LegalizeDAG.cpp revision c7029805ef35ce9805931067b841e6af11db382e
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 16377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandLibCall(const char *Name, SDNode *Node, 16477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 16577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 16677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 167cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 16835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand ExpandBIT_CONVERT(MVT::ValueType DestVT, SDOperand SrcOp); 1696269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 1706269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 1716269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 1725a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 1735a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 1741618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 1751618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 17600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 177456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 178456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 179e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 180e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 1815b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 1825b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 183b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 1843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand getIntPtrConstant(uint64_t Val) { 1853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return DAG.getConstant(Val, TLI.getPointerTy()); 1863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 1883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 1893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 190c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// getScalarizedOpcode - Return the scalar opcode that corresponds to the 191c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// specified vector opcode. 192b89175feffa7148c05d1d30a8e382b8d321edae5Chris Lattnerstatic unsigned getScalarizedOpcode(unsigned VecOp, MVT::ValueType VT) { 1935fbb5d2459a5410590f285250faa604576308a93Nate Begeman switch (VecOp) { 1945fbb5d2459a5410590f285250faa604576308a93Nate Begeman default: assert(0 && "Don't know how to scalarize this opcode!"); 1953e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VADD: return MVT::isInteger(VT) ? ISD::ADD : ISD::FADD; 1963e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VSUB: return MVT::isInteger(VT) ? ISD::SUB : ISD::FSUB; 1973e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VMUL: return MVT::isInteger(VT) ? ISD::MUL : ISD::FMUL; 1983e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VSDIV: return MVT::isInteger(VT) ? ISD::SDIV: ISD::FDIV; 1993e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VUDIV: return MVT::isInteger(VT) ? ISD::UDIV: ISD::FDIV; 2003e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VAND: return MVT::isInteger(VT) ? ISD::AND : 0; 2013e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VOR: return MVT::isInteger(VT) ? ISD::OR : 0; 2023e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VXOR: return MVT::isInteger(VT) ? ISD::XOR : 0; 2035fbb5d2459a5410590f285250faa604576308a93Nate Begeman } 2045fbb5d2459a5410590f285250faa604576308a93Nate Begeman} 2053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2069c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2079c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2089c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2096a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 21332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner/// ComputeTopDownOrdering - Add the specified node to the Order list if it has 21432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner/// not been visited yet and if all of its operands have already been visited. 21532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattnerstatic void ComputeTopDownOrdering(SDNode *N, std::vector<SDNode*> &Order, 21632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner std::map<SDNode*, unsigned> &Visited) { 21732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner if (++Visited[N] != N->getNumOperands()) 21832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner return; // Haven't visited all operands yet 21932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 22032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner Order.push_back(N); 22132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 22232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner if (N->hasOneUse()) { // Tail recurse in common case. 22332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner ComputeTopDownOrdering(*N->use_begin(), Order, Visited); 22432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner return; 22532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 22632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 22732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Now that we have N in, add anything that uses it if all of their operands 22832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // are now done. 22932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); UI != E;++UI) 23032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner ComputeTopDownOrdering(*UI, Order, Visited); 23132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 23232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 2331618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 2343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 2356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 2366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 2376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 238ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 239ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 240ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 241ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 24232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 24332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 24432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner std::map<SDNode*, unsigned> Visited; 24532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner std::vector<SDNode*> Order; 246ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 24732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 24832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // entry node) that have no operands. 24932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 25032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner E = DAG.allnodes_end(); I != E; ++I) { 251de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner if (I->getNumOperands() == 0) { 252de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner Visited[I] = 0 - 1U; 253de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner ComputeTopDownOrdering(I, Order, Visited); 254ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner } 255ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner } 256ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 257de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner assert(Order.size() == Visited.size() && 258de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner Order.size() == 259de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 26032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner "Error: DAG is cyclic!"); 26132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner Visited.clear(); 262ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 263c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 264c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 26532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 26632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 2673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 26832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 26932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 2703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 2723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 27371c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 274c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 275c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackedNodes.clear(); 2763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 27862fd269c146d9023efe32644e44cd97b88631d4fChris Lattner DAG.RemoveDeadNodes(OldRoot.Val); 2793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 2826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 2836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 2846831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 2856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 2866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 2876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 2886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 2896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 2906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 2916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 2926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 2936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 2946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 2956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 2966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 2976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 2986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 2996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 3146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3246831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 3256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 3266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 3276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 3296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 3306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 3316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 3346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 3356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 3366831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, 3376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *Dest) { 3386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 3396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 3416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 3426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 3436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 3446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 3456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 3476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 3486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 3506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 3516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 3556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 3596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest); 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (OperandsLeadToDest) return true; 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(N, 0)); 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner PromoteOp(SDOperand(N, 0)); 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: { 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand X, Y; 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner ExpandOp(SDOperand(N, 0), X, Y); 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 380c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// HandleOp - Legalize, Promote, Expand or Pack the specified operand as 381c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 382c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 383c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (getTypeAction(Op.getValueType())) { 384c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 385c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Legal: LegalizeOp(Op); break; 386c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Promote: PromoteOp(Op); break; 387c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 388c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (Op.getValueType() != MVT::Vector) { 389c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 390c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 391c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 392c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *N = Op.Val; 393c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumOps = N->getNumOperands(); 394c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = 395c7029805ef35ce9805931067b841e6af11db382eChris Lattner cast<ConstantSDNode>(N->getOperand(NumOps-2))->getValue(); 396c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(N->getOperand(NumOps-1))->getVT(); 397c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType PackedVT = getVectorType(EVT, NumElements); 398c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (PackedVT != MVT::Other && TLI.isTypeLegal(PackedVT)) { 399c7029805ef35ce9805931067b841e6af11db382eChris Lattner // In the common case, this is a legal vector type, convert it to the 400c7029805ef35ce9805931067b841e6af11db382eChris Lattner // packed operation and type now. 401c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Op, PackedVT); 402c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else if (NumElements == 1) { 403c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Otherwise, if this is a single element vector, convert it to a 404c7029805ef35ce9805931067b841e6af11db382eChris Lattner // scalar operation. 405c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Op, EVT); 406c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 407c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Otherwise, this is a multiple element vector that isn't supported. 408c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Split it in half and legalize both parts. 409c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 410c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 411c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 412c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 413c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 414c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 415c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 418c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// LegalizeOp - We know that the specified value has a legal type. 419c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// Recursively ensure that the operands have legal types, then return the 420c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// result. 4213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 422c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 423e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 42445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 425e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 4263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 427e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 42845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 42945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 430c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 431c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 4323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 433c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 43403c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 4353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 4363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 4373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 43845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 43945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 440e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::map<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 441e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 4423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 4439373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 4443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 445456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 446456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 448948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 449948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 450948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 451948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 452948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 453948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 4543181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 4553181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantVec: 456948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 457948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 458948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 459948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 460948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 461948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 462948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 463948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 464948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner assert(TLI.isOperationLegal(Node->getValueType(0), Node->getValueType(0)) && 465948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 466948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 4673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 468d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 469d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 470d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 471d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner std::vector<SDOperand> Ops; 472d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner bool Changed = false; 473d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 474d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 475d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Changed = Changed || Node->getOperand(i) != Ops.back(); 476d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 477d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Changed) 478d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getNumValues() == 1) 479d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Result = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Ops); 480d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner else { 481d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner std::vector<MVT::ValueType> VTs(Node->value_begin(), 482d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Node->value_end()); 483d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Result = DAG.getNode(Node->getOpcode(), VTs, Ops); 484d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 485d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 486d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 487d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 488d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 489d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 490d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 4913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::cerr << "NODE: "; Node->dump(); std::cerr << "\n"; 4923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 4933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 4943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 49503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 49669a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::ConstantPool: // Nothing to do. 4970c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 4980c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 499948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 500948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 501948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 502948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 5030c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 5040c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 5050c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 5063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 50708951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 50808951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 50908951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 510c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 51108951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 512308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 513c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 514456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 515456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 51669a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 51769a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 5187310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 519f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 520c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 5217310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 522f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 523c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 524f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 525c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 526c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 527c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 528c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 5297310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 5307310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 53113c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 53213c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 53313c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 53413c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 53513c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 536fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 537fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 538fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 539ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 540ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 541fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 542fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 543fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 544fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstantFP(0, VT); 545fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 546fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 547fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 548ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 549fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 550fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 551fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 552fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 55336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 55436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 55536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 55636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 55736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 55836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 55936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 56036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 561f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 562b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey MachineDebugInfo *DebugInfo = DAG.getMachineDebugInfo(); 563abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 564abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LABEL = TLI.isOperationLegal(ISD::DEBUG_LABEL, MVT::Other); 565abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 566abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (DebugInfo && (useDEBUG_LOC || useDEBUG_LABEL)) { 567abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 568e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 569abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 570e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 571063e765345fd49df0f53b807e57ada7c2ded7e16Jim Laskey unsigned SrcFile = DebugInfo->RecordSource(DirName, FName); 572abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 573abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey std::vector<SDOperand> Ops; 574abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 575abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 576abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 577abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 578abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 579abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 580abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 581abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 582abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, Ops); 583abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 584d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 585d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 586abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey unsigned ID = DebugInfo->RecordLabel(Line, Col, SrcFile); 587abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 588abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Result = DAG.getNode(ISD::DEBUG_LABEL, MVT::Other, Ops); 589abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 590e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 591e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 592e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 59336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 594e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 59536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 5969ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 5979ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 59836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner std::vector<SDOperand> Ops; 59936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 6009ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 6019ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 6029ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 6039ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 6049ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 6059ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 6069ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 6079ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 60836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 60936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 610c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 61136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 61236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 61336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 61436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 615f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 616f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 617abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 618f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 619f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 620abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 621abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 622abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 623abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 624abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 625c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 626abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 627abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 628abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 629abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 630abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case ISD::DEBUG_LABEL: 631abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid DEBUG_LABEL node!"); 632abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LABEL, MVT::Other)) { 633abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 634abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 635abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 636abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 637c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 638f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 639f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 640551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 64136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 6423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: 6433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 6443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 6453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // FIXME: Maybe we should handle things like targets that don't support full 6473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // 32-bit immediates? 6483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 6493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 6503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 6513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 6523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 6533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 6543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 6553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 6573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 6583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 6593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 6603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 6613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 6623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 6633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 6643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6653181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 6663181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 6673181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = DAG.getTargetConstantFP(CFP->getValue(), CFP->getValueType(0)); 6683181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 6693181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 6703181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 6713181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 6723181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 6733181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 6743181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 6753181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 6763181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 6773181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 6783181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 6793181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 6803181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 6813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Otherwise we need to spill the constant to memory. 6823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool Extend = false; 6833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 684456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // If a FP immediate is precise when represented as a float and if the 685456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // target can do an extending load from float to double, we put it into 686456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // the constant pool as a float, even if it's is statically typed as a 687456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // double. 6883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = CFP->getValueType(0); 6893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isDouble = VT == MVT::f64; 6903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFP *LLVMC = ConstantFP::get(isDouble ? Type::DoubleTy : 6913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Type::FloatTy, CFP->getValue()); 69299939d39c9555ebecbcd24c1b607eae52804ea37Chris Lattner if (isDouble && CFP->isExactlyValue((float)CFP->getValue()) && 69399939d39c9555ebecbcd24c1b607eae52804ea37Chris Lattner // Only do this if the target has a native EXTLOAD instruction from 69499939d39c9555ebecbcd24c1b607eae52804ea37Chris Lattner // f32. 695c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner TLI.isOperationLegal(ISD::EXTLOAD, MVT::f32)) { 6963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LLVMC = cast<ConstantFP>(ConstantExpr::getCast(LLVMC, Type::FloatTy)); 6973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner VT = MVT::f32; 6983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Extend = true; 6993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 700edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 701456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 702f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner if (Extend) { 7035f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 7045f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner CPIdx, DAG.getSrcValue(NULL), MVT::f32); 705f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner } else { 70652d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner Result = DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 70752d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner DAG.getSrcValue(NULL)); 708f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner } 7093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 7113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7128ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner case ISD::ConstantVec: 7138ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner switch (TLI.getOperationAction(ISD::ConstantVec, Node->getValueType(0))) { 7148ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner default: assert(0 && "This action is not supported yet!"); 7158ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner case TargetLowering::Custom: 7168ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 7178ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner if (Tmp3.Val) { 7188ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner Result = Tmp3; 7198ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner break; 7208ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner } 7218ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner // FALLTHROUGH 7228ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner case TargetLowering::Expand: 7238ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner // We assume that vector constants are not legal, and will be immediately 7248ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner // spilled to the constant pool. 7258ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner // 7268ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner // Create a ConstantPacked, and put it in the constant pool. 7278ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner MVT::ValueType VT = Node->getValueType(0); 7288ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner const Type *OpNTy = 7298ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 7308ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner std::vector<Constant*> CV; 7318ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner if (MVT::isFloatingPoint(VT)) { 7328ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 7338ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner double V = cast<ConstantFPSDNode>(Node->getOperand(i))->getValue(); 7348ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner CV.push_back(ConstantFP::get(OpNTy, V)); 7358ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner } 7368ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner } else { 7378ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 7388ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner uint64_t V = cast<ConstantSDNode>(Node->getOperand(i))->getValue(); 7398ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner CV.push_back(ConstantUInt::get(OpNTy, V)); 7408ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner } 7418ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner } 7428ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner Constant *CP = ConstantPacked::get(CV); 7438ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 7448ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner Result = DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 7458ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner DAG.getSrcValue(NULL)); 7468ca05e0c302e15d6365afd2a0ea5fe15c9e85758Chris Lattner break; 7478cfa57b1b4eade4e0101195b2f94ab288cd03563Nate Begeman } 7488cfa57b1b4eade4e0101195b2f94ab288cd03563Nate Begeman break; 749040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 750040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 751c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 752c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 753c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 754c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 755c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 756c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 757c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 758c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 759040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 760040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner std::vector<SDOperand> Ops; 761040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 762c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 763c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 764c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 765a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 766a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 767a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner 7686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 7696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 7706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 7716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 7726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 7736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 7746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 7756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node); 7766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 7776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 7786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 7796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 7806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 7816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 7826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 7836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 7846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 7856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 7866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 7876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 7886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()); 7896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 7906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 7916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 7926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 7936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 7944b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 7954b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 7964b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 7974b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 7986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 7996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 8006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 8016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 8026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 8036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 8046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 8056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 8066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 8076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 8086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 8096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 8106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 8116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 8126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 81316cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 8146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 8156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 8166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 8176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 8186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner std::map<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 8196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 8206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 8216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 8226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 8236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 8246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 8256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 8263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 82770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 82870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 82970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 83070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 83170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()); 83270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 83370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 83470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 83570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 83670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 83770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 83870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 83970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()); 84070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 84170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 84270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 84370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 8446a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 8454b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 8466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 8476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 8484b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 8494b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 8504b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 8514b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 8524b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 8534b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 854a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 855fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 856fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 857fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 858c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 859fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 860c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 8615f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 862a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 863a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng Node->getValueType(0))) { 864a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 865903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 866903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 867903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 868903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 869903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 870903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 871903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, Node->getValueType(0)); 872903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp1 = DAG.getNode(ISD::SUB, Node->getValueType(0), SP, Size); // Value 873903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp2 = DAG.getCopyToReg(SP.getValue(1), SPReg, Tmp1); // Output chain 874c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 875c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 876903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 877903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 878903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 8795f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 8805f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 881c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 882c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 883a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 884903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 885a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 886903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 887a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 888903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 889903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 890c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 891c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 892903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 893a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 894ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner case ISD::INLINEASM: 895ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize Chain. 896ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Tmp2 = Node->getOperand(Node->getNumOperands()-1); 897c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp2.getValueType() == MVT::Flag) // Legalize Flag if it exists. 898ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Tmp2 = Tmp3 = SDOperand(0, 0); 899ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner else 900ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Tmp3 = LegalizeOp(Tmp2); 901ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 902ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner if (Tmp1 != Node->getOperand(0) || Tmp2 != Tmp3) { 903ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()); 904ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner Ops[0] = Tmp1; 905c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) Ops.back() = Tmp3; 906c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 907ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner } 908ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 909ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 910c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 911ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 912ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 913c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 914c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 9156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 9166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 9176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 9186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 9196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 920c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 921c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 922c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner 923c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 924c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 9256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 9266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 9276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 9286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 9296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 93047e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 93147e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 93247e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 93347e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 93447e9223e06390897c3834f8c527001df392570ffChris Lattner break; 93547e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 93647e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 93747e9223e06390897c3834f8c527001df392570ffChris Lattner break; 93847e9223e06390897c3834f8c527001df392570ffChris Lattner } 939456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 940456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 941c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 9427cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 9437cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 9447cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 945456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 946456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 947456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 948456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 949456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 9507cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 9517cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 9527cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 9537cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 9547cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 9557cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 9567cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 9577cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 958550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // Make sure the condition is either zero or one. It may have been 959550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // promoted from something else. 96019c5c4cca9edd0e1e2961879d3da164325af6d63Chris Lattner unsigned NumBits = MVT::getSizeInBits(Tmp2.getValueType()); 96119c5c4cca9edd0e1e2961879d3da164325af6d63Chris Lattner if (!TLI.MaskedValueIsZero(Tmp2, (~0ULL >> (64-NumBits))^1)) 96219c5c4cca9edd0e1e2961879d3da164325af6d63Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 963550b1e59c4eb5db020766012b1406fc56833251dChris Lattner 9647cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 9657cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 9667cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 9677cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 9687cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 9697cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 9707cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 9717cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 9727cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 9737cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 9746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 9756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 9766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 9776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 9786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 979750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 980750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 981750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 982181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 983750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 984750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 985750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 986750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 987750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 988750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 989750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 990750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 991750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 992750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 993750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 994750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 995456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 996181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 997181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 998456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 999456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1000456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1001456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1002181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 10037cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1004c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1005f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 10063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 10073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 10082d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1009f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1010c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1011c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(0); 1012c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = Result.getValue(1); 1013456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1014f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1015f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng default: assert(0 && "This action is not supported yet!"); 1016c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner case TargetLowering::Legal: break; 1017456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1018c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = TLI.LowerOperation(Tmp2, DAG); 1019456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 1020c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp1); 1021c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Tmp1.getValue(1)); 1022f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1023c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1024f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1025c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Since loads produce two values, make sure to remember that we 1026c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // legalized both of them. 1027c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp2); 1028c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp3); 1029c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp3 : Tmp2; 1030f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 10310f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::EXTLOAD: 10320f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::SEXTLOAD: 103301ff7216dd7829d4094754086baf28aa2d7149acChris Lattner case ISD::ZEXTLOAD: { 10340f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 10350f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 10360f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 10375f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner MVT::ValueType SrcVT = cast<VTSDNode>(Node->getOperand(3))->getVT(); 103801ff7216dd7829d4094754086baf28aa2d7149acChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), SrcVT)) { 103901ff7216dd7829d4094754086baf28aa2d7149acChris Lattner default: assert(0 && "This action is not supported yet!"); 10401c51c6ac13b5e68b099605021784c7f552dcce3cChris Lattner case TargetLowering::Promote: 10411c51c6ac13b5e68b099605021784c7f552dcce3cChris Lattner assert(SrcVT == MVT::i1 && "Can only promote EXTLOAD from i1 -> i8!"); 1042c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2), 1043c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner DAG.getValueType(MVT::i8)); 1044c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1045c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1046c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1047456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1048456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1049456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 105001ff7216dd7829d4094754086baf28aa2d7149acChris Lattner case TargetLowering::Legal: 1051c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2), 1052c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3)); 1053c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1054c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1055456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1056456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1057456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp3 = TLI.LowerOperation(Tmp3, DAG); 1058456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp3.Val) { 1059c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1060c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1061456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1062456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1063c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 106401ff7216dd7829d4094754086baf28aa2d7149acChris Lattner case TargetLowering::Expand: 106569a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 10669d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 10679d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, Node->getOperand(2)); 106831559081a4285f4b7282e765aea4ec8a8e1d396cAndrew Lenharth Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1069c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1070c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Load.getValue(1)); 1071c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 10729d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 107301ff7216dd7829d4094754086baf28aa2d7149acChris Lattner assert(Node->getOpcode() != ISD::EXTLOAD && 107401ff7216dd7829d4094754086baf28aa2d7149acChris Lattner "EXTLOAD should always be supported!"); 107501ff7216dd7829d4094754086baf28aa2d7149acChris Lattner // Turn the unsupported load into an EXTLOAD followed by an explicit 107601ff7216dd7829d4094754086baf28aa2d7149acChris Lattner // zero/sign extend inreg. 10775f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 10785f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Tmp1, Tmp2, Node->getOperand(2), SrcVT); 107923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner SDOperand ValRes; 108023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SEXTLOAD) 108123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 108215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, DAG.getValueType(SrcVT)); 108323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner else 108423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1085c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1086c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1087c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 108801ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 1089c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Since loads produce two values, make sure to remember that we legalized 1090c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // both of them. 1091c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1092c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1093c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 109401ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 10955dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 10965dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 10975dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1098c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 10995dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 11005dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 11015dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 11025dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 11035dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 11045dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 11055dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 11065dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 11075dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 11085dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 11095dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 11105dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 11115dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 11125dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 11135dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 11145dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 11155dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 11165dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 11175dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 11185dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 11195dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 11205dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 11213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 11225dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 11233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 11243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 11253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1126edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1127c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1128d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 11297310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1130d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1131f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1132c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 11337310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1134f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1135c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1136f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1137c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1138c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1139c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1140c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 11417310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 11427310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 11437310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 11447310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1145c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 11467310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1147c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 11487310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 11493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 11503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 11513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 11523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 11536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 11556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 11566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 11576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 11586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 11603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 2: // ret val 11613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 11623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 11633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1164c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 11653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 11663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 11673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 11683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), Lo, Hi); 11693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Hi); 1170edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 11713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 11723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 11738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 1174c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1175c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 11768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 11773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 11783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 11793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1180c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 11813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 11823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 11833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::vector<SDOperand> NewValues; 11843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 11853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (unsigned i = 1, e = Node->getNumOperands(); i != e; ++i) 11863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 11873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 11884e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 11893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 11903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 11913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 11923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 11933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 11943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Hi); 1195edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 11963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 11973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 11988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 11993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1200c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1201c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 1202c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, NewValues); 1203c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 1204c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, NewValues); 12053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 12063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 12073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 120817c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 12096862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 12106862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 12116862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 12126862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 12136862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 12146862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 12156862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 12166862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 12176862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 121817c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 12193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1220f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 12213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 12223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); // Legalize the pointer. 12233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 12245d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 1225456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 122606ac6ab938cf54596202de851da4b20aa61fe64eChris Lattner // FIXME: move this to the DAG Combiner! 122703c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (ConstantFPSDNode *CFP =dyn_cast<ConstantFPSDNode>(Node->getOperand(1))){ 12285d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner if (CFP->getValueType(0) == MVT::f32) { 1229c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = DAG.getConstant(FloatToBits(CFP->getValue()), MVT::i32); 12305d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner } else { 12315d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner assert(CFP->getValueType(0) == MVT::f64 && "Unknown FP type!"); 1232c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = DAG.getConstant(DoubleToBits(CFP->getValue()), MVT::i64); 12335d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner } 1234c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::STORE, MVT::Other, Tmp1, Tmp3, Tmp2, 1235c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3)); 12366a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner break; 12375d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner } 12385d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner 12393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 12403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: { 1241c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(1)); 1242c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 1243c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3)); 1244f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng 1245c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner MVT::ValueType VT = Tmp3.getValueType(); 1246456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (TLI.getOperationAction(ISD::STORE, VT)) { 1247456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "This action is not supported yet!"); 1248456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1249456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1250456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1251456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1252456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1253f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 12543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 12553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 12563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 125703c8546ec57523970874917854a2fb77b1ff598eChris Lattner // Truncate the value and store the result. 125803c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(1)); 125903c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Tmp1, Tmp3, Tmp2, 12602d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth Node->getOperand(3), 12619fadb4c1c0a6d223aa468f9f72f8c2562dc66839Chris Lattner DAG.getValueType(Node->getOperand(1).getValueType())); 126203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 126303c8546ec57523970874917854a2fb77b1ff598eChris Lattner 12643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: 1265c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned IncrementSize = 0; 12663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 1267c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1268ab48be377298bd509427a29e174cf4e305138819Nate Begeman // If this is a vector type, then we have to calculate the increment as 1269ab48be377298bd509427a29e174cf4e305138819Nate Begeman // the product of the element size in bytes, and the number of elements 1270ab48be377298bd509427a29e174cf4e305138819Nate Begeman // in the high half of the vector. 1271c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (Node->getOperand(1).getValueType() == MVT::Vector) { 1272c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *InVal = Node->getOperand(1).Val; 1273c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElems = 1274c7029805ef35ce9805931067b841e6af11db382eChris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 1275c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 1276c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1277c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Figure out if there is a Packed type corresponding to this Vector 1278c7029805ef35ce9805931067b841e6af11db382eChris Lattner // type. If so, convert to the packed type. 1279c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 1280c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 1281c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Turn this into a normal store of the packed type. 1282c7029805ef35ce9805931067b841e6af11db382eChris Lattner Tmp3 = PackVectorOp(Node->getOperand(1), TVT); 1283c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 1284c7029805ef35ce9805931067b841e6af11db382eChris Lattner Node->getOperand(3)); 1285c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 1286c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else if (NumElems == 1) { 1287c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Turn this into a normal store of the scalar type. 1288c7029805ef35ce9805931067b841e6af11db382eChris Lattner Tmp3 = PackVectorOp(Node->getOperand(1), EVT); 1289c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 1290c7029805ef35ce9805931067b841e6af11db382eChris Lattner Node->getOperand(3)); 1291c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 1292c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 1293c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), Lo, Hi); 1294c7029805ef35ce9805931067b841e6af11db382eChris Lattner IncrementSize = NumElems/2 * MVT::getSizeInBits(EVT)/8; 1295c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 1296ab48be377298bd509427a29e174cf4e305138819Nate Begeman } else { 1297c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Node->getOperand(1), Lo, Hi); 1298ab48be377298bd509427a29e174cf4e305138819Nate Begeman IncrementSize = MVT::getSizeInBits(Hi.getValueType())/8; 1299ab48be377298bd509427a29e174cf4e305138819Nate Begeman } 1300c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1301c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (!TLI.isLittleEndian()) 1302c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::swap(Lo, Hi); 1303c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1304c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getNode(ISD::STORE, MVT::Other, Tmp1, Lo, Tmp2, 1305c7029805ef35ce9805931067b841e6af11db382eChris Lattner Node->getOperand(3)); 13063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 13073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner getIntPtrConstant(IncrementSize)); 13083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(isTypeLegal(Tmp2.getValueType()) && 13093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Pointers must be legal!"); 1310456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FIXME: This sets the srcvalue of both halves to be the same, which is 1311456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // wrong. 1312edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getNode(ISD::STORE, MVT::Other, Tmp1, Hi, Tmp2, 1313edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Node->getOperand(3)); 1314ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 1315ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner break; 13163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 13173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1318f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 131995762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 132095762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1321c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 132295762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 1323140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 1324140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1325c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1326c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1327c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1328456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1329140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 1330140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1331456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1332456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1333c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1334c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 1335c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1336c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1337140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1338456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1339140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 13404f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 13414f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 13424f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 1343c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 13444f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 1345c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 13464f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 1347c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 1348c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 13494f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1350456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1351140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1352456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1353456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 1354456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 1355c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1356c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1357c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1358456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1359140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 1360140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1361140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 1362c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1363140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 1364140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 1365140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1366456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1367456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1368456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1369456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1370140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1371140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 13724f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 13734f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 13744f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 13754f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 13764f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 13774f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 13784f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1379140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1380140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1381140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1382140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 138351b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 138451b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 1385c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 138649c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 138749c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 138849c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 1389c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 139049c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1391c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 1392f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 1393f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::TRUNCSTORE: { 13940f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13950f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the pointer. 13960f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 1397456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(isTypeLegal(Node->getOperand(1).getValueType()) && 1398456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner "Cannot handle illegal TRUNCSTORE yet!"); 1399456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1400456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1401456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // The only promote case we handle is TRUNCSTORE:i1 X into 1402456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // -> TRUNCSTORE:i8 (and X, 1) 1403456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (cast<VTSDNode>(Node->getOperand(4))->getVT() == MVT::i1 && 1404456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TLI.getOperationAction(ISD::TRUNCSTORE, MVT::i1) == 1405456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TargetLowering::Promote) { 1406456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Promote the bool to a mask then store. 1407456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = DAG.getNode(ISD::AND, Tmp2.getValueType(), Tmp2, 1408456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(1, Tmp2.getValueType())); 1409456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Tmp1, Tmp2, Tmp3, 1410456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(3), DAG.getValueType(MVT::i8)); 1411456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1412456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } else if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1) || 1413456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp3 != Node->getOperand(2)) { 1414c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 1415c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 1416456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1417456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1418456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType StVT = cast<VTSDNode>(Result.Val->getOperand(4))->getVT(); 1419456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (TLI.getOperationAction(Result.Val->getOpcode(), StVT)) { 1420456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "This action is not supported yet!"); 1421456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1422456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1423456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1424456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 14250f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 14260f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner } 14270f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 1428f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 14292ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 143047e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 143147e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 143247e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 143347e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 143447e9223e06390897c3834f8c527001df392570ffChris Lattner break; 143547e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 143647e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 143747e9223e06390897c3834f8c527001df392570ffChris Lattner break; 143847e9223e06390897c3834f8c527001df392570ffChris Lattner } 14393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 14402ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 144155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 1442c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1443456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1444b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 144555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 1446456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1447456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 1448456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1449456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1450456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1451456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 14529373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 14539373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 14549373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 14559373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 14569373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 14579373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 1458550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // Make sure the condition is either zero or one. It may have been 1459550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // promoted from something else. 14600e753d617be1ff6a9ac0f894da9d2544e2489850Chris Lattner unsigned NumBits = MVT::getSizeInBits(Tmp1.getValueType()); 14610e753d617be1ff6a9ac0f894da9d2544e2489850Chris Lattner if (!TLI.MaskedValueIsZero(Tmp1, (~0ULL >> (64-NumBits))^1)) 14620e753d617be1ff6a9ac0f894da9d2544e2489850Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 14639373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 14649373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 14659373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 14669373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 146755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 146855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 146955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 147055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 147155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 147255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner if (MVT::isInteger(Tmp2.getValueType())) { 1473456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 1474456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 147555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 1476456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 1477456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 147855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 147955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 148055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 148155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 148255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 148355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 148455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 148555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 148655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 148755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 14883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1489750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 1490750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 1491750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 14929373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 14939373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 1494750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 14959373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 1496750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 1497750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1498750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1499750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1500750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1501750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 1502750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 1503750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 1504750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1505750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 1506750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1507750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 1508750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 1509750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 1510750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 1511750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 1512750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 1513750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 15149373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 15159373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 15169373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 1517750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 15183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 1519750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 1520750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 1521750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 1522750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 1523750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1524750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 1525750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 1526750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 1527750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 1528750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 15293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 15303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1531b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 153273e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 1533456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 1534456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1535456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1536456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 1537456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 1538c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1539456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1540456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1541456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp3.Val) Result = Tmp3; 1542456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1543b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 1544ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 1545ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 1546ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 1547ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 1548ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 1549ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType OldVT = NewInTy; 1550ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 1551ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 1552ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 1553ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 1554ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 1555ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 1556ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 1557ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 1558ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 1559ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 1560ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 15611ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 1562ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 1563ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 1564ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 1565ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 1566ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 1567ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 1568ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 1569ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 1570c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1571c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1572c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1573433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 15745e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 1575ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 1576b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 1577b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 1578b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 1579b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 1580b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 1581b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 1582b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Node->getOperand(2)); 1583b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 1584b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 15853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1586e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 1587e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 1588e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 1589deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 1590e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 1591e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 1592e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 1593e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 1594e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 1595e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 1596deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1597e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1598e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 1599deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 1600e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1601e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 1602e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 1603edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 1604e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 1605272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 1606272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 1607272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 16086814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 16096814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 16106814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 16116814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner ExpandOp(Node->getOperand(3), HiPart, Tmp4); 16126814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 16136814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 1614e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 1615e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 1616e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1617e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 1618e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 1619272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 1620272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 1621272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 1622272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 1623272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 1624272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 1625272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 1626272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 1627272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 1628272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 1629e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 1630e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1631e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 163255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 163355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 163455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 1635456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1636456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1637456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 163855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 1639c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, Tmp5); 1640456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1641456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1642456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1643456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 164455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 164555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 1646e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 1647e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 1648e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 1649e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner const Type *IntPtrTy = TLI.getTargetData().getIntPtrType(); 1650e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::vector<std::pair<SDOperand, const Type*> > Args; 1651e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 16523bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 1653e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 1654e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp2, IntPtrTy)); 1655dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 1656dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 1657dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 1658dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 1659dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 1660dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 1661e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp3, Type::IntTy)); 1662e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp4, IntPtrTy)); 1663e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 1664e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 1665e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 1666e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 1667e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp2, IntPtrTy)); 1668e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp3, IntPtrTy)); 1669e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp4, IntPtrTy)); 1670e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 1671e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 1672e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 1673e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 167445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 1675e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 1676adf6a965a321372c640845407195594835921eb4Chris Lattner TLI.LowerCallTo(Tmp1, Type::VoidTy, false, CallingConv::C, false, 1677e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 1678456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 167955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 168055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 1681e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 1682e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 1683e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 168452d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 16855b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 16865b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 16875b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 168884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner std::vector<SDOperand> Ops; 168984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 169084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 169184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 169284f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 169384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 1694c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 1695c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Ops); 16962c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 169705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 169805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 169905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 1700456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1701456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1702456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1703456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 1704456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 170505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 1706456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 170705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 170805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 170912f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 171005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 1711269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 171205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 171305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 171405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 171505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 171605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 17172c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 17182c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 17192c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 17202c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 17212c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 172284f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 17232c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 17242c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 17253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 17263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 17273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 1728c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 1729c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 17303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 17313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 17323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 17333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 17343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 173503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 173603c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 173703c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 173801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 173901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 174001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 174101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 17423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 1743f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 1744f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 1745f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 1746f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 1747f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 1748f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 1749f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 1750f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 1751f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 1752c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1753c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1754456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1755e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1756456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Operation not supported"); 1757456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1758456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1759456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1760456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 176157030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 1762e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 17633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1764a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 1765a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 1766a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 1767a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 1768a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 1769a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 1770a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 1771a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 1772a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 1773a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 1774a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 1775a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 1776a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 1777a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1778a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 1779a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1780a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 1781a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 1782a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1783a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 17848f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 1785a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 1786a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Expand: 17878f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // If this target supports fabs/fneg natively, do this efficiently. 17888f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner if (TLI.isOperationLegal(ISD::FABS, Tmp1.getValueType()) && 17898f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner TLI.isOperationLegal(ISD::FNEG, Tmp1.getValueType())) { 17908f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 17918f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 17928f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 17938f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 17948f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 17958f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 17968f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 17978f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 17988f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 17998f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 18008f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 18018f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 18028f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 18038f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 18048f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 18058f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 18068f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 18078f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 18088f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 18098f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 18108f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // copysign -> copysignf/copysign libcall. 1811a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner const char *FnName; 1812a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Node->getValueType(0) == MVT::f32) { 1813a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner FnName = "copysignf"; 1814a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp2.getValueType() != MVT::f32) // Force operands to match type. 1815a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, 1816a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner DAG.getNode(ISD::FP_ROUND, MVT::f32, Tmp2)); 1817a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } else { 1818a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner FnName = "copysign"; 1819a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp2.getValueType() != MVT::f64) // Force operands to match type. 1820a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, 1821a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner DAG.getNode(ISD::FP_EXTEND, MVT::f64, Tmp2)); 1822a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 1823a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner SDOperand Dummy; 1824a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 1825a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 1826a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 1827a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 1828a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 1829551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 1830551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 1831551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 1832551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 1833551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1834551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 1835551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 1836551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1837551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1838551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 1839edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1840551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 1841551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 1842551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 1843551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 1844551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 1845551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1846551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 1847551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 1848551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1849551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1850551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 1851551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 1852419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 1853419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 1854419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 1855419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 1856419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 1857419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 1858456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 1859456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1860456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 1861419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 1862419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 1863419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 1864419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 1865419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 1866419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 1867419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 1868419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 1869419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 1870419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 1871456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 1872419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 1873419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 1874419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 1875419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 1876419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 1877c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 1878c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 187901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 1880c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 1881c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 1882456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1883c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1884456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 1885456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1886456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1887456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 188857030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 1889c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1890456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1891456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1892456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1893456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 189457030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 18954c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner case TargetLowering::Expand: 18964c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner if (MVT::isInteger(Node->getValueType(0))) { 1897456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // X % Y -> X-X/Y*Y 18984c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner MVT::ValueType VT = Node->getValueType(0); 1899456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner unsigned Opc = Node->getOpcode() == ISD::UREM ? ISD::UDIV : ISD::SDIV; 19004c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner Result = DAG.getNode(Opc, VT, Tmp1, Tmp2); 19014c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 19024c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 19034c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner } else { 19044c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner // Floating point mod -> fmod libcall. 19054c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner const char *FnName = Node->getValueType(0) == MVT::f32 ? "fmodf":"fmod"; 19064c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner SDOperand Dummy; 19079c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 1908c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 1909c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 1910c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 1911c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 1912acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 1913acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1914acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 1915acc398c195a697795bff3245943d104eb19192b9Nate Begeman 19165c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 1917acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 1918acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 1919456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1920456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1921456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 1922acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 1923c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1924c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 1925456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 1926456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1927456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1928456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 1929456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 1930456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 1931456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 1932456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1933456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1934acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 1935acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 1936acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 1937acc398c195a697795bff3245943d104eb19192b9Nate Begeman Node->getOperand(2)); 1938acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 1939acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 1940acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 1941acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 1942acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 1943acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::STORE, MVT::Other, VAList.getValue(1), Tmp3, Tmp2, 1944acc398c195a697795bff3245943d104eb19192b9Nate Begeman Node->getOperand(2)); 1945acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 1946acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = DAG.getLoad(VT, Tmp3, VAList, DAG.getSrcValue(0)); 1947456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 1948acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 1949acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 1950acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 1951acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 1952acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 1953acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 1954acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 1955456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 1956456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 1957acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 1958acc398c195a697795bff3245943d104eb19192b9Nate Begeman 1959acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 1960acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1961acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 1962acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 1963acc398c195a697795bff3245943d104eb19192b9Nate Begeman 1964acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 1965acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 1966456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1967456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1968456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 1969acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 1970c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 1971c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 1972456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1973456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1974456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1975456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1976acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 1977acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 1978acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 1979acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 1980acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, Node->getOperand(3)); 1981acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = DAG.getNode(ISD::STORE, MVT::Other, Tmp4.getValue(1), Tmp4, Tmp2, 1982acc398c195a697795bff3245943d104eb19192b9Nate Begeman Node->getOperand(4)); 1983acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 1984acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 1985acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 1986acc398c195a697795bff3245943d104eb19192b9Nate Begeman 1987acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 1988acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1989acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 1990acc398c195a697795bff3245943d104eb19192b9Nate Begeman 1991acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 1992acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 1993456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1994456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1995456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 1996acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 1997c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1998456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1999456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 2000456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2001456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2002acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2003acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2004acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 2005acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2006acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2007acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2008acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2009acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 2010acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2011acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2012acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2013c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2014c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2015acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 2016acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2017456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2018456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2019456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2020456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2021acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2022acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2023acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2024acc398c195a697795bff3245943d104eb19192b9Nate Begeman 202535ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 202635ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 202735ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 202835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2029456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2030456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 2031456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner "Cannot handle this yet!"); 2032c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 203335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 203435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 2035d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2036d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2037d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2038456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2039456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 2040456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2041c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2042456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2043456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 2044456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 2045456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2046456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner unsigned DiffBits = getSizeInBits(NVT) - getSizeInBits(OVT); 2047456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2048456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2049456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2050456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2051456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 2052456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2053456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2054456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 2055456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 2056456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2057d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 2058d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2059d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 2060691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2061691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2062691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2063691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2064691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2065456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: assert(0 && "Cannot custom handle this yet!"); 2066691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 2067c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2068691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2069691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 2070691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 2071691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2072edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 2073edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 2074691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2075691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 2076691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 2077456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2078691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2079691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 2080691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2081691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2082691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 20837cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 20847cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner DAG.getConstant(getSizeInBits(NVT), NVT), 20857cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 208600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2087691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth DAG.getConstant(getSizeInBits(OVT),NVT), Tmp1); 2088691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2089691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2090456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 209100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 209200b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen DAG.getConstant(getSizeInBits(NVT) - 2093691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth getSizeInBits(OVT), NVT)); 2094691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2095691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2096691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2097691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2098691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 2099456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 2100691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2101691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2102691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 210300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 21042c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 21052c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 21062c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 2107da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 2108da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 2109da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 21102c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 21112c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2112456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2113456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 211459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 211559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 21162c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 2117c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 211859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 211959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 212059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 212159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 21222c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 21232c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 2124456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2125456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 2126456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 21272c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 21282c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 2129456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 2130f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2131f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 21324af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 21334af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 21344af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 21357cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 21364af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 21374af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 2138f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2139f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 2140f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 2141f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 2142f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 2143f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2144f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner const char *FnName = 0; 2145f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 2146f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: FnName = VT == MVT::f32 ? "sqrtf" : "sqrt"; break; 2147f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: FnName = VT == MVT::f32 ? "sinf" : "sin"; break; 2148f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: FnName = VT == MVT::f32 ? "cosf" : "cos"; break; 2149f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 2150f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 21512ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 21529c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 2153f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2154f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 21552c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 21562c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 21572c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 21582c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 215935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 216035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 216167993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 216235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 216367993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 216435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 216535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 216635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 216735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 216835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 216935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 217035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 217135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2172c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 217335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 217435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 217535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 217635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 21772c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 2178fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 2179fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 2180fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 2181fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2182fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2183d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 2184fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 2185fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 2186456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2187456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2188456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2189456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2190456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2191c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2192456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2193456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2194456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2195456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2196456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2197fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 21986269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 21996269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 22006269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 2201456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2202fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 2203fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 2204fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 2205fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 2206fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 22075b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 2208fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2209fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2210fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 2211fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 2212fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2213fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2214c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2215fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 2216c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 2217c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 2218fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 2219c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 2220c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 2221fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2222c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2223c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 2224fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2225fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2226fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2227fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2228fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 2229fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2230fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2231fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2232c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2233fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2234fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2235fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 2236fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 2237fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 2238fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 2239fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 2240fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2241fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2242fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 2243fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 2244fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2245fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2246fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2247d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 2248fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 2249fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 2250fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2251fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2252f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2253f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 22541618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 22551618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 2256456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2257456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2258456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2259456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2260c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2261456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2262456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2263456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2264456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2265456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2266456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2267456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 2268456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 2269456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 22701618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 2271d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 2272d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 2273d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 2274d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 2275d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman unsigned ShiftAmt = MVT::getSizeInBits(Node->getValueType(0))-1; 2276d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getConstantFP((double)(1ULL << ShiftAmt), VT); 2277d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 2278d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 2279d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 2280d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 228101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 2282d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 2283d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 2284d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 2285456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 2286456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2287d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 2288d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 2289d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 2290d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 22911618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 2292fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2293fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2294fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner assert(0 && "Shouldn't need to expand other operators here!"); 2295fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2296c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2297c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 2298c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 2299fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2300fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2301fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2302d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 230313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 23043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 23053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 230603c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_EXTEND: 230703c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_ROUND: 23083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2309456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 23103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 23113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2312c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 23133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 231403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 231503c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 231613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 2317c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2318c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 231913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 23201713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 23211713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 232213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 232323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 232423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 232503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 232603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 23271713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 232813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 23291713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 233015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 233115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 23321713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 233303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 23341713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 23351713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 23361713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 23371713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 23381713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 233903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 2340f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 2341f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 2342f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 234303c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 23443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 23453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23460f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 234723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 23480f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 234915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 235045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 235145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 235245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 235355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 235455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 235555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2356c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 235755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 235855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 235945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 236023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 236145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 236245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 236345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 236445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 236527ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 236645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 236745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 236845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 236945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 237045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 237145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // The only way we can lower this is to turn it into a STORETRUNC, 237245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 237345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 237445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 237545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 237645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 237745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 237845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned TySize = (unsigned)TLI.getTargetData().getTypeSize(Ty); 237945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned Align = TLI.getTargetData().getTypeAlignment(Ty); 238045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 2381edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 238245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MF.getFrameInfo()->CreateStackObject((unsigned)TySize, Align); 238345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 238445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, DAG.getEntryNode(), 238552d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner Node->getOperand(0), StackSlot, 23869fadb4c1c0a6d223aa468f9f72f8c2562dc66839Chris Lattner DAG.getSrcValue(NULL), DAG.getValueType(ExtraVT)); 23875f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 23885f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result, StackSlot, DAG.getSrcValue(NULL), 23895f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner ExtraVT); 239045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 239145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 239245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 239355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 239445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 23950f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 23963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 239745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 2398456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2399456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 2400456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 2401456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 24023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 240345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 240445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 240545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 24063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 24073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 24083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 24098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 24108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 24118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 24128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 241303c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 241403c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 241571c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 241603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 241703c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 241803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 241903c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 242003c8546ec57523970874917854a2fb77b1ff598eChris Lattner 242103c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 242203c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 242303c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 242403c8546ec57523970874917854a2fb77b1ff598eChris Lattner 24256fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner std::map<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 24266fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 242745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 242803c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 2429d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 2430d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 243103c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 243203c8546ec57523970874917854a2fb77b1ff598eChris Lattner std::cerr << "NODE: "; Node->dump(); std::cerr << "\n"; 243303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 243403c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 2435fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 2436fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 2437fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 243803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 2439ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 2440ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 2441ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 2442ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 244303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 244403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 244503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 244603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 244703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 244803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 2449ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 245082fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 2451c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 24527cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 24537cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 245482fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 245503c8546ec57523970874917854a2fb77b1ff598eChris Lattner 245603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 245703c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 245803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 245903c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 246003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 246103c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 246203c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 246303c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 246403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 2465e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 2466e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 2467e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 2468e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 2469e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 247003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 247179e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 247279e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 2473e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 247403c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 247503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 24768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 24778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 247813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 24798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 24808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 24818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 24828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 2483456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 24848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 24858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 24868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 24878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 24888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 24898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 2490595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 249115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 249213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 249323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 249423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 24958b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 24968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 24978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 249835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 249935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 250035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 250135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 250235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 25038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 25048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 25058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 25068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 25078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 25088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 25098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 25108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 2511456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 251215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 25138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 25148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 25158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 25168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 25178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 25188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 25198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 25208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 252177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 2522456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 25238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 25248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 25258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 25268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 25278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 25288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 252915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 253015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 25318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 253223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 253323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 253477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 253577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 25368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 25378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 253877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 253977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 254077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 254177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 254215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 254315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 254477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 25458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 25468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 25478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 25485e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 25495e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 25505e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 25515e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 25525e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 25538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 25548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 25558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 25568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 2557456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 25588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 25598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 25608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 25618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 25628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 25638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 25648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 25658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "not implemented"); 25668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 2567d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 2568d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 2569d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 2570d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 2571d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 2572d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 2573c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 2574b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 2575b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 2576d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 2577d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 2578d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 2579d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 25808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 25818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 25822c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 25832c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 25842c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 25852c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 25862c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 25872c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 25882c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 25892c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 25902c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 25912c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 2592da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 2593da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 2594da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 2595da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2596da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 2597da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 2598456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 259915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 260015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 2601da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 2602da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 260303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 260403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 260503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 26060f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 26078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 26080f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 26090f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 261001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 26110f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 26120f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 26130f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 26140f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 26150f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 261601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 261701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 261801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 261901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 262001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 262101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 262201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 262301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 262401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 262501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 262601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 262701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 26288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 26298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 263001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 263115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 263215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 26330f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 26340f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 26358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 26368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 26378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 26388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 26398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 26408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 264115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 264215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 264315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 264415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 26458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 26468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 26478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 26488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 26498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 265015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 265115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 26528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 265301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 265401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2655a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 265601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 265701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 265801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 265901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 266001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 266101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 2662a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 266301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 266401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 266501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 26668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 26678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 26688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 26698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 26708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 26718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 26728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 267323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 267423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 26758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 26768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 26788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 26798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2680456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 26818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 26838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 26848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 268515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 268615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 2687456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 26888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 26908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 26918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 269223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 2693456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 26948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 26950aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 26960aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 2697456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 2698456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 26990aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 27000aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 27010aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 27020aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 27030aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 27040aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Node->getOperand(2)); 27050aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 27060aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 27070aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 27080aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 27090aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 27100aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::STORE, MVT::Other, VAList.getValue(1), Tmp3, Tmp2, 27110aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Node->getOperand(2)); 27120aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 27130aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, 27140aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getSrcValue(0), VT); 27150aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 27160aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 2717456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 27180aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 27190aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 272003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::LOAD: 2721456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Node->getOperand(0), 2722456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Node->getOperand(2), VT); 272303c8546ec57523970874917854a2fb77b1ff598eChris Lattner // Remember that we legalized the chain. 2724456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 272503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 27264c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner case ISD::SEXTLOAD: 27274c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner case ISD::ZEXTLOAD: 27284c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner case ISD::EXTLOAD: 2729456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getExtLoad(Node->getOpcode(), NVT, Node->getOperand(0), 2730456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Node->getOperand(2), 27318136cdae60eaa30cea91f288f25564a417b19a84Chris Lattner cast<VTSDNode>(Node->getOperand(3))->getVT()); 27324c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 2733456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 27344c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 273503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 273603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 273703c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 2738456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 273903c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 27409373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 27419373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 27429373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 27439373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 2744456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 27459373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2746d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2747d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 2748d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2749d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2750d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2751d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman DAG.getConstant(getSizeInBits(NVT) - getSizeInBits(VT), 2752d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 2753d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2754fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 2755fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 2756fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 2757456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 2758456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 2759fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 2760fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 2761456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 2762fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 2763fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 2764fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 2765fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 2766456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 2767d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 27687cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner DAG.getConstant(getSizeInBits(NVT), NVT), ISD::SETEQ); 276900b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2770456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(getSizeInBits(VT), NVT), Tmp1); 2771fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 2772fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 2773fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 277400b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 277500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen DAG.getConstant(getSizeInBits(NVT) - 2776fecf095292991bdf9396fec474011446107f9813Andrew Lenharth getSizeInBits(VT), NVT)); 2777fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 2778fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 2779fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 278003c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 278103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 278203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 2783456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2784456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 2785456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 2786456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2787456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 278803c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 278903c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 279003c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 27913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2792750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 2793750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 2794750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 2795750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 2796750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 2797750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 2798750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 2799750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 2800750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 2801750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand Tmp1, Tmp2, Result; 2802750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2803750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 2804750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 2805750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 2806750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 2807750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2808750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 2809750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 2810750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 2811750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2812750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 2813750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 2814750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 2815750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 2816750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2817750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 2818750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 2819750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 2820750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 2821750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 2822750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 2823750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 2824750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 2825750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 2826750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 2827750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 2828750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 2829750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 2830750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 2831750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 2832750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 2833750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 2834750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2835750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 2836750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 2837750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 2838750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 2839750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 2840750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 2841750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 2842750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 2843750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2844750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2845750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2846750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2847750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Expand: 2848750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 2849750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 2850750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(RHS, RHSLo, RHSHi); 2851750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 2852750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 2853750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 2854750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 2855750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 2856750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 2857750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 2858750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 2859750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 2860750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2861750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2862750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2863750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 2864750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 2865750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 2866750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2867750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2868750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 2869750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 2870750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 2871750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 2872750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 2873750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 2874750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 2875750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 2876750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 2877750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 2878750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 2879750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2880750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2881750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 2882750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 2883750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 2884750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 2885750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 2886750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 2887750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 2888750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 2889750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 2890750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 2891750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 2892750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 2893750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2894750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2895750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 2896750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 2897750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 2898750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2899750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 2900750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 2901750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 2902750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi, CC); 2903750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 2904750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 2905750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result, Tmp1, Tmp2)); 2906750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Result; 2907da06e9e665a1a94886541ed85e97315f58b357b0Nate Begeman Tmp2 = SDOperand(); 2908750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2909750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2910750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 2911750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 2912750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 2913750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 291435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 2915232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 2916232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 291735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 291835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 291935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 292035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo(); 292135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner unsigned ByteSize = MVT::getSizeInBits(DestVT)/8; 2922232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner int FrameIdx = FrameInfo->CreateStackObject(ByteSize, ByteSize); 292335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand FIPtr = DAG.getFrameIndex(FrameIdx, TLI.getPointerTy()); 292435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 292535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 292635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand Store = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 2927ed7b5babfbdc708c564266052ad3b0ce0a5726c5Chris Lattner SrcOp, FIPtr, DAG.getSrcValue(NULL)); 292835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 292935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner return DAG.getLoad(DestVT, Store, FIPtr, DAG.getSrcValue(0)); 293035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 293135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 29325b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 29335b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 29345b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 29355b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 29365b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 29375b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 29385b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 29395b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner std::vector<SDOperand> Ops; 29405b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Ops.push_back(LHSL); 29415b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Ops.push_back(LHSH); 29425b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Ops.push_back(Amt); 2943cc0675a4be9a5133abd48ee272ff999ae48feabfChris Lattner std::vector<MVT::ValueType> VTs(2, LHSL.getValueType()); 2944e89083a9300dc463e3b79eabe2b9913d85338d28Chris Lattner Lo = DAG.getNode(NodeOp, VTs, Ops); 29455b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 29465b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 29475b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 29485b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 2949e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 2950e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 2951e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 2952e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 2953e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 2954e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 2955e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 2956e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 2957f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 2958e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 2959f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 2960f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 2961f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 2962f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 2963f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 2964f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Handle the case when Amt is an immediate. Other cases are currently broken 2965f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // and are disabled. 2966f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 2967f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 2968f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 2969f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 2970f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 2971f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 2972f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 2973f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 2974f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 2975f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 2976f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 2977f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 2978f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 2979ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 2980ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 2981ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 2982f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 2983f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 2984f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 2985f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 2986f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 2987f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 2988f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 2989f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 2990f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 2991f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 2992f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 2993f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 2994f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 2995f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 2996ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 2997ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 2998ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 2999f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3000f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 3001f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 3002f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 3003f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 3004f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3005f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3006f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 3007f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3008edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 3009f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 3010f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3011edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 3012f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 3013edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 3014f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 3015ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3016ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 3017edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 3018ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 3019f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3020f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 3021f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 3022f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 3023f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 3024f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3025f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3026f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3027f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3028f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 3029e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 303077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 30319c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 303277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 303377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 303477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 303577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 303677e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 303777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi) { 30386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 30396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 30406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 30416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 30426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 30436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 304477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 304577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 304677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 304777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 304877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Args.push_back(std::make_pair(Node->getOperand(i), ArgTy)); 304977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 305077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 3051edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 30520d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 305377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 30540d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 3055adf6a965a321372c640845407195594835921eb4Chris Lattner TLI.LowerCallTo(InChain, RetTy, false, CallingConv::C, false, 3056adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 30570d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 30586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 30596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 30606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 30616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 306299c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 30630d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 306477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 306577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 3066456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 306799c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 306877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 306999c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 307099c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 307177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 307222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 307322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 307422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 307522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 307622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandIntToFP - Expand a [US]INT_TO_FP operation, assuming that the 307722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// destination type is legal. 307822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 307922cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 308022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(isTypeLegal(DestTy) && "Destination type is not legal!"); 308122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 308222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 308322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 308422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 308522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 308622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 308722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 308822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 308922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 309022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 309122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 309222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 309322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 309422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 309522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 309622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 309722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 309822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 309922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 310022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 310122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 310222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 310322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 310422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 310522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 310622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 310722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static Constant *FudgeFactor = ConstantUInt::get(Type::ULongTy, FF); 310822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 310922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 311022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 311122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 311222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 311322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 311422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getSrcValue(NULL)); 311522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 311622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unexpected conversion"); 311722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 311822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx, DAG.getSrcValue(NULL), MVT::f32); 311922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 312022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 312122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 312222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 312322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 312422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 312522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 312622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 312722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 312822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 312922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 313022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 313122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 313222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 313322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 313422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 313522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 313622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 313722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 313822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 313922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 314022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 314122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 314222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 314322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 314422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner const char *FnName = 0; 314522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 314622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FnName = "__floatdisf"; 314722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 314822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 314922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FnName = "__floatdidf"; 315022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 31516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 31526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 31536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 315425125697fb0a761da440b222671cf2d6d4deaeacChris Lattner return ExpandLibCall(FnName, Source.Val, UnusedHiPart); 315522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 315622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 315722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 315822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 315922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 316022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 316122cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 316222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 316322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 316422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 316522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 316622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 316722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get the stack frame index of a 8 byte buffer 316822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 316922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, 8); 317022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 317122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 317222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 317322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 317422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 317522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Hi, Lo; 317622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) { 317722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Hi = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot, WordOff); 317822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Lo = StackSlot; 317922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 318022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Hi = StackSlot; 318122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot, WordOff); 318222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 318322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 318422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 318522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 318622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 318722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 318822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 318922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 319022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 319122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 319222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 319322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Store1 = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), 319422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped, Lo, DAG.getSrcValue(NULL)); 319522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 319622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 319722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 319822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Store2 = DAG.getNode(ISD::STORE, MVT::Other, Store1, 319922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner InitialHi, Hi, DAG.getSrcValue(NULL)); 320022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 320122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, 320222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getSrcValue(NULL)); 320322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 320422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 320522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 320622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 320722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 320822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 320922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 321022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 321122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 321222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 321322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 321422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 321522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 321622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 321722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if f32 then cast to f32 321822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f32, Sub); 321922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 322022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 322122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 322222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 322322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 322422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 322522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 322622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 322722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 322822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 322922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 323022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 323122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 323222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 323322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 323422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 323522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 323622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 323722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 323822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 323922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 324022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 324122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 324222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 324322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 324422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static Constant *FudgeFactor = ConstantUInt::get(Type::ULongTy, FF); 324522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 324622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 324722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 324822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 324922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 325022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 325122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getSrcValue(NULL)); 325222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 325322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestVT == MVT::f64 && "Unexpected conversion"); 325422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, 325522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 325622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getSrcValue(NULL), MVT::f32)); 325722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 325822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 325922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 326022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 326122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 326222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 326322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 326422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 326522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 326622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 326722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 326822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 326922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 327022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 327122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 327222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 327322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 327422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 327522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 327622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 327722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 327822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 327922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 328022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 328122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 328222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 328322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 328422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 328522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 328622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 328722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 328822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 328922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 329022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 329122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 329222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 329322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 329422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 329522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 329622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 329722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 329822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 329922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 330022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 330122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 330222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 330322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 330422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 330522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 330622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 330722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 330822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 330922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 331022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 331122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 331222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 331322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 331422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 331577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 331677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 331722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 331822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 331922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 332022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 332122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 332222cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 332322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 332422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 332522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 332622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 33279c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 332822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 3329e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 333022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 333122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 333222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 333322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 333466de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 333522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 333622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 333722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 333822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 333922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 334022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 334122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 334222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 334322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 334422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 334522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 334622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 3347e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 334822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 334922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 335022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 335122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 335222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 335322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 335422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 335522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 335622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 335722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 3358e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 335922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 33600d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 336122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 3362a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 3363a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 336422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Truncate the result of the 336522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // extended FP_TO_*INT operation to the desired size. 336622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, 336722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(OpToUse, NewOutTy, LegalOp)); 336822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 336913689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 337022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 337122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 337222cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 337322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 337422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 337522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 337622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 337722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 337822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 337922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 338022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 338122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 338222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 338322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 338422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 338522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 338622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 338722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 338822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 338922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 339022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 339122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 339222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 339322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 339422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 339522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 339622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 339722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 339822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 339922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 340022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 340122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 340222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 340322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 340422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 340522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 340622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 340722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 340822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 340922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 341022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 341122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 341222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 341322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 34140d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 341577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 3416edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 341722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 341822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 341922cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 342022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 342122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 342222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 342322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 342422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 342522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 342622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 342722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 342822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 342922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 343022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned len = getSizeInBits(VT); 343122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 343222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 343322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 343422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 343522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 343622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 343722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 343822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 343922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 344022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 344122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 344222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 344322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 344422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 344522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 344622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 344722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 344822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 344922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 345022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 345122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 345222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 345322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned len = getSizeInBits(VT); 345422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 345522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 345622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 345722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 345822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 345922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 346022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 346122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 346222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 346322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 346422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 346522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 346622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 346722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 346822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 346922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 347022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 347122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 347222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 347322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 347422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 347522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(getSizeInBits(VT), VT), 347622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 347722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 347822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 347922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 348022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 3481e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 3482e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 34833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 34843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 34853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 34863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 34873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 34883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 34893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 349071c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 34913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 34923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 3493ab48be377298bd509427a29e174cf4e305138819Nate Begeman assert((MVT::isInteger(VT) || VT == MVT::Vector) && 3494ab48be377298bd509427a29e174cf4e305138819Nate Begeman "Cannot expand FP values!"); 3495ab48be377298bd509427a29e174cf4e305138819Nate Begeman assert(((MVT::isInteger(NVT) && NVT < VT) || VT == MVT::Vector) && 34963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 34973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 34986fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 34996fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 35006fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 35016fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 35026fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 35036fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 35046fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 35053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 35063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 35073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 3508348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 3509348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 3510348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 35113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::cerr << "NODE: "; Node->dump(); std::cerr << "\n"; 35123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 35133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 3514fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3515fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 3516fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 3517fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 35183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 35193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 35203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 35213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 35223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 35233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 3524d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 35258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 35268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 35278137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 3528d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 352958f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 353058f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 353158f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 353258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner // Sign extend the lo-part. 353358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 353458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 353558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 353658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner // sext_inreg the low part if needed. 353758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 353858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 3539d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 3540d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 3541d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 3542d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 3543d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 3544d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 3545d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3546d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3547d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3548edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 3549edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 35509b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 35519b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 35529b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 3553edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 3554edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 3555edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 355639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 355739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 35583becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 355939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 356039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 35617cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 35627cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 356339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 356439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 356539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 356639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 356739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 356839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 356939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 357039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 357139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 357239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 35733becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 357439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 357539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 35767cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 35777cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 357839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 357939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 358039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 358139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 358239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 358339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 358439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 3585edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3586acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 35878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 35888137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 3589acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 3590acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 3591acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3592acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 35938137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 3594acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 3595acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 3596acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 3597acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3598acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3599acc398c195a697795bff3245943d104eb19192b9Nate Begeman 36003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 36018137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 36028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 36032d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth Lo = DAG.getLoad(NVT, Ch, Ptr, Node->getOperand(2)); 36043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 36053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Increment the pointer to the other half. 360638d6be5d49e61e4be9bb12ee3cedf2a4fcddb8f3Chris Lattner unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 36073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 36083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner getIntPtrConstant(IncrementSize)); 36098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // FIXME: This creates a bogus srcvalue! 36102d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth Hi = DAG.getLoad(NVT, Ch, Ptr, Node->getOperand(2)); 3611ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner 3612ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner // Build a factor node to remember that this load is independent of the 3613ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner // other one. 3614ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 3615ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner Hi.getValue(1)); 3616edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 36173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remember that we legalized the chain. 36188137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 36193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (!TLI.isLittleEndian()) 36203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::swap(Lo, Hi); 36213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 36223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 36233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 36243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 36253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 36263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 36273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 36283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 36293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 36303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 36313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 36323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 36333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 3634456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 36353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 36363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 3637456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 3638456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 36393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 36403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 36419373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 36429373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 36439373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 36449373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 36459373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 36469373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 36479373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 36489373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TH, FH, Node->getOperand(4)); 36499373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 36509373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 3651144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman case ISD::SEXTLOAD: { 36528137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Chain = Node->getOperand(0); 36538137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); 3654144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman MVT::ValueType EVT = cast<VTSDNode>(Node->getOperand(3))->getVT(); 3655144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman 3656144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman if (EVT == NVT) 3657144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Lo = DAG.getLoad(NVT, Chain, Ptr, Node->getOperand(2)); 3658144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman else 3659144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Lo = DAG.getExtLoad(ISD::SEXTLOAD, NVT, Chain, Ptr, Node->getOperand(2), 3660144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman EVT); 36619ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 36629ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner // Remember that we legalized the chain. 36638137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 36649ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 3665144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman // The high part is obtained by SRA'ing all but one of the bits of the lo 3666144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman // part. 3667144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 3668144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Hi = DAG.getNode(ISD::SRA, NVT, Lo, DAG.getConstant(LoSize-1, 3669144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman TLI.getShiftAmountTy())); 3670144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman break; 3671144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman } 3672144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman case ISD::ZEXTLOAD: { 36738137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Chain = Node->getOperand(0); 36748137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); 3675144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman MVT::ValueType EVT = cast<VTSDNode>(Node->getOperand(3))->getVT(); 3676144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman 3677144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman if (EVT == NVT) 3678144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Lo = DAG.getLoad(NVT, Chain, Ptr, Node->getOperand(2)); 3679144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman else 3680144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman Lo = DAG.getExtLoad(ISD::ZEXTLOAD, NVT, Chain, Ptr, Node->getOperand(2), 3681144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman EVT); 36829ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 36839ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner // Remember that we legalized the chain. 36848137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 36859ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 3686144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman // The high part is just a zero. 36878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getConstant(0, NVT); 36889ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner break; 36899ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner } 36909ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner case ISD::EXTLOAD: { 36918137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Chain = Node->getOperand(0); 36928137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); 36939ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(Node->getOperand(3))->getVT(); 36949ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 36959ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner if (EVT == NVT) 36969ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner Lo = DAG.getLoad(NVT, Chain, Ptr, Node->getOperand(2)); 36979ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner else 36989ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner Lo = DAG.getExtLoad(ISD::EXTLOAD, NVT, Chain, Ptr, Node->getOperand(2), 36999ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner EVT); 37009ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 37019ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner // Remember that we legalized the chain. 37028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 37039ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner 37049ad8481cfbbb9dfe451b771978098677bc8dd254Chris Lattner // The high part is undefined. 37058137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 3706144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman break; 3707144ff660e66845a575586bc4092c0cf349b5bfb9Nate Begeman } 37088137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 370913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 37108137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 371113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 371213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 371313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 37143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 37153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 37163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 37178137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 3718edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 37193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 37203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 37212dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 37228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 37238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 37243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 37253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 37268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 37273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 37283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 37298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 3730edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 37313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 37323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 37333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 373435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 373535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 373635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand Tmp = ExpandBIT_CONVERT(Node->getValueType(0), 373735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0)); 373835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 373935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 374035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 3741f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 37428137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::READCYCLECOUNTER: 3743308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 3744308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 3745308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 37468137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = TLI.LowerOperation(Op, DAG); 37478137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner assert(Lo.Val && "Node must be custom expanded!"); 37488137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Lo.getValue(1); 3749308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 37508137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner LegalizeOp(Lo.getValue(2))); 3751f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 3752f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 37534e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 37544e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 37554e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner case ISD::FP_TO_SINT: 375680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 3757f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 3758f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3759f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 37608137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 37618137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 3762f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 3763d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3764f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 3765f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 376680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 376780a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 376807dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 376907dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 377007dffd6af673c73352150583150b242a93694f00Chris Lattner break; 377107dffd6af673c73352150583150b242a93694f00Chris Lattner } 377280a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 3773d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 37744e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 377577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixsfdi", Node, Hi); 37764e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 377777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixdfdi", Node, Hi); 37784e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 3779d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 37804e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner case ISD::FP_TO_UINT: 378180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 37828137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 37838137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 37848137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 37858137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 37868137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 37878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 37888137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 37898137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 37908137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 37918137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 379207dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 379307dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 379407dffd6af673c73352150583150b242a93694f00Chris Lattner break; 379507dffd6af673c73352150583150b242a93694f00Chris Lattner } 379680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 3797d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 37984e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 379977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixunssfdi", Node, Hi); 38004e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 380177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixunsdfdi", Node, Hi); 38024e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 38034e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 380405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 380550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 3806348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 380750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 38088137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 380950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 381050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 381150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 381250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 381350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 381450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 381550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 381650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 381750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 3818e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 3819348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 3820e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 38214759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 38224759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 382305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 382405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 382505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 382605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 3827348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 38284759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 38294759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 38304759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 3831e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 383277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__ashldi3", Node, Hi); 3833e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 383405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 3835e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 383605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 383750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 3838348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 383950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 38408137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 384150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 384250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 384350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 384450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 384550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 384650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 384750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 384850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 384950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 3850e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 3851348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 3852e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 38534759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 38544759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 385505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 385605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 385705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 385805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 3859348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 38604759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 38614759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 38624759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 3863e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 386477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__ashrdi3", Node, Hi); 3865e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 386605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 386705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 386805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 386950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 3870348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 387150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 38728137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 387350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 387450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 387550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 387650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 387750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 387850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 387950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 388050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 388150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 3882e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 3883348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 3884e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 38854759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 38864759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 388705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 388805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 388905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 389005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 3891348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 38924759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 38934759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 38944759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 3895e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 389677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__lshrdi3", Node, Hi); 3897e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 389805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 3899e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 3900edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 39018137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 39028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 39038137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 39048137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 39058137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 39068137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 39078137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 39088137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 39098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 39108137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 39118137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 39128137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 39138137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 39148137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 39158137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 3916551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman std::vector<MVT::ValueType> VTs; 3917551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman std::vector<SDOperand> LoOps, HiOps; 3918551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman VTs.push_back(LHSL.getValueType()); 3919551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman VTs.push_back(MVT::Flag); 3920551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman LoOps.push_back(LHSL); 3921551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman LoOps.push_back(RHSL); 3922551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman HiOps.push_back(LHSH); 3923551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman HiOps.push_back(RHSH); 3924551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 3925551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Lo = DAG.getNode(ISD::ADDC, VTs, LoOps); 3926551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman HiOps.push_back(Lo.getValue(1)); 3927551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Hi = DAG.getNode(ISD::ADDE, VTs, HiOps); 3928551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 3929551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Lo = DAG.getNode(ISD::SUBC, VTs, LoOps); 3930551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman HiOps.push_back(Lo.getValue(1)); 3931551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Hi = DAG.getNode(ISD::SUBE, VTs, HiOps); 3932551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 393384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 39348137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 3935c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 3936c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner if (TLI.isOperationLegal(ISD::MULHU, NVT)) { 3937c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 3938c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 3939c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 394056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman unsigned SH = MVT::getSizeInBits(RH.getValueType())-1; 394156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // MULHS implicitly sign extends its inputs. Check to see if ExpandOp 394256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // extended the sign bit of the low half through the upper half, and if so 394356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // emit a MULHS instead of the alternate sequence that is valid for any 394456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // i64 x i64 multiply. 394556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman if (TLI.isOperationLegal(ISD::MULHS, NVT) && 394656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is RH an extension of the sign bit of RL? 394756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOpcode() == ISD::SRA && RH.getOperand(0) == RL && 394856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOperand(1).getOpcode() == ISD::Constant && 394956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(RH.getOperand(1))->getValue() == SH && 395056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is LH an extension of the sign bit of LL? 395156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOpcode() == ISD::SRA && LH.getOperand(0) == LL && 395256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOperand(1).getOpcode() == ISD::Constant && 395356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(LH.getOperand(1))->getValue() == SH) { 395456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 395556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } else { 395656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 395756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 395856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 395956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 396056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 396156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 3962c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 3963c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } else { 39649c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Lo = ExpandLibCall("__muldi3" , Node, Hi); 3965c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 3966c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 3967c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 396877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::SDIV: Lo = ExpandLibCall("__divdi3" , Node, Hi); break; 396977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::UDIV: Lo = ExpandLibCall("__udivdi3", Node, Hi); break; 397077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::SREM: Lo = ExpandLibCall("__moddi3" , Node, Hi); break; 397177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::UREM: Lo = ExpandLibCall("__umoddi3", Node, Hi); break; 39723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 39733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 397483397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 397583397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 397683397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 397783397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 397883397363348662e9352455ea1e6e88e7026300a4Chris Lattner Hi = LegalizeOp(Hi); 397983397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 398005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 398105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 398205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng bool isNew = 398305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 398405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 39853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 39863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3987c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// SplitVectorOp - Given an operand of MVT::Vector type, break it down into 3988c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// two smaller values of MVT::Vector type. 3989c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 3990c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 3991c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Cannot split non-vector type!"); 3992c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 3993c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = cast<ConstantSDNode>(*(Node->op_end()-2))->getValue(); 3994c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 3995c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NewNumElts = NumElements/2; 3996c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand NewNumEltsNode = DAG.getConstant(NewNumElts, MVT::i32); 3997c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TypeNode = *(Node->op_end()-1); 3998c7029805ef35ce9805931067b841e6af11db382eChris Lattner 3999c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 4000c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 4001c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 4002c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 4003c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 4004c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 4005c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 4006c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4007c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4008c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 4009c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VConstant: { 4010c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::vector<SDOperand> LoOps(Node->op_begin(), Node->op_begin()+NewNumElts); 4011c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(NewNumEltsNode); 4012c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(TypeNode); 4013c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getNode(ISD::VConstant, MVT::Vector, LoOps); 4014c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4015c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::vector<SDOperand> HiOps(Node->op_begin()+NewNumElts, Node->op_end()-2); 4016c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(NewNumEltsNode); 4017c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(TypeNode); 4018c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getNode(ISD::VConstant, MVT::Vector, HiOps); 4019c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4020c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4021c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 4022c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 4023c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 4024c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 4025c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 4026c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 4027c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 4028c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: { 4029c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 4030c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 4031c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 4032c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4033c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getNode(Node->getOpcode(), MVT::Vector, LL, RL, 4034c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 4035c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getNode(Node->getOpcode(), MVT::Vector, LH, RH, 4036c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 4037c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4038c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4039c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 4040c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 4041c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 4042c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(TypeNode)->getVT(); 4043c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4044c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 4045c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned IncrementSize = NewNumElts * MVT::getSizeInBits(EVT)/8; 4046c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 4047c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 4048c7029805ef35ce9805931067b841e6af11db382eChris Lattner // FIXME: This creates a bogus srcvalue! 4049c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 4050c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4051c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 4052c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 4053c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 4054c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 4055c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4056c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 4057c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 4058c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (!TLI.isLittleEndian()) 4059c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::swap(Lo, Hi); 4060c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4061c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4062c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4063c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4064c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 4065c7029805ef35ce9805931067b841e6af11db382eChris Lattner bool isNew = 4066c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 4067c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already expanded?!?"); 4068c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4069c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4070c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4071c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// PackVectorOp - Given an operand of MVT::Vector type, convert it into the 4072c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// equivalent operation that returns a scalar (e.g. F32) or packed value 4073c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// (e.g. MVT::V4F32). When this is called, we know that PackedVT is the right 4074c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// type for the result. 4075c7029805ef35ce9805931067b841e6af11db382eChris LattnerSDOperand SelectionDAGLegalize::PackVectorOp(SDOperand Op, 4076c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType NewVT) { 4077c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Bad PackVectorOp invocation!"); 4078c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 4079c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4080c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already packed it. 4081c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, SDOperand>::iterator I = PackedNodes.find(Op); 4082c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != PackedNodes.end()) return I->second; 4083c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4084c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 4085c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 4086c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Unknown vector operation!"); 4087c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 4088c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 4089c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 4090c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 4091c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 4092c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 4093c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 4094c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: 4095c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.getNode(getScalarizedOpcode(Node->getOpcode(), NewVT), 4096c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 4097c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(0), NewVT), 4098c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(1), NewVT)); 4099c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4100c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 4101c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ch = LegalizeOp(Node->getOperand(2)); // Legalize the chain. 4102c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ptr = LegalizeOp(Node->getOperand(3)); // Legalize the pointer. 4103c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4104c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.getLoad(NewVT, Ch, Ptr, Node->getOperand(4)); 4105c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4106c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 4107c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4108c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4109c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4110c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VConstant: 4111c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (!MVT::isVector(NewVT)) { 4112c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = Node->getOperand(0); 4113c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4114c7029805ef35ce9805931067b841e6af11db382eChris Lattner // If type of bisected vector is legal, turn it into a ConstantVec (which 4115c7029805ef35ce9805931067b841e6af11db382eChris Lattner // will be lowered to a ConstantPool or something else). Otherwise, bisect 4116c7029805ef35ce9805931067b841e6af11db382eChris Lattner // the VConstant, and return each half as a new VConstant. 4117c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::vector<SDOperand> Ops(Node->op_begin(), Node->op_end()-2); 4118c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.getNode(ISD::ConstantVec, NewVT, Ops); 4119c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4120c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4121c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4122c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4123c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 4124c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 4125c7029805ef35ce9805931067b841e6af11db382eChris Lattner bool isNew = PackedNodes.insert(std::make_pair(Op, Result)).second; 4126c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already packed?"); 4127c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 4128c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4129c7029805ef35ce9805931067b841e6af11db382eChris Lattner 41303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 41313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 41323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 41339c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 41343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 41353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 4136456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 41373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 41383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 4139