LegalizeDAG.cpp revision 3b9fa89fcaf3eb08397c4c68b60c72fc73f8ab44
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> 2482299e70977500209c951404e354510feffb8efaChris Lattner#include <set> 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 } 55536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 55636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 55736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 55836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 55936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 56036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 56136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 56236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 563f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 564b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey MachineDebugInfo *DebugInfo = DAG.getMachineDebugInfo(); 565abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 566abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LABEL = TLI.isOperationLegal(ISD::DEBUG_LABEL, MVT::Other); 567abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 568abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (DebugInfo && (useDEBUG_LOC || useDEBUG_LABEL)) { 569abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 570e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 571abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 572e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 573063e765345fd49df0f53b807e57ada7c2ded7e16Jim Laskey unsigned SrcFile = DebugInfo->RecordSource(DirName, FName); 574abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 575abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey std::vector<SDOperand> Ops; 576abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 577abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 578abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 579abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 580abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 581abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 582abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 583abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 584abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, Ops); 585abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 586d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 587d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 588abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey unsigned ID = DebugInfo->RecordLabel(Line, Col, SrcFile); 589abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 590abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Result = DAG.getNode(ISD::DEBUG_LABEL, MVT::Other, Ops); 591abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 592e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 593e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 594e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 59536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 596e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 59736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 5989ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 5999ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 60036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner std::vector<SDOperand> Ops; 60136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 6029ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 6039ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 6049ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 6059ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 6069ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 6079ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 6089ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 6099ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 61036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 61136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 612c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 61336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 61436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 61536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 61636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 617f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 618f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 619abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 620f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 621f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 622abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 623abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 624abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 625abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 626abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 627c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 628abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 629abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 630abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 631abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 632abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case ISD::DEBUG_LABEL: 633abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid DEBUG_LABEL node!"); 634abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LABEL, MVT::Other)) { 635abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 636abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 637abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 638abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 639c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 640f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 641f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 642551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 64336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 6443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: 6453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 6463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 6473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // FIXME: Maybe we should handle things like targets that don't support full 6493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // 32-bit immediates? 6503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 6513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 6523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 6533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 6543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 6553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 6563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 6573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 6593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 6603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 6613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 6623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 6633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 6643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 6653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 6663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6673181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 6683181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 6693181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = DAG.getTargetConstantFP(CFP->getValue(), CFP->getValueType(0)); 6703181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 6713181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 6723181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 6733181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 6743181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 6753181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 6763181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 6773181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 6783181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 6793181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 6803181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 6813181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 6823181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 6833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Otherwise we need to spill the constant to memory. 6843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool Extend = false; 6853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 686456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // If a FP immediate is precise when represented as a float and if the 687456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // target can do an extending load from float to double, we put it into 688456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // the constant pool as a float, even if it's is statically typed as a 689456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // double. 6903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = CFP->getValueType(0); 6913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isDouble = VT == MVT::f64; 6923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFP *LLVMC = ConstantFP::get(isDouble ? Type::DoubleTy : 6933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Type::FloatTy, CFP->getValue()); 69499939d39c9555ebecbcd24c1b607eae52804ea37Chris Lattner if (isDouble && CFP->isExactlyValue((float)CFP->getValue()) && 69599939d39c9555ebecbcd24c1b607eae52804ea37Chris Lattner // Only do this if the target has a native EXTLOAD instruction from 69699939d39c9555ebecbcd24c1b607eae52804ea37Chris Lattner // f32. 697c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner TLI.isOperationLegal(ISD::EXTLOAD, MVT::f32)) { 6983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LLVMC = cast<ConstantFP>(ConstantExpr::getCast(LLVMC, Type::FloatTy)); 6993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner VT = MVT::f32; 7003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Extend = true; 7013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 702edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 703456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 704f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner if (Extend) { 7055f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 7065f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner CPIdx, DAG.getSrcValue(NULL), MVT::f32); 707f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner } else { 70852d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner Result = DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 70952d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner DAG.getSrcValue(NULL)); 710f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner } 7113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 7133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 714040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 715040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 716c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 717c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 718c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 719c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 720c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 721c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 722c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 723c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 724040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 725040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner std::vector<SDOperand> Ops; 726040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 727c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 728c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 729c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 730a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 731a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 732a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner 733b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 734b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 7352332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 7362332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 7372332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 7382332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 7392332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 7402332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 7412332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 7422332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 743ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 744ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 745b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 7462332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 7472332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 7482332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 7492332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 7502332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 7512332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 7522332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 7532332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 7542332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 7552332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 7562332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 7572332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 7582332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 7592332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 7602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 7612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 7622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 7632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 7642332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 7652332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 7662332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 7672332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 7682332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 7692332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 7702332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 7712332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 7722332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 7732332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner assert(0 && "INSERT_VECTOR_ELT expand not supported yet!"); 7742332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 7752332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 7762332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 7772332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 778ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 779ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 780ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 781ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 782ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 783ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 784ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 785ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 7864d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 7874d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 7884d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 7894d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 7904d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 7914d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 7924d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 793ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: { 794ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the target doesn't support this, store the value to a temporary 795ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // stack slot, then EXTLOAD the vector back out. 7964d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // TODO: If a target doesn't support this, create a stack slot for the 7974d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // whole vector, then store into it, then load the whole vector. 798ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StackPtr = 799ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CreateStackTemporary(Node->getOperand(0).getValueType()); 800ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Ch = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 801ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0), StackPtr, 802ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner DAG.getSrcValue(NULL)); 803ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), Ch, StackPtr, 804ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner DAG.getSrcValue(NULL), 805ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0).getValueType()); 806ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 807ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 808ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 809ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 81087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 81187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner assert(TLI.isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 81287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner "vector shuffle should not be created if not legal!"); 81387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 81487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 81587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 81687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 81787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 81887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner if (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, Result.getValueType()) 81987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner == TargetLowering::Custom) { 82087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 82187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner if (Tmp1.Val) Result = Tmp1; 82287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 82387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 824384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 825384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 826384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 827384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 828384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 829e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner 830e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, 831e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp1.getValueType())) { 832e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner default: assert(0 && "This action is not supported yet!"); 833e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Legal: 834e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 835e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Custom: 836e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 837e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner if (Tmp3.Val) { 838e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Result = Tmp3; 839e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 840e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 841e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner // FALLTHROUGH 842e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Expand: { 843e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner // If the target doesn't support this, store the value to a temporary 844e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner // stack slot, then LOAD the scalar element back out. 845e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner SDOperand StackPtr = CreateStackTemporary(Tmp1.getValueType()); 846e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner SDOperand Ch = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 847e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp1, StackPtr, DAG.getSrcValue(NULL)); 848e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner 849e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner // Add the offset to the index. 850e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner unsigned EltSize = MVT::getSizeInBits(Result.getValueType())/8; 851e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp2 = DAG.getNode(ISD::MUL, Tmp2.getValueType(), Tmp2, 852e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner DAG.getConstant(EltSize, Tmp2.getValueType())); 853e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner StackPtr = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, StackPtr); 854e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner 855e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Result = DAG.getLoad(Result.getValueType(), Ch, StackPtr, 856e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner DAG.getSrcValue(NULL)); 857e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 858e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 859e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 860384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 861384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 8623b9fa89fcaf3eb08397c4c68b60c72fc73f8ab44Chris Lattner case ISD::VEXTRACT_VECTOR_ELT: { 863384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 864384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 865384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // lower to a store then an indexed load. 866384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = Node->getOperand(0); 867384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 868384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 869384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner SDNode *InVal = Tmp1.Val; 870384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner unsigned NumElems = cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 871384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 872384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 873384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // Figure out if there is a Packed type corresponding to this Vector 874384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // type. If so, convert to the packed type. 875384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 876384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 877384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // Turn this into a packed extract_vector_elt operation. 878384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = PackVectorOp(Tmp1, TVT); 879384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, Node->getValueType(0), 880384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1, Tmp2); 881384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 882384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner } else if (NumElems == 1) { 883384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // This must be an access of the only element. 884384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = PackVectorOp(Tmp1, EVT); 885384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 886384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner } else if (ConstantSDNode *CIdx = dyn_cast<ConstantSDNode>(Tmp2)) { 887384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner SDOperand Lo, Hi; 888384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner SplitVectorOp(Tmp1, Lo, Hi); 889384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner if (CIdx->getValue() < NumElems/2) { 890384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = Lo; 891384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner } else { 892384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = Hi; 893384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = DAG.getConstant(CIdx->getValue() - NumElems/2, 894384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2.getValueType()); 895384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner } 896384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 897384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner // It's now an extract from the appropriate high or low part. 898384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = LegalizeOp(DAG.UpdateNodeOperands(Result, Tmp1, Tmp2)); 899384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner } else { 9003b9fa89fcaf3eb08397c4c68b60c72fc73f8ab44Chris Lattner // FIXME: IMPLEMENT STORE/LOAD lowering. Need alignment of stack slot!! 901384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner assert(0 && "unimp!"); 902384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner } 903384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 9043b9fa89fcaf3eb08397c4c68b60c72fc73f8ab44Chris Lattner } 90587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 9066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 9076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 9086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 9106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 9116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 9126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 9136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node); 9146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 9166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 9176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 9186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 9206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 9216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 9226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 9236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 9256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 9266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()); 9276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 9286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 9296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 9306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 9324b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 9334b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 9344b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 9354b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 9366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 9376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 9386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 9396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 9406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 9416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 9426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 9436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 9446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 9456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 9476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 9486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 9496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 9506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 95116cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 9526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 9536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 9546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 9556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 9566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner std::map<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 9576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 9586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 9596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 9606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 9616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 9626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 9636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 9643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 96570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 96670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 96770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 96870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 96970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()); 97070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 97170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 97270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 97370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 97470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 97570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 97670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 97770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()); 97870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 97970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 98070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 98170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 9826a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 9834b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 9846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 9856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 9864b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 9874b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 9884b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 9894b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 9904b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 9914b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 992a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 993fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 994fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 995fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 996c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 997fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 998c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 9995f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 1000a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 1001a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng Node->getValueType(0))) { 1002a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1003903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1004903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1005903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1006903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1007903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 1008903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 1009903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, Node->getValueType(0)); 1010903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp1 = DAG.getNode(ISD::SUB, Node->getValueType(0), SP, Size); // Value 1011903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp2 = DAG.getCopyToReg(SP.getValue(1), SPReg, Tmp1); // Output chain 1012c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1013c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1014903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1015903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1016903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 10175f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 10185f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1019c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1020c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1021a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1022903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1023a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1024903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1025a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1026903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1027903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1028c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1029c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1030903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1031a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1032ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner case ISD::INLINEASM: 1033ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize Chain. 1034ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Tmp2 = Node->getOperand(Node->getNumOperands()-1); 1035c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp2.getValueType() == MVT::Flag) // Legalize Flag if it exists. 1036ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Tmp2 = Tmp3 = SDOperand(0, 0); 1037ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner else 1038ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Tmp3 = LegalizeOp(Tmp2); 1039ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1040ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner if (Tmp1 != Node->getOperand(0) || Tmp2 != Tmp3) { 1041ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()); 1042ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Ops[0] = Tmp1; 1043c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) Ops.back() = Tmp3; 1044c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 1045ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner } 1046ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1047ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1048c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1049ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1050ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 1051c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1052c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 10536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 10546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 10556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 10566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 10576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1058c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1059c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 1060c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner 1061c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1062c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 10636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 10646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 10656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 10666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 10676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 106847e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 106947e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 107047e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 107147e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 107247e9223e06390897c3834f8c527001df392570ffChris Lattner break; 107347e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 107447e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 107547e9223e06390897c3834f8c527001df392570ffChris Lattner break; 107647e9223e06390897c3834f8c527001df392570ffChris Lattner } 1077456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1078456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1079c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 10807cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 10817cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 10827cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1083456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1084456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1085456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1086456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1087456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 10887cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 10897cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 10907cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 10917cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 10927cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 10937cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 10947cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 10957cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 1096550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // Make sure the condition is either zero or one. It may have been 1097550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // promoted from something else. 109819c5c4cca9edd0e1e2961879d3da164325af6d63Chris Lattner unsigned NumBits = MVT::getSizeInBits(Tmp2.getValueType()); 109919c5c4cca9edd0e1e2961879d3da164325af6d63Chris Lattner if (!TLI.MaskedValueIsZero(Tmp2, (~0ULL >> (64-NumBits))^1)) 110019c5c4cca9edd0e1e2961879d3da164325af6d63Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 1101550b1e59c4eb5db020766012b1406fc56833251dChris Lattner 11027cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 11037cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 11047cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 11057cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 11067cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 11077cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 11087cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 11097cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 11107cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 11117cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 11126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 11136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 11146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 11156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 11166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1117750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1118750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1119750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1120181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1121750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1122750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1123750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1124750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1125750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1126750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1127750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1128750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1129750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1130750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1131750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1132750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1133456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1134181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1135181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1136456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1137456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1138456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1139456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1140181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 11417cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1142c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1143f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 11443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 11453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 11462d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1147f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1148c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1149c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(0); 1150c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = Result.getValue(1); 1151456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1152f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1153f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng default: assert(0 && "This action is not supported yet!"); 1154c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner case TargetLowering::Legal: break; 1155456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1156c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = TLI.LowerOperation(Tmp2, DAG); 1157456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 1158c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp1); 1159c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Tmp1.getValue(1)); 1160f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1161c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1162f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1163c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Since loads produce two values, make sure to remember that we 1164c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // legalized both of them. 1165c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp2); 1166c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp3); 1167c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp3 : Tmp2; 1168f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 11690f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::EXTLOAD: 11700f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::SEXTLOAD: 117101ff7216dd7829d4094754086baf28aa2d7149acChris Lattner case ISD::ZEXTLOAD: { 11720f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 11730f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 11740f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 11755f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner MVT::ValueType SrcVT = cast<VTSDNode>(Node->getOperand(3))->getVT(); 117601ff7216dd7829d4094754086baf28aa2d7149acChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), SrcVT)) { 117701ff7216dd7829d4094754086baf28aa2d7149acChris Lattner default: assert(0 && "This action is not supported yet!"); 11781c51c6ac13b5e68b099605021784c7f552dcce3cChris Lattner case TargetLowering::Promote: 11791c51c6ac13b5e68b099605021784c7f552dcce3cChris Lattner assert(SrcVT == MVT::i1 && "Can only promote EXTLOAD from i1 -> i8!"); 1180c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2), 1181c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner DAG.getValueType(MVT::i8)); 1182c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1183c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1184c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1185456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1186456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1187456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 118801ff7216dd7829d4094754086baf28aa2d7149acChris Lattner case TargetLowering::Legal: 1189c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2), 1190c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3)); 1191c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1192c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1193456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1194456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1195456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp3 = TLI.LowerOperation(Tmp3, DAG); 1196456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp3.Val) { 1197c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1198c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1199456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1200456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1201c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 120201ff7216dd7829d4094754086baf28aa2d7149acChris Lattner case TargetLowering::Expand: 120369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 12049d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 12059d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, Node->getOperand(2)); 120631559081a4285f4b7282e765aea4ec8a8e1d396cAndrew Lenharth Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1207c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1208c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Load.getValue(1)); 1209c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 12109d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 121101ff7216dd7829d4094754086baf28aa2d7149acChris Lattner assert(Node->getOpcode() != ISD::EXTLOAD && 121201ff7216dd7829d4094754086baf28aa2d7149acChris Lattner "EXTLOAD should always be supported!"); 121301ff7216dd7829d4094754086baf28aa2d7149acChris Lattner // Turn the unsupported load into an EXTLOAD followed by an explicit 121401ff7216dd7829d4094754086baf28aa2d7149acChris Lattner // zero/sign extend inreg. 12155f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 12165f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Tmp1, Tmp2, Node->getOperand(2), SrcVT); 121723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner SDOperand ValRes; 121823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SEXTLOAD) 121923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 122015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, DAG.getValueType(SrcVT)); 122123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner else 122223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1223c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1224c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1225c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 122601ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 1227c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Since loads produce two values, make sure to remember that we legalized 1228c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // both of them. 1229c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1230c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1231c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 123201ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 12335dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 12345dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 12355dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1236c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 12375dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 12385dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 12395dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 12405dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 12415dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 12425dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 12435dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 12445dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 12455dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 12465dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 12475dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 12485dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 12495dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 12505dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 12515dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 12525dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 12535dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 12545dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 12555dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 12565dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 12575dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 12585dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 12593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 12605dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 12613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 12623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 12633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1264edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1265c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1266d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 12677310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1268d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1269f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1270c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 12717310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1272f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1273c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1274f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1275c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1276c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1277c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1278c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 12797310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 12807310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 12817310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 12827310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1283c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 12847310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1285c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 12867310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 12873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 12883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 12893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 12903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 12916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 12936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 12946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 12956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 12966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 12983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 2: // ret val 12993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 13003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 13013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1302c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 13033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 13053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 13063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), Lo, Hi); 13073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Hi); 1308edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 13093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 13103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 13118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 1312c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1313c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 13148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 13153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 13163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1318c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 13193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 13213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::vector<SDOperand> NewValues; 13223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 13233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (unsigned i = 1, e = Node->getNumOperands(); i != e; ++i) 13243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 13253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 13264e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 13273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 13293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 13303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 13313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 13323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Hi); 1333edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 13343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 13353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 13368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 13373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1338c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1339c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 1340c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, NewValues); 1341c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 1342c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, NewValues); 13433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 13453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 134617c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 13476862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 13486862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 13496862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 13506862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 13516862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 13526862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 13536862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 13546862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 13556862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 135617c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 13573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1358f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 13593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); // Legalize the pointer. 13613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 13625d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 1363456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 136406ac6ab938cf54596202de851da4b20aa61fe64eChris Lattner // FIXME: move this to the DAG Combiner! 136503c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (ConstantFPSDNode *CFP =dyn_cast<ConstantFPSDNode>(Node->getOperand(1))){ 13665d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner if (CFP->getValueType(0) == MVT::f32) { 1367c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = DAG.getConstant(FloatToBits(CFP->getValue()), MVT::i32); 13685d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner } else { 13695d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner assert(CFP->getValueType(0) == MVT::f64 && "Unknown FP type!"); 1370c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = DAG.getConstant(DoubleToBits(CFP->getValue()), MVT::i64); 13715d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner } 1372c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::STORE, MVT::Other, Tmp1, Tmp3, Tmp2, 1373c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3)); 13746a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner break; 13755d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner } 13765d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner 13773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 13783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: { 1379c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(1)); 1380c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 1381c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3)); 1382f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng 1383c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner MVT::ValueType VT = Tmp3.getValueType(); 1384456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (TLI.getOperationAction(ISD::STORE, VT)) { 1385456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "This action is not supported yet!"); 1386456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1387456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1388456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1389456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1390456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1391f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 13923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 13943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 139503c8546ec57523970874917854a2fb77b1ff598eChris Lattner // Truncate the value and store the result. 139603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(1)); 139703c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Tmp1, Tmp3, Tmp2, 13982d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth Node->getOperand(3), 13999fadb4c1c0a6d223aa468f9f72f8c2562dc66839Chris Lattner DAG.getValueType(Node->getOperand(1).getValueType())); 140003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 140103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 14023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: 1403c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned IncrementSize = 0; 14043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 1405c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1406ab48be377298bd509427a29e174cf4e305138819Nate Begeman // If this is a vector type, then we have to calculate the increment as 1407ab48be377298bd509427a29e174cf4e305138819Nate Begeman // the product of the element size in bytes, and the number of elements 1408ab48be377298bd509427a29e174cf4e305138819Nate Begeman // in the high half of the vector. 1409c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (Node->getOperand(1).getValueType() == MVT::Vector) { 1410c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *InVal = Node->getOperand(1).Val; 1411c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElems = 1412c7029805ef35ce9805931067b841e6af11db382eChris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 1413c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 1414c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1415c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Figure out if there is a Packed type corresponding to this Vector 1416c7029805ef35ce9805931067b841e6af11db382eChris Lattner // type. If so, convert to the packed type. 1417c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 1418c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 1419c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Turn this into a normal store of the packed type. 1420c7029805ef35ce9805931067b841e6af11db382eChris Lattner Tmp3 = PackVectorOp(Node->getOperand(1), TVT); 1421c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 1422c7029805ef35ce9805931067b841e6af11db382eChris Lattner Node->getOperand(3)); 1423c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 1424c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else if (NumElems == 1) { 1425c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Turn this into a normal store of the scalar type. 1426c7029805ef35ce9805931067b841e6af11db382eChris Lattner Tmp3 = PackVectorOp(Node->getOperand(1), EVT); 1427c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 1428c7029805ef35ce9805931067b841e6af11db382eChris Lattner Node->getOperand(3)); 1429c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 1430c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 1431c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), Lo, Hi); 1432c7029805ef35ce9805931067b841e6af11db382eChris Lattner IncrementSize = NumElems/2 * MVT::getSizeInBits(EVT)/8; 1433c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 1434ab48be377298bd509427a29e174cf4e305138819Nate Begeman } else { 1435c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Node->getOperand(1), Lo, Hi); 1436ab48be377298bd509427a29e174cf4e305138819Nate Begeman IncrementSize = MVT::getSizeInBits(Hi.getValueType())/8; 1437ab48be377298bd509427a29e174cf4e305138819Nate Begeman } 1438c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1439c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (!TLI.isLittleEndian()) 1440c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::swap(Lo, Hi); 1441c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1442c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getNode(ISD::STORE, MVT::Other, Tmp1, Lo, Tmp2, 1443c7029805ef35ce9805931067b841e6af11db382eChris Lattner Node->getOperand(3)); 14443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 14453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner getIntPtrConstant(IncrementSize)); 14463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(isTypeLegal(Tmp2.getValueType()) && 14473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Pointers must be legal!"); 1448456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FIXME: This sets the srcvalue of both halves to be the same, which is 1449456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // wrong. 1450edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getNode(ISD::STORE, MVT::Other, Tmp1, Hi, Tmp2, 1451edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Node->getOperand(3)); 1452ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 1453ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner break; 14543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 14553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1456f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 145795762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 145895762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1459c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 146095762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 1461140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 1462140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1463c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1464c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1465c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1466456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1467140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 1468140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1469456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1470456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1471c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1472c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 1473c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1474c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1475140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1476456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1477140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 14784f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 14794f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 14804f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 1481c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 14824f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 1483c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 14844f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 1485c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 1486c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 14874f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1488456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1489140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1490456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1491456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 1492456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 1493c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1494c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1495c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1496456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1497140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 1498140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1499140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 1500c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1501140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 1502140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 1503140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1504456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1505456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1506456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1507456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1508140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1509140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 15104f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 15114f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 15124f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 15134f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 15144f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 15154f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 15164f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1517140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1518140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1519140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1520140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 152151b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 152251b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 1523c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 152449c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 152549c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 152649c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 1527c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 152849c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1529c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 1530f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 1531f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::TRUNCSTORE: { 15320f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15330f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the pointer. 15340f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 1535456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(isTypeLegal(Node->getOperand(1).getValueType()) && 1536456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner "Cannot handle illegal TRUNCSTORE yet!"); 1537456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1538456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1539456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // The only promote case we handle is TRUNCSTORE:i1 X into 1540456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // -> TRUNCSTORE:i8 (and X, 1) 1541456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (cast<VTSDNode>(Node->getOperand(4))->getVT() == MVT::i1 && 1542456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TLI.getOperationAction(ISD::TRUNCSTORE, MVT::i1) == 1543456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TargetLowering::Promote) { 1544456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Promote the bool to a mask then store. 1545456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = DAG.getNode(ISD::AND, Tmp2.getValueType(), Tmp2, 1546456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(1, Tmp2.getValueType())); 1547456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Tmp1, Tmp2, Tmp3, 1548456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(3), DAG.getValueType(MVT::i8)); 1549456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1550456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } else if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1) || 1551456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp3 != Node->getOperand(2)) { 1552c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 1553c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 1554456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1555456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1556456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType StVT = cast<VTSDNode>(Result.Val->getOperand(4))->getVT(); 1557456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (TLI.getOperationAction(Result.Val->getOpcode(), StVT)) { 1558456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "This action is not supported yet!"); 1559456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1560456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1561456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1562456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 15630f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 15640f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner } 15650f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 1566f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 15672ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 156847e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 156947e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 157047e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 157147e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 157247e9223e06390897c3834f8c527001df392570ffChris Lattner break; 157347e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 157447e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 157547e9223e06390897c3834f8c527001df392570ffChris Lattner break; 157647e9223e06390897c3834f8c527001df392570ffChris Lattner } 15773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 15782ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 157955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 1580c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1581456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1582b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 158355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 1584456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1585456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 1586456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1587456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1588456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1589456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 15909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 15919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 15929373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 15939373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 15949373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 15959373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 1596550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // Make sure the condition is either zero or one. It may have been 1597550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // promoted from something else. 15980e753d617be1ff6a9ac0f894da9d2544e2489850Chris Lattner unsigned NumBits = MVT::getSizeInBits(Tmp1.getValueType()); 15990e753d617be1ff6a9ac0f894da9d2544e2489850Chris Lattner if (!TLI.MaskedValueIsZero(Tmp1, (~0ULL >> (64-NumBits))^1)) 16000e753d617be1ff6a9ac0f894da9d2544e2489850Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 16019373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 16029373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 16039373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 16049373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 160555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 160655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 160755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 160855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 160955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 161055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner if (MVT::isInteger(Tmp2.getValueType())) { 1611456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 1612456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 161355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 1614456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 1615456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 161655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 161755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 161855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 161955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 162055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 162155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 162255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 162355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 162455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 162555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 16263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1627750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 1628750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 1629750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 16309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 16319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 1632750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 16339373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 1634750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 1635750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1636750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1637750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1638750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1639750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 1640750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 1641750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 1642750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1643750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 1644750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1645750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 1646750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 1647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 1648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 1649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 1650750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 1651750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 16529373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 16539373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 16549373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 1655750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 16563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 1657750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 1658750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 1659750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 1660750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 1661750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1662750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 1663750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 1664750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 1665750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 1666750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 16673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1669b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 167073e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 1671456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 1672456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1673456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1674456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 1675456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 1676c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1677456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1678456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1679456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp3.Val) Result = Tmp3; 1680456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1681b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 1682ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 1683ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 1684ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 1685ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 1686ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 1687ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType OldVT = NewInTy; 1688ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 1689ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 1690ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 1691ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 1692ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 1693ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 1694ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 1695ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 1696ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 1697ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 1698ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 16991ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 1700ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 1701ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 1702ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 1703ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 1704ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 1705ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 1706ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 1707ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 1708c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1709c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1710c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1711433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 17125e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 1713ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 1714b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 1715b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 1716b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 1717b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 1718b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 1719b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 1720b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Node->getOperand(2)); 1721b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 1722b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 17233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1724e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 1725e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 1726e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 1727deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 1728e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 1729e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 1730e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 1731e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 1732e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 1733e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 1734deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1735e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1736e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 1737deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 1738e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1739e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 1740e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 1741edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 1742e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 1743272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 1744272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 1745272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 17466814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 17476814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 17486814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 17496814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner ExpandOp(Node->getOperand(3), HiPart, Tmp4); 17506814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 17516814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 1752e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 1753e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 1754e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1755e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 1756e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 1757272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 1758272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 1759272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 1760272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 1761272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 1762272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 1763272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 1764272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 1765272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 1766272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 1767e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 1768e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1769e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 177055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 177155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 177255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 1773456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1774456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1775456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 177655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 1777c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, Tmp5); 1778456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1779456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1780456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1781456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 178255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 178355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 1784e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 1785e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 1786e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 1787e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner const Type *IntPtrTy = TLI.getTargetData().getIntPtrType(); 1788e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::vector<std::pair<SDOperand, const Type*> > Args; 1789e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 17903bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 1791e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 1792e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp2, IntPtrTy)); 1793dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 1794dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 1795dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 1796dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 1797dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 1798dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 1799e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp3, Type::IntTy)); 1800e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp4, IntPtrTy)); 1801e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 1802e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 1803e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 1804e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 1805e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp2, IntPtrTy)); 1806e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp3, IntPtrTy)); 1807e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp4, IntPtrTy)); 1808e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 1809e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 1810e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 1811e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 181245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 1813e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 1814adf6a965a321372c640845407195594835921eb4Chris Lattner TLI.LowerCallTo(Tmp1, Type::VoidTy, false, CallingConv::C, false, 1815e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 1816456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 181755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 181855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 1819e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 1820e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 1821e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 182252d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 18235b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 18245b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 18255b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 182684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner std::vector<SDOperand> Ops; 182784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 182884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 182984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 183084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 183184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 1832c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 1833c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 18342c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 183505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 183605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 183705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 1838456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1839456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1840456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1841456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 1842456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 184305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 1844456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 184505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 184605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 184712f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 184805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 1849269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 185005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 185105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 185205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 185305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 185405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 18552c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 18562c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 18572c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 18582c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 18592c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 186084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 18612c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 18622c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 18633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 18643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 18653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 1866c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 1867c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 18683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 18693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 18703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 18713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 18723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 187303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 187403c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 187503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 187601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 187701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 187801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 187901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 18803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 1881f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 1882f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 1883f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 1884f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 1885f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 1886f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 1887f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 1888f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 1889f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 1890c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1891c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1892456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1893e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1894456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Operation not supported"); 1895456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1896456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1897456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1898456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 189957030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 1900e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 19013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1902a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 1903a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 1904a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 1905a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 1906a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 1907a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 1908a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 1909a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 1910a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 1911a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 1912a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 1913a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 1914a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 1915a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1916a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 1917a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1918a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 1919a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 1920a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1921a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 19228f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 1923a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 1924a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Expand: 19258f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // If this target supports fabs/fneg natively, do this efficiently. 19268f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner if (TLI.isOperationLegal(ISD::FABS, Tmp1.getValueType()) && 19278f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner TLI.isOperationLegal(ISD::FNEG, Tmp1.getValueType())) { 19288f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 19298f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 19308f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 19318f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 19328f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 19338f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 19348f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 19358f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 19368f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 19378f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 19388f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 19398f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 19408f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 19418f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 19428f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 19438f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 19448f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 19458f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 19468f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 19478f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 19488f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // copysign -> copysignf/copysign libcall. 1949a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner const char *FnName; 1950a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Node->getValueType(0) == MVT::f32) { 1951a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner FnName = "copysignf"; 1952a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp2.getValueType() != MVT::f32) // Force operands to match type. 1953a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, 1954a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner DAG.getNode(ISD::FP_ROUND, MVT::f32, Tmp2)); 1955a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } else { 1956a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner FnName = "copysign"; 1957a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp2.getValueType() != MVT::f64) // Force operands to match type. 1958a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, 1959a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner DAG.getNode(ISD::FP_EXTEND, MVT::f64, Tmp2)); 1960a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 1961a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner SDOperand Dummy; 1962a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 1963a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 1964a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 1965a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 1966a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 1967551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 1968551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 1969551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 1970551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 1971551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1972551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 1973551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 1974551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1975551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1976551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 1977edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1978551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 1979551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 1980551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 1981551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 1982551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 1983551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1984551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 1985551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 1986551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1987551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1988551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 1989551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 1990419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 1991419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 1992419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 1993419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 1994419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 1995419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 1996456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 1997456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1998456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 1999419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 2000419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 2001419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 2002419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2003419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 2004419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 2005419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 2006419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 2007419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 2008419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 2009456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 2010419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2011419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2012419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2013419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2014419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 2015c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 2016c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 201701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2018c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2019c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2020456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2021c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2022456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 2023456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2024456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2025456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 202657030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 2027c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2028456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2029456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2030456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2031456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 203257030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 20334c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner case TargetLowering::Expand: 20344c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner if (MVT::isInteger(Node->getValueType(0))) { 2035456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // X % Y -> X-X/Y*Y 20364c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner MVT::ValueType VT = Node->getValueType(0); 2037456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner unsigned Opc = Node->getOpcode() == ISD::UREM ? ISD::UDIV : ISD::SDIV; 20384c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner Result = DAG.getNode(Opc, VT, Tmp1, Tmp2); 20394c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 20404c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 20414c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner } else { 20424c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner // Floating point mod -> fmod libcall. 20434c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner const char *FnName = Node->getValueType(0) == MVT::f32 ? "fmodf":"fmod"; 20444c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner SDOperand Dummy; 20459c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 2046c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2047c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2048c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2049c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2050acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 2051acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2052acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2053acc398c195a697795bff3245943d104eb19192b9Nate Begeman 20545c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2055acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 2056acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2057456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2058456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2059456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2060acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2061c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2062c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 2063456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 2064456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2065456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2066456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 2067456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 2068456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 2069456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 2070456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2071456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2072acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2073acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 2074acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 2075acc398c195a697795bff3245943d104eb19192b9Nate Begeman Node->getOperand(2)); 2076acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 2077acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 2078acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 2079acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 2080acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 2081acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::STORE, MVT::Other, VAList.getValue(1), Tmp3, Tmp2, 2082acc398c195a697795bff3245943d104eb19192b9Nate Begeman Node->getOperand(2)); 2083acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 2084acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = DAG.getLoad(VT, Tmp3, VAList, DAG.getSrcValue(0)); 2085456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 2086acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 2087acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2088acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2089acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2090acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 2091acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 2092acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 2093456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 2094456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 2095acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2096acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2097acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 2098acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2099acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 2100acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 2101acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2102acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 2103acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2104456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2105456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2106456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2107acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2108c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 2109c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 2110456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2111456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2112456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2113456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2114acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2115acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2116acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 2117acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 2118acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, Node->getOperand(3)); 2119acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = DAG.getNode(ISD::STORE, MVT::Other, Tmp4.getValue(1), Tmp4, Tmp2, 2120acc398c195a697795bff3245943d104eb19192b9Nate Begeman Node->getOperand(4)); 2121acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2122acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2123acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2124acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2125acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 2126acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2127acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2128acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2129acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 2130acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2131456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2132456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2133456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2134acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2135c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2136456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2137456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 2138456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2139456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2140acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2141acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2142acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 2143acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2144acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2145acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2146acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2147acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 2148acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2149acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2150acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2151c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2152c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2153acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 2154acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2155456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2156456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2157456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2158456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2159acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2160acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2161acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2162acc398c195a697795bff3245943d104eb19192b9Nate Begeman 216335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 216435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 216535ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 216635ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2167456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2168456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 2169456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner "Cannot handle this yet!"); 2170c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 217135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 217235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 2173d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2174d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2175d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2176456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2177456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 2178456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2179c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2180456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2181456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 2182456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 2183456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2184456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner unsigned DiffBits = getSizeInBits(NVT) - getSizeInBits(OVT); 2185456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2186456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2187456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2188456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2189456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 2190456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2191456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2192456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 2193456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 2194456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2195d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 2196d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2197d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 2198691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2199691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2200691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2201691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2202691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2203456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: assert(0 && "Cannot custom handle this yet!"); 2204691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 2205c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2206691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2207691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 2208691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 2209691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2210edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 2211edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 2212691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2213691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 2214691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 2215456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2216691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2217691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 2218691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2219691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2220691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 22217cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 22227cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner DAG.getConstant(getSizeInBits(NVT), NVT), 22237cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 222400b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2225691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth DAG.getConstant(getSizeInBits(OVT),NVT), Tmp1); 2226691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2227691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2228456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 222900b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 223000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen DAG.getConstant(getSizeInBits(NVT) - 2231691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth getSizeInBits(OVT), NVT)); 2232691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2233691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2234691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2235691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2236691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 2237456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 2238691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2239691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2240691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 224100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 22422c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 22432c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 22442c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 2245da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 2246da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 2247da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 22482c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 22492c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2250456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2251456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 225259ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 225359ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 22542c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 2255c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 225659ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 225759ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 225859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 225959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 22602c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 22612c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 2262456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2263456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 2264456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 22652c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 22662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 2267456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 2268f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2269f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 22704af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 22714af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 22724af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 22737cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 22744af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 22754af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 2276f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2277f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 2278f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 2279f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 2280f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 2281f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2282f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner const char *FnName = 0; 2283f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 2284f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: FnName = VT == MVT::f32 ? "sqrtf" : "sqrt"; break; 2285f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: FnName = VT == MVT::f32 ? "sinf" : "sin"; break; 2286f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: FnName = VT == MVT::f32 ? "cosf" : "cos"; break; 2287f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 2288f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 22892ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 22909c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 2291f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2292f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 22932c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 22942c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 22952c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 22962c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 229735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 229835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 229967993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 230035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 230167993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 230235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 230335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 230435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 230535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 230635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 230735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 230835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 230935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2310c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 231135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 231235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 231335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 231435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 23152c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 2316fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 2317fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 2318fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 2319fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2320fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2321d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 2322fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 2323fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 2324456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2325456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2326456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2327456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2328456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2329c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2330456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2331456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2332456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2333456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2334456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2335fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 23366269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 23376269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 23386269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 2339456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2340fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 2341fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 2342fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 2343fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 2344fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 23455b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 2346fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2347fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2348fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 2349fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 2350fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2351fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2352c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2353fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 2354c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 2355c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 2356fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 2357c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 2358c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 2359fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2360c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2361c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 2362fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2363fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2364fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2365fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2366fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 2367fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2368fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2369fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2370c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2371fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2372fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2373fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 2374fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 2375fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 2376fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 2377fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 2378fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2379fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2380fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 2381fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 2382fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2383fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2384fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2385d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 2386fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 2387fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 2388fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2389fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2390f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2391f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 23921618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 23931618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 2394456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2395456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2396456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2397456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2398c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2399456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2400456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2401456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2402456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2403456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2404456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2405456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 2406456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 2407456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 24081618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 2409d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 2410d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 2411d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 2412d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 2413d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman unsigned ShiftAmt = MVT::getSizeInBits(Node->getValueType(0))-1; 2414d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getConstantFP((double)(1ULL << ShiftAmt), VT); 2415d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 2416d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 2417d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 2418d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 241901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 2420d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 2421d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 2422d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 2423456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 2424456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2425d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 2426d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 2427d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 2428d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 24291618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 2430fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2431fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2432fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner assert(0 && "Shouldn't need to expand other operators here!"); 2433fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2434c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2435c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 2436c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 2437fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2438fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2439fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2440d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 244113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 24423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 24433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 244403c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_EXTEND: 244503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_ROUND: 24463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2447456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 24483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 24493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2450c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 24513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 245203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 245303c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 245413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 2455c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2456c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 245713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 24581713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 24591713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 246013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 246123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 246223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 246303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 246403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 24651713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 246613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 24671713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 246815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 246915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 24701713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 247103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 24721713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 24731713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 24741713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 24751713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 24761713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 247703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 2478f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 2479f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 2480f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 248103c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 24823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 24833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 24840f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 248523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 24860f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 248715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 248845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 248945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 249045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 249155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 249255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 249355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2494c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 249555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 249655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 249745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 249823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 249945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 250045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 250145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 250245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 250327ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 250445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 250545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 250645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 250745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 250845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 250945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // The only way we can lower this is to turn it into a STORETRUNC, 251045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 251145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 251245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 251345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 251445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 251545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 251645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned TySize = (unsigned)TLI.getTargetData().getTypeSize(Ty); 251745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned Align = TLI.getTargetData().getTypeAlignment(Ty); 251845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 2519edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 252045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MF.getFrameInfo()->CreateStackObject((unsigned)TySize, Align); 252145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 252245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, DAG.getEntryNode(), 252352d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner Node->getOperand(0), StackSlot, 25249fadb4c1c0a6d223aa468f9f72f8c2562dc66839Chris Lattner DAG.getSrcValue(NULL), DAG.getValueType(ExtraVT)); 25255f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 25265f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result, StackSlot, DAG.getSrcValue(NULL), 25275f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner ExtraVT); 252845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 252945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 253045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 253155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 253245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 25330f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 25343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 253545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 2536456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2537456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 2538456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 2539456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 25403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 254145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 254245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 254345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 25443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 25453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 25463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 25478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 25488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 25498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 25508b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 255103c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 255203c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 255371c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 255403c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 255503c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 255603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 255703c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 255803c8546ec57523970874917854a2fb77b1ff598eChris Lattner 255903c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 256003c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 256103c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 256203c8546ec57523970874917854a2fb77b1ff598eChris Lattner 25636fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner std::map<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 25646fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 256545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 256603c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 2567d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 2568d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 256903c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 257003c8546ec57523970874917854a2fb77b1ff598eChris Lattner std::cerr << "NODE: "; Node->dump(); std::cerr << "\n"; 257103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 257203c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 2573fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 2574fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 2575fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 257603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 2577ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 2578ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 2579ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 2580ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 258103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 258203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 258303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 258403c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 258503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 258603c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 2587ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 258882fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 2589c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 25907cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 25917cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 259282fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 259303c8546ec57523970874917854a2fb77b1ff598eChris Lattner 259403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 259503c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 259603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 259703c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 259803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 259903c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 260003c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 260103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 260203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 2603e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 2604e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 2605e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 2606e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 2607e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 260803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 260979e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 261079e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 2611e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 261203c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 261303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 26148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 26158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 261613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 26178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 26188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 26198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 26208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 2621456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 26228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 26248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 26258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 26268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 26278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 2628595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 262915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 263013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 263123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 263223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 26338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 26358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 263635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 263735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 263835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 263935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 264035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 26418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 26428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 26438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 26448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 26458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 26468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 26478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 26488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 2649456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 265015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 26518b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 26538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 26558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 26568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 26578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 26588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 265977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 2660456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 26618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 26638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 26648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 26658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 26668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 266715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 266815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 26698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 267023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 267123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 267277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 267377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 26748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 267677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 267777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 267877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 267977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 268015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 268115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 268277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 26838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 26848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 26865e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 26875e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 26885e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 26895e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 26905e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 26918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 26928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 26938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 26948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 2695456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 26968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 26988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 26998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 27008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 27018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 27028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 27038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "not implemented"); 27048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 2705d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 2706d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 2707d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 2708d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 2709d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 2710d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 2711c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 2712b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 2713b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 2714d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 2715d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 2716d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 2717d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 27188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 27198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 27202c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 27212c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 27222c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 27232c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 27242c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 27252c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 27262c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 27272c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 27282c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 27292c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 2730da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 2731da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 2732da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 2733da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2734da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 2735da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 2736456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 273715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 273815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 2739da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 2740da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 274103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 274203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 274303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 27440f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 27458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 27460f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 27470f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 274801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 27490f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 27500f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 27510f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 27520f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 27530f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 275401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 275501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 275601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 275701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 275801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 275901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 276001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 276101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 276201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 276301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 276401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 276501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 27668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 27678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 276801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 276915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 277015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 27710f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 27720f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 27738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 27748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 27758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 27768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 27778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 27788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 277915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 278015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 278115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 278215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 27838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 27848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 27858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 27868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 27878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 278815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 278915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 27908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 279101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 279201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2793a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 279401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 279501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 279601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 279701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 279801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 279901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 2800a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 280101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 280201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 280301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 28048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 28058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 28068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 28078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 28088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 28098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 28108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 281123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 281223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 28138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 28148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 28158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 28168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 28178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2818456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 28198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 28208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 28218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 28228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 282315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 282415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 2825456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 28268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 28278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 28288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 28298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 283023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 2831456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 28328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 28330aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 28340aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 2835456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 2836456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 28370aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 28380aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 28390aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 28400aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 28410aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 28420aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Node->getOperand(2)); 28430aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 28440aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 28450aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 28460aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 28470aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 28480aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::STORE, MVT::Other, VAList.getValue(1), Tmp3, Tmp2, 28490aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Node->getOperand(2)); 28500aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 28510aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, 28520aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getSrcValue(0), VT); 28530aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 28540aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 2855456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 28560aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 28570aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 285803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::LOAD: 2859456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Node->getOperand(0), 2860456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Node->getOperand(2), VT); 286103c8546ec57523970874917854a2fb77b1ff598eChris Lattner // Remember that we legalized the chain. 2862456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 286303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 28644c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner case ISD::SEXTLOAD: 28654c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner case ISD::ZEXTLOAD: 28664c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner case ISD::EXTLOAD: 2867456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getExtLoad(Node->getOpcode(), NVT, Node->getOperand(0), 2868456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Node->getOperand(2), 28698136cdae60eaa30cea91f288f25564a417b19a84Chris Lattner cast<VTSDNode>(Node->getOperand(3))->getVT()); 28704c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 2871456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 28724c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 287303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 287403c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 287503c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 2876456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 287703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 28789373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 28799373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 28809373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 28819373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 2882456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 28839373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2884d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2885d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 2886d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2887d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2888d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2889d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman DAG.getConstant(getSizeInBits(NVT) - getSizeInBits(VT), 2890d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 2891d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2892fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 2893fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 2894fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 2895456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 2896456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 2897fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 2898fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 2899456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 2900fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 2901fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 2902fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 2903fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 2904456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 2905d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 29067cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner DAG.getConstant(getSizeInBits(NVT), NVT), ISD::SETEQ); 290700b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2908456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(getSizeInBits(VT), NVT), Tmp1); 2909fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 2910fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 2911fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 291200b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 291300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen DAG.getConstant(getSizeInBits(NVT) - 2914fecf095292991bdf9396fec474011446107f9813Andrew Lenharth getSizeInBits(VT), NVT)); 2915fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 2916fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 2917fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 291803c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 291903c8546ec57523970874917854a2fb77b1ff598eChris Lattner 292003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 2921456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2922456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 2923456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 2924456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2925456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 292603c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 292703c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 292803c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 29293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2930750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 2931750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 2932750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 2933750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 2934750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 2935750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 2936750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 2937750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 2938750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 2939750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand Tmp1, Tmp2, Result; 2940750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2941750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 2942750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 2943750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 2944750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 2945750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2946750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 2947750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 2948750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 2949750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2950750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 2951750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 2952750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 2953750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 2954750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2955750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 2956750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 2957750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 2958750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 2959750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 2960750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 2961750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 2962750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 2963750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 2964750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 2965750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 2966750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 2967750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 2968750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 2969750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 2970750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 2971750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 2972750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2973750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 2974750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 2975750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 2976750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 2977750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 2978750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 2979750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 2980750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 2981750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2982750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2983750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2984750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2985750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Expand: 2986750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 2987750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 2988750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(RHS, RHSLo, RHSHi); 2989750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 2990750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 2991750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 2992750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 2993750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 2994750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 2995750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 2996750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 2997750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 2998750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2999750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3000750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3001750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 3002750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 3003750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 3004750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 3005750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3006750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 3007750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 3008750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 3009750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 3010750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 3011750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 3012750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 3013750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 3014750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 3015750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 3016750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3017750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3018750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3019750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 3020750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 3021750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3022750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 3023750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3024750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 3025750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3026750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 3027750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3028750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 3029750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3030750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 3031750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3032750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3033750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 3034750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 3035750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 3036750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3037750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 3038750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 3039750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 3040750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi, CC); 3041750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 3042750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 3043750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result, Tmp1, Tmp2)); 3044750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Result; 3045da06e9e665a1a94886541ed85e97315f58b357b0Nate Begeman Tmp2 = SDOperand(); 3046750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3047750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3048750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 3049750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 3050750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 3051750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 305235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 3053232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 3054232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 305535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 305635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 305735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 3058ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(DestVT); 305935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 306035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 306135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand Store = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 3062ed7b5babfbdc708c564266052ad3b0ce0a5726c5Chris Lattner SrcOp, FIPtr, DAG.getSrcValue(NULL)); 306335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 306435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner return DAG.getLoad(DestVT, Store, FIPtr, DAG.getSrcValue(0)); 306535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 306635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 3067ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 3068ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// support the operation, but do support the resultant packed vector type. 3069ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 3070ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3071ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 307287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 3073ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 307487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 3075ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (SDNode::op_iterator I = Node->op_begin()+1, E = Node->op_end(); 3076ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner I != E; ++I) { 307787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner if (I->getOpcode() != ISD::UNDEF) 3078ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 307987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner if (SplatValue != *I) 308087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 3081ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3082ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3083ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 3084ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 3085ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 3086ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 3087ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 3088ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 3089ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 3090ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3091ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 309287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner if (SplatValue.Val) { // Splat of one value? 309387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 309487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner MVT::ValueType MaskVT = 309587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner MVT::getIntVectorWithNumElements(Node->getNumOperands()); 309687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand Zero = DAG.getConstant(0, MVT::getVectorBaseType(MaskVT)); 309787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner std::vector<SDOperand> ZeroVec(Node->getNumOperands(), Zero); 309887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, ZeroVec); 309987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 310087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 310187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner if (TLI.isShuffleLegal(Node->getValueType(0), SplatMask)) { 310287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Get the splatted value into the low element of a vector register. 310387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand LowValVec = 310487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 310587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 310687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 310787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 310887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 310987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatMask); 311087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 311187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 311287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 3113ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the elements are all constants, turn this into a load from the constant 3114ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // pool. 3115ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isConstant = true; 3116ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (SDNode::op_iterator I = Node->op_begin(), E = Node->op_end(); 3117ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner I != E; ++I) { 3118ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!isa<ConstantFPSDNode>(I) && !isa<ConstantSDNode>(I) && 3119ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner I->getOpcode() != ISD::UNDEF) { 3120ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isConstant = false; 3121ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 3122ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3123ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3124ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3125ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create a ConstantPacked, and put it in the constant pool. 3126ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 3127ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 3128ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 3129ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 3130ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 3131ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 3132ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 3133ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 3134ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(ConstantFP::get(OpNTy, V->getValue())); 3135ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 3136ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 3137ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(ConstantUInt::get(OpNTy, V->getValue())); 3138ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 3139ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 3140ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 3141ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3142ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3143ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Constant *CP = ConstantPacked::get(CV); 3144ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 3145ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 3146ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner DAG.getSrcValue(NULL)); 3147ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3148ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3149ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 3150ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 3151ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 3152ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 3153ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 3154ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(VT); 3155ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3156ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 3157ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<SDOperand> Stores; 3158ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isLittleEndian = TLI.isLittleEndian(); 3159ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 3160ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 3161ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned VectorSize = MVT::getSizeInBits(VT)/8; 3162ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 3163ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 3164ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 3165ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 3166ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3167ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned Offset; 3168ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isLittleEndian) 3169ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Offset = TypeByteSize*i; 3170ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 3171ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Offset = TypeByteSize*(e-i-1); 3172ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3173ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 3174ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 3175ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3176ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Stores.push_back(DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 3177ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(i), Idx, 3178ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner DAG.getSrcValue(NULL))); 3179ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3180ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3181ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 3182ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 3183ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, Stores); 3184ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 3185ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 3186ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3187ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 3188ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getLoad(VT, StoreChain, FIPtr, DAG.getSrcValue(0)); 3189ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 3190ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3191ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// CreateStackTemporary - Create a stack temporary, suitable for holding the 3192ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// specified value type. 3193ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::CreateStackTemporary(MVT::ValueType VT) { 3194ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo(); 3195ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned ByteSize = MVT::getSizeInBits(VT)/8; 3196ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner int FrameIdx = FrameInfo->CreateStackObject(ByteSize, ByteSize); 3197ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getFrameIndex(FrameIdx, TLI.getPointerTy()); 3198ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 3199ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 32005b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 32015b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 32025b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 32035b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 32045b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 32055b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 32065b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 32075b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner std::vector<SDOperand> Ops; 32085b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Ops.push_back(LHSL); 32095b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Ops.push_back(LHSH); 32105b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Ops.push_back(Amt); 3211cc0675a4be9a5133abd48ee272ff999ae48feabfChris Lattner std::vector<MVT::ValueType> VTs(2, LHSL.getValueType()); 3212e89083a9300dc463e3b79eabe2b9913d85338d28Chris Lattner Lo = DAG.getNode(NodeOp, VTs, Ops); 32135b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 32145b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 32155b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 32165b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 3217e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 3218e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 3219e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 3220e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 3221e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 3222e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 3223e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 3224e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 3225f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 3226e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 3227f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 3228f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 3229f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 3230f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 3231f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 3232f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Handle the case when Amt is an immediate. Other cases are currently broken 3233f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // and are disabled. 3234f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 3235f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 3236f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 3237f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 3238f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 3239f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 3240f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 3241f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3242f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 3243f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 3244f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3245f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 3246f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 3247ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3248ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 3249ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 3250f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3251f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 3252f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 3253f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 3254f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 3255f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3256f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3257f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 3258f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3259f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 3260f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 3261f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3262f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 3263f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 3264ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3265ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 3266ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 3267f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3268f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 3269f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 3270f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 3271f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 3272f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3273f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3274f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 3275f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3276edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 3277f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 3278f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3279edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 3280f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 3281edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 3282f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 3283ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3284ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 3285edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 3286ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 3287f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3288f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 3289f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 3290f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 3291f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 3292f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3293f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3294f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3295f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3296f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 3297e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 329877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 32999c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 330077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 330177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 330277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 330377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 330477e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 330577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi) { 33066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 33076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 33086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 33096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 33106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 33116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 331277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 331377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 331477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 331577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 331677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Args.push_back(std::make_pair(Node->getOperand(i), ArgTy)); 331777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 331877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 3319edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 33200d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 332177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 33220d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 3323adf6a965a321372c640845407195594835921eb4Chris Lattner TLI.LowerCallTo(InChain, RetTy, false, CallingConv::C, false, 3324adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 33250d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 33266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 33276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 33286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 33296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 333099c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 33310d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 333277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 333377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 3334456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 333599c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 333677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 333799c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 333899c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 333977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 334022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 334122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 334222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 334322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 334422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandIntToFP - Expand a [US]INT_TO_FP operation, assuming that the 334522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// destination type is legal. 334622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 334722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 334822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(isTypeLegal(DestTy) && "Destination type is not legal!"); 334922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 335022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 335122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 335222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 335322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 335422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 335522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 335622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 335722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 335822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 335922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 336022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 336122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 336222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 336322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 336422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 336522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 336622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 336722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 336822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 336922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 337022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 337122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 337222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 337322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 337422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 337522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static Constant *FudgeFactor = ConstantUInt::get(Type::ULongTy, FF); 337622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 337722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 337822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 337922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 338022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 338122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 338222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getSrcValue(NULL)); 338322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 338422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unexpected conversion"); 338522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 338622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx, DAG.getSrcValue(NULL), MVT::f32); 338722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 338822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 338922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 339022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 339122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 339222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 339322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 339422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 339522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 339622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 339722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 339822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 339922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 340022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 340122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 340222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 340322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 340422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 340522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 340622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 340722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 340822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 340922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 341022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 341122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 341222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner const char *FnName = 0; 341322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 341422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FnName = "__floatdisf"; 341522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 341622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 341722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FnName = "__floatdidf"; 341822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 34196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 34206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 34216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 342225125697fb0a761da440b222671cf2d6d4deaeacChris Lattner return ExpandLibCall(FnName, Source.Val, UnusedHiPart); 342322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 342422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 342522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 342622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 342722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 342822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 342922cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 343022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 343122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 343222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 343322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 343422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 343522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get the stack frame index of a 8 byte buffer 343622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 343722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, 8); 343822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 343922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 344022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 344122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 344222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 344322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Hi, Lo; 344422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) { 344522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Hi = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot, WordOff); 344622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Lo = StackSlot; 344722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 344822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Hi = StackSlot; 344922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot, WordOff); 345022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 345122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 345222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 345322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 345422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 345522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 345622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 345722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 345822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 345922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 346022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 346122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Store1 = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 346222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped, Lo, DAG.getSrcValue(NULL)); 346322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 346422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 346522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 346622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Store2 = DAG.getNode(ISD::STORE, MVT::Other, Store1, 346722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner InitialHi, Hi, DAG.getSrcValue(NULL)); 346822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 346922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, 347022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getSrcValue(NULL)); 347122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 347222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 347322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 347422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 347522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 347622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 347722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 347822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 347922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 348022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 348122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 348222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 348322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 348422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 348522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if f32 then cast to f32 348622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f32, Sub); 348722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 348822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 348922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 349022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 349122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 349222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 349322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 349422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 349522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 349622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 349722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 349822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 349922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 350022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 350122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 350222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 350322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 350422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 350522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 350622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 350722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 350822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 350922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 351022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 351122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 351222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static Constant *FudgeFactor = ConstantUInt::get(Type::ULongTy, FF); 351322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 351422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 351522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 351622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 351722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 351822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 351922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getSrcValue(NULL)); 352022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 352122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestVT == MVT::f64 && "Unexpected conversion"); 352222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, 352322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 352422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getSrcValue(NULL), MVT::f32)); 352522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 352622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 352722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 352822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 352922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 353022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 353122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 353222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 353322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 353422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 353522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 353622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 353722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 353822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 353922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 354022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 354122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 354222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 354322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 354422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 354522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 354622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 354722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 354822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 354922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 355022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 355122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 355222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 355322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 355422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 355522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 355622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 355722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 355822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 355922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 356022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 356122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 356222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 356322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 356422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 356522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 356622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 356722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 356822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 356922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 357022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 357122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 357222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 357322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 357422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 357522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 357622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 357722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 357822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 357922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 358022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 358122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 358222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 358377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 358477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 358522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 358622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 358722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 358822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 358922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 359022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 359122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 359222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 359322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 359422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 35959c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 359622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 3597e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 359822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 359922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 360022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 360122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 360266de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 360322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 360422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 360522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 360622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 360722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 360822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 360922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 361022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 361122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 361222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 361322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 361422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 3615e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 361622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 361722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 361822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 361922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 362022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 362122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 362222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 362322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 362422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 362522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 3626e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 362722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 36280d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 362922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 3630a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 3631a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 363222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Truncate the result of the 363322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // extended FP_TO_*INT operation to the desired size. 363422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, 363522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(OpToUse, NewOutTy, LegalOp)); 363622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 363713689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 363822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 363922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 364022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 364122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 364222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 364322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 364422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 364522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 364622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 364722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 364822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 364922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 365022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 365122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 365222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 365322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 365422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 365522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 365622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 365722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 365822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 365922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 366022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 366122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 366222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 366322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 366422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 366522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 366622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 366722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 366822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 366922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 367022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 367122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 367222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 367322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 367422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 367522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 367622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 367722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 367822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 367922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 368022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 368122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 36820d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 368377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 3684edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 368522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 368622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 368722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 368822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 368922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 369022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 369122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 369222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 369322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 369422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 369522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 369622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 369722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 369822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned len = getSizeInBits(VT); 369922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 370022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 370122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 370222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 370322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 370422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 370522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 370622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 370722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 370822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 370922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 371022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 371122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 371222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 371322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 371422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 371522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 371622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 371722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 371822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 371922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 372022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 372122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned len = getSizeInBits(VT); 372222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 372322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 372422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 372522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 372622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 372722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 372822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 372922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 373022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 373122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 373222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 373322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 373422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 373522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 373622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 373722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 373822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 373922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 374022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 374122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 374222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 374322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(getSizeInBits(VT), VT), 374422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 374522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 374622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 374722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 374822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 3749e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 3750e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 37513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 37523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 37533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 37543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 37553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 37563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 37573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 375871c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 37593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 37603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 3761ab48be377298bd509427a29e174cf4e305138819Nate Begeman assert((MVT::isInteger(VT) || VT == MVT::Vector) && 3762ab48be377298bd509427a29e174cf4e305138819Nate Begeman "Cannot expand FP values!"); 3763ab48be377298bd509427a29e174cf4e305138819Nate Begeman assert(((MVT::isInteger(NVT) && NVT < VT) || VT == MVT::Vector) && 37643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 37653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 37666fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 37676fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 37686fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 37696fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 37706fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 37716fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 37726fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 37733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 37743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 37753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 3776348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 3777348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 3778348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 37793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::cerr << "NODE: "; Node->dump(); std::cerr << "\n"; 37803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 37813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 3782fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3783fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 3784fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 3785fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 37863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 37873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 37883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 37893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 37903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 37913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 3792d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 37938137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 37948137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 37958137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 3796d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 379758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 379858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 379958f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 380058f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner // Sign extend the lo-part. 380158f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 380258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 380358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 380458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner // sext_inreg the low part if needed. 380558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 380658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 3807d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 3808d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 3809d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 3810d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 3811d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 3812d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 3813d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3814d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3815d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3816edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 3817edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 38189b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 38199b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 38209b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 3821edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 3822edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 3823edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 382439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 382539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 38263becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 382739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 382839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 38297cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 38307cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 383139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 383239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 383339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 383439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 383539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 383639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 383739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 383839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 383939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 384039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 38413becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 384239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 384339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 38447cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 38457cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 384639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 384739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 384839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 384939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 385039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 385139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 385239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 3853edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3854acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 38558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 38568137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 3857acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 3858acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 3859acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3860acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 38618137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 3862acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 3863acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 3864acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 3865acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3866acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3867acc398c195a697795bff3245943d104eb19192b9Nate Begeman 38683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 38698137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 38708137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 38712d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth Lo = DAG.getLoad(NVT, Ch, Ptr, Node->getOperand(2)); 38723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 38733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Increment the pointer to the other half. 387438d6be5d49e61e4be9bb12ee3cedf2a4fcddb8f3Chris Lattner unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 38753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 38763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner getIntPtrConstant(IncrementSize)); 38778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // FIXME: This creates a bogus srcvalue! 38782d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth Hi = DAG.getLoad(NVT, Ch, Ptr, Node->getOperand(2)); 3879ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner 3880ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner // Build a factor node to remember that this load is independent of the 3881ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner // other one. 3882ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 3883ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner Hi.getValue(1)); 3884edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 38853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remember that we legalized the chain. 38868137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 38873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (!TLI.isLittleEndian()) 38883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::swap(Lo, Hi); 38893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 38903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 38913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 38923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 38933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 38943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 38953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 38963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 38973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 38983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 38993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 39003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 39013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 3902456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 39033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 39043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 3905456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 3906456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 39073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 39083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 39099373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 39109373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 39119373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 39129373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 39139373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 39149373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 39159373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 39169373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TH, FH, Node->getOperand(4)); 39179373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 39189373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 3919144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman case ISD::SEXTLOAD: { 39208137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Chain = Node->getOperand(0); 39218137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); 3922144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman MVT::ValueType EVT = cast<VTSDNode>(Node->getOperand(3))->getVT(); 3923144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman 3924144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman if (EVT == NVT) 3925144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Lo = DAG.getLoad(NVT, Chain, Ptr, Node->getOperand(2)); 3926144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman else 3927144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Lo = DAG.getExtLoad(ISD::SEXTLOAD, NVT, Chain, Ptr, Node->getOperand(2), 3928144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman EVT); 39299ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 39309ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner // Remember that we legalized the chain. 39318137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 39329ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 3933144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman // The high part is obtained by SRA'ing all but one of the bits of the lo 3934144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman // part. 3935144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 3936144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Hi = DAG.getNode(ISD::SRA, NVT, Lo, DAG.getConstant(LoSize-1, 3937144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman TLI.getShiftAmountTy())); 3938144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman break; 3939144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman } 3940144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman case ISD::ZEXTLOAD: { 39418137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Chain = Node->getOperand(0); 39428137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); 3943144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman MVT::ValueType EVT = cast<VTSDNode>(Node->getOperand(3))->getVT(); 3944144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman 3945144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman if (EVT == NVT) 3946144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Lo = DAG.getLoad(NVT, Chain, Ptr, Node->getOperand(2)); 3947144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman else 3948144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Lo = DAG.getExtLoad(ISD::ZEXTLOAD, NVT, Chain, Ptr, Node->getOperand(2), 3949144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman EVT); 39509ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 39519ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner // Remember that we legalized the chain. 39528137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 39539ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 3954144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman // The high part is just a zero. 39558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getConstant(0, NVT); 39569ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner break; 39579ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner } 39589ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner case ISD::EXTLOAD: { 39598137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Chain = Node->getOperand(0); 39608137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); 39619ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(Node->getOperand(3))->getVT(); 39629ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 39639ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner if (EVT == NVT) 39649ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner Lo = DAG.getLoad(NVT, Chain, Ptr, Node->getOperand(2)); 39659ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner else 39669ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner Lo = DAG.getExtLoad(ISD::EXTLOAD, NVT, Chain, Ptr, Node->getOperand(2), 39679ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner EVT); 39689ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 39699ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner // Remember that we legalized the chain. 39708137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 39719ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 39729ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner // The high part is undefined. 39738137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 3974144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman break; 3975144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman } 39768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 397713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 39788137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 397913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 398013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 398113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 39823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 39833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 39843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 39858137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 3986edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 39873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 39883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 39892dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 39908137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 39918137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 39923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 39933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 39948137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 39953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 39963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 39978137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 3998edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 39993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 40003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 40013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 400235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 400335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 400435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand Tmp = ExpandBIT_CONVERT(Node->getValueType(0), 400535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0)); 400635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 400735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 400835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 4009f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 40108137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::READCYCLECOUNTER: 4011308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 4012308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 4013308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 40148137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = TLI.LowerOperation(Op, DAG); 40158137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner assert(Lo.Val && "Node must be custom expanded!"); 40168137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Lo.getValue(1); 4017308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 40188137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner LegalizeOp(Lo.getValue(2))); 4019f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 4020f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 40214e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 40224e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 40234e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner case ISD::FP_TO_SINT: 402480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 4025f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 4026f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 4027f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 40288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 40298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 4030f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 4031d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 4032f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 4033f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 403480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 403580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 403607dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 403707dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 403807dffd6af673c73352150583150b242a93694f00Chris Lattner break; 403907dffd6af673c73352150583150b242a93694f00Chris Lattner } 404080a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 4041d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 40424e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 404377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixsfdi", Node, Hi); 40444e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 404577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixdfdi", Node, Hi); 40464e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 4047d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 40484e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner case ISD::FP_TO_UINT: 404980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 40508137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 40518137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 40528137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 40538137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 40548137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 40558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 40568137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 40578137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 40588137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 40598137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 406007dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 406107dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 406207dffd6af673c73352150583150b242a93694f00Chris Lattner break; 406307dffd6af673c73352150583150b242a93694f00Chris Lattner } 406480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 4065d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 40664e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 406777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixunssfdi", Node, Hi); 40684e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 406977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixunsdfdi", Node, Hi); 40704e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 40714e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 407205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 407350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 4074348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 407550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 40768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 407750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 407850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 407950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 408050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 408150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 408250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 408350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 408450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 408550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 4086e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 4087348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 4088e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 40894759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 40904759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 409105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 409205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 409305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 409405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 4095348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 40964759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 40974759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 40984759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 4099e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 410077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__ashldi3", Node, Hi); 4101e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 410205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 4103e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 410405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 410550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 4106348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 410750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 41088137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 410950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 411050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 411150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 411250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 411350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 411450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 411550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 411650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 411750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 4118e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 4119348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 4120e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 41214759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 41224759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 412305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 412405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 412505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 412605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 4127348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 41284759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 41294759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 41304759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 4131e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 413277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__ashrdi3", Node, Hi); 4133e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 413405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 413505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 413605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 413750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 4138348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 413950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 41408137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 414150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 414250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 414350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 414450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 414550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 414650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 414750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 414850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 414950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 4150e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 4151348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 4152e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 41534759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 41544759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 415505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 415605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 415705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 415805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 4159348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 41604759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 41614759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 41624759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 4163e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 416477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__lshrdi3", Node, Hi); 4165e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 416605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 4167e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 4168edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 41698137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 41708137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 41718137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 41728137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 41738137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 41748137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 41758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 41768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 41778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 41788137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 41798137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 41808137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 41818137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 41828137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 41838137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 4184551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman std::vector<MVT::ValueType> VTs; 4185551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman std::vector<SDOperand> LoOps, HiOps; 4186551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman VTs.push_back(LHSL.getValueType()); 4187551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman VTs.push_back(MVT::Flag); 4188551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman LoOps.push_back(LHSL); 4189551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman LoOps.push_back(RHSL); 4190551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman HiOps.push_back(LHSH); 4191551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman HiOps.push_back(RHSH); 4192551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 4193551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Lo = DAG.getNode(ISD::ADDC, VTs, LoOps); 4194551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman HiOps.push_back(Lo.getValue(1)); 4195551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Hi = DAG.getNode(ISD::ADDE, VTs, HiOps); 4196551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 4197551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Lo = DAG.getNode(ISD::SUBC, VTs, LoOps); 4198551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman HiOps.push_back(Lo.getValue(1)); 4199551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Hi = DAG.getNode(ISD::SUBE, VTs, HiOps); 4200551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 420184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 42028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 4203c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 4204c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner if (TLI.isOperationLegal(ISD::MULHU, NVT)) { 4205c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 4206c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 4207c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 420856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman unsigned SH = MVT::getSizeInBits(RH.getValueType())-1; 420956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // MULHS implicitly sign extends its inputs. Check to see if ExpandOp 421056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // extended the sign bit of the low half through the upper half, and if so 421156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // emit a MULHS instead of the alternate sequence that is valid for any 421256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // i64 x i64 multiply. 421356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman if (TLI.isOperationLegal(ISD::MULHS, NVT) && 421456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is RH an extension of the sign bit of RL? 421556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOpcode() == ISD::SRA && RH.getOperand(0) == RL && 421656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOperand(1).getOpcode() == ISD::Constant && 421756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(RH.getOperand(1))->getValue() == SH && 421856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is LH an extension of the sign bit of LL? 421956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOpcode() == ISD::SRA && LH.getOperand(0) == LL && 422056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOperand(1).getOpcode() == ISD::Constant && 422156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(LH.getOperand(1))->getValue() == SH) { 422256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 422356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } else { 422456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 422556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 422656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 422756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 422856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 422956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 4230c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 4231c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } else { 42329c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Lo = ExpandLibCall("__muldi3" , Node, Hi); 4233c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 4234c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 4235c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 423677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::SDIV: Lo = ExpandLibCall("__divdi3" , Node, Hi); break; 423777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::UDIV: Lo = ExpandLibCall("__udivdi3", Node, Hi); break; 423877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::SREM: Lo = ExpandLibCall("__moddi3" , Node, Hi); break; 423977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::UREM: Lo = ExpandLibCall("__umoddi3", Node, Hi); break; 42403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 42413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 424283397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 424383397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 424483397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 424583397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 424683397363348662e9352455ea1e6e88e7026300a4Chris Lattner Hi = LegalizeOp(Hi); 424783397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 424805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 424905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 425005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng bool isNew = 425105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 425205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 42533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 42543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 4255c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// SplitVectorOp - Given an operand of MVT::Vector type, break it down into 4256c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// two smaller values of MVT::Vector type. 4257c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 4258c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 4259c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Cannot split non-vector type!"); 4260c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 4261c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = cast<ConstantSDNode>(*(Node->op_end()-2))->getValue(); 4262c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 4263c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NewNumElts = NumElements/2; 4264c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand NewNumEltsNode = DAG.getConstant(NewNumElts, MVT::i32); 4265c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TypeNode = *(Node->op_end()-1); 4266c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4267c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 4268c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 4269c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 4270c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 4271c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 4272c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 4273c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 4274c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4275c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4276c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 42774794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner default: assert(0 && "Unknown vector operation!"); 4278b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::VBUILD_VECTOR: { 4279c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::vector<SDOperand> LoOps(Node->op_begin(), Node->op_begin()+NewNumElts); 4280c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(NewNumEltsNode); 4281c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(TypeNode); 4282b2827b0901162169bb2692b77a839c9767849134Chris Lattner Lo = DAG.getNode(ISD::VBUILD_VECTOR, MVT::Vector, LoOps); 4283c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4284c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::vector<SDOperand> HiOps(Node->op_begin()+NewNumElts, Node->op_end()-2); 4285c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(NewNumEltsNode); 4286c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(TypeNode); 4287b2827b0901162169bb2692b77a839c9767849134Chris Lattner Hi = DAG.getNode(ISD::VBUILD_VECTOR, MVT::Vector, HiOps); 4288c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4289c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4290c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 4291c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 4292c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 4293c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 4294c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 4295c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 4296c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 4297c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: { 4298c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 4299c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 4300c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 4301c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4302c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getNode(Node->getOpcode(), MVT::Vector, LL, RL, 4303c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 4304c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getNode(Node->getOpcode(), MVT::Vector, LH, RH, 4305c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 4306c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4307c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4308c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 4309c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 4310c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 4311c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(TypeNode)->getVT(); 4312c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4313c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 4314c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned IncrementSize = NewNumElts * MVT::getSizeInBits(EVT)/8; 4315c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 4316c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 4317c7029805ef35ce9805931067b841e6af11db382eChris Lattner // FIXME: This creates a bogus srcvalue! 4318c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 4319c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4320c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 4321c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 4322c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 4323c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 4324c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4325c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 4326c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 4327c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (!TLI.isLittleEndian()) 4328c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::swap(Lo, Hi); 4329c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4330c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4331c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4332c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4333c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 4334c7029805ef35ce9805931067b841e6af11db382eChris Lattner bool isNew = 4335c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 4336c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already expanded?!?"); 4337c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4338c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4339c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4340c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// PackVectorOp - Given an operand of MVT::Vector type, convert it into the 4341c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// equivalent operation that returns a scalar (e.g. F32) or packed value 4342c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// (e.g. MVT::V4F32). When this is called, we know that PackedVT is the right 4343c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// type for the result. 4344c7029805ef35ce9805931067b841e6af11db382eChris LattnerSDOperand SelectionDAGLegalize::PackVectorOp(SDOperand Op, 4345c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType NewVT) { 43461c6191ffe764f3294cc2dda2bb3703403a416414Chris Lattner // FIXME: THIS IS A TEMPORARY HACK 43471c6191ffe764f3294cc2dda2bb3703403a416414Chris Lattner if (Op.getValueType() == NewVT) return Op; 4348384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 4349c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Bad PackVectorOp invocation!"); 4350c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 4351c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4352c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already packed it. 4353c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, SDOperand>::iterator I = PackedNodes.find(Op); 4354c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != PackedNodes.end()) return I->second; 4355c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4356c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 4357c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 43582332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 43592332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->dump(); std::cerr << "\n"; 43602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner assert(0 && "Unknown vector operation in PackVectorOp!"); 4361c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 4362c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 4363c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 4364c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 4365c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 4366c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 4367c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 4368c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: 4369c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.getNode(getScalarizedOpcode(Node->getOpcode(), NewVT), 4370c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 4371c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(0), NewVT), 4372c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(1), NewVT)); 4373c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4374c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 43754794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SDOperand Ch = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 43764794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SDOperand Ptr = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 4377c7029805ef35ce9805931067b841e6af11db382eChris Lattner 43784794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner Result = DAG.getLoad(NewVT, Ch, Ptr, Node->getOperand(2)); 4379c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4380c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 4381c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4382c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4383c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4384b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::VBUILD_VECTOR: 4385c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (!MVT::isVector(NewVT)) { 4386b2827b0901162169bb2692b77a839c9767849134Chris Lattner // Returning a scalar? 4387c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = Node->getOperand(0); 4388c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4389b2827b0901162169bb2692b77a839c9767849134Chris Lattner // Returning a BUILD_VECTOR? 4390c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()-2); 4391b2827b0901162169bb2692b77a839c9767849134Chris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, NewVT, Ops); 4392c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4393c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 43942332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::VINSERT_VECTOR_ELT: 43952332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (!MVT::isVector(NewVT)) { 43962332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // Returning a scalar? Must be the inserted element. 43972332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Node->getOperand(1); 43982332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } else { 43992332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT, 44002332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner PackVectorOp(Node->getOperand(0), NewVT), 44012332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getOperand(1), Node->getOperand(2)); 44022332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 44032332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 4404c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4405c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4406c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 4407c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 4408c7029805ef35ce9805931067b841e6af11db382eChris Lattner bool isNew = PackedNodes.insert(std::make_pair(Op, Result)).second; 4409c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already packed?"); 4410c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 4411c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4412c7029805ef35ce9805931067b841e6af11db382eChris Lattner 44133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 44143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 44153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 44169c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 44173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 44183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 4419456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 44203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 44213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 4422