1b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===-- HexagonISelLowering.cpp - Hexagon DAG Lowering Implementation -----===// 2b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// 3b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// The LLVM Compiler Infrastructure 4b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// 5b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// This file is distributed under the University of Illinois Open Source 6b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// License. See LICENSE.TXT for details. 7b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// 8b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 9b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// 10b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// This file implements the interfaces that Hexagon uses to lower LLVM code 11b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// into a selection DAG. 12b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// 13b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 14b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 15b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "HexagonISelLowering.h" 16b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "HexagonTargetMachine.h" 17b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "HexagonMachineFunctionInfo.h" 18b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "HexagonTargetObjectFile.h" 19b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "HexagonSubtarget.h" 20b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/DerivedTypes.h" 21b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/Function.h" 22b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/InlineAsm.h" 23b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/GlobalVariable.h" 24b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/GlobalAlias.h" 25b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/Intrinsics.h" 26b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CallingConv.h" 27b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/CallingConvLower.h" 28b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/MachineFrameInfo.h" 29b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/MachineFunction.h" 30b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/MachineInstrBuilder.h" 3179aa3417eb6f58d668aadfedf075240a41d35a26Craig Topper#include "llvm/CodeGen/MachineJumpTableInfo.h" 32b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/MachineRegisterInfo.h" 33b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/SelectionDAGISel.h" 34b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/ValueTypes.h" 35d2f16a292baed68a42f3db8e3c9d84030e3f4d09NAKAMURA Takumi#include "llvm/Support/CommandLine.h" 36b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/Support/Debug.h" 37b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/Support/ErrorHandling.h" 388959393533bfbdcbbfe3c5f336729394896100ceNAKAMURA Takumi#include "llvm/Support/raw_ostream.h" 39d2f16a292baed68a42f3db8e3c9d84030e3f4d09NAKAMURA Takumi 4079aa3417eb6f58d668aadfedf075240a41d35a26Craig Topperusing namespace llvm; 41b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 42b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumconst unsigned Hexagon_MAX_RET_SIZE = 64; 43b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 44b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic cl::opt<bool> 45b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumEmitJumpTables("hexagon-emit-jump-tables", cl::init(true), cl::Hidden, 46b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum cl::desc("Control jump table emission on Hexagon target")); 47b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 48b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumint NumNamedVarArgParams = -1; 49b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 50b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// Implement calling convention for Hexagon. 51b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool 52b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumCC_Hexagon(unsigned ValNo, MVT ValVT, 53b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 54b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State); 55b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 56b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool 57b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumCC_Hexagon32(unsigned ValNo, MVT ValVT, 58b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 59b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State); 60b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 61b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool 62b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumCC_Hexagon64(unsigned ValNo, MVT ValVT, 63b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 64b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State); 65b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 66b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool 67b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumRetCC_Hexagon(unsigned ValNo, MVT ValVT, 68b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 69b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State); 70b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 71b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool 72b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumRetCC_Hexagon32(unsigned ValNo, MVT ValVT, 73b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 74b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State); 75b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 76b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool 77b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumRetCC_Hexagon64(unsigned ValNo, MVT ValVT, 78b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 79b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State); 80b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 81b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool 82b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumCC_Hexagon_VarArg (unsigned ValNo, MVT ValVT, 83b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 84b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 85b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 86b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // NumNamedVarArgParams can not be zero for a VarArg function. 87b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum assert ( (NumNamedVarArgParams > 0) && 88b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum "NumNamedVarArgParams is not bigger than zero."); 89b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 90b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if ( (int)ValNo < NumNamedVarArgParams ) { 91b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Deal with named arguments. 92b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return CC_Hexagon(ValNo, ValVT, LocVT, LocInfo, ArgFlags, State); 93b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 94b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 95b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Deal with un-named arguments. 96b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned ofst; 97b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (ArgFlags.isByVal()) { 98b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // If pass-by-value, the size allocated on stack is decided 99b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // by ArgFlags.getByValSize(), not by the size of LocVT. 100b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum assert ((ArgFlags.getByValSize() > 8) && 101b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum "ByValSize must be bigger than 8 bytes"); 102b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ofst = State.AllocateStack(ArgFlags.getByValSize(), 4); 103b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, ofst, LocVT, LocInfo)); 104b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 105b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1067517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i32 || LocVT == MVT::f32) { 107b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ofst = State.AllocateStack(4, 4); 108b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, ofst, LocVT, LocInfo)); 109b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 110b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1117517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i64 || LocVT == MVT::f64) { 112b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ofst = State.AllocateStack(8, 8); 113b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, ofst, LocVT, LocInfo)); 114b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 115b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 116b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum llvm_unreachable(0); 117b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 118b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 119b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 120b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool 121b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumCC_Hexagon (unsigned ValNo, MVT ValVT, 122b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 123b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 124b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 125b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (ArgFlags.isByVal()) { 126b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Passed on stack. 127b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum assert ((ArgFlags.getByValSize() > 8) && 128b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum "ByValSize must be bigger than 8 bytes"); 129b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Offset = State.AllocateStack(ArgFlags.getByValSize(), 4); 130b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo)); 131b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 132b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 133b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 134b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (LocVT == MVT::i1 || LocVT == MVT::i8 || LocVT == MVT::i16) { 135b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocVT = MVT::i32; 136b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ValVT = MVT::i32; 137b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (ArgFlags.isSExt()) 138b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocInfo = CCValAssign::SExt; 139b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum else if (ArgFlags.isZExt()) 140b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocInfo = CCValAssign::ZExt; 141b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum else 142b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocInfo = CCValAssign::AExt; 143b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 144b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1457517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i32 || LocVT == MVT::f32) { 146b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!CC_Hexagon32(ValNo, ValVT, LocVT, LocInfo, ArgFlags, State)) 147b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 148b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 149b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1507517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i64 || LocVT == MVT::f64) { 151b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!CC_Hexagon64(ValNo, ValVT, LocVT, LocInfo, ArgFlags, State)) 152b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 153b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 154b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 155b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return true; // CC didn't match. 156b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 157b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 158b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 159b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool CC_Hexagon32(unsigned ValNo, MVT ValVT, 160b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 161b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 162b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 163c5eaae4e9bc75b203b3a9922b480729bc4f340e2Craig Topper static const uint16_t RegList[] = { 164b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Hexagon::R0, Hexagon::R1, Hexagon::R2, Hexagon::R3, Hexagon::R4, 165b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Hexagon::R5 166b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum }; 167b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (unsigned Reg = State.AllocateReg(RegList, 6)) { 168b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getReg(ValNo, ValVT, Reg, LocVT, LocInfo)); 169b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 170b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 171b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 172b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Offset = State.AllocateStack(4, 4); 173b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo)); 174b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 175b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 176b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 177b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool CC_Hexagon64(unsigned ValNo, MVT ValVT, 178b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 179b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 180b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 181b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (unsigned Reg = State.AllocateReg(Hexagon::D0)) { 182b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getReg(ValNo, ValVT, Reg, LocVT, LocInfo)); 183b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 184b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 185b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 186c5eaae4e9bc75b203b3a9922b480729bc4f340e2Craig Topper static const uint16_t RegList1[] = { 187b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Hexagon::D1, Hexagon::D2 188b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum }; 189c5eaae4e9bc75b203b3a9922b480729bc4f340e2Craig Topper static const uint16_t RegList2[] = { 190b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Hexagon::R1, Hexagon::R3 191b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum }; 192b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (unsigned Reg = State.AllocateReg(RegList1, RegList2, 2)) { 193b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getReg(ValNo, ValVT, Reg, LocVT, LocInfo)); 194b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 195b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 196b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 197b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Offset = State.AllocateStack(8, 8, Hexagon::D2); 198b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo)); 199b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 200b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 201b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 202b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool RetCC_Hexagon(unsigned ValNo, MVT ValVT, 203b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 204b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 205b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 206b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 207b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (LocVT == MVT::i1 || 208b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocVT == MVT::i8 || 209b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocVT == MVT::i16) { 210b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocVT = MVT::i32; 211b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ValVT = MVT::i32; 212b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (ArgFlags.isSExt()) 213b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocInfo = CCValAssign::SExt; 214b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum else if (ArgFlags.isZExt()) 215b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocInfo = CCValAssign::ZExt; 216b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum else 217b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocInfo = CCValAssign::AExt; 218b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 219b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 2207517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i32 || LocVT == MVT::f32) { 221b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!RetCC_Hexagon32(ValNo, ValVT, LocVT, LocInfo, ArgFlags, State)) 222b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 223b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 224b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 2257517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i64 || LocVT == MVT::f64) { 226b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!RetCC_Hexagon64(ValNo, ValVT, LocVT, LocInfo, ArgFlags, State)) 227b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 228b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 229b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 230b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return true; // CC didn't match. 231b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 232b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 233b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool RetCC_Hexagon32(unsigned ValNo, MVT ValVT, 234b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 235b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 236b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 2377517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i32 || LocVT == MVT::f32) { 238b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (unsigned Reg = State.AllocateReg(Hexagon::R0)) { 239b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getReg(ValNo, ValVT, Reg, LocVT, LocInfo)); 240b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 241b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 242b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 243b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 244b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Offset = State.AllocateStack(4, 4); 245b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo)); 246b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 247b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 248b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 249b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool RetCC_Hexagon64(unsigned ValNo, MVT ValVT, 250b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 251b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 2527517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i64 || LocVT == MVT::f64) { 253b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (unsigned Reg = State.AllocateReg(Hexagon::D0)) { 254b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getReg(ValNo, ValVT, Reg, LocVT, LocInfo)); 255b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 256b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 257b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 258b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 259b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Offset = State.AllocateStack(8, 8); 260b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo)); 261b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 262b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 263b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 264b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 265b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) 266b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumconst { 267b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return SDValue(); 268b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 269b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 270b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// CreateCopyOfByValArgument - Make a copy of an aggregate at address specified 271b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// by "Src" to address "Dst" of size "Size". Alignment information is 272b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// specified by the specific parameter attribute. The copy will be passed as 273b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// a byval function parameter. Sometimes what we are copying is the end of a 274b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// larger object, the part that does not fit in registers. 275b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic SDValue 276b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumCreateCopyOfByValArgument(SDValue Src, SDValue Dst, SDValue Chain, 277b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy Flags, SelectionDAG &DAG, 278b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DebugLoc dl) { 279b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 280b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue SizeNode = DAG.getConstant(Flags.getByValSize(), MVT::i32); 281b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getMemcpy(Chain, dl, Dst, Src, SizeNode, Flags.getByValAlign(), 282b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum /*isVolatile=*/false, /*AlwaysInline=*/false, 283b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachinePointerInfo(), MachinePointerInfo()); 284b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 285b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 286b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 287b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// LowerReturn - Lower ISD::RET. If a struct is larger than 8 bytes and is 288b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// passed by value, the function prototype is modified to return void and 289b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// the value is stored in memory pointed by a pointer passed by caller. 290b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 291b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerReturn(SDValue Chain, 292b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CallingConv::ID CallConv, bool isVarArg, 293b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const SmallVectorImpl<ISD::OutputArg> &Outs, 294b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const SmallVectorImpl<SDValue> &OutVals, 295b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DebugLoc dl, SelectionDAG &DAG) const { 296b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 297b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // CCValAssign - represent the assignment of the return value to locations. 298b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<CCValAssign, 16> RVLocs; 299b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 300b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // CCState - Info about the registers and stack slot. 301b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), 30256cb2298663017eb77aa4f4dda8db7ecd1b58173Bill Wendling getTargetMachine(), RVLocs, *DAG.getContext()); 303b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 304b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Analyze return values of ISD::RET 305b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCInfo.AnalyzeReturn(Outs, RetCC_Hexagon); 306b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 307b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // If this is the first return lowered for this function, add the regs to the 308b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // liveout set for the function. 309b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (DAG.getMachineFunction().getRegInfo().liveout_empty()) { 310b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0; i != RVLocs.size(); ++i) 311b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (RVLocs[i].isRegLoc()) 312b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getMachineFunction().getRegInfo().addLiveOut(RVLocs[i].getLocReg()); 313b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 314b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 315b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Flag; 316b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Copy the result values into the output registers. 317b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0; i != RVLocs.size(); ++i) { 318b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCValAssign &VA = RVLocs[i]; 319b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 320b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getCopyToReg(Chain, dl, VA.getLocReg(), OutVals[i], Flag); 321b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 322b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Guarantee that all emitted copies are stuck together with flags. 323b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Flag = Chain.getValue(1); 324b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 325b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 326b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Flag.getNode()) 327b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::RET_FLAG, dl, MVT::Other, Chain, Flag); 328b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 329b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::RET_FLAG, dl, MVT::Other, Chain); 330b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 331b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 332b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 333b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 334b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 335b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// LowerCallResult - Lower the result values of an ISD::CALL into the 336b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// appropriate copies out of appropriate physical registers. This assumes that 337b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// Chain/InFlag are the input chain/flag to use, and that TheCall is the call 338b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// being lowered. Returns a SDNode with the same number of values as the 339b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// ISD::CALL. 340b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 341b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerCallResult(SDValue Chain, SDValue InFlag, 342b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CallingConv::ID CallConv, bool isVarArg, 343b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const 344b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVectorImpl<ISD::InputArg> &Ins, 345b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DebugLoc dl, SelectionDAG &DAG, 346b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVectorImpl<SDValue> &InVals, 347b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const SmallVectorImpl<SDValue> &OutVals, 348b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Callee) const { 349b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 350b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Assign locations to each value returned by this call. 351b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<CCValAssign, 16> RVLocs; 352b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 353b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), 35456cb2298663017eb77aa4f4dda8db7ecd1b58173Bill Wendling getTargetMachine(), RVLocs, *DAG.getContext()); 355b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 356b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCInfo.AnalyzeCallResult(Ins, RetCC_Hexagon); 357b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 358b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Copy all of the result registers out of their specified physreg. 359b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0; i != RVLocs.size(); ++i) { 360b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getCopyFromReg(Chain, dl, 361b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RVLocs[i].getLocReg(), 362b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RVLocs[i].getValVT(), InFlag).getValue(1); 363b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag = Chain.getValue(2); 364b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InVals.push_back(Chain.getValue(0)); 365b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 366b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 367b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return Chain; 368b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 369b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 370b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// LowerCall - Functions arguments are copied from virtual regs to 371b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// (physical regs)/(stack frame), CALLSEQ_START and CALLSEQ_END are emitted. 372b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 373d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin HolewinskiHexagonTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, 374b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVectorImpl<SDValue> &InVals) const { 375d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski SelectionDAG &DAG = CLI.DAG; 376d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski DebugLoc &dl = CLI.DL; 377d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski SmallVector<ISD::OutputArg, 32> &Outs = CLI.Outs; 378d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski SmallVector<SDValue, 32> &OutVals = CLI.OutVals; 379d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski SmallVector<ISD::InputArg, 32> &Ins = CLI.Ins; 380d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski SDValue Chain = CLI.Chain; 381d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski SDValue Callee = CLI.Callee; 382d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski bool &isTailCall = CLI.IsTailCall; 383d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski CallingConv::ID CallConv = CLI.CallConv; 384d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski bool isVarArg = CLI.IsVarArg; 385b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 386b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool IsStructRet = (Outs.empty()) ? false : Outs[0].Flags.isSRet(); 387b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 388b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Analyze operands of the call, assigning locations to each operand. 389b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<CCValAssign, 16> ArgLocs; 390b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), 39156cb2298663017eb77aa4f4dda8db7ecd1b58173Bill Wendling getTargetMachine(), ArgLocs, *DAG.getContext()); 392b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 393b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Check for varargs. 394b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum NumNamedVarArgParams = -1; 395b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (GlobalAddressSDNode *GA = dyn_cast<GlobalAddressSDNode>(Callee)) 396b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum { 397b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const Function* CalleeFn = NULL; 398b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Callee = DAG.getTargetGlobalAddress(GA->getGlobal(), dl, MVT::i32); 399b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if ((CalleeFn = dyn_cast<Function>(GA->getGlobal()))) 400b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum { 401b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // If a function has zero args and is a vararg function, that's 402b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // disallowed so it must be an undeclared function. Do not assume 403b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // varargs if the callee is undefined. 404b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (CalleeFn->isVarArg() && 405b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CalleeFn->getFunctionType()->getNumParams() != 0) { 406b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum NumNamedVarArgParams = CalleeFn->getFunctionType()->getNumParams(); 407b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 408b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 409b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 410b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 411b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (NumNamedVarArgParams > 0) 412b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCInfo.AnalyzeCallOperands(Outs, CC_Hexagon_VarArg); 413b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum else 414b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCInfo.AnalyzeCallOperands(Outs, CC_Hexagon); 415b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 416b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 417b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if(isTailCall) { 418b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool StructAttrFlag = 419b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getMachineFunction().getFunction()->hasStructRetAttr(); 420b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum isTailCall = IsEligibleForTailCallOptimization(Callee, CallConv, 421b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum isVarArg, IsStructRet, 422b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum StructAttrFlag, 423b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Outs, OutVals, Ins, DAG); 424b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i){ 425b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCValAssign &VA = ArgLocs[i]; 426b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (VA.isMemLoc()) { 427b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum isTailCall = false; 428b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 429b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 430b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 431b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isTailCall) { 432b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DEBUG(dbgs () << "Eligible for Tail Call\n"); 433b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 434b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DEBUG(dbgs () << 435b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum "Argument must be passed on stack. Not eligible for Tail Call\n"); 436b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 437b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 438b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Get a count of how many bytes are to be pushed on the stack. 439b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned NumBytes = CCInfo.getNextStackOffset(); 440b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<std::pair<unsigned, SDValue>, 16> RegsToPass; 441b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<SDValue, 8> MemOpChains; 442b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 443b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue StackPtr = 444b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getCopyFromReg(Chain, dl, TM.getRegisterInfo()->getStackRegister(), 445b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum getPointerTy()); 446b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 447b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Walk the register/memloc assignments, inserting copies/loads. 448b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) { 449b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCValAssign &VA = ArgLocs[i]; 450b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Arg = OutVals[i]; 451b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy Flags = Outs[i].Flags; 452b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 453b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Promote the value if needed. 454b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (VA.getLocInfo()) { 455b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum default: 456b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Loc info must be one of Full, SExt, ZExt, or AExt. 457bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("Unknown loc info!"); 458b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case CCValAssign::Full: 459b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 460b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case CCValAssign::SExt: 461b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Arg = DAG.getNode(ISD::SIGN_EXTEND, dl, VA.getLocVT(), Arg); 462b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 463b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case CCValAssign::ZExt: 464b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Arg = DAG.getNode(ISD::ZERO_EXTEND, dl, VA.getLocVT(), Arg); 465b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 466b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case CCValAssign::AExt: 467b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Arg = DAG.getNode(ISD::ANY_EXTEND, dl, VA.getLocVT(), Arg); 468b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 469b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 470b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 471b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (VA.isMemLoc()) { 472b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned LocMemOffset = VA.getLocMemOffset(); 473b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue PtrOff = DAG.getConstant(LocMemOffset, StackPtr.getValueType()); 474b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff); 475b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 476b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Flags.isByVal()) { 477b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // The argument is a struct passed by value. According to LLVM, "Arg" 478b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // is is pointer. 479b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MemOpChains.push_back(CreateCopyOfByValArgument(Arg, PtrOff, Chain, 480b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Flags, DAG, dl)); 481b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 482b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // The argument is not passed by value. "Arg" is a buildin type. It is 483b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // not a pointer. 484b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MemOpChains.push_back(DAG.getStore(Chain, dl, Arg, PtrOff, 485b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachinePointerInfo(),false, false, 486b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 0)); 487b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 488b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum continue; 489b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 490b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 491b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Arguments that can be passed on register must be kept at RegsToPass 492b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // vector. 493b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (VA.isRegLoc()) { 494b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg)); 495b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 496b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 497b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 498b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Transform all store nodes into one single node because all store 499b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // nodes are independent of each other. 500b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!MemOpChains.empty()) { 501b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, &MemOpChains[0], 502b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MemOpChains.size()); 503b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 504b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 505b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!isTailCall) 506b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getCALLSEQ_START(Chain, DAG.getConstant(NumBytes, 507b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum getPointerTy(), true)); 508b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 509b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Build a sequence of copy-to-reg nodes chained together with token 510b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // chain and flag operands which copy the outgoing args into registers. 511d9b0b025612992a0b724eeca8bdf10b1d7a5c355Benjamin Kramer // The InFlag in necessary since all emitted instructions must be 512b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // stuck together. 513b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue InFlag; 514b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!isTailCall) { 515b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) { 516b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getCopyToReg(Chain, dl, RegsToPass[i].first, 517b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RegsToPass[i].second, InFlag); 518b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag = Chain.getValue(1); 519b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 520b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 521b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 522b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // For tail calls lower the arguments to the 'real' stack slot. 523b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isTailCall) { 524b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Force all the incoming stack arguments to be loaded from the stack 525b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // before any new outgoing arguments are stored to the stack, because the 526b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // outgoing stack slots may alias the incoming argument stack slots, and 527b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // the alias isn't otherwise explicit. This is slightly more conservative 528b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // than necessary, because it means that each store effectively depends 529b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // on every argument instead of just those arguments it would clobber. 530b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 531d9b0b025612992a0b724eeca8bdf10b1d7a5c355Benjamin Kramer // Do not flag preceding copytoreg stuff together with the following stuff. 532b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag = SDValue(); 533b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) { 534b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getCopyToReg(Chain, dl, RegsToPass[i].first, 535b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RegsToPass[i].second, InFlag); 536b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag = Chain.getValue(1); 537b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 538b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag =SDValue(); 539b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 540b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 541b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // If the callee is a GlobalAddress/ExternalSymbol node (quite common, every 542b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // direct call is) turn it into a TargetGlobalAddress/TargetExternalSymbol 543b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // node so that legalize doesn't hack it. 544b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (flag_aligned_memcpy) { 545b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const char *MemcpyName = 546b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum "__hexagon_memcpy_likely_aligned_min32bytes_mult8bytes"; 547b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Callee = 548b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getTargetExternalSymbol(MemcpyName, getPointerTy()); 549b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum flag_aligned_memcpy = false; 550b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee)) { 551b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Callee = DAG.getTargetGlobalAddress(G->getGlobal(), dl, getPointerTy()); 552b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else if (ExternalSymbolSDNode *S = 553b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum dyn_cast<ExternalSymbolSDNode>(Callee)) { 554b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Callee = DAG.getTargetExternalSymbol(S->getSymbol(), getPointerTy()); 555b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 556b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 557b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Returns a chain & a flag for retval copy to use. 558b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDVTList NodeTys = DAG.getVTList(MVT::Other, MVT::Glue); 559b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<SDValue, 8> Ops; 560b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Ops.push_back(Chain); 561b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Ops.push_back(Callee); 562b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 563b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Add argument registers to the end of the list so that they are 564b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // known live into the call. 565b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) { 566b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Ops.push_back(DAG.getRegister(RegsToPass[i].first, 567b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RegsToPass[i].second.getValueType())); 568b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 569b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 570b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (InFlag.getNode()) { 571b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Ops.push_back(InFlag); 572b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 573b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 574b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isTailCall) 575b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::TC_RETURN, dl, NodeTys, &Ops[0], Ops.size()); 576b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 577b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getNode(HexagonISD::CALL, dl, NodeTys, &Ops[0], Ops.size()); 578b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag = Chain.getValue(1); 579b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 580b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Create the CALLSEQ_END node. 581b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(NumBytes, true), 582b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getIntPtrConstant(0, true), InFlag); 583b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag = Chain.getValue(1); 584b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 585b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Handle result values, copying them out of physregs into vregs that we 586b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // return. 587b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return LowerCallResult(Chain, InFlag, CallConv, isVarArg, Ins, dl, DAG, 588b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InVals, OutVals, Callee); 589b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 590b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 591b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool getIndexedAddressParts(SDNode *Ptr, EVT VT, 592b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isSEXTLoad, SDValue &Base, 593b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue &Offset, bool &isInc, 594b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG &DAG) { 595b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Ptr->getOpcode() != ISD::ADD) 596b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 597b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 598b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (VT == MVT::i64 || VT == MVT::i32 || VT == MVT::i16 || VT == MVT::i8) { 599b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum isInc = (Ptr->getOpcode() == ISD::ADD); 600b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Base = Ptr->getOperand(0); 601b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Offset = Ptr->getOperand(1); 602b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Ensure that Offset is a constant. 603b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return (isa<ConstantSDNode>(Offset)); 604b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 605b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 606b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 607b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 608b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 609b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// TODO: Put this function along with the other isS* functions in 610b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// HexagonISelDAGToDAG.cpp into a common file. Or better still, use the 611b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// functions defined in HexagonImmediates.td. 612b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool Is_PostInc_S4_Offset(SDNode * S, int ShiftAmount) { 613b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ConstantSDNode *N = cast<ConstantSDNode>(S); 614b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 615b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // immS4 predicate - True if the immediate fits in a 4-bit sign extended. 616b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // field. 617b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int64_t v = (int64_t)N->getSExtValue(); 618b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int64_t m = 0; 619b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (ShiftAmount > 0) { 620b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum m = v % ShiftAmount; 621b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum v = v >> ShiftAmount; 622b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 623b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return (v <= 7) && (v >= -8) && (m == 0); 624b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 625b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 626b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// getPostIndexedAddressParts - returns true by value, base pointer and 627b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// offset pointer and addressing mode by reference if this node can be 628b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// combined with a load / store to form a post-indexed load / store. 629b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumbool HexagonTargetLowering::getPostIndexedAddressParts(SDNode *N, SDNode *Op, 630b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue &Base, 631b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue &Offset, 632b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::MemIndexedMode &AM, 633b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG &DAG) const 634b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum{ 635b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT VT; 636b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Ptr; 637b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isSEXTLoad = false; 638b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 639b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N)) { 640b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum VT = LD->getMemoryVT(); 641b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum isSEXTLoad = LD->getExtensionType() == ISD::SEXTLOAD; 642b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) { 643b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum VT = ST->getMemoryVT(); 644b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (ST->getValue().getValueType() == MVT::i64 && ST->isTruncatingStore()) { 645b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 646b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 647b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 648b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 649b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 650b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 6516da0ef9ca408ac39ba3af76f5571756792511134Chad Rosier bool isInc = false; 652b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isLegal = getIndexedAddressParts(Op, VT, isSEXTLoad, Base, Offset, 653b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum isInc, DAG); 654b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // ShiftAmount = number of left-shifted bits in the Hexagon instruction. 655b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int ShiftAmount = VT.getSizeInBits() / 16; 656b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isLegal && Is_PostInc_S4_Offset(Offset.getNode(), ShiftAmount)) { 657b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum AM = isInc ? ISD::POST_INC : ISD::POST_DEC; 658b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return true; 659b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 660b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 661b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 662b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 663b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 664b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue HexagonTargetLowering::LowerINLINEASM(SDValue Op, 665b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG &DAG) const { 666b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDNode *Node = Op.getNode(); 667b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFunction &MF = DAG.getMachineFunction(); 668b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum HexagonMachineFunctionInfo *FuncInfo = 669b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MF.getInfo<HexagonMachineFunctionInfo>(); 670b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (Node->getOpcode()) { 671b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::INLINEASM: { 672b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned NumOps = Node->getNumOperands(); 673b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Node->getOperand(NumOps-1).getValueType() == MVT::Glue) 674b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum --NumOps; // Ignore the flag operand. 675b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 676b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = InlineAsm::Op_FirstOperand; i != NumOps;) { 677b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (FuncInfo->hasClobberLR()) 678b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 679b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Flags = 680b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum cast<ConstantSDNode>(Node->getOperand(i))->getZExtValue(); 681b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned NumVals = InlineAsm::getNumOperandRegisters(Flags); 682b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ++i; // Skip the ID value. 683b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 684b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (InlineAsm::getKind(Flags)) { 685b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum default: llvm_unreachable("Bad flags!"); 686b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case InlineAsm::Kind_RegDef: 687b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case InlineAsm::Kind_RegUse: 688b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case InlineAsm::Kind_Imm: 689b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case InlineAsm::Kind_Clobber: 690b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case InlineAsm::Kind_Mem: { 691b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (; NumVals; --NumVals, ++i) {} 692b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 693b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 694b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case InlineAsm::Kind_RegDefEarlyClobber: { 695b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (; NumVals; --NumVals, ++i) { 696b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Reg = 697b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum cast<RegisterSDNode>(Node->getOperand(i))->getReg(); 698b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 699b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Check it to be lr 700b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Reg == TM.getRegisterInfo()->getRARegister()) { 701b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum FuncInfo->setHasClobberLR(true); 702b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 703b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 704b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 705b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 706b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 707b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 708b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 709b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 710b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } // Node->getOpcode 711b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return Op; 712b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 713b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 714b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 715b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// 716b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// Taken from the XCore backend. 717b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// 718b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue HexagonTargetLowering:: 719b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumLowerBR_JT(SDValue Op, SelectionDAG &DAG) const 720b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum{ 721b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Chain = Op.getOperand(0); 722b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Table = Op.getOperand(1); 723b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Index = Op.getOperand(2); 724b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DebugLoc dl = Op.getDebugLoc(); 725b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum JumpTableSDNode *JT = cast<JumpTableSDNode>(Table); 726b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned JTI = JT->getIndex(); 727b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFunction &MF = DAG.getMachineFunction(); 728b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const MachineJumpTableInfo *MJTI = MF.getJumpTableInfo(); 729b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue TargetJT = DAG.getTargetJumpTable(JT->getIndex(), MVT::i32); 730b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 731b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Mark all jump table targets as address taken. 732b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const std::vector<MachineJumpTableEntry> &JTE = MJTI->getJumpTables(); 733b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const std::vector<MachineBasicBlock*> &JTBBs = JTE[JTI].MBBs; 734b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = JTBBs.size(); i != e; ++i) { 735b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineBasicBlock *MBB = JTBBs[i]; 736b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MBB->setHasAddressTaken(); 737b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // This line is needed to set the hasAddressTaken flag on the BasicBlock 738b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // object. 739b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum BlockAddress::get(const_cast<BasicBlock *>(MBB->getBasicBlock())); 740b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 741b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 742b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue JumpTableBase = DAG.getNode(HexagonISD::WrapperJT, dl, 743b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum getPointerTy(), TargetJT); 744b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue ShiftIndex = DAG.getNode(ISD::SHL, dl, MVT::i32, Index, 745b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getConstant(2, MVT::i32)); 746b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue JTAddress = DAG.getNode(ISD::ADD, dl, MVT::i32, JumpTableBase, 747b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ShiftIndex); 748b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue LoadTarget = DAG.getLoad(MVT::i32, dl, Chain, JTAddress, 749b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachinePointerInfo(), false, false, false, 750b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 0); 751b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::BR_JT, dl, MVT::Other, Chain, LoadTarget); 752b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 753b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 754b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 755b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 756b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerDYNAMIC_STACKALLOC(SDValue Op, 757b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG &DAG) const { 758b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Chain = Op.getOperand(0); 759b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Size = Op.getOperand(1); 760b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DebugLoc dl = Op.getDebugLoc(); 761b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 762b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned SPReg = getStackPointerRegisterToSaveRestore(); 763b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 764b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Get a reference to the stack pointer. 765b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue StackPointer = DAG.getCopyFromReg(Chain, dl, SPReg, MVT::i32); 766b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 767b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Subtract the dynamic size from the actual stack size to 768b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // obtain the new stack size. 769b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Sub = DAG.getNode(ISD::SUB, dl, MVT::i32, StackPointer, Size); 770b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 771b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 772b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // For Hexagon, the outgoing memory arguments area should be on top of the 773b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // alloca area on the stack i.e., the outgoing memory arguments should be 774b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // at a lower address than the alloca area. Move the alloca area down the 775b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // stack by adding back the space reserved for outgoing arguments to SP 776b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // here. 777b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 778b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // We do not know what the size of the outgoing args is at this point. 779b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // So, we add a pseudo instruction ADJDYNALLOC that will adjust the 780b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // stack pointer. We patch this instruction with the correct, known 781b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // offset in emitPrologue(). 782b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 783b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Use a placeholder immediate (zero) for now. This will be patched up 784b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // by emitPrologue(). 785b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue ArgAdjust = DAG.getNode(HexagonISD::ADJDYNALLOC, dl, 786b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT::i32, 787b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Sub, 788b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getConstant(0, MVT::i32)); 789b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 790b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // The Sub result contains the new stack start address, so it 791b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // must be placed in the stack pointer register. 792b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue CopyChain = DAG.getCopyToReg(Chain, dl, 793b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum TM.getRegisterInfo()->getStackRegister(), 794b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Sub); 795b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 796b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Ops[2] = { ArgAdjust, CopyChain }; 797b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getMergeValues(Ops, 2, dl); 798b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 799b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 800b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 801b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerFormalArguments(SDValue Chain, 802b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CallingConv::ID CallConv, 803b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isVarArg, 804b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const 805b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVectorImpl<ISD::InputArg> &Ins, 806b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DebugLoc dl, SelectionDAG &DAG, 807b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVectorImpl<SDValue> &InVals) 808b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumconst { 809b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 810b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFunction &MF = DAG.getMachineFunction(); 811b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFrameInfo *MFI = MF.getFrameInfo(); 812b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineRegisterInfo &RegInfo = MF.getRegInfo(); 813b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum HexagonMachineFunctionInfo *FuncInfo = 814b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MF.getInfo<HexagonMachineFunctionInfo>(); 815b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 816b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 817b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Assign locations to all of the incoming arguments. 818b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<CCValAssign, 16> ArgLocs; 819b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), 82056cb2298663017eb77aa4f4dda8db7ecd1b58173Bill Wendling getTargetMachine(), ArgLocs, *DAG.getContext()); 821b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 822b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCInfo.AnalyzeFormalArguments(Ins, CC_Hexagon); 823b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 824b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // For LLVM, in the case when returning a struct by value (>8byte), 825b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // the first argument is a pointer that points to the location on caller's 826b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // stack where the return value will be stored. For Hexagon, the location on 827b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // caller's stack is passed only when the struct size is smaller than (and 828b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // equal to) 8 bytes. If not, no address will be passed into callee and 829b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // callee return the result direclty through R0/R1. 830b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 831b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<SDValue, 4> MemOps; 832b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 833b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) { 834b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCValAssign &VA = ArgLocs[i]; 835b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy Flags = Ins[i].Flags; 836b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned ObjSize; 837b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned StackLocation; 838b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int FI; 839b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 840b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if ( (VA.isRegLoc() && !Flags.isByVal()) 841b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum || (VA.isRegLoc() && Flags.isByVal() && Flags.getByValSize() > 8)) { 842b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Arguments passed in registers 843b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 1. int, long long, ptr args that get allocated in register. 844b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 2. Large struct that gets an register to put its address in. 845b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT RegVT = VA.getLocVT(); 8467517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (RegVT == MVT::i8 || RegVT == MVT::i16 || 8477517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande RegVT == MVT::i32 || RegVT == MVT::f32) { 848b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned VReg = 849420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper RegInfo.createVirtualRegister(&Hexagon::IntRegsRegClass); 850b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RegInfo.addLiveIn(VA.getLocReg(), VReg); 851b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InVals.push_back(DAG.getCopyFromReg(Chain, dl, VReg, RegVT)); 85237097623bbde5420f81ab8d1d056700f8f258025Chandler Carruth } else if (RegVT == MVT::i64) { 853b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned VReg = 854420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper RegInfo.createVirtualRegister(&Hexagon::DoubleRegsRegClass); 855b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RegInfo.addLiveIn(VA.getLocReg(), VReg); 856b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InVals.push_back(DAG.getCopyFromReg(Chain, dl, VReg, RegVT)); 857b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 858b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum assert (0); 859b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 860b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else if (VA.isRegLoc() && Flags.isByVal() && Flags.getByValSize() <= 8) { 861b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum assert (0 && "ByValSize must be bigger than 8 bytes"); 862b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 863b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Sanity check. 864b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum assert(VA.isMemLoc()); 865b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 866b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Flags.isByVal()) { 867b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // If it's a byval parameter, then we need to compute the 868b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // "real" size, not the size of the pointer. 869b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ObjSize = Flags.getByValSize(); 870b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 871b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ObjSize = VA.getLocVT().getStoreSizeInBits() >> 3; 872b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 873b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 874b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum StackLocation = HEXAGON_LRFP_SIZE + VA.getLocMemOffset(); 875b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Create the frame index object for this incoming parameter... 876b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum FI = MFI->CreateFixedObject(ObjSize, StackLocation, true); 877b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 878b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Create the SelectionDAG nodes cordl, responding to a load 879b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // from this parameter. 880b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue FIN = DAG.getFrameIndex(FI, MVT::i32); 881b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 882b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Flags.isByVal()) { 883b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // If it's a pass-by-value aggregate, then do not dereference the stack 884b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // location. Instead, we should generate a reference to the stack 885b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // location. 886b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InVals.push_back(FIN); 887b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 888b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InVals.push_back(DAG.getLoad(VA.getLocVT(), dl, Chain, FIN, 889b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachinePointerInfo(), false, false, 890b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum false, 0)); 891b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 892b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 893b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 894b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 895b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!MemOps.empty()) 896b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, &MemOps[0], 897b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MemOps.size()); 898b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 899b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isVarArg) { 900b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // This will point to the next argument passed via stack. 901b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int FrameIndex = MFI->CreateFixedObject(Hexagon_PointerSize, 902b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum HEXAGON_LRFP_SIZE + 903b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCInfo.getNextStackOffset(), 904b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum true); 905b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum FuncInfo->setVarArgsFrameIndex(FrameIndex); 906b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 907b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 908b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return Chain; 909b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 910b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 911b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 912b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerVASTART(SDValue Op, SelectionDAG &DAG) const { 913b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // VASTART stores the address of the VarArgsFrameIndex slot into the 914b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // memory location argument. 915b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFunction &MF = DAG.getMachineFunction(); 916b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum HexagonMachineFunctionInfo *QFI = MF.getInfo<HexagonMachineFunctionInfo>(); 917b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Addr = DAG.getFrameIndex(QFI->getVarArgsFrameIndex(), MVT::i32); 918b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const Value *SV = cast<SrcValueSDNode>(Op.getOperand(2))->getValue(); 919b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getStore(Op.getOperand(0), Op.getDebugLoc(), Addr, 920b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Op.getOperand(1), MachinePointerInfo(SV), false, 921b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum false, 0); 922b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 923b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 924b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 925b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const { 9267517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue LHS = Op.getOperand(0); 9277517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue RHS = Op.getOperand(1); 9287517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue CC = Op.getOperand(4); 9297517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue TrueVal = Op.getOperand(2); 9307517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue FalseVal = Op.getOperand(3); 9317517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande DebugLoc dl = Op.getDebugLoc(); 932b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDNode* OpNode = Op.getNode(); 9337517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande EVT SVT = OpNode->getValueType(0); 9347517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 9357517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue Cond = DAG.getNode(ISD::SETCC, dl, MVT::i1, LHS, RHS, CC); 9367517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande return DAG.getNode(ISD::SELECT, dl, SVT, Cond, TrueVal, FalseVal); 9377517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande} 9387517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 9397517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish PandeSDValue 9407517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish PandeHexagonTargetLowering::LowerConstantPool(SDValue Op, SelectionDAG &DAG) const { 9417517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande EVT ValTy = Op.getValueType(); 94287eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 9437517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande DebugLoc dl = Op.getDebugLoc(); 9447517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande ConstantPoolSDNode *CP = cast<ConstantPoolSDNode>(Op); 9457517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue Res; 9467517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (CP->isMachineConstantPoolEntry()) 9477517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande Res = DAG.getTargetConstantPool(CP->getMachineCPVal(), ValTy, 9487517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande CP->getAlignment()); 9497517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande else 9507517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande Res = DAG.getTargetConstantPool(CP->getConstVal(), ValTy, 9517517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande CP->getAlignment()); 9527517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande return DAG.getNode(HexagonISD::CONST32, dl, ValTy, Res); 953b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 954b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 955b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 956b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const { 957b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const TargetRegisterInfo *TRI = TM.getRegisterInfo(); 958b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFunction &MF = DAG.getMachineFunction(); 959b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFrameInfo *MFI = MF.getFrameInfo(); 960b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MFI->setReturnAddressIsTaken(true); 961b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 962b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT VT = Op.getValueType(); 963b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DebugLoc dl = Op.getDebugLoc(); 964b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Depth = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue(); 965b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Depth) { 966b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue FrameAddr = LowerFRAMEADDR(Op, DAG); 967b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Offset = DAG.getConstant(4, MVT::i32); 968b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getLoad(VT, dl, DAG.getEntryNode(), 969b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getNode(ISD::ADD, dl, VT, FrameAddr, Offset), 970b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachinePointerInfo(), false, false, false, 0); 971b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 972b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 973b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Return LR, which contains the return address. Mark it an implicit live-in. 974b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Reg = MF.addLiveIn(TRI->getRARegister(), getRegClassFor(MVT::i32)); 975b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getCopyFromReg(DAG.getEntryNode(), dl, Reg, VT); 976b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 977b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 978b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 979b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const { 980b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const HexagonRegisterInfo *TRI = TM.getRegisterInfo(); 981b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo(); 982b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MFI->setFrameAddressIsTaken(true); 983b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 984b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT VT = Op.getValueType(); 985b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DebugLoc dl = Op.getDebugLoc(); 986b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Depth = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue(); 987b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue FrameAddr = DAG.getCopyFromReg(DAG.getEntryNode(), dl, 988b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum TRI->getFrameRegister(), VT); 989b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum while (Depth--) 990b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum FrameAddr = DAG.getLoad(VT, dl, DAG.getEntryNode(), FrameAddr, 991b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachinePointerInfo(), 992b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum false, false, false, 0); 993b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return FrameAddr; 994b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 995b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 996b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 997b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue HexagonTargetLowering::LowerMEMBARRIER(SDValue Op, 998b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG& DAG) const { 999b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DebugLoc dl = Op.getDebugLoc(); 1000b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::BARRIER, dl, MVT::Other, Op.getOperand(0)); 1001b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1002b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1003b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1004b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue HexagonTargetLowering::LowerATOMIC_FENCE(SDValue Op, 1005b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG& DAG) const { 1006b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DebugLoc dl = Op.getDebugLoc(); 1007b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::BARRIER, dl, MVT::Other, Op.getOperand(0)); 1008b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1009b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1010b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1011b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue HexagonTargetLowering::LowerGLOBALADDRESS(SDValue Op, 1012b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG &DAG) const { 1013b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Result; 1014b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal(); 1015b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int64_t Offset = cast<GlobalAddressSDNode>(Op)->getOffset(); 1016b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DebugLoc dl = Op.getDebugLoc(); 1017b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Result = DAG.getTargetGlobalAddress(GV, dl, getPointerTy(), Offset); 1018b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1019b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum HexagonTargetObjectFile &TLOF = 1020b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum (HexagonTargetObjectFile&)getObjFileLowering(); 1021b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (TLOF.IsGlobalInSmallSection(GV, getTargetMachine())) { 1022b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::CONST32_GP, dl, getPointerTy(), Result); 1023b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1024b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1025b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::CONST32, dl, getPointerTy(), Result); 1026b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1027b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1028b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 1029b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// TargetLowering Implementation 1030b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 1031b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1032b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::HexagonTargetLowering(HexagonTargetMachine 1033b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum &targetmachine) 1034b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum : TargetLowering(targetmachine, new HexagonTargetObjectFile()), 1035b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum TM(targetmachine) { 1036b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 10377517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande const HexagonRegisterInfo* QRI = TM.getRegisterInfo(); 10387517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 1039b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Set up the register classes. 1040420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper addRegisterClass(MVT::i32, &Hexagon::IntRegsRegClass); 1041420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper addRegisterClass(MVT::i64, &Hexagon::DoubleRegsRegClass); 1042b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 10437517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (QRI->Subtarget.hasV5TOps()) { 10447517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande addRegisterClass(MVT::f32, &Hexagon::IntRegsRegClass); 10457517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande addRegisterClass(MVT::f64, &Hexagon::DoubleRegsRegClass); 10467517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande } 10477517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 1048420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper addRegisterClass(MVT::i1, &Hexagon::PredRegsRegClass); 1049b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1050b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum computeRegisterProperties(); 1051b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1052b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Align loop entry 1053b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setPrefLoopAlignment(4); 1054b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1055b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Limits for inline expansion of memcpy/memmove 1056b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum maxStoresPerMemcpy = 6; 1057b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum maxStoresPerMemmove = 6; 1058b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1059b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 1060b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Library calls for unsupported operations 1061b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 1062b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1063b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::SINTTOFP_I128_F64, "__hexagon_floattidf"); 1064b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::SINTTOFP_I128_F32, "__hexagon_floattisf"); 1065b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1066b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::FPTOUINT_F32_I128, "__hexagon_fixunssfti"); 1067b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::FPTOUINT_F64_I128, "__hexagon_fixunsdfti"); 1068b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1069b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::FPTOSINT_F32_I128, "__hexagon_fixsfti"); 1070b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::FPTOSINT_F64_I128, "__hexagon_fixdfti"); 1071b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1072b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::SDIV_I32, "__hexagon_divsi3"); 1073b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SDIV, MVT::i32, Expand); 1074b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::SREM_I32, "__hexagon_umodsi3"); 1075b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SREM, MVT::i32, Expand); 1076b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1077b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::SDIV_I64, "__hexagon_divdi3"); 1078b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SDIV, MVT::i64, Expand); 1079b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::SREM_I64, "__hexagon_moddi3"); 1080b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SREM, MVT::i64, Expand); 1081b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1082b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::UDIV_I32, "__hexagon_udivsi3"); 1083b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UDIV, MVT::i32, Expand); 1084b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1085b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::UDIV_I64, "__hexagon_udivdi3"); 1086b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UDIV, MVT::i64, Expand); 1087b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1088b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::UREM_I32, "__hexagon_umodsi3"); 1089b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UREM, MVT::i32, Expand); 1090b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1091b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::UREM_I64, "__hexagon_umoddi3"); 1092b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UREM, MVT::i64, Expand); 1093b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1094b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::DIV_F32, "__hexagon_divsf3"); 1095b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FDIV, MVT::f32, Expand); 1096b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1097b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::DIV_F64, "__hexagon_divdf3"); 1098b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FDIV, MVT::f64, Expand); 1099b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 11007517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FSQRT, MVT::f32, Expand); 11017517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FSQRT, MVT::f64, Expand); 11027517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FSIN, MVT::f32, Expand); 11037517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FSIN, MVT::f64, Expand); 11047517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11057517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (QRI->Subtarget.hasV5TOps()) { 11067517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // Hexagon V5 Support. 11077517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FADD, MVT::f32, Legal); 11087517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FADD, MVT::f64, Legal); 11097517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_EXTEND, MVT::f32, Legal); 11107517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOEQ, MVT::f32, Legal); 11117517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOEQ, MVT::f64, Legal); 11127517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUEQ, MVT::f32, Legal); 11137517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUEQ, MVT::f64, Legal); 11147517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11157517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGE, MVT::f32, Legal); 11167517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGE, MVT::f64, Legal); 11177517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUGE, MVT::f32, Legal); 11187517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUGE, MVT::f64, Legal); 11197517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11207517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGT, MVT::f32, Legal); 11217517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGT, MVT::f64, Legal); 11227517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUGT, MVT::f32, Legal); 11237517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUGT, MVT::f64, Legal); 11247517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11257517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLE, MVT::f32, Legal); 11267517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLE, MVT::f64, Legal); 11277517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLT, MVT::f32, Legal); 11287517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLT, MVT::f64, Legal); 11297517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11307517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::ConstantFP, MVT::f32, Legal); 11317517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::ConstantFP, MVT::f64, Legal); 11327517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11337517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_UINT, MVT::i1, Promote); 11347517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::i1, Promote); 11357517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::UINT_TO_FP, MVT::i1, Promote); 11367517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SINT_TO_FP, MVT::i1, Promote); 11377517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11387517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_UINT, MVT::i8, Promote); 11397517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::i8, Promote); 11407517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::UINT_TO_FP, MVT::i8, Promote); 11417517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SINT_TO_FP, MVT::i8, Promote); 11427517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11437517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_UINT, MVT::i16, Promote); 11447517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::i16, Promote); 11457517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::UINT_TO_FP, MVT::i16, Promote); 11467517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SINT_TO_FP, MVT::i16, Promote); 11477517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11487517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_UINT, MVT::i32, Legal); 11497517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::i32, Legal); 11507517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::UINT_TO_FP, MVT::i32, Legal); 11517517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SINT_TO_FP, MVT::i32, Legal); 11527517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11537517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_UINT, MVT::i64, Legal); 11547517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::i64, Legal); 11557517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::UINT_TO_FP, MVT::i64, Legal); 11567517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SINT_TO_FP, MVT::i64, Legal); 11577517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11587517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FABS, MVT::f32, Legal); 11597517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FABS, MVT::f64, Expand); 11607517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11617517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FNEG, MVT::f32, Legal); 11627517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FNEG, MVT::f64, Expand); 11637517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande } else { 1164b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 11657517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // Expand fp<->uint. 11667517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::i32, Expand); 11677517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_UINT, MVT::i32, Expand); 1168b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 11697517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SINT_TO_FP, MVT::i32, Expand); 11707517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::UINT_TO_FP, MVT::i32, Expand); 1171b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 11727517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SINTTOFP_I64_F32, "__hexagon_floatdisf"); 11737517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UINTTOFP_I64_F32, "__hexagon_floatundisf"); 117487eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 11757517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UINTTOFP_I32_F32, "__hexagon_floatunsisf"); 11767517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SINTTOFP_I32_F32, "__hexagon_floatsisf"); 117787eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 11787517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SINTTOFP_I64_F64, "__hexagon_floatdidf"); 11797517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UINTTOFP_I64_F64, "__hexagon_floatundidf"); 118087eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 11817517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UINTTOFP_I32_F64, "__hexagon_floatunsidf"); 11827517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SINTTOFP_I32_F64, "__hexagon_floatsidf"); 118387eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 11847517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOUINT_F32_I32, "__hexagon_fixunssfsi"); 11857517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOUINT_F32_I64, "__hexagon_fixunssfdi"); 1186b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 11877517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOSINT_F64_I64, "__hexagon_fixdfdi"); 11887517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOSINT_F32_I64, "__hexagon_fixsfdi"); 1189b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 11907517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOUINT_F64_I32, "__hexagon_fixunsdfsi"); 11917517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOUINT_F64_I64, "__hexagon_fixunsdfdi"); 119215e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 11937517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::ADD_F64, "__hexagon_adddf3"); 11947517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FADD, MVT::f64, Expand); 119515e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 11967517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::ADD_F32, "__hexagon_addsf3"); 11977517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FADD, MVT::f32, Expand); 119815e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 11997517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPEXT_F32_F64, "__hexagon_extendsfdf2"); 12007517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_EXTEND, MVT::f32, Expand); 120115e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 12027517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OEQ_F32, "__hexagon_eqsf2"); 12037517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOEQ, MVT::f32, Expand); 120415e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 12057517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OEQ_F64, "__hexagon_eqdf2"); 12067517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOEQ, MVT::f64, Expand); 1207b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12087517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OGE_F32, "__hexagon_gesf2"); 12097517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGE, MVT::f32, Expand); 1210b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12117517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OGE_F64, "__hexagon_gedf2"); 12127517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGE, MVT::f64, Expand); 12137517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12147517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OGT_F32, "__hexagon_gtsf2"); 12157517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGT, MVT::f32, Expand); 12167517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12177517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OGT_F64, "__hexagon_gtdf2"); 12187517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGT, MVT::f64, Expand); 12197517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12207517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOSINT_F64_I32, "__hexagon_fixdfsi"); 12217517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::f64, Expand); 12227517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12237517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOSINT_F32_I32, "__hexagon_fixsfsi"); 12247517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::f32, Expand); 12257517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12267517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OLE_F64, "__hexagon_ledf2"); 12277517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLE, MVT::f64, Expand); 1228b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12297517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OLE_F32, "__hexagon_lesf2"); 12307517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLE, MVT::f32, Expand); 1231b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12327517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OLT_F64, "__hexagon_ltdf2"); 12337517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLT, MVT::f64, Expand); 1234b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12357517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OLT_F32, "__hexagon_ltsf2"); 12367517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLT, MVT::f32, Expand); 1237b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12387517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::MUL_F64, "__hexagon_muldf3"); 12397517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FMUL, MVT::f64, Expand); 1240b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12417517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::MUL_F32, "__hexagon_mulsf3"); 12427517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::MUL, MVT::f32, Expand); 1243b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12447517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UNE_F64, "__hexagon_nedf2"); 12457517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUNE, MVT::f64, Expand); 1246b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12477517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UNE_F32, "__hexagon_nesf2"); 124887eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 12497517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SUB_F64, "__hexagon_subdf3"); 12507517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SUB, MVT::f64, Expand); 125187eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 12527517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SUB_F32, "__hexagon_subsf3"); 12537517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SUB, MVT::f32, Expand); 125487eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 12557517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPROUND_F64_F32, "__hexagon_truncdfsf2"); 12567517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_ROUND, MVT::f64, Expand); 125787eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 12587517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UO_F64, "__hexagon_unorddf2"); 12597517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUO, MVT::f64, Expand); 126015e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 12617517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::O_F64, "__hexagon_unorddf2"); 12627517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETO, MVT::f64, Expand); 126315e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 12647517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::O_F32, "__hexagon_unordsf2"); 12657517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETO, MVT::f32, Expand); 12667517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12677517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UO_F32, "__hexagon_unordsf2"); 12687517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUO, MVT::f32, Expand); 12697517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12707517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FABS, MVT::f32, Expand); 12717517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FABS, MVT::f64, Expand); 12727517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FNEG, MVT::f32, Expand); 12737517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FNEG, MVT::f64, Expand); 12747517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande } 12757517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12767517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SREM_I32, "__hexagon_modsi3"); 12777517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SREM, MVT::i32, Expand); 1278b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1279b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedLoadAction(ISD::POST_INC, MVT::i8, Legal); 1280b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedLoadAction(ISD::POST_INC, MVT::i16, Legal); 1281b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedLoadAction(ISD::POST_INC, MVT::i32, Legal); 1282b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedLoadAction(ISD::POST_INC, MVT::i64, Legal); 1283b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1284b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedStoreAction(ISD::POST_INC, MVT::i8, Legal); 1285b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedStoreAction(ISD::POST_INC, MVT::i16, Legal); 1286b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedStoreAction(ISD::POST_INC, MVT::i32, Legal); 1287b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedStoreAction(ISD::POST_INC, MVT::i64, Legal); 1288b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1289b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BUILD_PAIR, MVT::i64, Expand); 1290b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1291b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Turn FP extload into load/fextend. 1292b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLoadExtAction(ISD::EXTLOAD, MVT::f32, Expand); 1293b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Hexagon has a i1 sign extending load. 1294b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLoadExtAction(ISD::SEXTLOAD, MVT::i1, Expand); 1295b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Turn FP truncstore into trunc + store. 1296b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setTruncStoreAction(MVT::f64, MVT::f32, Expand); 1297b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1298b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Custom legalize GlobalAddress nodes into CONST32. 1299b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::GlobalAddress, MVT::i32, Custom); 1300b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::GlobalAddress, MVT::i8, Custom); 1301b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Truncate action? 1302b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::TRUNCATE, MVT::i64, Expand); 1303b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1304b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Hexagon doesn't have sext_inreg, replace them with shl/sra. 1305b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1 , Expand); 1306b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1307b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Hexagon has no REM or DIVREM operations. 1308b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UREM, MVT::i32, Expand); 1309b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SREM, MVT::i32, Expand); 1310b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SDIVREM, MVT::i32, Expand); 1311b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UDIVREM, MVT::i32, Expand); 1312b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SREM, MVT::i64, Expand); 1313b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SDIVREM, MVT::i64, Expand); 1314b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UDIVREM, MVT::i64, Expand); 1315b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1316b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BSWAP, MVT::i64, Expand); 1317b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1318b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Lower SELECT_CC to SETCC and SELECT. 1319b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SELECT_CC, MVT::i32, Custom); 1320b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SELECT_CC, MVT::i64, Custom); 13217517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13227517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (QRI->Subtarget.hasV5TOps()) { 13237517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13247517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // We need to make the operation type of SELECT node to be Custom, 13257517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // such that we don't go into the infinite loop of 13267517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // select -> setcc -> select_cc -> select loop. 13277517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT, MVT::f32, Custom); 13287517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT, MVT::f64, Custom); 13297517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13307517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT_CC, MVT::f32, Expand); 13317517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT_CC, MVT::f64, Expand); 13327517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT_CC, MVT::Other, Expand); 13337517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13347517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande } else { 13357517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13367517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // Hexagon has no select or setcc: expand to SELECT_CC. 13377517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT, MVT::f32, Expand); 13387517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT, MVT::f64, Expand); 13397517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13407517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // This is a workaround documented in DAGCombiner.cpp:2892 We don't 13417517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // support SELECT_CC on every type. 13427517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT_CC, MVT::Other, Expand); 13437517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13447517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande } 1345b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1346b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BR_CC, MVT::Other, Expand); 1347b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BRIND, MVT::Other, Expand); 1348b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (EmitJumpTables) { 1349b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BR_JT, MVT::Other, Custom); 1350b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 1351b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BR_JT, MVT::Other, Expand); 1352b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1353b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1354b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BR_CC, MVT::i32, Expand); 1355b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1356b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::MEMBARRIER, MVT::Other, Custom); 1357b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::ATOMIC_FENCE, MVT::Other, Custom); 1358b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1359b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FSIN , MVT::f64, Expand); 1360b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FCOS , MVT::f64, Expand); 1361b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FREM , MVT::f64, Expand); 1362b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FSIN , MVT::f32, Expand); 1363b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FCOS , MVT::f32, Expand); 1364b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FREM , MVT::f32, Expand); 1365b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::CTPOP, MVT::i32, Expand); 1366b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::CTTZ , MVT::i32, Expand); 136763974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::i32, Expand); 1368b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::CTLZ , MVT::i32, Expand); 136963974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth setOperationAction(ISD::CTLZ_ZERO_UNDEF, MVT::i32, Expand); 1370b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::ROTL , MVT::i32, Expand); 1371b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::ROTR , MVT::i32, Expand); 1372b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BSWAP, MVT::i32, Expand); 1373b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FCOPYSIGN, MVT::f64, Expand); 1374b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FCOPYSIGN, MVT::f32, Expand); 1375b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FPOW , MVT::f64, Expand); 1376b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FPOW , MVT::f32, Expand); 1377b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1378b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SHL_PARTS, MVT::i32, Expand); 1379b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SRA_PARTS, MVT::i32, Expand); 1380b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SRL_PARTS, MVT::i32, Expand); 1381b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1382b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UMUL_LOHI, MVT::i32, Expand); 1383b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SMUL_LOHI, MVT::i32, Expand); 1384b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1385b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SMUL_LOHI, MVT::i64, Expand); 1386b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UMUL_LOHI, MVT::i64, Expand); 1387b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1388b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::EXCEPTIONADDR, MVT::i64, Expand); 1389b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::EHSELECTION, MVT::i64, Expand); 1390b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::EXCEPTIONADDR, MVT::i32, Expand); 1391b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::EHSELECTION, MVT::i32, Expand); 1392b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1393b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::EH_RETURN, MVT::Other, Expand); 1394b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1395b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (TM.getSubtargetImpl()->isSubtargetV2()) { 1396b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setExceptionPointerRegister(Hexagon::R20); 1397b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setExceptionSelectorRegister(Hexagon::R21); 1398b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 1399b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setExceptionPointerRegister(Hexagon::R0); 1400b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setExceptionSelectorRegister(Hexagon::R1); 1401b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1402b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1403b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // VASTART needs to be custom lowered to use the VarArgsFrameIndex. 1404b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::VASTART , MVT::Other, Custom); 1405b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1406b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Use the default implementation. 1407b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::VAARG , MVT::Other, Expand); 1408b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::VACOPY , MVT::Other, Expand); 1409b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::VAEND , MVT::Other, Expand); 1410b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::STACKSAVE , MVT::Other, Expand); 1411b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::STACKRESTORE , MVT::Other, Expand); 1412b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1413b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1414b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32 , Custom); 1415b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::INLINEASM , MVT::Other, Custom); 1416b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1417b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setMinFunctionAlignment(2); 1418b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1419b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Needed for DYNAMIC_STACKALLOC expansion. 1420b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned StackRegister = TM.getRegisterInfo()->getStackRegister(); 1421b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setStackPointerRegisterToSaveRestore(StackRegister); 1422ee498d3254b86bceb4f441741e9f442990647ce6Andrew Trick setSchedulingPreference(Sched::VLIW); 1423b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1424b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1425b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1426b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumconst char* 1427b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::getTargetNodeName(unsigned Opcode) const { 1428b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (Opcode) { 1429b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum default: return 0; 14307517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::CONST32: return "HexagonISD::CONST32"; 1431b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case HexagonISD::ADJDYNALLOC: return "HexagonISD::ADJDYNALLOC"; 14327517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::CMPICC: return "HexagonISD::CMPICC"; 14337517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::CMPFCC: return "HexagonISD::CMPFCC"; 14347517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::BRICC: return "HexagonISD::BRICC"; 14357517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::BRFCC: return "HexagonISD::BRFCC"; 14367517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::SELECT_ICC: return "HexagonISD::SELECT_ICC"; 14377517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::SELECT_FCC: return "HexagonISD::SELECT_FCC"; 14387517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::Hi: return "HexagonISD::Hi"; 14397517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::Lo: return "HexagonISD::Lo"; 14407517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::FTOI: return "HexagonISD::FTOI"; 14417517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::ITOF: return "HexagonISD::ITOF"; 14427517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::CALL: return "HexagonISD::CALL"; 14437517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::RET_FLAG: return "HexagonISD::RET_FLAG"; 14447517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::BR_JT: return "HexagonISD::BR_JT"; 14457517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::TC_RETURN: return "HexagonISD::TC_RETURN"; 1446b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1447b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1448b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1449b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumbool 1450b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::isTruncateFree(Type *Ty1, Type *Ty2) const { 1451b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT MTy1 = EVT::getEVT(Ty1); 1452b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT MTy2 = EVT::getEVT(Ty2); 1453b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!MTy1.isSimple() || !MTy2.isSimple()) { 1454b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1455b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1456b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return ((MTy1.getSimpleVT() == MVT::i64) && (MTy2.getSimpleVT() == MVT::i32)); 1457b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1458b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1459b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumbool HexagonTargetLowering::isTruncateFree(EVT VT1, EVT VT2) const { 1460b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!VT1.isSimple() || !VT2.isSimple()) { 1461b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1462b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1463b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return ((VT1.getSimpleVT() == MVT::i64) && (VT2.getSimpleVT() == MVT::i32)); 1464b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1465b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1466b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 1467b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const { 1468b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (Op.getOpcode()) { 1469bc2198133a1836598b54b943420748e75d5dea94Craig Topper default: llvm_unreachable("Should not custom lower this!"); 14707517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case ISD::ConstantPool: return LowerConstantPool(Op, DAG); 1471b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Frame & Return address. Currently unimplemented. 14727517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case ISD::RETURNADDR: return LowerRETURNADDR(Op, DAG); 14737517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case ISD::FRAMEADDR: return LowerFRAMEADDR(Op, DAG); 1474b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::GlobalTLSAddress: 1475bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("TLS not implemented for Hexagon."); 1476b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::MEMBARRIER: return LowerMEMBARRIER(Op, DAG); 1477b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::ATOMIC_FENCE: return LowerATOMIC_FENCE(Op, DAG); 1478b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::GlobalAddress: return LowerGLOBALADDRESS(Op, DAG); 1479b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::VASTART: return LowerVASTART(Op, DAG); 1480b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::BR_JT: return LowerBR_JT(Op, DAG); 1481b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1482b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::DYNAMIC_STACKALLOC: return LowerDYNAMIC_STACKALLOC(Op, DAG); 14837517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case ISD::SELECT_CC: return LowerSELECT_CC(Op, DAG); 14847517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case ISD::SELECT: return Op; 1485b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::INTRINSIC_WO_CHAIN: return LowerINTRINSIC_WO_CHAIN(Op, DAG); 14867517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case ISD::INLINEASM: return LowerINLINEASM(Op, DAG); 1487b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1488b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1489b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1490b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1491b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1492b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1493b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 1494b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// Hexagon Scheduler Hooks 1495b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 1496b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumMachineBasicBlock * 1497b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI, 1498b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineBasicBlock *BB) 1499b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumconst { 1500b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (MI->getOpcode()) { 1501b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case Hexagon::ADJDYNALLOC: { 1502b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFunction *MF = BB->getParent(); 1503b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum HexagonMachineFunctionInfo *FuncInfo = 1504b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MF->getInfo<HexagonMachineFunctionInfo>(); 1505b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum FuncInfo->addAllocaAdjustInst(MI); 1506b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return BB; 1507b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1508bc2198133a1836598b54b943420748e75d5dea94Craig Topper default: llvm_unreachable("Unexpected instr type to insert"); 1509b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } // switch 1510b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1511b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1512b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 1513b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// Inline Assembly Support 1514b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 1515b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1516b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstd::pair<unsigned, const TargetRegisterClass*> 1517b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::getRegForInlineAsmConstraint(const 1518b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum std::string &Constraint, 1519b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT VT) const { 1520b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Constraint.size() == 1) { 1521b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (Constraint[0]) { 1522b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case 'r': // R0-R31 1523b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (VT.getSimpleVT().SimpleTy) { 1524b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum default: 1525bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("getRegForInlineAsmConstraint Unhandled data type"); 1526b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case MVT::i32: 1527b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case MVT::i16: 1528b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case MVT::i8: 15297517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case MVT::f32: 1530420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper return std::make_pair(0U, &Hexagon::IntRegsRegClass); 1531b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case MVT::i64: 15327517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case MVT::f64: 1533420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper return std::make_pair(0U, &Hexagon::DoubleRegsRegClass); 1534b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1535b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum default: 1536bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("Unknown asm register class"); 1537b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1538b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1539b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1540b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return TargetLowering::getRegForInlineAsmConstraint(Constraint, VT); 1541b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1542b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 15437517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande/// isFPImmLegal - Returns true if the target can instruction select the 15447517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande/// specified FP immediate natively. If false, the legalizer will 15457517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande/// materialize the FP immediate as a load from a constant pool. 15467517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pandebool HexagonTargetLowering::isFPImmLegal(const APFloat &Imm, EVT VT) const { 15477517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande const HexagonRegisterInfo* QRI = TM.getRegisterInfo(); 15487517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande return QRI->Subtarget.hasV5TOps(); 15497517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande} 15507517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 1551b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// isLegalAddressingMode - Return true if the addressing mode represented by 1552b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// AM is legal for this target, for a load/store of the specified type. 1553b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumbool HexagonTargetLowering::isLegalAddressingMode(const AddrMode &AM, 1554b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Type *Ty) const { 1555b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Allows a signed-extended 11-bit immediate field. 1556b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (AM.BaseOffs <= -(1LL << 13) || AM.BaseOffs >= (1LL << 13)-1) { 1557b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1558b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1559b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1560b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // No global is ever allowed as a base. 1561b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (AM.BaseGV) { 1562b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1563b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1564b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1565b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int Scale = AM.Scale; 1566b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Scale < 0) Scale = -Scale; 1567b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (Scale) { 1568b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case 0: // No scale reg, "r+i", "r", or just "i". 1569b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 1570b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum default: // No scaled addressing mode. 1571b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1572b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1573b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return true; 1574b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1575b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1576b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// isLegalICmpImmediate - Return true if the specified immediate is legal 1577b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// icmp immediate, that is the target has icmp instructions which can compare 1578b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// a register against the immediate without having to materialize the 1579b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// immediate into a register. 1580b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumbool HexagonTargetLowering::isLegalICmpImmediate(int64_t Imm) const { 1581b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return Imm >= -512 && Imm <= 511; 1582b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1583b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1584b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// IsEligibleForTailCallOptimization - Check whether the call is eligible 1585b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// for tail call optimization. Targets which want to do tail call 1586b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// optimization should implement this function. 1587b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumbool HexagonTargetLowering::IsEligibleForTailCallOptimization( 1588b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Callee, 1589b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CallingConv::ID CalleeCC, 1590b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isVarArg, 1591b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isCalleeStructRet, 1592b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isCallerStructRet, 1593b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const SmallVectorImpl<ISD::OutputArg> &Outs, 1594b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const SmallVectorImpl<SDValue> &OutVals, 1595b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const SmallVectorImpl<ISD::InputArg> &Ins, 1596b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG& DAG) const { 1597b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const Function *CallerF = DAG.getMachineFunction().getFunction(); 1598b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CallingConv::ID CallerCC = CallerF->getCallingConv(); 1599b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool CCMatch = CallerCC == CalleeCC; 1600b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1601b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // *************************************************************************** 1602b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Look for obvious safe cases to perform tail call optimization that do not 1603b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // require ABI changes. 1604b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // *************************************************************************** 1605b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1606b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // If this is a tail call via a function pointer, then don't do it! 1607b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!(dyn_cast<GlobalAddressSDNode>(Callee)) 1608b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum && !(dyn_cast<ExternalSymbolSDNode>(Callee))) { 1609b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1610b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1611b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1612b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Do not optimize if the calling conventions do not match. 1613b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!CCMatch) 1614b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1615b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1616b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Do not tail call optimize vararg calls. 1617b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isVarArg) 1618b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1619b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1620b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Also avoid tail call optimization if either caller or callee uses struct 1621b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // return semantics. 1622b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isCalleeStructRet || isCallerStructRet) 1623b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1624b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1625b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // In addition to the cases above, we also disable Tail Call Optimization if 1626b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // the calling convention code that at least one outgoing argument needs to 1627b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // go on the stack. We cannot check that here because at this point that 1628b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // information is not available. 1629b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return true; 1630b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1631