#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineLocation.h"
+#include "llvm/CodeGen/SSARegMap.h"
+#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/TargetFrameInfo.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetMachine.h"
// Cache some information.
const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
Is64Bit = Subtarget->is64Bit();
+ StackAlign = TM.getFrameInfo()->getStackAlignment();
if (Is64Bit) {
SlotSize = 8;
StackPtr = X86::RSP;
StackPtr = X86::ESP;
FramePtr = X86::EBP;
}
+
+ SmallVector<unsigned,16> AmbEntries;
+ static const unsigned OpTbl2Addr[][2] = {
+ { X86::ADC32ri, X86::ADC32mi },
+ { X86::ADC32ri8, X86::ADC32mi8 },
+ { X86::ADC32rr, X86::ADC32mr },
+ { X86::ADC64ri32, X86::ADC64mi32 },
+ { X86::ADC64ri8, X86::ADC64mi8 },
+ { X86::ADC64rr, X86::ADC64mr },
+ { X86::ADD16ri, X86::ADD16mi },
+ { X86::ADD16ri8, X86::ADD16mi8 },
+ { X86::ADD16rr, X86::ADD16mr },
+ { X86::ADD32ri, X86::ADD32mi },
+ { X86::ADD32ri8, X86::ADD32mi8 },
+ { X86::ADD32rr, X86::ADD32mr },
+ { X86::ADD64ri32, X86::ADD64mi32 },
+ { X86::ADD64ri8, X86::ADD64mi8 },
+ { X86::ADD64rr, X86::ADD64mr },
+ { X86::ADD8ri, X86::ADD8mi },
+ { X86::ADD8rr, X86::ADD8mr },
+ { X86::AND16ri, X86::AND16mi },
+ { X86::AND16ri8, X86::AND16mi8 },
+ { X86::AND16rr, X86::AND16mr },
+ { X86::AND32ri, X86::AND32mi },
+ { X86::AND32ri8, X86::AND32mi8 },
+ { X86::AND32rr, X86::AND32mr },
+ { X86::AND64ri32, X86::AND64mi32 },
+ { X86::AND64ri8, X86::AND64mi8 },
+ { X86::AND64rr, X86::AND64mr },
+ { X86::AND8ri, X86::AND8mi },
+ { X86::AND8rr, X86::AND8mr },
+ { X86::DEC16r, X86::DEC16m },
+ { X86::DEC32r, X86::DEC32m },
+ { X86::DEC64_16r, X86::DEC64_16m },
+ { X86::DEC64_32r, X86::DEC64_32m },
+ { X86::DEC64r, X86::DEC64m },
+ { X86::DEC8r, X86::DEC8m },
+ { X86::INC16r, X86::INC16m },
+ { X86::INC32r, X86::INC32m },
+ { X86::INC64_16r, X86::INC64_16m },
+ { X86::INC64_32r, X86::INC64_32m },
+ { X86::INC64r, X86::INC64m },
+ { X86::INC8r, X86::INC8m },
+ { X86::NEG16r, X86::NEG16m },
+ { X86::NEG32r, X86::NEG32m },
+ { X86::NEG64r, X86::NEG64m },
+ { X86::NEG8r, X86::NEG8m },
+ { X86::NOT16r, X86::NOT16m },
+ { X86::NOT32r, X86::NOT32m },
+ { X86::NOT64r, X86::NOT64m },
+ { X86::NOT8r, X86::NOT8m },
+ { X86::OR16ri, X86::OR16mi },
+ { X86::OR16ri8, X86::OR16mi8 },
+ { X86::OR16rr, X86::OR16mr },
+ { X86::OR32ri, X86::OR32mi },
+ { X86::OR32ri8, X86::OR32mi8 },
+ { X86::OR32rr, X86::OR32mr },
+ { X86::OR64ri32, X86::OR64mi32 },
+ { X86::OR64ri8, X86::OR64mi8 },
+ { X86::OR64rr, X86::OR64mr },
+ { X86::OR8ri, X86::OR8mi },
+ { X86::OR8rr, X86::OR8mr },
+ { X86::ROL16r1, X86::ROL16m1 },
+ { X86::ROL16rCL, X86::ROL16mCL },
+ { X86::ROL16ri, X86::ROL16mi },
+ { X86::ROL32r1, X86::ROL32m1 },
+ { X86::ROL32rCL, X86::ROL32mCL },
+ { X86::ROL32ri, X86::ROL32mi },
+ { X86::ROL64r1, X86::ROL64m1 },
+ { X86::ROL64rCL, X86::ROL64mCL },
+ { X86::ROL64ri, X86::ROL64mi },
+ { X86::ROL8r1, X86::ROL8m1 },
+ { X86::ROL8rCL, X86::ROL8mCL },
+ { X86::ROL8ri, X86::ROL8mi },
+ { X86::ROR16r1, X86::ROR16m1 },
+ { X86::ROR16rCL, X86::ROR16mCL },
+ { X86::ROR16ri, X86::ROR16mi },
+ { X86::ROR32r1, X86::ROR32m1 },
+ { X86::ROR32rCL, X86::ROR32mCL },
+ { X86::ROR32ri, X86::ROR32mi },
+ { X86::ROR64r1, X86::ROR64m1 },
+ { X86::ROR64rCL, X86::ROR64mCL },
+ { X86::ROR64ri, X86::ROR64mi },
+ { X86::ROR8r1, X86::ROR8m1 },
+ { X86::ROR8rCL, X86::ROR8mCL },
+ { X86::ROR8ri, X86::ROR8mi },
+ { X86::SAR16r1, X86::SAR16m1 },
+ { X86::SAR16rCL, X86::SAR16mCL },
+ { X86::SAR16ri, X86::SAR16mi },
+ { X86::SAR32r1, X86::SAR32m1 },
+ { X86::SAR32rCL, X86::SAR32mCL },
+ { X86::SAR32ri, X86::SAR32mi },
+ { X86::SAR64r1, X86::SAR64m1 },
+ { X86::SAR64rCL, X86::SAR64mCL },
+ { X86::SAR64ri, X86::SAR64mi },
+ { X86::SAR8r1, X86::SAR8m1 },
+ { X86::SAR8rCL, X86::SAR8mCL },
+ { X86::SAR8ri, X86::SAR8mi },
+ { X86::SBB32ri, X86::SBB32mi },
+ { X86::SBB32ri8, X86::SBB32mi8 },
+ { X86::SBB32rr, X86::SBB32mr },
+ { X86::SBB64ri32, X86::SBB64mi32 },
+ { X86::SBB64ri8, X86::SBB64mi8 },
+ { X86::SBB64rr, X86::SBB64mr },
+ { X86::SHL16r1, X86::SHL16m1 },
+ { X86::SHL16rCL, X86::SHL16mCL },
+ { X86::SHL16ri, X86::SHL16mi },
+ { X86::SHL32r1, X86::SHL32m1 },
+ { X86::SHL32rCL, X86::SHL32mCL },
+ { X86::SHL32ri, X86::SHL32mi },
+ { X86::SHL64r1, X86::SHL64m1 },
+ { X86::SHL64rCL, X86::SHL64mCL },
+ { X86::SHL64ri, X86::SHL64mi },
+ { X86::SHL8r1, X86::SHL8m1 },
+ { X86::SHL8rCL, X86::SHL8mCL },
+ { X86::SHL8ri, X86::SHL8mi },
+ { X86::SHLD16rrCL, X86::SHLD16mrCL },
+ { X86::SHLD16rri8, X86::SHLD16mri8 },
+ { X86::SHLD32rrCL, X86::SHLD32mrCL },
+ { X86::SHLD32rri8, X86::SHLD32mri8 },
+ { X86::SHLD64rrCL, X86::SHLD64mrCL },
+ { X86::SHLD64rri8, X86::SHLD64mri8 },
+ { X86::SHR16r1, X86::SHR16m1 },
+ { X86::SHR16rCL, X86::SHR16mCL },
+ { X86::SHR16ri, X86::SHR16mi },
+ { X86::SHR32r1, X86::SHR32m1 },
+ { X86::SHR32rCL, X86::SHR32mCL },
+ { X86::SHR32ri, X86::SHR32mi },
+ { X86::SHR64r1, X86::SHR64m1 },
+ { X86::SHR64rCL, X86::SHR64mCL },
+ { X86::SHR64ri, X86::SHR64mi },
+ { X86::SHR8r1, X86::SHR8m1 },
+ { X86::SHR8rCL, X86::SHR8mCL },
+ { X86::SHR8ri, X86::SHR8mi },
+ { X86::SHRD16rrCL, X86::SHRD16mrCL },
+ { X86::SHRD16rri8, X86::SHRD16mri8 },
+ { X86::SHRD32rrCL, X86::SHRD32mrCL },
+ { X86::SHRD32rri8, X86::SHRD32mri8 },
+ { X86::SHRD64rrCL, X86::SHRD64mrCL },
+ { X86::SHRD64rri8, X86::SHRD64mri8 },
+ { X86::SUB16ri, X86::SUB16mi },
+ { X86::SUB16ri8, X86::SUB16mi8 },
+ { X86::SUB16rr, X86::SUB16mr },
+ { X86::SUB32ri, X86::SUB32mi },
+ { X86::SUB32ri8, X86::SUB32mi8 },
+ { X86::SUB32rr, X86::SUB32mr },
+ { X86::SUB64ri32, X86::SUB64mi32 },
+ { X86::SUB64ri8, X86::SUB64mi8 },
+ { X86::SUB64rr, X86::SUB64mr },
+ { X86::SUB8ri, X86::SUB8mi },
+ { X86::SUB8rr, X86::SUB8mr },
+ { X86::XOR16ri, X86::XOR16mi },
+ { X86::XOR16ri8, X86::XOR16mi8 },
+ { X86::XOR16rr, X86::XOR16mr },
+ { X86::XOR32ri, X86::XOR32mi },
+ { X86::XOR32ri8, X86::XOR32mi8 },
+ { X86::XOR32rr, X86::XOR32mr },
+ { X86::XOR64ri32, X86::XOR64mi32 },
+ { X86::XOR64ri8, X86::XOR64mi8 },
+ { X86::XOR64rr, X86::XOR64mr },
+ { X86::XOR8ri, X86::XOR8mi },
+ { X86::XOR8rr, X86::XOR8mr }
+ };
+
+ for (unsigned i = 0, e = array_lengthof(OpTbl2Addr); i != e; ++i) {
+ unsigned RegOp = OpTbl2Addr[i][0];
+ unsigned MemOp = OpTbl2Addr[i][1];
+ if (!RegOp2MemOpTable2Addr.insert(std::make_pair((unsigned*)RegOp, MemOp)))
+ assert(false && "Duplicated entries?");
+ unsigned AuxInfo = 0 | (1 << 4) | (1 << 5); // Index 0,folded load and store
+ if (!MemOp2RegOpTable.insert(std::make_pair((unsigned*)MemOp,
+ std::make_pair(RegOp, AuxInfo))))
+ AmbEntries.push_back(MemOp);
+ }
+
+ // If the third value is 1, then it's folding either a load or a store.
+ static const unsigned OpTbl0[][3] = {
+ { X86::CALL32r, X86::CALL32m, 1 },
+ { X86::CALL64r, X86::CALL64m, 1 },
+ { X86::CMP16ri, X86::CMP16mi, 1 },
+ { X86::CMP16ri8, X86::CMP16mi8, 1 },
+ { X86::CMP32ri, X86::CMP32mi, 1 },
+ { X86::CMP32ri8, X86::CMP32mi8, 1 },
+ { X86::CMP64ri32, X86::CMP64mi32, 1 },
+ { X86::CMP64ri8, X86::CMP64mi8, 1 },
+ { X86::CMP8ri, X86::CMP8mi, 1 },
+ { X86::DIV16r, X86::DIV16m, 1 },
+ { X86::DIV32r, X86::DIV32m, 1 },
+ { X86::DIV64r, X86::DIV64m, 1 },
+ { X86::DIV8r, X86::DIV8m, 1 },
+ { X86::FsMOVAPDrr, X86::MOVSDmr, 0 },
+ { X86::FsMOVAPSrr, X86::MOVSSmr, 0 },
+ { X86::IDIV16r, X86::IDIV16m, 1 },
+ { X86::IDIV32r, X86::IDIV32m, 1 },
+ { X86::IDIV64r, X86::IDIV64m, 1 },
+ { X86::IDIV8r, X86::IDIV8m, 1 },
+ { X86::IMUL16r, X86::IMUL16m, 1 },
+ { X86::IMUL32r, X86::IMUL32m, 1 },
+ { X86::IMUL64r, X86::IMUL64m, 1 },
+ { X86::IMUL8r, X86::IMUL8m, 1 },
+ { X86::JMP32r, X86::JMP32m, 1 },
+ { X86::JMP64r, X86::JMP64m, 1 },
+ { X86::MOV16ri, X86::MOV16mi, 0 },
+ { X86::MOV16rr, X86::MOV16mr, 0 },
+ { X86::MOV16to16_, X86::MOV16_mr, 0 },
+ { X86::MOV32ri, X86::MOV32mi, 0 },
+ { X86::MOV32rr, X86::MOV32mr, 0 },
+ { X86::MOV32to32_, X86::MOV32_mr, 0 },
+ { X86::MOV64ri32, X86::MOV64mi32, 0 },
+ { X86::MOV64rr, X86::MOV64mr, 0 },
+ { X86::MOV8ri, X86::MOV8mi, 0 },
+ { X86::MOV8rr, X86::MOV8mr, 0 },
+ { X86::MOVAPDrr, X86::MOVAPDmr, 0 },
+ { X86::MOVAPSrr, X86::MOVAPSmr, 0 },
+ { X86::MOVPDI2DIrr, X86::MOVPDI2DImr, 0 },
+ { X86::MOVPQIto64rr,X86::MOVPQIto64mr, 0 },
+ { X86::MOVPS2SSrr, X86::MOVPS2SSmr, 0 },
+ { X86::MOVSDrr, X86::MOVSDmr, 0 },
+ { X86::MOVSDto64rr, X86::MOVSDto64mr, 0 },
+ { X86::MOVSS2DIrr, X86::MOVSS2DImr, 0 },
+ { X86::MOVSSrr, X86::MOVSSmr, 0 },
+ { X86::MOVUPDrr, X86::MOVUPDmr, 0 },
+ { X86::MOVUPSrr, X86::MOVUPSmr, 0 },
+ { X86::MUL16r, X86::MUL16m, 1 },
+ { X86::MUL32r, X86::MUL32m, 1 },
+ { X86::MUL64r, X86::MUL64m, 1 },
+ { X86::MUL8r, X86::MUL8m, 1 },
+ { X86::SETAEr, X86::SETAEm, 0 },
+ { X86::SETAr, X86::SETAm, 0 },
+ { X86::SETBEr, X86::SETBEm, 0 },
+ { X86::SETBr, X86::SETBm, 0 },
+ { X86::SETEr, X86::SETEm, 0 },
+ { X86::SETGEr, X86::SETGEm, 0 },
+ { X86::SETGr, X86::SETGm, 0 },
+ { X86::SETLEr, X86::SETLEm, 0 },
+ { X86::SETLr, X86::SETLm, 0 },
+ { X86::SETNEr, X86::SETNEm, 0 },
+ { X86::SETNPr, X86::SETNPm, 0 },
+ { X86::SETNSr, X86::SETNSm, 0 },
+ { X86::SETPr, X86::SETPm, 0 },
+ { X86::SETSr, X86::SETSm, 0 },
+ { X86::TAILJMPr, X86::TAILJMPm, 1 },
+ { X86::TEST16ri, X86::TEST16mi, 1 },
+ { X86::TEST32ri, X86::TEST32mi, 1 },
+ { X86::TEST64ri32, X86::TEST64mi32, 1 },
+ { X86::TEST8ri, X86::TEST8mi, 1 },
+ { X86::XCHG16rr, X86::XCHG16mr, 0 },
+ { X86::XCHG32rr, X86::XCHG32mr, 0 },
+ { X86::XCHG64rr, X86::XCHG64mr, 0 },
+ { X86::XCHG8rr, X86::XCHG8mr, 0 }
+ };
+
+ for (unsigned i = 0, e = array_lengthof(OpTbl0); i != e; ++i) {
+ unsigned RegOp = OpTbl0[i][0];
+ unsigned MemOp = OpTbl0[i][1];
+ if (!RegOp2MemOpTable0.insert(std::make_pair((unsigned*)RegOp, MemOp)))
+ assert(false && "Duplicated entries?");
+ unsigned FoldedLoad = OpTbl0[i][2];
+ // Index 0, folded load or store.
+ unsigned AuxInfo = 0 | (FoldedLoad << 4) | ((FoldedLoad^1) << 5);
+ if (RegOp != X86::FsMOVAPDrr && RegOp != X86::FsMOVAPSrr)
+ if (!MemOp2RegOpTable.insert(std::make_pair((unsigned*)MemOp,
+ std::make_pair(RegOp, AuxInfo))))
+ AmbEntries.push_back(MemOp);
+ }
+
+ static const unsigned OpTbl1[][2] = {
+ { X86::CMP16rr, X86::CMP16rm },
+ { X86::CMP32rr, X86::CMP32rm },
+ { X86::CMP64rr, X86::CMP64rm },
+ { X86::CMP8rr, X86::CMP8rm },
+ { X86::CVTSD2SSrr, X86::CVTSD2SSrm },
+ { X86::CVTSI2SD64rr, X86::CVTSI2SD64rm },
+ { X86::CVTSI2SDrr, X86::CVTSI2SDrm },
+ { X86::CVTSI2SS64rr, X86::CVTSI2SS64rm },
+ { X86::CVTSI2SSrr, X86::CVTSI2SSrm },
+ { X86::CVTSS2SDrr, X86::CVTSS2SDrm },
+ { X86::CVTTSD2SI64rr, X86::CVTTSD2SI64rm },
+ { X86::CVTTSD2SIrr, X86::CVTTSD2SIrm },
+ { X86::CVTTSS2SI64rr, X86::CVTTSS2SI64rm },
+ { X86::CVTTSS2SIrr, X86::CVTTSS2SIrm },
+ { X86::FsMOVAPDrr, X86::MOVSDrm },
+ { X86::FsMOVAPSrr, X86::MOVSSrm },
+ { X86::IMUL16rri, X86::IMUL16rmi },
+ { X86::IMUL16rri8, X86::IMUL16rmi8 },
+ { X86::IMUL32rri, X86::IMUL32rmi },
+ { X86::IMUL32rri8, X86::IMUL32rmi8 },
+ { X86::IMUL64rri32, X86::IMUL64rmi32 },
+ { X86::IMUL64rri8, X86::IMUL64rmi8 },
+ { X86::Int_CMPSDrr, X86::Int_CMPSDrm },
+ { X86::Int_CMPSSrr, X86::Int_CMPSSrm },
+ { X86::Int_COMISDrr, X86::Int_COMISDrm },
+ { X86::Int_COMISSrr, X86::Int_COMISSrm },
+ { X86::Int_CVTDQ2PDrr, X86::Int_CVTDQ2PDrm },
+ { X86::Int_CVTDQ2PSrr, X86::Int_CVTDQ2PSrm },
+ { X86::Int_CVTPD2DQrr, X86::Int_CVTPD2DQrm },
+ { X86::Int_CVTPD2PSrr, X86::Int_CVTPD2PSrm },
+ { X86::Int_CVTPS2DQrr, X86::Int_CVTPS2DQrm },
+ { X86::Int_CVTPS2PDrr, X86::Int_CVTPS2PDrm },
+ { X86::Int_CVTSD2SI64rr,X86::Int_CVTSD2SI64rm },
+ { X86::Int_CVTSD2SIrr, X86::Int_CVTSD2SIrm },
+ { X86::Int_CVTSD2SSrr, X86::Int_CVTSD2SSrm },
+ { X86::Int_CVTSI2SD64rr,X86::Int_CVTSI2SD64rm },
+ { X86::Int_CVTSI2SDrr, X86::Int_CVTSI2SDrm },
+ { X86::Int_CVTSI2SS64rr,X86::Int_CVTSI2SS64rm },
+ { X86::Int_CVTSI2SSrr, X86::Int_CVTSI2SSrm },
+ { X86::Int_CVTSS2SDrr, X86::Int_CVTSS2SDrm },
+ { X86::Int_CVTSS2SI64rr,X86::Int_CVTSS2SI64rm },
+ { X86::Int_CVTSS2SIrr, X86::Int_CVTSS2SIrm },
+ { X86::Int_CVTTPD2DQrr, X86::Int_CVTTPD2DQrm },
+ { X86::Int_CVTTPS2DQrr, X86::Int_CVTTPS2DQrm },
+ { X86::Int_CVTTSD2SI64rr,X86::Int_CVTTSD2SI64rm },
+ { X86::Int_CVTTSD2SIrr, X86::Int_CVTTSD2SIrm },
+ { X86::Int_CVTTSS2SI64rr,X86::Int_CVTTSS2SI64rm },
+ { X86::Int_CVTTSS2SIrr, X86::Int_CVTTSS2SIrm },
+ { X86::Int_UCOMISDrr, X86::Int_UCOMISDrm },
+ { X86::Int_UCOMISSrr, X86::Int_UCOMISSrm },
+ { X86::MOV16rr, X86::MOV16rm },
+ { X86::MOV16to16_, X86::MOV16_rm },
+ { X86::MOV32rr, X86::MOV32rm },
+ { X86::MOV32to32_, X86::MOV32_rm },
+ { X86::MOV64rr, X86::MOV64rm },
+ { X86::MOV64toPQIrr, X86::MOV64toPQIrm },
+ { X86::MOV64toSDrr, X86::MOV64toSDrm },
+ { X86::MOV8rr, X86::MOV8rm },
+ { X86::MOVAPDrr, X86::MOVAPDrm },
+ { X86::MOVAPSrr, X86::MOVAPSrm },
+ { X86::MOVDDUPrr, X86::MOVDDUPrm },
+ { X86::MOVDI2PDIrr, X86::MOVDI2PDIrm },
+ { X86::MOVDI2SSrr, X86::MOVDI2SSrm },
+ { X86::MOVSD2PDrr, X86::MOVSD2PDrm },
+ { X86::MOVSDrr, X86::MOVSDrm },
+ { X86::MOVSHDUPrr, X86::MOVSHDUPrm },
+ { X86::MOVSLDUPrr, X86::MOVSLDUPrm },
+ { X86::MOVSS2PSrr, X86::MOVSS2PSrm },
+ { X86::MOVSSrr, X86::MOVSSrm },
+ { X86::MOVSX16rr8, X86::MOVSX16rm8 },
+ { X86::MOVSX32rr16, X86::MOVSX32rm16 },
+ { X86::MOVSX32rr8, X86::MOVSX32rm8 },
+ { X86::MOVSX64rr16, X86::MOVSX64rm16 },
+ { X86::MOVSX64rr32, X86::MOVSX64rm32 },
+ { X86::MOVSX64rr8, X86::MOVSX64rm8 },
+ { X86::MOVUPDrr, X86::MOVUPDrm },
+ { X86::MOVUPSrr, X86::MOVUPSrm },
+ { X86::MOVZX16rr8, X86::MOVZX16rm8 },
+ { X86::MOVZX32rr16, X86::MOVZX32rm16 },
+ { X86::MOVZX32rr8, X86::MOVZX32rm8 },
+ { X86::MOVZX64rr16, X86::MOVZX64rm16 },
+ { X86::MOVZX64rr8, X86::MOVZX64rm8 },
+ { X86::PSHUFDri, X86::PSHUFDmi },
+ { X86::PSHUFHWri, X86::PSHUFHWmi },
+ { X86::PSHUFLWri, X86::PSHUFLWmi },
+ { X86::PsMOVZX64rr32, X86::PsMOVZX64rm32 },
+ { X86::RCPPSr, X86::RCPPSm },
+ { X86::RCPPSr_Int, X86::RCPPSm_Int },
+ { X86::RSQRTPSr, X86::RSQRTPSm },
+ { X86::RSQRTPSr_Int, X86::RSQRTPSm_Int },
+ { X86::RSQRTSSr, X86::RSQRTSSm },
+ { X86::RSQRTSSr_Int, X86::RSQRTSSm_Int },
+ { X86::SQRTPDr, X86::SQRTPDm },
+ { X86::SQRTPDr_Int, X86::SQRTPDm_Int },
+ { X86::SQRTPSr, X86::SQRTPSm },
+ { X86::SQRTPSr_Int, X86::SQRTPSm_Int },
+ { X86::SQRTSDr, X86::SQRTSDm },
+ { X86::SQRTSDr_Int, X86::SQRTSDm_Int },
+ { X86::SQRTSSr, X86::SQRTSSm },
+ { X86::SQRTSSr_Int, X86::SQRTSSm_Int },
+ { X86::TEST16rr, X86::TEST16rm },
+ { X86::TEST32rr, X86::TEST32rm },
+ { X86::TEST64rr, X86::TEST64rm },
+ { X86::TEST8rr, X86::TEST8rm },
+ // FIXME: TEST*rr EAX,EAX ---> CMP [mem], 0
+ { X86::UCOMISDrr, X86::UCOMISDrm },
+ { X86::UCOMISSrr, X86::UCOMISSrm },
+ { X86::XCHG16rr, X86::XCHG16rm },
+ { X86::XCHG32rr, X86::XCHG32rm },
+ { X86::XCHG64rr, X86::XCHG64rm },
+ { X86::XCHG8rr, X86::XCHG8rm }
+ };
+
+ for (unsigned i = 0, e = array_lengthof(OpTbl1); i != e; ++i) {
+ unsigned RegOp = OpTbl1[i][0];
+ unsigned MemOp = OpTbl1[i][1];
+ if (!RegOp2MemOpTable1.insert(std::make_pair((unsigned*)RegOp, MemOp)))
+ assert(false && "Duplicated entries?");
+ unsigned AuxInfo = 1 | (1 << 4); // Index 1, folded load
+ if (RegOp != X86::FsMOVAPDrr && RegOp != X86::FsMOVAPSrr)
+ if (!MemOp2RegOpTable.insert(std::make_pair((unsigned*)MemOp,
+ std::make_pair(RegOp, AuxInfo))))
+ AmbEntries.push_back(MemOp);
+ }
+
+ static const unsigned OpTbl2[][2] = {
+ { X86::ADC32rr, X86::ADC32rm },
+ { X86::ADC64rr, X86::ADC64rm },
+ { X86::ADD16rr, X86::ADD16rm },
+ { X86::ADD32rr, X86::ADD32rm },
+ { X86::ADD64rr, X86::ADD64rm },
+ { X86::ADD8rr, X86::ADD8rm },
+ { X86::ADDPDrr, X86::ADDPDrm },
+ { X86::ADDPSrr, X86::ADDPSrm },
+ { X86::ADDSDrr, X86::ADDSDrm },
+ { X86::ADDSSrr, X86::ADDSSrm },
+ { X86::ADDSUBPDrr, X86::ADDSUBPDrm },
+ { X86::ADDSUBPSrr, X86::ADDSUBPSrm },
+ { X86::AND16rr, X86::AND16rm },
+ { X86::AND32rr, X86::AND32rm },
+ { X86::AND64rr, X86::AND64rm },
+ { X86::AND8rr, X86::AND8rm },
+ { X86::ANDNPDrr, X86::ANDNPDrm },
+ { X86::ANDNPSrr, X86::ANDNPSrm },
+ { X86::ANDPDrr, X86::ANDPDrm },
+ { X86::ANDPSrr, X86::ANDPSrm },
+ { X86::CMOVA16rr, X86::CMOVA16rm },
+ { X86::CMOVA32rr, X86::CMOVA32rm },
+ { X86::CMOVA64rr, X86::CMOVA64rm },
+ { X86::CMOVAE16rr, X86::CMOVAE16rm },
+ { X86::CMOVAE32rr, X86::CMOVAE32rm },
+ { X86::CMOVAE64rr, X86::CMOVAE64rm },
+ { X86::CMOVB16rr, X86::CMOVB16rm },
+ { X86::CMOVB32rr, X86::CMOVB32rm },
+ { X86::CMOVB64rr, X86::CMOVB64rm },
+ { X86::CMOVBE16rr, X86::CMOVBE16rm },
+ { X86::CMOVBE32rr, X86::CMOVBE32rm },
+ { X86::CMOVBE64rr, X86::CMOVBE64rm },
+ { X86::CMOVE16rr, X86::CMOVE16rm },
+ { X86::CMOVE32rr, X86::CMOVE32rm },
+ { X86::CMOVE64rr, X86::CMOVE64rm },
+ { X86::CMOVG16rr, X86::CMOVG16rm },
+ { X86::CMOVG32rr, X86::CMOVG32rm },
+ { X86::CMOVG64rr, X86::CMOVG64rm },
+ { X86::CMOVGE16rr, X86::CMOVGE16rm },
+ { X86::CMOVGE32rr, X86::CMOVGE32rm },
+ { X86::CMOVGE64rr, X86::CMOVGE64rm },
+ { X86::CMOVL16rr, X86::CMOVL16rm },
+ { X86::CMOVL32rr, X86::CMOVL32rm },
+ { X86::CMOVL64rr, X86::CMOVL64rm },
+ { X86::CMOVLE16rr, X86::CMOVLE16rm },
+ { X86::CMOVLE32rr, X86::CMOVLE32rm },
+ { X86::CMOVLE64rr, X86::CMOVLE64rm },
+ { X86::CMOVNE16rr, X86::CMOVNE16rm },
+ { X86::CMOVNE32rr, X86::CMOVNE32rm },
+ { X86::CMOVNE64rr, X86::CMOVNE64rm },
+ { X86::CMOVNP16rr, X86::CMOVNP16rm },
+ { X86::CMOVNP32rr, X86::CMOVNP32rm },
+ { X86::CMOVNP64rr, X86::CMOVNP64rm },
+ { X86::CMOVNS16rr, X86::CMOVNS16rm },
+ { X86::CMOVNS32rr, X86::CMOVNS32rm },
+ { X86::CMOVNS64rr, X86::CMOVNS64rm },
+ { X86::CMOVP16rr, X86::CMOVP16rm },
+ { X86::CMOVP32rr, X86::CMOVP32rm },
+ { X86::CMOVP64rr, X86::CMOVP64rm },
+ { X86::CMOVS16rr, X86::CMOVS16rm },
+ { X86::CMOVS32rr, X86::CMOVS32rm },
+ { X86::CMOVS64rr, X86::CMOVS64rm },
+ { X86::CMPPDrri, X86::CMPPDrmi },
+ { X86::CMPPSrri, X86::CMPPSrmi },
+ { X86::CMPSDrr, X86::CMPSDrm },
+ { X86::CMPSSrr, X86::CMPSSrm },
+ { X86::DIVPDrr, X86::DIVPDrm },
+ { X86::DIVPSrr, X86::DIVPSrm },
+ { X86::DIVSDrr, X86::DIVSDrm },
+ { X86::DIVSSrr, X86::DIVSSrm },
+ { X86::HADDPDrr, X86::HADDPDrm },
+ { X86::HADDPSrr, X86::HADDPSrm },
+ { X86::HSUBPDrr, X86::HSUBPDrm },
+ { X86::HSUBPSrr, X86::HSUBPSrm },
+ { X86::IMUL16rr, X86::IMUL16rm },
+ { X86::IMUL32rr, X86::IMUL32rm },
+ { X86::IMUL64rr, X86::IMUL64rm },
+ { X86::MAXPDrr, X86::MAXPDrm },
+ { X86::MAXPDrr_Int, X86::MAXPDrm_Int },
+ { X86::MAXPSrr, X86::MAXPSrm },
+ { X86::MAXPSrr_Int, X86::MAXPSrm_Int },
+ { X86::MAXSDrr, X86::MAXSDrm },
+ { X86::MAXSDrr_Int, X86::MAXSDrm_Int },
+ { X86::MAXSSrr, X86::MAXSSrm },
+ { X86::MAXSSrr_Int, X86::MAXSSrm_Int },
+ { X86::MINPDrr, X86::MINPDrm },
+ { X86::MINPDrr_Int, X86::MINPDrm_Int },
+ { X86::MINPSrr, X86::MINPSrm },
+ { X86::MINPSrr_Int, X86::MINPSrm_Int },
+ { X86::MINSDrr, X86::MINSDrm },
+ { X86::MINSDrr_Int, X86::MINSDrm_Int },
+ { X86::MINSSrr, X86::MINSSrm },
+ { X86::MINSSrr_Int, X86::MINSSrm_Int },
+ { X86::MULPDrr, X86::MULPDrm },
+ { X86::MULPSrr, X86::MULPSrm },
+ { X86::MULSDrr, X86::MULSDrm },
+ { X86::MULSSrr, X86::MULSSrm },
+ { X86::OR16rr, X86::OR16rm },
+ { X86::OR32rr, X86::OR32rm },
+ { X86::OR64rr, X86::OR64rm },
+ { X86::OR8rr, X86::OR8rm },
+ { X86::ORPDrr, X86::ORPDrm },
+ { X86::ORPSrr, X86::ORPSrm },
+ { X86::PACKSSDWrr, X86::PACKSSDWrm },
+ { X86::PACKSSWBrr, X86::PACKSSWBrm },
+ { X86::PACKUSWBrr, X86::PACKUSWBrm },
+ { X86::PADDBrr, X86::PADDBrm },
+ { X86::PADDDrr, X86::PADDDrm },
+ { X86::PADDQrr, X86::PADDQrm },
+ { X86::PADDSBrr, X86::PADDSBrm },
+ { X86::PADDSWrr, X86::PADDSWrm },
+ { X86::PADDWrr, X86::PADDWrm },
+ { X86::PANDNrr, X86::PANDNrm },
+ { X86::PANDrr, X86::PANDrm },
+ { X86::PAVGBrr, X86::PAVGBrm },
+ { X86::PAVGWrr, X86::PAVGWrm },
+ { X86::PCMPEQBrr, X86::PCMPEQBrm },
+ { X86::PCMPEQDrr, X86::PCMPEQDrm },
+ { X86::PCMPEQWrr, X86::PCMPEQWrm },
+ { X86::PCMPGTBrr, X86::PCMPGTBrm },
+ { X86::PCMPGTDrr, X86::PCMPGTDrm },
+ { X86::PCMPGTWrr, X86::PCMPGTWrm },
+ { X86::PINSRWrri, X86::PINSRWrmi },
+ { X86::PMADDWDrr, X86::PMADDWDrm },
+ { X86::PMAXSWrr, X86::PMAXSWrm },
+ { X86::PMAXUBrr, X86::PMAXUBrm },
+ { X86::PMINSWrr, X86::PMINSWrm },
+ { X86::PMINUBrr, X86::PMINUBrm },
+ { X86::PMULHUWrr, X86::PMULHUWrm },
+ { X86::PMULHWrr, X86::PMULHWrm },
+ { X86::PMULLWrr, X86::PMULLWrm },
+ { X86::PMULUDQrr, X86::PMULUDQrm },
+ { X86::PORrr, X86::PORrm },
+ { X86::PSADBWrr, X86::PSADBWrm },
+ { X86::PSLLDrr, X86::PSLLDrm },
+ { X86::PSLLQrr, X86::PSLLQrm },
+ { X86::PSLLWrr, X86::PSLLWrm },
+ { X86::PSRADrr, X86::PSRADrm },
+ { X86::PSRAWrr, X86::PSRAWrm },
+ { X86::PSRLDrr, X86::PSRLDrm },
+ { X86::PSRLQrr, X86::PSRLQrm },
+ { X86::PSRLWrr, X86::PSRLWrm },
+ { X86::PSUBBrr, X86::PSUBBrm },
+ { X86::PSUBDrr, X86::PSUBDrm },
+ { X86::PSUBSBrr, X86::PSUBSBrm },
+ { X86::PSUBSWrr, X86::PSUBSWrm },
+ { X86::PSUBWrr, X86::PSUBWrm },
+ { X86::PUNPCKHBWrr, X86::PUNPCKHBWrm },
+ { X86::PUNPCKHDQrr, X86::PUNPCKHDQrm },
+ { X86::PUNPCKHQDQrr, X86::PUNPCKHQDQrm },
+ { X86::PUNPCKHWDrr, X86::PUNPCKHWDrm },
+ { X86::PUNPCKLBWrr, X86::PUNPCKLBWrm },
+ { X86::PUNPCKLDQrr, X86::PUNPCKLDQrm },
+ { X86::PUNPCKLQDQrr, X86::PUNPCKLQDQrm },
+ { X86::PUNPCKLWDrr, X86::PUNPCKLWDrm },
+ { X86::PXORrr, X86::PXORrm },
+ { X86::SBB32rr, X86::SBB32rm },
+ { X86::SBB64rr, X86::SBB64rm },
+ { X86::SHUFPDrri, X86::SHUFPDrmi },
+ { X86::SHUFPSrri, X86::SHUFPSrmi },
+ { X86::SUB16rr, X86::SUB16rm },
+ { X86::SUB32rr, X86::SUB32rm },
+ { X86::SUB64rr, X86::SUB64rm },
+ { X86::SUB8rr, X86::SUB8rm },
+ { X86::SUBPDrr, X86::SUBPDrm },
+ { X86::SUBPSrr, X86::SUBPSrm },
+ { X86::SUBSDrr, X86::SUBSDrm },
+ { X86::SUBSSrr, X86::SUBSSrm },
+ // FIXME: TEST*rr -> swapped operand of TEST*mr.
+ { X86::UNPCKHPDrr, X86::UNPCKHPDrm },
+ { X86::UNPCKHPSrr, X86::UNPCKHPSrm },
+ { X86::UNPCKLPDrr, X86::UNPCKLPDrm },
+ { X86::UNPCKLPSrr, X86::UNPCKLPSrm },
+ { X86::XOR16rr, X86::XOR16rm },
+ { X86::XOR32rr, X86::XOR32rm },
+ { X86::XOR64rr, X86::XOR64rm },
+ { X86::XOR8rr, X86::XOR8rm },
+ { X86::XORPDrr, X86::XORPDrm },
+ { X86::XORPSrr, X86::XORPSrm }
+ };
+
+ for (unsigned i = 0, e = array_lengthof(OpTbl2); i != e; ++i) {
+ unsigned RegOp = OpTbl2[i][0];
+ unsigned MemOp = OpTbl2[i][1];
+ if (!RegOp2MemOpTable2.insert(std::make_pair((unsigned*)RegOp, MemOp)))
+ assert(false && "Duplicated entries?");
+ unsigned AuxInfo = 2 | (1 << 4); // Index 1, folded load
+ if (!MemOp2RegOpTable.insert(std::make_pair((unsigned*)MemOp,
+ std::make_pair(RegOp, AuxInfo))))
+ AmbEntries.push_back(MemOp);
+ }
+
+ // Remove ambiguous entries.
+ assert(AmbEntries.empty() && "Duplicated entries in unfolding maps?");
}
-void X86RegisterInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MI,
- unsigned SrcReg, int FrameIdx,
- const TargetRegisterClass *RC) const {
- unsigned Opc;
+// getDwarfRegNum - This function maps LLVM register identifiers to the
+// Dwarf specific numbering, used in debug info and exception tables.
+// The registers are given "basic" dwarf numbers in the .td files,
+// which are collected by TableGen into X86GenRegisterInfo::getDwarfRegNum.
+// This wrapper allows for target-specific overrides.
+int X86RegisterInfo::getDwarfRegNum(unsigned RegNo) const {
+ int n = X86GenRegisterInfo::getDwarfRegNum(RegNo);
+ const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
+ if (Subtarget->isDarwin) {
+ // ESP and EBP are switched.
+ if (n==4) return 5;
+ if (n==5) return 4;
+ }
+ return n;
+}
+
+// getX86RegNum - This function maps LLVM register identifiers to their X86
+// specific numbering, which is used in various places encoding instructions.
+//
+unsigned X86RegisterInfo::getX86RegNum(unsigned RegNo) {
+ switch(RegNo) {
+ case X86::RAX: case X86::EAX: case X86::AX: case X86::AL: return N86::EAX;
+ case X86::RCX: case X86::ECX: case X86::CX: case X86::CL: return N86::ECX;
+ case X86::RDX: case X86::EDX: case X86::DX: case X86::DL: return N86::EDX;
+ case X86::RBX: case X86::EBX: case X86::BX: case X86::BL: return N86::EBX;
+ case X86::RSP: case X86::ESP: case X86::SP: case X86::SPL: case X86::AH:
+ return N86::ESP;
+ case X86::RBP: case X86::EBP: case X86::BP: case X86::BPL: case X86::CH:
+ return N86::EBP;
+ case X86::RSI: case X86::ESI: case X86::SI: case X86::SIL: case X86::DH:
+ return N86::ESI;
+ case X86::RDI: case X86::EDI: case X86::DI: case X86::DIL: case X86::BH:
+ return N86::EDI;
+
+ case X86::R8: case X86::R8D: case X86::R8W: case X86::R8B:
+ return N86::EAX;
+ case X86::R9: case X86::R9D: case X86::R9W: case X86::R9B:
+ return N86::ECX;
+ case X86::R10: case X86::R10D: case X86::R10W: case X86::R10B:
+ return N86::EDX;
+ case X86::R11: case X86::R11D: case X86::R11W: case X86::R11B:
+ return N86::EBX;
+ case X86::R12: case X86::R12D: case X86::R12W: case X86::R12B:
+ return N86::ESP;
+ case X86::R13: case X86::R13D: case X86::R13W: case X86::R13B:
+ return N86::EBP;
+ case X86::R14: case X86::R14D: case X86::R14W: case X86::R14B:
+ return N86::ESI;
+ case X86::R15: case X86::R15D: case X86::R15W: case X86::R15B:
+ return N86::EDI;
+
+ case X86::ST0: case X86::ST1: case X86::ST2: case X86::ST3:
+ case X86::ST4: case X86::ST5: case X86::ST6: case X86::ST7:
+ return RegNo-X86::ST0;
+
+ case X86::XMM0: case X86::XMM1: case X86::XMM2: case X86::XMM3:
+ case X86::XMM4: case X86::XMM5: case X86::XMM6: case X86::XMM7:
+ return getDwarfRegNum(RegNo) - getDwarfRegNum(X86::XMM0);
+ case X86::XMM8: case X86::XMM9: case X86::XMM10: case X86::XMM11:
+ case X86::XMM12: case X86::XMM13: case X86::XMM14: case X86::XMM15:
+ return getDwarfRegNum(RegNo) - getDwarfRegNum(X86::XMM8);
+
+ default:
+ assert(isVirtualRegister(RegNo) && "Unknown physical register!");
+ assert(0 && "Register allocator hasn't allocated reg correctly yet!");
+ return 0;
+ }
+}
+
+bool X86RegisterInfo::spillCalleeSavedRegisters(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI,
+ const std::vector<CalleeSavedInfo> &CSI) const {
+ if (CSI.empty())
+ return false;
+
+ MachineFunction &MF = *MBB.getParent();
+ X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
+ X86FI->setCalleeSavedFrameSize(CSI.size() * SlotSize);
+ unsigned Opc = Is64Bit ? X86::PUSH64r : X86::PUSH32r;
+ for (unsigned i = CSI.size(); i != 0; --i) {
+ unsigned Reg = CSI[i-1].getReg();
+ // Add the callee-saved register as live-in. It's killed at the spill.
+ MBB.addLiveIn(Reg);
+ BuildMI(MBB, MI, TII.get(Opc)).addReg(Reg);
+ }
+ return true;
+}
+
+bool X86RegisterInfo::restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI,
+ const std::vector<CalleeSavedInfo> &CSI) const {
+ if (CSI.empty())
+ return false;
+
+ unsigned Opc = Is64Bit ? X86::POP64r : X86::POP32r;
+ for (unsigned i = 0, e = CSI.size(); i != e; ++i) {
+ unsigned Reg = CSI[i].getReg();
+ BuildMI(MBB, MI, TII.get(Opc), Reg);
+ }
+ return true;
+}
+
+static const MachineInstrBuilder &X86InstrAddOperand(MachineInstrBuilder &MIB,
+ MachineOperand &MO) {
+ if (MO.isRegister())
+ MIB = MIB.addReg(MO.getReg(), MO.isDef(), MO.isImplicit());
+ else if (MO.isImmediate())
+ MIB = MIB.addImm(MO.getImm());
+ else if (MO.isFrameIndex())
+ MIB = MIB.addFrameIndex(MO.getFrameIndex());
+ else if (MO.isGlobalAddress())
+ MIB = MIB.addGlobalAddress(MO.getGlobal(), MO.getOffset());
+ else if (MO.isConstantPoolIndex())
+ MIB = MIB.addConstantPoolIndex(MO.getConstantPoolIndex(), MO.getOffset());
+ else if (MO.isJumpTableIndex())
+ MIB = MIB.addJumpTableIndex(MO.getJumpTableIndex());
+ else if (MO.isExternalSymbol())
+ MIB = MIB.addExternalSymbol(MO.getSymbolName());
+ else
+ assert(0 && "Unknown operand for X86InstrAddOperand!");
+
+ return MIB;
+}
+
+static unsigned getStoreRegOpcode(const TargetRegisterClass *RC,
+ unsigned StackAlign) {
+ unsigned Opc = 0;
if (RC == &X86::GR64RegClass) {
Opc = X86::MOV64mr;
} else if (RC == &X86::GR32RegClass) {
Opc = X86::MOV32_mr;
} else if (RC == &X86::GR16_RegClass) {
Opc = X86::MOV16_mr;
- } else if (RC == &X86::RFPRegClass || RC == &X86::RSTRegClass) {
- Opc = X86::FpST64m;
+ } else if (RC == &X86::RFP80RegClass) {
+ Opc = X86::ST_FpP80m; // pops
+ } else if (RC == &X86::RFP64RegClass) {
+ Opc = X86::ST_Fp64m;
+ } else if (RC == &X86::RFP32RegClass) {
+ Opc = X86::ST_Fp32m;
} else if (RC == &X86::FR32RegClass) {
Opc = X86::MOVSSmr;
} else if (RC == &X86::FR64RegClass) {
Opc = X86::MOVSDmr;
} else if (RC == &X86::VR128RegClass) {
- Opc = X86::MOVAPSmr;
+ // FIXME: Use movaps once we are capable of selectively
+ // aligning functions that spill SSE registers on 16-byte boundaries.
+ Opc = StackAlign >= 16 ? X86::MOVAPSmr : X86::MOVUPSmr;
+ } else if (RC == &X86::VR64RegClass) {
+ Opc = X86::MMX_MOVQ64mr;
} else {
assert(0 && "Unknown regclass");
abort();
}
+
+ return Opc;
+}
+
+void X86RegisterInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI,
+ unsigned SrcReg, int FrameIdx,
+ const TargetRegisterClass *RC) const {
+ unsigned Opc = getStoreRegOpcode(RC, StackAlign);
addFrameReference(BuildMI(MBB, MI, TII.get(Opc)), FrameIdx)
.addReg(SrcReg, false, false, true);
}
-void X86RegisterInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MI,
- unsigned DestReg, int FrameIdx,
- const TargetRegisterClass *RC) const{
- unsigned Opc;
+void X86RegisterInfo::storeRegToAddr(MachineFunction &MF, unsigned SrcReg,
+ SmallVectorImpl<MachineOperand> &Addr,
+ const TargetRegisterClass *RC,
+ SmallVectorImpl<MachineInstr*> &NewMIs) const {
+ unsigned Opc = getStoreRegOpcode(RC, StackAlign);
+ MachineInstrBuilder MIB = BuildMI(TII.get(Opc));
+ for (unsigned i = 0, e = Addr.size(); i != e; ++i)
+ MIB = X86InstrAddOperand(MIB, Addr[i]);
+ MIB.addReg(SrcReg, false, false, true);
+ NewMIs.push_back(MIB);
+}
+
+static unsigned getLoadRegOpcode(const TargetRegisterClass *RC,
+ unsigned StackAlign) {
+ unsigned Opc = 0;
if (RC == &X86::GR64RegClass) {
Opc = X86::MOV64rm;
} else if (RC == &X86::GR32RegClass) {
Opc = X86::MOV32_rm;
} else if (RC == &X86::GR16_RegClass) {
Opc = X86::MOV16_rm;
- } else if (RC == &X86::RFPRegClass || RC == &X86::RSTRegClass) {
- Opc = X86::FpLD64m;
+ } else if (RC == &X86::RFP80RegClass) {
+ Opc = X86::LD_Fp80m;
+ } else if (RC == &X86::RFP64RegClass) {
+ Opc = X86::LD_Fp64m;
+ } else if (RC == &X86::RFP32RegClass) {
+ Opc = X86::LD_Fp32m;
} else if (RC == &X86::FR32RegClass) {
Opc = X86::MOVSSrm;
} else if (RC == &X86::FR64RegClass) {
Opc = X86::MOVSDrm;
} else if (RC == &X86::VR128RegClass) {
- Opc = X86::MOVAPSrm;
+ // FIXME: Use movaps once we are capable of selectively
+ // aligning functions that spill SSE registers on 16-byte boundaries.
+ Opc = StackAlign >= 16 ? X86::MOVAPSrm : X86::MOVUPSrm;
+ } else if (RC == &X86::VR64RegClass) {
+ Opc = X86::MMX_MOVQ64rm;
} else {
assert(0 && "Unknown regclass");
abort();
}
+
+ return Opc;
+}
+
+void X86RegisterInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI,
+ unsigned DestReg, int FrameIdx,
+ const TargetRegisterClass *RC) const{
+ unsigned Opc = getLoadRegOpcode(RC, StackAlign);
addFrameReference(BuildMI(MBB, MI, TII.get(Opc), DestReg), FrameIdx);
}
+void X86RegisterInfo::loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
+ SmallVectorImpl<MachineOperand> &Addr,
+ const TargetRegisterClass *RC,
+ SmallVectorImpl<MachineInstr*> &NewMIs) const {
+ unsigned Opc = getLoadRegOpcode(RC, StackAlign);
+ MachineInstrBuilder MIB = BuildMI(TII.get(Opc), DestReg);
+ for (unsigned i = 0, e = Addr.size(); i != e; ++i)
+ MIB = X86InstrAddOperand(MIB, Addr[i]);
+ NewMIs.push_back(MIB);
+}
+
void X86RegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned DestReg, unsigned SrcReg,
- const TargetRegisterClass *RC) const {
+ const TargetRegisterClass *DestRC,
+ const TargetRegisterClass *SrcRC) const {
+ if (DestRC != SrcRC) {
+ // Moving EFLAGS to / from another register requires a push and a pop.
+ if (SrcRC == &X86::CCRRegClass) {
+ assert(SrcReg == X86::EFLAGS);
+ if (DestRC == &X86::GR64RegClass) {
+ BuildMI(MBB, MI, TII.get(X86::PUSHFQ));
+ BuildMI(MBB, MI, TII.get(X86::POP64r), DestReg);
+ return;
+ } else if (DestRC == &X86::GR32RegClass) {
+ BuildMI(MBB, MI, TII.get(X86::PUSHFD));
+ BuildMI(MBB, MI, TII.get(X86::POP32r), DestReg);
+ return;
+ }
+ } else if (DestRC == &X86::CCRRegClass) {
+ assert(DestReg == X86::EFLAGS);
+ if (SrcRC == &X86::GR64RegClass) {
+ BuildMI(MBB, MI, TII.get(X86::PUSH64r)).addReg(SrcReg);
+ BuildMI(MBB, MI, TII.get(X86::POPFQ));
+ return;
+ } else if (SrcRC == &X86::GR32RegClass) {
+ BuildMI(MBB, MI, TII.get(X86::PUSH32r)).addReg(SrcReg);
+ BuildMI(MBB, MI, TII.get(X86::POPFD));
+ return;
+ }
+ }
+ cerr << "Not yet supported!";
+ abort();
+ }
+
unsigned Opc;
- if (RC == &X86::GR64RegClass) {
+ if (DestRC == &X86::GR64RegClass) {
Opc = X86::MOV64rr;
- } else if (RC == &X86::GR32RegClass) {
+ } else if (DestRC == &X86::GR32RegClass) {
Opc = X86::MOV32rr;
- } else if (RC == &X86::GR16RegClass) {
+ } else if (DestRC == &X86::GR16RegClass) {
Opc = X86::MOV16rr;
- } else if (RC == &X86::GR8RegClass) {
+ } else if (DestRC == &X86::GR8RegClass) {
Opc = X86::MOV8rr;
- } else if (RC == &X86::GR32_RegClass) {
+ } else if (DestRC == &X86::GR32_RegClass) {
Opc = X86::MOV32_rr;
- } else if (RC == &X86::GR16_RegClass) {
+ } else if (DestRC == &X86::GR16_RegClass) {
Opc = X86::MOV16_rr;
- } else if (RC == &X86::RFPRegClass || RC == &X86::RSTRegClass) {
- Opc = X86::FpMOV;
- } else if (RC == &X86::FR32RegClass) {
+ } else if (DestRC == &X86::RFP32RegClass) {
+ Opc = X86::MOV_Fp3232;
+ } else if (DestRC == &X86::RFP64RegClass || DestRC == &X86::RSTRegClass) {
+ Opc = X86::MOV_Fp6464;
+ } else if (DestRC == &X86::RFP80RegClass) {
+ Opc = X86::MOV_Fp8080;
+ } else if (DestRC == &X86::FR32RegClass) {
Opc = X86::FsMOVAPSrr;
- } else if (RC == &X86::FR64RegClass) {
+ } else if (DestRC == &X86::FR64RegClass) {
Opc = X86::FsMOVAPDrr;
- } else if (RC == &X86::VR128RegClass) {
+ } else if (DestRC == &X86::VR128RegClass) {
Opc = X86::MOVAPSrr;
+ } else if (DestRC == &X86::VR64RegClass) {
+ Opc = X86::MMX_MOVQ64rr;
} else {
assert(0 && "Unknown regclass");
abort();
BuildMI(MBB, MI, TII.get(Opc), DestReg).addReg(SrcReg);
}
-static MachineInstr *FuseTwoAddrInst(unsigned Opcode, unsigned FrameIndex,
- MachineInstr *MI,
- const TargetInstrInfo &TII) {
- unsigned NumOps = TII.getNumOperands(MI->getOpcode())-2;
+const TargetRegisterClass *
+X86RegisterInfo::getCrossCopyRegClass(const TargetRegisterClass *RC) const {
+ if (RC == &X86::CCRRegClass)
+ if (Is64Bit)
+ return &X86::GR64RegClass;
+ else
+ return &X86::GR32RegClass;
+ return NULL;
+}
+
+void X86RegisterInfo::reMaterialize(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I,
+ unsigned DestReg,
+ const MachineInstr *Orig) const {
+ // MOV32r0 etc. are implemented with xor which clobbers condition code.
+ // Re-materialize them as movri instructions to avoid side effects.
+ switch (Orig->getOpcode()) {
+ case X86::MOV8r0:
+ BuildMI(MBB, I, TII.get(X86::MOV8ri), DestReg).addImm(0);
+ break;
+ case X86::MOV16r0:
+ BuildMI(MBB, I, TII.get(X86::MOV16ri), DestReg).addImm(0);
+ break;
+ case X86::MOV32r0:
+ BuildMI(MBB, I, TII.get(X86::MOV32ri), DestReg).addImm(0);
+ break;
+ case X86::MOV64r0:
+ BuildMI(MBB, I, TII.get(X86::MOV64ri32), DestReg).addImm(0);
+ break;
+ default: {
+ MachineInstr *MI = Orig->clone();
+ MI->getOperand(0).setReg(DestReg);
+ MBB.insert(I, MI);
+ break;
+ }
+ }
+}
+
+static MachineInstr *FuseTwoAddrInst(unsigned Opcode,
+ SmallVector<MachineOperand,4> &MOs,
+ MachineInstr *MI, const TargetInstrInfo &TII) {
// Create the base instruction with the memory operand as the first part.
- MachineInstrBuilder MIB = addFrameReference(BuildMI(TII.get(Opcode)),
- FrameIndex);
+ MachineInstr *NewMI = new MachineInstr(TII.get(Opcode), true);
+ MachineInstrBuilder MIB(NewMI);
+ unsigned NumAddrOps = MOs.size();
+ for (unsigned i = 0; i != NumAddrOps; ++i)
+ MIB = X86InstrAddOperand(MIB, MOs[i]);
+ if (NumAddrOps < 4) // FrameIndex only
+ MIB.addImm(1).addReg(0).addImm(0);
// Loop over the rest of the ri operands, converting them over.
+ unsigned NumOps = TII.getNumOperands(MI->getOpcode())-2;
for (unsigned i = 0; i != NumOps; ++i) {
MachineOperand &MO = MI->getOperand(i+2);
- if (MO.isReg())
- MIB = MIB.addReg(MO.getReg(), false, MO.isImplicit());
- else if (MO.isImm())
- MIB = MIB.addImm(MO.getImm());
- else if (MO.isGlobalAddress())
- MIB = MIB.addGlobalAddress(MO.getGlobal(), MO.getOffset());
- else if (MO.isJumpTableIndex())
- MIB = MIB.addJumpTableIndex(MO.getJumpTableIndex());
- else if (MO.isExternalSymbol())
- MIB = MIB.addExternalSymbol(MO.getSymbolName());
- else
- assert(0 && "Unknown operand type!");
+ MIB = X86InstrAddOperand(MIB, MO);
+ }
+ for (unsigned i = NumOps+2, e = MI->getNumOperands(); i != e; ++i) {
+ MachineOperand &MO = MI->getOperand(i);
+ MIB = X86InstrAddOperand(MIB, MO);
}
return MIB;
}
static MachineInstr *FuseInst(unsigned Opcode, unsigned OpNo,
- unsigned FrameIndex, MachineInstr *MI,
- const TargetInstrInfo &TII) {
- MachineInstrBuilder MIB = BuildMI(TII.get(Opcode));
+ SmallVector<MachineOperand,4> &MOs,
+ MachineInstr *MI, const TargetInstrInfo &TII) {
+ MachineInstr *NewMI = new MachineInstr(TII.get(Opcode), true);
+ MachineInstrBuilder MIB(NewMI);
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
MachineOperand &MO = MI->getOperand(i);
if (i == OpNo) {
- assert(MO.isReg() && "Expected to fold into reg operand!");
- MIB = addFrameReference(MIB, FrameIndex);
- } else if (MO.isReg())
- MIB = MIB.addReg(MO.getReg(), MO.isDef(), MO.isImplicit());
- else if (MO.isImm())
- MIB = MIB.addImm(MO.getImm());
- else if (MO.isGlobalAddress())
- MIB = MIB.addGlobalAddress(MO.getGlobal(), MO.getOffset());
- else if (MO.isJumpTableIndex())
- MIB = MIB.addJumpTableIndex(MO.getJumpTableIndex());
- else if (MO.isExternalSymbol())
- MIB = MIB.addExternalSymbol(MO.getSymbolName());
- else
- assert(0 && "Unknown operand for FuseInst!");
+ assert(MO.isRegister() && "Expected to fold into reg operand!");
+ unsigned NumAddrOps = MOs.size();
+ for (unsigned i = 0; i != NumAddrOps; ++i)
+ MIB = X86InstrAddOperand(MIB, MOs[i]);
+ if (NumAddrOps < 4) // FrameIndex only
+ MIB.addImm(1).addReg(0).addImm(0);
+ } else {
+ MIB = X86InstrAddOperand(MIB, MO);
+ }
}
return MIB;
}
-static MachineInstr *MakeM0Inst(const TargetInstrInfo &TII,
- unsigned Opcode, unsigned FrameIndex,
+static MachineInstr *MakeM0Inst(const TargetInstrInfo &TII, unsigned Opcode,
+ SmallVector<MachineOperand,4> &MOs,
MachineInstr *MI) {
- return addFrameReference(BuildMI(TII.get(Opcode)), FrameIndex).addImm(0);
-}
-
-
-//===----------------------------------------------------------------------===//
-// Efficient Lookup Table Support
-//===----------------------------------------------------------------------===//
-
-namespace {
- /// TableEntry - Maps the 'from' opcode to a fused form of the 'to' opcode.
- ///
- struct TableEntry {
- unsigned from; // Original opcode.
- unsigned to; // New opcode.
-
- // less operators used by STL search.
- bool operator<(const TableEntry &TE) const { return from < TE.from; }
- friend bool operator<(const TableEntry &TE, unsigned V) {
- return TE.from < V;
- }
- friend bool operator<(unsigned V, const TableEntry &TE) {
- return V < TE.from;
- }
- };
-}
-
-/// TableIsSorted - Return true if the table is in 'from' opcode order.
-///
-static bool TableIsSorted(const TableEntry *Table, unsigned NumEntries) {
- for (unsigned i = 1; i != NumEntries; ++i)
- if (!(Table[i-1] < Table[i])) {
- cerr << "Entries out of order " << Table[i-1].from
- << " " << Table[i].from << "\n";
- return false;
- }
- return true;
-}
+ MachineInstrBuilder MIB = BuildMI(TII.get(Opcode));
-/// TableLookup - Return the table entry matching the specified opcode.
-/// Otherwise return NULL.
-static const TableEntry *TableLookup(const TableEntry *Table, unsigned N,
- unsigned Opcode) {
- const TableEntry *I = std::lower_bound(Table, Table+N, Opcode);
- if (I != Table+N && I->from == Opcode)
- return I;
- return NULL;
+ unsigned NumAddrOps = MOs.size();
+ for (unsigned i = 0; i != NumAddrOps; ++i)
+ MIB = X86InstrAddOperand(MIB, MOs[i]);
+ if (NumAddrOps < 4) // FrameIndex only
+ MIB.addImm(1).addReg(0).addImm(0);
+ return MIB.addImm(0);
}
-#define ARRAY_SIZE(TABLE) \
- (sizeof(TABLE)/sizeof(TABLE[0]))
-
-#ifdef NDEBUG
-#define ASSERT_SORTED(TABLE)
-#else
-#define ASSERT_SORTED(TABLE) \
- { static bool TABLE##Checked = false; \
- if (!TABLE##Checked) { \
- assert(TableIsSorted(TABLE, ARRAY_SIZE(TABLE)) && \
- "All lookup tables must be sorted for efficient access!"); \
- TABLE##Checked = true; \
- } \
- }
-#endif
-
-
-MachineInstr* X86RegisterInfo::foldMemoryOperand(MachineInstr *MI,
- unsigned i,
- int FrameIndex) const {
- // Check switch flag
- if (NoFusing) return NULL;
-
- // Table (and size) to search
- const TableEntry *OpcodeTablePtr = NULL;
- unsigned OpcodeTableSize = 0;
+MachineInstr*
+X86RegisterInfo::foldMemoryOperand(MachineInstr *MI, unsigned i,
+ SmallVector<MachineOperand,4> &MOs) const {
+ const DenseMap<unsigned*, unsigned> *OpcodeTablePtr = NULL;
bool isTwoAddrFold = false;
unsigned NumOps = TII.getNumOperands(MI->getOpcode());
bool isTwoAddr = NumOps > 1 &&
// instruction is different than folding it other places. It requires
// replacing the *two* registers with the memory location.
if (isTwoAddr && NumOps >= 2 && i < 2 &&
- MI->getOperand(0).isReg() &&
- MI->getOperand(1).isReg() &&
- MI->getOperand(0).getReg() == MI->getOperand(1).getReg()) {
- static const TableEntry OpcodeTable[] = {
- { X86::ADC32ri, X86::ADC32mi },
- { X86::ADC32ri8, X86::ADC32mi8 },
- { X86::ADC32rr, X86::ADC32mr },
- { X86::ADC64ri32, X86::ADC64mi32 },
- { X86::ADC64ri8, X86::ADC64mi8 },
- { X86::ADC64rr, X86::ADC64mr },
- { X86::ADD16ri, X86::ADD16mi },
- { X86::ADD16ri8, X86::ADD16mi8 },
- { X86::ADD16rr, X86::ADD16mr },
- { X86::ADD32ri, X86::ADD32mi },
- { X86::ADD32ri8, X86::ADD32mi8 },
- { X86::ADD32rr, X86::ADD32mr },
- { X86::ADD64ri32, X86::ADD64mi32 },
- { X86::ADD64ri8, X86::ADD64mi8 },
- { X86::ADD64rr, X86::ADD64mr },
- { X86::ADD8ri, X86::ADD8mi },
- { X86::ADD8rr, X86::ADD8mr },
- { X86::AND16ri, X86::AND16mi },
- { X86::AND16ri8, X86::AND16mi8 },
- { X86::AND16rr, X86::AND16mr },
- { X86::AND32ri, X86::AND32mi },
- { X86::AND32ri8, X86::AND32mi8 },
- { X86::AND32rr, X86::AND32mr },
- { X86::AND64ri32, X86::AND64mi32 },
- { X86::AND64ri8, X86::AND64mi8 },
- { X86::AND64rr, X86::AND64mr },
- { X86::AND8ri, X86::AND8mi },
- { X86::AND8rr, X86::AND8mr },
- { X86::DEC16r, X86::DEC16m },
- { X86::DEC32r, X86::DEC32m },
- { X86::DEC64_16r, X86::DEC16m },
- { X86::DEC64_32r, X86::DEC32m },
- { X86::DEC64r, X86::DEC64m },
- { X86::DEC8r, X86::DEC8m },
- { X86::INC16r, X86::INC16m },
- { X86::INC32r, X86::INC32m },
- { X86::INC64_16r, X86::INC16m },
- { X86::INC64_32r, X86::INC32m },
- { X86::INC64r, X86::INC64m },
- { X86::INC8r, X86::INC8m },
- { X86::NEG16r, X86::NEG16m },
- { X86::NEG32r, X86::NEG32m },
- { X86::NEG64r, X86::NEG64m },
- { X86::NEG8r, X86::NEG8m },
- { X86::NOT16r, X86::NOT16m },
- { X86::NOT32r, X86::NOT32m },
- { X86::NOT64r, X86::NOT64m },
- { X86::NOT8r, X86::NOT8m },
- { X86::OR16ri, X86::OR16mi },
- { X86::OR16ri8, X86::OR16mi8 },
- { X86::OR16rr, X86::OR16mr },
- { X86::OR32ri, X86::OR32mi },
- { X86::OR32ri8, X86::OR32mi8 },
- { X86::OR32rr, X86::OR32mr },
- { X86::OR64ri32, X86::OR64mi32 },
- { X86::OR64ri8, X86::OR64mi8 },
- { X86::OR64rr, X86::OR64mr },
- { X86::OR8ri, X86::OR8mi },
- { X86::OR8rr, X86::OR8mr },
- { X86::ROL16r1, X86::ROL16m1 },
- { X86::ROL16rCL, X86::ROL16mCL },
- { X86::ROL16ri, X86::ROL16mi },
- { X86::ROL32r1, X86::ROL32m1 },
- { X86::ROL32rCL, X86::ROL32mCL },
- { X86::ROL32ri, X86::ROL32mi },
- { X86::ROL64r1, X86::ROL64m1 },
- { X86::ROL64rCL, X86::ROL64mCL },
- { X86::ROL64ri, X86::ROL64mi },
- { X86::ROL8r1, X86::ROL8m1 },
- { X86::ROL8rCL, X86::ROL8mCL },
- { X86::ROL8ri, X86::ROL8mi },
- { X86::ROR16r1, X86::ROR16m1 },
- { X86::ROR16rCL, X86::ROR16mCL },
- { X86::ROR16ri, X86::ROR16mi },
- { X86::ROR32r1, X86::ROR32m1 },
- { X86::ROR32rCL, X86::ROR32mCL },
- { X86::ROR32ri, X86::ROR32mi },
- { X86::ROR64r1, X86::ROR64m1 },
- { X86::ROR64rCL, X86::ROR64mCL },
- { X86::ROR64ri, X86::ROR64mi },
- { X86::ROR8r1, X86::ROR8m1 },
- { X86::ROR8rCL, X86::ROR8mCL },
- { X86::ROR8ri, X86::ROR8mi },
- { X86::SAR16r1, X86::SAR16m1 },
- { X86::SAR16rCL, X86::SAR16mCL },
- { X86::SAR16ri, X86::SAR16mi },
- { X86::SAR32r1, X86::SAR32m1 },
- { X86::SAR32rCL, X86::SAR32mCL },
- { X86::SAR32ri, X86::SAR32mi },
- { X86::SAR64r1, X86::SAR64m1 },
- { X86::SAR64rCL, X86::SAR64mCL },
- { X86::SAR64ri, X86::SAR64mi },
- { X86::SAR8r1, X86::SAR8m1 },
- { X86::SAR8rCL, X86::SAR8mCL },
- { X86::SAR8ri, X86::SAR8mi },
- { X86::SBB32ri, X86::SBB32mi },
- { X86::SBB32ri8, X86::SBB32mi8 },
- { X86::SBB32rr, X86::SBB32mr },
- { X86::SBB64ri32, X86::SBB64mi32 },
- { X86::SBB64ri8, X86::SBB64mi8 },
- { X86::SBB64rr, X86::SBB64mr },
- { X86::SHL16r1, X86::SHL16m1 },
- { X86::SHL16rCL, X86::SHL16mCL },
- { X86::SHL16ri, X86::SHL16mi },
- { X86::SHL32r1, X86::SHL32m1 },
- { X86::SHL32rCL, X86::SHL32mCL },
- { X86::SHL32ri, X86::SHL32mi },
- { X86::SHL64r1, X86::SHL64m1 },
- { X86::SHL64rCL, X86::SHL64mCL },
- { X86::SHL64ri, X86::SHL64mi },
- { X86::SHL8r1, X86::SHL8m1 },
- { X86::SHL8rCL, X86::SHL8mCL },
- { X86::SHL8ri, X86::SHL8mi },
- { X86::SHLD16rrCL, X86::SHLD16mrCL },
- { X86::SHLD16rri8, X86::SHLD16mri8 },
- { X86::SHLD32rrCL, X86::SHLD32mrCL },
- { X86::SHLD32rri8, X86::SHLD32mri8 },
- { X86::SHLD64rrCL, X86::SHLD64mrCL },
- { X86::SHLD64rri8, X86::SHLD64mri8 },
- { X86::SHR16r1, X86::SHR16m1 },
- { X86::SHR16rCL, X86::SHR16mCL },
- { X86::SHR16ri, X86::SHR16mi },
- { X86::SHR32r1, X86::SHR32m1 },
- { X86::SHR32rCL, X86::SHR32mCL },
- { X86::SHR32ri, X86::SHR32mi },
- { X86::SHR64r1, X86::SHR64m1 },
- { X86::SHR64rCL, X86::SHR64mCL },
- { X86::SHR64ri, X86::SHR64mi },
- { X86::SHR8r1, X86::SHR8m1 },
- { X86::SHR8rCL, X86::SHR8mCL },
- { X86::SHR8ri, X86::SHR8mi },
- { X86::SHRD16rrCL, X86::SHRD16mrCL },
- { X86::SHRD16rri8, X86::SHRD16mri8 },
- { X86::SHRD32rrCL, X86::SHRD32mrCL },
- { X86::SHRD32rri8, X86::SHRD32mri8 },
- { X86::SHRD64rrCL, X86::SHRD64mrCL },
- { X86::SHRD64rri8, X86::SHRD64mri8 },
- { X86::SUB16ri, X86::SUB16mi },
- { X86::SUB16ri8, X86::SUB16mi8 },
- { X86::SUB16rr, X86::SUB16mr },
- { X86::SUB32ri, X86::SUB32mi },
- { X86::SUB32ri8, X86::SUB32mi8 },
- { X86::SUB32rr, X86::SUB32mr },
- { X86::SUB64ri32, X86::SUB64mi32 },
- { X86::SUB64ri8, X86::SUB64mi8 },
- { X86::SUB64rr, X86::SUB64mr },
- { X86::SUB8ri, X86::SUB8mi },
- { X86::SUB8rr, X86::SUB8mr },
- { X86::XOR16ri, X86::XOR16mi },
- { X86::XOR16ri8, X86::XOR16mi8 },
- { X86::XOR16rr, X86::XOR16mr },
- { X86::XOR32ri, X86::XOR32mi },
- { X86::XOR32ri8, X86::XOR32mi8 },
- { X86::XOR32rr, X86::XOR32mr },
- { X86::XOR64ri32, X86::XOR64mi32 },
- { X86::XOR64ri8, X86::XOR64mi8 },
- { X86::XOR64rr, X86::XOR64mr },
- { X86::XOR8ri, X86::XOR8mi },
- { X86::XOR8rr, X86::XOR8mr }
- };
- ASSERT_SORTED(OpcodeTable);
- OpcodeTablePtr = OpcodeTable;
- OpcodeTableSize = ARRAY_SIZE(OpcodeTable);
+ MI->getOperand(0).isRegister() &&
+ MI->getOperand(1).isRegister() &&
+ MI->getOperand(0).getReg() == MI->getOperand(1).getReg()) {
+ OpcodeTablePtr = &RegOp2MemOpTable2Addr;
isTwoAddrFold = true;
} else if (i == 0) { // If operand 0
if (MI->getOpcode() == X86::MOV16r0)
- NewMI = MakeM0Inst(TII, X86::MOV16mi, FrameIndex, MI);
+ NewMI = MakeM0Inst(TII, X86::MOV16mi, MOs, MI);
else if (MI->getOpcode() == X86::MOV32r0)
- NewMI = MakeM0Inst(TII, X86::MOV32mi, FrameIndex, MI);
+ NewMI = MakeM0Inst(TII, X86::MOV32mi, MOs, MI);
else if (MI->getOpcode() == X86::MOV64r0)
- NewMI = MakeM0Inst(TII, X86::MOV64mi32, FrameIndex, MI);
+ NewMI = MakeM0Inst(TII, X86::MOV64mi32, MOs, MI);
else if (MI->getOpcode() == X86::MOV8r0)
- NewMI = MakeM0Inst(TII, X86::MOV8mi, FrameIndex, MI);
+ NewMI = MakeM0Inst(TII, X86::MOV8mi, MOs, MI);
if (NewMI) {
NewMI->copyKillDeadInfo(MI);
return NewMI;
}
- static const TableEntry OpcodeTable[] = {
- { X86::CMP16ri, X86::CMP16mi },
- { X86::CMP16ri8, X86::CMP16mi8 },
- { X86::CMP32ri, X86::CMP32mi },
- { X86::CMP32ri8, X86::CMP32mi8 },
- { X86::CMP8ri, X86::CMP8mi },
- { X86::DIV16r, X86::DIV16m },
- { X86::DIV32r, X86::DIV32m },
- { X86::DIV64r, X86::DIV64m },
- { X86::DIV8r, X86::DIV8m },
- { X86::FsMOVAPDrr, X86::MOVSDmr },
- { X86::FsMOVAPSrr, X86::MOVSSmr },
- { X86::IDIV16r, X86::IDIV16m },
- { X86::IDIV32r, X86::IDIV32m },
- { X86::IDIV64r, X86::IDIV64m },
- { X86::IDIV8r, X86::IDIV8m },
- { X86::IMUL16r, X86::IMUL16m },
- { X86::IMUL32r, X86::IMUL32m },
- { X86::IMUL64r, X86::IMUL64m },
- { X86::IMUL8r, X86::IMUL8m },
- { X86::MOV16ri, X86::MOV16mi },
- { X86::MOV16rr, X86::MOV16mr },
- { X86::MOV32ri, X86::MOV32mi },
- { X86::MOV32rr, X86::MOV32mr },
- { X86::MOV64ri32, X86::MOV64mi32 },
- { X86::MOV64rr, X86::MOV64mr },
- { X86::MOV8ri, X86::MOV8mi },
- { X86::MOV8rr, X86::MOV8mr },
- { X86::MOVAPDrr, X86::MOVAPDmr },
- { X86::MOVAPSrr, X86::MOVAPSmr },
- { X86::MOVPDI2DIrr, X86::MOVPDI2DImr },
- { X86::MOVPQIto64rr,X86::MOVPQIto64mr },
- { X86::MOVPS2SSrr, X86::MOVPS2SSmr },
- { X86::MOVSDrr, X86::MOVSDmr },
- { X86::MOVSDto64rr, X86::MOVSDto64mr },
- { X86::MOVSS2DIrr, X86::MOVSS2DImr },
- { X86::MOVSSrr, X86::MOVSSmr },
- { X86::MOVUPDrr, X86::MOVUPDmr },
- { X86::MOVUPSrr, X86::MOVUPSmr },
- { X86::MUL16r, X86::MUL16m },
- { X86::MUL32r, X86::MUL32m },
- { X86::MUL64r, X86::MUL64m },
- { X86::MUL8r, X86::MUL8m },
- { X86::SETAEr, X86::SETAEm },
- { X86::SETAr, X86::SETAm },
- { X86::SETBEr, X86::SETBEm },
- { X86::SETBr, X86::SETBm },
- { X86::SETEr, X86::SETEm },
- { X86::SETGEr, X86::SETGEm },
- { X86::SETGr, X86::SETGm },
- { X86::SETLEr, X86::SETLEm },
- { X86::SETLr, X86::SETLm },
- { X86::SETNEr, X86::SETNEm },
- { X86::SETNPr, X86::SETNPm },
- { X86::SETNSr, X86::SETNSm },
- { X86::SETPr, X86::SETPm },
- { X86::SETSr, X86::SETSm },
- { X86::TEST16ri, X86::TEST16mi },
- { X86::TEST32ri, X86::TEST32mi },
- { X86::TEST64ri32, X86::TEST64mi32 },
- { X86::TEST8ri, X86::TEST8mi },
- { X86::XCHG16rr, X86::XCHG16mr },
- { X86::XCHG32rr, X86::XCHG32mr },
- { X86::XCHG64rr, X86::XCHG64mr },
- { X86::XCHG8rr, X86::XCHG8mr }
- };
- ASSERT_SORTED(OpcodeTable);
- OpcodeTablePtr = OpcodeTable;
- OpcodeTableSize = ARRAY_SIZE(OpcodeTable);
+ OpcodeTablePtr = &RegOp2MemOpTable0;
} else if (i == 1) {
- static const TableEntry OpcodeTable[] = {
- { X86::CMP16rr, X86::CMP16rm },
- { X86::CMP32rr, X86::CMP32rm },
- { X86::CMP64ri32, X86::CMP64mi32 },
- { X86::CMP64ri8, X86::CMP64mi8 },
- { X86::CMP64rr, X86::CMP64rm },
- { X86::CMP8rr, X86::CMP8rm },
- { X86::CMPPDrri, X86::CMPPDrmi },
- { X86::CMPPSrri, X86::CMPPSrmi },
- { X86::CMPSDrr, X86::CMPSDrm },
- { X86::CMPSSrr, X86::CMPSSrm },
- { X86::CVTSD2SSrr, X86::CVTSD2SSrm },
- { X86::CVTSI2SD64rr, X86::CVTSI2SD64rm },
- { X86::CVTSI2SDrr, X86::CVTSI2SDrm },
- { X86::CVTSI2SS64rr, X86::CVTSI2SS64rm },
- { X86::CVTSI2SSrr, X86::CVTSI2SSrm },
- { X86::CVTSS2SDrr, X86::CVTSS2SDrm },
- { X86::CVTTSD2SI64rr, X86::CVTTSD2SI64rm },
- { X86::CVTTSD2SIrr, X86::CVTTSD2SIrm },
- { X86::CVTTSS2SI64rr, X86::CVTTSS2SI64rm },
- { X86::CVTTSS2SIrr, X86::CVTTSS2SIrm },
- { X86::FsMOVAPDrr, X86::MOVSDrm },
- { X86::FsMOVAPSrr, X86::MOVSSrm },
- { X86::IMUL16rri, X86::IMUL16rmi },
- { X86::IMUL16rri8, X86::IMUL16rmi8 },
- { X86::IMUL32rri, X86::IMUL32rmi },
- { X86::IMUL32rri8, X86::IMUL32rmi8 },
- { X86::IMUL64rr, X86::IMUL64rm },
- { X86::IMUL64rri32, X86::IMUL64rmi32 },
- { X86::IMUL64rri8, X86::IMUL64rmi8 },
- { X86::Int_CMPSDrr, X86::Int_CMPSDrm },
- { X86::Int_CMPSSrr, X86::Int_CMPSSrm },
- { X86::Int_COMISDrr, X86::Int_COMISDrm },
- { X86::Int_COMISSrr, X86::Int_COMISSrm },
- { X86::Int_CVTDQ2PDrr, X86::Int_CVTDQ2PDrm },
- { X86::Int_CVTDQ2PSrr, X86::Int_CVTDQ2PSrm },
- { X86::Int_CVTPD2DQrr, X86::Int_CVTPD2DQrm },
- { X86::Int_CVTPD2PSrr, X86::Int_CVTPD2PSrm },
- { X86::Int_CVTPS2DQrr, X86::Int_CVTPS2DQrm },
- { X86::Int_CVTPS2PDrr, X86::Int_CVTPS2PDrm },
- { X86::Int_CVTSD2SI64rr,X86::Int_CVTSD2SI64rm },
- { X86::Int_CVTSD2SIrr, X86::Int_CVTSD2SIrm },
- { X86::Int_CVTSD2SSrr, X86::Int_CVTSD2SSrm },
- { X86::Int_CVTSI2SD64rr,X86::Int_CVTSI2SD64rm },
- { X86::Int_CVTSI2SDrr, X86::Int_CVTSI2SDrm },
- { X86::Int_CVTSI2SS64rr,X86::Int_CVTSI2SS64rm },
- { X86::Int_CVTSI2SSrr, X86::Int_CVTSI2SSrm },
- { X86::Int_CVTSS2SDrr, X86::Int_CVTSS2SDrm },
- { X86::Int_CVTSS2SI64rr,X86::Int_CVTSS2SI64rm },
- { X86::Int_CVTSS2SIrr, X86::Int_CVTSS2SIrm },
- { X86::Int_CVTTPD2DQrr, X86::Int_CVTTPD2DQrm },
- { X86::Int_CVTTPS2DQrr, X86::Int_CVTTPS2DQrm },
- { X86::Int_CVTTSD2SI64rr,X86::Int_CVTTSD2SI64rm },
- { X86::Int_CVTTSD2SIrr, X86::Int_CVTTSD2SIrm },
- { X86::Int_CVTTSS2SI64rr,X86::Int_CVTTSS2SI64rm },
- { X86::Int_CVTTSS2SIrr, X86::Int_CVTTSS2SIrm },
- { X86::Int_UCOMISDrr, X86::Int_UCOMISDrm },
- { X86::Int_UCOMISSrr, X86::Int_UCOMISSrm },
- { X86::MOV16rr, X86::MOV16rm },
- { X86::MOV32rr, X86::MOV32rm },
- { X86::MOV64rr, X86::MOV64rm },
- { X86::MOV64toPQIrr, X86::MOV64toPQIrm },
- { X86::MOV64toSDrr, X86::MOV64toSDrm },
- { X86::MOV8rr, X86::MOV8rm },
- { X86::MOVAPDrr, X86::MOVAPDrm },
- { X86::MOVAPSrr, X86::MOVAPSrm },
- { X86::MOVDDUPrr, X86::MOVDDUPrm },
- { X86::MOVDI2PDIrr, X86::MOVDI2PDIrm },
- { X86::MOVDI2SSrr, X86::MOVDI2SSrm },
- { X86::MOVSD2PDrr, X86::MOVSD2PDrm },
- { X86::MOVSDrr, X86::MOVSDrm },
- { X86::MOVSHDUPrr, X86::MOVSHDUPrm },
- { X86::MOVSLDUPrr, X86::MOVSLDUPrm },
- { X86::MOVSS2PSrr, X86::MOVSS2PSrm },
- { X86::MOVSSrr, X86::MOVSSrm },
- { X86::MOVSX16rr8, X86::MOVSX16rm8 },
- { X86::MOVSX32rr16, X86::MOVSX32rm16 },
- { X86::MOVSX32rr8, X86::MOVSX32rm8 },
- { X86::MOVSX64rr16, X86::MOVSX64rm16 },
- { X86::MOVSX64rr32, X86::MOVSX64rm32 },
- { X86::MOVSX64rr8, X86::MOVSX64rm8 },
- { X86::MOVUPDrr, X86::MOVUPDrm },
- { X86::MOVUPSrr, X86::MOVUPSrm },
- { X86::MOVZX16rr8, X86::MOVZX16rm8 },
- { X86::MOVZX32rr16, X86::MOVZX32rm16 },
- { X86::MOVZX32rr8, X86::MOVZX32rm8 },
- { X86::MOVZX64rr16, X86::MOVZX64rm16 },
- { X86::MOVZX64rr8, X86::MOVZX64rm8 },
- { X86::PSHUFDri, X86::PSHUFDmi },
- { X86::PSHUFHWri, X86::PSHUFHWmi },
- { X86::PSHUFLWri, X86::PSHUFLWmi },
- { X86::PsMOVZX64rr32, X86::PsMOVZX64rm32 },
- { X86::TEST16rr, X86::TEST16rm },
- { X86::TEST32rr, X86::TEST32rm },
- { X86::TEST64rr, X86::TEST64rm },
- { X86::TEST8rr, X86::TEST8rm },
- // FIXME: TEST*rr EAX,EAX ---> CMP [mem], 0
- { X86::UCOMISDrr, X86::UCOMISDrm },
- { X86::UCOMISSrr, X86::UCOMISSrm },
- { X86::XCHG16rr, X86::XCHG16rm },
- { X86::XCHG32rr, X86::XCHG32rm },
- { X86::XCHG64rr, X86::XCHG64rm },
- { X86::XCHG8rr, X86::XCHG8rm }
- };
- ASSERT_SORTED(OpcodeTable);
- OpcodeTablePtr = OpcodeTable;
- OpcodeTableSize = ARRAY_SIZE(OpcodeTable);
+ OpcodeTablePtr = &RegOp2MemOpTable1;
} else if (i == 2) {
- static const TableEntry OpcodeTable[] = {
- { X86::ADC32rr, X86::ADC32rm },
- { X86::ADC64rr, X86::ADC64rm },
- { X86::ADD16rr, X86::ADD16rm },
- { X86::ADD32rr, X86::ADD32rm },
- { X86::ADD64rr, X86::ADD64rm },
- { X86::ADD8rr, X86::ADD8rm },
- { X86::ADDPDrr, X86::ADDPDrm },
- { X86::ADDPSrr, X86::ADDPSrm },
- { X86::ADDSDrr, X86::ADDSDrm },
- { X86::ADDSSrr, X86::ADDSSrm },
- { X86::ADDSUBPDrr, X86::ADDSUBPDrm },
- { X86::ADDSUBPSrr, X86::ADDSUBPSrm },
- { X86::AND16rr, X86::AND16rm },
- { X86::AND32rr, X86::AND32rm },
- { X86::AND64rr, X86::AND64rm },
- { X86::AND8rr, X86::AND8rm },
- { X86::ANDNPDrr, X86::ANDNPDrm },
- { X86::ANDNPSrr, X86::ANDNPSrm },
- { X86::ANDPDrr, X86::ANDPDrm },
- { X86::ANDPSrr, X86::ANDPSrm },
- { X86::CMOVA16rr, X86::CMOVA16rm },
- { X86::CMOVA32rr, X86::CMOVA32rm },
- { X86::CMOVA64rr, X86::CMOVA64rm },
- { X86::CMOVAE16rr, X86::CMOVAE16rm },
- { X86::CMOVAE32rr, X86::CMOVAE32rm },
- { X86::CMOVAE64rr, X86::CMOVAE64rm },
- { X86::CMOVB16rr, X86::CMOVB16rm },
- { X86::CMOVB32rr, X86::CMOVB32rm },
- { X86::CMOVB64rr, X86::CMOVB64rm },
- { X86::CMOVBE16rr, X86::CMOVBE16rm },
- { X86::CMOVBE32rr, X86::CMOVBE32rm },
- { X86::CMOVBE64rr, X86::CMOVBE64rm },
- { X86::CMOVE16rr, X86::CMOVE16rm },
- { X86::CMOVE32rr, X86::CMOVE32rm },
- { X86::CMOVE64rr, X86::CMOVE64rm },
- { X86::CMOVG16rr, X86::CMOVG16rm },
- { X86::CMOVG32rr, X86::CMOVG32rm },
- { X86::CMOVG64rr, X86::CMOVG64rm },
- { X86::CMOVGE16rr, X86::CMOVGE16rm },
- { X86::CMOVGE32rr, X86::CMOVGE32rm },
- { X86::CMOVGE64rr, X86::CMOVGE64rm },
- { X86::CMOVL16rr, X86::CMOVL16rm },
- { X86::CMOVL32rr, X86::CMOVL32rm },
- { X86::CMOVL64rr, X86::CMOVL64rm },
- { X86::CMOVLE16rr, X86::CMOVLE16rm },
- { X86::CMOVLE32rr, X86::CMOVLE32rm },
- { X86::CMOVLE64rr, X86::CMOVLE64rm },
- { X86::CMOVNE16rr, X86::CMOVNE16rm },
- { X86::CMOVNE32rr, X86::CMOVNE32rm },
- { X86::CMOVNE64rr, X86::CMOVNE64rm },
- { X86::CMOVNP16rr, X86::CMOVNP16rm },
- { X86::CMOVNP32rr, X86::CMOVNP32rm },
- { X86::CMOVNP64rr, X86::CMOVNP64rm },
- { X86::CMOVNS16rr, X86::CMOVNS16rm },
- { X86::CMOVNS32rr, X86::CMOVNS32rm },
- { X86::CMOVNS64rr, X86::CMOVNS64rm },
- { X86::CMOVP16rr, X86::CMOVP16rm },
- { X86::CMOVP32rr, X86::CMOVP32rm },
- { X86::CMOVP64rr, X86::CMOVP64rm },
- { X86::CMOVS16rr, X86::CMOVS16rm },
- { X86::CMOVS32rr, X86::CMOVS32rm },
- { X86::CMOVS64rr, X86::CMOVS64rm },
- { X86::DIVPDrr, X86::DIVPDrm },
- { X86::DIVPSrr, X86::DIVPSrm },
- { X86::DIVSDrr, X86::DIVSDrm },
- { X86::DIVSSrr, X86::DIVSSrm },
- { X86::HADDPDrr, X86::HADDPDrm },
- { X86::HADDPSrr, X86::HADDPSrm },
- { X86::HSUBPDrr, X86::HSUBPDrm },
- { X86::HSUBPSrr, X86::HSUBPSrm },
- { X86::IMUL16rr, X86::IMUL16rm },
- { X86::IMUL32rr, X86::IMUL32rm },
- { X86::MAXPDrr, X86::MAXPDrm },
- { X86::MAXPSrr, X86::MAXPSrm },
- { X86::MINPDrr, X86::MINPDrm },
- { X86::MINPSrr, X86::MINPSrm },
- { X86::MULPDrr, X86::MULPDrm },
- { X86::MULPSrr, X86::MULPSrm },
- { X86::MULSDrr, X86::MULSDrm },
- { X86::MULSSrr, X86::MULSSrm },
- { X86::OR16rr, X86::OR16rm },
- { X86::OR32rr, X86::OR32rm },
- { X86::OR64rr, X86::OR64rm },
- { X86::OR8rr, X86::OR8rm },
- { X86::ORPDrr, X86::ORPDrm },
- { X86::ORPSrr, X86::ORPSrm },
- { X86::PACKSSDWrr, X86::PACKSSDWrm },
- { X86::PACKSSWBrr, X86::PACKSSWBrm },
- { X86::PACKUSWBrr, X86::PACKUSWBrm },
- { X86::PADDBrr, X86::PADDBrm },
- { X86::PADDDrr, X86::PADDDrm },
- { X86::PADDSBrr, X86::PADDSBrm },
- { X86::PADDSWrr, X86::PADDSWrm },
- { X86::PADDWrr, X86::PADDWrm },
- { X86::PANDNrr, X86::PANDNrm },
- { X86::PANDrr, X86::PANDrm },
- { X86::PAVGBrr, X86::PAVGBrm },
- { X86::PAVGWrr, X86::PAVGWrm },
- { X86::PCMPEQBrr, X86::PCMPEQBrm },
- { X86::PCMPEQDrr, X86::PCMPEQDrm },
- { X86::PCMPEQWrr, X86::PCMPEQWrm },
- { X86::PCMPGTBrr, X86::PCMPGTBrm },
- { X86::PCMPGTDrr, X86::PCMPGTDrm },
- { X86::PCMPGTWrr, X86::PCMPGTWrm },
- { X86::PINSRWrri, X86::PINSRWrmi },
- { X86::PMADDWDrr, X86::PMADDWDrm },
- { X86::PMAXSWrr, X86::PMAXSWrm },
- { X86::PMAXUBrr, X86::PMAXUBrm },
- { X86::PMINSWrr, X86::PMINSWrm },
- { X86::PMINUBrr, X86::PMINUBrm },
- { X86::PMULHUWrr, X86::PMULHUWrm },
- { X86::PMULHWrr, X86::PMULHWrm },
- { X86::PMULLWrr, X86::PMULLWrm },
- { X86::PMULUDQrr, X86::PMULUDQrm },
- { X86::PORrr, X86::PORrm },
- { X86::PSADBWrr, X86::PSADBWrm },
- { X86::PSLLDrr, X86::PSLLDrm },
- { X86::PSLLQrr, X86::PSLLQrm },
- { X86::PSLLWrr, X86::PSLLWrm },
- { X86::PSRADrr, X86::PSRADrm },
- { X86::PSRAWrr, X86::PSRAWrm },
- { X86::PSRLDrr, X86::PSRLDrm },
- { X86::PSRLQrr, X86::PSRLQrm },
- { X86::PSRLWrr, X86::PSRLWrm },
- { X86::PSUBBrr, X86::PSUBBrm },
- { X86::PSUBDrr, X86::PSUBDrm },
- { X86::PSUBSBrr, X86::PSUBSBrm },
- { X86::PSUBSWrr, X86::PSUBSWrm },
- { X86::PSUBWrr, X86::PSUBWrm },
- { X86::PUNPCKHBWrr, X86::PUNPCKHBWrm },
- { X86::PUNPCKHDQrr, X86::PUNPCKHDQrm },
- { X86::PUNPCKHQDQrr, X86::PUNPCKHQDQrm },
- { X86::PUNPCKHWDrr, X86::PUNPCKHWDrm },
- { X86::PUNPCKLBWrr, X86::PUNPCKLBWrm },
- { X86::PUNPCKLDQrr, X86::PUNPCKLDQrm },
- { X86::PUNPCKLQDQrr, X86::PUNPCKLQDQrm },
- { X86::PUNPCKLWDrr, X86::PUNPCKLWDrm },
- { X86::PXORrr, X86::PXORrm },
- { X86::RCPPSr, X86::RCPPSm },
- { X86::RSQRTPSr, X86::RSQRTPSm },
- { X86::SBB32rr, X86::SBB32rm },
- { X86::SBB64rr, X86::SBB64rm },
- { X86::SHUFPDrri, X86::SHUFPDrmi },
- { X86::SHUFPSrri, X86::SHUFPSrmi },
- { X86::SQRTPDr, X86::SQRTPDm },
- { X86::SQRTPSr, X86::SQRTPSm },
- { X86::SQRTSDr, X86::SQRTSDm },
- { X86::SQRTSSr, X86::SQRTSSm },
- { X86::SUB16rr, X86::SUB16rm },
- { X86::SUB32rr, X86::SUB32rm },
- { X86::SUB64rr, X86::SUB64rm },
- { X86::SUB8rr, X86::SUB8rm },
- { X86::SUBPDrr, X86::SUBPDrm },
- { X86::SUBPSrr, X86::SUBPSrm },
- { X86::SUBSDrr, X86::SUBSDrm },
- { X86::SUBSSrr, X86::SUBSSrm },
- // FIXME: TEST*rr -> swapped operand of TEST*mr.
- { X86::UNPCKHPDrr, X86::UNPCKHPDrm },
- { X86::UNPCKHPSrr, X86::UNPCKHPSrm },
- { X86::UNPCKLPDrr, X86::UNPCKLPDrm },
- { X86::UNPCKLPSrr, X86::UNPCKLPSrm },
- { X86::XOR16rr, X86::XOR16rm },
- { X86::XOR32rr, X86::XOR32rm },
- { X86::XOR64rr, X86::XOR64rm },
- { X86::XOR8rr, X86::XOR8rm },
- { X86::XORPDrr, X86::XORPDrm },
- { X86::XORPSrr, X86::XORPSrm }
- };
- ASSERT_SORTED(OpcodeTable);
- OpcodeTablePtr = OpcodeTable;
- OpcodeTableSize = ARRAY_SIZE(OpcodeTable);
+ OpcodeTablePtr = &RegOp2MemOpTable2;
}
// If table selected...
if (OpcodeTablePtr) {
// Find the Opcode to fuse
- unsigned fromOpcode = MI->getOpcode();
- // Lookup fromOpcode in table
- if (const TableEntry *Entry = TableLookup(OpcodeTablePtr, OpcodeTableSize,
- fromOpcode)) {
+ DenseMap<unsigned*, unsigned>::iterator I =
+ OpcodeTablePtr->find((unsigned*)MI->getOpcode());
+ if (I != OpcodeTablePtr->end()) {
if (isTwoAddrFold)
- NewMI = FuseTwoAddrInst(Entry->to, FrameIndex, MI, TII);
+ NewMI = FuseTwoAddrInst(I->second, MOs, MI, TII);
else
- NewMI = FuseInst(Entry->to, i, FrameIndex, MI, TII);
+ NewMI = FuseInst(I->second, i, MOs, MI, TII);
NewMI->copyKillDeadInfo(MI);
return NewMI;
}
}
-const unsigned *X86RegisterInfo::getCalleeSavedRegs() const {
+MachineInstr* X86RegisterInfo::foldMemoryOperand(MachineInstr *MI, unsigned OpNum,
+ int FrameIndex) const {
+ // Check switch flag
+ if (NoFusing) return NULL;
+ SmallVector<MachineOperand,4> MOs;
+ MOs.push_back(MachineOperand::CreateFrameIndex(FrameIndex));
+ return foldMemoryOperand(MI, OpNum, MOs);
+}
+
+MachineInstr* X86RegisterInfo::foldMemoryOperand(MachineInstr *MI, unsigned OpNum,
+ MachineInstr *LoadMI) const {
+ // Check switch flag
+ if (NoFusing) return NULL;
+ SmallVector<MachineOperand,4> MOs;
+ unsigned NumOps = TII.getNumOperands(LoadMI->getOpcode());
+ for (unsigned i = NumOps - 4; i != NumOps; ++i)
+ MOs.push_back(LoadMI->getOperand(i));
+ return foldMemoryOperand(MI, OpNum, MOs);
+}
+
+unsigned X86RegisterInfo::getOpcodeAfterMemoryFold(unsigned Opc,
+ unsigned OpNum) const {
+ // Check switch flag
+ if (NoFusing) return 0;
+ const DenseMap<unsigned*, unsigned> *OpcodeTablePtr = NULL;
+ unsigned NumOps = TII.getNumOperands(Opc);
+ bool isTwoAddr = NumOps > 1 &&
+ TII.getOperandConstraint(Opc, 1, TOI::TIED_TO) != -1;
+
+ // Folding a memory location into the two-address part of a two-address
+ // instruction is different than folding it other places. It requires
+ // replacing the *two* registers with the memory location.
+ if (isTwoAddr && NumOps >= 2 && OpNum < 2) {
+ OpcodeTablePtr = &RegOp2MemOpTable2Addr;
+ } else if (OpNum == 0) { // If operand 0
+ switch (Opc) {
+ case X86::MOV16r0:
+ return X86::MOV16mi;
+ case X86::MOV32r0:
+ return X86::MOV32mi;
+ case X86::MOV64r0:
+ return X86::MOV64mi32;
+ case X86::MOV8r0:
+ return X86::MOV8mi;
+ default: break;
+ }
+ OpcodeTablePtr = &RegOp2MemOpTable0;
+ } else if (OpNum == 1) {
+ OpcodeTablePtr = &RegOp2MemOpTable1;
+ } else if (OpNum == 2) {
+ OpcodeTablePtr = &RegOp2MemOpTable2;
+ }
+
+ if (OpcodeTablePtr) {
+ // Find the Opcode to fuse
+ DenseMap<unsigned*, unsigned>::iterator I =
+ OpcodeTablePtr->find((unsigned*)Opc);
+ if (I != OpcodeTablePtr->end())
+ return I->second;
+ }
+ return 0;
+}
+
+bool X86RegisterInfo::unfoldMemoryOperand(MachineFunction &MF, MachineInstr *MI,
+ unsigned Reg, bool UnfoldLoad, bool UnfoldStore,
+ SmallVectorImpl<MachineInstr*> &NewMIs) const {
+ DenseMap<unsigned*, std::pair<unsigned,unsigned> >::iterator I =
+ MemOp2RegOpTable.find((unsigned*)MI->getOpcode());
+ if (I == MemOp2RegOpTable.end())
+ return false;
+ unsigned Opc = I->second.first;
+ unsigned Index = I->second.second & 0xf;
+ bool FoldedLoad = I->second.second & (1 << 4);
+ bool FoldedStore = I->second.second & (1 << 5);
+ if (UnfoldLoad && !FoldedLoad)
+ return false;
+ UnfoldLoad &= FoldedLoad;
+ if (UnfoldStore && !FoldedStore)
+ return false;
+ UnfoldStore &= FoldedStore;
+
+ const TargetInstrDescriptor &TID = TII.get(Opc);
+ const TargetOperandInfo &TOI = TID.OpInfo[Index];
+ const TargetRegisterClass *RC = (TOI.Flags & M_LOOK_UP_PTR_REG_CLASS)
+ ? TII.getPointerRegClass() : getRegClass(TOI.RegClass);
+ SmallVector<MachineOperand,4> AddrOps;
+ SmallVector<MachineOperand,2> BeforeOps;
+ SmallVector<MachineOperand,2> AfterOps;
+ SmallVector<MachineOperand,4> ImpOps;
+ for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
+ MachineOperand &Op = MI->getOperand(i);
+ if (i >= Index && i < Index+4)
+ AddrOps.push_back(Op);
+ else if (Op.isRegister() && Op.isImplicit())
+ ImpOps.push_back(Op);
+ else if (i < Index)
+ BeforeOps.push_back(Op);
+ else if (i > Index)
+ AfterOps.push_back(Op);
+ }
+
+ // Emit the load instruction.
+ if (UnfoldLoad) {
+ loadRegFromAddr(MF, Reg, AddrOps, RC, NewMIs);
+ if (UnfoldStore) {
+ // Address operands cannot be marked isKill.
+ for (unsigned i = 1; i != 5; ++i) {
+ MachineOperand &MO = NewMIs[0]->getOperand(i);
+ if (MO.isRegister())
+ MO.unsetIsKill();
+ }
+ }
+ }
+
+ // Emit the data processing instruction.
+ MachineInstr *DataMI = new MachineInstr(TID, true);
+ MachineInstrBuilder MIB(DataMI);
+
+ if (FoldedStore)
+ MIB.addReg(Reg, true);
+ for (unsigned i = 0, e = BeforeOps.size(); i != e; ++i)
+ MIB = X86InstrAddOperand(MIB, BeforeOps[i]);
+ if (FoldedLoad)
+ MIB.addReg(Reg);
+ for (unsigned i = 0, e = AfterOps.size(); i != e; ++i)
+ MIB = X86InstrAddOperand(MIB, AfterOps[i]);
+ for (unsigned i = 0, e = ImpOps.size(); i != e; ++i) {
+ MachineOperand &MO = ImpOps[i];
+ MIB.addReg(MO.getReg(), MO.isDef(), true, MO.isKill(), MO.isDead());
+ }
+ NewMIs.push_back(MIB);
+
+ // Emit the store instruction.
+ if (UnfoldStore) {
+ const TargetOperandInfo &DstTOI = TID.OpInfo[0];
+ const TargetRegisterClass *DstRC = (DstTOI.Flags & M_LOOK_UP_PTR_REG_CLASS)
+ ? TII.getPointerRegClass() : getRegClass(DstTOI.RegClass);
+ storeRegToAddr(MF, Reg, AddrOps, DstRC, NewMIs);
+ }
+
+ return true;
+}
+
+
+bool
+X86RegisterInfo::unfoldMemoryOperand(SelectionDAG &DAG, SDNode *N,
+ SmallVectorImpl<SDNode*> &NewNodes) const {
+ if (!N->isTargetOpcode())
+ return false;
+
+ DenseMap<unsigned*, std::pair<unsigned,unsigned> >::iterator I =
+ MemOp2RegOpTable.find((unsigned*)N->getTargetOpcode());
+ if (I == MemOp2RegOpTable.end())
+ return false;
+ unsigned Opc = I->second.first;
+ unsigned Index = I->second.second & 0xf;
+ bool FoldedLoad = I->second.second & (1 << 4);
+ bool FoldedStore = I->second.second & (1 << 5);
+ const TargetInstrDescriptor &TID = TII.get(Opc);
+ const TargetOperandInfo &TOI = TID.OpInfo[Index];
+ const TargetRegisterClass *RC = (TOI.Flags & M_LOOK_UP_PTR_REG_CLASS)
+ ? TII.getPointerRegClass() : getRegClass(TOI.RegClass);
+ std::vector<SDOperand> AddrOps;
+ std::vector<SDOperand> BeforeOps;
+ std::vector<SDOperand> AfterOps;
+ unsigned NumOps = N->getNumOperands();
+ for (unsigned i = 0; i != NumOps-1; ++i) {
+ SDOperand Op = N->getOperand(i);
+ if (i >= Index && i < Index+4)
+ AddrOps.push_back(Op);
+ else if (i < Index)
+ BeforeOps.push_back(Op);
+ else if (i > Index)
+ AfterOps.push_back(Op);
+ }
+ SDOperand Chain = N->getOperand(NumOps-1);
+ AddrOps.push_back(Chain);
+
+ // Emit the load instruction.
+ SDNode *Load = 0;
+ if (FoldedLoad) {
+ MVT::ValueType VT = *RC->vt_begin();
+ Load = DAG.getTargetNode(getLoadRegOpcode(RC, StackAlign), VT, MVT::Other,
+ &AddrOps[0], AddrOps.size());
+ NewNodes.push_back(Load);
+ }
+
+ // Emit the data processing instruction.
+ std::vector<MVT::ValueType> VTs;
+ const TargetRegisterClass *DstRC = 0;
+ if (TID.numDefs > 0) {
+ const TargetOperandInfo &DstTOI = TID.OpInfo[0];
+ DstRC = (DstTOI.Flags & M_LOOK_UP_PTR_REG_CLASS)
+ ? TII.getPointerRegClass() : getRegClass(DstTOI.RegClass);
+ VTs.push_back(*DstRC->vt_begin());
+ }
+ for (unsigned i = 0, e = N->getNumValues(); i != e; ++i) {
+ MVT::ValueType VT = N->getValueType(i);
+ if (VT != MVT::Other && i >= TID.numDefs)
+ VTs.push_back(VT);
+ }
+ if (Load)
+ BeforeOps.push_back(SDOperand(Load, 0));
+ std::copy(AfterOps.begin(), AfterOps.end(), std::back_inserter(BeforeOps));
+ SDNode *NewNode= DAG.getTargetNode(Opc, VTs, &BeforeOps[0], BeforeOps.size());
+ NewNodes.push_back(NewNode);
+
+ // Emit the store instruction.
+ if (FoldedStore) {
+ AddrOps.pop_back();
+ AddrOps.push_back(SDOperand(NewNode, 0));
+ AddrOps.push_back(Chain);
+ SDNode *Store = DAG.getTargetNode(getStoreRegOpcode(DstRC, StackAlign),
+ MVT::Other, &AddrOps[0], AddrOps.size());
+ NewNodes.push_back(Store);
+ }
+
+ return true;
+}
+
+unsigned X86RegisterInfo::getOpcodeAfterMemoryUnfold(unsigned Opc,
+ bool UnfoldLoad, bool UnfoldStore) const {
+ DenseMap<unsigned*, std::pair<unsigned,unsigned> >::iterator I =
+ MemOp2RegOpTable.find((unsigned*)Opc);
+ if (I == MemOp2RegOpTable.end())
+ return 0;
+ bool FoldedLoad = I->second.second & (1 << 4);
+ bool FoldedStore = I->second.second & (1 << 5);
+ if (UnfoldLoad && !FoldedLoad)
+ return 0;
+ if (UnfoldStore && !FoldedStore)
+ return 0;
+ return I->second.first;
+}
+
+const unsigned *
+X86RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
static const unsigned CalleeSavedRegs32Bit[] = {
X86::ESI, X86::EDI, X86::EBX, X86::EBP, 0
};
+
+ static const unsigned CalleeSavedRegs32EHRet[] = {
+ X86::EAX, X86::EDX, X86::ESI, X86::EDI, X86::EBX, X86::EBP, 0
+ };
+
static const unsigned CalleeSavedRegs64Bit[] = {
X86::RBX, X86::R12, X86::R13, X86::R14, X86::R15, X86::RBP, 0
};
- return Is64Bit ? CalleeSavedRegs64Bit : CalleeSavedRegs32Bit;
+ if (Is64Bit)
+ return CalleeSavedRegs64Bit;
+ else {
+ if (MF) {
+ MachineFrameInfo *MFI = MF->getFrameInfo();
+ MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
+ if (MMI && MMI->callsEHReturn())
+ return CalleeSavedRegs32EHRet;
+ }
+ return CalleeSavedRegs32Bit;
+ }
}
const TargetRegisterClass* const*
-X86RegisterInfo::getCalleeSavedRegClasses() const {
+X86RegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
static const TargetRegisterClass * const CalleeSavedRegClasses32Bit[] = {
&X86::GR32RegClass, &X86::GR32RegClass,
&X86::GR32RegClass, &X86::GR32RegClass, 0
};
+ static const TargetRegisterClass * const CalleeSavedRegClasses32EHRet[] = {
+ &X86::GR32RegClass, &X86::GR32RegClass,
+ &X86::GR32RegClass, &X86::GR32RegClass,
+ &X86::GR32RegClass, &X86::GR32RegClass, 0
+ };
static const TargetRegisterClass * const CalleeSavedRegClasses64Bit[] = {
&X86::GR64RegClass, &X86::GR64RegClass,
&X86::GR64RegClass, &X86::GR64RegClass,
&X86::GR64RegClass, &X86::GR64RegClass, 0
};
- return Is64Bit ? CalleeSavedRegClasses64Bit : CalleeSavedRegClasses32Bit;
+ if (Is64Bit)
+ return CalleeSavedRegClasses64Bit;
+ else {
+ if (MF) {
+ MachineFrameInfo *MFI = MF->getFrameInfo();
+ MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
+ if (MMI && MMI->callsEHReturn())
+ return CalleeSavedRegClasses32EHRet;
+ }
+ return CalleeSavedRegClasses32Bit;
+ }
+
}
BitVector X86RegisterInfo::getReservedRegs(const MachineFunction &MF) const {
// if frame pointer elimination is disabled.
//
bool X86RegisterInfo::hasFP(const MachineFunction &MF) const {
+ MachineFrameInfo *MFI = MF.getFrameInfo();
+ MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
+
return (NoFramePointerElim ||
- MF.getFrameInfo()->hasVarSizedObjects() ||
- MF.getInfo<X86FunctionInfo>()->getForceFramePointer());
+ MFI->hasVarSizedObjects() ||
+ MF.getInfo<X86MachineFunctionInfo>()->getForceFramePointer() ||
+ (MMI && MMI->callsUnwindInit()));
+}
+
+bool X86RegisterInfo::hasReservedCallFrame(MachineFunction &MF) const {
+ return !MF.getFrameInfo()->hasVarSizedObjects();
}
void X86RegisterInfo::
eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const {
- if (hasFP(MF)) {
- // If we have a frame pointer, turn the adjcallstackup instruction into a
- // 'sub ESP, <amt>' and the adjcallstackdown instruction into 'add ESP,
- // <amt>'
+ if (!hasReservedCallFrame(MF)) {
+ // If the stack pointer can be changed after prologue, turn the
+ // adjcallstackup instruction into a 'sub ESP, <amt>' and the
+ // adjcallstackdown instruction into 'add ESP, <amt>'
+ // TODO: consider using push / pop instead of sub + store / add
MachineInstr *Old = I;
- unsigned Amount = Old->getOperand(0).getImmedValue();
+ uint64_t Amount = Old->getOperand(0).getImm();
if (Amount != 0) {
// We need to keep the stack aligned properly. To do this, we round the
// amount of space needed for the outgoing arguments up to the next
// alignment boundary.
- unsigned Align = MF.getTarget().getFrameInfo()->getStackAlignment();
- Amount = (Amount+Align-1)/Align*Align;
+ Amount = (Amount+StackAlign-1)/StackAlign*StackAlign;
MachineInstr *New = 0;
if (Old->getOpcode() == X86::ADJCALLSTACKDOWN) {
} else {
assert(Old->getOpcode() == X86::ADJCALLSTACKUP);
// factor out the amount the callee already popped.
- unsigned CalleeAmt = Old->getOperand(1).getImmedValue();
+ uint64_t CalleeAmt = Old->getOperand(1).getImm();
Amount -= CalleeAmt;
if (Amount) {
unsigned Opc = (Amount < 128) ?
// If we are performing frame pointer elimination and if the callee pops
// something off the stack pointer, add it back. We do this until we have
// more advanced stack pointer tracking ability.
- if (unsigned CalleeAmt = I->getOperand(1).getImmedValue()) {
+ if (uint64_t CalleeAmt = I->getOperand(1).getImm()) {
unsigned Opc = (CalleeAmt < 128) ?
(Is64Bit ? X86::SUB64ri8 : X86::SUB32ri8) :
(Is64Bit ? X86::SUB64ri32 : X86::SUB32ri);
MBB.erase(I);
}
-void X86RegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II) const{
+void X86RegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
+ int SPAdj, RegScavenger *RS) const{
+ assert(SPAdj == 0 && "Unexpected");
+
unsigned i = 0;
MachineInstr &MI = *II;
MachineFunction &MF = *MI.getParent()->getParent();
MI.getOperand(i).ChangeToRegister(hasFP(MF) ? FramePtr : StackPtr, false);
// Now add the frame object offset to the offset from EBP.
- int Offset = MF.getFrameInfo()->getObjectOffset(FrameIndex) +
- MI.getOperand(i+3).getImmedValue()+SlotSize;
+ int64_t Offset = MF.getFrameInfo()->getObjectOffset(FrameIndex) +
+ MI.getOperand(i+3).getImm()+SlotSize;
if (!hasFP(MF))
Offset += MF.getFrameInfo()->getStackSize();
- else
+ else {
Offset += SlotSize; // Skip the saved EBP
-
+ // Skip the RETADDR move area
+ X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
+ int TailCallReturnAddrDelta = X86FI->getTCReturnAddrDelta();
+ if (TailCallReturnAddrDelta < 0) Offset -= TailCallReturnAddrDelta;
+ }
+
MI.getOperand(i+3).ChangeToImmediate(Offset);
}
void
X86RegisterInfo::processFunctionBeforeFrameFinalized(MachineFunction &MF) const{
+ X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
+ int32_t TailCallReturnAddrDelta = X86FI->getTCReturnAddrDelta();
+ if (TailCallReturnAddrDelta < 0) {
+ // create RETURNADDR area
+ // arg
+ // arg
+ // RETADDR
+ // { ...
+ // RETADDR area
+ // ...
+ // }
+ // [EBP]
+ MF.getFrameInfo()->
+ CreateFixedObject(-TailCallReturnAddrDelta,
+ (-1*SlotSize)+TailCallReturnAddrDelta);
+ }
if (hasFP(MF)) {
+ assert((TailCallReturnAddrDelta <= 0) &&
+ "The Delta should always be zero or negative");
// Create a frame entry for the EBP register that must be saved.
- int FrameIdx = MF.getFrameInfo()->CreateFixedObject(SlotSize,SlotSize * -2);
+ int FrameIdx = MF.getFrameInfo()->CreateFixedObject(SlotSize,
+ (int)SlotSize * -2+
+ TailCallReturnAddrDelta);
assert(FrameIdx == MF.getFrameInfo()->getObjectIndexBegin() &&
"Slot for EBP register must be last in order to be found!");
}
}
+/// emitSPUpdate - Emit a series of instructions to increment / decrement the
+/// stack pointer by a constant value.
+static
+void emitSPUpdate(MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI,
+ unsigned StackPtr, int64_t NumBytes, bool Is64Bit,
+ const TargetInstrInfo &TII) {
+ bool isSub = NumBytes < 0;
+ uint64_t Offset = isSub ? -NumBytes : NumBytes;
+ unsigned Opc = isSub
+ ? ((Offset < 128) ?
+ (Is64Bit ? X86::SUB64ri8 : X86::SUB32ri8) :
+ (Is64Bit ? X86::SUB64ri32 : X86::SUB32ri))
+ : ((Offset < 128) ?
+ (Is64Bit ? X86::ADD64ri8 : X86::ADD32ri8) :
+ (Is64Bit ? X86::ADD64ri32 : X86::ADD32ri));
+ uint64_t Chunk = (1LL << 31) - 1;
+
+ while (Offset) {
+ uint64_t ThisVal = (Offset > Chunk) ? Chunk : Offset;
+ BuildMI(MBB, MBBI, TII.get(Opc), StackPtr).addReg(StackPtr).addImm(ThisVal);
+ Offset -= ThisVal;
+ }
+}
+
+// mergeSPUpdatesUp - Merge two stack-manipulating instructions upper iterator.
+static
+void mergeSPUpdatesUp(MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI,
+ unsigned StackPtr, uint64_t *NumBytes = NULL) {
+ if (MBBI == MBB.begin()) return;
+
+ MachineBasicBlock::iterator PI = prior(MBBI);
+ unsigned Opc = PI->getOpcode();
+ if ((Opc == X86::ADD64ri32 || Opc == X86::ADD64ri8 ||
+ Opc == X86::ADD32ri || Opc == X86::ADD32ri8) &&
+ PI->getOperand(0).getReg() == StackPtr) {
+ if (NumBytes)
+ *NumBytes += PI->getOperand(2).getImm();
+ MBB.erase(PI);
+ } else if ((Opc == X86::SUB64ri32 || Opc == X86::SUB64ri8 ||
+ Opc == X86::SUB32ri || Opc == X86::SUB32ri8) &&
+ PI->getOperand(0).getReg() == StackPtr) {
+ if (NumBytes)
+ *NumBytes -= PI->getOperand(2).getImm();
+ MBB.erase(PI);
+ }
+}
+
+// mergeSPUpdatesUp - Merge two stack-manipulating instructions lower iterator.
+static
+void mergeSPUpdatesDown(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator &MBBI,
+ unsigned StackPtr, uint64_t *NumBytes = NULL) {
+ return;
+
+ if (MBBI == MBB.end()) return;
+
+ MachineBasicBlock::iterator NI = next(MBBI);
+ if (NI == MBB.end()) return;
+
+ unsigned Opc = NI->getOpcode();
+ if ((Opc == X86::ADD64ri32 || Opc == X86::ADD64ri8 ||
+ Opc == X86::ADD32ri || Opc == X86::ADD32ri8) &&
+ NI->getOperand(0).getReg() == StackPtr) {
+ if (NumBytes)
+ *NumBytes -= NI->getOperand(2).getImm();
+ MBB.erase(NI);
+ MBBI = NI;
+ } else if ((Opc == X86::SUB64ri32 || Opc == X86::SUB64ri8 ||
+ Opc == X86::SUB32ri || Opc == X86::SUB32ri8) &&
+ NI->getOperand(0).getReg() == StackPtr) {
+ if (NumBytes)
+ *NumBytes += NI->getOperand(2).getImm();
+ MBB.erase(NI);
+ MBBI = NI;
+ }
+}
+
+/// mergeSPUpdates - Checks the instruction before/after the passed
+/// instruction. If it is an ADD/SUB instruction it is deleted
+/// argument and the stack adjustment is returned as a positive value for ADD
+/// and a negative for SUB.
+static int mergeSPUpdates(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator &MBBI,
+ unsigned StackPtr,
+ bool doMergeWithPrevious) {
+
+ if ((doMergeWithPrevious && MBBI == MBB.begin()) ||
+ (!doMergeWithPrevious && MBBI == MBB.end()))
+ return 0;
+
+ int Offset = 0;
+
+ MachineBasicBlock::iterator PI = doMergeWithPrevious ? prior(MBBI) : MBBI;
+ MachineBasicBlock::iterator NI = doMergeWithPrevious ? 0 : next(MBBI);
+ unsigned Opc = PI->getOpcode();
+ if ((Opc == X86::ADD64ri32 || Opc == X86::ADD64ri8 ||
+ Opc == X86::ADD32ri || Opc == X86::ADD32ri8) &&
+ PI->getOperand(0).getReg() == StackPtr){
+ Offset += PI->getOperand(2).getImm();
+ MBB.erase(PI);
+ if (!doMergeWithPrevious) MBBI = NI;
+ } else if ((Opc == X86::SUB64ri32 || Opc == X86::SUB64ri8 ||
+ Opc == X86::SUB32ri || Opc == X86::SUB32ri8) &&
+ PI->getOperand(0).getReg() == StackPtr) {
+ Offset -= PI->getOperand(2).getImm();
+ MBB.erase(PI);
+ if (!doMergeWithPrevious) MBBI = NI;
+ }
+
+ return Offset;
+}
+
void X86RegisterInfo::emitPrologue(MachineFunction &MF) const {
MachineBasicBlock &MBB = MF.front(); // Prolog goes in entry BB
- MachineBasicBlock::iterator MBBI = MBB.begin();
MachineFrameInfo *MFI = MF.getFrameInfo();
- unsigned Align = MF.getTarget().getFrameInfo()->getStackAlignment();
const Function* Fn = MF.getFunction();
const X86Subtarget* Subtarget = &MF.getTarget().getSubtarget<X86Subtarget>();
- MachineInstr *MI;
MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
+ X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
+ MachineBasicBlock::iterator MBBI = MBB.begin();
// Prepare for frame info.
unsigned FrameLabelId = 0;
- // Get the number of bytes to allocate from the FrameInfo
- unsigned NumBytes = MFI->getStackSize();
+ // Get the number of bytes to allocate from the FrameInfo.
+ uint64_t StackSize = MFI->getStackSize();
+ // Add RETADDR move area to callee saved frame size.
+ int TailCallReturnAddrDelta = X86FI->getTCReturnAddrDelta();
+ if (TailCallReturnAddrDelta < 0)
+ X86FI->setCalleeSavedFrameSize(
+ X86FI->getCalleeSavedFrameSize() +(-TailCallReturnAddrDelta));
+ uint64_t NumBytes = StackSize - X86FI->getCalleeSavedFrameSize();
- if (NumBytes) { // adjust stack pointer: ESP -= numbytes
- if (NumBytes >= 4096 && Subtarget->isTargetCygMing()) {
- // Function prologue calls _alloca to probe the stack when allocating
- // more than 4k bytes in one go. Touching the stack at 4K increments is
- // necessary to ensure that the guard pages used by the OS virtual memory
- // manager are allocated in correct sequence.
- MI = BuildMI(TII.get(X86::MOV32ri), X86::EAX).addImm(NumBytes);
- MBB.insert(MBBI, MI);
- MI = BuildMI(TII.get(X86::CALLpcrel32)).addExternalSymbol("_alloca");
- MBB.insert(MBBI, MI);
- } else {
- unsigned Opc = (NumBytes < 128) ?
- (Is64Bit ? X86::SUB64ri8 : X86::SUB32ri8) :
- (Is64Bit ? X86::SUB64ri32 : X86::SUB32ri);
- MI= BuildMI(TII.get(Opc), StackPtr).addReg(StackPtr).addImm(NumBytes);
- MBB.insert(MBBI, MI);
- }
+ // Insert stack pointer adjustment for later moving of return addr. Only
+ // applies to tail call optimized functions where the callee argument stack
+ // size is bigger than the callers.
+ if (TailCallReturnAddrDelta < 0) {
+ BuildMI(MBB, MBBI, TII.get(Is64Bit? X86::SUB64ri32 : X86::SUB32ri),
+ StackPtr).addReg(StackPtr).addImm(-TailCallReturnAddrDelta);
}
- if (MMI && MMI->needsFrameInfo()) {
- // Mark effective beginning of when frame pointer becomes valid.
- FrameLabelId = MMI->NextLabelID();
- BuildMI(MBB, MBBI, TII.get(X86::LABEL)).addImm(FrameLabelId);
- }
-
if (hasFP(MF)) {
// Get the offset of the stack slot for the EBP register... which is
// guaranteed to be the last slot by processFunctionBeforeFrameFinalized.
- int EBPOffset = MFI->getObjectOffset(MFI->getObjectIndexBegin())+SlotSize;
// Update the frame offset adjustment.
MFI->setOffsetAdjustment(SlotSize-NumBytes);
-
+
// Save EBP into the appropriate stack slot...
- // mov [ESP-<offset>], EBP
- MI = addRegOffset(BuildMI(TII.get(Is64Bit ? X86::MOV64mr : X86::MOV32mr)),
- StackPtr, EBPOffset+NumBytes).addReg(FramePtr);
- MBB.insert(MBBI, MI);
+ BuildMI(MBB, MBBI, TII.get(Is64Bit ? X86::PUSH64r : X86::PUSH32r))
+ .addReg(FramePtr);
+ NumBytes -= SlotSize;
+
+ if (MMI && MMI->needsFrameInfo()) {
+ // Mark effective beginning of when frame pointer becomes valid.
+ FrameLabelId = MMI->NextLabelID();
+ BuildMI(MBB, MBBI, TII.get(X86::LABEL)).addImm(FrameLabelId);
+ }
// Update EBP with the new base value...
- if (NumBytes == SlotSize) // mov EBP, ESP
- MI = BuildMI(TII.get(Is64Bit ? X86::MOV64rr : X86::MOV32rr), FramePtr).
- addReg(StackPtr);
- else // lea EBP, [ESP+StackSize]
- MI = addRegOffset(BuildMI(TII.get(Is64Bit ? X86::LEA64r : X86::LEA32r),
- FramePtr), StackPtr, NumBytes-SlotSize);
-
- MBB.insert(MBBI, MI);
+ BuildMI(MBB, MBBI, TII.get(Is64Bit ? X86::MOV64rr : X86::MOV32rr), FramePtr)
+ .addReg(StackPtr);
+ }
+
+ unsigned ReadyLabelId = 0;
+ if (MMI && MMI->needsFrameInfo()) {
+ // Mark effective beginning of when frame pointer is ready.
+ ReadyLabelId = MMI->NextLabelID();
+ BuildMI(MBB, MBBI, TII.get(X86::LABEL)).addImm(ReadyLabelId);
+ }
+
+ // Skip the callee-saved push instructions.
+ while (MBBI != MBB.end() &&
+ (MBBI->getOpcode() == X86::PUSH32r ||
+ MBBI->getOpcode() == X86::PUSH64r))
+ ++MBBI;
+
+ if (NumBytes) { // adjust stack pointer: ESP -= numbytes
+ if (NumBytes >= 4096 && Subtarget->isTargetCygMing()) {
+ // Check, whether EAX is livein for this function
+ bool isEAXAlive = false;
+ for (MachineFunction::livein_iterator II = MF.livein_begin(),
+ EE = MF.livein_end(); (II != EE) && !isEAXAlive; ++II) {
+ unsigned Reg = II->first;
+ isEAXAlive = (Reg == X86::EAX || Reg == X86::AX ||
+ Reg == X86::AH || Reg == X86::AL);
+ }
+
+ // Function prologue calls _alloca to probe the stack when allocating
+ // more than 4k bytes in one go. Touching the stack at 4K increments is
+ // necessary to ensure that the guard pages used by the OS virtual memory
+ // manager are allocated in correct sequence.
+ if (!isEAXAlive) {
+ BuildMI(MBB, MBBI, TII.get(X86::MOV32ri), X86::EAX).addImm(NumBytes);
+ BuildMI(MBB, MBBI, TII.get(X86::CALLpcrel32))
+ .addExternalSymbol("_alloca");
+ } else {
+ // Save EAX
+ BuildMI(MBB, MBBI, TII.get(X86::PUSH32r), X86::EAX);
+ // Allocate NumBytes-4 bytes on stack. We'll also use 4 already
+ // allocated bytes for EAX.
+ BuildMI(MBB, MBBI, TII.get(X86::MOV32ri), X86::EAX).addImm(NumBytes-4);
+ BuildMI(MBB, MBBI, TII.get(X86::CALLpcrel32))
+ .addExternalSymbol("_alloca");
+ // Restore EAX
+ MachineInstr *MI = addRegOffset(BuildMI(TII.get(X86::MOV32rm),X86::EAX),
+ StackPtr, NumBytes-4);
+ MBB.insert(MBBI, MI);
+ }
+ } else {
+ // If there is an SUB32ri of ESP immediately before this instruction,
+ // merge the two. This can be the case when tail call elimination is
+ // enabled and the callee has more arguments then the caller.
+ NumBytes -= mergeSPUpdates(MBB, MBBI, StackPtr, true);
+ // If there is an ADD32ri or SUB32ri of ESP immediately after this
+ // instruction, merge the two instructions.
+ mergeSPUpdatesDown(MBB, MBBI, StackPtr, &NumBytes);
+
+ if (NumBytes)
+ emitSPUpdate(MBB, MBBI, StackPtr, -(int64_t)NumBytes, Is64Bit, TII);
+ }
}
if (MMI && MMI->needsFrameInfo()) {
std::vector<MachineMove> &Moves = MMI->getFrameMoves();
-
- if (NumBytes) {
+ const TargetData *TD = MF.getTarget().getTargetData();
+
+ // Calculate amount of bytes used for return address storing
+ int stackGrowth =
+ (MF.getTarget().getFrameInfo()->getStackGrowthDirection() ==
+ TargetFrameInfo::StackGrowsUp ?
+ TD->getPointerSize() : -TD->getPointerSize());
+
+ if (StackSize) {
// Show update of SP.
- MachineLocation SPDst(MachineLocation::VirtualFP);
- MachineLocation SPSrc(MachineLocation::VirtualFP, -NumBytes);
- Moves.push_back(MachineMove(FrameLabelId, SPDst, SPSrc));
+ if (hasFP(MF)) {
+ // Adjust SP
+ MachineLocation SPDst(MachineLocation::VirtualFP);
+ MachineLocation SPSrc(MachineLocation::VirtualFP, 2*stackGrowth);
+ Moves.push_back(MachineMove(FrameLabelId, SPDst, SPSrc));
+ } else {
+ MachineLocation SPDst(MachineLocation::VirtualFP);
+ MachineLocation SPSrc(MachineLocation::VirtualFP, -StackSize+stackGrowth);
+ Moves.push_back(MachineMove(FrameLabelId, SPDst, SPSrc));
+ }
} else {
- MachineLocation SP(StackPtr);
- Moves.push_back(MachineMove(FrameLabelId, SP, SP));
+ //FIXME: Verify & implement for FP
+ MachineLocation SPDst(StackPtr);
+ MachineLocation SPSrc(StackPtr, stackGrowth);
+ Moves.push_back(MachineMove(FrameLabelId, SPDst, SPSrc));
}
-
+
// Add callee saved registers to move list.
const std::vector<CalleeSavedInfo> &CSI = MFI->getCalleeSavedInfo();
- for (unsigned I = 0, E = CSI.size(); I != E; ++I) {
- int Offset = MFI->getObjectOffset(CSI[I].getFrameIdx());
+
+ // FIXME: This is dirty hack. The code itself is pretty mess right now.
+ // It should be rewritten from scratch and generalized sometimes.
+
+ // Determine maximum offset (minumum due to stack growth)
+ int64_t MaxOffset = 0;
+ for (unsigned I = 0, E = CSI.size(); I!=E; ++I)
+ MaxOffset = std::min(MaxOffset,
+ MFI->getObjectOffset(CSI[I].getFrameIdx()));
+
+ // Calculate offsets
+ int64_t saveAreaOffset = (hasFP(MF) ? 3 : 2)*stackGrowth;
+ for (unsigned I = 0, E = CSI.size(); I!=E; ++I) {
+ int64_t Offset = MFI->getObjectOffset(CSI[I].getFrameIdx());
unsigned Reg = CSI[I].getReg();
+ Offset = (MaxOffset-Offset+saveAreaOffset);
MachineLocation CSDst(MachineLocation::VirtualFP, Offset);
MachineLocation CSSrc(Reg);
Moves.push_back(MachineMove(FrameLabelId, CSDst, CSSrc));
}
- // Mark effective beginning of when frame pointer is ready.
- unsigned ReadyLabelId = MMI->NextLabelID();
- BuildMI(MBB, MBBI, TII.get(X86::LABEL)).addImm(ReadyLabelId);
+ if (hasFP(MF)) {
+ // Save FP
+ MachineLocation FPDst(MachineLocation::VirtualFP, 2*stackGrowth);
+ MachineLocation FPSrc(FramePtr);
+ Moves.push_back(MachineMove(ReadyLabelId, FPDst, FPSrc));
+ }
MachineLocation FPDst(hasFP(MF) ? FramePtr : StackPtr);
MachineLocation FPSrc(MachineLocation::VirtualFP);
// If it's main() on Cygwin\Mingw32 we should align stack as well
if (Fn->hasExternalLinkage() && Fn->getName() == "main" &&
Subtarget->isTargetCygMing()) {
- MI= BuildMI(TII.get(X86::AND32ri), X86::ESP)
- .addReg(X86::ESP).addImm(-Align);
- MBB.insert(MBBI, MI);
+ BuildMI(MBB, MBBI, TII.get(X86::AND32ri), X86::ESP)
+ .addReg(X86::ESP).addImm(-StackAlign);
// Probe the stack
- MI = BuildMI(TII.get(X86::MOV32ri), X86::EAX).addImm(Align);
- MBB.insert(MBBI, MI);
- MI = BuildMI(TII.get(X86::CALLpcrel32)).addExternalSymbol("_alloca");
- MBB.insert(MBBI, MI);
+ BuildMI(MBB, MBBI, TII.get(X86::MOV32ri), X86::EAX).addImm(StackAlign);
+ BuildMI(MBB, MBBI, TII.get(X86::CALLpcrel32)).addExternalSymbol("_alloca");
}
}
void X86RegisterInfo::emitEpilogue(MachineFunction &MF,
MachineBasicBlock &MBB) const {
const MachineFrameInfo *MFI = MF.getFrameInfo();
+ const Function* Fn = MF.getFunction();
+ X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
+ const X86Subtarget* Subtarget = &MF.getTarget().getSubtarget<X86Subtarget>();
MachineBasicBlock::iterator MBBI = prior(MBB.end());
+ unsigned RetOpcode = MBBI->getOpcode();
- switch (MBBI->getOpcode()) {
+ switch (RetOpcode) {
case X86::RET:
case X86::RETI:
+ case X86::TCRETURNdi:
+ case X86::TCRETURNri:
+ case X86::TCRETURNri64:
+ case X86::TCRETURNdi64:
+ case X86::EH_RETURN:
case X86::TAILJMPd:
case X86::TAILJMPr:
case X86::TAILJMPm: break; // These are ok
assert(0 && "Can only insert epilog into returning blocks");
}
- if (hasFP(MF)) {
- // mov ESP, EBP
- BuildMI(MBB, MBBI, TII.get(Is64Bit ? X86::MOV64rr : X86::MOV32rr),StackPtr).
- addReg(FramePtr);
+ // Get the number of bytes to allocate from the FrameInfo
+ uint64_t StackSize = MFI->getStackSize();
+ unsigned CSSize = X86FI->getCalleeSavedFrameSize();
+ uint64_t NumBytes = StackSize - CSSize;
- // pop EBP
+ if (hasFP(MF)) {
+ // pop EBP.
BuildMI(MBB, MBBI, TII.get(Is64Bit ? X86::POP64r : X86::POP32r), FramePtr);
- } else {
- // Get the number of bytes allocated from the FrameInfo...
- unsigned NumBytes = MFI->getStackSize();
+ NumBytes -= SlotSize;
+ }
- if (NumBytes) { // adjust stack pointer back: ESP += numbytes
- // If there is an ADD32ri or SUB32ri of ESP immediately before this
- // instruction, merge the two instructions.
- if (MBBI != MBB.begin()) {
- MachineBasicBlock::iterator PI = prior(MBBI);
- unsigned Opc = PI->getOpcode();
- if ((Opc == X86::ADD64ri32 || Opc == X86::ADD64ri8 ||
- Opc == X86::ADD32ri || Opc == X86::ADD32ri8) &&
- PI->getOperand(0).getReg() == StackPtr) {
- NumBytes += PI->getOperand(2).getImmedValue();
- MBB.erase(PI);
- } else if ((Opc == X86::SUB64ri32 || Opc == X86::SUB64ri8 ||
- Opc == X86::SUB32ri || Opc == X86::SUB32ri8) &&
- PI->getOperand(0).getReg() == StackPtr) {
- NumBytes -= PI->getOperand(2).getImmedValue();
- MBB.erase(PI);
- }
- }
+ // Skip the callee-saved pop instructions.
+ while (MBBI != MBB.begin()) {
+ MachineBasicBlock::iterator PI = prior(MBBI);
+ unsigned Opc = PI->getOpcode();
+ if (Opc != X86::POP32r && Opc != X86::POP64r && !TII.isTerminatorInstr(Opc))
+ break;
+ --MBBI;
+ }
- if (NumBytes > 0) {
- unsigned Opc = (NumBytes < 128) ?
- (Is64Bit ? X86::ADD64ri8 : X86::ADD32ri8) :
- (Is64Bit ? X86::ADD64ri32 : X86::ADD32ri);
- BuildMI(MBB, MBBI, TII.get(Opc), StackPtr)
- .addReg(StackPtr).addImm(NumBytes);
- } else if ((int)NumBytes < 0) {
- unsigned Opc = (-NumBytes < 128) ?
- (Is64Bit ? X86::SUB64ri8 : X86::SUB32ri8) :
- (Is64Bit ? X86::SUB64ri32 : X86::SUB32ri);
- BuildMI(MBB, MBBI, TII.get(Opc), StackPtr)
- .addReg(StackPtr).addImm(-NumBytes);
- }
- }
+ // If there is an ADD32ri or SUB32ri of ESP immediately before this
+ // instruction, merge the two instructions.
+ if (NumBytes || MFI->hasVarSizedObjects())
+ mergeSPUpdatesUp(MBB, MBBI, StackPtr, &NumBytes);
+
+ // If dynamic alloca is used, then reset esp to point to the last callee-saved
+ // slot before popping them off! Also, if it's main() on Cygwin/Mingw32 we
+ // aligned stack in the prologue, - revert stack changes back. Note: we're
+ // assuming, that frame pointer was forced for main()
+ if (MFI->hasVarSizedObjects() ||
+ (Fn->hasExternalLinkage() && Fn->getName() == "main" &&
+ Subtarget->isTargetCygMing())) {
+ unsigned Opc = Is64Bit ? X86::LEA64r : X86::LEA32r;
+ if (CSSize) {
+ MachineInstr *MI = addRegOffset(BuildMI(TII.get(Opc), StackPtr),
+ FramePtr, -CSSize);
+ MBB.insert(MBBI, MI);
+ } else
+ BuildMI(MBB, MBBI, TII.get(Is64Bit ? X86::MOV64rr : X86::MOV32rr),StackPtr).
+ addReg(FramePtr);
+
+ NumBytes = 0;
+ }
+
+ // adjust stack pointer back: ESP += numbytes
+ if (NumBytes)
+ emitSPUpdate(MBB, MBBI, StackPtr, NumBytes, Is64Bit, TII);
+
+ // We're returning from function via eh_return.
+ if (RetOpcode == X86::EH_RETURN) {
+ MBBI = prior(MBB.end());
+ MachineOperand &DestAddr = MBBI->getOperand(0);
+ assert(DestAddr.isRegister() && "Offset should be in register!");
+ BuildMI(MBB, MBBI, TII.get(Is64Bit ? X86::MOV64rr : X86::MOV32rr),StackPtr).
+ addReg(DestAddr.getReg());
+ // Tail call return: adjust the stack pointer and jump to callee
+ } else if (RetOpcode == X86::TCRETURNri || RetOpcode == X86::TCRETURNdi ||
+ RetOpcode== X86::TCRETURNri64 || RetOpcode == X86::TCRETURNdi64) {
+ MBBI = prior(MBB.end());
+ MachineOperand &JumpTarget = MBBI->getOperand(0);
+ MachineOperand &StackAdjust = MBBI->getOperand(1);
+ assert( StackAdjust.isImmediate() && "Expecting immediate value.");
+
+ // Adjust stack pointer.
+ int StackAdj = StackAdjust.getImm();
+ int MaxTCDelta = X86FI->getTCReturnAddrDelta();
+ int Offset = 0;
+ assert(MaxTCDelta <= 0 && "MaxTCDelta should never be positive");
+ // Incoporate the retaddr area.
+ Offset = StackAdj-MaxTCDelta;
+ assert(Offset >= 0 && "Offset should never be negative");
+ if (Offset) {
+ // Check for possible merge with preceeding ADD instruction.
+ Offset += mergeSPUpdates(MBB, MBBI, StackPtr, true);
+ emitSPUpdate(MBB, MBBI, StackPtr, Offset, Is64Bit, TII);
+ }
+ // Jump to label or value in register.
+ if (RetOpcode == X86::TCRETURNdi|| RetOpcode == X86::TCRETURNdi64)
+ BuildMI(MBB, MBBI, TII.get(X86::TAILJMPd)).
+ addGlobalAddress(JumpTarget.getGlobal(), JumpTarget.getOffset());
+ else if (RetOpcode== X86::TCRETURNri64) {
+ BuildMI(MBB, MBBI, TII.get(X86::TAILJMPr64), JumpTarget.getReg());
+ } else
+ BuildMI(MBB, MBBI, TII.get(X86::TAILJMPr), JumpTarget.getReg());
+ // Delete the pseudo instruction TCRETURN.
+ MBB.erase(MBBI);
+ } else if ((RetOpcode == X86::RET || RetOpcode == X86::RETI) &&
+ (X86FI->getTCReturnAddrDelta() < 0)) {
+ // Add the return addr area delta back since we are not tail calling.
+ int delta = -1*X86FI->getTCReturnAddrDelta();
+ MBBI = prior(MBB.end());
+ // Check for possible merge with preceeding ADD instruction.
+ delta += mergeSPUpdates(MBB, MBBI, StackPtr, true);
+ emitSPUpdate(MBB, MBBI, StackPtr, delta, Is64Bit, TII);
}
}
unsigned X86RegisterInfo::getRARegister() const {
- return X86::ST0; // use a non-register register
+ if (Is64Bit)
+ return X86::RIP; // Should have dwarf #16
+ else
+ return X86::EIP; // Should have dwarf #8
}
unsigned X86RegisterInfo::getFrameRegister(MachineFunction &MF) const {
void X86RegisterInfo::getInitialFrameState(std::vector<MachineMove> &Moves)
const {
- // Initial state of the frame pointer is esp.
+ // Calculate amount of bytes used for return address storing
+ int stackGrowth = (Is64Bit ? -8 : -4);
+
+ // Initial state of the frame pointer is esp+4.
MachineLocation Dst(MachineLocation::VirtualFP);
- MachineLocation Src(StackPtr, 0);
+ MachineLocation Src(StackPtr, stackGrowth);
Moves.push_back(MachineMove(0, Dst, Src));
+
+ // Add return address to move list
+ MachineLocation CSDst(StackPtr, stackGrowth);
+ MachineLocation CSSrc(getRARegister());
+ Moves.push_back(MachineMove(0, CSDst, CSSrc));
}
unsigned X86RegisterInfo::getEHExceptionRegister() const {
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