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 "HexagonMachineFunctionInfo.h" 17b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "HexagonSubtarget.h" 18d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "HexagonTargetMachine.h" 19d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "HexagonTargetObjectFile.h" 20b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/CallingConvLower.h" 21b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/MachineFrameInfo.h" 22b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/MachineFunction.h" 23b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/MachineInstrBuilder.h" 2479aa3417eb6f58d668aadfedf075240a41d35a26Craig Topper#include "llvm/CodeGen/MachineJumpTableInfo.h" 25b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/MachineRegisterInfo.h" 26b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/SelectionDAGISel.h" 27b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum#include "llvm/CodeGen/ValueTypes.h" 280b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/CallingConv.h" 290b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/DerivedTypes.h" 300b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Function.h" 310b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/GlobalAlias.h" 320b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/GlobalVariable.h" 330b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/InlineAsm.h" 340b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Intrinsics.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 } 106a4dd8d67320d86ca7dfd88cb3d0c189cab713a88Jyotsna Verma if (LocVT == MVT::i1 || LocVT == MVT::i8 || LocVT == MVT::i16) { 107a4dd8d67320d86ca7dfd88cb3d0c189cab713a88Jyotsna Verma LocVT = MVT::i32; 108a4dd8d67320d86ca7dfd88cb3d0c189cab713a88Jyotsna Verma ValVT = MVT::i32; 109a4dd8d67320d86ca7dfd88cb3d0c189cab713a88Jyotsna Verma if (ArgFlags.isSExt()) 110a4dd8d67320d86ca7dfd88cb3d0c189cab713a88Jyotsna Verma LocInfo = CCValAssign::SExt; 111a4dd8d67320d86ca7dfd88cb3d0c189cab713a88Jyotsna Verma else if (ArgFlags.isZExt()) 112a4dd8d67320d86ca7dfd88cb3d0c189cab713a88Jyotsna Verma LocInfo = CCValAssign::ZExt; 113a4dd8d67320d86ca7dfd88cb3d0c189cab713a88Jyotsna Verma else 114a4dd8d67320d86ca7dfd88cb3d0c189cab713a88Jyotsna Verma LocInfo = CCValAssign::AExt; 115a4dd8d67320d86ca7dfd88cb3d0c189cab713a88Jyotsna Verma } 1167517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i32 || LocVT == MVT::f32) { 117b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ofst = State.AllocateStack(4, 4); 118b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, ofst, LocVT, LocInfo)); 119b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 120b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1217517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i64 || LocVT == MVT::f64) { 122b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ofst = State.AllocateStack(8, 8); 123b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, ofst, LocVT, LocInfo)); 124b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 125b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 126b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum llvm_unreachable(0); 127b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 128b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 129b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 130b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool 131b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumCC_Hexagon (unsigned ValNo, MVT ValVT, 132b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 133b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 134b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 135b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (ArgFlags.isByVal()) { 136b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Passed on stack. 137b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum assert ((ArgFlags.getByValSize() > 8) && 138b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum "ByValSize must be bigger than 8 bytes"); 139b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Offset = State.AllocateStack(ArgFlags.getByValSize(), 4); 140b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo)); 141b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 142b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 143b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 144b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (LocVT == MVT::i1 || LocVT == MVT::i8 || LocVT == MVT::i16) { 145b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocVT = MVT::i32; 146b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ValVT = MVT::i32; 147b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (ArgFlags.isSExt()) 148b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocInfo = CCValAssign::SExt; 149b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum else if (ArgFlags.isZExt()) 150b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocInfo = CCValAssign::ZExt; 151b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum else 152b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocInfo = CCValAssign::AExt; 153b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 154b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1557517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i32 || LocVT == MVT::f32) { 156b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!CC_Hexagon32(ValNo, ValVT, LocVT, LocInfo, ArgFlags, State)) 157b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 158b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 159b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1607517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i64 || LocVT == MVT::f64) { 161b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!CC_Hexagon64(ValNo, ValVT, LocVT, LocInfo, ArgFlags, State)) 162b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 163b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 164b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 165b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return true; // CC didn't match. 166b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 167b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 168b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 169b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool CC_Hexagon32(unsigned ValNo, MVT ValVT, 170b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 171b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 172b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 173c5eaae4e9bc75b203b3a9922b480729bc4f340e2Craig Topper static const uint16_t RegList[] = { 174b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Hexagon::R0, Hexagon::R1, Hexagon::R2, Hexagon::R3, Hexagon::R4, 175b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Hexagon::R5 176b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum }; 177b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (unsigned Reg = State.AllocateReg(RegList, 6)) { 178b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getReg(ValNo, ValVT, Reg, LocVT, LocInfo)); 179b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 180b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 181b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 182b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Offset = State.AllocateStack(4, 4); 183b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo)); 184b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 185b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 186b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 187b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool CC_Hexagon64(unsigned ValNo, MVT ValVT, 188b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 189b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 190b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 191b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (unsigned Reg = State.AllocateReg(Hexagon::D0)) { 192b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getReg(ValNo, ValVT, Reg, LocVT, LocInfo)); 193b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 194b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 195b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 196c5eaae4e9bc75b203b3a9922b480729bc4f340e2Craig Topper static const uint16_t RegList1[] = { 197b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Hexagon::D1, Hexagon::D2 198b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum }; 199c5eaae4e9bc75b203b3a9922b480729bc4f340e2Craig Topper static const uint16_t RegList2[] = { 200b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Hexagon::R1, Hexagon::R3 201b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum }; 202b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (unsigned Reg = State.AllocateReg(RegList1, RegList2, 2)) { 203b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getReg(ValNo, ValVT, Reg, LocVT, LocInfo)); 204b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 205b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 206b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 207b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Offset = State.AllocateStack(8, 8, Hexagon::D2); 208b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo)); 209b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 210b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 211b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 212b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool RetCC_Hexagon(unsigned ValNo, MVT ValVT, 213b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 214b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 215b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 216b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 217b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (LocVT == MVT::i1 || 218b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocVT == MVT::i8 || 219b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocVT == MVT::i16) { 220b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocVT = MVT::i32; 221b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ValVT = MVT::i32; 222b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (ArgFlags.isSExt()) 223b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocInfo = CCValAssign::SExt; 224b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum else if (ArgFlags.isZExt()) 225b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocInfo = CCValAssign::ZExt; 226b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum else 227b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum LocInfo = CCValAssign::AExt; 228b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 229b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 2307517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i32 || LocVT == MVT::f32) { 231b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!RetCC_Hexagon32(ValNo, ValVT, LocVT, LocInfo, ArgFlags, State)) 232b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 233b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 234b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 2357517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i64 || LocVT == MVT::f64) { 236b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!RetCC_Hexagon64(ValNo, ValVT, LocVT, LocInfo, ArgFlags, State)) 237b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 238b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 239b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 240b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return true; // CC didn't match. 241b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 242b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 243b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool RetCC_Hexagon32(unsigned ValNo, MVT ValVT, 244b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 245b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 246b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 2477517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i32 || LocVT == MVT::f32) { 248b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (unsigned Reg = State.AllocateReg(Hexagon::R0)) { 249b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getReg(ValNo, ValVT, Reg, LocVT, LocInfo)); 250b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 251b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 252b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 253b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 254b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Offset = State.AllocateStack(4, 4); 255b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo)); 256b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 257b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 258b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 259b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool RetCC_Hexagon64(unsigned ValNo, MVT ValVT, 260b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT LocVT, CCValAssign::LocInfo LocInfo, 261b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy ArgFlags, CCState &State) { 2627517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (LocVT == MVT::i64 || LocVT == MVT::f64) { 263b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (unsigned Reg = State.AllocateReg(Hexagon::D0)) { 264b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getReg(ValNo, ValVT, Reg, LocVT, LocInfo)); 265b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 266b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 267b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 268b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 269b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Offset = State.AllocateStack(8, 8); 270b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo)); 271b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 272b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 273b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 274b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 275b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) 276b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumconst { 277b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return SDValue(); 278b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 279b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 280b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// CreateCopyOfByValArgument - Make a copy of an aggregate at address specified 281b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// by "Src" to address "Dst" of size "Size". Alignment information is 282b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// specified by the specific parameter attribute. The copy will be passed as 283b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// a byval function parameter. Sometimes what we are copying is the end of a 284b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// larger object, the part that does not fit in registers. 285b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic SDValue 286b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumCreateCopyOfByValArgument(SDValue Src, SDValue Dst, SDValue Chain, 287b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy Flags, SelectionDAG &DAG, 288ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl) { 289b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 290b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue SizeNode = DAG.getConstant(Flags.getByValSize(), MVT::i32); 291b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getMemcpy(Chain, dl, Dst, Src, SizeNode, Flags.getByValAlign(), 292b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum /*isVolatile=*/false, /*AlwaysInline=*/false, 293b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachinePointerInfo(), MachinePointerInfo()); 294b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 295b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 296b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 297b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// LowerReturn - Lower ISD::RET. If a struct is larger than 8 bytes and is 298b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// passed by value, the function prototype is modified to return void and 299b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// the value is stored in memory pointed by a pointer passed by caller. 300b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 301b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerReturn(SDValue Chain, 302b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CallingConv::ID CallConv, bool isVarArg, 303b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const SmallVectorImpl<ISD::OutputArg> &Outs, 304b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const SmallVectorImpl<SDValue> &OutVals, 305ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl, SelectionDAG &DAG) const { 306b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 307b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // CCValAssign - represent the assignment of the return value to locations. 308b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<CCValAssign, 16> RVLocs; 309b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 310b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // CCState - Info about the registers and stack slot. 311b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), 31256cb2298663017eb77aa4f4dda8db7ecd1b58173Bill Wendling getTargetMachine(), RVLocs, *DAG.getContext()); 313b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 314b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Analyze return values of ISD::RET 315b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCInfo.AnalyzeReturn(Outs, RetCC_Hexagon); 316b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 317b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Flag; 31887b87ad8fb8671efb5577dbfd40c02248862cc8dJakob Stoklund Olesen SmallVector<SDValue, 4> RetOps(1, Chain); 31987b87ad8fb8671efb5577dbfd40c02248862cc8dJakob Stoklund Olesen 320b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Copy the result values into the output registers. 321b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0; i != RVLocs.size(); ++i) { 322b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCValAssign &VA = RVLocs[i]; 323b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 324b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getCopyToReg(Chain, dl, VA.getLocReg(), OutVals[i], Flag); 325b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 326b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Guarantee that all emitted copies are stuck together with flags. 327b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Flag = Chain.getValue(1); 32887b87ad8fb8671efb5577dbfd40c02248862cc8dJakob Stoklund Olesen RetOps.push_back(DAG.getRegister(VA.getLocReg(), VA.getLocVT())); 329b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 330b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 33187b87ad8fb8671efb5577dbfd40c02248862cc8dJakob Stoklund Olesen RetOps[0] = Chain; // Update chain. 33287b87ad8fb8671efb5577dbfd40c02248862cc8dJakob Stoklund Olesen 33387b87ad8fb8671efb5577dbfd40c02248862cc8dJakob Stoklund Olesen // Add the flag if we have it. 334b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Flag.getNode()) 33587b87ad8fb8671efb5577dbfd40c02248862cc8dJakob Stoklund Olesen RetOps.push_back(Flag); 336b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 33787b87ad8fb8671efb5577dbfd40c02248862cc8dJakob Stoklund Olesen return DAG.getNode(HexagonISD::RET_FLAG, dl, MVT::Other, 33887b87ad8fb8671efb5577dbfd40c02248862cc8dJakob Stoklund Olesen &RetOps[0], RetOps.size()); 339b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 340b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 341b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 342b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 343b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 344b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// LowerCallResult - Lower the result values of an ISD::CALL into the 345b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// appropriate copies out of appropriate physical registers. This assumes that 346b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// Chain/InFlag are the input chain/flag to use, and that TheCall is the call 347b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// being lowered. Returns a SDNode with the same number of values as the 348b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// ISD::CALL. 349b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 350b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerCallResult(SDValue Chain, SDValue InFlag, 351b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CallingConv::ID CallConv, bool isVarArg, 352b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const 353b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVectorImpl<ISD::InputArg> &Ins, 354ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl, SelectionDAG &DAG, 355b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVectorImpl<SDValue> &InVals, 356b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const SmallVectorImpl<SDValue> &OutVals, 357b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Callee) const { 358b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 359b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Assign locations to each value returned by this call. 360b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<CCValAssign, 16> RVLocs; 361b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 362b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), 36356cb2298663017eb77aa4f4dda8db7ecd1b58173Bill Wendling getTargetMachine(), RVLocs, *DAG.getContext()); 364b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 365b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCInfo.AnalyzeCallResult(Ins, RetCC_Hexagon); 366b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 367b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Copy all of the result registers out of their specified physreg. 368b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0; i != RVLocs.size(); ++i) { 369b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getCopyFromReg(Chain, dl, 370b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RVLocs[i].getLocReg(), 371b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RVLocs[i].getValVT(), InFlag).getValue(1); 372b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag = Chain.getValue(2); 373b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InVals.push_back(Chain.getValue(0)); 374b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 375b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 376b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return Chain; 377b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 378b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 379b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// LowerCall - Functions arguments are copied from virtual regs to 380b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// (physical regs)/(stack frame), CALLSEQ_START and CALLSEQ_END are emitted. 381b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 382d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin HolewinskiHexagonTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, 383b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVectorImpl<SDValue> &InVals) const { 384d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski SelectionDAG &DAG = CLI.DAG; 385a0ec3f9b7b826b9b40b80199923b664bad808cceCraig Topper SDLoc &dl = CLI.DL; 386a0ec3f9b7b826b9b40b80199923b664bad808cceCraig Topper SmallVectorImpl<ISD::OutputArg> &Outs = CLI.Outs; 387a0ec3f9b7b826b9b40b80199923b664bad808cceCraig Topper SmallVectorImpl<SDValue> &OutVals = CLI.OutVals; 388a0ec3f9b7b826b9b40b80199923b664bad808cceCraig Topper SmallVectorImpl<ISD::InputArg> &Ins = CLI.Ins; 389d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski SDValue Chain = CLI.Chain; 390d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski SDValue Callee = CLI.Callee; 391d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski bool &isTailCall = CLI.IsTailCall; 392d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski CallingConv::ID CallConv = CLI.CallConv; 393d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski bool isVarArg = CLI.IsVarArg; 394b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 395b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool IsStructRet = (Outs.empty()) ? false : Outs[0].Flags.isSRet(); 396b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 397b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Analyze operands of the call, assigning locations to each operand. 398b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<CCValAssign, 16> ArgLocs; 399b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), 40056cb2298663017eb77aa4f4dda8db7ecd1b58173Bill Wendling getTargetMachine(), ArgLocs, *DAG.getContext()); 401b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 402b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Check for varargs. 403b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum NumNamedVarArgParams = -1; 404b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (GlobalAddressSDNode *GA = dyn_cast<GlobalAddressSDNode>(Callee)) 405b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum { 406b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const Function* CalleeFn = NULL; 407b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Callee = DAG.getTargetGlobalAddress(GA->getGlobal(), dl, MVT::i32); 408b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if ((CalleeFn = dyn_cast<Function>(GA->getGlobal()))) 409b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum { 410b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // If a function has zero args and is a vararg function, that's 411b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // disallowed so it must be an undeclared function. Do not assume 412b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // varargs if the callee is undefined. 413b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (CalleeFn->isVarArg() && 414b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CalleeFn->getFunctionType()->getNumParams() != 0) { 415b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum NumNamedVarArgParams = CalleeFn->getFunctionType()->getNumParams(); 416b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 417b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 418b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 419b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 420b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (NumNamedVarArgParams > 0) 421b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCInfo.AnalyzeCallOperands(Outs, CC_Hexagon_VarArg); 422b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum else 423b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCInfo.AnalyzeCallOperands(Outs, CC_Hexagon); 424b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 425b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 426b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if(isTailCall) { 427b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool StructAttrFlag = 428b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getMachineFunction().getFunction()->hasStructRetAttr(); 429b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum isTailCall = IsEligibleForTailCallOptimization(Callee, CallConv, 430b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum isVarArg, IsStructRet, 431b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum StructAttrFlag, 432b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Outs, OutVals, Ins, DAG); 433b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i){ 434b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCValAssign &VA = ArgLocs[i]; 435b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (VA.isMemLoc()) { 436b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum isTailCall = false; 437b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 438b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 439b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 440b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isTailCall) { 441b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DEBUG(dbgs () << "Eligible for Tail Call\n"); 442b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 443b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DEBUG(dbgs () << 444b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum "Argument must be passed on stack. Not eligible for Tail Call\n"); 445b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 446b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 447b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Get a count of how many bytes are to be pushed on the stack. 448b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned NumBytes = CCInfo.getNextStackOffset(); 449b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<std::pair<unsigned, SDValue>, 16> RegsToPass; 450b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<SDValue, 8> MemOpChains; 451b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 452b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue StackPtr = 453b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getCopyFromReg(Chain, dl, TM.getRegisterInfo()->getStackRegister(), 454b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum getPointerTy()); 455b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 456b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Walk the register/memloc assignments, inserting copies/loads. 457b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) { 458b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCValAssign &VA = ArgLocs[i]; 459b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Arg = OutVals[i]; 460b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy Flags = Outs[i].Flags; 461b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 462b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Promote the value if needed. 463b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (VA.getLocInfo()) { 464b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum default: 465b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Loc info must be one of Full, SExt, ZExt, or AExt. 466bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("Unknown loc info!"); 467b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case CCValAssign::Full: 468b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 469b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case CCValAssign::SExt: 470b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Arg = DAG.getNode(ISD::SIGN_EXTEND, dl, VA.getLocVT(), Arg); 471b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 472b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case CCValAssign::ZExt: 473b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Arg = DAG.getNode(ISD::ZERO_EXTEND, dl, VA.getLocVT(), Arg); 474b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 475b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case CCValAssign::AExt: 476b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Arg = DAG.getNode(ISD::ANY_EXTEND, dl, VA.getLocVT(), Arg); 477b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 478b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 479b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 480b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (VA.isMemLoc()) { 481b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned LocMemOffset = VA.getLocMemOffset(); 482b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue PtrOff = DAG.getConstant(LocMemOffset, StackPtr.getValueType()); 483b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum PtrOff = DAG.getNode(ISD::ADD, dl, MVT::i32, StackPtr, PtrOff); 484b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 485b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Flags.isByVal()) { 486b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // The argument is a struct passed by value. According to LLVM, "Arg" 487b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // is is pointer. 488b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MemOpChains.push_back(CreateCopyOfByValArgument(Arg, PtrOff, Chain, 489b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Flags, DAG, dl)); 490b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 491b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // The argument is not passed by value. "Arg" is a buildin type. It is 492b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // not a pointer. 493b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MemOpChains.push_back(DAG.getStore(Chain, dl, Arg, PtrOff, 494b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachinePointerInfo(),false, false, 495b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 0)); 496b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 497b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum continue; 498b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 499b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 500b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Arguments that can be passed on register must be kept at RegsToPass 501b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // vector. 502b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (VA.isRegLoc()) { 503b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg)); 504b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 505b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 506b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 507b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Transform all store nodes into one single node because all store 508b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // nodes are independent of each other. 509b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!MemOpChains.empty()) { 510b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, &MemOpChains[0], 511b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MemOpChains.size()); 512b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 513b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 514b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!isTailCall) 515b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getCALLSEQ_START(Chain, DAG.getConstant(NumBytes, 5166e0b2a0cb0d398f175a5294bf0ad5488c714e8c2Andrew Trick getPointerTy(), true), 5176e0b2a0cb0d398f175a5294bf0ad5488c714e8c2Andrew Trick dl); 518b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 519b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Build a sequence of copy-to-reg nodes chained together with token 520b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // chain and flag operands which copy the outgoing args into registers. 521d9b0b025612992a0b724eeca8bdf10b1d7a5c355Benjamin Kramer // The InFlag in necessary since all emitted instructions must be 522b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // stuck together. 523b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue InFlag; 524b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!isTailCall) { 525b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) { 526b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getCopyToReg(Chain, dl, RegsToPass[i].first, 527b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RegsToPass[i].second, InFlag); 528b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag = Chain.getValue(1); 529b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 530b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 531b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 532b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // For tail calls lower the arguments to the 'real' stack slot. 533b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isTailCall) { 534b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Force all the incoming stack arguments to be loaded from the stack 535b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // before any new outgoing arguments are stored to the stack, because the 536b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // outgoing stack slots may alias the incoming argument stack slots, and 537b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // the alias isn't otherwise explicit. This is slightly more conservative 538b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // than necessary, because it means that each store effectively depends 539b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // on every argument instead of just those arguments it would clobber. 540b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 541d9b0b025612992a0b724eeca8bdf10b1d7a5c355Benjamin Kramer // Do not flag preceding copytoreg stuff together with the following stuff. 542b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag = SDValue(); 543b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) { 544b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getCopyToReg(Chain, dl, RegsToPass[i].first, 545b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RegsToPass[i].second, InFlag); 546b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag = Chain.getValue(1); 547b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 548b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag =SDValue(); 549b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 550b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 551b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // If the callee is a GlobalAddress/ExternalSymbol node (quite common, every 552b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // direct call is) turn it into a TargetGlobalAddress/TargetExternalSymbol 553b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // node so that legalize doesn't hack it. 554b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (flag_aligned_memcpy) { 555b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const char *MemcpyName = 556b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum "__hexagon_memcpy_likely_aligned_min32bytes_mult8bytes"; 557b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Callee = 558b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getTargetExternalSymbol(MemcpyName, getPointerTy()); 559b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum flag_aligned_memcpy = false; 560b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee)) { 561b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Callee = DAG.getTargetGlobalAddress(G->getGlobal(), dl, getPointerTy()); 562b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else if (ExternalSymbolSDNode *S = 563b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum dyn_cast<ExternalSymbolSDNode>(Callee)) { 564b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Callee = DAG.getTargetExternalSymbol(S->getSymbol(), getPointerTy()); 565b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 566b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 567b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Returns a chain & a flag for retval copy to use. 568b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDVTList NodeTys = DAG.getVTList(MVT::Other, MVT::Glue); 569b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<SDValue, 8> Ops; 570b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Ops.push_back(Chain); 571b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Ops.push_back(Callee); 572b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 573b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Add argument registers to the end of the list so that they are 574b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // known live into the call. 575b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) { 576b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Ops.push_back(DAG.getRegister(RegsToPass[i].first, 577b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RegsToPass[i].second.getValueType())); 578b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 579b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 580b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (InFlag.getNode()) { 581b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Ops.push_back(InFlag); 582b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 583b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 584b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isTailCall) 585b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::TC_RETURN, dl, NodeTys, &Ops[0], Ops.size()); 586b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 587b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getNode(HexagonISD::CALL, dl, NodeTys, &Ops[0], Ops.size()); 588b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag = Chain.getValue(1); 589b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 590b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Create the CALLSEQ_END node. 591b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(NumBytes, true), 5926e0b2a0cb0d398f175a5294bf0ad5488c714e8c2Andrew Trick DAG.getIntPtrConstant(0, true), InFlag, dl); 593b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InFlag = Chain.getValue(1); 594b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 595b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Handle result values, copying them out of physregs into vregs that we 596b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // return. 597b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return LowerCallResult(Chain, InFlag, CallConv, isVarArg, Ins, dl, DAG, 598b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InVals, OutVals, Callee); 599b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 600b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 601b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool getIndexedAddressParts(SDNode *Ptr, EVT VT, 602b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isSEXTLoad, SDValue &Base, 603b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue &Offset, bool &isInc, 604b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG &DAG) { 605b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Ptr->getOpcode() != ISD::ADD) 606b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 607b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 608b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (VT == MVT::i64 || VT == MVT::i32 || VT == MVT::i16 || VT == MVT::i8) { 609b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum isInc = (Ptr->getOpcode() == ISD::ADD); 610b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Base = Ptr->getOperand(0); 611b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Offset = Ptr->getOperand(1); 612b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Ensure that Offset is a constant. 613b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return (isa<ConstantSDNode>(Offset)); 614b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 615b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 616b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 617b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 618b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 619b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// TODO: Put this function along with the other isS* functions in 620b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// HexagonISelDAGToDAG.cpp into a common file. Or better still, use the 6216ee1e0867d24dff28683ec3525e61472c597b6afRafael Espindola// functions defined in HexagonOperands.td. 622b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstatic bool Is_PostInc_S4_Offset(SDNode * S, int ShiftAmount) { 623b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ConstantSDNode *N = cast<ConstantSDNode>(S); 624b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 625b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // immS4 predicate - True if the immediate fits in a 4-bit sign extended. 626b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // field. 627b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int64_t v = (int64_t)N->getSExtValue(); 628b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int64_t m = 0; 629b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (ShiftAmount > 0) { 630b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum m = v % ShiftAmount; 631b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum v = v >> ShiftAmount; 632b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 633b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return (v <= 7) && (v >= -8) && (m == 0); 634b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 635b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 636b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// getPostIndexedAddressParts - returns true by value, base pointer and 637b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// offset pointer and addressing mode by reference if this node can be 638b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// combined with a load / store to form a post-indexed load / store. 639b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumbool HexagonTargetLowering::getPostIndexedAddressParts(SDNode *N, SDNode *Op, 640b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue &Base, 641b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue &Offset, 642b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::MemIndexedMode &AM, 643b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG &DAG) const 644b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum{ 645b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT VT; 646b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Ptr; 647b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isSEXTLoad = false; 648b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 649b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N)) { 650b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum VT = LD->getMemoryVT(); 651b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum isSEXTLoad = LD->getExtensionType() == ISD::SEXTLOAD; 652b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) { 653b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum VT = ST->getMemoryVT(); 654b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (ST->getValue().getValueType() == MVT::i64 && ST->isTruncatingStore()) { 655b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 656b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 657b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 658b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 659b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 660b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 6616da0ef9ca408ac39ba3af76f5571756792511134Chad Rosier bool isInc = false; 662b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isLegal = getIndexedAddressParts(Op, VT, isSEXTLoad, Base, Offset, 663b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum isInc, DAG); 664b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // ShiftAmount = number of left-shifted bits in the Hexagon instruction. 665b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int ShiftAmount = VT.getSizeInBits() / 16; 666b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isLegal && Is_PostInc_S4_Offset(Offset.getNode(), ShiftAmount)) { 667b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum AM = isInc ? ISD::POST_INC : ISD::POST_DEC; 668b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return true; 669b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 670b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 671b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 672b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 673b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 674b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue HexagonTargetLowering::LowerINLINEASM(SDValue Op, 675b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG &DAG) const { 676b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDNode *Node = Op.getNode(); 677b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFunction &MF = DAG.getMachineFunction(); 678b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum HexagonMachineFunctionInfo *FuncInfo = 679b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MF.getInfo<HexagonMachineFunctionInfo>(); 680b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (Node->getOpcode()) { 681b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::INLINEASM: { 682b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned NumOps = Node->getNumOperands(); 683b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Node->getOperand(NumOps-1).getValueType() == MVT::Glue) 684b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum --NumOps; // Ignore the flag operand. 685b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 686b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = InlineAsm::Op_FirstOperand; i != NumOps;) { 687b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (FuncInfo->hasClobberLR()) 688b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 689b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Flags = 690b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum cast<ConstantSDNode>(Node->getOperand(i))->getZExtValue(); 691b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned NumVals = InlineAsm::getNumOperandRegisters(Flags); 692b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ++i; // Skip the ID value. 693b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 694b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (InlineAsm::getKind(Flags)) { 695b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum default: llvm_unreachable("Bad flags!"); 696b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case InlineAsm::Kind_RegDef: 697b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case InlineAsm::Kind_RegUse: 698b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case InlineAsm::Kind_Imm: 699b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case InlineAsm::Kind_Clobber: 700b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case InlineAsm::Kind_Mem: { 701b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (; NumVals; --NumVals, ++i) {} 702b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 703b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 704b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case InlineAsm::Kind_RegDefEarlyClobber: { 705b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (; NumVals; --NumVals, ++i) { 706b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Reg = 707b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum cast<RegisterSDNode>(Node->getOperand(i))->getReg(); 708b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 709b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Check it to be lr 710b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Reg == TM.getRegisterInfo()->getRARegister()) { 711b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum FuncInfo->setHasClobberLR(true); 712b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 713b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 714b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 715b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 716b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 717b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 718b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 719b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 720b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } // Node->getOpcode 721b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return Op; 722b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 723b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 724b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 725b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// 726b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// Taken from the XCore backend. 727b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// 728b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue HexagonTargetLowering:: 729b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumLowerBR_JT(SDValue Op, SelectionDAG &DAG) const 730b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum{ 731b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Chain = Op.getOperand(0); 732b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Table = Op.getOperand(1); 733b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Index = Op.getOperand(2); 734ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl(Op); 735b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum JumpTableSDNode *JT = cast<JumpTableSDNode>(Table); 736b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned JTI = JT->getIndex(); 737b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFunction &MF = DAG.getMachineFunction(); 738b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const MachineJumpTableInfo *MJTI = MF.getJumpTableInfo(); 739b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue TargetJT = DAG.getTargetJumpTable(JT->getIndex(), MVT::i32); 740b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 741b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Mark all jump table targets as address taken. 742b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const std::vector<MachineJumpTableEntry> &JTE = MJTI->getJumpTables(); 743b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const std::vector<MachineBasicBlock*> &JTBBs = JTE[JTI].MBBs; 744b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = JTBBs.size(); i != e; ++i) { 745b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineBasicBlock *MBB = JTBBs[i]; 746b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MBB->setHasAddressTaken(); 747b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // This line is needed to set the hasAddressTaken flag on the BasicBlock 748b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // object. 749b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum BlockAddress::get(const_cast<BasicBlock *>(MBB->getBasicBlock())); 750b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 751b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 752b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue JumpTableBase = DAG.getNode(HexagonISD::WrapperJT, dl, 753b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum getPointerTy(), TargetJT); 754b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue ShiftIndex = DAG.getNode(ISD::SHL, dl, MVT::i32, Index, 755b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getConstant(2, MVT::i32)); 756b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue JTAddress = DAG.getNode(ISD::ADD, dl, MVT::i32, JumpTableBase, 757b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ShiftIndex); 758b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue LoadTarget = DAG.getLoad(MVT::i32, dl, Chain, JTAddress, 759b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachinePointerInfo(), false, false, false, 760b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 0); 761b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::BR_JT, dl, MVT::Other, Chain, LoadTarget); 762b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 763b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 764b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 765b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 766b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerDYNAMIC_STACKALLOC(SDValue Op, 767b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG &DAG) const { 768b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Chain = Op.getOperand(0); 769b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Size = Op.getOperand(1); 770ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl(Op); 771b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 772b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned SPReg = getStackPointerRegisterToSaveRestore(); 773b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 774b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Get a reference to the stack pointer. 775b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue StackPointer = DAG.getCopyFromReg(Chain, dl, SPReg, MVT::i32); 776b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 777b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Subtract the dynamic size from the actual stack size to 778b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // obtain the new stack size. 779b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Sub = DAG.getNode(ISD::SUB, dl, MVT::i32, StackPointer, Size); 780b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 781b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 782b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // For Hexagon, the outgoing memory arguments area should be on top of the 783b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // alloca area on the stack i.e., the outgoing memory arguments should be 784b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // at a lower address than the alloca area. Move the alloca area down the 785b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // stack by adding back the space reserved for outgoing arguments to SP 786b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // here. 787b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 788b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // We do not know what the size of the outgoing args is at this point. 789b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // So, we add a pseudo instruction ADJDYNALLOC that will adjust the 790b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // stack pointer. We patch this instruction with the correct, known 791b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // offset in emitPrologue(). 792b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 793b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Use a placeholder immediate (zero) for now. This will be patched up 794b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // by emitPrologue(). 795b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue ArgAdjust = DAG.getNode(HexagonISD::ADJDYNALLOC, dl, 796b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MVT::i32, 797b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Sub, 798b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getConstant(0, MVT::i32)); 799b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 800b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // The Sub result contains the new stack start address, so it 801b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // must be placed in the stack pointer register. 802b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue CopyChain = DAG.getCopyToReg(Chain, dl, 803b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum TM.getRegisterInfo()->getStackRegister(), 804b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Sub); 805b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 806b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Ops[2] = { ArgAdjust, CopyChain }; 807b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getMergeValues(Ops, 2, dl); 808b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 809b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 810b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 811b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerFormalArguments(SDValue Chain, 812b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CallingConv::ID CallConv, 813b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isVarArg, 814b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const 815b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVectorImpl<ISD::InputArg> &Ins, 816ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl, SelectionDAG &DAG, 817b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVectorImpl<SDValue> &InVals) 818b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumconst { 819b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 820b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFunction &MF = DAG.getMachineFunction(); 821b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFrameInfo *MFI = MF.getFrameInfo(); 822b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineRegisterInfo &RegInfo = MF.getRegInfo(); 823b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum HexagonMachineFunctionInfo *FuncInfo = 824b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MF.getInfo<HexagonMachineFunctionInfo>(); 825b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 826b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 827b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Assign locations to all of the incoming arguments. 828b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<CCValAssign, 16> ArgLocs; 829b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(), 83056cb2298663017eb77aa4f4dda8db7ecd1b58173Bill Wendling getTargetMachine(), ArgLocs, *DAG.getContext()); 831b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 832b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCInfo.AnalyzeFormalArguments(Ins, CC_Hexagon); 833b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 834b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // For LLVM, in the case when returning a struct by value (>8byte), 835b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // the first argument is a pointer that points to the location on caller's 836b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // stack where the return value will be stored. For Hexagon, the location on 837b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // caller's stack is passed only when the struct size is smaller than (and 838b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // equal to) 8 bytes. If not, no address will be passed into callee and 839b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // callee return the result direclty through R0/R1. 840b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 841b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SmallVector<SDValue, 4> MemOps; 842b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 843b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) { 844b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCValAssign &VA = ArgLocs[i]; 845b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ISD::ArgFlagsTy Flags = Ins[i].Flags; 846b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned ObjSize; 847b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned StackLocation; 848b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int FI; 849b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 850b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if ( (VA.isRegLoc() && !Flags.isByVal()) 851b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum || (VA.isRegLoc() && Flags.isByVal() && Flags.getByValSize() > 8)) { 852b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Arguments passed in registers 853b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 1. int, long long, ptr args that get allocated in register. 854b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 2. Large struct that gets an register to put its address in. 855b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT RegVT = VA.getLocVT(); 8567517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (RegVT == MVT::i8 || RegVT == MVT::i16 || 8577517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande RegVT == MVT::i32 || RegVT == MVT::f32) { 858b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned VReg = 859420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper RegInfo.createVirtualRegister(&Hexagon::IntRegsRegClass); 860b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RegInfo.addLiveIn(VA.getLocReg(), VReg); 861b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InVals.push_back(DAG.getCopyFromReg(Chain, dl, VReg, RegVT)); 86237097623bbde5420f81ab8d1d056700f8f258025Chandler Carruth } else if (RegVT == MVT::i64) { 863b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned VReg = 864420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper RegInfo.createVirtualRegister(&Hexagon::DoubleRegsRegClass); 865b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum RegInfo.addLiveIn(VA.getLocReg(), VReg); 866b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InVals.push_back(DAG.getCopyFromReg(Chain, dl, VReg, RegVT)); 867b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 868b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum assert (0); 869b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 870b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else if (VA.isRegLoc() && Flags.isByVal() && Flags.getByValSize() <= 8) { 871b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum assert (0 && "ByValSize must be bigger than 8 bytes"); 872b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 873b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Sanity check. 874b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum assert(VA.isMemLoc()); 875b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 876b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Flags.isByVal()) { 877b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // If it's a byval parameter, then we need to compute the 878b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // "real" size, not the size of the pointer. 879b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ObjSize = Flags.getByValSize(); 880b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 881b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum ObjSize = VA.getLocVT().getStoreSizeInBits() >> 3; 882b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 883b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 884b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum StackLocation = HEXAGON_LRFP_SIZE + VA.getLocMemOffset(); 885b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Create the frame index object for this incoming parameter... 886b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum FI = MFI->CreateFixedObject(ObjSize, StackLocation, true); 887b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 888b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Create the SelectionDAG nodes cordl, responding to a load 889b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // from this parameter. 890b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue FIN = DAG.getFrameIndex(FI, MVT::i32); 891b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 892b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Flags.isByVal()) { 893b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // If it's a pass-by-value aggregate, then do not dereference the stack 894b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // location. Instead, we should generate a reference to the stack 895b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // location. 896b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InVals.push_back(FIN); 897b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 898b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum InVals.push_back(DAG.getLoad(VA.getLocVT(), dl, Chain, FIN, 899b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachinePointerInfo(), false, false, 900b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum false, 0)); 901b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 902b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 903b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 904b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 905b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!MemOps.empty()) 906b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, &MemOps[0], 907b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MemOps.size()); 908b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 909b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isVarArg) { 910b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // This will point to the next argument passed via stack. 911b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int FrameIndex = MFI->CreateFixedObject(Hexagon_PointerSize, 912b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum HEXAGON_LRFP_SIZE + 913b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CCInfo.getNextStackOffset(), 914b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum true); 915b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum FuncInfo->setVarArgsFrameIndex(FrameIndex); 916b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 917b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 918b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return Chain; 919b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 920b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 921b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 922b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerVASTART(SDValue Op, SelectionDAG &DAG) const { 923b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // VASTART stores the address of the VarArgsFrameIndex slot into the 924b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // memory location argument. 925b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFunction &MF = DAG.getMachineFunction(); 926b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum HexagonMachineFunctionInfo *QFI = MF.getInfo<HexagonMachineFunctionInfo>(); 927b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Addr = DAG.getFrameIndex(QFI->getVarArgsFrameIndex(), MVT::i32); 928b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const Value *SV = cast<SrcValueSDNode>(Op.getOperand(2))->getValue(); 929ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick return DAG.getStore(Op.getOperand(0), SDLoc(Op), Addr, 930b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Op.getOperand(1), MachinePointerInfo(SV), false, 931b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum false, 0); 932b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 933b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 934b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 935b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const { 9367517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue LHS = Op.getOperand(0); 9377517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue RHS = Op.getOperand(1); 9387517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue CC = Op.getOperand(4); 9397517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue TrueVal = Op.getOperand(2); 9407517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue FalseVal = Op.getOperand(3); 941ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl(Op); 942b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDNode* OpNode = Op.getNode(); 9437517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande EVT SVT = OpNode->getValueType(0); 9447517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 9457517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue Cond = DAG.getNode(ISD::SETCC, dl, MVT::i1, LHS, RHS, CC); 9467517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande return DAG.getNode(ISD::SELECT, dl, SVT, Cond, TrueVal, FalseVal); 9477517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande} 9487517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 9497517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish PandeSDValue 9507517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish PandeHexagonTargetLowering::LowerConstantPool(SDValue Op, SelectionDAG &DAG) const { 9517517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande EVT ValTy = Op.getValueType(); 952ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl(Op); 9537517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande ConstantPoolSDNode *CP = cast<ConstantPoolSDNode>(Op); 9547517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande SDValue Res; 9557517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (CP->isMachineConstantPoolEntry()) 9567517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande Res = DAG.getTargetConstantPool(CP->getMachineCPVal(), ValTy, 9577517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande CP->getAlignment()); 9587517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande else 9597517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande Res = DAG.getTargetConstantPool(CP->getConstVal(), ValTy, 9607517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande CP->getAlignment()); 9617517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande return DAG.getNode(HexagonISD::CONST32, dl, ValTy, Res); 962b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 963b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 964b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 965b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const { 966b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const TargetRegisterInfo *TRI = TM.getRegisterInfo(); 967b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFunction &MF = DAG.getMachineFunction(); 968b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFrameInfo *MFI = MF.getFrameInfo(); 969b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MFI->setReturnAddressIsTaken(true); 970b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 971b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT VT = Op.getValueType(); 972ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl(Op); 973b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Depth = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue(); 974b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Depth) { 975b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue FrameAddr = LowerFRAMEADDR(Op, DAG); 976b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Offset = DAG.getConstant(4, MVT::i32); 977b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getLoad(VT, dl, DAG.getEntryNode(), 978b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum DAG.getNode(ISD::ADD, dl, VT, FrameAddr, Offset), 979b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachinePointerInfo(), false, false, false, 0); 980b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 981b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 982b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Return LR, which contains the return address. Mark it an implicit live-in. 983b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Reg = MF.addLiveIn(TRI->getRARegister(), getRegClassFor(MVT::i32)); 984b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getCopyFromReg(DAG.getEntryNode(), dl, Reg, VT); 985b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 986b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 987b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 988b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const { 989b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const HexagonRegisterInfo *TRI = TM.getRegisterInfo(); 990b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo(); 991b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MFI->setFrameAddressIsTaken(true); 992b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 993b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT VT = Op.getValueType(); 994ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl(Op); 995b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned Depth = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue(); 996b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue FrameAddr = DAG.getCopyFromReg(DAG.getEntryNode(), dl, 997b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum TRI->getFrameRegister(), VT); 998b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum while (Depth--) 999b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum FrameAddr = DAG.getLoad(VT, dl, DAG.getEntryNode(), FrameAddr, 1000b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachinePointerInfo(), 1001b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum false, false, false, 0); 1002b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return FrameAddr; 1003b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1004b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1005b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue HexagonTargetLowering::LowerATOMIC_FENCE(SDValue Op, 1006b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG& DAG) const { 1007ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl(Op); 1008b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::BARRIER, dl, MVT::Other, Op.getOperand(0)); 1009b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1010b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1011b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1012b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue HexagonTargetLowering::LowerGLOBALADDRESS(SDValue Op, 1013b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG &DAG) const { 1014b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Result; 1015b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal(); 1016b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int64_t Offset = cast<GlobalAddressSDNode>(Op)->getOffset(); 1017ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl(Op); 1018b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Result = DAG.getTargetGlobalAddress(GV, dl, getPointerTy(), Offset); 1019b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1020510db8bcb959fa69a93c42b58cb3e0ab28d03825Dmitri Gribenko const HexagonTargetObjectFile &TLOF = 1021510db8bcb959fa69a93c42b58cb3e0ab28d03825Dmitri Gribenko static_cast<const HexagonTargetObjectFile &>(getObjFileLowering()); 1022b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (TLOF.IsGlobalInSmallSection(GV, getTargetMachine())) { 1023b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::CONST32_GP, dl, getPointerTy(), Result); 1024b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1025b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1026b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return DAG.getNode(HexagonISD::CONST32, dl, getPointerTy(), Result); 1027b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1028b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1029b6716187ca8cc33817fb7446d9d9bdcb708c3f35Jyotsna VermaSDValue 1030b6716187ca8cc33817fb7446d9d9bdcb708c3f35Jyotsna VermaHexagonTargetLowering::LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const { 1031b6716187ca8cc33817fb7446d9d9bdcb708c3f35Jyotsna Verma const BlockAddress *BA = cast<BlockAddressSDNode>(Op)->getBlockAddress(); 1032b6716187ca8cc33817fb7446d9d9bdcb708c3f35Jyotsna Verma SDValue BA_SD = DAG.getTargetBlockAddress(BA, MVT::i32); 1033ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl(Op); 1034b6716187ca8cc33817fb7446d9d9bdcb708c3f35Jyotsna Verma return DAG.getNode(HexagonISD::CONST32_GP, dl, getPointerTy(), BA_SD); 1035b6716187ca8cc33817fb7446d9d9bdcb708c3f35Jyotsna Verma} 1036b6716187ca8cc33817fb7446d9d9bdcb708c3f35Jyotsna Verma 1037b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 1038b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// TargetLowering Implementation 1039b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 1040b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1041b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::HexagonTargetLowering(HexagonTargetMachine 1042b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum &targetmachine) 1043b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum : TargetLowering(targetmachine, new HexagonTargetObjectFile()), 1044b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum TM(targetmachine) { 1045b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 10467517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande const HexagonRegisterInfo* QRI = TM.getRegisterInfo(); 10477517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 1048b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Set up the register classes. 1049420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper addRegisterClass(MVT::i32, &Hexagon::IntRegsRegClass); 1050420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper addRegisterClass(MVT::i64, &Hexagon::DoubleRegsRegClass); 1051b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 10527517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (QRI->Subtarget.hasV5TOps()) { 10537517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande addRegisterClass(MVT::f32, &Hexagon::IntRegsRegClass); 10547517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande addRegisterClass(MVT::f64, &Hexagon::DoubleRegsRegClass); 10557517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande } 10567517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 1057420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper addRegisterClass(MVT::i1, &Hexagon::PredRegsRegClass); 1058b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1059b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum computeRegisterProperties(); 1060b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1061b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Align loop entry 1062b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setPrefLoopAlignment(4); 1063b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1064b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Limits for inline expansion of memcpy/memmove 10653450f800aa65c91f0496816ba6061a422a74c1feJim Grosbach MaxStoresPerMemcpy = 6; 10663450f800aa65c91f0496816ba6061a422a74c1feJim Grosbach MaxStoresPerMemmove = 6; 1067b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1068b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 1069b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Library calls for unsupported operations 1070b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // 1071b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1072b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::SINTTOFP_I128_F64, "__hexagon_floattidf"); 1073b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::SINTTOFP_I128_F32, "__hexagon_floattisf"); 1074b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1075b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::FPTOUINT_F32_I128, "__hexagon_fixunssfti"); 1076b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::FPTOUINT_F64_I128, "__hexagon_fixunsdfti"); 1077b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1078b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::FPTOSINT_F32_I128, "__hexagon_fixsfti"); 1079b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::FPTOSINT_F64_I128, "__hexagon_fixdfti"); 1080b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1081b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::SDIV_I32, "__hexagon_divsi3"); 1082b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SDIV, MVT::i32, Expand); 1083b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::SREM_I32, "__hexagon_umodsi3"); 1084b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SREM, MVT::i32, Expand); 1085b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1086b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::SDIV_I64, "__hexagon_divdi3"); 1087b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SDIV, MVT::i64, Expand); 1088b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::SREM_I64, "__hexagon_moddi3"); 1089b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SREM, MVT::i64, Expand); 1090b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1091b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::UDIV_I32, "__hexagon_udivsi3"); 1092b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UDIV, MVT::i32, Expand); 1093b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1094b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::UDIV_I64, "__hexagon_udivdi3"); 1095b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UDIV, MVT::i64, Expand); 1096b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1097b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::UREM_I32, "__hexagon_umodsi3"); 1098b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UREM, MVT::i32, Expand); 1099b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1100b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::UREM_I64, "__hexagon_umoddi3"); 1101b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UREM, MVT::i64, Expand); 1102b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1103b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::DIV_F32, "__hexagon_divsf3"); 1104b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FDIV, MVT::f32, Expand); 1105b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1106b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLibcallName(RTLIB::DIV_F64, "__hexagon_divdf3"); 1107b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FDIV, MVT::f64, Expand); 1108b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 11097517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FSQRT, MVT::f32, Expand); 11107517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FSQRT, MVT::f64, Expand); 11117517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FSIN, MVT::f32, Expand); 11127517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FSIN, MVT::f64, Expand); 11137517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11147517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (QRI->Subtarget.hasV5TOps()) { 11157517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // Hexagon V5 Support. 11167517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FADD, MVT::f32, Legal); 11177517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FADD, MVT::f64, Legal); 11187517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_EXTEND, MVT::f32, Legal); 11197517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOEQ, MVT::f32, Legal); 11207517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOEQ, MVT::f64, Legal); 11217517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUEQ, MVT::f32, Legal); 11227517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUEQ, MVT::f64, Legal); 11237517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11247517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGE, MVT::f32, Legal); 11257517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGE, MVT::f64, Legal); 11267517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUGE, MVT::f32, Legal); 11277517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUGE, MVT::f64, Legal); 11287517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11297517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGT, MVT::f32, Legal); 11307517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGT, MVT::f64, Legal); 11317517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUGT, MVT::f32, Legal); 11327517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUGT, MVT::f64, Legal); 11337517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11347517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLE, MVT::f32, Legal); 11357517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLE, MVT::f64, Legal); 11367517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLT, MVT::f32, Legal); 11377517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLT, MVT::f64, Legal); 11387517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11397517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::ConstantFP, MVT::f32, Legal); 11407517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::ConstantFP, MVT::f64, Legal); 11417517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11427517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_UINT, MVT::i1, Promote); 11437517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::i1, Promote); 11447517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::UINT_TO_FP, MVT::i1, Promote); 11457517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SINT_TO_FP, MVT::i1, Promote); 11467517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11477517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_UINT, MVT::i8, Promote); 11487517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::i8, Promote); 11497517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::UINT_TO_FP, MVT::i8, Promote); 11507517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SINT_TO_FP, MVT::i8, Promote); 11517517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11527517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_UINT, MVT::i16, Promote); 11537517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::i16, Promote); 11547517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::UINT_TO_FP, MVT::i16, Promote); 11557517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SINT_TO_FP, MVT::i16, Promote); 11567517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11577517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_UINT, MVT::i32, Legal); 11587517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::i32, Legal); 11597517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::UINT_TO_FP, MVT::i32, Legal); 11607517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SINT_TO_FP, MVT::i32, Legal); 11617517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11627517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_UINT, MVT::i64, Legal); 11637517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::i64, Legal); 11647517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::UINT_TO_FP, MVT::i64, Legal); 11657517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SINT_TO_FP, MVT::i64, Legal); 11667517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11677517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FABS, MVT::f32, Legal); 11687517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FABS, MVT::f64, Expand); 11697517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 11707517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FNEG, MVT::f32, Legal); 11717517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FNEG, MVT::f64, Expand); 11727517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande } else { 1173b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 11747517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // Expand fp<->uint. 11757517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::i32, Expand); 11767517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_UINT, MVT::i32, Expand); 1177b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 11787517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SINT_TO_FP, MVT::i32, Expand); 11797517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::UINT_TO_FP, MVT::i32, Expand); 1180b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 11817517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SINTTOFP_I64_F32, "__hexagon_floatdisf"); 11827517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UINTTOFP_I64_F32, "__hexagon_floatundisf"); 118387eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 11847517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UINTTOFP_I32_F32, "__hexagon_floatunsisf"); 11857517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SINTTOFP_I32_F32, "__hexagon_floatsisf"); 118687eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 11877517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SINTTOFP_I64_F64, "__hexagon_floatdidf"); 11887517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UINTTOFP_I64_F64, "__hexagon_floatundidf"); 118987eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 11907517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UINTTOFP_I32_F64, "__hexagon_floatunsidf"); 11917517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SINTTOFP_I32_F64, "__hexagon_floatsidf"); 119287eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 11937517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOUINT_F32_I32, "__hexagon_fixunssfsi"); 11947517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOUINT_F32_I64, "__hexagon_fixunssfdi"); 1195b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 11967517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOSINT_F64_I64, "__hexagon_fixdfdi"); 11977517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOSINT_F32_I64, "__hexagon_fixsfdi"); 1198b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 11997517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOUINT_F64_I32, "__hexagon_fixunsdfsi"); 12007517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOUINT_F64_I64, "__hexagon_fixunsdfdi"); 120115e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 12027517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::ADD_F64, "__hexagon_adddf3"); 12037517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FADD, MVT::f64, Expand); 120415e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 12057517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::ADD_F32, "__hexagon_addsf3"); 12067517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FADD, MVT::f32, Expand); 120715e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 12087517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPEXT_F32_F64, "__hexagon_extendsfdf2"); 12097517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_EXTEND, MVT::f32, Expand); 121015e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 12117517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OEQ_F32, "__hexagon_eqsf2"); 12127517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOEQ, MVT::f32, Expand); 121315e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 12147517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OEQ_F64, "__hexagon_eqdf2"); 12157517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOEQ, MVT::f64, Expand); 1216b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12177517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OGE_F32, "__hexagon_gesf2"); 12187517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGE, MVT::f32, Expand); 1219b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12207517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OGE_F64, "__hexagon_gedf2"); 12217517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGE, MVT::f64, Expand); 12227517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12237517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OGT_F32, "__hexagon_gtsf2"); 12247517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGT, MVT::f32, Expand); 12257517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12267517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OGT_F64, "__hexagon_gtdf2"); 12277517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOGT, MVT::f64, Expand); 12287517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12297517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOSINT_F64_I32, "__hexagon_fixdfsi"); 12307517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::f64, Expand); 12317517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12327517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPTOSINT_F32_I32, "__hexagon_fixsfsi"); 12337517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_TO_SINT, MVT::f32, Expand); 12347517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12357517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OLE_F64, "__hexagon_ledf2"); 12367517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLE, MVT::f64, Expand); 1237b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12387517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OLE_F32, "__hexagon_lesf2"); 12397517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLE, MVT::f32, Expand); 1240b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12417517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OLT_F64, "__hexagon_ltdf2"); 12427517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLT, MVT::f64, Expand); 1243b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12447517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::OLT_F32, "__hexagon_ltsf2"); 12457517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETOLT, MVT::f32, Expand); 1246b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12477517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::MUL_F64, "__hexagon_muldf3"); 12487517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FMUL, MVT::f64, Expand); 1249b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12507517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::MUL_F32, "__hexagon_mulsf3"); 12517517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::MUL, MVT::f32, Expand); 1252b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12537517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UNE_F64, "__hexagon_nedf2"); 12547517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUNE, MVT::f64, Expand); 1255b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 12567517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UNE_F32, "__hexagon_nesf2"); 125787eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 12587517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SUB_F64, "__hexagon_subdf3"); 12597517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SUB, MVT::f64, Expand); 126087eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 12617517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SUB_F32, "__hexagon_subsf3"); 12627517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SUB, MVT::f32, Expand); 126387eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 12647517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::FPROUND_F64_F32, "__hexagon_truncdfsf2"); 12657517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FP_ROUND, MVT::f64, Expand); 126687eb92d913c2e3cdeb08b0a22250cd6c3214a3ffSirish Pande 12677517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UO_F64, "__hexagon_unorddf2"); 12687517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUO, MVT::f64, Expand); 126915e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 12707517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::O_F64, "__hexagon_unorddf2"); 12717517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETO, MVT::f64, Expand); 127215e56ad8855ff2d135a79efa71b540852acf3b97Sirish Pande 12737517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::O_F32, "__hexagon_unordsf2"); 12747517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETO, MVT::f32, Expand); 12757517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12767517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::UO_F32, "__hexagon_unordsf2"); 12777517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setCondCodeAction(ISD::SETUO, MVT::f32, Expand); 12787517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12797517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FABS, MVT::f32, Expand); 12807517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FABS, MVT::f64, Expand); 12817517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FNEG, MVT::f32, Expand); 12827517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::FNEG, MVT::f64, Expand); 12837517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande } 12847517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 12857517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setLibcallName(RTLIB::SREM_I32, "__hexagon_modsi3"); 12867517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SREM, MVT::i32, Expand); 1287b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1288b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedLoadAction(ISD::POST_INC, MVT::i8, Legal); 1289b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedLoadAction(ISD::POST_INC, MVT::i16, Legal); 1290b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedLoadAction(ISD::POST_INC, MVT::i32, Legal); 1291b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedLoadAction(ISD::POST_INC, MVT::i64, Legal); 1292b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1293b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedStoreAction(ISD::POST_INC, MVT::i8, Legal); 1294b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedStoreAction(ISD::POST_INC, MVT::i16, Legal); 1295b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedStoreAction(ISD::POST_INC, MVT::i32, Legal); 1296b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setIndexedStoreAction(ISD::POST_INC, MVT::i64, Legal); 1297b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1298b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BUILD_PAIR, MVT::i64, Expand); 1299b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1300b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Turn FP extload into load/fextend. 1301b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLoadExtAction(ISD::EXTLOAD, MVT::f32, Expand); 1302b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Hexagon has a i1 sign extending load. 1303b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setLoadExtAction(ISD::SEXTLOAD, MVT::i1, Expand); 1304b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Turn FP truncstore into trunc + store. 1305b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setTruncStoreAction(MVT::f64, MVT::f32, Expand); 1306b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1307b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Custom legalize GlobalAddress nodes into CONST32. 1308b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::GlobalAddress, MVT::i32, Custom); 1309b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::GlobalAddress, MVT::i8, Custom); 1310b6716187ca8cc33817fb7446d9d9bdcb708c3f35Jyotsna Verma setOperationAction(ISD::BlockAddress, MVT::i32, Custom); 1311b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Truncate action? 1312b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::TRUNCATE, MVT::i64, Expand); 1313b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1314b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Hexagon doesn't have sext_inreg, replace them with shl/sra. 1315b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1 , Expand); 1316b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1317b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Hexagon has no REM or DIVREM operations. 1318b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UREM, MVT::i32, Expand); 1319b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SREM, MVT::i32, Expand); 1320b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SDIVREM, MVT::i32, Expand); 1321b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UDIVREM, MVT::i32, Expand); 1322b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SREM, MVT::i64, Expand); 1323b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SDIVREM, MVT::i64, Expand); 1324b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UDIVREM, MVT::i64, Expand); 1325b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1326b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BSWAP, MVT::i64, Expand); 1327b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1328b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Lower SELECT_CC to SETCC and SELECT. 1329b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SELECT_CC, MVT::i32, Custom); 1330b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SELECT_CC, MVT::i64, Custom); 13317517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13327517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande if (QRI->Subtarget.hasV5TOps()) { 13337517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13347517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // We need to make the operation type of SELECT node to be Custom, 13357517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // such that we don't go into the infinite loop of 13367517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // select -> setcc -> select_cc -> select loop. 13377517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT, MVT::f32, Custom); 13387517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT, MVT::f64, Custom); 13397517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13407517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT_CC, MVT::f32, Expand); 13417517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT_CC, MVT::f64, Expand); 13427517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT_CC, MVT::Other, Expand); 13437517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13447517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande } else { 13457517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13467517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // Hexagon has no select or setcc: expand to SELECT_CC. 13477517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT, MVT::f32, Expand); 13487517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT, MVT::f64, Expand); 13497517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13507517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // This is a workaround documented in DAGCombiner.cpp:2892 We don't 13517517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande // support SELECT_CC on every type. 13527517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande setOperationAction(ISD::SELECT_CC, MVT::Other, Expand); 13537517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 13547517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande } 1355b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1356b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (EmitJumpTables) { 1357b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BR_JT, MVT::Other, Custom); 1358b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 1359b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BR_JT, MVT::Other, Expand); 1360b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 13611a37d7e807ad6cc71fe3cffdf6674644c46a60ebSebastian Pop // Increase jump tables cutover to 5, was 4. 13621a37d7e807ad6cc71fe3cffdf6674644c46a60ebSebastian Pop setMinimumJumpTableEntries(5); 1363b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 13643ef5383b3537a420c5e2ab3e657c378e5185549dTom Stellard setOperationAction(ISD::BR_CC, MVT::f32, Expand); 13653ef5383b3537a420c5e2ab3e657c378e5185549dTom Stellard setOperationAction(ISD::BR_CC, MVT::f64, Expand); 13663ef5383b3537a420c5e2ab3e657c378e5185549dTom Stellard setOperationAction(ISD::BR_CC, MVT::i1, Expand); 1367b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BR_CC, MVT::i32, Expand); 13680e58d92628486aee7e4745d451c37a9b409adf7aJyotsna Verma setOperationAction(ISD::BR_CC, MVT::i64, Expand); 1369b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1370b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::ATOMIC_FENCE, MVT::Other, Custom); 1371b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1372b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FSIN , MVT::f64, Expand); 1373b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FCOS , MVT::f64, Expand); 1374b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FREM , MVT::f64, Expand); 1375b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FSIN , MVT::f32, Expand); 1376b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FCOS , MVT::f32, Expand); 1377b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FREM , MVT::f32, Expand); 13788688a58c53b46d2dda9bf50dafd5195790a7ed58Evan Cheng setOperationAction(ISD::FSINCOS, MVT::f64, Expand); 13798688a58c53b46d2dda9bf50dafd5195790a7ed58Evan Cheng setOperationAction(ISD::FSINCOS, MVT::f32, Expand); 138018daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma 138118daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma // In V4, we have double word add/sub with carry. The problem with 138218daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma // modelling this instruction is that it produces 2 results - Rdd and Px. 138318daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma // To model update of Px, we will have to use Defs[p0..p3] which will 138418daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma // cause any predicate live range to spill. So, we pretend we dont't 138518daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma // have these instructions. 138618daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::ADDE, MVT::i8, Expand); 138718daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::ADDE, MVT::i16, Expand); 138818daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::ADDE, MVT::i32, Expand); 138918daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::ADDE, MVT::i64, Expand); 139018daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::SUBE, MVT::i8, Expand); 139118daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::SUBE, MVT::i16, Expand); 139218daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::SUBE, MVT::i32, Expand); 139318daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::SUBE, MVT::i64, Expand); 139418daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::ADDC, MVT::i8, Expand); 139518daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::ADDC, MVT::i16, Expand); 139618daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::ADDC, MVT::i32, Expand); 139718daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::ADDC, MVT::i64, Expand); 139818daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::SUBC, MVT::i8, Expand); 139918daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::SUBC, MVT::i16, Expand); 140018daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::SUBC, MVT::i32, Expand); 140118daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma setOperationAction(ISD::SUBC, MVT::i64, Expand); 140218daead3ff41902a61ff3344cfa77ac8aba5586dJyotsna Verma 1403b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::CTPOP, MVT::i32, Expand); 14046585d3b64b04b788faad79ba6cf4e592ebf4658dAnshuman Dasgupta setOperationAction(ISD::CTPOP, MVT::i64, Expand); 1405b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::CTTZ , MVT::i32, Expand); 14066585d3b64b04b788faad79ba6cf4e592ebf4658dAnshuman Dasgupta setOperationAction(ISD::CTTZ , MVT::i64, Expand); 140763974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::i32, Expand); 14086585d3b64b04b788faad79ba6cf4e592ebf4658dAnshuman Dasgupta setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::i64, Expand); 1409b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::CTLZ , MVT::i32, Expand); 14106585d3b64b04b788faad79ba6cf4e592ebf4658dAnshuman Dasgupta setOperationAction(ISD::CTLZ , MVT::i64, Expand); 141163974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth setOperationAction(ISD::CTLZ_ZERO_UNDEF, MVT::i32, Expand); 14126585d3b64b04b788faad79ba6cf4e592ebf4658dAnshuman Dasgupta setOperationAction(ISD::CTLZ_ZERO_UNDEF, MVT::i64, Expand); 1413b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::ROTL , MVT::i32, Expand); 1414b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::ROTR , MVT::i32, Expand); 1415b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::BSWAP, MVT::i32, Expand); 1416b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FCOPYSIGN, MVT::f64, Expand); 1417b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FCOPYSIGN, MVT::f32, Expand); 1418b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FPOW , MVT::f64, Expand); 1419b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::FPOW , MVT::f32, Expand); 1420b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1421b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SHL_PARTS, MVT::i32, Expand); 1422b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SRA_PARTS, MVT::i32, Expand); 1423b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SRL_PARTS, MVT::i32, Expand); 1424b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1425b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UMUL_LOHI, MVT::i32, Expand); 1426b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SMUL_LOHI, MVT::i32, Expand); 1427b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1428b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::SMUL_LOHI, MVT::i64, Expand); 1429b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::UMUL_LOHI, MVT::i64, Expand); 1430b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 14316ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma setOperationAction(ISD::EH_RETURN, MVT::Other, Custom); 1432b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1433b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (TM.getSubtargetImpl()->isSubtargetV2()) { 1434b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setExceptionPointerRegister(Hexagon::R20); 1435b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setExceptionSelectorRegister(Hexagon::R21); 1436b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } else { 1437b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setExceptionPointerRegister(Hexagon::R0); 1438b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setExceptionSelectorRegister(Hexagon::R1); 1439b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1440b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1441b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // VASTART needs to be custom lowered to use the VarArgsFrameIndex. 1442b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::VASTART , MVT::Other, Custom); 1443b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1444b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Use the default implementation. 1445b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::VAARG , MVT::Other, Expand); 1446b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::VACOPY , MVT::Other, Expand); 1447b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::VAEND , MVT::Other, Expand); 1448b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::STACKSAVE , MVT::Other, Expand); 1449b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::STACKRESTORE , MVT::Other, Expand); 1450b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1451b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1452b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32 , Custom); 1453b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setOperationAction(ISD::INLINEASM , MVT::Other, Custom); 1454b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1455b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setMinFunctionAlignment(2); 1456b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1457b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Needed for DYNAMIC_STACKALLOC expansion. 1458b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum unsigned StackRegister = TM.getRegisterInfo()->getStackRegister(); 1459b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum setStackPointerRegisterToSaveRestore(StackRegister); 1460ee498d3254b86bceb4f441741e9f442990647ce6Andrew Trick setSchedulingPreference(Sched::VLIW); 1461b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1462b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1463b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1464b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumconst char* 1465b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::getTargetNodeName(unsigned Opcode) const { 1466b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (Opcode) { 1467b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum default: return 0; 14687517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::CONST32: return "HexagonISD::CONST32"; 1469b6716187ca8cc33817fb7446d9d9bdcb708c3f35Jyotsna Verma case HexagonISD::CONST32_GP: return "HexagonISD::CONST32_GP"; 1470b6716187ca8cc33817fb7446d9d9bdcb708c3f35Jyotsna Verma case HexagonISD::CONST32_Int_Real: return "HexagonISD::CONST32_Int_Real"; 1471b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case HexagonISD::ADJDYNALLOC: return "HexagonISD::ADJDYNALLOC"; 14727517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::CMPICC: return "HexagonISD::CMPICC"; 14737517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::CMPFCC: return "HexagonISD::CMPFCC"; 14747517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::BRICC: return "HexagonISD::BRICC"; 14757517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::BRFCC: return "HexagonISD::BRFCC"; 14767517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::SELECT_ICC: return "HexagonISD::SELECT_ICC"; 14777517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::SELECT_FCC: return "HexagonISD::SELECT_FCC"; 14787517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::Hi: return "HexagonISD::Hi"; 14797517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::Lo: return "HexagonISD::Lo"; 14807517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::FTOI: return "HexagonISD::FTOI"; 14817517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::ITOF: return "HexagonISD::ITOF"; 14827517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::CALL: return "HexagonISD::CALL"; 14837517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::RET_FLAG: return "HexagonISD::RET_FLAG"; 14847517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::BR_JT: return "HexagonISD::BR_JT"; 14857517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case HexagonISD::TC_RETURN: return "HexagonISD::TC_RETURN"; 14866ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma case HexagonISD::EH_RETURN: return "HexagonISD::EH_RETURN"; 1487b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1488b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1489b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1490b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumbool 1491b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::isTruncateFree(Type *Ty1, Type *Ty2) const { 1492b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT MTy1 = EVT::getEVT(Ty1); 1493b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum EVT MTy2 = EVT::getEVT(Ty2); 1494b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!MTy1.isSimple() || !MTy2.isSimple()) { 1495b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1496b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1497b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return ((MTy1.getSimpleVT() == MVT::i64) && (MTy2.getSimpleVT() == MVT::i32)); 1498b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1499b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1500b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumbool HexagonTargetLowering::isTruncateFree(EVT VT1, EVT VT2) const { 1501b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!VT1.isSimple() || !VT2.isSimple()) { 1502b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1503b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1504b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return ((VT1.getSimpleVT() == MVT::i64) && (VT2.getSimpleVT() == MVT::i32)); 1505b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1506b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1507d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim Northoverbool 1508d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim NorthoverHexagonTargetLowering::allowTruncateForTailCall(Type *Ty1, Type *Ty2) const { 1509d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim Northover // Assuming the caller does not have either a signext or zeroext modifier, and 1510d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim Northover // only one value is accepted, any reasonable truncation is allowed. 1511d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim Northover if (!Ty1->isIntegerTy() || !Ty2->isIntegerTy()) 1512d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim Northover return false; 1513d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim Northover 1514d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim Northover // FIXME: in principle up to 64-bit could be made safe, but it would be very 1515d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim Northover // fragile at the moment: any support for multiple value returns would be 1516d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim Northover // liable to disallow tail calls involving i64 -> iN truncation in many cases. 1517d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim Northover return Ty1->getPrimitiveSizeInBits() <= 32; 1518d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim Northover} 1519d113448c1dd5f40522c3c02db96e87a9eb59eaf4Tim Northover 1520b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumSDValue 15216ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna VermaHexagonTargetLowering::LowerEH_RETURN(SDValue Op, SelectionDAG &DAG) const { 15226ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma SDValue Chain = Op.getOperand(0); 15236ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma SDValue Offset = Op.getOperand(1); 15246ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma SDValue Handler = Op.getOperand(2); 1525ac6d9bec671252dd1e596fa71180ff6b39d06b5dAndrew Trick SDLoc dl(Op); 15266ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma 15276ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma // Mark function as containing a call to EH_RETURN. 15286ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma HexagonMachineFunctionInfo *FuncInfo = 15296ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma DAG.getMachineFunction().getInfo<HexagonMachineFunctionInfo>(); 15306ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma FuncInfo->setHasEHReturn(); 15316ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma 15326ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma unsigned OffsetReg = Hexagon::R28; 15336ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma 15346ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma SDValue StoreAddr = DAG.getNode(ISD::ADD, dl, getPointerTy(), 15356ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma DAG.getRegister(Hexagon::R30, getPointerTy()), 15366ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma DAG.getIntPtrConstant(4)); 15376ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma Chain = DAG.getStore(Chain, dl, Handler, StoreAddr, MachinePointerInfo(), 15386ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma false, false, 0); 15396ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma Chain = DAG.getCopyToReg(Chain, dl, OffsetReg, Offset); 15406ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma 15416ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma // Not needed we already use it as explict input to EH_RETURN. 15426ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma // MF.getRegInfo().addLiveOut(OffsetReg); 15436ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma 15446ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma return DAG.getNode(HexagonISD::EH_RETURN, dl, MVT::Other, Chain); 15456ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma} 15466ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma 15476ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna VermaSDValue 1548b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const { 1549b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (Op.getOpcode()) { 1550bc2198133a1836598b54b943420748e75d5dea94Craig Topper default: llvm_unreachable("Should not custom lower this!"); 15517517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case ISD::ConstantPool: return LowerConstantPool(Op, DAG); 15526ea706e40e841c148bc47bcac4dcca5e0f0245ebJyotsna Verma case ISD::EH_RETURN: return LowerEH_RETURN(Op, DAG); 1553b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Frame & Return address. Currently unimplemented. 15547517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case ISD::RETURNADDR: return LowerRETURNADDR(Op, DAG); 15557517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case ISD::FRAMEADDR: return LowerFRAMEADDR(Op, DAG); 1556b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::GlobalTLSAddress: 1557bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("TLS not implemented for Hexagon."); 1558b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::ATOMIC_FENCE: return LowerATOMIC_FENCE(Op, DAG); 1559b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::GlobalAddress: return LowerGLOBALADDRESS(Op, DAG); 1560b6716187ca8cc33817fb7446d9d9bdcb708c3f35Jyotsna Verma case ISD::BlockAddress: return LowerBlockAddress(Op, DAG); 1561b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::VASTART: return LowerVASTART(Op, DAG); 1562b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::BR_JT: return LowerBR_JT(Op, DAG); 1563b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1564b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::DYNAMIC_STACKALLOC: return LowerDYNAMIC_STACKALLOC(Op, DAG); 15657517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case ISD::SELECT_CC: return LowerSELECT_CC(Op, DAG); 15667517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case ISD::SELECT: return Op; 1567b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case ISD::INTRINSIC_WO_CHAIN: return LowerINTRINSIC_WO_CHAIN(Op, DAG); 15687517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case ISD::INLINEASM: return LowerINLINEASM(Op, DAG); 1569b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1570b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1571b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1572b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1573b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1574b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1575b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 1576b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// Hexagon Scheduler Hooks 1577b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 1578b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumMachineBasicBlock * 1579b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI, 1580b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineBasicBlock *BB) 1581b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumconst { 1582b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (MI->getOpcode()) { 1583b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case Hexagon::ADJDYNALLOC: { 1584b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MachineFunction *MF = BB->getParent(); 1585b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum HexagonMachineFunctionInfo *FuncInfo = 1586b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum MF->getInfo<HexagonMachineFunctionInfo>(); 1587b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum FuncInfo->addAllocaAdjustInst(MI); 1588b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return BB; 1589b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1590bc2198133a1836598b54b943420748e75d5dea94Craig Topper default: llvm_unreachable("Unexpected instr type to insert"); 1591b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } // switch 1592b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1593b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1594b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 1595b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum// Inline Assembly Support 1596b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum//===----------------------------------------------------------------------===// 1597b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1598b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumstd::pair<unsigned, const TargetRegisterClass*> 1599b4b54153ad760c69a00a08531abef4ed434a5092Tony LinthicumHexagonTargetLowering::getRegForInlineAsmConstraint(const 1600b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum std::string &Constraint, 16015b3fca50a08865f0db55fc92ad1c037a04e12177Chad Rosier MVT VT) const { 1602b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Constraint.size() == 1) { 1603b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (Constraint[0]) { 1604b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case 'r': // R0-R31 16055b3fca50a08865f0db55fc92ad1c037a04e12177Chad Rosier switch (VT.SimpleTy) { 1606b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum default: 1607bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("getRegForInlineAsmConstraint Unhandled data type"); 1608b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case MVT::i32: 1609b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case MVT::i16: 1610b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case MVT::i8: 16117517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case MVT::f32: 1612420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper return std::make_pair(0U, &Hexagon::IntRegsRegClass); 1613b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case MVT::i64: 16147517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande case MVT::f64: 1615420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper return std::make_pair(0U, &Hexagon::DoubleRegsRegClass); 1616b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1617b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum default: 1618bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("Unknown asm register class"); 1619b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1620b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1621b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1622b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return TargetLowering::getRegForInlineAsmConstraint(Constraint, VT); 1623b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1624b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 16257517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande/// isFPImmLegal - Returns true if the target can instruction select the 16267517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande/// specified FP immediate natively. If false, the legalizer will 16277517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande/// materialize the FP immediate as a load from a constant pool. 16287517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pandebool HexagonTargetLowering::isFPImmLegal(const APFloat &Imm, EVT VT) const { 16297517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande const HexagonRegisterInfo* QRI = TM.getRegisterInfo(); 16307517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande return QRI->Subtarget.hasV5TOps(); 16317517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande} 16327517bbc91ae1c60d3c7df8b11642c7a5bb3d5a71Sirish Pande 1633b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// isLegalAddressingMode - Return true if the addressing mode represented by 1634b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// AM is legal for this target, for a load/store of the specified type. 1635b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumbool HexagonTargetLowering::isLegalAddressingMode(const AddrMode &AM, 1636b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum Type *Ty) const { 1637b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Allows a signed-extended 11-bit immediate field. 1638b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (AM.BaseOffs <= -(1LL << 13) || AM.BaseOffs >= (1LL << 13)-1) { 1639b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1640b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1641b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1642b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // No global is ever allowed as a base. 1643b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (AM.BaseGV) { 1644b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1645b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1646b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1647b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum int Scale = AM.Scale; 1648b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (Scale < 0) Scale = -Scale; 1649b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum switch (Scale) { 1650b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum case 0: // No scale reg, "r+i", "r", or just "i". 1651b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum break; 1652b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum default: // No scaled addressing mode. 1653b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1654b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1655b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return true; 1656b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1657b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1658b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// isLegalICmpImmediate - Return true if the specified immediate is legal 1659b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// icmp immediate, that is the target has icmp instructions which can compare 1660b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// a register against the immediate without having to materialize the 1661b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// immediate into a register. 1662b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumbool HexagonTargetLowering::isLegalICmpImmediate(int64_t Imm) const { 1663b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return Imm >= -512 && Imm <= 511; 1664b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1665b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1666b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// IsEligibleForTailCallOptimization - Check whether the call is eligible 1667b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// for tail call optimization. Targets which want to do tail call 1668b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum/// optimization should implement this function. 1669b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicumbool HexagonTargetLowering::IsEligibleForTailCallOptimization( 1670b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SDValue Callee, 1671b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CallingConv::ID CalleeCC, 1672b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isVarArg, 1673b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isCalleeStructRet, 1674b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool isCallerStructRet, 1675b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const SmallVectorImpl<ISD::OutputArg> &Outs, 1676b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const SmallVectorImpl<SDValue> &OutVals, 1677b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const SmallVectorImpl<ISD::InputArg> &Ins, 1678b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum SelectionDAG& DAG) const { 1679b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum const Function *CallerF = DAG.getMachineFunction().getFunction(); 1680b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum CallingConv::ID CallerCC = CallerF->getCallingConv(); 1681b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum bool CCMatch = CallerCC == CalleeCC; 1682b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1683b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // *************************************************************************** 1684b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Look for obvious safe cases to perform tail call optimization that do not 1685b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // require ABI changes. 1686b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // *************************************************************************** 1687b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1688b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // If this is a tail call via a function pointer, then don't do it! 1689b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!(dyn_cast<GlobalAddressSDNode>(Callee)) 1690b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum && !(dyn_cast<ExternalSymbolSDNode>(Callee))) { 1691b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1692b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum } 1693b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1694b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Do not optimize if the calling conventions do not match. 1695b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (!CCMatch) 1696b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1697b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1698b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Do not tail call optimize vararg calls. 1699b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isVarArg) 1700b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1701b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1702b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // Also avoid tail call optimization if either caller or callee uses struct 1703b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // return semantics. 1704b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum if (isCalleeStructRet || isCallerStructRet) 1705b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return false; 1706b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum 1707b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // In addition to the cases above, we also disable Tail Call Optimization if 1708b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // the calling convention code that at least one outgoing argument needs to 1709b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // go on the stack. We cannot check that here because at this point that 1710b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum // information is not available. 1711b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum return true; 1712b4b54153ad760c69a00a08531abef4ed434a5092Tony Linthicum} 1713