LegalizeDAG.cpp revision 2eb8653157ccd318b357af74bfd517c76ef166b8
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" 1702659d23637f69f90640bfa3e66919517103c57aJim Laskey#include "llvm/Support/MathExtras.h" 183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Target/TargetLowering.h" 19e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner#include "llvm/Target/TargetData.h" 200f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner#include "llvm/Target/TargetOptions.h" 21adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include <iostream> 24033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng#include <map> 253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerclass SelectionDAGLegalize { 413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand LastCALLSEQ_END; 506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 5768a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 5868a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 5968a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Expand, // Try to expand this to other ops, otherwise use a libcall. 603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 6568a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::map<SDOperand, SDOperand> LegalizedNodes; 713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7203c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 7303c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 7403c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 7503c8546ec57523970874917854a2fb77b1ff598eChris Lattner std::map<SDOperand, SDOperand> PromotedNodes; 7603c8546ec57523970874917854a2fb77b1ff598eChris Lattner 77c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 78c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 79c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes; 813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 82c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 83c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 84c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 85c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes; 86c7029805ef35ce9805931067b841e6af11db382eChris Lattner 87c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PackedNodes - For nodes that need to be packed from MVT::Vector types to 88c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// concrete packed types, this contains the mapping of ones we have already 89c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 90c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, SDOperand> PackedNodes; 91c7029805ef35ce9805931067b841e6af11db382eChris Lattner 928afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner void AddLegalizedOperand(SDOperand From, SDOperand To) { 9369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 9469a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 9569a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 9669a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 978afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 9803c8546ec57523970874917854a2fb77b1ff598eChris Lattner void AddPromotedOperand(SDOperand From, SDOperand To) { 9903c8546ec57523970874917854a2fb77b1ff598eChris Lattner bool isNew = PromotedNodes.insert(std::make_pair(From, To)).second; 10003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 10169a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 10269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 10303c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1048afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1079c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner SelectionDAGLegalize(SelectionDAG &DAG); 1083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 1123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizeAction getTypeAction(MVT::ValueType VT) const { 11368a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 1183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isTypeLegal(MVT::ValueType VT) const { 1193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 124456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 125c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// HandleOp - Legalize, Promote, Expand or Pack the specified operand as 126c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 127c7029805ef35ce9805931067b841e6af11db382eChris Lattner void HandleOp(SDOperand Op); 128c7029805ef35ce9805931067b841e6af11db382eChris Lattner 129c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 130c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 131c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 1323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LegalizeOp(SDOperand O); 133c7029805ef35ce9805931067b841e6af11db382eChris Lattner 134c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 135c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 136c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 137c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 138c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 13903c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 141c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 142c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 143c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 144c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 145c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 146c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 147c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 148c7029805ef35ce9805931067b841e6af11db382eChris Lattner 149c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitVectorOp - Given an operand of MVT::Vector type, break it down into 150c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// two smaller values of MVT::Vector type. 151c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 152c7029805ef35ce9805931067b841e6af11db382eChris Lattner 153c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PackVectorOp - Given an operand of MVT::Vector type, convert it into the 154c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// equivalent operation that returns a packed value (e.g. MVT::V4F32). When 155c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// this is called, we know that PackedVT is the right type for the result and 156c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// we know that this type is legal for the target. 157c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand PackVectorOp(SDOperand O, MVT::ValueType PackedVT); 158c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest); 1606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 161750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 162750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 163ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CreateStackTemporary(MVT::ValueType VT); 164ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 16577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandLibCall(const char *Name, SDNode *Node, 16677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 16777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 16877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 169cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 17035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand ExpandBIT_CONVERT(MVT::ValueType DestVT, SDOperand SrcOp); 171ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 1726269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 1736269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 1746269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 1755a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 1765a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 1771618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 1781618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 17900b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 180456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 181456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 182e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 183e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 1845b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 1855b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 186b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 1873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand getIntPtrConstant(uint64_t Val) { 1883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return DAG.getConstant(Val, TLI.getPointerTy()); 1893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 1913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 1923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 193c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// getScalarizedOpcode - Return the scalar opcode that corresponds to the 194c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// specified vector opcode. 195b89175feffa7148c05d1d30a8e382b8d321edae5Chris Lattnerstatic unsigned getScalarizedOpcode(unsigned VecOp, MVT::ValueType VT) { 1965fbb5d2459a5410590f285250faa604576308a93Nate Begeman switch (VecOp) { 1975fbb5d2459a5410590f285250faa604576308a93Nate Begeman default: assert(0 && "Don't know how to scalarize this opcode!"); 1983e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VADD: return MVT::isInteger(VT) ? ISD::ADD : ISD::FADD; 1993e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VSUB: return MVT::isInteger(VT) ? ISD::SUB : ISD::FSUB; 2003e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VMUL: return MVT::isInteger(VT) ? ISD::MUL : ISD::FMUL; 2013e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VSDIV: return MVT::isInteger(VT) ? ISD::SDIV: ISD::FDIV; 2023e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VUDIV: return MVT::isInteger(VT) ? ISD::UDIV: ISD::FDIV; 2033e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VAND: return MVT::isInteger(VT) ? ISD::AND : 0; 2043e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VOR: return MVT::isInteger(VT) ? ISD::OR : 0; 2053e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VXOR: return MVT::isInteger(VT) ? ISD::XOR : 0; 2065fbb5d2459a5410590f285250faa604576308a93Nate Begeman } 2075fbb5d2459a5410590f285250faa604576308a93Nate Begeman} 2083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2099c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2109c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2119c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2126a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 21632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner/// ComputeTopDownOrdering - Add the specified node to the Order list if it has 21732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner/// not been visited yet and if all of its operands have already been visited. 21832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattnerstatic void ComputeTopDownOrdering(SDNode *N, std::vector<SDNode*> &Order, 21932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner std::map<SDNode*, unsigned> &Visited) { 22032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner if (++Visited[N] != N->getNumOperands()) 22132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner return; // Haven't visited all operands yet 22232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 22332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner Order.push_back(N); 22432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 22532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner if (N->hasOneUse()) { // Tail recurse in common case. 22632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner ComputeTopDownOrdering(*N->use_begin(), Order, Visited); 22732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner return; 22832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 22932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 23032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Now that we have N in, add anything that uses it if all of their operands 23132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // are now done. 23232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); UI != E;++UI) 23332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner ComputeTopDownOrdering(*UI, Order, Visited); 23432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 23532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 2361618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 2373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 2386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 2396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 2406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 241ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 242ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 243ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 244ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 24532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 24632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 24732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner std::map<SDNode*, unsigned> Visited; 24832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner std::vector<SDNode*> Order; 249ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 25032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 25132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // entry node) that have no operands. 25232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 25332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner E = DAG.allnodes_end(); I != E; ++I) { 254de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner if (I->getNumOperands() == 0) { 255de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner Visited[I] = 0 - 1U; 256de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner ComputeTopDownOrdering(I, Order, Visited); 257ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner } 258ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner } 259ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 260de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner assert(Order.size() == Visited.size() && 261de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner Order.size() == 262de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 26332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner "Error: DAG is cyclic!"); 26432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner Visited.clear(); 265ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 266c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 267c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 26832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 26932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 2703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 27132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 27232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 2733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 2753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 27671c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 277c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 278c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackedNodes.clear(); 2793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 28162fd269c146d9023efe32644e44cd97b88631d4fChris Lattner DAG.RemoveDeadNodes(OldRoot.Val); 2823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 2856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 2866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 2876831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 2886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 2896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 2906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 2916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 2926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 2936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 2946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 2956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 2966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 2976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 2986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 2996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 3176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3276831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 3286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 3296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 3306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 3326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 3336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 3346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 3376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 3386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 3396831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, 3406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *Dest) { 3416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 3426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 3446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 3456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 3466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 3476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 3486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 3506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 3516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 3536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 3546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 3596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest); 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (OperandsLeadToDest) return true; 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(N, 0)); 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner PromoteOp(SDOperand(N, 0)); 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: { 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand X, Y; 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner ExpandOp(SDOperand(N, 0), X, Y); 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 383c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// HandleOp - Legalize, Promote, Expand or Pack the specified operand as 384c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 385c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 386c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (getTypeAction(Op.getValueType())) { 387c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 388c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Legal: LegalizeOp(Op); break; 389c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Promote: PromoteOp(Op); break; 390c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 391c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (Op.getValueType() != MVT::Vector) { 392c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 393c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 394c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 395c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *N = Op.Val; 396c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumOps = N->getNumOperands(); 397c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = 398c7029805ef35ce9805931067b841e6af11db382eChris Lattner cast<ConstantSDNode>(N->getOperand(NumOps-2))->getValue(); 399c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(N->getOperand(NumOps-1))->getVT(); 400c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType PackedVT = getVectorType(EVT, NumElements); 401c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (PackedVT != MVT::Other && TLI.isTypeLegal(PackedVT)) { 402c7029805ef35ce9805931067b841e6af11db382eChris Lattner // In the common case, this is a legal vector type, convert it to the 403c7029805ef35ce9805931067b841e6af11db382eChris Lattner // packed operation and type now. 404c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Op, PackedVT); 405c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else if (NumElements == 1) { 406c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Otherwise, if this is a single element vector, convert it to a 407c7029805ef35ce9805931067b841e6af11db382eChris Lattner // scalar operation. 408c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Op, EVT); 409c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 410c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Otherwise, this is a multiple element vector that isn't supported. 411c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Split it in half and legalize both parts. 412c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 4134794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SplitVectorOp(Op, X, Y); 414c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 415c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 416c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 417c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 418c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 421c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// LegalizeOp - We know that the specified value has a legal type. 422c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// Recursively ensure that the operands have legal types, then return the 423c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// result. 4243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 425c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 426e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 42745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 428e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 4293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 430e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 43145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 43245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 433c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 434c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 4353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 436c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 43703c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 4383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 4393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 4403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 44145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 44245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 443e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::map<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 444e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 4453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 4469373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 4473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 448456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 449456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 451948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 452948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 453948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 454948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 455948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 456948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 4573181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 458948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 459948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 460948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 461948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 462948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 463948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 464948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 465948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 466948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner assert(TLI.isOperationLegal(Node->getValueType(0), Node->getValueType(0)) && 467948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 468948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 4693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 470d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 471d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 472d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 473d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner std::vector<SDOperand> Ops; 474d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner bool Changed = false; 475d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 476d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 477d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Changed = Changed || Node->getOperand(i) != Ops.back(); 478d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 479d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Changed) 480d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getNumValues() == 1) 481d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Result = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Ops); 482d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner else { 483d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner std::vector<MVT::ValueType> VTs(Node->value_begin(), 484d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Node->value_end()); 485d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Result = DAG.getNode(Node->getOpcode(), VTs, Ops); 486d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 487d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 488d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 489d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 490d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 491d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 492d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 4933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::cerr << "NODE: "; Node->dump(); std::cerr << "\n"; 4943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 4953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 4963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 49703c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 49869a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::ConstantPool: // Nothing to do. 4990c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 5000c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 501948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 502948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 503948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 504948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 5050c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 5060c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 5070c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 5083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 50908951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 51008951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 51108951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 512c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 51308951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 514308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 515c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 516456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 517456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 51869a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 51969a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 5207310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 521f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 522c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 5237310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 524f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 525c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 526f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 527c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 528c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 529c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 530c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 5317310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 5327310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 53313c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 53413c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 53513c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 53613c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 53713c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 538fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 539fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 540fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 541ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 542ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 543fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 544fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 545fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 546fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstantFP(0, VT); 547fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 548fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 549fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 550ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 551fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 552fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 553fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 554fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 555d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 556d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner case ISD::INTRINSIC: { 557d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner std::vector<SDOperand> Ops; 558d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 559d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 560d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 561d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner break; 562d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 56336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 56436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 56536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 56636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 56736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 56836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 56936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 57036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 571f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 572b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey MachineDebugInfo *DebugInfo = DAG.getMachineDebugInfo(); 573abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 574abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LABEL = TLI.isOperationLegal(ISD::DEBUG_LABEL, MVT::Other); 575abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 576abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (DebugInfo && (useDEBUG_LOC || useDEBUG_LABEL)) { 577abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 578e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 579abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 580e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 581063e765345fd49df0f53b807e57ada7c2ded7e16Jim Laskey unsigned SrcFile = DebugInfo->RecordSource(DirName, FName); 582abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 583abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey std::vector<SDOperand> Ops; 584abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 585abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 586abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 587abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 588abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 589abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 590abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 591abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 592abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, Ops); 593abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 594d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 595d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 596abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey unsigned ID = DebugInfo->RecordLabel(Line, Col, SrcFile); 597abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 598abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Result = DAG.getNode(ISD::DEBUG_LABEL, MVT::Other, Ops); 599abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 600e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 601e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 602e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 60336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 604e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 60536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 6069ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 6079ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 60836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner std::vector<SDOperand> Ops; 60936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 6109ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 6119ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 6129ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 6139ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 6149ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 6159ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 6169ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 6179ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 61836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 61936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 620c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 62136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 62236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 62336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 62436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 625f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 626f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 627abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 628f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 629f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 630abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 631abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 632abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 633abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 634abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 635c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 636abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 637abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 638abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 639abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 640abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case ISD::DEBUG_LABEL: 641abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid DEBUG_LABEL node!"); 642abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LABEL, MVT::Other)) { 643abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 644abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 645abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 646abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 647c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 648f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 649f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 650551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 65136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 6523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: 6533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 6543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 6553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // FIXME: Maybe we should handle things like targets that don't support full 6573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // 32-bit immediates? 6583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 6593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 6603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 6613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 6623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 6633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 6643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 6653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 6673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 6683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 6693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 6703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 6713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 6723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 6733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 6743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6753181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 6763181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 6773181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = DAG.getTargetConstantFP(CFP->getValue(), CFP->getValueType(0)); 6783181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 6793181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 6803181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 6813181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 6823181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 6833181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 6843181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 6853181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 6863181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 6873181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 6883181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 6893181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 6903181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 6913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Otherwise we need to spill the constant to memory. 6923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool Extend = false; 6933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 694456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // If a FP immediate is precise when represented as a float and if the 695456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // target can do an extending load from float to double, we put it into 696456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // the constant pool as a float, even if it's is statically typed as a 697456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // double. 6983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = CFP->getValueType(0); 6993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isDouble = VT == MVT::f64; 7003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFP *LLVMC = ConstantFP::get(isDouble ? Type::DoubleTy : 7013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Type::FloatTy, CFP->getValue()); 70299939d39c9555ebecbcd24c1b607eae52804ea37Chris Lattner if (isDouble && CFP->isExactlyValue((float)CFP->getValue()) && 70399939d39c9555ebecbcd24c1b607eae52804ea37Chris Lattner // Only do this if the target has a native EXTLOAD instruction from 70499939d39c9555ebecbcd24c1b607eae52804ea37Chris Lattner // f32. 705c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner TLI.isOperationLegal(ISD::EXTLOAD, MVT::f32)) { 7063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LLVMC = cast<ConstantFP>(ConstantExpr::getCast(LLVMC, Type::FloatTy)); 7073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner VT = MVT::f32; 7083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Extend = true; 7093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 710edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 711456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 712f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner if (Extend) { 7135f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 7145f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner CPIdx, DAG.getSrcValue(NULL), MVT::f32); 715f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner } else { 71652d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner Result = DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 71752d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner DAG.getSrcValue(NULL)); 718f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner } 7193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 7213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 722040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 723040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 724c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 725c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 726c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 727c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 728c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 729c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 730c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 731c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 732040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 733040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner std::vector<SDOperand> Ops; 734040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 735c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 736c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 737c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 738a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 739a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 740a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner 741b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 742b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 7432332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 7442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 7452332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 7462332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 7472332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 7482332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 7492332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 7502332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 751ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 752ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 753b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 7542332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 7552332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 7562332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 7572332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 7582332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 7592332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 7602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 7612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 7622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 7632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 7642332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 7652332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 7662332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 7672332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 7682332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 7692332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 7702332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 7712332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 7722332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 7732332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 7742332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 7752332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 7762332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 7772332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 7782332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 7792332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 7802332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 7812332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner assert(0 && "INSERT_VECTOR_ELT expand not supported yet!"); 7822332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 7832332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 7842332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 7852332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 786ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 787ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 788ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 789ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 790ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 791ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 792ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 793ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 7944d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 7954d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 7964d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 7974d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 7984d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 7994d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 8004d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 801ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: { 802ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the target doesn't support this, store the value to a temporary 803ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // stack slot, then EXTLOAD the vector back out. 8044d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // TODO: If a target doesn't support this, create a stack slot for the 8054d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // whole vector, then store into it, then load the whole vector. 806ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StackPtr = 807ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CreateStackTemporary(Node->getOperand(0).getValueType()); 808ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Ch = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 809ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0), StackPtr, 810ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner DAG.getSrcValue(NULL)); 811ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), Ch, StackPtr, 812ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner DAG.getSrcValue(NULL), 813ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0).getValueType()); 814ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 815ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 816ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 817ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 81887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 81987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner assert(TLI.isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 82087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner "vector shuffle should not be created if not legal!"); 82187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 82287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 82387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 82487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 82587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 82687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner if (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, Result.getValueType()) 82787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner == TargetLowering::Custom) { 82887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 82987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner if (Tmp1.Val) Result = Tmp1; 83087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 83187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 832384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 833384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 834384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 835384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 836384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 837e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner 838e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, 839e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp1.getValueType())) { 840e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner default: assert(0 && "This action is not supported yet!"); 841e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Legal: 842e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 843e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Custom: 844e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 845e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner if (Tmp3.Val) { 846e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Result = Tmp3; 847e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 848e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 849e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner // FALLTHROUGH 850e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Expand: { 851e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner // If the target doesn't support this, store the value to a temporary 852e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner // stack slot, then LOAD the scalar element back out. 853e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner SDOperand StackPtr = CreateStackTemporary(Tmp1.getValueType()); 854e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner SDOperand Ch = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 855e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp1, StackPtr, DAG.getSrcValue(NULL)); 856e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner 857e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner // Add the offset to the index. 858e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner unsigned EltSize = MVT::getSizeInBits(Result.getValueType())/8; 859e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp2 = DAG.getNode(ISD::MUL, Tmp2.getValueType(), Tmp2, 860e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner DAG.getConstant(EltSize, Tmp2.getValueType())); 861e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner StackPtr = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, StackPtr); 862e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner 863e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Result = DAG.getLoad(Result.getValueType(), Ch, StackPtr, 864e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner DAG.getSrcValue(NULL)); 865e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 866e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 867e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 868384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 869384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 8703b9fa89fcaf3eb08397c4c68b60c72fc73f8ab44Chris Lattner case ISD::VEXTRACT_VECTOR_ELT: { 871384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 872384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 873384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // lower to a store then an indexed load. 874384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = Node->getOperand(0); 875384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 876384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 877384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner SDNode *InVal = Tmp1.Val; 878384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner unsigned NumElems = cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 879384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 880384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 881384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // Figure out if there is a Packed type corresponding to this Vector 882384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // type. If so, convert to the packed type. 883384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 884384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 885384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // Turn this into a packed extract_vector_elt operation. 886384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = PackVectorOp(Tmp1, TVT); 887384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, Node->getValueType(0), 888384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1, Tmp2); 889384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 890384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner } else if (NumElems == 1) { 891384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // This must be an access of the only element. 892384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = PackVectorOp(Tmp1, EVT); 893384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 894384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner } else if (ConstantSDNode *CIdx = dyn_cast<ConstantSDNode>(Tmp2)) { 895384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner SDOperand Lo, Hi; 896384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner SplitVectorOp(Tmp1, Lo, Hi); 897384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner if (CIdx->getValue() < NumElems/2) { 898384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = Lo; 899384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner } else { 900384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = Hi; 901384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = DAG.getConstant(CIdx->getValue() - NumElems/2, 902384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2.getValueType()); 903384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner } 904384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 905384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // It's now an extract from the appropriate high or low part. 906384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = LegalizeOp(DAG.UpdateNodeOperands(Result, Tmp1, Tmp2)); 907384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner } else { 9083b9fa89fcaf3eb08397c4c68b60c72fc73f8ab44Chris Lattner // FIXME: IMPLEMENT STORE/LOAD lowering. Need alignment of stack slot!! 909384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner assert(0 && "unimp!"); 910384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner } 911384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 9123b9fa89fcaf3eb08397c4c68b60c72fc73f8ab44Chris Lattner } 91387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 9146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 9156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 9166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 9186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 9196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 9206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 9216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node); 9226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 9246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 9256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 9266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 9286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 9296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 9306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 9316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 9336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 9346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()); 9356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 9366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 9376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 9386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 9404b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 9414b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 9424b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 9434b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 9446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 9456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 9466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 9476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 9486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 9496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 9506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 9516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 9526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 9536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 9556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 9566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 9576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 9586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 95916cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 9606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 9616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 9626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 9636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 9646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner std::map<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 9656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 9666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 9676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 9686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 9696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 9716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 9723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 97370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 97470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 97570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 97670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 97770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()); 97870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 97970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 98070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 98170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 98270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 98370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 98470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 98570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()); 98670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 98770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 98870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 98970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 9906a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 9914b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 9926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 9936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 9944b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 9954b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 9964b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 9974b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 9984b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 9994b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1000a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 1001fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1002fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1003fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1004c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1005fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1006c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 10075f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 1008a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 1009a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng Node->getValueType(0))) { 1010a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1011903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1012903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1013903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1014903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1015903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 1016903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 1017903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, Node->getValueType(0)); 1018903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp1 = DAG.getNode(ISD::SUB, Node->getValueType(0), SP, Size); // Value 1019903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp2 = DAG.getCopyToReg(SP.getValue(1), SPReg, Tmp1); // Output chain 1020c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1021c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1022903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1023903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1024903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 10255f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 10265f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1027c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1028c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1029a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1030903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1031a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1032903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1033a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1034903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1035903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1036c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1037c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1038903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1039a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1040ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner case ISD::INLINEASM: 1041ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize Chain. 1042ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Tmp2 = Node->getOperand(Node->getNumOperands()-1); 1043c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp2.getValueType() == MVT::Flag) // Legalize Flag if it exists. 1044ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Tmp2 = Tmp3 = SDOperand(0, 0); 1045ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner else 1046ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Tmp3 = LegalizeOp(Tmp2); 1047ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1048ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner if (Tmp1 != Node->getOperand(0) || Tmp2 != Tmp3) { 1049ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()); 1050ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Ops[0] = Tmp1; 1051c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) Ops.back() = Tmp3; 1052c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 1053ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner } 1054ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1055ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1056c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1057ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1058ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 1059c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1060c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 10616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 10626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 10636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 10646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 10656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1066c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1067c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 1068c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner 1069c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1070c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 10716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 10726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 10736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 10746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 10756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 107647e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 107747e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 107847e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 107947e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 108047e9223e06390897c3834f8c527001df392570ffChris Lattner break; 108147e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 108247e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 108347e9223e06390897c3834f8c527001df392570ffChris Lattner break; 108447e9223e06390897c3834f8c527001df392570ffChris Lattner } 1085456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1086456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1087c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 10887cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 10897cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 10907cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1091456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1092456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1093456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1094456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1095456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 10967cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 10977cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 10987cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 10997cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 11007cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 11017cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 11027cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 11037cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 1104550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // Make sure the condition is either zero or one. It may have been 1105550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // promoted from something else. 110619c5c4cca9edd0e1e2961879d3da164325af6d63Chris Lattner unsigned NumBits = MVT::getSizeInBits(Tmp2.getValueType()); 110719c5c4cca9edd0e1e2961879d3da164325af6d63Chris Lattner if (!TLI.MaskedValueIsZero(Tmp2, (~0ULL >> (64-NumBits))^1)) 110819c5c4cca9edd0e1e2961879d3da164325af6d63Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 1109550b1e59c4eb5db020766012b1406fc56833251dChris Lattner 11107cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 11117cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 11127cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 11137cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 11147cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 11157cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 11167cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 11177cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 11187cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 11197cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 11206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 11216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 11226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 11236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 11246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1125750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1126750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1127750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1128181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1129750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1130750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1131750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1132750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1133750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1134750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1135750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1136750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1137750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1138750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1139750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1140750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1141456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1142181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1143181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1144456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1145456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1146456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1147456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1148181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 11497cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1150c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1151f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 11523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 11533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 11542d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1155f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1156c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1157c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(0); 1158c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = Result.getValue(1); 1159456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1160f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1161f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng default: assert(0 && "This action is not supported yet!"); 1162c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner case TargetLowering::Legal: break; 1163456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1164c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = TLI.LowerOperation(Tmp2, DAG); 1165456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 1166c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp1); 1167c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Tmp1.getValue(1)); 1168f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1169c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1170f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1171c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Since loads produce two values, make sure to remember that we 1172c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // legalized both of them. 1173c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp2); 1174c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp3); 1175c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp3 : Tmp2; 1176f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 11770f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::EXTLOAD: 11780f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::SEXTLOAD: 117901ff7216dd7829d4094754086baf28aa2d7149acChris Lattner case ISD::ZEXTLOAD: { 11800f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 11810f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 11820f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 11835f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner MVT::ValueType SrcVT = cast<VTSDNode>(Node->getOperand(3))->getVT(); 118401ff7216dd7829d4094754086baf28aa2d7149acChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), SrcVT)) { 118501ff7216dd7829d4094754086baf28aa2d7149acChris Lattner default: assert(0 && "This action is not supported yet!"); 11861c51c6ac13b5e68b099605021784c7f552dcce3cChris Lattner case TargetLowering::Promote: 11871c51c6ac13b5e68b099605021784c7f552dcce3cChris Lattner assert(SrcVT == MVT::i1 && "Can only promote EXTLOAD from i1 -> i8!"); 1188c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2), 1189c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner DAG.getValueType(MVT::i8)); 1190c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1191c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1192c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1193456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1194456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1195456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 119601ff7216dd7829d4094754086baf28aa2d7149acChris Lattner case TargetLowering::Legal: 1197c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2), 1198c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3)); 1199c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1200c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1201456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1202456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1203456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp3 = TLI.LowerOperation(Tmp3, DAG); 1204456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp3.Val) { 1205c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1206c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1207456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1208456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1209c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 121001ff7216dd7829d4094754086baf28aa2d7149acChris Lattner case TargetLowering::Expand: 121169a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 12129d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 12139d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, Node->getOperand(2)); 121431559081a4285f4b7282e765aea4ec8a8e1d396cAndrew Lenharth Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1215c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1216c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Load.getValue(1)); 1217c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 12189d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 121901ff7216dd7829d4094754086baf28aa2d7149acChris Lattner assert(Node->getOpcode() != ISD::EXTLOAD && 122001ff7216dd7829d4094754086baf28aa2d7149acChris Lattner "EXTLOAD should always be supported!"); 122101ff7216dd7829d4094754086baf28aa2d7149acChris Lattner // Turn the unsupported load into an EXTLOAD followed by an explicit 122201ff7216dd7829d4094754086baf28aa2d7149acChris Lattner // zero/sign extend inreg. 12235f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 12245f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Tmp1, Tmp2, Node->getOperand(2), SrcVT); 122523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner SDOperand ValRes; 122623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SEXTLOAD) 122723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 122815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, DAG.getValueType(SrcVT)); 122923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner else 123023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1231c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1232c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1233c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 123401ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 1235c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Since loads produce two values, make sure to remember that we legalized 1236c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // both of them. 1237c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1238c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1239c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 124001ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 12415dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 12425dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 12435dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1244c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 12455dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 12465dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 12475dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 12485dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 12495dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 12505dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 12515dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 12525dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 12535dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 12545dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 12555dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 12565dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 12575dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 12585dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 12595dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 12605dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 12615dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 12625dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 12635dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 12645dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 12655dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 12665dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 12673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 12685dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 12693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 12703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 12713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1272edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1273c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1274d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 12757310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1276d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1277f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1278c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 12797310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1280f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1281c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1282f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1283c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1284c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1285c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1286c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 12877310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 12887310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 12897310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 12907310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1291c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 12927310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1293c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 12947310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 12953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 12963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 12973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 12983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 12996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 13016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 13026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 13036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 13046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 13063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 2: // ret val 13073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 13083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 13093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1310c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 13113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 13133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 13143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), Lo, Hi); 13153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Hi); 1316edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 13173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 13183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 13198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 1320c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1321c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 13228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 13233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 13243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1326c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 13273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 13293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::vector<SDOperand> NewValues; 13303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 13313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (unsigned i = 1, e = Node->getNumOperands(); i != e; ++i) 13323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 13333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 13344e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 13353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 13373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 13383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 13393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 13403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Hi); 1341edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 13423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 13433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 13448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 13453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1346c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1347c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 1348c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, NewValues); 1349c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 1350c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, NewValues); 13513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 13533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 135417c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 13556862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 13566862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 13576862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 13586862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 13596862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 13606862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 13616862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 13626862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 13636862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 136417c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 13653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1366f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 13673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); // Legalize the pointer. 13693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 13705d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 1371456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 137206ac6ab938cf54596202de851da4b20aa61fe64eChris Lattner // FIXME: move this to the DAG Combiner! 137303c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (ConstantFPSDNode *CFP =dyn_cast<ConstantFPSDNode>(Node->getOperand(1))){ 13745d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner if (CFP->getValueType(0) == MVT::f32) { 1375c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = DAG.getConstant(FloatToBits(CFP->getValue()), MVT::i32); 13765d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner } else { 13775d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner assert(CFP->getValueType(0) == MVT::f64 && "Unknown FP type!"); 1378c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = DAG.getConstant(DoubleToBits(CFP->getValue()), MVT::i64); 13795d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner } 1380c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::STORE, MVT::Other, Tmp1, Tmp3, Tmp2, 1381c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3)); 13826a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner break; 13835d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner } 13845d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner 13853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 13863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: { 1387c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(1)); 1388c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 1389c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3)); 1390f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng 1391c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner MVT::ValueType VT = Tmp3.getValueType(); 1392456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (TLI.getOperationAction(ISD::STORE, VT)) { 1393456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "This action is not supported yet!"); 1394456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1395456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1396456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1397456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1398456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1399f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 14003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 14013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 14023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 140303c8546ec57523970874917854a2fb77b1ff598eChris Lattner // Truncate the value and store the result. 140403c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(1)); 140503c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Tmp1, Tmp3, Tmp2, 14062d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth Node->getOperand(3), 14079fadb4c1c0a6d223aa468f9f72f8c2562dc66839Chris Lattner DAG.getValueType(Node->getOperand(1).getValueType())); 140803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 140903c8546ec57523970874917854a2fb77b1ff598eChris Lattner 14103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: 1411c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned IncrementSize = 0; 14123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 1413c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1414ab48be377298bd509427a29e174cf4e305138819Nate Begeman // If this is a vector type, then we have to calculate the increment as 1415ab48be377298bd509427a29e174cf4e305138819Nate Begeman // the product of the element size in bytes, and the number of elements 1416ab48be377298bd509427a29e174cf4e305138819Nate Begeman // in the high half of the vector. 1417c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (Node->getOperand(1).getValueType() == MVT::Vector) { 1418c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *InVal = Node->getOperand(1).Val; 1419c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElems = 1420c7029805ef35ce9805931067b841e6af11db382eChris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 1421c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 1422c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1423c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Figure out if there is a Packed type corresponding to this Vector 1424c7029805ef35ce9805931067b841e6af11db382eChris Lattner // type. If so, convert to the packed type. 1425c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 1426c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 1427c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Turn this into a normal store of the packed type. 1428c7029805ef35ce9805931067b841e6af11db382eChris Lattner Tmp3 = PackVectorOp(Node->getOperand(1), TVT); 1429c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 1430c7029805ef35ce9805931067b841e6af11db382eChris Lattner Node->getOperand(3)); 1431c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 1432c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else if (NumElems == 1) { 1433c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Turn this into a normal store of the scalar type. 1434c7029805ef35ce9805931067b841e6af11db382eChris Lattner Tmp3 = PackVectorOp(Node->getOperand(1), EVT); 1435c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 1436c7029805ef35ce9805931067b841e6af11db382eChris Lattner Node->getOperand(3)); 1437c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 1438c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 1439c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), Lo, Hi); 1440c7029805ef35ce9805931067b841e6af11db382eChris Lattner IncrementSize = NumElems/2 * MVT::getSizeInBits(EVT)/8; 1441c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 1442ab48be377298bd509427a29e174cf4e305138819Nate Begeman } else { 1443c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Node->getOperand(1), Lo, Hi); 1444ab48be377298bd509427a29e174cf4e305138819Nate Begeman IncrementSize = MVT::getSizeInBits(Hi.getValueType())/8; 1445ab48be377298bd509427a29e174cf4e305138819Nate Begeman } 1446c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1447c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (!TLI.isLittleEndian()) 1448c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::swap(Lo, Hi); 1449c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1450c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getNode(ISD::STORE, MVT::Other, Tmp1, Lo, Tmp2, 1451c7029805ef35ce9805931067b841e6af11db382eChris Lattner Node->getOperand(3)); 14523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 14533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner getIntPtrConstant(IncrementSize)); 14543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(isTypeLegal(Tmp2.getValueType()) && 14553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Pointers must be legal!"); 1456456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FIXME: This sets the srcvalue of both halves to be the same, which is 1457456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // wrong. 1458edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getNode(ISD::STORE, MVT::Other, Tmp1, Hi, Tmp2, 1459edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Node->getOperand(3)); 1460ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 1461ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner break; 14623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 14633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1464f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 146595762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 146695762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1467c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 146895762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 1469140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 1470140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1471c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1472c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1473c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1474456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1475140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 1476140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1477456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1478456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1479c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1480c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 1481c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1482c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1483140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1484456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1485140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 14864f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 14874f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 14884f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 1489c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 14904f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 1491c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 14924f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 1493c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 1494c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 14954f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1496456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1497140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1498456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1499456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 1500456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 1501c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1502c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1503c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1504456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1505140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 1506140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1507140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 1508c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1509140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 1510140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 1511140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1512456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1513456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1514456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1515456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1516140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1517140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 15184f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 15194f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 15204f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 15214f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 15224f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 15234f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 15244f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1525140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1526140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1527140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1528140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 152951b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 153051b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 1531c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 153249c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 153349c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 153449c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 1535c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 153649c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1537c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 1538f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 1539f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::TRUNCSTORE: { 15400f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15410f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the pointer. 15420f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 1543456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(isTypeLegal(Node->getOperand(1).getValueType()) && 1544456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner "Cannot handle illegal TRUNCSTORE yet!"); 1545456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1546456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1547456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // The only promote case we handle is TRUNCSTORE:i1 X into 1548456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // -> TRUNCSTORE:i8 (and X, 1) 1549456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (cast<VTSDNode>(Node->getOperand(4))->getVT() == MVT::i1 && 1550456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TLI.getOperationAction(ISD::TRUNCSTORE, MVT::i1) == 1551456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TargetLowering::Promote) { 1552456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Promote the bool to a mask then store. 1553456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = DAG.getNode(ISD::AND, Tmp2.getValueType(), Tmp2, 1554456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(1, Tmp2.getValueType())); 1555456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Tmp1, Tmp2, Tmp3, 1556456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(3), DAG.getValueType(MVT::i8)); 1557456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1558456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } else if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1) || 1559456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp3 != Node->getOperand(2)) { 1560c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 1561c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 1562456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1563456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1564456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType StVT = cast<VTSDNode>(Result.Val->getOperand(4))->getVT(); 1565456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (TLI.getOperationAction(Result.Val->getOpcode(), StVT)) { 1566456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "This action is not supported yet!"); 1567456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1568456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1569456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1570456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 15710f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 15720f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner } 15730f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 1574f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 15752ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 157647e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 157747e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 157847e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 157947e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 158047e9223e06390897c3834f8c527001df392570ffChris Lattner break; 158147e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 158247e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 158347e9223e06390897c3834f8c527001df392570ffChris Lattner break; 158447e9223e06390897c3834f8c527001df392570ffChris Lattner } 15853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 15862ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 158755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 1588c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1589456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1590b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 159155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 1592456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1593456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 1594456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1595456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1596456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1597456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 15989373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 15999373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 16009373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 16019373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 16029373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 16039373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 1604550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // Make sure the condition is either zero or one. It may have been 1605550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // promoted from something else. 16060e753d617be1ff6a9ac0f894da9d2544e2489850Chris Lattner unsigned NumBits = MVT::getSizeInBits(Tmp1.getValueType()); 16070e753d617be1ff6a9ac0f894da9d2544e2489850Chris Lattner if (!TLI.MaskedValueIsZero(Tmp1, (~0ULL >> (64-NumBits))^1)) 16080e753d617be1ff6a9ac0f894da9d2544e2489850Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 16099373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 16109373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 16119373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 16129373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 161355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 161455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 161555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 161655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 161755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 161855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner if (MVT::isInteger(Tmp2.getValueType())) { 1619456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 1620456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 162155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 1622456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 1623456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 162455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 162555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 162655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 162755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 162855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 162955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 163055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 163155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 163255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 163355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 16343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1635750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 1636750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 1637750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 16389373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 16399373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 1640750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 16419373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 1642750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 1643750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1644750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1645750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1646750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 1648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 1649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 1650750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1651750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 1652750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1653750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 1654750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 1655750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 1656750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 1657750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 1658750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 1659750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 16609373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 16619373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 16629373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 1663750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 16643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 1665750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 1666750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 1667750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 1668750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 1669750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1670750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 1671750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 1672750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 1673750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 1674750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 16753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1677b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 167873e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 1679456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 1680456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1681456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1682456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 1683456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 1684c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1685456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1686456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1687456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp3.Val) Result = Tmp3; 1688456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1689b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 1690ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 1691ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 1692ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 1693ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 1694ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 1695ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType OldVT = NewInTy; 1696ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 1697ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 1698ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 1699ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 1700ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 1701ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 1702ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 1703ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 1704ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 1705ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 1706ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 17071ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 1708ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 1709ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 1710ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 1711ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 1712ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 1713ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 1714ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 1715ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 1716c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1717c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1718c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1719433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 17205e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 1721ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 1722b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 1723b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 1724b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 1725b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 1726b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 1727b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 1728b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Node->getOperand(2)); 1729b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 1730b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 17313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1732e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 1733e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 1734e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 1735deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 1736e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 1737e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 1738e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 1739e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 1740e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 1741e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 1742deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1743e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1744e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 1745deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 1746e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1747e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 1748e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 1749edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 1750e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 1751272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 1752272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 1753272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 17546814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 17556814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 17566814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 17576814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner ExpandOp(Node->getOperand(3), HiPart, Tmp4); 17586814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 17596814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 1760e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 1761e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 1762e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1763e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 1764e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 1765272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 1766272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 1767272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 1768272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 1769272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 1770272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 1771272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 1772272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 1773272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 1774272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 1775e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 1776e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1777e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 177855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 177955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 178055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 1781456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1782456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1783456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 178455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 1785c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, Tmp5); 1786456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1787456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1788456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1789456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 179055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 179155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 1792e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 1793e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 1794e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 1795e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner const Type *IntPtrTy = TLI.getTargetData().getIntPtrType(); 1796e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::vector<std::pair<SDOperand, const Type*> > Args; 1797e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 17983bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 1799e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 1800e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp2, IntPtrTy)); 1801dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 1802dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 1803dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 1804dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 1805dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 1806dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 1807e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp3, Type::IntTy)); 1808e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp4, IntPtrTy)); 1809e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 1810e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 1811e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 1812e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 1813e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp2, IntPtrTy)); 1814e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp3, IntPtrTy)); 1815e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp4, IntPtrTy)); 1816e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 1817e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 1818e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 1819e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 182045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 1821e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 1822adf6a965a321372c640845407195594835921eb4Chris Lattner TLI.LowerCallTo(Tmp1, Type::VoidTy, false, CallingConv::C, false, 1823e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 1824456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 182555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 182655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 1827e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 1828e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 1829e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 183052d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 18315b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 18325b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 18335b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 183484f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner std::vector<SDOperand> Ops; 183584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 183684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 183784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 183884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 183984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 1840c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 1841c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 18422c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 184305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 184405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 184505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 1846456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1847456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1848456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1849456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 1850456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 185105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 1852456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 185305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 185405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 185512f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 185605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 1857269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 185805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 185905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 186005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 186105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 186205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 18632c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 18642c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 18652c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 18662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 18672c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 186884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 18692c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 18702c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 18713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 18723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 18733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 1874c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 1875c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 18763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 18773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 18783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 18793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 18803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 188103c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 188203c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 188303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 188401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 188501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 188601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 188701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 18883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 1889f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 1890f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 1891f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 1892f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 1893f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 1894f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 1895f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 1896f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 1897f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 1898c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1899c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1900456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1901e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1902456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Operation not supported"); 1903456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1904456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1905456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1906456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 190757030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 1908e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 19093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1910a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 1911a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 1912a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 1913a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 1914a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 1915a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 1916a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 1917a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 1918a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 1919a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 1920a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 1921a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 1922a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 1923a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1924a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 1925a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1926a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 1927a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 1928a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1929a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 19308f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 1931a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 1932a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Expand: 19338f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // If this target supports fabs/fneg natively, do this efficiently. 19348f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner if (TLI.isOperationLegal(ISD::FABS, Tmp1.getValueType()) && 19358f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner TLI.isOperationLegal(ISD::FNEG, Tmp1.getValueType())) { 19368f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 19378f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 19388f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 19398f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 19408f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 19418f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 19428f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 19438f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 19448f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 19458f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 19468f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 19478f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 19488f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 19498f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 19508f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 19518f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 19528f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 19538f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 19548f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 19558f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 19568f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // copysign -> copysignf/copysign libcall. 1957a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner const char *FnName; 1958a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Node->getValueType(0) == MVT::f32) { 1959a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner FnName = "copysignf"; 1960a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp2.getValueType() != MVT::f32) // Force operands to match type. 1961a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, 1962a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner DAG.getNode(ISD::FP_ROUND, MVT::f32, Tmp2)); 1963a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } else { 1964a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner FnName = "copysign"; 1965a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp2.getValueType() != MVT::f64) // Force operands to match type. 1966a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, 1967a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner DAG.getNode(ISD::FP_EXTEND, MVT::f64, Tmp2)); 1968a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 1969a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner SDOperand Dummy; 1970a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 1971a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 1972a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 1973a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 1974a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 1975551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 1976551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 1977551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 1978551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 1979551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1980551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 1981551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 1982551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1983551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1984551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 1985edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1986551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 1987551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 1988551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 1989551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 1990551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 1991551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1992551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 1993551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 1994551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1995551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1996551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 1997551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 1998419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 1999419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 2000419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 2001419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 2002419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 2003419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 2004456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2005456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2006456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 2007419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 2008419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 2009419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 2010419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2011419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 2012419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 2013419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 2014419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 2015419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 2016419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 2017456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 2018419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2019419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2020419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2021419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2022419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 2023c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 2024c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 202501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2026c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2027c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2028456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2029c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2030456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 2031456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2032456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2033456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 203457030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 2035c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2036456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2037456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2038456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2039456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 204057030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 20414c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner case TargetLowering::Expand: 20424c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner if (MVT::isInteger(Node->getValueType(0))) { 2043456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // X % Y -> X-X/Y*Y 20444c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner MVT::ValueType VT = Node->getValueType(0); 2045456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner unsigned Opc = Node->getOpcode() == ISD::UREM ? ISD::UDIV : ISD::SDIV; 20464c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner Result = DAG.getNode(Opc, VT, Tmp1, Tmp2); 20474c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 20484c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 20494c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner } else { 20504c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner // Floating point mod -> fmod libcall. 20514c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner const char *FnName = Node->getValueType(0) == MVT::f32 ? "fmodf":"fmod"; 20524c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner SDOperand Dummy; 20539c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 2054c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2055c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2056c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2057c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2058acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 2059acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2060acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2061acc398c195a697795bff3245943d104eb19192b9Nate Begeman 20625c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2063acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 2064acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2065456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2066456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2067456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2068acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2069c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2070c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 2071456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 2072456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2073456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2074456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 2075456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 2076456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 2077456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 2078456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2079456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2080acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2081acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 2082acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 2083acc398c195a697795bff3245943d104eb19192b9Nate Begeman Node->getOperand(2)); 2084acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 2085acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 2086acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 2087acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 2088acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 2089acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::STORE, MVT::Other, VAList.getValue(1), Tmp3, Tmp2, 2090acc398c195a697795bff3245943d104eb19192b9Nate Begeman Node->getOperand(2)); 2091acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 2092acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = DAG.getLoad(VT, Tmp3, VAList, DAG.getSrcValue(0)); 2093456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 2094acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 2095acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2096acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2097acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2098acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 2099acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 2100acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 2101456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 2102456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 2103acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2104acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2105acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 2106acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2107acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 2108acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 2109acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2110acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 2111acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2112456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2113456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2114456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2115acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2116c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 2117c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 2118456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2119456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2120456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2121456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2122acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2123acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2124acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 2125acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 2126acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, Node->getOperand(3)); 2127acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = DAG.getNode(ISD::STORE, MVT::Other, Tmp4.getValue(1), Tmp4, Tmp2, 2128acc398c195a697795bff3245943d104eb19192b9Nate Begeman Node->getOperand(4)); 2129acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2130acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2131acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2132acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2133acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 2134acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2135acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2136acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2137acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 2138acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2139456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2140456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2141456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2142acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2143c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2144456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2145456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 2146456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2147456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2148acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2149acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2150acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 2151acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2152acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2153acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2154acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2155acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 2156acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2157acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2158acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2159c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2160c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2161acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 2162acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2163456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2164456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2165456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2166456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2167acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2168acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2169acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2170acc398c195a697795bff3245943d104eb19192b9Nate Begeman 217135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 217235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 217335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 217435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2175456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2176456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 2177456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner "Cannot handle this yet!"); 2178c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 217935ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 218035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 2181d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2182d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2183d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2184456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2185456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 2186456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2187c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2188456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2189456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 2190456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 2191456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2192456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner unsigned DiffBits = getSizeInBits(NVT) - getSizeInBits(OVT); 2193456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2194456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2195456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2196456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2197456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 2198456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2199456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2200456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 2201456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 2202456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2203d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 2204d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2205d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 2206691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2207691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2208691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2209691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2210691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2211456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: assert(0 && "Cannot custom handle this yet!"); 2212691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 2213c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2214691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2215691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 2216691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 2217691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2218edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 2219edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 2220691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2221691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 2222691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 2223456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2224691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2225691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 2226691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2227691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2228691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 22297cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 22307cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner DAG.getConstant(getSizeInBits(NVT), NVT), 22317cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 223200b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2233691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth DAG.getConstant(getSizeInBits(OVT),NVT), Tmp1); 2234691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2235691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2236456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 223700b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 223800b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen DAG.getConstant(getSizeInBits(NVT) - 2239691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth getSizeInBits(OVT), NVT)); 2240691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2241691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2242691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2243691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2244691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 2245456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 2246691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2247691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2248691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 224900b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 22502c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 22512c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 22522c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 2253da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 2254da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 2255da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 22562c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 22572c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2258456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2259456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 226059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 226159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 22622c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 2263c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 226459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 226559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 226659ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 226759ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 22682c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 22692c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 2270456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2271456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 2272456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 22732c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 22742c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 2275456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 2276f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2277f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 22784af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 22794af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 22804af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 22817cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 22824af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 22834af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 2284f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2285f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 2286f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 2287f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 2288f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 2289f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2290f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner const char *FnName = 0; 2291f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 2292f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: FnName = VT == MVT::f32 ? "sqrtf" : "sqrt"; break; 2293f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: FnName = VT == MVT::f32 ? "sinf" : "sin"; break; 2294f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: FnName = VT == MVT::f32 ? "cosf" : "cos"; break; 2295f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 2296f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 22972ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 22989c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 2299f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2300f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 23012c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 23022c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 23032c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 23042c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 230535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 230635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 230767993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 230835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 230967993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 231035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 231135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 231235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 231335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 231435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 231535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 231635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 231735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2318c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 231935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 232035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 232135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 232235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 2323d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner case ISD::VBIT_CONVERT: { 2324d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner assert(Op.getOperand(0).getValueType() == MVT::Vector && 2325d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner "Can only have VBIT_CONVERT where input or output is MVT::Vector!"); 2326d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 2327d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // The input has to be a vector type, we have to either scalarize it, pack 2328d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // it, or convert it based on whether the input vector type is legal. 2329d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 2330d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner unsigned NumElems = 2331d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 2332d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 2333d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 2334d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 2335d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // type. If so, convert to the packed type. 2336d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 2337d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 2338d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Turn this into a bit convert of the packed input. 2339d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 2340d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner PackVectorOp(Node->getOperand(0), TVT)); 2341d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner break; 2342d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } else if (NumElems == 1) { 2343d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Turn this into a bit convert of the scalar input. 2344d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 2345d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner PackVectorOp(Node->getOperand(0), EVT)); 2346d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner break; 2347d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } else { 2348d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // FIXME: UNIMP! Store then reload 2349d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner assert(0 && "Cast from unsupported vector type not implemented yet!"); 2350d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 2351d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 2352d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 23532c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 2354fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 2355fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 2356fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 2357fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2358fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2359d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 2360fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 2361fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 2362456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2363456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2364456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2365456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2366456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2367c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2368456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2369456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2370456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2371456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2372456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2373fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 23746269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 23756269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 23766269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 2377456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2378fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 2379fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 2380fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 2381fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 2382fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 23835b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 2384fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2385fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2386fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 2387fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 2388fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2389fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2390c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2391fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 2392c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 2393c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 2394fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 2395c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 2396c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 2397fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2398c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2399c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 2400fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2401fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2402fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2403fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2404fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 2405fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2406fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2407fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2408c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2409fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2410fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2411fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 2412fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 2413fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 2414fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 2415fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 2416fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2417fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2418fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 2419fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 2420fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2421fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2422fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2423d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 2424fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 2425fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 2426fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2427fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2428f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2429f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 24301618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 24311618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 2432456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2433456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2434456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2435456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2436c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2437456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2438456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2439456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2440456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2441456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2442456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2443456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 2444456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 2445456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 24461618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 2447d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 2448d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 2449d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 2450d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 2451d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman unsigned ShiftAmt = MVT::getSizeInBits(Node->getValueType(0))-1; 2452d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getConstantFP((double)(1ULL << ShiftAmt), VT); 2453d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 2454d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 2455d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 2456d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 245701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 2458d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 2459d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 2460d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 2461456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 2462456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2463d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 2464d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 2465d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 2466d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 24671618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 2468fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2469fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2470fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner assert(0 && "Shouldn't need to expand other operators here!"); 2471fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2472c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2473c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 2474c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 2475fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2476fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2477fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2478d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 247913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 24803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 24813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 248203c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_EXTEND: 248303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_ROUND: 24843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2485456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 24863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 24873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2488c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 24893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 249003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 249103c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 249213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 2493c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2494c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 249513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 24961713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 24971713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 249813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 249923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 250023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 250103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 250203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 25031713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 250413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 25051713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 250615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 250715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 25081713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 250903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 25101713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 25111713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 25121713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 25131713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 25141713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 251503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 2516f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 2517f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 2518f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 251903c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 25203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 25213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 25220f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 252323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 25240f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 252515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 252645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 252745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 252845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 252955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 253055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 253155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2532c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 253355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 253455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 253545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 253623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 253745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 253845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 253945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 254045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 254127ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 254245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 254345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 254445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 254545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 254645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 254745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // The only way we can lower this is to turn it into a STORETRUNC, 254845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 254945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 255045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 255145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 255245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 255345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 255445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned TySize = (unsigned)TLI.getTargetData().getTypeSize(Ty); 255545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned Align = TLI.getTargetData().getTypeAlignment(Ty); 255645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 2557edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 255845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MF.getFrameInfo()->CreateStackObject((unsigned)TySize, Align); 255945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 256045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, DAG.getEntryNode(), 256152d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner Node->getOperand(0), StackSlot, 25629fadb4c1c0a6d223aa468f9f72f8c2562dc66839Chris Lattner DAG.getSrcValue(NULL), DAG.getValueType(ExtraVT)); 25635f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 25645f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result, StackSlot, DAG.getSrcValue(NULL), 25655f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner ExtraVT); 256645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 256745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 256845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 256955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 257045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 25710f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 25723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 257345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 2574456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2575456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 2576456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 2577456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 25783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 257945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 258045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 258145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 25823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 25833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 25843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 25858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 25868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 25878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 25888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 258903c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 259003c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 259171c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 259203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 259303c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 259403c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 259503c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 259603c8546ec57523970874917854a2fb77b1ff598eChris Lattner 259703c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 259803c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 259903c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 260003c8546ec57523970874917854a2fb77b1ff598eChris Lattner 26016fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner std::map<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 26026fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 260345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 260403c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 2605d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 2606d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 260703c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 260803c8546ec57523970874917854a2fb77b1ff598eChris Lattner std::cerr << "NODE: "; Node->dump(); std::cerr << "\n"; 260903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 261003c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 2611fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 2612fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 2613fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 261403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 2615ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 2616ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 2617ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 2618ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 261903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 262003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 262103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 262203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 262303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 262403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 2625ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 262682fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 2627c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 26287cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 26297cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 263082fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 263103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 263203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 263303c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 263403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 263503c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 263603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 263703c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 263803c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 263903c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 264003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 2641e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 2642e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 2643e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 2644e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 2645e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 264603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 264779e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 264879e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 2649e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 265003c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 265103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 26528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 26538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 265413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 26558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 26568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 26578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 26588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 2659456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 26608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 26628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 26638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 26648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 26658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 2666595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 266715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 266813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 266923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 267023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 26718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 26738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 267435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 267535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 267635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 267735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 267835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 26798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 26808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 26818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 26828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 26838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 26848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 26858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 26868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 2687456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 268815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 26898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 26918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 26938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 26948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 26958b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 26968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 269777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 2698456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 26998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 27008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 27018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 27028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 27038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 27048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 270515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 270615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 27078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 270823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 270923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 271077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 271177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 27128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 27138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 271477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 271577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 271677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 271777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 271815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 271915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 272077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 27218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 27228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 27238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 27245e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 27255e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 27265e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 27275e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 27285e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 27298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 27308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 27318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 27328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 2733456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 27348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 27358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 27368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 27378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 27388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 27398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 27408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 27418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "not implemented"); 27428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 2743d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 2744d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 2745d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 2746d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 2747d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 2748d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 2749c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 2750b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 2751b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 2752d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 2753d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 2754d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 2755d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 27568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 27578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 27582c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 27592c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 27602c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 27612c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 27622c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 27632c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 27642c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 27652c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 27662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 27672c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 2768da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 2769da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 2770da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 2771da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2772da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 2773da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 2774456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 277515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 277615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 2777da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 2778da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 277903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 278003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 278103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 27820f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 27838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 27840f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 27850f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 278601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 27870f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 27880f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 27890f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 27900f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 27910f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 279201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 279301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 279401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 279501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 279601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 279701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 279801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 279901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 280001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 280101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 280201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 280301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 28048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 28058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 280601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 280715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 280815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 28090f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 28100f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 28118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 28128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 28138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 28148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 28158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 28168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 281715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 281815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 281915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 282015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 28218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 28228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 28238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 28248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 28258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 282615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 282715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 28288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 282901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 283001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2831a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 283201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 283301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 283401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 283501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 283601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 283701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 2838a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 283901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 284001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 284101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 28428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 28438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 28448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 28458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 28468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 28478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 28488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 284923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 285023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 28518b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 28528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 28538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 28548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 28558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2856456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 28578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 28588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 28598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 28608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 286115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 286215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 2863456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 28648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 28658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 28668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 28678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 286823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 2869456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 28708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 28710aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 28720aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 2873456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 2874456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 28750aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 28760aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 28770aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 28780aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 28790aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 28800aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Node->getOperand(2)); 28810aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 28820aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 28830aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 28840aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 28850aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 28860aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::STORE, MVT::Other, VAList.getValue(1), Tmp3, Tmp2, 28870aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Node->getOperand(2)); 28880aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 28890aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, 28900aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getSrcValue(0), VT); 28910aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 28920aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 2893456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 28940aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 28950aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 289603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::LOAD: 2897456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Node->getOperand(0), 2898456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Node->getOperand(2), VT); 289903c8546ec57523970874917854a2fb77b1ff598eChris Lattner // Remember that we legalized the chain. 2900456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 290103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 29024c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner case ISD::SEXTLOAD: 29034c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner case ISD::ZEXTLOAD: 29044c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner case ISD::EXTLOAD: 2905456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getExtLoad(Node->getOpcode(), NVT, Node->getOperand(0), 2906456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Node->getOperand(2), 29078136cdae60eaa30cea91f288f25564a417b19a84Chris Lattner cast<VTSDNode>(Node->getOperand(3))->getVT()); 29084c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 2909456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 29104c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 291103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 291203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 291303c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 2914456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 291503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 29169373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 29179373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 29189373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 29199373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 2920456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 29219373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2922d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2923d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 2924d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2925d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2926d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2927d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman DAG.getConstant(getSizeInBits(NVT) - getSizeInBits(VT), 2928d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 2929d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2930fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 2931fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 2932fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 2933456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 2934456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 2935fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 2936fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 2937456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 2938fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 2939fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 2940fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 2941fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 2942456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 2943d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 29447cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner DAG.getConstant(getSizeInBits(NVT), NVT), ISD::SETEQ); 294500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2946456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(getSizeInBits(VT), NVT), Tmp1); 2947fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 2948fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 2949fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 295000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 295100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen DAG.getConstant(getSizeInBits(NVT) - 2952fecf095292991bdf9396fec474011446107f9813Andrew Lenharth getSizeInBits(VT), NVT)); 2953fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 2954fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 2955fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 295603c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 295703c8546ec57523970874917854a2fb77b1ff598eChris Lattner 295803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 2959456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2960456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 2961456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 2962456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2963456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 296403c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 296503c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 296603c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 29673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2968750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 2969750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 2970750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 2971750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 2972750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 2973750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 2974750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 2975750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 2976750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 2977750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand Tmp1, Tmp2, Result; 2978750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2979750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 2980750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 2981750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 2982750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 2983750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2984750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 2985750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 2986750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 2987750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2988750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 2989750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 2990750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 2991750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 2992750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2993750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 2994750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 2995750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 2996750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 2997750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 2998750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 2999750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3000750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3001750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 3002750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 3003750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 3004750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 3005750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 3006750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 3007750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 3008750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3009750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 3010750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3011750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3012750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3013750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3014750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3015750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 3016750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3017750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 3018750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3019750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3020750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3021750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3022750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3023750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Expand: 3024750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 3025750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 3026750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(RHS, RHSLo, RHSHi); 3027750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3028750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3029750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3030750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 3031750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 3032750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 3033750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 3034750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 3035750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 3036750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3037750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3038750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3039750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 3040750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 3041750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 3042750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 3043750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3044750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 3045750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 3046750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 3047750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 3048750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 3049750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 3050750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 3051750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 3052750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 3053750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 3054750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3055750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3056750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3057750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 3058750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 3059750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3060750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 3061750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3062750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 3063750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3064750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 3065750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3066750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 3067750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3068750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 3069750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3070750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3071750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 3072750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 3073750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 3074750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3075750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 3076750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 3077750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 3078750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi, CC); 3079750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 3080750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 3081750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result, Tmp1, Tmp2)); 3082750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Result; 3083da06e9e665a1a94886541ed85e97315f58b357b0Nate Begeman Tmp2 = SDOperand(); 3084750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3085750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3086750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 3087750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 3088750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 3089750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 309035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 3091232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 3092232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 309335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 309435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 309535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 3096ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(DestVT); 309735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 309835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 309935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand Store = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 3100ed7b5babfbdc708c564266052ad3b0ce0a5726c5Chris Lattner SrcOp, FIPtr, DAG.getSrcValue(NULL)); 310135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 310235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner return DAG.getLoad(DestVT, Store, FIPtr, DAG.getSrcValue(0)); 310335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 310435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 3105ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 3106ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// support the operation, but do support the resultant packed vector type. 3107ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 3108ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3109ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 311087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 3111033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 3112ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 311387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 3114033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 3115033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 31162eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 31172eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 31182eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 31192eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 31202eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 3121033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 3122033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 3123033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> >::iterator I = Values.find(V); 3124033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (I != Values.end()) 3125033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->second.push_back(i); 3126033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng else 3127033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[V].push_back(i); 3128033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 3129ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 3130033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 313187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 31322eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 31332eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 31342eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 31352eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 31362eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 31372eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 3138ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3139ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3140ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 3141ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 3142ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 3143ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 3144ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 3145ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 3146ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 3147ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3148ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 31492eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 3150ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 3151ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 3152ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 3153ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 3154ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 3155033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 3156ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 3157ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 3158ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(ConstantFP::get(OpNTy, V->getValue())); 3159ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 3160ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 3161ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(ConstantUInt::get(OpNTy, V->getValue())); 3162ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 3163ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 3164ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 3165ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3166ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3167ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Constant *CP = ConstantPacked::get(CV); 3168ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 3169ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 3170ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner DAG.getSrcValue(NULL)); 3171ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 31722eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 31732eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 31742eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 31752eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 31762eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 31772eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand Zero = DAG.getConstant(0, MVT::getVectorBaseType(MaskVT)); 31782eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 31792eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, ZeroVec); 3180033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 31812eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 31822eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (TLI.isShuffleLegal(Node->getValueType(0), SplatMask)) { 31832eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 31842eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 31852eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 31862eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 31872eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 31882eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 31892eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 31902eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 31912eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 31922eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 31932eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 3194033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 3195033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 3196033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 3197033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 3198033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 3199033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 3200033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 3201033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 3202033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 3203033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 3204033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 3205033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 3206033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MaskVec[*II] = DAG.getConstant(i, MVT::getVectorBaseType(MaskVT)); 3207033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 3208033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 3209033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, MaskVec); 3210033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 3211033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 3212033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (TLI.isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 3213033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> Ops; 3214033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 3215033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 3216033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 3217033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 3218033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 3219033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 3220033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 3221033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 3222033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 3223033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), Ops); 3224033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 3225033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 3226ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3227ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 3228ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 3229ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 3230ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 3231ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 3232ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(VT); 3233ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3234ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 3235ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<SDOperand> Stores; 3236ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 3237ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 3238ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned VectorSize = MVT::getSizeInBits(VT)/8; 3239ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 3240ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 3241ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 3242ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 3243ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3244841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 3245ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3246ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 3247ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 3248ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3249ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Stores.push_back(DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 3250ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(i), Idx, 3251ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner DAG.getSrcValue(NULL))); 3252ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3253ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3254ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 3255ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 3256ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, Stores); 3257ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 3258ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 3259ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3260ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 3261ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getLoad(VT, StoreChain, FIPtr, DAG.getSrcValue(0)); 3262ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 3263ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3264ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// CreateStackTemporary - Create a stack temporary, suitable for holding the 3265ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// specified value type. 3266ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::CreateStackTemporary(MVT::ValueType VT) { 3267ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo(); 3268ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned ByteSize = MVT::getSizeInBits(VT)/8; 3269ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner int FrameIdx = FrameInfo->CreateStackObject(ByteSize, ByteSize); 3270ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getFrameIndex(FrameIdx, TLI.getPointerTy()); 3271ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 3272ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 32735b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 32745b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 32755b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 32765b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 32775b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 32785b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 32795b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 32805b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner std::vector<SDOperand> Ops; 32815b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Ops.push_back(LHSL); 32825b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Ops.push_back(LHSH); 32835b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Ops.push_back(Amt); 3284cc0675a4be9a5133abd48ee272ff999ae48feabfChris Lattner std::vector<MVT::ValueType> VTs(2, LHSL.getValueType()); 3285e89083a9300dc463e3b79eabe2b9913d85338d28Chris Lattner Lo = DAG.getNode(NodeOp, VTs, Ops); 32865b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 32875b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 32885b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 32895b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 3290e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 3291e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 3292e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 3293e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 3294e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 3295e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 3296e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 3297e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 3298f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 3299e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 3300f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 3301f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 3302f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 3303f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 3304f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 3305f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Handle the case when Amt is an immediate. Other cases are currently broken 3306f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // and are disabled. 3307f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 3308f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 3309f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 3310f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 3311f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 3312f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 3313f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 3314f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3315f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 3316f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 3317f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3318f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 3319f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 3320ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3321ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 3322ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 3323f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3324f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 3325f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 3326f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 3327f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 3328f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3329f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3330f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 3331f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3332f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 3333f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 3334f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3335f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 3336f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 3337ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3338ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 3339ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 3340f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3341f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 3342f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 3343f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 3344f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 3345f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3346f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3347f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 3348f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3349edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 3350f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 3351f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3352edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 3353f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 3354edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 3355f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 3356ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3357ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 3358edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 3359ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 3360f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3361f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 3362f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 3363f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 3364f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 3365f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3366f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3367f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3368f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3369f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 3370e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 337177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 33729c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 337377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 337477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 337577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 337677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 337777e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 337877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi) { 33796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 33806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 33816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 33826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 33836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 33846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 338577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 338677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 338777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 338877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 338977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Args.push_back(std::make_pair(Node->getOperand(i), ArgTy)); 339077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 339177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 3392edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 33930d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 339477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 33950d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 3396adf6a965a321372c640845407195594835921eb4Chris Lattner TLI.LowerCallTo(InChain, RetTy, false, CallingConv::C, false, 3397adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 33980d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 33996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 34006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 34016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 34026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 340399c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 34040d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 340577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 340677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 3407456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 340899c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 340977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 341099c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 341199c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 341277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 341322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 341422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 341522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 341622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 341722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandIntToFP - Expand a [US]INT_TO_FP operation, assuming that the 341822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// destination type is legal. 341922cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 342022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 342122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(isTypeLegal(DestTy) && "Destination type is not legal!"); 342222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 342322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 342422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 342522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 342622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 342722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 342822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 342922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 343022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 343122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 343222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 343322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 343422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 343522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 343622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 343722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 343822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 343922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 344022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 344122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 344222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 344322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 344422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 344522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 344622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 344722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 344822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static Constant *FudgeFactor = ConstantUInt::get(Type::ULongTy, FF); 344922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 345022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 345122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 345222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 345322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 345422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 345522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getSrcValue(NULL)); 345622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 345722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unexpected conversion"); 345822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 345922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx, DAG.getSrcValue(NULL), MVT::f32); 346022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 346122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 346222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 346322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 346422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 346522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 346622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 346722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 346822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 346922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 347022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 347122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 347222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 347322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 347422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 347522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 347622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 347722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 347822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 347922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 348022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 348122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 348222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 348322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 348422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 348522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner const char *FnName = 0; 348622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 348722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FnName = "__floatdisf"; 348822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 348922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 349022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FnName = "__floatdidf"; 349122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 34926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 34936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 34946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 349525125697fb0a761da440b222671cf2d6d4deaeacChris Lattner return ExpandLibCall(FnName, Source.Val, UnusedHiPart); 349622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 349722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 349822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 349922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 350022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 350122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 350222cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 350322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 350422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 350522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 350622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 350722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 350822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get the stack frame index of a 8 byte buffer 350922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 351022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, 8); 351122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 351222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 351322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 351422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 351522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 3516408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 3517408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 3518408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 3519408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 3520408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 352122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 352222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 352322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 352422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 352522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 352622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 352722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 352822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 352922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 353022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 353122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Store1 = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 353222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped, Lo, DAG.getSrcValue(NULL)); 353322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 353422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 353522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 353622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Store2 = DAG.getNode(ISD::STORE, MVT::Other, Store1, 353722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner InitialHi, Hi, DAG.getSrcValue(NULL)); 353822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 353922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, 354022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getSrcValue(NULL)); 354122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 354222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 354322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 354422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 354522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 354622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 354722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 354822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 354922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 355022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 355122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 355222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 355322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 355422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 355522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if f32 then cast to f32 355622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f32, Sub); 355722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 355822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 355922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 356022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 356122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 356222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 356322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 356422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 356522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 356622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 356722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 356822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 356922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 357022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 357122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 357222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 357322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 357422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 357522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 357622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 357722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 357822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 357922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 358022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 358122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 358222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static Constant *FudgeFactor = ConstantUInt::get(Type::ULongTy, FF); 358322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 358422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 358522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 358622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 358722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 358822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 358922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getSrcValue(NULL)); 359022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 359122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestVT == MVT::f64 && "Unexpected conversion"); 359222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, 359322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 359422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getSrcValue(NULL), MVT::f32)); 359522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 359622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 359722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 359822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 359922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 360022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 360122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 360222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 360322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 360422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 360522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 360622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 360722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 360822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 360922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 361022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 361122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 361222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 361322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 361422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 361522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 361622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 361722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 361822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 361922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 362022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 362122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 362222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 362322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 362422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 362522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 362622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 362722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 362822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 362922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 363022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 363122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 363222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 363322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 363422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 363522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 363622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 363722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 363822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 363922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 364022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 364122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 364222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 364322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 364422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 364522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 364622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 364722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 364822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 364922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 365022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 365122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 365222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 365377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 365477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 365522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 365622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 365722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 365822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 365922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 366022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 366122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 366222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 366322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 366422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 36659c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 366622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 3667e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 366822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 366922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 367022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 367122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 367266de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 367322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 367422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 367522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 367622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 367722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 367822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 367922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 368022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 368122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 368222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 368322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 368422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 3685e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 368622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 368722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 368822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 368922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 369022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 369122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 369222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 369322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 369422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 369522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 3696e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 369722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 36980d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 369922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 3700a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 3701a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 370222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Truncate the result of the 370322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // extended FP_TO_*INT operation to the desired size. 370422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, 370522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(OpToUse, NewOutTy, LegalOp)); 370622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 370713689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 370822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 370922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 371022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 371122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 371222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 371322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 371422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 371522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 371622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 371722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 371822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 371922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 372022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 372122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 372222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 372322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 372422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 372522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 372622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 372722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 372822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 372922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 373022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 373122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 373222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 373322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 373422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 373522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 373622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 373722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 373822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 373922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 374022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 374122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 374222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 374322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 374422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 374522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 374622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 374722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 374822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 374922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 375022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 375122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 37520d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 375377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 3754edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 375522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 375622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 375722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 375822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 375922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 376022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 376122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 376222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 376322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 376422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 376522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 376622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 376722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 376822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned len = getSizeInBits(VT); 376922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 377022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 377122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 377222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 377322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 377422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 377522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 377622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 377722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 377822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 377922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 378022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 378122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 378222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 378322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 378422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 378522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 378622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 378722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 378822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 378922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 379022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 379122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned len = getSizeInBits(VT); 379222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 379322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 379422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 379522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 379622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 379722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 379822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 379922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 380022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 380122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 380222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 380322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 380422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 380522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 380622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 380722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 380822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 380922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 381022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 381122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 381222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 381322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(getSizeInBits(VT), VT), 381422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 381522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 381622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 381722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 381822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 3819e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 3820e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 38213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 38223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 38233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 38243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 38253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 38263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 38273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 382871c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 38293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 38303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 3831ab48be377298bd509427a29e174cf4e305138819Nate Begeman assert((MVT::isInteger(VT) || VT == MVT::Vector) && 3832ab48be377298bd509427a29e174cf4e305138819Nate Begeman "Cannot expand FP values!"); 3833ab48be377298bd509427a29e174cf4e305138819Nate Begeman assert(((MVT::isInteger(NVT) && NVT < VT) || VT == MVT::Vector) && 38343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 38353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 38366fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 38376fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 38386fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 38396fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 38406fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 38416fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 38426fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 38433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 38443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 38453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 3846348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 3847348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 3848348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 38493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::cerr << "NODE: "; Node->dump(); std::cerr << "\n"; 38503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 38513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 3852fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3853fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 3854fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 3855fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 38563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 38573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 38583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 38593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 38603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 38613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 3862d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 38638137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 38648137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 38658137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 3866d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 386758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 386858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 386958f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 387058f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner // Sign extend the lo-part. 387158f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 387258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 387358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 387458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner // sext_inreg the low part if needed. 387558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 387658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 3877d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 3878d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 3879d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 3880d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 3881d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 3882d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 3883d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3884d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3885d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3886edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 3887edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 38889b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 38899b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 38909b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 3891edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 3892edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 3893edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 389439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 389539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 38963becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 389739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 389839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 38997cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 39007cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 390139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 390239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 390339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 390439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 390539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 390639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 390739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 390839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 390939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 391039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 39113becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 391239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 391339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 39147cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 39157cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 391639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 391739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 391839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 391939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 392039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 392139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 392239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 3923edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3924acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 39258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 39268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 3927acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 3928acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 3929acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3930acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 39318137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 3932acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 3933acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 3934acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 3935acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3936acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3937acc398c195a697795bff3245943d104eb19192b9Nate Begeman 39383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 39398137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 39408137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 39412d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth Lo = DAG.getLoad(NVT, Ch, Ptr, Node->getOperand(2)); 39423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 39433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Increment the pointer to the other half. 394438d6be5d49e61e4be9bb12ee3cedf2a4fcddb8f3Chris Lattner unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 39453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 39463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner getIntPtrConstant(IncrementSize)); 39478137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // FIXME: This creates a bogus srcvalue! 39482d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth Hi = DAG.getLoad(NVT, Ch, Ptr, Node->getOperand(2)); 3949ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner 3950ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner // Build a factor node to remember that this load is independent of the 3951ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner // other one. 3952ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 3953ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner Hi.getValue(1)); 3954edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 39553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remember that we legalized the chain. 39568137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 39573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (!TLI.isLittleEndian()) 39583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::swap(Lo, Hi); 39593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 39603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 39613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 39623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 39633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 39643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 39653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 39663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 39673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 39683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 39693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 39703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 39713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 3972456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 39733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 39743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 3975456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 3976456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 39773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 39783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 39799373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 39809373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 39819373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 39829373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 39839373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 39849373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 39859373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 39869373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TH, FH, Node->getOperand(4)); 39879373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 39889373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 3989144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman case ISD::SEXTLOAD: { 39908137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Chain = Node->getOperand(0); 39918137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); 3992144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman MVT::ValueType EVT = cast<VTSDNode>(Node->getOperand(3))->getVT(); 3993144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman 3994144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman if (EVT == NVT) 3995144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Lo = DAG.getLoad(NVT, Chain, Ptr, Node->getOperand(2)); 3996144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman else 3997144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Lo = DAG.getExtLoad(ISD::SEXTLOAD, NVT, Chain, Ptr, Node->getOperand(2), 3998144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman EVT); 39999ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 40009ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner // Remember that we legalized the chain. 40018137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 40029ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 4003144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman // The high part is obtained by SRA'ing all but one of the bits of the lo 4004144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman // part. 4005144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 4006144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Hi = DAG.getNode(ISD::SRA, NVT, Lo, DAG.getConstant(LoSize-1, 4007144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman TLI.getShiftAmountTy())); 4008144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman break; 4009144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman } 4010144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman case ISD::ZEXTLOAD: { 40118137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Chain = Node->getOperand(0); 40128137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); 4013144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman MVT::ValueType EVT = cast<VTSDNode>(Node->getOperand(3))->getVT(); 4014144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman 4015144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman if (EVT == NVT) 4016144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Lo = DAG.getLoad(NVT, Chain, Ptr, Node->getOperand(2)); 4017144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman else 4018144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Lo = DAG.getExtLoad(ISD::ZEXTLOAD, NVT, Chain, Ptr, Node->getOperand(2), 4019144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman EVT); 40209ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 40219ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner // Remember that we legalized the chain. 40228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 40239ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 4024144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman // The high part is just a zero. 40258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getConstant(0, NVT); 40269ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner break; 40279ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner } 40289ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner case ISD::EXTLOAD: { 40298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Chain = Node->getOperand(0); 40308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); 40319ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(Node->getOperand(3))->getVT(); 40329ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 40339ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner if (EVT == NVT) 40349ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner Lo = DAG.getLoad(NVT, Chain, Ptr, Node->getOperand(2)); 40359ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner else 40369ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner Lo = DAG.getExtLoad(ISD::EXTLOAD, NVT, Chain, Ptr, Node->getOperand(2), 40379ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner EVT); 40389ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 40399ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner // Remember that we legalized the chain. 40408137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 40419ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 40429ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner // The high part is undefined. 40438137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 4044144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman break; 4045144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman } 40468137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 404713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 40488137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 404913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 405013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 405113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 40523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 40533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 40543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 40558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 4056edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 40573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 40583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 40592dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 40608137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 40618137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 40623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 40633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 40648137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 40653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 40663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 40678137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4068edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 40693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 40703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 40713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 407235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 407335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 407435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand Tmp = ExpandBIT_CONVERT(Node->getValueType(0), 407535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0)); 407635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 407735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 407835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 4079f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 40808137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::READCYCLECOUNTER: 4081308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 4082308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 4083308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 40848137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = TLI.LowerOperation(Op, DAG); 40858137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner assert(Lo.Val && "Node must be custom expanded!"); 40868137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Lo.getValue(1); 4087308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 40888137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner LegalizeOp(Lo.getValue(2))); 4089f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 4090f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 40914e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 40924e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 40934e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner case ISD::FP_TO_SINT: 409480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 4095f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 4096f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 4097f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 40988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 40998137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 4100f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 4101d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 4102f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 4103f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 410480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 410580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 410607dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 410707dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 410807dffd6af673c73352150583150b242a93694f00Chris Lattner break; 410907dffd6af673c73352150583150b242a93694f00Chris Lattner } 411080a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 4111d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 41124e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 411377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixsfdi", Node, Hi); 41144e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 411577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixdfdi", Node, Hi); 41164e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 4117d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 41184e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner case ISD::FP_TO_UINT: 411980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 41208137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 41218137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 41238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 41248137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 41258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 41268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 41278137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 41288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 41298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 413007dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 413107dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 413207dffd6af673c73352150583150b242a93694f00Chris Lattner break; 413307dffd6af673c73352150583150b242a93694f00Chris Lattner } 413480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 4135d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 41364e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 413777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixunssfdi", Node, Hi); 41384e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 413977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixunsdfdi", Node, Hi); 41404e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 41414e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 414205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 414350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 4144348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 414550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 41468137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 414750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 414850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 414950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 415050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 415150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 415250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 415350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 415450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 415550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 4156e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 4157348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 4158e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 41594759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 41604759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 416105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 416205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 416305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 416405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 4165348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 41664759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 41674759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 41684759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 4169e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 417077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__ashldi3", Node, Hi); 4171e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 417205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 4173e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 417405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 417550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 4176348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 417750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 41788137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 417950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 418050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 418150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 418250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 418350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 418450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 418550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 418650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 418750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 4188e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 4189348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 4190e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 41914759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 41924759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 419305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 419405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 419505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 419605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 4197348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 41984759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 41994759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 42004759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 4201e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 420277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__ashrdi3", Node, Hi); 4203e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 420405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 420505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 420605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 420750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 4208348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 420950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 42108137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 421150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 421250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 421350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 421450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 421550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 421650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 421750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 421850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 421950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 4220e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 4221348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 4222e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 42234759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 42244759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 422505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 422605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 422705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 422805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 4229348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 42304759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 42314759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 42324759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 4233e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 423477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__lshrdi3", Node, Hi); 4235e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 423605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 4237e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 4238edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 42398137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 42408137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 42418137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 42428137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 42438137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 42448137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 42458137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 42468137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 42478137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 42488137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 42498137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 42508137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 42518137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 42528137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 42538137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 4254551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman std::vector<MVT::ValueType> VTs; 4255551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman std::vector<SDOperand> LoOps, HiOps; 4256551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman VTs.push_back(LHSL.getValueType()); 4257551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman VTs.push_back(MVT::Flag); 4258551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman LoOps.push_back(LHSL); 4259551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman LoOps.push_back(RHSL); 4260551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman HiOps.push_back(LHSH); 4261551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman HiOps.push_back(RHSH); 4262551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 4263551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Lo = DAG.getNode(ISD::ADDC, VTs, LoOps); 4264551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman HiOps.push_back(Lo.getValue(1)); 4265551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Hi = DAG.getNode(ISD::ADDE, VTs, HiOps); 4266551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 4267551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Lo = DAG.getNode(ISD::SUBC, VTs, LoOps); 4268551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman HiOps.push_back(Lo.getValue(1)); 4269551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Hi = DAG.getNode(ISD::SUBE, VTs, HiOps); 4270551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 427184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 42728137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 4273c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 4274c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner if (TLI.isOperationLegal(ISD::MULHU, NVT)) { 4275c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 4276c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 4277c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 427856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman unsigned SH = MVT::getSizeInBits(RH.getValueType())-1; 427956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // MULHS implicitly sign extends its inputs. Check to see if ExpandOp 428056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // extended the sign bit of the low half through the upper half, and if so 428156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // emit a MULHS instead of the alternate sequence that is valid for any 428256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // i64 x i64 multiply. 428356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman if (TLI.isOperationLegal(ISD::MULHS, NVT) && 428456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is RH an extension of the sign bit of RL? 428556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOpcode() == ISD::SRA && RH.getOperand(0) == RL && 428656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOperand(1).getOpcode() == ISD::Constant && 428756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(RH.getOperand(1))->getValue() == SH && 428856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is LH an extension of the sign bit of LL? 428956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOpcode() == ISD::SRA && LH.getOperand(0) == LL && 429056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOperand(1).getOpcode() == ISD::Constant && 429156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(LH.getOperand(1))->getValue() == SH) { 429256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 429356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } else { 429456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 429556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 429656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 429756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 429856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 429956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 4300c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 4301c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } else { 43029c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Lo = ExpandLibCall("__muldi3" , Node, Hi); 4303c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 4304c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 4305c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 430677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::SDIV: Lo = ExpandLibCall("__divdi3" , Node, Hi); break; 430777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::UDIV: Lo = ExpandLibCall("__udivdi3", Node, Hi); break; 430877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::SREM: Lo = ExpandLibCall("__moddi3" , Node, Hi); break; 430977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::UREM: Lo = ExpandLibCall("__umoddi3", Node, Hi); break; 43103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 43113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 431283397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 431383397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 431483397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 431583397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 431683397363348662e9352455ea1e6e88e7026300a4Chris Lattner Hi = LegalizeOp(Hi); 431783397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 431805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 431905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 432005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng bool isNew = 432105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 432205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 43233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 43243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 4325c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// SplitVectorOp - Given an operand of MVT::Vector type, break it down into 4326c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// two smaller values of MVT::Vector type. 4327c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 4328c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 4329c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Cannot split non-vector type!"); 4330c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 4331c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = cast<ConstantSDNode>(*(Node->op_end()-2))->getValue(); 4332c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 4333c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NewNumElts = NumElements/2; 4334c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand NewNumEltsNode = DAG.getConstant(NewNumElts, MVT::i32); 4335c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TypeNode = *(Node->op_end()-1); 4336c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4337c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 4338c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 4339c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 4340c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 4341c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 4342c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 4343c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 4344c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4345c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4346c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 43477692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner default: Node->dump(); assert(0 && "Unknown vector operation!"); 4348b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::VBUILD_VECTOR: { 4349c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::vector<SDOperand> LoOps(Node->op_begin(), Node->op_begin()+NewNumElts); 4350c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(NewNumEltsNode); 4351c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(TypeNode); 4352b2827b0901162169bb2692b77a839c9767849134Chris Lattner Lo = DAG.getNode(ISD::VBUILD_VECTOR, MVT::Vector, LoOps); 4353c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4354c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::vector<SDOperand> HiOps(Node->op_begin()+NewNumElts, Node->op_end()-2); 4355c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(NewNumEltsNode); 4356c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(TypeNode); 4357b2827b0901162169bb2692b77a839c9767849134Chris Lattner Hi = DAG.getNode(ISD::VBUILD_VECTOR, MVT::Vector, HiOps); 4358c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4359c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4360c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 4361c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 4362c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 4363c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 4364c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 4365c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 4366c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 4367c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: { 4368c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 4369c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 4370c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 4371c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4372c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getNode(Node->getOpcode(), MVT::Vector, LL, RL, 4373c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 4374c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getNode(Node->getOpcode(), MVT::Vector, LH, RH, 4375c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 4376c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4377c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4378c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 4379c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 4380c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 4381c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(TypeNode)->getVT(); 4382c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4383c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 4384c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned IncrementSize = NewNumElts * MVT::getSizeInBits(EVT)/8; 4385c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 4386c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 4387c7029805ef35ce9805931067b841e6af11db382eChris Lattner // FIXME: This creates a bogus srcvalue! 4388c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 4389c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4390c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 4391c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 4392c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 4393c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 4394c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4395c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 4396c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 4397c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (!TLI.isLittleEndian()) 4398c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::swap(Lo, Hi); 4399c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4400c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 44017692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner case ISD::VBIT_CONVERT: { 44027692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 44037692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 44047692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner if (Op.getOperand(0).getValueType() != MVT::Vector) { 44057692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Lower to a store/load. FIXME: this could be improved probably. 44067692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDOperand Ptr = CreateStackTemporary(Op.getOperand(0).getValueType()); 44077692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 44087692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDOperand St = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 44097692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Op.getOperand(0), Ptr, DAG.getSrcValue(0)); 44107692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(TypeNode)->getVT(); 44117692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner St = DAG.getVecLoad(NumElements, EVT, St, Ptr, DAG.getSrcValue(0)); 44127692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(St, Lo, Hi); 44137692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } else { 44147692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // If the input is a vector type, we have to either scalarize it, pack it 44157692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // or convert it based on whether the input vector type is legal. 44167692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 44177692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner unsigned NumElems = 44187692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 44197692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 44207692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 44217692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // If the input is from a single element vector, scalarize the vector, 44227692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // then treat like a scalar. 44237692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner if (NumElems == 1) { 44247692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDOperand Scalar = PackVectorOp(Op.getOperand(0), EVT); 44257692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Scalar = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Scalar, 44267692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Op.getOperand(1), Op.getOperand(2)); 44277692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(Scalar, Lo, Hi); 44287692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } else { 44297692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Split the input vector. 44307692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(Op.getOperand(0), Lo, Hi); 44317692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 44327692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Convert each of the pieces now. 44337692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Lo = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Lo, 44347692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner NewNumEltsNode, TypeNode); 44357692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Hi = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Hi, 44367692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner NewNumEltsNode, TypeNode); 44377692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 44387692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner break; 44397692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 44407692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 4441c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4442c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4443c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 4444c7029805ef35ce9805931067b841e6af11db382eChris Lattner bool isNew = 4445c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 4446c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already expanded?!?"); 4447c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4448c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4449c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4450c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// PackVectorOp - Given an operand of MVT::Vector type, convert it into the 4451c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// equivalent operation that returns a scalar (e.g. F32) or packed value 4452c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// (e.g. MVT::V4F32). When this is called, we know that PackedVT is the right 4453c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// type for the result. 4454c7029805ef35ce9805931067b841e6af11db382eChris LattnerSDOperand SelectionDAGLegalize::PackVectorOp(SDOperand Op, 4455c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType NewVT) { 44561c6191ffe764f3294cc2dda2bb3703403a416414Chris Lattner // FIXME: THIS IS A TEMPORARY HACK 44571c6191ffe764f3294cc2dda2bb3703403a416414Chris Lattner if (Op.getValueType() == NewVT) return Op; 4458384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 4459c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Bad PackVectorOp invocation!"); 4460c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 4461c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4462c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already packed it. 4463c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, SDOperand>::iterator I = PackedNodes.find(Op); 4464c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != PackedNodes.end()) return I->second; 4465c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4466c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 4467c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 44682332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 44692332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->dump(); std::cerr << "\n"; 44702332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner assert(0 && "Unknown vector operation in PackVectorOp!"); 4471c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 4472c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 4473c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 4474c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 4475c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 4476c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 4477c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 4478c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: 4479c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.getNode(getScalarizedOpcode(Node->getOpcode(), NewVT), 4480c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 4481c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(0), NewVT), 4482c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(1), NewVT)); 4483c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4484c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 44854794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SDOperand Ch = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 44864794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SDOperand Ptr = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 4487c7029805ef35ce9805931067b841e6af11db382eChris Lattner 44884794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner Result = DAG.getLoad(NewVT, Ch, Ptr, Node->getOperand(2)); 4489c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4490c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 4491c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4492c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4493c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4494b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::VBUILD_VECTOR: 4495c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (!MVT::isVector(NewVT)) { 4496b2827b0901162169bb2692b77a839c9767849134Chris Lattner // Returning a scalar? 4497c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = Node->getOperand(0); 4498c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4499b2827b0901162169bb2692b77a839c9767849134Chris Lattner // Returning a BUILD_VECTOR? 4500c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()-2); 4501b2827b0901162169bb2692b77a839c9767849134Chris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, NewVT, Ops); 4502c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4503c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 45042332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::VINSERT_VECTOR_ELT: 45052332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (!MVT::isVector(NewVT)) { 45062332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // Returning a scalar? Must be the inserted element. 45072332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Node->getOperand(1); 45082332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } else { 45092332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT, 45102332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner PackVectorOp(Node->getOperand(0), NewVT), 45112332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getOperand(1), Node->getOperand(2)); 45122332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 45132332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 4514e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner case ISD::VBIT_CONVERT: 4515e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner if (Op.getOperand(0).getValueType() != MVT::Vector) 4516e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 4517e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner else { 4518e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // If the input is a vector type, we have to either scalarize it, pack it 4519e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // or convert it based on whether the input vector type is legal. 4520e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 4521e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner unsigned NumElems = 4522e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 4523e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 4524e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner 4525e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 4526e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // type. If so, convert to the packed type. 4527e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 4528e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 4529e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Turn this into a bit convert of the packed input. 4530e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, 4531e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner PackVectorOp(Node->getOperand(0), TVT)); 4532e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner break; 4533e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } else if (NumElems == 1) { 4534e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Turn this into a bit convert of the scalar input. 4535e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, 4536e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner PackVectorOp(Node->getOperand(0), EVT)); 4537e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner break; 4538e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } else { 4539e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // FIXME: UNIMP! 4540e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner assert(0 && "Cast from unsupported vector type not implemented yet!"); 4541e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } 4542e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } 4543c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4544c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4545c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 4546c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 4547c7029805ef35ce9805931067b841e6af11db382eChris Lattner bool isNew = PackedNodes.insert(std::make_pair(Op, Result)).second; 4548c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already packed?"); 4549c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 4550c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4551c7029805ef35ce9805931067b841e6af11db382eChris Lattner 45523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 45533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 45543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 45559c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 45563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 45573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 4558456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 45593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 45603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 4561