940456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1941140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1942456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1943456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 1944456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 1945c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1946c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1947c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1948456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1949140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 1950140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1951140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 1952c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1953140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 1954140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 1955140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1956456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1957456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1958456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1959456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1960140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1961140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 19624f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 19634f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 19644f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 19654f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 19664f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 19674f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 19684f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1969140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1970140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1971140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1972140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 197351b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 197451b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 1975c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1976f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 1977f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 1978f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 19796a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 19806a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 19816a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 19826a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 1983f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 1984f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 19856a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 19866a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 1987f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 1988f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 198949c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 199049c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 199149c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 19926a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 19936a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1994c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 1995f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 19962ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 199747e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 199847e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 199947e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 200047e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 200147e9223e06390897c3834f8c527001df392570ffChris Lattner break; 200247e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 200347e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2004b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 2005ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 2006b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner MVT::getIntVTBitMask(Tmp1.getValueType())^1)) 2007b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 200847e9223e06390897c3834f8c527001df392570ffChris Lattner break; 200947e9223e06390897c3834f8c527001df392570ffChris Lattner } 20103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 20112ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 201255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2013c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2014456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2015b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 201655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2017456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2018456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2019456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2020456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2021456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2022456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 20239373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 20249373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 20259373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 20269373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 20279373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 20289373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 20299373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 20309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 20319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 20329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 203355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 203455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 203555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 203655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 203755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 203841f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 203941f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 204041f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 204141f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 2042456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2043456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 204455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2045456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2046456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 204755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 204855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 204955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 205055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 205155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 205255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 205355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 205455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 205555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 205655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 20573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2058750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2059750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2060750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 20619373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 20629373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2063750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 20649373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2065750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2066750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2067750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2068750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2069750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2070750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2071750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2072750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2073750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2074750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2075750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2076750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2077750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2078750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2079750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2080750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2081750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2082750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 20839373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 20849373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 20859373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2086750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 20873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2088750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2089750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2090750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2091750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2092750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2093750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2094750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2095750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2096750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2097750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 20983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 20993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2100b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 210173e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2102456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2103456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2104456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2105456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2106456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 21072b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2108456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 21092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 21102b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2111456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2112b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2113ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2114ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2115ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2116ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2117ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 211800755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner MVT::ValueType OldVT = NewInTy; OldVT = OldVT; 2119ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2120ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2121ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2122ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2123ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2124ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2125ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2126ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2127ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2128ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2129ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 21301ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2131ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2132ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2133ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2134ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2135ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2136ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2137ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2138ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2139c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2140c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 21412b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2142433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 21435e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2144ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2145b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2146b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2147b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2148b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2149b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2150b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 21512b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2152b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2153b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 21543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2155e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 2156e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 2157e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 2158deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 2159e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 2160e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 2161e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 2162e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 2163e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 2164e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2165deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 2166e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2167e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2168deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 2169e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2170e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2171e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 2172edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 2173e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2174272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2175272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2176272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 21776814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 21786814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 21796814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 2180fa9aa2b424d0a7d9f7201f8fdcf5ccfa05db3a80Chris Lattner ExpandOp(Node->getOperand(3), Tmp4, HiPart); 21816814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 21826814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2183e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2184e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2185e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2186e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2187e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2188272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2189272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2190272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2191272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2192272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2193272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2194272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2195272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2196272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2197272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2198e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2199e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2200e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 220155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 220255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 220355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2204456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2205456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2206456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 220755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2208c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, Tmp5); 2209456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2210456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2211456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2212456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 221355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 221455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2215e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2216e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2217e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2218a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 221947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListTy Args; 222047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 2221e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 22223bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2223e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2224d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp2; Entry.Ty = IntPtrTy; 222547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2226dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2227dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2228dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2229dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2230dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2231dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2232d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp3; Entry.Ty = Type::Int32Ty; Entry.isSExt = true; 223347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2234d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp4; Entry.Ty = IntPtrTy; Entry.isSExt = false; 223547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2236e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2237e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2238e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2239e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2240b25fe8267182662750dcb76a70a20f4b14a5568dAnton Korobeynikov Entry.Ty = IntPtrTy; 2241b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp2; Args.push_back(Entry); 2242b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp3; Args.push_back(Entry); 2243b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp4; Args.push_back(Entry); 2244e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2245e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2246e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2247e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 224845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2249e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 225047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(Tmp1, Type::VoidTy, false, false, CallingConv::C, false, 2251e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2252456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 225355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 225455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2255e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2256e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2257e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 225852d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 22595b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 22605b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 22615b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2262f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 226384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 226484f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 226584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 226684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 226784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2268c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2269f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 22702c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 227105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 227205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 227305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2274456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2275456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2276456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2277456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2278456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 227905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2280456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 228105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 228205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 228312f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 228405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2285269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 228605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 228705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 228805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 228905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 229005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 22912c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 22922c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 22932c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 22942c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 22952c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 229684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 22972c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 22982c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 22993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 23003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 23013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2302c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2303c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 23043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 23053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 23063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 23073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 23083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 230903c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 231003c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 231103c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 231201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 231301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 231401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 231501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 23163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2317f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2318f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2319f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2320f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2321f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2322f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2323f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2324f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2325f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2326c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2327c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2328456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2329e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2330bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2331456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2332456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2333456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2334456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 233557030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2336bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 233752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (Node->getValueType(0) == MVT::i32) { 233852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng switch (Node->getOpcode()) { 233952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng default: assert(0 && "Do not know how to expand this integer BinOp!"); 234052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::UDIV: 234152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::SDIV: 234256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UDIV 234356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 234452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 234547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = Node->getOpcode() == ISD::SDIV; 234656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 234752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng }; 234852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 234952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 235052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 2351bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 2352bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 2353bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 2354bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 235551eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(Node->getValueType(0)); 2356bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 2357bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner for (unsigned i = 0, e = MVT::getVectorNumElements(Node->getValueType(0)); 2358bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner i != e; ++i) { 2359bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand Idx = DAG.getConstant(i, PtrVT); 2360bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand LHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, Idx); 2361bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand RHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, Idx); 2362bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner Ops.push_back(DAG.getNode(Node->getOpcode(), EltVT, LHS, RHS)); 2363bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2364bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, Node->getValueType(0), 2365bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 2366bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 2367bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2368cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 2369cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 2370cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 2371cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 2372cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 2373cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 2374cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 2375cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2376cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 2377cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 2378cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 2379cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 2380cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 2381cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 2382cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 2383cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 2384cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2385cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2386cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2387e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 23883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2389a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2390a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 2391a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2392a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 2393a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 2394a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 2395a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2396a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2397a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 2398a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2399a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2400a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2401a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2402a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2403a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2404a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2405a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 2406a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 2407a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2408a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 24098f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 2410a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 2411912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 2412636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 2413636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 2414636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 2415636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 2416636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 2417912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 2418636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 24198f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 24208f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 24218f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 24228f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 24238f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 24248f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 24258f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 24268f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 24278f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 24288f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 24298f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 24308f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 24318f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 24328f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 24338f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 24348f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 24358f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 24368f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 24378f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 2438912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType NVT = 2439912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 2440912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 2441912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 2442912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 2443a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2444a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2445912095becac923ff614d7b07728eb345ada67765Evan Cheng } 2446a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2447a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2448551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 2449551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 2450551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2451551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2452551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2453551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2454551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2455551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2456551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2457551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2458edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2459551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 2460551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 2461551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2462551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2463551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 2464551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2465551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2466551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2467551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2468551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2469551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2470551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 2471419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 2472419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 2473419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 2474419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 2475419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 2476419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 2477456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2478456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2479456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 2480419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 2481419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 2482419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 2483419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2484419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 2485419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 2486419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 2487419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 2488419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 2489419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 2490456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 2491419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2492419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2493419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2494419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2495419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 2496c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 2497c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 249801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2499c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2500c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2501456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2502c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2503456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 2504456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2505456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2506456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 250757030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 2508c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2509456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2510456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2511456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2512456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 251357030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 25144c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner case TargetLowering::Expand: 25156b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 251647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 25174c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner if (MVT::isInteger(Node->getValueType(0))) { 251852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (TLI.getOperationAction(DivOpc, Node->getValueType(0)) == 251952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 252052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 252152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng MVT::ValueType VT = Node->getValueType(0); 25226b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 252352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 252452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 252552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 252652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng assert(Node->getValueType(0) == MVT::i32 && 252752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 252856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 252956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 253052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 253156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 253252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 25334c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner } else { 25344c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner // Floating point mod -> fmod libcall. 253556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getValueType(0) == MVT::f32 253656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::REM_F32 : RTLIB::REM_F64; 25374c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner SDOperand Dummy; 253856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 253956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 2540c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2541c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2542c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2543c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2544acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 2545acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2546acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2547acc398c195a697795bff3245943d104eb19192b9Nate Begeman 25485c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2549acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 2550acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2551456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2552456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2553456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2554acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2555c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2556c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 2557456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 2558456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2559456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2560456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 2561456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 2562456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 2563456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 2564456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2565456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2566acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2567acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 2568466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 2569acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 2570466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 2571acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 2572acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 2573acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 2574acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 2575acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 25768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 25778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 2578acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 2579466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 2580456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 2581acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 2582acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2583acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2584acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2585acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 2586acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 2587acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 2588456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 2589456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 2590acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2591acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2592acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 2593acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2594acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 2595acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 2596acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2597acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 2598acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2599456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2600456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2601456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2602acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2603c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 2604c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 2605456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2606456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2607456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2608456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2609acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2610acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2611acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 2612acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 2613466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SVD = cast<SrcValueSDNode>(Node->getOperand(3)); 26148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SrcValueSDNode *SVS = cast<SrcValueSDNode>(Node->getOperand(4)); 2615466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, SVD->getValue(), 2616466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SVD->getOffset()); 26178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, SVS->getValue(), 26188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SVS->getOffset()); 2619acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2620acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2621acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2622acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2623acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 2624acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2625acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2626acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2627acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 2628acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2629456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2630456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2631456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2632acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2633c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2634456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2635456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 2636456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2637456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2638acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2639acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2640acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 2641acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2642acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2643acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2644acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2645acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 2646acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2647acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2648acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2649c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2650c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2651acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 2652acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2653456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2654456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2655456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2656456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2657acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2658acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2659acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2660acc398c195a697795bff3245943d104eb19192b9Nate Begeman 266135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 266235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 266335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 266435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2665c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2666c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2667c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 2668c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 2669c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2670c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 2671c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2672c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 2673c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 2674c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 2675c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2676c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 2677c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 2678c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2679c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 2680c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 2681c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2682c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 268335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 268435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 2685d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2686d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2687d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2688456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2689456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 2690456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2691c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2692456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2693456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 2694456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 2695456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2696b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned DiffBits = MVT::getSizeInBits(NVT) - MVT::getSizeInBits(OVT); 2697456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2698456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2699456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2700456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2701456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 2702456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2703456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2704456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 2705456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 2706456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2707d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 2708d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2709d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 2710691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2711691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2712691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2713691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2714691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2715456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: assert(0 && "Cannot custom handle this yet!"); 2716691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 2717c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2718691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2719691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 2720691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 2721691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2722edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 2723edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 2724691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2725691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 2726691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 2727456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2728691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2729691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 2730691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2731691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2732691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 27337cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 2734b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 27357cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 273600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2737b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1); 2738691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2739691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2740456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 274100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 2742b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 2743b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(OVT), NVT)); 2744691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2745691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2746691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2747691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2748691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 2749456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 2750691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2751691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2752691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 275300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 27542c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 27552c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 27562c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 2757da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 2758da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 2759da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 27602c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 27612c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2762456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2763456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 276459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 276559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 27662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 2767c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 276859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 276959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 277059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 277159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 27722c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 27732c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 2774456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2775456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 2776456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 27772c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 27782c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 2779456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 2780f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2781f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 27824af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 27834af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 27844af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 27857cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 27864af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 27874af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 2788f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2789f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 2790f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 2791f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 2792f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 2793f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 279456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2795f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 279656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 279756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SQRT_F32 : RTLIB::SQRT_F64; 279856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 279956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 280056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 280156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 280256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 280356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::COS_F32 : RTLIB::COS_F64; 280456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 2805f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 2806f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 28072ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 280856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 280956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 2810f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2811f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 28122c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 28132c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 28142c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 28152c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 28166ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 28176ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner // We always lower FPOWI into a libcall. No target support it yet. 281856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getValueType(0) == MVT::f32 281956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::POWI_F32 : RTLIB::POWI_F64; 28206ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 282156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 282256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 28236ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 28246ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 282535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 282667993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 282735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 28287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::isVector(Op.getOperand(0).getValueType())) { 28297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 28307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 28317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 28327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 28337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(0)); 28347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 28357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 28367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 28377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 28387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 28397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the packed input. 28407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 28417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 28427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 28437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 28447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 28457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 28467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 28477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 28487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 28497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 28507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 28517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 285267993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 285335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 285435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 285535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 285635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 285735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 285835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 285935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 286035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2861c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 286235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 286335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 286435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 286535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 2866d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 28672c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 2868fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 2869fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 2870fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 2871fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2872fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2873d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 2874fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 2875fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 2876456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2877456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2878456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2879456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2880456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2881c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2882456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2883456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2884456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2885456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2886456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2887fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 28886269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 28896269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 28906269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 2891456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2892fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 2893fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 2894fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 2895fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 2896fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 28975b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 2898fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2899fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2900fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 2901fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 2902fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2903fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2904c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2905fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 2906c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 2907c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 2908fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 2909c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 2910c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 2911fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2912c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2913c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 2914fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2915fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2916fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2917fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2918fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 2919fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2920fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2921fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2922c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2923fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2924fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2925fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 2926fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 2927fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 2928fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 2929fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 2930fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2931fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2932fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 2933fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 2934fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2935fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2936fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2937d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 2938fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 2939fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 2940fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2941fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2942f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2943f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 29441618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 29451618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 2946456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2947456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2948456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2949456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2950c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2951456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2952456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2953456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2954456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2955456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2956456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2957456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 2958456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 2959456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 29601618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 2961d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 2962d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 2963d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 2964d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 2965d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman unsigned ShiftAmt = MVT::getSizeInBits(Node->getValueType(0))-1; 2966d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getConstantFP((double)(1ULL << ShiftAmt), VT); 2967d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 2968d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 2969d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 2970d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 297101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 2972d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 2973d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 2974d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 2975456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 2976456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2977d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 2978d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 2979d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 2980d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 29811618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 2982fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 29836af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 29846af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng // Convert f32 / f64 to i32 / i64. 29856af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 298656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 29876af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 29886af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_SINT: 29896af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 299056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 299156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 29926af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 299356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 299456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 29956af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 29966af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_UINT: 29976af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 299856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 299956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 30006af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 300156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 300256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 30036af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 30046af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 30056af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 30066af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 300756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 300856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 30096af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 30106af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3011fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3012c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3013c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3014c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3015fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3016fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3017fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3018d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 301913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 30203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 30213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 302203c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_EXTEND: 302303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_ROUND: 30243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3025456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 30263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 30273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3028c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 30293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 303003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 303103c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 303213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3033c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3034c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 303513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 30361713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 30371713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 303813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 303923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 304023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 304103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 304203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 30431713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 304413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 30451713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 304615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 304715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 30481713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 304903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 30501713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 30511713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 30521713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 30531713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 30541713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 305503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 3056f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 3057f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 3058f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 305903c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 30603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 30613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 30620f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 306323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 30640f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 306515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 306645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 306745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 306845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 306955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 307055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 307155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3072c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 307355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 307455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 307545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 307623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 307745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 307845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 307945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 308045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 308127ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 308245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 308345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 308445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 308545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 308645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 30872d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 308845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 308945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 309045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 309145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 309245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 309345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 309444b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty); 3095d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 309645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 3097edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 309844b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner MF.getFrameInfo()->CreateStackObject(TySize, Align); 309945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 31008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 31018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StackSlot, NULL, 0, ExtraVT); 31025f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 3103466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, StackSlot, NULL, 0, ExtraVT); 310445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 310545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 310645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 310755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 310845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 31090f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 31103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 311145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 3112456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 31134ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 31144ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 31154ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 3116456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 3117456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3118456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 31193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 312045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 312145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 312245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 31233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 31243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 31253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 31268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 31278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 31288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 31298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 313003c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 313103c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 313271c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 313303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 313403c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 313503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 313603c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 313703c8546ec57523970874917854a2fb77b1ff598eChris Lattner 313803c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 313903c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 314003c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 314103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 314240030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 31436fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 314445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 314503c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 3146d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 3147d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 314803c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 3149e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 315039833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 3151e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 315203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 315303c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 3154fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3155fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 3156fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 315703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 3158ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 3159ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 3160ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 3161ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 316203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 316303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 316403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 316503c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 316603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 316703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3168ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 316982fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 3170c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 31717cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 31727cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 317382fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 3174fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 317503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 317603c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 317703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 317803c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 317903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 318003c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 318103c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 318203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 318303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3184e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 3185e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 3186e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 3187e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 3188e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 318903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 319079e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 319179e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 3192e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 319303c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 319403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 31958b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 31968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 319713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 31988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 31998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 32008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 32018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 3202456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 32038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 32058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 32068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 32078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 32088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 3209595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 321015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 321113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 321223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 321323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 32148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 32168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 321735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 321835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 321935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 322035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 322135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 32228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 32238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 32248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 32258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 32268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 32278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 32288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 32298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 3230456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 323115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 32328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 32348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 32368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 32378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 32388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 32398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 324077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 3241456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 32428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 32448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 32458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 32468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 32478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 324815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 324915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 32508b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 325123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 325223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 325377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 325477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 32558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 325777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 325877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 325977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 326077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 326115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 326215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 326377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 32648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 32658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 32675e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 32685e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 32695e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 32705e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 32715e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 32728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 32738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 32748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 32758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 32760b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 3277456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 32788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 32808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 32818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 32828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 32838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 3285d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 3286d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 3287d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 3288d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 3289d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 3290d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 3291c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 3292b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 3293b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 3294d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 3295d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3296d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3297d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 32988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 33002c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 33012c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 33022c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 33032c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 33042c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 33052c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 33062c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 33072c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 33082c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 33092c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 3310da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3311da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3312da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 3313da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3314da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 3315da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3316456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 331715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 331815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3319da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 3320da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 33218b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 33228b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 33238b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 33248b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 33258b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 33268b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 33278b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 33288b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 33298b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 33308b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 33318b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 33328b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 333303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 333403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 333503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 33360f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 33378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 33380f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 33390f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 334001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 33410f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 33420f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 33430f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 33440f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 33450f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 334601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 334701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 334801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 334901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 335001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 335101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 335201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 335301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 335401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 335501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 335601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 335701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 33588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 33598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 336001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 336115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 336215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 33630f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 33640f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 33658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 33668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 33678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 33688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 33698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 33708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 337115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 337215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 337315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 337415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 33758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 33768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 33778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 33788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 33798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 338015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 338115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 33828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 338301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 338401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3385a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 338601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 3387ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 3388ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3389ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3390ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3391ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3392ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = PromoteOp(Node->getOperand(0)); 3393ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3394ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3395ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3396ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 3397ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 3398ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3399ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3400ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3401ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3402ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = PromoteOp(Node->getOperand(1)); 3403ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3404ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3405ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3406ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 340701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 340801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 340901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 3410a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 341101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 341201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 341301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 34148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 34158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 34168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 34178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 34188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 34198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 34208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 342123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 342223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 34238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 34248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 34268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 34278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3428456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 34298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 34318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 34328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 343315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 343415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3435456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 34368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 34388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 34398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 344023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3441456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 34428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34430aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 34440aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 3445456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 3446456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 34470aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 34480aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 34490aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 34500aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 3451466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 34520aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 3453466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 34540aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 34550aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 34560aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 34570aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 34580aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 34598b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 34608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 34610aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 3462466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 34630aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 34640aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 3465456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 34660aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 34670aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 3468466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 3469466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 347062f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 347162f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 347262f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 347362f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 347455b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 34752e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng LD->getLoadedVT()); 34764c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 3477456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 34784c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 3479466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 348003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 348103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 348203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 3483456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 348403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 34859373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 34869373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 34879373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 34889373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 3489456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 34909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 3491d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3492d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 3493d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3494d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3495d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3496b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3497b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), 3498d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 3499d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3500fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3501fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3502fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3503456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 3504456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 3505fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 3506fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3507456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 3508fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3509fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 3510fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3511fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3512456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 3513d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 3514b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 3515b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 351600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3517b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), NVT), Tmp1); 3518fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3519fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3520fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 352100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 3522b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3523b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), NVT)); 3524fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3525fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 3526fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 35277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 35287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 35296595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 35304aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 35314aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 35324aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 353303c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 353403c8546ec57523970874917854a2fb77b1ff598eChris Lattner 353503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 3536456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3537456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 3538456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 3539456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3540456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 354103c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 354203c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 354303c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 35443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 35457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 35467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 35477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 35487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 35497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 35501597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 35511597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 35521597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 35531597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 35547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Idx = Op.getOperand(1); 35551597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 35561597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDNode *InVal = Vec.Val; 35577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = InVal->getValueType(0); 35587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(TVT); 35591597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 35607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 35617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 35627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 35637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 35647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 35657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Tmp3 = TLI.LowerOperation(Op, DAG); 35667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 35677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 35687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 35707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 35717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 35727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 35737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 35747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = LegalizeOp(Op); 35757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 35767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 35787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 35807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 35817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 35821597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 35837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 35847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 35857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 35861597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 35871597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 35881597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (CIdx->getValue() < NumElems/2) { 35891597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 35901597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 35911597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 35927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, 35937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 35941597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 35957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 35961597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 35971597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 35987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 35991597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 36007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 36017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 36027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand StackPtr = CreateStackTemporary(Vec.getValueType()); 36037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 36047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 36057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 36067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 36077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 36087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 36097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 36107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 36117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 36121597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 36137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 36141597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 36151597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 36167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 36176595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 36187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDOperand Op) { 36196595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 36206595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 36216595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 36226595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 36236595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 36247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(Vec.getValueType()); 36256595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 36266595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (NumElems == MVT::getVectorNumElements(Op.getValueType())) { 36276595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 36287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 36296595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 36306595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 36316595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 36326595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 36336595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 36346595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 36356595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 36366595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 36376595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 36386595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 36396595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 36406595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 36416595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 36426595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 36437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 36444aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 36454aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 3646750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 3647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 3648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 3649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 3650750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 3651750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 3652750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 3653750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 3654750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 3655750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand Tmp1, Tmp2, Result; 3656750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3657750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 3658750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 3659750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 3660750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 3661750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3662750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 3663750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 3664750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 3665750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3666750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 3667750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 3668750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 3669750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 3670750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3671750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 3672750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 3673750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 3674750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 3675750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3676750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 3677750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3678750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3679750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 3680750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 3681750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 3682750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 3683750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 3684750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 3685750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 3686750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3687750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 3688750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3689750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3690750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3691750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3692750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3693750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 3694750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3695750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 3696750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3697750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3698750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3699750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3700750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 37012b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 37022b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 37032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 37042b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 370556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 37062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 37072b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 37082b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 370956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 37102b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37112b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 37122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 371356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 37142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37152b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 37162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 371756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 37182b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37192b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 37202b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 372156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 37222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 37242b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 372556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 37262b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37272b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 37282b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 372956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 37302b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37312b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 3732d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 3733d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 37342b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 37355efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 37362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37372b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 373856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 37392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 37402b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 37412b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 374256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 37432b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 37442b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 374556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 37462b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37472b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 374856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 37492b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37502b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 375156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 37522b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37532b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 375456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 37552b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 375656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 375756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 375856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 37592b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 37602b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 37612b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 37622b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 37632b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 376456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Tmp1 = ExpandLibCall(TLI.getLibcallName(LC1), 376547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 3766b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 37672b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 3768d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 376956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 37702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), Tmp1, Tmp2, CC); 377156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LHS = ExpandLibCall(TLI.getLibcallName(LC2), 377247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 3773b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 37742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHS, Tmp2, 3775d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 37762b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 37772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 37782b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 37792b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 37802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 37812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 37822b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 37832b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 3784750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 3785750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 37862b49c500838666dd0186d021389d4dd70ffda240Evan Cheng ExpandOp(RHS, RHSLo, RHSHi); 3787750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3788750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3789750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3790750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 3791750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 3792750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 3793750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 3794750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 3795750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 3796750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3797750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3798750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3799750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 3800750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 3801750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 3802750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 3803750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3804750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 3805750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 3806750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 3807750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 3808750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 3809750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 3810750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 3811750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 3812750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 3813750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 3814750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3815750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3816750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3817750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 3818750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 38192e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 38202e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 3821750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 3822750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3823750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 3824750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3825750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 3826750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3827750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 3828750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3829750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 3830750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3831750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3832750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 3833750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 3834750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 3835750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3836750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 3837750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 38382e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 38392e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC, 38402e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng false, DagCombineInfo); 38412e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 38422e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 38432e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 38442e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 38452e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 38462e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi, CC); 38472e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 38482e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 38492e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 38502e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if ((Tmp1C && Tmp1C->getValue() == 0) || 38512e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 0 && 38522e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 38532e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 38542e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 1 && 38552e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 38562e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 38572e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 38582e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 38592e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 38602e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 38612e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 38622e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 38632e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 38642e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 38652e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 38662e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result=DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 38672e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 38682e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 38692e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 38702e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 38712e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 3872750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3873750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 38742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 3875750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 3876750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 3877750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 3878750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 387935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 3880232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 3881232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 388235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 388335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 388435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 3885ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(DestVT); 388635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 388735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 38888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, NULL, 0); 388935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 3890466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 389135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 389235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 38934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 38944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 38954352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 38964352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand StackPtr = CreateStackTemporary(Node->getValueType(0)); 3897786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 38988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0); 3899466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, NULL, 0); 39004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 39014352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 39024352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 3903ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 3904ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// support the operation, but do support the resultant packed vector type. 3905ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 3906ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3907ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 390887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 3909033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 3910ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 391187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 3912033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 3913033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 39142eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 39152eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 39162eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 39172eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 39182eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 3919033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 3920033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 392189a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 3922033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 3923ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 3924033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 392587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 39262eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 39272eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 39282eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 39292eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 39302eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 39312eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 3932ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3933ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3934ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 3935ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 3936ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 3937ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 3938ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 3939ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 3940ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 3941ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3942ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 39432eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 3944ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 3945ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 3946ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 3947ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 3948ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 3949033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 3950ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 3951ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 3952ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(ConstantFP::get(OpNTy, V->getValue())); 3953ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 3954ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 3955b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 3956ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 3957ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 3958ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 3959ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3960ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 39619d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 3962ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 3963466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 3964ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 39652eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 39662eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 39672eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 39682eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 39692eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 397051eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman SDOperand Zero = DAG.getConstant(0, MVT::getVectorElementType(MaskVT)); 39712eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 3972bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 3973bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 3974033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 39752eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 39764352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 39772eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 39782eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 39792eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 39802eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 39812eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 39822eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 39832eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 39842eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 39852eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 39862eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 39872eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 3988033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 3989033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 3990033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 3991033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 3992033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 3993033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 3994033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 3995033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 3996033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 3997033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 3998033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 3999033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 400051eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MaskVec[*II] = DAG.getConstant(i, MVT::getVectorElementType(MaskVT)); 4001033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 4002033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4003bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4004bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 4005033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4006033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 40074352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 40084352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 4009bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 4010033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4011033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4012033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4013033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 4014033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 4015033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4016033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 4017033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4018033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 4019bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 4020bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 4021033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4022033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4023ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4024ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 4025ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 4026ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 4027ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4028ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 4029ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(VT); 4030ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4031ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 4032bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 4033ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 4034ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 4035ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 4036ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 4037ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 4038ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 4039ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4040841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 4041ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4042ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 4043ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 4044ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4045786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 40468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 4047ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4048ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4049ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 4050ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 4051bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 4052bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 4053ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 4054ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 4055ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4056ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 4057466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 4058ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4059ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4060ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// CreateStackTemporary - Create a stack temporary, suitable for holding the 4061ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// specified value type. 4062ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::CreateStackTemporary(MVT::ValueType VT) { 4063ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo(); 4064ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned ByteSize = MVT::getSizeInBits(VT)/8; 406558092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *Ty = MVT::getTypeForValueType(VT); 4066d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned StackAlign = (unsigned)TLI.getTargetData()->getPrefTypeAlignment(Ty); 406758092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int FrameIdx = FrameInfo->CreateStackObject(ByteSize, StackAlign); 4068ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getFrameIndex(FrameIdx, TLI.getPointerTy()); 4069ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4070ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 40715b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 40725b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 40735b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 40745b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 40755b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 40765b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 40775b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4078bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 4079f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 4080f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 40815b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 40825b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 40835b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 40845b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4085e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 4086e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 4087e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 4088e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 4089e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 4090e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 4091e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 4092e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 4093f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4094e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 4095f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 4096f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 4097f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 4098f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 4099f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4100f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Handle the case when Amt is an immediate. Other cases are currently broken 4101f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // and are disabled. 4102f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 4103f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 4104f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 4105f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 4106f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 4107f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 4108f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 4109f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4110f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4111f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4112f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4113f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4114f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 4115ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4116ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 4117ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 4118f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4119f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 4120f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 4121f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 4122f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 4123f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4124f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4125f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 4126f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4127f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4128f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4129f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4130f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 4131f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4132ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4133ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4134ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 4135f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4136f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4137f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4138f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4139f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 4140f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4141f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4142f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 4143f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4144edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 4145f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4146f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4147edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 4148f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 4149edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4150f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4151ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4152ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4153edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4154ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 4155f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4156f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4157f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4158f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4159f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 4160f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4161f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4162f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4163f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 41640ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 41650ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 41660ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 41670ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner uint64_t Mask = NVTBits, KnownZero, KnownOne; 4168ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 41690ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 41700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is one, then we can do 41710ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 41720ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownOne & Mask) { 41730ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 41740ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 41750ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 41760ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 41770ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 41780ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 41790ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 41800ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 41810ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 41820ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 41830ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 41840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 41850ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 41860ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 41870ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 41880ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 41890ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 41900ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 41910ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 41920ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 41930ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 41940ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 41950ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 41960ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 41970ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is zero, then we can do 41980ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 41990ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownZero & Mask) { 42000ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 42010ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 42020ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 42030ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 42040ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 42050ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 42060ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 42070ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 42080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 42090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 42100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 42110ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 42120ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 42130ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 42140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 42150ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 42160ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 42170ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 42180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 42190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 42200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 42210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 42220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 42230ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 42240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 42250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 42260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 42270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 42280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 42290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 4230f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 4231e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 423277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 42339c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 423477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 423577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 423677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 423777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 423877e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 423947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 42406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 42416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 42426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 42436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 42446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 42456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 424677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 424747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 424877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 424977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 425077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 425147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 4252d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 425347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 425477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 425577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 4256edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 42570d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 425877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 42590d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 426047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(InChain, RetTy, isSigned, false, CallingConv::C, false, 4261adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 42620d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 42636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 42646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 42656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 42666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 426799c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 42680d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 426977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 427077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 4271456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 427299c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 427377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 427499c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 427599c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 427677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 427722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 427822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 427922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 428022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 42814c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 42824c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 428322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 428422cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 428522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 428622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 428722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 428822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 428922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 429022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 429122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 429222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 429322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 429422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 429522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 429622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 429722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 429822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 429922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 430022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 430122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 430222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 430322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 430422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 430522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 430622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 430722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 430822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 430922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 431022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 431147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 431222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 431322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 431422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 431522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 431622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 4317466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 431822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 431922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unexpected conversion"); 43204c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 432122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 4322466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng CPIdx, NULL, 0, MVT::f32); 432322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 43244c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng MVT::ValueType SCVT = SignedConv.getValueType(); 43254c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 43264c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 43274c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 43284c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (MVT::getSizeInBits(SCVT) != MVT::getSizeInBits(DestTy)) { 43294c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(SCVT == MVT::i32 && DestTy == MVT::f64); 43304c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BUILD_PAIR, MVT::i64, 43314c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 43324c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 43334c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 43344c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 433522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 433622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 433722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 433822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 433922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 434022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 434122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 434222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 434322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 434422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 434522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 434622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 434722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 434822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 434922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 435022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 435122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 435222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 435322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 435422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 435522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 435622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 435722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 435822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 435956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 436022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 436156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F32; 436222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 436322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 436456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F64; 436522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 43666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 43674c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 43686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 43696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 437056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng return ExpandLibCall(TLI.getLibcallName(LC), Source.Val, isSigned, 437156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng UnusedHiPart); 437222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 437322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 437422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 437522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 437622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 437722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 437822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 437922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 438022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 438122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 438222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 438322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 438458092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner // get the stack frame index of a 8 byte buffer, pessimistically aligned 438522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 438658092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *F64Type = MVT::getTypeForValueType(MVT::f64); 438758092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner unsigned StackAlign = 4388d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner (unsigned)TLI.getTargetData()->getPrefTypeAlignment(F64Type); 438958092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, StackAlign); 439022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 439122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 439222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 439322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 439422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 4395408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 4396408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 4397408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 4398408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 4399408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 440022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 440122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 440222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 440322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 440422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 440522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 440622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 440722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 440822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 440922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 4410786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 44118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 441222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 441322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 441422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 44158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 441622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 4417466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 441822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 441922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 442022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 442122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 442222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 442322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 442422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 442522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 442622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 442722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 442822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 442922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 443022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 443122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 443222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if f32 then cast to f32 443322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f32, Sub); 443422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 443522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 443622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 443722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 443822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 443922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 444022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 444122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 444222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 444322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 444422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 444522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 444622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 444722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 444822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 444922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 445022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 445122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 445222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 445322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 445422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 445522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 445622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 445722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 445822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 445947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 446022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 446122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 446222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 446322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 446422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 4465466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 446622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 446722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestVT == MVT::f64 && "Unexpected conversion"); 446822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, 446922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 4470466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng NULL, 0, MVT::f32)); 447122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 447222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 447322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 447422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 447522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 447622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 447722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 447822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 447922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 448022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 448122cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 448222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 448322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 448422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 448522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 448622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 448722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 448822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 448922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 449022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 449122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 449222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 449322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 449422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 449522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 449622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 449722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 449822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 449922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 450022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 450122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 450222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 450322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 450422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 450522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 450622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 450722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 450822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 450922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 451022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 451122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 451222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 451322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 451422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 451522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 451622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 451722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 451822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 451922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 452022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 452122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 452222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 452322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 452422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 452522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 452622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 452722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 452822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 452977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 453077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 453122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 453222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 453322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 453422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 453522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 453622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 453722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 453822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 453922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 454022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 45419c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 454222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 4543e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 454422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 454522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 454622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 454722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 454866de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 454922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 455022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 455122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 455222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 455322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 455422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 455522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 455622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 455722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 455822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 455922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 456022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 4561e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 456222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 456322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 456422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 456522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 456622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 456722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 456822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 456922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 457022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 457122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 4572e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 457322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 45740d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 457522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 4576a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 4577a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 457822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Truncate the result of the 457922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // extended FP_TO_*INT operation to the desired size. 458022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, 458122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(OpToUse, NewOutTy, LegalOp)); 458222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 458313689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 458422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 458522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 458622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 458722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 458822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 458922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 459022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 459122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 459222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 459322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 459422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 459522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 459622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 459722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 459822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 459922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 460022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 460122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 460222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 460322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 460422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 460522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 460622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 460722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 460822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 460922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 461022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 461122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 461222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 461322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 461422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 461522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 461622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 461722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 461822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 461922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 462022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 462122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 462222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 462322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 462422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 462522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 462622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 462722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 46280d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 462977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 4630edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 463122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 463222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 463322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 463422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 463522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 463622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 463722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 463822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 463922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 464022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 464122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 464222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 464322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 4644b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 464522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 464622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 464722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 464822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 464922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 465022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 465122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 465222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 465322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 465422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 465522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 465622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 465722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 465822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 465922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 466022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 466122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 466222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 466322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 466422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 466522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 466622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 4667b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 466822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 466922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 467022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 467122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 467222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 467322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 467422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 467522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 467622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 467722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 467822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 467922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 468022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 468122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 468222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 468322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 468422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 468522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 468622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 468722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 468822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 4689b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), VT), 469022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 469122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 469222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 469322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 469422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 4695e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 46963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 46973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 46983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 46993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 47003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 47013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 47023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 470371c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 47043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 47053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 47061a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 47077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::isVector(VT)) && 47083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 47093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 47106fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 471140030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 47126fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 47136fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 47146fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 47156fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 47166fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 47173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 47183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 47193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 4720348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 4721348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 4722348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 4723e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 472439833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 4725e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 47263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 47273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 4728fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 4729aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 4730fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 4731fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 4732fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 47333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 47343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 47353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 47363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 47373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 47383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 4739004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 4740004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 4741279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 47429f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 47439f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 4744004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 4745004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 4746d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 47478137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 47488137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 47498137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 4750d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 475158f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 475258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 475358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 47544bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 47554bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 47564bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 47574bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 47584bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 475958f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 476058f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 476158f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 476258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 4763d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 4764d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 4765d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 4766d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 4767d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 4768d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 4769d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4770d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 4771d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 4772edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 4773edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 47749b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 47759b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 47769b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 4777edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 4778edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 4779edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 478039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 478139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 47823becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 478339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 478439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 47857cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 47867cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 478739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 478839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 478939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 479039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 479139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 479239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 479339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 479439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 479539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 479639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 47973becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 479839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 479939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 48007cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 48017cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 480239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 480339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 480439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 480539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 480639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 480739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 480839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 4809edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 4810acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 48118137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 48128137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 4813acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 4814acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 4815acc398c195a697795bff3245943d104eb19192b9Nate Begeman 4816acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 48178137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 4818acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 4819acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 4820acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 4821acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 4822acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 4823acc398c195a697795bff3245943d104eb19192b9Nate Begeman 48243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 4825466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 4826466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 4827466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 4828466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 48297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned SVOffset = LD->getSrcValueOffset(); 4830466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4831466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 48327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset); 4833004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 4834004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 4835004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 4836004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 48379f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 48389f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 48399f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 4840004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 4841004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 4842466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4843466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 4844466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 4845466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 4846466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng getIntPtrConstant(IncrementSize)); 48477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 48487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset); 4849466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4850466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 4851466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 4852466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 4853466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 4854466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4855466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 4856466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 4857466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (!TLI.isLittleEndian()) 4858466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 4859466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 48602e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType EVT = LD->getLoadedVT(); 4861548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 4862548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng if (VT == MVT::f64 && EVT == MVT::f32) { 4863548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 4864548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 48657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset); 4866548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 4867548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 4868548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 4869548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 4870548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 4871466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4872466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 4873466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 48747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset); 4875466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 4876466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 48777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset, EVT); 4878466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4879466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 4880466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 4881466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4882466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 4883466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 4884466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 4885466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 4886466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 4887466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 4888466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 4889466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 4890466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 4891466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 4892466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 4893466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 4894466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 4895466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 48963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 48973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 48983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 48993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 49003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 49013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 49023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 49033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 49043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 49053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 49063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 49073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 49083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 4909456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 49103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 49113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 491219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 491319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 4914456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 491519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 491619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 49173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 49183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 49199373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 49209373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 49219373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 49229373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 492319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 492419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 49259373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 49269373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 492719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 492819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 492919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 49309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 49319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 49328137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 493313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 49348137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 493513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 493613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 493713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 49383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 49393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 49403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 49418137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 4942edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 49433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 49443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 49452dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 49468137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 49478137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 49483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 49493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 49508137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 49513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 49523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 49538137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4954edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 49553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 49563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 49573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 495835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 49594c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 49604c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 49614c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 49624c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 49634c948eb373779718e5be36d7674382b52114bf65Chris Lattner 49644c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 49654c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 49664c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 49674c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 49684c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 49694c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 49704c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 49714c948eb373779718e5be36d7674382b52114bf65Chris Lattner 497235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 4973f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 4974f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 4975f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 4976f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 4977f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 4978f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 4979f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 4980f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 4981f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 4982f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 4983f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 49841a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 498513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 498613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 498719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 498819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 49897b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 49907b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 49917b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 49927b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 49937b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 49947b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 49957b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 49967b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 49971a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 49981a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 49991a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 5000f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 5001f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 500213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Tmp = ExpandBIT_CONVERT(VT, Node->getOperand(0)); 5003f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 500435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 500535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 500635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 5007f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 50088137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::READCYCLECOUNTER: 5009308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 5010308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 5011308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 50128137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = TLI.LowerOperation(Op, DAG); 50138137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner assert(Lo.Val && "Node must be custom expanded!"); 50148137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Lo.getValue(1); 5015308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 50168137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner LegalizeOp(Lo.getValue(2))); 5017f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 5018f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 50194e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 50204e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 502156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 502280a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 5023f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 5024f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5025f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 50268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 50278137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 5028f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 5029d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5030f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 5031f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 503280a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 503380a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 503407dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 503507dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 503607dffd6af673c73352150583150b242a93694f00Chris Lattner break; 503707dffd6af673c73352150583150b242a93694f00Chris Lattner } 503880a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5039d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 504056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 50414e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 504256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F32_I64; 50434e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 504456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F64_I64; 504556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 504656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 50474e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 504856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 5049d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 505056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 505180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 50528137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 50538137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 50548137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 50558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 50568137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 50578137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 50588137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 50598137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 50608137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 50618137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 506207dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 506307dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 506407dffd6af673c73352150583150b242a93694f00Chris Lattner break; 506507dffd6af673c73352150583150b242a93694f00Chris Lattner } 506680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5067d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 506856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 50694e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 507056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F32_I64; 50714e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 507256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F64_I64; 507356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 507456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 50754e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 507656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 50774e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 507805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 507950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5080348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 508150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 50828137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 508350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 508450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 508550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 508650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 508750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 508850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 508950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 509050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 509150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 509279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 509379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 509479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 509579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 509679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 509779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 509879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 509979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 510079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 510179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 510279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 510379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 510479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 510579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 510679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 510779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 510879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 510979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 5110e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5111348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5112e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 51134759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 51144759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 511505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 511605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 511705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 511805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5119348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 51204759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 51214759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 51224759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5123e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 512456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SHL_I64), Node, 512556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*left shift=unsigned*/, Hi); 5126e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 512705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5128e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 512905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 513050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5131348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 513250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 51338137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 513450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 513550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 513650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 513750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 513850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 513950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 514050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 514150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 514250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5143e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5144348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5145e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 51464759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 51474759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 514805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 514905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 515005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 515105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5152348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 51534759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 51544759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 51554759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5156e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 515756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRA_I64), Node, 515856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng true/*ashr is signed*/, Hi); 5159e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 516005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 516105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 516205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 516350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5164348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 516550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 51668137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 516750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 516850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 516950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 517050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 517150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 517250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 517350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 517450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 517550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5176e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5177348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5178e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 51794759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 51804759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 518105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 518205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 518305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 518405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5185348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 51864759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 51874759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 51884759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5189e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 519056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRL_I64), Node, 519156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*lshr is unsigned*/, Hi); 5192e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 519305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5194e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 5195edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 51968137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 51978137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 51988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 51998137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 52008137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 52018137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 52028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 52038137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 52048137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 52058137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 52068137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 52078137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 52088137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 52098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 52108137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 521179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 521279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 5213bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 5214bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 5215bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 5216bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 5217551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 521879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5219bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 522079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5221551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 522279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5223bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 522479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5225551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 522684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 52278137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 5228b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5229b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 5230b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 5231b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5232b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5233b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5234b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5235b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5236b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 5237b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5238b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5239b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 5240b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5241b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5242b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5243b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 5244b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5245b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5246b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5247b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5248b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5249b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5250b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5251b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5252b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 5253b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 5254b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5255b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5256b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5257b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5258b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5259b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 5260b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5261b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5262b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 5263b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5264b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 5265b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5266b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5267b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5268b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5269b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5270c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 52717d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 52727d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 52738829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 52748829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 52758829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 52767d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 52777d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 52787d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 52797d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 52803f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 52813f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 52823f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS || HasMULHU) { 5283c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 5284c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 5285c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 528656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman unsigned SH = MVT::getSizeInBits(RH.getValueType())-1; 52872cbba8934745fe30662f2d5a59d03545ad5212c5Nate Begeman // FIXME: Move this to the dag combiner. 528856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // MULHS implicitly sign extends its inputs. Check to see if ExpandOp 528956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // extended the sign bit of the low half through the upper half, and if so 529056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // emit a MULHS instead of the alternate sequence that is valid for any 529156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // i64 x i64 multiply. 52923f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS && 529356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is RH an extension of the sign bit of RL? 529456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOpcode() == ISD::SRA && RH.getOperand(0) == RL && 529556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOperand(1).getOpcode() == ISD::Constant && 529656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(RH.getOperand(1))->getValue() == SH && 529756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is LH an extension of the sign bit of LL? 529856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOpcode() == ISD::SRA && LH.getOperand(0) == LL && 529956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOperand(1).getOpcode() == ISD::Constant && 530056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(LH.getOperand(1))->getValue() == SH) { 5301a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5302a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5303a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 530456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 5305a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 53063f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng } else if (HasMULHU) { 5307a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5308a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5309a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner 5310a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 531156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 531256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 531356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 531456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 531556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 5316a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 531756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 5318c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 53193f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 532056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::MUL_I64), Node, 532156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 5322c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 5323c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 532456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 532556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SDIV_I64), Node, true, Hi); 532656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 532756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 532856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UDIV_I64), Node, true, Hi); 532956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 533056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 533156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SREM_I64), Node, true, Hi); 533256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 533356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 533456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UREM_I64), Node, true, Hi); 533556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 53365c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 53371a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 533856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 533956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::ADD_F32 : RTLIB::ADD_F64), 534056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 53411a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53421a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 534356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 534456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::SUB_F32 : RTLIB::SUB_F64), 534556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 53461a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53471a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 534856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 534956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::MUL_F32 : RTLIB::MUL_F64), 535056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 53511a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53521a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 535356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 535456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::DIV_F32 : RTLIB::DIV_F64), 535556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 53561a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53571a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 535856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi); 53591a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53601a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 536156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPROUND_F64_F32),Node,true,Hi); 53621a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 536398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 536498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 536598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 536656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 536798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 536856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 536956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SQRT_F32 : RTLIB::SQRT_F64; 537056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 537156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 537256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 537356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 537456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 537556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::COS_F32 : RTLIB::COS_F64; 537656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 537798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 537898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 537956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, false, Hi); 538098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 538198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 5382966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 5383966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5384966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 5385966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 5386966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5387966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5388966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 5389966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5390966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5391966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5392966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5393966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 5394966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5395966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 5396966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 5397966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5398966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5399966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 5400966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5401966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5402966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5403966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5404912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 5405912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 5406912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 5407912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 5408912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 5409912095becac923ff614d7b07728eb345ada67765Evan Cheng } 54107df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 54117df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 54127df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 54137df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng MVT::ValueType SrcVT = Node->getOperand(0).getValueType(); 541456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 54157df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) { 54167df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 541756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F32 : RTLIB::UINTTOFP_I64_F32; 54187df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 541956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F64 : RTLIB::UINTTOFP_I64_F64; 54207df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } else { 54217df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 542256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 54237df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 542456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 54257df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 54267df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 54277df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng // Promote the operand if needed. 54287df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (getTypeAction(SrcVT) == Promote) { 54297df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng SDOperand Tmp = PromoteOp(Node->getOperand(0)); 54307df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Tmp = isSigned 54317df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 54327df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng DAG.getValueType(SrcVT)) 54337df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng : DAG.getZeroExtendInReg(Tmp, SrcVT); 54347df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 54357df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 54364c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng 54374c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng const char *LibCall = TLI.getLibcallName(LC); 54384c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (LibCall) 54394c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Hi); 54404c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng else { 54414c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 54424c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Node->getOperand(0)); 54434c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 54444c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng ExpandOp(Lo, Lo, Hi); 54454c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 54467df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 54477df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 544898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 54493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 545083397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 545183397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 545283397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 545383397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 545413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 545513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 545613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 545783397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 545805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 545905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 546040030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 546105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 54623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 54633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 54647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 54657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 5466c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 5467c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 54687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && "Cannot split non-vector type!"); 5469c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 54707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElements = MVT::getVectorNumElements(Node->getValueType(0)); 5471c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 5472c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NewNumElts = NumElements/2; 54737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewEltVT = MVT::getVectorElementType(Node->getValueType(0)); 54747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorType(NewEltVT, NewNumElts); 5475c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5476c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 5477c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 5478c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 5479c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 5480c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 5481c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 5482c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 5483c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5484c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5485c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 5486e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 5487e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 548839833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 5489e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 5490e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 54917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 54927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 54937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 54947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 54957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 5496bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 5497bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_begin()+NewNumElts); 54987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT, &LoOps[0], LoOps.size()); 5499c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5500bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts, 55017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 55027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT, &HiOps[0], HiOps.size()); 5503c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5504c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 55057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 55067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 55077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 55087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 55097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 55107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 55117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 55127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 55137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT, &LoOps[0], LoOps.size()); 55146595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 55157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 55167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 55177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT, &HiOps[0], HiOps.size()); 55187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 55196595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 55206595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 55217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 55227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 55237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 55247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 55257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 55267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 55277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 55287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 55297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 55307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 55317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 55327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: { 5533c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 5534c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 5535c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 5536c7029805ef35ce9805931067b841e6af11db382eChris Lattner 55377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(Node->getOpcode(), NewVT, LL, RL); 55387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(Node->getOpcode(), NewVT, LH, RH); 5539c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5540c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 55417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 55427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 55437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LD->getChain(); 55447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LD->getBasePtr(); 55457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 55467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 55477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 55487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 55497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 55507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 55517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned IncrementSize = NewNumElts * MVT::getSizeInBits(NewEltVT)/8; 5552c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 5553c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 55547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 55557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Alignment > IncrementSize) 55567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Alignment = IncrementSize; 55577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 5558c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5559c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 5560c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 5561c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5562c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 5563c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5564c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5565c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5566c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5567c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 55687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 55697692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 55707692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 55717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(Op.getOperand(0).getValueType())) { 55727692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Lower to a store/load. FIXME: this could be improved probably. 55737692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDOperand Ptr = CreateStackTemporary(Op.getOperand(0).getValueType()); 55747692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 5575786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 55768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op.getOperand(0), Ptr, NULL, 0); 55777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman St = DAG.getLoad(NewVT, St, Ptr, NULL, 0); 55787692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(St, Lo, Hi); 55797692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } else { 55807692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // If the input is a vector type, we have to either scalarize it, pack it 55817692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // or convert it based on whether the input vector type is legal. 55827692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 55837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(0)); 55847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 55857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(NumElems > 1); 55867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman { 55877692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Split the input vector. 55887692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(Op.getOperand(0), Lo, Hi); 55897692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 55907692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Convert each of the pieces now. 55917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT, Lo); 55927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT, Hi); 55937692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 55947692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner break; 55957692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 55967692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 5597c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5598c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5599c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 560040030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 5601c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 5602c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already expanded?!?"); 5603c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5604c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5605c7029805ef35ce9805931067b841e6af11db382eChris Lattner 560689b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 560789b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 560889b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 56097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) { 56107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && 56117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "Bad ScalarizeVectorOp invocation!"); 5612c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 56137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorElementType(Op.getValueType()); 56147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::getVectorNumElements(Op.getValueType()) == 1); 5615c7029805ef35ce9805931067b841e6af11db382eChris Lattner 56167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 56177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand>::iterator I = ScalarizedNodes.find(Op); 56187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 5619c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5620c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 5621c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 56222332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 5623e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 562439833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 5625e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 56267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 56277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 56287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 56297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 56307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 56317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 56327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 56337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 56347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 56357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 56367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 56377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 56387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 56397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 56407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 56417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 56427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 5643c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 56447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 56457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 5646c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 56477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 56487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 56497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 56507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 56517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 56527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 56537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 56547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 56557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 56567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 56577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 56587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 56597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 5660c7029805ef35ce9805931067b841e6af11db382eChris Lattner 56617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 56627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 56637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, 56647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LD->isVolatile(), LD->getAlignment()); 56657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 5666c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5667c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 5668c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5669c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 56707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 56717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 56727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 56737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 56747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 56757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 5676c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 56777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 56786595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 56796595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 56806595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 56816595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 56827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 56837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 56847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand EltNum = Node->getOperand(2).getOperand(0); 56857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 56867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 56877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 56887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 56892332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 56907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 56917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 56927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 56936595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 56946595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 56957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: 56967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 5697db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 56987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 5699b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 57007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 57017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 5702b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 5703c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5704c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5705c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 5706c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 57077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 57087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 5709c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 5710c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5711c7029805ef35ce9805931067b841e6af11db382eChris Lattner 57123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 57143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 57159c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 57165e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 57175e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 57183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 57193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 5720456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 57213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 57223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 5723