#include "X86Subtarget.h"
#include "X86TargetMachine.h"
#include "llvm/DerivedTypes.h"
+#include "llvm/LLVMContext.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/LiveVariables.h"
+#include "llvm/CodeGen/PseudoSourceValue.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetOptions.h"
-#include "llvm/Target/TargetAsmInfo.h"
+#include "llvm/MC/MCAsmInfo.h"
+
+#include <limits>
using namespace llvm;
-namespace {
- cl::opt<bool>
- NoFusing("disable-spill-fusing",
- cl::desc("Disable fusing of spill code into instructions"));
- cl::opt<bool>
- PrintFailedFusing("print-failed-fuse-candidates",
- cl::desc("Print instructions that the allocator wants to"
- " fuse, but the X86 backend currently can't"),
- cl::Hidden);
- cl::opt<bool>
- ReMatPICStubLoad("remat-pic-stub-load",
- cl::desc("Re-materialize load from stub in PIC mode"),
- cl::init(false), cl::Hidden);
-}
+static cl::opt<bool>
+NoFusing("disable-spill-fusing",
+ cl::desc("Disable fusing of spill code into instructions"));
+static cl::opt<bool>
+PrintFailedFusing("print-failed-fuse-candidates",
+ cl::desc("Print instructions that the allocator wants to"
+ " fuse, but the X86 backend currently can't"),
+ cl::Hidden);
+static cl::opt<bool>
+ReMatPICStubLoad("remat-pic-stub-load",
+ cl::desc("Re-materialize load from stub in PIC mode"),
+ cl::init(false), cl::Hidden);
X86InstrInfo::X86InstrInfo(X86TargetMachine &tm)
: TargetInstrInfoImpl(X86Insts, array_lengthof(X86Insts)),
unsigned RegOp = OpTbl2Addr[i][0];
unsigned MemOp = OpTbl2Addr[i][1];
if (!RegOp2MemOpTable2Addr.insert(std::make_pair((unsigned*)RegOp,
- MemOp)).second)
+ std::make_pair(MemOp,0))).second)
assert(false && "Duplicated entries?");
- unsigned AuxInfo = 0 | (1 << 4) | (1 << 5); // Index 0,folded load and store
+ // Index 0, folded load and store, no alignment requirement.
+ unsigned AuxInfo = 0 | (1 << 4) | (1 << 5);
if (!MemOp2RegOpTable.insert(std::make_pair((unsigned*)MemOp,
std::make_pair(RegOp,
AuxInfo))).second)
}
// If the third value is 1, then it's folding either a load or a store.
- static const unsigned OpTbl0[][3] = {
- { X86::BT16ri8, X86::BT16mi8, 1 },
- { X86::BT32ri8, X86::BT32mi8, 1 },
- { X86::BT64ri8, X86::BT64mi8, 1 },
- { X86::CALL32r, X86::CALL32m, 1 },
- { X86::CALL64r, X86::CALL64m, 1 },
- { X86::CMP16ri, X86::CMP16mi, 1 },
- { X86::CMP16ri8, X86::CMP16mi8, 1 },
- { X86::CMP16rr, X86::CMP16mr, 1 },
- { X86::CMP32ri, X86::CMP32mi, 1 },
- { X86::CMP32ri8, X86::CMP32mi8, 1 },
- { X86::CMP32rr, X86::CMP32mr, 1 },
- { X86::CMP64ri32, X86::CMP64mi32, 1 },
- { X86::CMP64ri8, X86::CMP64mi8, 1 },
- { X86::CMP64rr, X86::CMP64mr, 1 },
- { X86::CMP8ri, X86::CMP8mi, 1 },
- { X86::CMP8rr, X86::CMP8mr, 1 },
- { X86::DIV16r, X86::DIV16m, 1 },
- { X86::DIV32r, X86::DIV32m, 1 },
- { X86::DIV64r, X86::DIV64m, 1 },
- { X86::DIV8r, X86::DIV8m, 1 },
- { X86::EXTRACTPSrr, X86::EXTRACTPSmr, 0 },
- { 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::MOV32ri, X86::MOV32mi, 0 },
- { X86::MOV32rr, X86::MOV32mr, 0 },
- { X86::MOV64ri32, X86::MOV64mi32, 0 },
- { X86::MOV64rr, X86::MOV64mr, 0 },
- { X86::MOV8ri, X86::MOV8mi, 0 },
- { X86::MOV8rr, X86::MOV8mr, 0 },
- { X86::MOV8rr_NOREX, X86::MOV8mr_NOREX, 0 },
- { X86::MOVAPDrr, X86::MOVAPDmr, 0 },
- { X86::MOVAPSrr, X86::MOVAPSmr, 0 },
- { X86::MOVDQArr, X86::MOVDQAmr, 0 },
- { X86::MOVPDI2DIrr, X86::MOVPDI2DImr, 0 },
- { X86::MOVPQIto64rr,X86::MOVPQI2QImr, 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::SETNOr, X86::SETNOm, 0 },
- { X86::SETNPr, X86::SETNPm, 0 },
- { X86::SETNSr, X86::SETNSm, 0 },
- { X86::SETOr, X86::SETOm, 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 }
+ static const unsigned OpTbl0[][4] = {
+ { X86::BT16ri8, X86::BT16mi8, 1, 0 },
+ { X86::BT32ri8, X86::BT32mi8, 1, 0 },
+ { X86::BT64ri8, X86::BT64mi8, 1, 0 },
+ { X86::CALL32r, X86::CALL32m, 1, 0 },
+ { X86::CALL64r, X86::CALL64m, 1, 0 },
+ { X86::CMP16ri, X86::CMP16mi, 1, 0 },
+ { X86::CMP16ri8, X86::CMP16mi8, 1, 0 },
+ { X86::CMP16rr, X86::CMP16mr, 1, 0 },
+ { X86::CMP32ri, X86::CMP32mi, 1, 0 },
+ { X86::CMP32ri8, X86::CMP32mi8, 1, 0 },
+ { X86::CMP32rr, X86::CMP32mr, 1, 0 },
+ { X86::CMP64ri32, X86::CMP64mi32, 1, 0 },
+ { X86::CMP64ri8, X86::CMP64mi8, 1, 0 },
+ { X86::CMP64rr, X86::CMP64mr, 1, 0 },
+ { X86::CMP8ri, X86::CMP8mi, 1, 0 },
+ { X86::CMP8rr, X86::CMP8mr, 1, 0 },
+ { X86::DIV16r, X86::DIV16m, 1, 0 },
+ { X86::DIV32r, X86::DIV32m, 1, 0 },
+ { X86::DIV64r, X86::DIV64m, 1, 0 },
+ { X86::DIV8r, X86::DIV8m, 1, 0 },
+ { X86::EXTRACTPSrr, X86::EXTRACTPSmr, 0, 16 },
+ { X86::FsMOVAPDrr, X86::MOVSDmr, 0, 0 },
+ { X86::FsMOVAPSrr, X86::MOVSSmr, 0, 0 },
+ { X86::IDIV16r, X86::IDIV16m, 1, 0 },
+ { X86::IDIV32r, X86::IDIV32m, 1, 0 },
+ { X86::IDIV64r, X86::IDIV64m, 1, 0 },
+ { X86::IDIV8r, X86::IDIV8m, 1, 0 },
+ { X86::IMUL16r, X86::IMUL16m, 1, 0 },
+ { X86::IMUL32r, X86::IMUL32m, 1, 0 },
+ { X86::IMUL64r, X86::IMUL64m, 1, 0 },
+ { X86::IMUL8r, X86::IMUL8m, 1, 0 },
+ { X86::JMP32r, X86::JMP32m, 1, 0 },
+ { X86::JMP64r, X86::JMP64m, 1, 0 },
+ { X86::MOV16ri, X86::MOV16mi, 0, 0 },
+ { X86::MOV16rr, X86::MOV16mr, 0, 0 },
+ { X86::MOV32ri, X86::MOV32mi, 0, 0 },
+ { X86::MOV32rr, X86::MOV32mr, 0, 0 },
+ { X86::MOV64ri32, X86::MOV64mi32, 0, 0 },
+ { X86::MOV64rr, X86::MOV64mr, 0, 0 },
+ { X86::MOV8ri, X86::MOV8mi, 0, 0 },
+ { X86::MOV8rr, X86::MOV8mr, 0, 0 },
+ { X86::MOV8rr_NOREX, X86::MOV8mr_NOREX, 0, 0 },
+ { X86::MOVAPDrr, X86::MOVAPDmr, 0, 16 },
+ { X86::MOVAPSrr, X86::MOVAPSmr, 0, 16 },
+ { X86::MOVDQArr, X86::MOVDQAmr, 0, 16 },
+ { X86::MOVPDI2DIrr, X86::MOVPDI2DImr, 0, 0 },
+ { X86::MOVPQIto64rr,X86::MOVPQI2QImr, 0, 0 },
+ { X86::MOVPS2SSrr, X86::MOVPS2SSmr, 0, 0 },
+ { X86::MOVSDrr, X86::MOVSDmr, 0, 0 },
+ { X86::MOVSDto64rr, X86::MOVSDto64mr, 0, 0 },
+ { X86::MOVSS2DIrr, X86::MOVSS2DImr, 0, 0 },
+ { X86::MOVSSrr, X86::MOVSSmr, 0, 0 },
+ { X86::MOVUPDrr, X86::MOVUPDmr, 0, 0 },
+ { X86::MOVUPSrr, X86::MOVUPSmr, 0, 0 },
+ { X86::MUL16r, X86::MUL16m, 1, 0 },
+ { X86::MUL32r, X86::MUL32m, 1, 0 },
+ { X86::MUL64r, X86::MUL64m, 1, 0 },
+ { X86::MUL8r, X86::MUL8m, 1, 0 },
+ { X86::SETAEr, X86::SETAEm, 0, 0 },
+ { X86::SETAr, X86::SETAm, 0, 0 },
+ { X86::SETBEr, X86::SETBEm, 0, 0 },
+ { X86::SETBr, X86::SETBm, 0, 0 },
+ { X86::SETEr, X86::SETEm, 0, 0 },
+ { X86::SETGEr, X86::SETGEm, 0, 0 },
+ { X86::SETGr, X86::SETGm, 0, 0 },
+ { X86::SETLEr, X86::SETLEm, 0, 0 },
+ { X86::SETLr, X86::SETLm, 0, 0 },
+ { X86::SETNEr, X86::SETNEm, 0, 0 },
+ { X86::SETNOr, X86::SETNOm, 0, 0 },
+ { X86::SETNPr, X86::SETNPm, 0, 0 },
+ { X86::SETNSr, X86::SETNSm, 0, 0 },
+ { X86::SETOr, X86::SETOm, 0, 0 },
+ { X86::SETPr, X86::SETPm, 0, 0 },
+ { X86::SETSr, X86::SETSm, 0, 0 },
+ { X86::TAILJMPr, X86::TAILJMPm, 1, 0 },
+ { X86::TEST16ri, X86::TEST16mi, 1, 0 },
+ { X86::TEST32ri, X86::TEST32mi, 1, 0 },
+ { X86::TEST64ri32, X86::TEST64mi32, 1, 0 },
+ { X86::TEST8ri, X86::TEST8mi, 1, 0 }
};
for (unsigned i = 0, e = array_lengthof(OpTbl0); i != e; ++i) {
unsigned RegOp = OpTbl0[i][0];
unsigned MemOp = OpTbl0[i][1];
+ unsigned Align = OpTbl0[i][3];
if (!RegOp2MemOpTable0.insert(std::make_pair((unsigned*)RegOp,
- MemOp)).second)
+ std::make_pair(MemOp,Align))).second)
assert(false && "Duplicated entries?");
unsigned FoldedLoad = OpTbl0[i][2];
// Index 0, folded load or store.
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::MOV32rr, X86::MOV32rm },
- { X86::MOV64rr, X86::MOV64rm },
- { X86::MOV64toPQIrr, X86::MOVQI2PQIrm },
- { 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::MOVDQArr, X86::MOVDQArm },
- { 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::MOVZDI2PDIrr, X86::MOVZDI2PDIrm },
- { X86::MOVZQI2PQIrr, X86::MOVZQI2PQIrm },
- { X86::MOVZPQILo2PQIrr, X86::MOVZPQILo2PQIrm },
- { X86::MOVZX16rr8, X86::MOVZX16rm8 },
- { X86::MOVZX32rr16, X86::MOVZX32rm16 },
- { X86::MOVZX32_NOREXrr8, X86::MOVZX32_NOREXrm8 },
- { X86::MOVZX32rr8, X86::MOVZX32rm8 },
- { X86::MOVZX64rr16, X86::MOVZX64rm16 },
- { X86::MOVZX64rr32, X86::MOVZX64rm32 },
- { X86::MOVZX64rr8, X86::MOVZX64rm8 },
- { X86::PSHUFDri, X86::PSHUFDmi },
- { X86::PSHUFHWri, X86::PSHUFHWmi },
- { X86::PSHUFLWri, X86::PSHUFLWmi },
- { 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 },
+ static const unsigned OpTbl1[][3] = {
+ { X86::CMP16rr, X86::CMP16rm, 0 },
+ { X86::CMP32rr, X86::CMP32rm, 0 },
+ { X86::CMP64rr, X86::CMP64rm, 0 },
+ { X86::CMP8rr, X86::CMP8rm, 0 },
+ { X86::CVTSD2SSrr, X86::CVTSD2SSrm, 0 },
+ { X86::CVTSI2SD64rr, X86::CVTSI2SD64rm, 0 },
+ { X86::CVTSI2SDrr, X86::CVTSI2SDrm, 0 },
+ { X86::CVTSI2SS64rr, X86::CVTSI2SS64rm, 0 },
+ { X86::CVTSI2SSrr, X86::CVTSI2SSrm, 0 },
+ { X86::CVTSS2SDrr, X86::CVTSS2SDrm, 0 },
+ { X86::CVTTSD2SI64rr, X86::CVTTSD2SI64rm, 0 },
+ { X86::CVTTSD2SIrr, X86::CVTTSD2SIrm, 0 },
+ { X86::CVTTSS2SI64rr, X86::CVTTSS2SI64rm, 0 },
+ { X86::CVTTSS2SIrr, X86::CVTTSS2SIrm, 0 },
+ { X86::FsMOVAPDrr, X86::MOVSDrm, 0 },
+ { X86::FsMOVAPSrr, X86::MOVSSrm, 0 },
+ { X86::IMUL16rri, X86::IMUL16rmi, 0 },
+ { X86::IMUL16rri8, X86::IMUL16rmi8, 0 },
+ { X86::IMUL32rri, X86::IMUL32rmi, 0 },
+ { X86::IMUL32rri8, X86::IMUL32rmi8, 0 },
+ { X86::IMUL64rri32, X86::IMUL64rmi32, 0 },
+ { X86::IMUL64rri8, X86::IMUL64rmi8, 0 },
+ { X86::Int_CMPSDrr, X86::Int_CMPSDrm, 0 },
+ { X86::Int_CMPSSrr, X86::Int_CMPSSrm, 0 },
+ { X86::Int_COMISDrr, X86::Int_COMISDrm, 0 },
+ { X86::Int_COMISSrr, X86::Int_COMISSrm, 0 },
+ { X86::Int_CVTDQ2PDrr, X86::Int_CVTDQ2PDrm, 16 },
+ { X86::Int_CVTDQ2PSrr, X86::Int_CVTDQ2PSrm, 16 },
+ { X86::Int_CVTPD2DQrr, X86::Int_CVTPD2DQrm, 16 },
+ { X86::Int_CVTPD2PSrr, X86::Int_CVTPD2PSrm, 16 },
+ { X86::Int_CVTPS2DQrr, X86::Int_CVTPS2DQrm, 16 },
+ { X86::Int_CVTPS2PDrr, X86::Int_CVTPS2PDrm, 0 },
+ { X86::Int_CVTSD2SI64rr,X86::Int_CVTSD2SI64rm, 0 },
+ { X86::Int_CVTSD2SIrr, X86::Int_CVTSD2SIrm, 0 },
+ { X86::Int_CVTSD2SSrr, X86::Int_CVTSD2SSrm, 0 },
+ { X86::Int_CVTSI2SD64rr,X86::Int_CVTSI2SD64rm, 0 },
+ { X86::Int_CVTSI2SDrr, X86::Int_CVTSI2SDrm, 0 },
+ { X86::Int_CVTSI2SS64rr,X86::Int_CVTSI2SS64rm, 0 },
+ { X86::Int_CVTSI2SSrr, X86::Int_CVTSI2SSrm, 0 },
+ { X86::Int_CVTSS2SDrr, X86::Int_CVTSS2SDrm, 0 },
+ { X86::Int_CVTSS2SI64rr,X86::Int_CVTSS2SI64rm, 0 },
+ { X86::Int_CVTSS2SIrr, X86::Int_CVTSS2SIrm, 0 },
+ { X86::Int_CVTTPD2DQrr, X86::Int_CVTTPD2DQrm, 16 },
+ { X86::Int_CVTTPS2DQrr, X86::Int_CVTTPS2DQrm, 16 },
+ { X86::Int_CVTTSD2SI64rr,X86::Int_CVTTSD2SI64rm, 0 },
+ { X86::Int_CVTTSD2SIrr, X86::Int_CVTTSD2SIrm, 0 },
+ { X86::Int_CVTTSS2SI64rr,X86::Int_CVTTSS2SI64rm, 0 },
+ { X86::Int_CVTTSS2SIrr, X86::Int_CVTTSS2SIrm, 0 },
+ { X86::Int_UCOMISDrr, X86::Int_UCOMISDrm, 0 },
+ { X86::Int_UCOMISSrr, X86::Int_UCOMISSrm, 0 },
+ { X86::MOV16rr, X86::MOV16rm, 0 },
+ { X86::MOV32rr, X86::MOV32rm, 0 },
+ { X86::MOV64rr, X86::MOV64rm, 0 },
+ { X86::MOV64toPQIrr, X86::MOVQI2PQIrm, 0 },
+ { X86::MOV64toSDrr, X86::MOV64toSDrm, 0 },
+ { X86::MOV8rr, X86::MOV8rm, 0 },
+ { X86::MOVAPDrr, X86::MOVAPDrm, 16 },
+ { X86::MOVAPSrr, X86::MOVAPSrm, 16 },
+ { X86::MOVDDUPrr, X86::MOVDDUPrm, 0 },
+ { X86::MOVDI2PDIrr, X86::MOVDI2PDIrm, 0 },
+ { X86::MOVDI2SSrr, X86::MOVDI2SSrm, 0 },
+ { X86::MOVDQArr, X86::MOVDQArm, 16 },
+ { X86::MOVSD2PDrr, X86::MOVSD2PDrm, 0 },
+ { X86::MOVSDrr, X86::MOVSDrm, 0 },
+ { X86::MOVSHDUPrr, X86::MOVSHDUPrm, 16 },
+ { X86::MOVSLDUPrr, X86::MOVSLDUPrm, 16 },
+ { X86::MOVSS2PSrr, X86::MOVSS2PSrm, 0 },
+ { X86::MOVSSrr, X86::MOVSSrm, 0 },
+ { X86::MOVSX16rr8, X86::MOVSX16rm8, 0 },
+ { X86::MOVSX32rr16, X86::MOVSX32rm16, 0 },
+ { X86::MOVSX32rr8, X86::MOVSX32rm8, 0 },
+ { X86::MOVSX64rr16, X86::MOVSX64rm16, 0 },
+ { X86::MOVSX64rr32, X86::MOVSX64rm32, 0 },
+ { X86::MOVSX64rr8, X86::MOVSX64rm8, 0 },
+ { X86::MOVUPDrr, X86::MOVUPDrm, 16 },
+ { X86::MOVUPSrr, X86::MOVUPSrm, 16 },
+ { X86::MOVZDI2PDIrr, X86::MOVZDI2PDIrm, 0 },
+ { X86::MOVZQI2PQIrr, X86::MOVZQI2PQIrm, 0 },
+ { X86::MOVZPQILo2PQIrr, X86::MOVZPQILo2PQIrm, 16 },
+ { X86::MOVZX16rr8, X86::MOVZX16rm8, 0 },
+ { X86::MOVZX32rr16, X86::MOVZX32rm16, 0 },
+ { X86::MOVZX32_NOREXrr8, X86::MOVZX32_NOREXrm8, 0 },
+ { X86::MOVZX32rr8, X86::MOVZX32rm8, 0 },
+ { X86::MOVZX64rr16, X86::MOVZX64rm16, 0 },
+ { X86::MOVZX64rr32, X86::MOVZX64rm32, 0 },
+ { X86::MOVZX64rr8, X86::MOVZX64rm8, 0 },
+ { X86::PSHUFDri, X86::PSHUFDmi, 16 },
+ { X86::PSHUFHWri, X86::PSHUFHWmi, 16 },
+ { X86::PSHUFLWri, X86::PSHUFLWmi, 16 },
+ { X86::RCPPSr, X86::RCPPSm, 16 },
+ { X86::RCPPSr_Int, X86::RCPPSm_Int, 16 },
+ { X86::RSQRTPSr, X86::RSQRTPSm, 16 },
+ { X86::RSQRTPSr_Int, X86::RSQRTPSm_Int, 16 },
+ { X86::RSQRTSSr, X86::RSQRTSSm, 0 },
+ { X86::RSQRTSSr_Int, X86::RSQRTSSm_Int, 0 },
+ { X86::SQRTPDr, X86::SQRTPDm, 16 },
+ { X86::SQRTPDr_Int, X86::SQRTPDm_Int, 16 },
+ { X86::SQRTPSr, X86::SQRTPSm, 16 },
+ { X86::SQRTPSr_Int, X86::SQRTPSm_Int, 16 },
+ { X86::SQRTSDr, X86::SQRTSDm, 0 },
+ { X86::SQRTSDr_Int, X86::SQRTSDm_Int, 0 },
+ { X86::SQRTSSr, X86::SQRTSSm, 0 },
+ { X86::SQRTSSr_Int, X86::SQRTSSm_Int, 0 },
+ { X86::TEST16rr, X86::TEST16rm, 0 },
+ { X86::TEST32rr, X86::TEST32rm, 0 },
+ { X86::TEST64rr, X86::TEST64rm, 0 },
+ { X86::TEST8rr, X86::TEST8rm, 0 },
// FIXME: TEST*rr EAX,EAX ---> CMP [mem], 0
- { X86::UCOMISDrr, X86::UCOMISDrm },
- { X86::UCOMISSrr, X86::UCOMISSrm }
+ { X86::UCOMISDrr, X86::UCOMISDrm, 0 },
+ { X86::UCOMISSrr, X86::UCOMISSrm, 0 }
};
for (unsigned i = 0, e = array_lengthof(OpTbl1); i != e; ++i) {
unsigned RegOp = OpTbl1[i][0];
unsigned MemOp = OpTbl1[i][1];
+ unsigned Align = OpTbl1[i][2];
if (!RegOp2MemOpTable1.insert(std::make_pair((unsigned*)RegOp,
- MemOp)).second)
+ std::make_pair(MemOp,Align))).second)
assert(false && "Duplicated entries?");
- unsigned AuxInfo = 1 | (1 << 4); // Index 1, folded load
+ // Index 1, folded load
+ unsigned AuxInfo = 1 | (1 << 4);
if (RegOp != X86::FsMOVAPDrr && RegOp != X86::FsMOVAPSrr)
if (!MemOp2RegOpTable.insert(std::make_pair((unsigned*)MemOp,
std::make_pair(RegOp, AuxInfo))).second)
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::CMOVNO16rr, X86::CMOVNO16rm },
- { X86::CMOVNO32rr, X86::CMOVNO32rm },
- { X86::CMOVNO64rr, X86::CMOVNO64rm },
- { 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::CMOVO16rr, X86::CMOVO16rm },
- { X86::CMOVO32rr, X86::CMOVO32rm },
- { X86::CMOVO64rr, X86::CMOVO64rm },
- { 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::FsANDNPDrr, X86::FsANDNPDrm },
- { X86::FsANDNPSrr, X86::FsANDNPSrm },
- { X86::FsANDPDrr, X86::FsANDPDrm },
- { X86::FsANDPSrr, X86::FsANDPSrm },
- { X86::FsORPDrr, X86::FsORPDrm },
- { X86::FsORPSrr, X86::FsORPSrm },
- { X86::FsXORPDrr, X86::FsXORPDrm },
- { X86::FsXORPSrr, X86::FsXORPSrm },
- { 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::PMULDQrr, X86::PMULDQrm },
- { X86::PMULHUWrr, X86::PMULHUWrm },
- { X86::PMULHWrr, X86::PMULHWrm },
- { X86::PMULLDrr, X86::PMULLDrm },
- { X86::PMULLDrr_int, X86::PMULLDrm_int },
- { 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 },
+ static const unsigned OpTbl2[][3] = {
+ { X86::ADC32rr, X86::ADC32rm, 0 },
+ { X86::ADC64rr, X86::ADC64rm, 0 },
+ { X86::ADD16rr, X86::ADD16rm, 0 },
+ { X86::ADD32rr, X86::ADD32rm, 0 },
+ { X86::ADD64rr, X86::ADD64rm, 0 },
+ { X86::ADD8rr, X86::ADD8rm, 0 },
+ { X86::ADDPDrr, X86::ADDPDrm, 16 },
+ { X86::ADDPSrr, X86::ADDPSrm, 16 },
+ { X86::ADDSDrr, X86::ADDSDrm, 0 },
+ { X86::ADDSSrr, X86::ADDSSrm, 0 },
+ { X86::ADDSUBPDrr, X86::ADDSUBPDrm, 16 },
+ { X86::ADDSUBPSrr, X86::ADDSUBPSrm, 16 },
+ { X86::AND16rr, X86::AND16rm, 0 },
+ { X86::AND32rr, X86::AND32rm, 0 },
+ { X86::AND64rr, X86::AND64rm, 0 },
+ { X86::AND8rr, X86::AND8rm, 0 },
+ { X86::ANDNPDrr, X86::ANDNPDrm, 16 },
+ { X86::ANDNPSrr, X86::ANDNPSrm, 16 },
+ { X86::ANDPDrr, X86::ANDPDrm, 16 },
+ { X86::ANDPSrr, X86::ANDPSrm, 16 },
+ { X86::CMOVA16rr, X86::CMOVA16rm, 0 },
+ { X86::CMOVA32rr, X86::CMOVA32rm, 0 },
+ { X86::CMOVA64rr, X86::CMOVA64rm, 0 },
+ { X86::CMOVAE16rr, X86::CMOVAE16rm, 0 },
+ { X86::CMOVAE32rr, X86::CMOVAE32rm, 0 },
+ { X86::CMOVAE64rr, X86::CMOVAE64rm, 0 },
+ { X86::CMOVB16rr, X86::CMOVB16rm, 0 },
+ { X86::CMOVB32rr, X86::CMOVB32rm, 0 },
+ { X86::CMOVB64rr, X86::CMOVB64rm, 0 },
+ { X86::CMOVBE16rr, X86::CMOVBE16rm, 0 },
+ { X86::CMOVBE32rr, X86::CMOVBE32rm, 0 },
+ { X86::CMOVBE64rr, X86::CMOVBE64rm, 0 },
+ { X86::CMOVE16rr, X86::CMOVE16rm, 0 },
+ { X86::CMOVE32rr, X86::CMOVE32rm, 0 },
+ { X86::CMOVE64rr, X86::CMOVE64rm, 0 },
+ { X86::CMOVG16rr, X86::CMOVG16rm, 0 },
+ { X86::CMOVG32rr, X86::CMOVG32rm, 0 },
+ { X86::CMOVG64rr, X86::CMOVG64rm, 0 },
+ { X86::CMOVGE16rr, X86::CMOVGE16rm, 0 },
+ { X86::CMOVGE32rr, X86::CMOVGE32rm, 0 },
+ { X86::CMOVGE64rr, X86::CMOVGE64rm, 0 },
+ { X86::CMOVL16rr, X86::CMOVL16rm, 0 },
+ { X86::CMOVL32rr, X86::CMOVL32rm, 0 },
+ { X86::CMOVL64rr, X86::CMOVL64rm, 0 },
+ { X86::CMOVLE16rr, X86::CMOVLE16rm, 0 },
+ { X86::CMOVLE32rr, X86::CMOVLE32rm, 0 },
+ { X86::CMOVLE64rr, X86::CMOVLE64rm, 0 },
+ { X86::CMOVNE16rr, X86::CMOVNE16rm, 0 },
+ { X86::CMOVNE32rr, X86::CMOVNE32rm, 0 },
+ { X86::CMOVNE64rr, X86::CMOVNE64rm, 0 },
+ { X86::CMOVNO16rr, X86::CMOVNO16rm, 0 },
+ { X86::CMOVNO32rr, X86::CMOVNO32rm, 0 },
+ { X86::CMOVNO64rr, X86::CMOVNO64rm, 0 },
+ { X86::CMOVNP16rr, X86::CMOVNP16rm, 0 },
+ { X86::CMOVNP32rr, X86::CMOVNP32rm, 0 },
+ { X86::CMOVNP64rr, X86::CMOVNP64rm, 0 },
+ { X86::CMOVNS16rr, X86::CMOVNS16rm, 0 },
+ { X86::CMOVNS32rr, X86::CMOVNS32rm, 0 },
+ { X86::CMOVNS64rr, X86::CMOVNS64rm, 0 },
+ { X86::CMOVO16rr, X86::CMOVO16rm, 0 },
+ { X86::CMOVO32rr, X86::CMOVO32rm, 0 },
+ { X86::CMOVO64rr, X86::CMOVO64rm, 0 },
+ { X86::CMOVP16rr, X86::CMOVP16rm, 0 },
+ { X86::CMOVP32rr, X86::CMOVP32rm, 0 },
+ { X86::CMOVP64rr, X86::CMOVP64rm, 0 },
+ { X86::CMOVS16rr, X86::CMOVS16rm, 0 },
+ { X86::CMOVS32rr, X86::CMOVS32rm, 0 },
+ { X86::CMOVS64rr, X86::CMOVS64rm, 0 },
+ { X86::CMPPDrri, X86::CMPPDrmi, 16 },
+ { X86::CMPPSrri, X86::CMPPSrmi, 16 },
+ { X86::CMPSDrr, X86::CMPSDrm, 0 },
+ { X86::CMPSSrr, X86::CMPSSrm, 0 },
+ { X86::DIVPDrr, X86::DIVPDrm, 16 },
+ { X86::DIVPSrr, X86::DIVPSrm, 16 },
+ { X86::DIVSDrr, X86::DIVSDrm, 0 },
+ { X86::DIVSSrr, X86::DIVSSrm, 0 },
+ { X86::FsANDNPDrr, X86::FsANDNPDrm, 16 },
+ { X86::FsANDNPSrr, X86::FsANDNPSrm, 16 },
+ { X86::FsANDPDrr, X86::FsANDPDrm, 16 },
+ { X86::FsANDPSrr, X86::FsANDPSrm, 16 },
+ { X86::FsORPDrr, X86::FsORPDrm, 16 },
+ { X86::FsORPSrr, X86::FsORPSrm, 16 },
+ { X86::FsXORPDrr, X86::FsXORPDrm, 16 },
+ { X86::FsXORPSrr, X86::FsXORPSrm, 16 },
+ { X86::HADDPDrr, X86::HADDPDrm, 16 },
+ { X86::HADDPSrr, X86::HADDPSrm, 16 },
+ { X86::HSUBPDrr, X86::HSUBPDrm, 16 },
+ { X86::HSUBPSrr, X86::HSUBPSrm, 16 },
+ { X86::IMUL16rr, X86::IMUL16rm, 0 },
+ { X86::IMUL32rr, X86::IMUL32rm, 0 },
+ { X86::IMUL64rr, X86::IMUL64rm, 0 },
+ { X86::MAXPDrr, X86::MAXPDrm, 16 },
+ { X86::MAXPDrr_Int, X86::MAXPDrm_Int, 16 },
+ { X86::MAXPSrr, X86::MAXPSrm, 16 },
+ { X86::MAXPSrr_Int, X86::MAXPSrm_Int, 16 },
+ { X86::MAXSDrr, X86::MAXSDrm, 0 },
+ { X86::MAXSDrr_Int, X86::MAXSDrm_Int, 0 },
+ { X86::MAXSSrr, X86::MAXSSrm, 0 },
+ { X86::MAXSSrr_Int, X86::MAXSSrm_Int, 0 },
+ { X86::MINPDrr, X86::MINPDrm, 16 },
+ { X86::MINPDrr_Int, X86::MINPDrm_Int, 16 },
+ { X86::MINPSrr, X86::MINPSrm, 16 },
+ { X86::MINPSrr_Int, X86::MINPSrm_Int, 16 },
+ { X86::MINSDrr, X86::MINSDrm, 0 },
+ { X86::MINSDrr_Int, X86::MINSDrm_Int, 0 },
+ { X86::MINSSrr, X86::MINSSrm, 0 },
+ { X86::MINSSrr_Int, X86::MINSSrm_Int, 0 },
+ { X86::MULPDrr, X86::MULPDrm, 16 },
+ { X86::MULPSrr, X86::MULPSrm, 16 },
+ { X86::MULSDrr, X86::MULSDrm, 0 },
+ { X86::MULSSrr, X86::MULSSrm, 0 },
+ { X86::OR16rr, X86::OR16rm, 0 },
+ { X86::OR32rr, X86::OR32rm, 0 },
+ { X86::OR64rr, X86::OR64rm, 0 },
+ { X86::OR8rr, X86::OR8rm, 0 },
+ { X86::ORPDrr, X86::ORPDrm, 16 },
+ { X86::ORPSrr, X86::ORPSrm, 16 },
+ { X86::PACKSSDWrr, X86::PACKSSDWrm, 16 },
+ { X86::PACKSSWBrr, X86::PACKSSWBrm, 16 },
+ { X86::PACKUSWBrr, X86::PACKUSWBrm, 16 },
+ { X86::PADDBrr, X86::PADDBrm, 16 },
+ { X86::PADDDrr, X86::PADDDrm, 16 },
+ { X86::PADDQrr, X86::PADDQrm, 16 },
+ { X86::PADDSBrr, X86::PADDSBrm, 16 },
+ { X86::PADDSWrr, X86::PADDSWrm, 16 },
+ { X86::PADDWrr, X86::PADDWrm, 16 },
+ { X86::PANDNrr, X86::PANDNrm, 16 },
+ { X86::PANDrr, X86::PANDrm, 16 },
+ { X86::PAVGBrr, X86::PAVGBrm, 16 },
+ { X86::PAVGWrr, X86::PAVGWrm, 16 },
+ { X86::PCMPEQBrr, X86::PCMPEQBrm, 16 },
+ { X86::PCMPEQDrr, X86::PCMPEQDrm, 16 },
+ { X86::PCMPEQWrr, X86::PCMPEQWrm, 16 },
+ { X86::PCMPGTBrr, X86::PCMPGTBrm, 16 },
+ { X86::PCMPGTDrr, X86::PCMPGTDrm, 16 },
+ { X86::PCMPGTWrr, X86::PCMPGTWrm, 16 },
+ { X86::PINSRWrri, X86::PINSRWrmi, 16 },
+ { X86::PMADDWDrr, X86::PMADDWDrm, 16 },
+ { X86::PMAXSWrr, X86::PMAXSWrm, 16 },
+ { X86::PMAXUBrr, X86::PMAXUBrm, 16 },
+ { X86::PMINSWrr, X86::PMINSWrm, 16 },
+ { X86::PMINUBrr, X86::PMINUBrm, 16 },
+ { X86::PMULDQrr, X86::PMULDQrm, 16 },
+ { X86::PMULHUWrr, X86::PMULHUWrm, 16 },
+ { X86::PMULHWrr, X86::PMULHWrm, 16 },
+ { X86::PMULLDrr, X86::PMULLDrm, 16 },
+ { X86::PMULLDrr_int, X86::PMULLDrm_int, 16 },
+ { X86::PMULLWrr, X86::PMULLWrm, 16 },
+ { X86::PMULUDQrr, X86::PMULUDQrm, 16 },
+ { X86::PORrr, X86::PORrm, 16 },
+ { X86::PSADBWrr, X86::PSADBWrm, 16 },
+ { X86::PSLLDrr, X86::PSLLDrm, 16 },
+ { X86::PSLLQrr, X86::PSLLQrm, 16 },
+ { X86::PSLLWrr, X86::PSLLWrm, 16 },
+ { X86::PSRADrr, X86::PSRADrm, 16 },
+ { X86::PSRAWrr, X86::PSRAWrm, 16 },
+ { X86::PSRLDrr, X86::PSRLDrm, 16 },
+ { X86::PSRLQrr, X86::PSRLQrm, 16 },
+ { X86::PSRLWrr, X86::PSRLWrm, 16 },
+ { X86::PSUBBrr, X86::PSUBBrm, 16 },
+ { X86::PSUBDrr, X86::PSUBDrm, 16 },
+ { X86::PSUBSBrr, X86::PSUBSBrm, 16 },
+ { X86::PSUBSWrr, X86::PSUBSWrm, 16 },
+ { X86::PSUBWrr, X86::PSUBWrm, 16 },
+ { X86::PUNPCKHBWrr, X86::PUNPCKHBWrm, 16 },
+ { X86::PUNPCKHDQrr, X86::PUNPCKHDQrm, 16 },
+ { X86::PUNPCKHQDQrr, X86::PUNPCKHQDQrm, 16 },
+ { X86::PUNPCKHWDrr, X86::PUNPCKHWDrm, 16 },
+ { X86::PUNPCKLBWrr, X86::PUNPCKLBWrm, 16 },
+ { X86::PUNPCKLDQrr, X86::PUNPCKLDQrm, 16 },
+ { X86::PUNPCKLQDQrr, X86::PUNPCKLQDQrm, 16 },
+ { X86::PUNPCKLWDrr, X86::PUNPCKLWDrm, 16 },
+ { X86::PXORrr, X86::PXORrm, 16 },
+ { X86::SBB32rr, X86::SBB32rm, 0 },
+ { X86::SBB64rr, X86::SBB64rm, 0 },
+ { X86::SHUFPDrri, X86::SHUFPDrmi, 16 },
+ { X86::SHUFPSrri, X86::SHUFPSrmi, 16 },
+ { X86::SUB16rr, X86::SUB16rm, 0 },
+ { X86::SUB32rr, X86::SUB32rm, 0 },
+ { X86::SUB64rr, X86::SUB64rm, 0 },
+ { X86::SUB8rr, X86::SUB8rm, 0 },
+ { X86::SUBPDrr, X86::SUBPDrm, 16 },
+ { X86::SUBPSrr, X86::SUBPSrm, 16 },
+ { X86::SUBSDrr, X86::SUBSDrm, 0 },
+ { X86::SUBSSrr, X86::SUBSSrm, 0 },
// 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 }
+ { X86::UNPCKHPDrr, X86::UNPCKHPDrm, 16 },
+ { X86::UNPCKHPSrr, X86::UNPCKHPSrm, 16 },
+ { X86::UNPCKLPDrr, X86::UNPCKLPDrm, 16 },
+ { X86::UNPCKLPSrr, X86::UNPCKLPSrm, 16 },
+ { X86::XOR16rr, X86::XOR16rm, 0 },
+ { X86::XOR32rr, X86::XOR32rm, 0 },
+ { X86::XOR64rr, X86::XOR64rm, 0 },
+ { X86::XOR8rr, X86::XOR8rm, 0 },
+ { X86::XORPDrr, X86::XORPDrm, 16 },
+ { X86::XORPSrr, X86::XORPSrm, 16 }
};
for (unsigned i = 0, e = array_lengthof(OpTbl2); i != e; ++i) {
unsigned RegOp = OpTbl2[i][0];
unsigned MemOp = OpTbl2[i][1];
+ unsigned Align = OpTbl2[i][2];
if (!RegOp2MemOpTable2.insert(std::make_pair((unsigned*)RegOp,
- MemOp)).second)
+ std::make_pair(MemOp,Align))).second)
assert(false && "Duplicated entries?");
- unsigned AuxInfo = 2 | (1 << 4); // Index 2, folded load
+ // Index 2, folded load
+ unsigned AuxInfo = 2 | (1 << 4);
if (!MemOp2RegOpTable.insert(std::make_pair((unsigned*)MemOp,
std::make_pair(RegOp, AuxInfo))).second)
AmbEntries.push_back(MemOp);
}
}
-unsigned X86InstrInfo::isLoadFromStackSlot(const MachineInstr *MI,
- int &FrameIndex) const {
- switch (MI->getOpcode()) {
+bool
+X86InstrInfo::isCoalescableExtInstr(const MachineInstr &MI,
+ unsigned &SrcReg, unsigned &DstReg,
+ unsigned &SubIdx) const {
+ switch (MI.getOpcode()) {
+ default: break;
+ case X86::MOVSX16rr8:
+ case X86::MOVZX16rr8:
+ case X86::MOVSX32rr8:
+ case X86::MOVZX32rr8:
+ case X86::MOVSX64rr8:
+ case X86::MOVZX64rr8:
+ if (!TM.getSubtarget<X86Subtarget>().is64Bit())
+ // It's not always legal to reference the low 8-bit of the larger
+ // register in 32-bit mode.
+ return false;
+ case X86::MOVSX32rr16:
+ case X86::MOVZX32rr16:
+ case X86::MOVSX64rr16:
+ case X86::MOVZX64rr16:
+ case X86::MOVSX64rr32:
+ case X86::MOVZX64rr32: {
+ if (MI.getOperand(0).getSubReg() || MI.getOperand(1).getSubReg())
+ // Be conservative.
+ return false;
+ SrcReg = MI.getOperand(1).getReg();
+ DstReg = MI.getOperand(0).getReg();
+ switch (MI.getOpcode()) {
+ default:
+ llvm_unreachable(0);
+ break;
+ case X86::MOVSX16rr8:
+ case X86::MOVZX16rr8:
+ case X86::MOVSX32rr8:
+ case X86::MOVZX32rr8:
+ case X86::MOVSX64rr8:
+ case X86::MOVZX64rr8:
+ SubIdx = 1;
+ break;
+ case X86::MOVSX32rr16:
+ case X86::MOVZX32rr16:
+ case X86::MOVSX64rr16:
+ case X86::MOVZX64rr16:
+ SubIdx = 3;
+ break;
+ case X86::MOVSX64rr32:
+ case X86::MOVZX64rr32:
+ SubIdx = 4;
+ break;
+ }
+ return true;
+ }
+ }
+ return false;
+}
+
+/// isFrameOperand - Return true and the FrameIndex if the specified
+/// operand and follow operands form a reference to the stack frame.
+bool X86InstrInfo::isFrameOperand(const MachineInstr *MI, unsigned int Op,
+ int &FrameIndex) const {
+ if (MI->getOperand(Op).isFI() && MI->getOperand(Op+1).isImm() &&
+ MI->getOperand(Op+2).isReg() && MI->getOperand(Op+3).isImm() &&
+ MI->getOperand(Op+1).getImm() == 1 &&
+ MI->getOperand(Op+2).getReg() == 0 &&
+ MI->getOperand(Op+3).getImm() == 0) {
+ FrameIndex = MI->getOperand(Op).getIndex();
+ return true;
+ }
+ return false;
+}
+
+static bool isFrameLoadOpcode(int Opcode) {
+ switch (Opcode) {
default: break;
case X86::MOV8rm:
case X86::MOV16rm:
case X86::MOVDQArm:
case X86::MMX_MOVD64rm:
case X86::MMX_MOVQ64rm:
- if (MI->getOperand(1).isFI() && MI->getOperand(2).isImm() &&
- MI->getOperand(3).isReg() && MI->getOperand(4).isImm() &&
- MI->getOperand(2).getImm() == 1 &&
- MI->getOperand(3).getReg() == 0 &&
- MI->getOperand(4).getImm() == 0) {
- FrameIndex = MI->getOperand(1).getIndex();
- return MI->getOperand(0).getReg();
- }
+ return true;
break;
}
- return 0;
+ return false;
}
-unsigned X86InstrInfo::isStoreToStackSlot(const MachineInstr *MI,
- int &FrameIndex) const {
- switch (MI->getOpcode()) {
+static bool isFrameStoreOpcode(int Opcode) {
+ switch (Opcode) {
default: break;
case X86::MOV8mr:
case X86::MOV16mr:
case X86::MMX_MOVD64mr:
case X86::MMX_MOVQ64mr:
case X86::MMX_MOVNTQmr:
- if (MI->getOperand(0).isFI() && MI->getOperand(1).isImm() &&
- MI->getOperand(2).isReg() && MI->getOperand(3).isImm() &&
- MI->getOperand(1).getImm() == 1 &&
- MI->getOperand(2).getReg() == 0 &&
- MI->getOperand(3).getImm() == 0) {
- FrameIndex = MI->getOperand(0).getIndex();
+ return true;
+ }
+ return false;
+}
+
+unsigned X86InstrInfo::isLoadFromStackSlot(const MachineInstr *MI,
+ int &FrameIndex) const {
+ if (isFrameLoadOpcode(MI->getOpcode()))
+ if (isFrameOperand(MI, 1, FrameIndex))
+ return MI->getOperand(0).getReg();
+ return 0;
+}
+
+unsigned X86InstrInfo::isLoadFromStackSlotPostFE(const MachineInstr *MI,
+ int &FrameIndex) const {
+ if (isFrameLoadOpcode(MI->getOpcode())) {
+ unsigned Reg;
+ if ((Reg = isLoadFromStackSlot(MI, FrameIndex)))
+ return Reg;
+ // Check for post-frame index elimination operations
+ const MachineMemOperand *Dummy;
+ return hasLoadFromStackSlot(MI, Dummy, FrameIndex);
+ }
+ return 0;
+}
+
+bool X86InstrInfo::hasLoadFromStackSlot(const MachineInstr *MI,
+ const MachineMemOperand *&MMO,
+ int &FrameIndex) const {
+ for (MachineInstr::mmo_iterator o = MI->memoperands_begin(),
+ oe = MI->memoperands_end();
+ o != oe;
+ ++o) {
+ if ((*o)->isLoad() && (*o)->getValue())
+ if (const FixedStackPseudoSourceValue *Value =
+ dyn_cast<const FixedStackPseudoSourceValue>((*o)->getValue())) {
+ FrameIndex = Value->getFrameIndex();
+ MMO = *o;
+ return true;
+ }
+ }
+ return false;
+}
+
+unsigned X86InstrInfo::isStoreToStackSlot(const MachineInstr *MI,
+ int &FrameIndex) const {
+ if (isFrameStoreOpcode(MI->getOpcode()))
+ if (isFrameOperand(MI, 0, FrameIndex))
return MI->getOperand(X86AddrNumOperands).getReg();
- }
- break;
+ return 0;
+}
+
+unsigned X86InstrInfo::isStoreToStackSlotPostFE(const MachineInstr *MI,
+ int &FrameIndex) const {
+ if (isFrameStoreOpcode(MI->getOpcode())) {
+ unsigned Reg;
+ if ((Reg = isStoreToStackSlot(MI, FrameIndex)))
+ return Reg;
+ // Check for post-frame index elimination operations
+ const MachineMemOperand *Dummy;
+ return hasStoreToStackSlot(MI, Dummy, FrameIndex);
}
return 0;
}
+bool X86InstrInfo::hasStoreToStackSlot(const MachineInstr *MI,
+ const MachineMemOperand *&MMO,
+ int &FrameIndex) const {
+ for (MachineInstr::mmo_iterator o = MI->memoperands_begin(),
+ oe = MI->memoperands_end();
+ o != oe;
+ ++o) {
+ if ((*o)->isStore() && (*o)->getValue())
+ if (const FixedStackPseudoSourceValue *Value =
+ dyn_cast<const FixedStackPseudoSourceValue>((*o)->getValue())) {
+ FrameIndex = Value->getFrameIndex();
+ MMO = *o;
+ return true;
+ }
+ }
+ return false;
+}
/// regIsPICBase - Return true if register is PIC base (i.e.g defined by
/// X86::MOVPC32r.
return isPICBase;
}
-/// isGVStub - Return true if the GV requires an extra load to get the
-/// real address.
-static inline bool isGVStub(GlobalValue *GV, X86TargetMachine &TM) {
- return TM.getSubtarget<X86Subtarget>().GVRequiresExtraLoad(GV, TM, false);
-}
-
bool
-X86InstrInfo::isReallyTriviallyReMaterializable(const MachineInstr *MI) const {
+X86InstrInfo::isReallyTriviallyReMaterializable(const MachineInstr *MI,
+ AliasAnalysis *AA) const {
switch (MI->getOpcode()) {
default: break;
case X86::MOV8rm:
case X86::MOVSSrm:
case X86::MOVSDrm:
case X86::MOVAPSrm:
+ case X86::MOVUPSrm:
+ case X86::MOVUPSrm_Int:
case X86::MOVAPDrm:
case X86::MOVDQArm:
case X86::MMX_MOVD64rm:
- case X86::MMX_MOVQ64rm: {
+ case X86::MMX_MOVQ64rm:
+ case X86::FsMOVAPSrm:
+ case X86::FsMOVAPDrm: {
// Loads from constant pools are trivially rematerializable.
if (MI->getOperand(1).isReg() &&
MI->getOperand(2).isImm() &&
MI->getOperand(3).isReg() && MI->getOperand(3).getReg() == 0 &&
- (MI->getOperand(4).isCPI() ||
- (MI->getOperand(4).isGlobal() &&
- isGVStub(MI->getOperand(4).getGlobal(), TM)))) {
+ MI->isInvariantLoad(AA)) {
unsigned BaseReg = MI->getOperand(1).getReg();
- if (BaseReg == 0)
+ if (BaseReg == 0 || BaseReg == X86::RIP)
return true;
// Allow re-materialization of PIC load.
if (!ReMatPICStubLoad && MI->getOperand(4).isGlobal())
/// isSafeToClobberEFLAGS - Return true if it's safe insert an instruction that
/// would clobber the EFLAGS condition register. Note the result may be
/// conservative. If it cannot definitely determine the safety after visiting
-/// two instructions it assumes it's not safe.
+/// a few instructions in each direction it assumes it's not safe.
static bool isSafeToClobberEFLAGS(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) {
// It's always safe to clobber EFLAGS at the end of a block.
return true;
// For compile time consideration, if we are not able to determine the
- // safety after visiting 2 instructions, we will assume it's not safe.
- for (unsigned i = 0; i < 2; ++i) {
+ // safety after visiting 4 instructions in each direction, we will assume
+ // it's not safe.
+ MachineBasicBlock::iterator Iter = I;
+ for (unsigned i = 0; i < 4; ++i) {
bool SeenDef = false;
- for (unsigned j = 0, e = I->getNumOperands(); j != e; ++j) {
- MachineOperand &MO = I->getOperand(j);
+ for (unsigned j = 0, e = Iter->getNumOperands(); j != e; ++j) {
+ MachineOperand &MO = Iter->getOperand(j);
if (!MO.isReg())
continue;
if (MO.getReg() == X86::EFLAGS) {
if (SeenDef)
// This instruction defines EFLAGS, no need to look any further.
return true;
- ++I;
+ ++Iter;
// If we make it to the end of the block, it's safe to clobber EFLAGS.
- if (I == MBB.end())
+ if (Iter == MBB.end())
+ return true;
+ }
+
+ Iter = I;
+ for (unsigned i = 0; i < 4; ++i) {
+ // If we make it to the beginning of the block, it's safe to clobber
+ // EFLAGS iff EFLAGS is not live-in.
+ if (Iter == MBB.begin())
+ return !MBB.isLiveIn(X86::EFLAGS);
+
+ --Iter;
+ bool SawKill = false;
+ for (unsigned j = 0, e = Iter->getNumOperands(); j != e; ++j) {
+ MachineOperand &MO = Iter->getOperand(j);
+ if (MO.isReg() && MO.getReg() == X86::EFLAGS) {
+ if (MO.isDef()) return MO.isDead();
+ if (MO.isKill()) SawKill = true;
+ }
+ }
+
+ if (SawKill)
+ // This instruction kills EFLAGS and doesn't redefine it, so
+ // there's no need to look further.
return true;
}
void X86InstrInfo::reMaterialize(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I,
- unsigned DestReg,
- const MachineInstr *Orig) const {
+ unsigned DestReg, unsigned SubIdx,
+ const MachineInstr *Orig,
+ const TargetRegisterInfo *TRI) const {
DebugLoc DL = DebugLoc::getUnknownLoc();
if (I != MBB.end()) DL = I->getDebugLoc();
- unsigned SubIdx = Orig->getOperand(0).isReg()
- ? Orig->getOperand(0).getSubReg() : 0;
- bool ChangeSubIdx = SubIdx != 0;
if (SubIdx && TargetRegisterInfo::isPhysicalRegister(DestReg)) {
- DestReg = RI.getSubReg(DestReg, SubIdx);
+ DestReg = TRI->getSubReg(DestReg, SubIdx);
SubIdx = 0;
}
// MOV32r0 etc. are implemented with xor which clobbers condition code.
// Re-materialize them as movri instructions to avoid side effects.
- bool Emitted = false;
- switch (Orig->getOpcode()) {
+ bool Clone = true;
+ unsigned Opc = Orig->getOpcode();
+ switch (Opc) {
default: break;
case X86::MOV8r0:
case X86::MOV16r0:
case X86::MOV32r0:
case X86::MOV64r0: {
if (!isSafeToClobberEFLAGS(MBB, I)) {
- unsigned Opc = 0;
- switch (Orig->getOpcode()) {
+ switch (Opc) {
default: break;
case X86::MOV8r0: Opc = X86::MOV8ri; break;
case X86::MOV16r0: Opc = X86::MOV16ri; break;
case X86::MOV32r0: Opc = X86::MOV32ri; break;
- case X86::MOV64r0: Opc = X86::MOV64ri32; break;
+ case X86::MOV64r0: Opc = X86::MOV64ri; break;
}
- BuildMI(MBB, I, DL, get(Opc), DestReg).addImm(0);
- Emitted = true;
+ Clone = false;
}
break;
}
}
- if (!Emitted) {
+ if (Clone) {
MachineInstr *MI = MBB.getParent()->CloneMachineInstr(Orig);
MI->getOperand(0).setReg(DestReg);
MBB.insert(I, MI);
+ } else {
+ BuildMI(MBB, I, DL, get(Opc), DestReg).addImm(0);
}
- if (ChangeSubIdx) {
- MachineInstr *NewMI = prior(I);
- NewMI->getOperand(0).setSubReg(SubIdx);
- }
-}
-
-/// isInvariantLoad - Return true if the specified instruction (which is marked
-/// mayLoad) is loading from a location whose value is invariant across the
-/// function. For example, loading a value from the constant pool or from
-/// from the argument area of a function if it does not change. This should
-/// only return true of *all* loads the instruction does are invariant (if it
-/// does multiple loads).
-bool X86InstrInfo::isInvariantLoad(const MachineInstr *MI) const {
- // This code cares about loads from three cases: constant pool entries,
- // invariant argument slots, and global stubs. In order to handle these cases
- // for all of the myriad of X86 instructions, we just scan for a CP/FI/GV
- // operand and base our analysis on it. This is safe because the address of
- // none of these three cases is ever used as anything other than a load base
- // and X86 doesn't have any instructions that load from multiple places.
-
- for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
- const MachineOperand &MO = MI->getOperand(i);
- // Loads from constant pools are trivially invariant.
- if (MO.isCPI())
- return true;
-
- if (MO.isGlobal())
- return isGVStub(MO.getGlobal(), TM);
-
- // If this is a load from an invariant stack slot, the load is a constant.
- if (MO.isFI()) {
- const MachineFrameInfo &MFI =
- *MI->getParent()->getParent()->getFrameInfo();
- int Idx = MO.getIndex();
- return MFI.isFixedObjectIndex(Idx) && MFI.isImmutableObjectIndex(Idx);
- }
- }
-
- // All other instances of these instructions are presumed to have other
- // issues.
- return false;
+ MachineInstr *NewMI = prior(I);
+ NewMI->getOperand(0).setSubReg(SubIdx);
}
/// hasLiveCondCodeDef - True if MI has a condition code def, e.g. EFLAGS, that
return false;
}
+/// convertToThreeAddressWithLEA - Helper for convertToThreeAddress when
+/// 16-bit LEA is disabled, use 32-bit LEA to form 3-address code by promoting
+/// to a 32-bit superregister and then truncating back down to a 16-bit
+/// subregister.
+MachineInstr *
+X86InstrInfo::convertToThreeAddressWithLEA(unsigned MIOpc,
+ MachineFunction::iterator &MFI,
+ MachineBasicBlock::iterator &MBBI,
+ LiveVariables *LV) const {
+ MachineInstr *MI = MBBI;
+ unsigned Dest = MI->getOperand(0).getReg();
+ unsigned Src = MI->getOperand(1).getReg();
+ bool isDead = MI->getOperand(0).isDead();
+ bool isKill = MI->getOperand(1).isKill();
+
+ unsigned Opc = TM.getSubtarget<X86Subtarget>().is64Bit()
+ ? X86::LEA64_32r : X86::LEA32r;
+ MachineRegisterInfo &RegInfo = MFI->getParent()->getRegInfo();
+ unsigned leaInReg = RegInfo.createVirtualRegister(&X86::GR32RegClass);
+ unsigned leaOutReg = RegInfo.createVirtualRegister(&X86::GR32RegClass);
+
+ // Build and insert into an implicit UNDEF value. This is OK because
+ // well be shifting and then extracting the lower 16-bits.
+ // This has the potential to cause partial register stall. e.g.
+ // movw (%rbp,%rcx,2), %dx
+ // leal -65(%rdx), %esi
+ // But testing has shown this *does* help performance in 64-bit mode (at
+ // least on modern x86 machines).
+ BuildMI(*MFI, MBBI, MI->getDebugLoc(), get(X86::IMPLICIT_DEF), leaInReg);
+ MachineInstr *InsMI =
+ BuildMI(*MFI, MBBI, MI->getDebugLoc(), get(X86::INSERT_SUBREG),leaInReg)
+ .addReg(leaInReg)
+ .addReg(Src, getKillRegState(isKill))
+ .addImm(X86::SUBREG_16BIT);
+
+ MachineInstrBuilder MIB = BuildMI(*MFI, MBBI, MI->getDebugLoc(),
+ get(Opc), leaOutReg);
+ switch (MIOpc) {
+ default:
+ llvm_unreachable(0);
+ break;
+ case X86::SHL16ri: {
+ unsigned ShAmt = MI->getOperand(2).getImm();
+ MIB.addReg(0).addImm(1 << ShAmt)
+ .addReg(leaInReg, RegState::Kill).addImm(0);
+ break;
+ }
+ case X86::INC16r:
+ case X86::INC64_16r:
+ addLeaRegOffset(MIB, leaInReg, true, 1);
+ break;
+ case X86::DEC16r:
+ case X86::DEC64_16r:
+ addLeaRegOffset(MIB, leaInReg, true, -1);
+ break;
+ case X86::ADD16ri:
+ case X86::ADD16ri8:
+ addLeaRegOffset(MIB, leaInReg, true, MI->getOperand(2).getImm());
+ break;
+ case X86::ADD16rr: {
+ unsigned Src2 = MI->getOperand(2).getReg();
+ bool isKill2 = MI->getOperand(2).isKill();
+ unsigned leaInReg2 = 0;
+ MachineInstr *InsMI2 = 0;
+ if (Src == Src2) {
+ // ADD16rr %reg1028<kill>, %reg1028
+ // just a single insert_subreg.
+ addRegReg(MIB, leaInReg, true, leaInReg, false);
+ } else {
+ leaInReg2 = RegInfo.createVirtualRegister(&X86::GR32RegClass);
+ // Build and insert into an implicit UNDEF value. This is OK because
+ // well be shifting and then extracting the lower 16-bits.
+ BuildMI(*MFI, MIB, MI->getDebugLoc(), get(X86::IMPLICIT_DEF), leaInReg2);
+ InsMI2 =
+ BuildMI(*MFI, MIB, MI->getDebugLoc(), get(X86::INSERT_SUBREG),leaInReg2)
+ .addReg(leaInReg2)
+ .addReg(Src2, getKillRegState(isKill2))
+ .addImm(X86::SUBREG_16BIT);
+ addRegReg(MIB, leaInReg, true, leaInReg2, true);
+ }
+ if (LV && isKill2 && InsMI2)
+ LV->replaceKillInstruction(Src2, MI, InsMI2);
+ break;
+ }
+ }
+
+ MachineInstr *NewMI = MIB;
+ MachineInstr *ExtMI =
+ BuildMI(*MFI, MBBI, MI->getDebugLoc(), get(X86::EXTRACT_SUBREG))
+ .addReg(Dest, RegState::Define | getDeadRegState(isDead))
+ .addReg(leaOutReg, RegState::Kill)
+ .addImm(X86::SUBREG_16BIT);
+
+ if (LV) {
+ // Update live variables
+ LV->getVarInfo(leaInReg).Kills.push_back(NewMI);
+ LV->getVarInfo(leaOutReg).Kills.push_back(ExtMI);
+ if (isKill)
+ LV->replaceKillInstruction(Src, MI, InsMI);
+ if (isDead)
+ LV->replaceKillInstruction(Dest, MI, ExtMI);
+ }
+
+ return ExtMI;
+}
+
/// convertToThreeAddress - This method must be implemented by targets that
/// set the M_CONVERTIBLE_TO_3_ADDR flag. When this flag is set, the target
/// may be able to convert a two-address instruction into a true
MachineInstr *NewMI = NULL;
// FIXME: 16-bit LEA's are really slow on Athlons, but not bad on P4's. When
// we have better subtarget support, enable the 16-bit LEA generation here.
+ // 16-bit LEA is also slow on Core2.
bool DisableLEA16 = true;
+ bool is64Bit = TM.getSubtarget<X86Subtarget>().is64Bit();
unsigned MIOpc = MI->getOpcode();
switch (MIOpc) {
unsigned A = MI->getOperand(0).getReg();
unsigned M = MI->getOperand(3).getImm();
NewMI = BuildMI(MF, MI->getDebugLoc(), get(X86::PSHUFDri))
- .addReg(A, true, false, false, isDead)
- .addReg(B, false, false, isKill).addImm(M);
+ .addReg(A, RegState::Define | getDeadRegState(isDead))
+ .addReg(B, getKillRegState(isKill)).addImm(M);
break;
}
case X86::SHL64ri: {
if (ShAmt == 0 || ShAmt >= 4) return 0;
NewMI = BuildMI(MF, MI->getDebugLoc(), get(X86::LEA64r))
- .addReg(Dest, true, false, false, isDead)
- .addReg(0).addImm(1 << ShAmt).addReg(Src, false, false, isKill).addImm(0);
+ .addReg(Dest, RegState::Define | getDeadRegState(isDead))
+ .addReg(0).addImm(1 << ShAmt)
+ .addReg(Src, getKillRegState(isKill))
+ .addImm(0);
break;
}
case X86::SHL32ri: {
unsigned ShAmt = MI->getOperand(2).getImm();
if (ShAmt == 0 || ShAmt >= 4) return 0;
- unsigned Opc = TM.getSubtarget<X86Subtarget>().is64Bit() ?
- X86::LEA64_32r : X86::LEA32r;
+ unsigned Opc = is64Bit ? X86::LEA64_32r : X86::LEA32r;
NewMI = BuildMI(MF, MI->getDebugLoc(), get(Opc))
- .addReg(Dest, true, false, false, isDead)
+ .addReg(Dest, RegState::Define | getDeadRegState(isDead))
.addReg(0).addImm(1 << ShAmt)
- .addReg(Src, false, false, isKill).addImm(0);
+ .addReg(Src, getKillRegState(isKill)).addImm(0);
break;
}
case X86::SHL16ri: {
unsigned ShAmt = MI->getOperand(2).getImm();
if (ShAmt == 0 || ShAmt >= 4) return 0;
- if (DisableLEA16) {
- // If 16-bit LEA is disabled, use 32-bit LEA via subregisters.
- MachineRegisterInfo &RegInfo = MFI->getParent()->getRegInfo();
- unsigned Opc = TM.getSubtarget<X86Subtarget>().is64Bit()
- ? X86::LEA64_32r : X86::LEA32r;
- unsigned leaInReg = RegInfo.createVirtualRegister(&X86::GR32RegClass);
- unsigned leaOutReg = RegInfo.createVirtualRegister(&X86::GR32RegClass);
-
- // Build and insert into an implicit UNDEF value. This is OK because
- // well be shifting and then extracting the lower 16-bits.
- BuildMI(*MFI, MBBI, MI->getDebugLoc(), get(X86::IMPLICIT_DEF), leaInReg);
- MachineInstr *InsMI =
- BuildMI(*MFI, MBBI, MI->getDebugLoc(), get(X86::INSERT_SUBREG),leaInReg)
- .addReg(leaInReg).addReg(Src, false, false, isKill)
- .addImm(X86::SUBREG_16BIT);
-
- NewMI = BuildMI(*MFI, MBBI, MI->getDebugLoc(), get(Opc), leaOutReg)
- .addReg(0).addImm(1 << ShAmt)
- .addReg(leaInReg, false, false, true).addImm(0);
-
- MachineInstr *ExtMI =
- BuildMI(*MFI, MBBI, MI->getDebugLoc(), get(X86::EXTRACT_SUBREG))
- .addReg(Dest, true, false, false, isDead)
- .addReg(leaOutReg, false, false, true).addImm(X86::SUBREG_16BIT);
-
- if (LV) {
- // Update live variables
- LV->getVarInfo(leaInReg).Kills.push_back(NewMI);
- LV->getVarInfo(leaOutReg).Kills.push_back(ExtMI);
- if (isKill)
- LV->replaceKillInstruction(Src, MI, InsMI);
- if (isDead)
- LV->replaceKillInstruction(Dest, MI, ExtMI);
- }
- return ExtMI;
- } else {
- NewMI = BuildMI(MF, MI->getDebugLoc(), get(X86::LEA16r))
- .addReg(Dest, true, false, false, isDead)
- .addReg(0).addImm(1 << ShAmt)
- .addReg(Src, false, false, isKill).addImm(0);
- }
+ if (DisableLEA16)
+ return is64Bit ? convertToThreeAddressWithLEA(MIOpc, MFI, MBBI, LV) : 0;
+ NewMI = BuildMI(MF, MI->getDebugLoc(), get(X86::LEA16r))
+ .addReg(Dest, RegState::Define | getDeadRegState(isDead))
+ .addReg(0).addImm(1 << ShAmt)
+ .addReg(Src, getKillRegState(isKill))
+ .addImm(0);
break;
}
default: {
if (hasLiveCondCodeDef(MI))
return 0;
- bool is64Bit = TM.getSubtarget<X86Subtarget>().is64Bit();
switch (MIOpc) {
default: return 0;
case X86::INC64r:
unsigned Opc = MIOpc == X86::INC64r ? X86::LEA64r
: (is64Bit ? X86::LEA64_32r : X86::LEA32r);
NewMI = addLeaRegOffset(BuildMI(MF, MI->getDebugLoc(), get(Opc))
- .addReg(Dest, true, false, false, isDead),
+ .addReg(Dest, RegState::Define |
+ getDeadRegState(isDead)),
Src, isKill, 1);
break;
}
case X86::INC16r:
case X86::INC64_16r:
- if (DisableLEA16) return 0;
+ if (DisableLEA16)
+ return is64Bit ? convertToThreeAddressWithLEA(MIOpc, MFI, MBBI, LV) : 0;
assert(MI->getNumOperands() >= 2 && "Unknown inc instruction!");
NewMI = addRegOffset(BuildMI(MF, MI->getDebugLoc(), get(X86::LEA16r))
- .addReg(Dest, true, false, false, isDead),
+ .addReg(Dest, RegState::Define |
+ getDeadRegState(isDead)),
Src, isKill, 1);
break;
case X86::DEC64r:
unsigned Opc = MIOpc == X86::DEC64r ? X86::LEA64r
: (is64Bit ? X86::LEA64_32r : X86::LEA32r);
NewMI = addLeaRegOffset(BuildMI(MF, MI->getDebugLoc(), get(Opc))
- .addReg(Dest, true, false, false, isDead),
+ .addReg(Dest, RegState::Define |
+ getDeadRegState(isDead)),
Src, isKill, -1);
break;
}
case X86::DEC16r:
case X86::DEC64_16r:
- if (DisableLEA16) return 0;
+ if (DisableLEA16)
+ return is64Bit ? convertToThreeAddressWithLEA(MIOpc, MFI, MBBI, LV) : 0;
assert(MI->getNumOperands() >= 2 && "Unknown dec instruction!");
NewMI = addRegOffset(BuildMI(MF, MI->getDebugLoc(), get(X86::LEA16r))
- .addReg(Dest, true, false, false, isDead),
+ .addReg(Dest, RegState::Define |
+ getDeadRegState(isDead)),
Src, isKill, -1);
break;
case X86::ADD64rr:
unsigned Src2 = MI->getOperand(2).getReg();
bool isKill2 = MI->getOperand(2).isKill();
NewMI = addRegReg(BuildMI(MF, MI->getDebugLoc(), get(Opc))
- .addReg(Dest, true, false, false, isDead),
+ .addReg(Dest, RegState::Define |
+ getDeadRegState(isDead)),
Src, isKill, Src2, isKill2);
if (LV && isKill2)
LV->replaceKillInstruction(Src2, MI, NewMI);
break;
}
case X86::ADD16rr: {
- if (DisableLEA16) return 0;
+ if (DisableLEA16)
+ return is64Bit ? convertToThreeAddressWithLEA(MIOpc, MFI, MBBI, LV) : 0;
assert(MI->getNumOperands() >= 3 && "Unknown add instruction!");
unsigned Src2 = MI->getOperand(2).getReg();
bool isKill2 = MI->getOperand(2).isKill();
NewMI = addRegReg(BuildMI(MF, MI->getDebugLoc(), get(X86::LEA16r))
- .addReg(Dest, true, false, false, isDead),
+ .addReg(Dest, RegState::Define |
+ getDeadRegState(isDead)),
Src, isKill, Src2, isKill2);
if (LV && isKill2)
LV->replaceKillInstruction(Src2, MI, NewMI);
case X86::ADD64ri32:
case X86::ADD64ri8:
assert(MI->getNumOperands() >= 3 && "Unknown add instruction!");
- if (MI->getOperand(2).isImm())
- NewMI = addLeaRegOffset(BuildMI(MF, MI->getDebugLoc(), get(X86::LEA64r))
- .addReg(Dest, true, false, false, isDead),
- Src, isKill, MI->getOperand(2).getImm());
+ NewMI = addLeaRegOffset(BuildMI(MF, MI->getDebugLoc(), get(X86::LEA64r))
+ .addReg(Dest, RegState::Define |
+ getDeadRegState(isDead)),
+ Src, isKill, MI->getOperand(2).getImm());
break;
case X86::ADD32ri:
- case X86::ADD32ri8:
+ case X86::ADD32ri8: {
assert(MI->getNumOperands() >= 3 && "Unknown add instruction!");
- if (MI->getOperand(2).isImm()) {
- unsigned Opc = is64Bit ? X86::LEA64_32r : X86::LEA32r;
- NewMI = addLeaRegOffset(BuildMI(MF, MI->getDebugLoc(), get(Opc))
- .addReg(Dest, true, false, false, isDead),
+ unsigned Opc = is64Bit ? X86::LEA64_32r : X86::LEA32r;
+ NewMI = addLeaRegOffset(BuildMI(MF, MI->getDebugLoc(), get(Opc))
+ .addReg(Dest, RegState::Define |
+ getDeadRegState(isDead)),
Src, isKill, MI->getOperand(2).getImm());
- }
break;
+ }
case X86::ADD16ri:
case X86::ADD16ri8:
- if (DisableLEA16) return 0;
+ if (DisableLEA16)
+ return is64Bit ? convertToThreeAddressWithLEA(MIOpc, MFI, MBBI, LV) : 0;
assert(MI->getNumOperands() >= 3 && "Unknown add instruction!");
- if (MI->getOperand(2).isImm())
- NewMI = addRegOffset(BuildMI(MF, MI->getDebugLoc(), get(X86::LEA16r))
- .addReg(Dest, true, false, false, isDead),
- Src, isKill, MI->getOperand(2).getImm());
- break;
- case X86::SHL16ri:
- if (DisableLEA16) return 0;
- case X86::SHL32ri:
- case X86::SHL64ri: {
- assert(MI->getNumOperands() >= 3 && MI->getOperand(2).isImm() &&
- "Unknown shl instruction!");
- unsigned ShAmt = MI->getOperand(2).getImm();
- if (ShAmt == 1 || ShAmt == 2 || ShAmt == 3) {
- X86AddressMode AM;
- AM.Scale = 1 << ShAmt;
- AM.IndexReg = Src;
- unsigned Opc = MIOpc == X86::SHL64ri ? X86::LEA64r
- : (MIOpc == X86::SHL32ri
- ? (is64Bit ? X86::LEA64_32r : X86::LEA32r) : X86::LEA16r);
- NewMI = addFullAddress(BuildMI(MF, MI->getDebugLoc(), get(Opc))
- .addReg(Dest, true, false, false, isDead), AM);
- if (isKill)
- NewMI->getOperand(3).setIsKill(true);
- }
+ NewMI = addLeaRegOffset(BuildMI(MF, MI->getDebugLoc(), get(X86::LEA16r))
+ .addReg(Dest, RegState::Define |
+ getDeadRegState(isDead)),
+ Src, isKill, MI->getOperand(2).getImm());
break;
}
- }
}
}
unsigned Opc;
unsigned Size;
switch (MI->getOpcode()) {
- default: assert(0 && "Unreachable!");
+ default: llvm_unreachable("Unreachable!");
case X86::SHRD16rri8: Size = 16; Opc = X86::SHLD16rri8; break;
case X86::SHLD16rri8: Size = 16; Opc = X86::SHRD16rri8; break;
case X86::SHRD32rri8: Size = 32; Opc = X86::SHLD32rri8; break;
unsigned X86::GetCondBranchFromCond(X86::CondCode CC) {
switch (CC) {
- default: assert(0 && "Illegal condition code!");
+ default: llvm_unreachable("Illegal condition code!");
case X86::COND_E: return X86::JE;
case X86::COND_NE: return X86::JNE;
case X86::COND_L: return X86::JL;
/// e.g. turning COND_E to COND_NE.
X86::CondCode X86::GetOppositeBranchCondition(X86::CondCode CC) {
switch (CC) {
- default: assert(0 && "Illegal condition code!");
+ default: llvm_unreachable("Illegal condition code!");
case X86::COND_E: return X86::COND_NE;
case X86::COND_NE: return X86::COND_E;
case X86::COND_L: return X86::COND_GE;
MachineBasicBlock::iterator I = MBB.end();
while (I != MBB.begin()) {
--I;
- // Working from the bottom, when we see a non-terminator
- // instruction, we're done.
+
+ // Working from the bottom, when we see a non-terminator instruction, we're
+ // done.
if (!isBrAnalysisUnpredicatedTerminator(I, *this))
break;
- // A terminator that isn't a branch can't easily be handled
- // by this analysis.
+
+ // A terminator that isn't a branch can't easily be handled by this
+ // analysis.
if (!I->getDesc().isBranch())
return true;
+
// Handle unconditional branches.
if (I->getOpcode() == X86::JMP) {
if (!AllowModify) {
TBB = I->getOperand(0).getMBB();
- return false;
+ continue;
}
// If the block has any instructions after a JMP, delete them.
- while (next(I) != MBB.end())
- next(I)->eraseFromParent();
+ while (llvm::next(I) != MBB.end())
+ llvm::next(I)->eraseFromParent();
+
Cond.clear();
FBB = 0;
+
// Delete the JMP if it's equivalent to a fall-through.
if (MBB.isLayoutSuccessor(I->getOperand(0).getMBB())) {
TBB = 0;
I = MBB.end();
continue;
}
+
// TBB is used to indicate the unconditinal destination.
TBB = I->getOperand(0).getMBB();
continue;
}
+
// Handle conditional branches.
X86::CondCode BranchCode = GetCondFromBranchOpc(I->getOpcode());
if (BranchCode == X86::COND_INVALID)
return true; // Can't handle indirect branch.
+
// Working from the bottom, handle the first conditional branch.
if (Cond.empty()) {
FBB = TBB;
Cond.push_back(MachineOperand::CreateImm(BranchCode));
continue;
}
- // Handle subsequent conditional branches. Only handle the case
- // where all conditional branches branch to the same destination
- // and their condition opcodes fit one of the special
- // multi-branch idioms.
+
+ // Handle subsequent conditional branches. Only handle the case where all
+ // conditional branches branch to the same destination and their condition
+ // opcodes fit one of the special multi-branch idioms.
assert(Cond.size() == 1);
assert(TBB);
- // Only handle the case where all conditional branches branch to
- // the same destination.
+
+ // Only handle the case where all conditional branches branch to the same
+ // destination.
if (TBB != I->getOperand(0).getMBB())
return true;
- X86::CondCode OldBranchCode = (X86::CondCode)Cond[0].getImm();
+
// If the conditions are the same, we can leave them alone.
+ X86::CondCode OldBranchCode = (X86::CondCode)Cond[0].getImm();
if (OldBranchCode == BranchCode)
continue;
- // If they differ, see if they fit one of the known patterns.
- // Theoretically we could handle more patterns here, but
- // we shouldn't expect to see them if instruction selection
- // has done a reasonable job.
+
+ // If they differ, see if they fit one of the known patterns. Theoretically,
+ // we could handle more patterns here, but we shouldn't expect to see them
+ // if instruction selection has done a reasonable job.
if ((OldBranchCode == X86::COND_NP &&
BranchCode == X86::COND_E) ||
(OldBranchCode == X86::COND_E &&
BranchCode = X86::COND_NE_OR_P;
else
return true;
+
// Update the MachineOperand.
Cond[0].setImm(BranchCode);
}
/// isHReg - Test if the given register is a physical h register.
static bool isHReg(unsigned Reg) {
- return Reg == X86::AH || Reg == X86::BH || Reg == X86::CH || Reg == X86::DH;
+ return X86::GR8_ABCD_HRegClass.contains(Reg);
}
bool X86InstrInfo::copyRegToReg(MachineBasicBlock &MBB,
/* Source and destination have the same register class. */;
else if (CommonRC->hasSuperClass(SrcRC))
CommonRC = SrcRC;
- else if (!DestRC->hasSubClass(SrcRC))
- CommonRC = 0;
+ else if (!DestRC->hasSubClass(SrcRC)) {
+ // Neither of GR64_NOREX or GR64_NOSP is a superclass of the other,
+ // but we want to copy then as GR64. Similarly, for GR32_NOREX and
+ // GR32_NOSP, copy as GR32.
+ if (SrcRC->hasSuperClass(&X86::GR64RegClass) &&
+ DestRC->hasSuperClass(&X86::GR64RegClass))
+ CommonRC = &X86::GR64RegClass;
+ else if (SrcRC->hasSuperClass(&X86::GR32RegClass) &&
+ DestRC->hasSuperClass(&X86::GR32RegClass))
+ CommonRC = &X86::GR32RegClass;
+ else
+ CommonRC = 0;
+ }
if (CommonRC) {
unsigned Opc;
- if (CommonRC == &X86::GR64RegClass) {
+ if (CommonRC == &X86::GR64RegClass || CommonRC == &X86::GR64_NOSPRegClass) {
Opc = X86::MOV64rr;
- } else if (CommonRC == &X86::GR32RegClass) {
+ } else if (CommonRC == &X86::GR32RegClass ||
+ CommonRC == &X86::GR32_NOSPRegClass) {
Opc = X86::MOV32rr;
} else if (CommonRC == &X86::GR16RegClass) {
Opc = X86::MOV16rr;
} else if (CommonRC == &X86::GR8RegClass) {
- // Copying two or from a physical H register on x86-64 requires a NOREX
+ // Copying to or from a physical H register on x86-64 requires a NOREX
// move. Otherwise use a normal move.
if ((isHReg(DestReg) || isHReg(SrcReg)) &&
TM.getSubtarget<X86Subtarget>().is64Bit())
Opc = X86::MOV8rr_NOREX;
else
Opc = X86::MOV8rr;
- } else if (CommonRC == &X86::GR64_RegClass) {
+ } else if (CommonRC == &X86::GR64_ABCDRegClass) {
Opc = X86::MOV64rr;
- } else if (CommonRC == &X86::GR32_RegClass) {
+ } else if (CommonRC == &X86::GR32_ABCDRegClass) {
Opc = X86::MOV32rr;
- } else if (CommonRC == &X86::GR16_RegClass) {
+ } else if (CommonRC == &X86::GR16_ABCDRegClass) {
Opc = X86::MOV16rr;
- } else if (CommonRC == &X86::GR8_RegClass) {
+ } else if (CommonRC == &X86::GR8_ABCD_LRegClass) {
Opc = X86::MOV8rr;
- } else if (CommonRC == &X86::GR64_NOREXRegClass) {
+ } else if (CommonRC == &X86::GR8_ABCD_HRegClass) {
+ if (TM.getSubtarget<X86Subtarget>().is64Bit())
+ Opc = X86::MOV8rr_NOREX;
+ else
+ Opc = X86::MOV8rr;
+ } else if (CommonRC == &X86::GR64_NOREXRegClass ||
+ CommonRC == &X86::GR64_NOREX_NOSPRegClass) {
Opc = X86::MOV64rr;
} else if (CommonRC == &X86::GR32_NOREXRegClass) {
Opc = X86::MOV32rr;
BuildMI(MBB, MI, DL, get(Opc), DestReg).addReg(SrcReg);
return true;
}
-
+
// Moving EFLAGS to / from another register requires a push and a pop.
if (SrcRC == &X86::CCRRegClass) {
if (SrcReg != X86::EFLAGS)
return false;
- if (DestRC == &X86::GR64RegClass) {
- BuildMI(MBB, MI, DL, get(X86::PUSHFQ));
+ if (DestRC == &X86::GR64RegClass || DestRC == &X86::GR64_NOSPRegClass) {
+ BuildMI(MBB, MI, DL, get(X86::PUSHFQ64));
BuildMI(MBB, MI, DL, get(X86::POP64r), DestReg);
return true;
- } else if (DestRC == &X86::GR32RegClass) {
+ } else if (DestRC == &X86::GR32RegClass ||
+ DestRC == &X86::GR32_NOSPRegClass) {
BuildMI(MBB, MI, DL, get(X86::PUSHFD));
BuildMI(MBB, MI, DL, get(X86::POP32r), DestReg);
return true;
} else if (DestRC == &X86::CCRRegClass) {
if (DestReg != X86::EFLAGS)
return false;
- if (SrcRC == &X86::GR64RegClass) {
+ if (SrcRC == &X86::GR64RegClass || DestRC == &X86::GR64_NOSPRegClass) {
BuildMI(MBB, MI, DL, get(X86::PUSH64r)).addReg(SrcReg);
BuildMI(MBB, MI, DL, get(X86::POPFQ));
return true;
- } else if (SrcRC == &X86::GR32RegClass) {
+ } else if (SrcRC == &X86::GR32RegClass ||
+ DestRC == &X86::GR32_NOSPRegClass) {
BuildMI(MBB, MI, DL, get(X86::PUSH32r)).addReg(SrcReg);
BuildMI(MBB, MI, DL, get(X86::POPFD));
return true;
return false;
}
-static unsigned getStoreRegOpcode(const TargetRegisterClass *RC,
- bool isStackAligned) {
+static unsigned getStoreRegOpcode(unsigned SrcReg,
+ const TargetRegisterClass *RC,
+ bool isStackAligned,
+ TargetMachine &TM) {
unsigned Opc = 0;
- if (RC == &X86::GR64RegClass) {
+ if (RC == &X86::GR64RegClass || RC == &X86::GR64_NOSPRegClass) {
Opc = X86::MOV64mr;
- } else if (RC == &X86::GR32RegClass) {
+ } else if (RC == &X86::GR32RegClass || RC == &X86::GR32_NOSPRegClass) {
Opc = X86::MOV32mr;
} else if (RC == &X86::GR16RegClass) {
Opc = X86::MOV16mr;
} else if (RC == &X86::GR8RegClass) {
- Opc = X86::MOV8mr;
- } else if (RC == &X86::GR64_RegClass) {
+ // Copying to or from a physical H register on x86-64 requires a NOREX
+ // move. Otherwise use a normal move.
+ if (isHReg(SrcReg) &&
+ TM.getSubtarget<X86Subtarget>().is64Bit())
+ Opc = X86::MOV8mr_NOREX;
+ else
+ Opc = X86::MOV8mr;
+ } else if (RC == &X86::GR64_ABCDRegClass) {
Opc = X86::MOV64mr;
- } else if (RC == &X86::GR32_RegClass) {
+ } else if (RC == &X86::GR32_ABCDRegClass) {
Opc = X86::MOV32mr;
- } else if (RC == &X86::GR16_RegClass) {
+ } else if (RC == &X86::GR16_ABCDRegClass) {
Opc = X86::MOV16mr;
- } else if (RC == &X86::GR8_RegClass) {
+ } else if (RC == &X86::GR8_ABCD_LRegClass) {
Opc = X86::MOV8mr;
- } else if (RC == &X86::GR64_NOREXRegClass) {
+ } else if (RC == &X86::GR8_ABCD_HRegClass) {
+ if (TM.getSubtarget<X86Subtarget>().is64Bit())
+ Opc = X86::MOV8mr_NOREX;
+ else
+ Opc = X86::MOV8mr;
+ } else if (RC == &X86::GR64_NOREXRegClass ||
+ RC == &X86::GR64_NOREX_NOSPRegClass) {
Opc = X86::MOV64mr;
} else if (RC == &X86::GR32_NOREXRegClass) {
Opc = X86::MOV32mr;
} else if (RC == &X86::VR64RegClass) {
Opc = X86::MMX_MOVQ64mr;
} else {
- assert(0 && "Unknown regclass");
- abort();
+ llvm_unreachable("Unknown regclass");
}
return Opc;
unsigned SrcReg, bool isKill, int FrameIdx,
const TargetRegisterClass *RC) const {
const MachineFunction &MF = *MBB.getParent();
- bool isAligned = (RI.getStackAlignment() >= 16) ||
- RI.needsStackRealignment(MF);
- unsigned Opc = getStoreRegOpcode(RC, isAligned);
+ bool isAligned = (RI.getStackAlignment() >= 16) || RI.canRealignStack(MF);
+ unsigned Opc = getStoreRegOpcode(SrcReg, RC, isAligned, TM);
DebugLoc DL = DebugLoc::getUnknownLoc();
if (MI != MBB.end()) DL = MI->getDebugLoc();
addFrameReference(BuildMI(MBB, MI, DL, get(Opc)), FrameIdx)
- .addReg(SrcReg, false, false, isKill);
+ .addReg(SrcReg, getKillRegState(isKill));
}
void X86InstrInfo::storeRegToAddr(MachineFunction &MF, unsigned SrcReg,
bool isKill,
SmallVectorImpl<MachineOperand> &Addr,
const TargetRegisterClass *RC,
+ MachineInstr::mmo_iterator MMOBegin,
+ MachineInstr::mmo_iterator MMOEnd,
SmallVectorImpl<MachineInstr*> &NewMIs) const {
- bool isAligned = (RI.getStackAlignment() >= 16) ||
- RI.needsStackRealignment(MF);
- unsigned Opc = getStoreRegOpcode(RC, isAligned);
+ bool isAligned = (*MMOBegin)->getAlignment() >= 16;
+ unsigned Opc = getStoreRegOpcode(SrcReg, RC, isAligned, TM);
DebugLoc DL = DebugLoc::getUnknownLoc();
MachineInstrBuilder MIB = BuildMI(MF, DL, get(Opc));
for (unsigned i = 0, e = Addr.size(); i != e; ++i)
MIB.addOperand(Addr[i]);
- MIB.addReg(SrcReg, false, false, isKill);
+ MIB.addReg(SrcReg, getKillRegState(isKill));
+ (*MIB).setMemRefs(MMOBegin, MMOEnd);
NewMIs.push_back(MIB);
}
-static unsigned getLoadRegOpcode(const TargetRegisterClass *RC,
- bool isStackAligned) {
+static unsigned getLoadRegOpcode(unsigned DestReg,
+ const TargetRegisterClass *RC,
+ bool isStackAligned,
+ const TargetMachine &TM) {
unsigned Opc = 0;
- if (RC == &X86::GR64RegClass) {
+ if (RC == &X86::GR64RegClass || RC == &X86::GR64_NOSPRegClass) {
Opc = X86::MOV64rm;
- } else if (RC == &X86::GR32RegClass) {
+ } else if (RC == &X86::GR32RegClass || RC == &X86::GR32_NOSPRegClass) {
Opc = X86::MOV32rm;
} else if (RC == &X86::GR16RegClass) {
Opc = X86::MOV16rm;
} else if (RC == &X86::GR8RegClass) {
- Opc = X86::MOV8rm;
- } else if (RC == &X86::GR64_RegClass) {
+ // Copying to or from a physical H register on x86-64 requires a NOREX
+ // move. Otherwise use a normal move.
+ if (isHReg(DestReg) &&
+ TM.getSubtarget<X86Subtarget>().is64Bit())
+ Opc = X86::MOV8rm_NOREX;
+ else
+ Opc = X86::MOV8rm;
+ } else if (RC == &X86::GR64_ABCDRegClass) {
Opc = X86::MOV64rm;
- } else if (RC == &X86::GR32_RegClass) {
+ } else if (RC == &X86::GR32_ABCDRegClass) {
Opc = X86::MOV32rm;
- } else if (RC == &X86::GR16_RegClass) {
+ } else if (RC == &X86::GR16_ABCDRegClass) {
Opc = X86::MOV16rm;
- } else if (RC == &X86::GR8_RegClass) {
+ } else if (RC == &X86::GR8_ABCD_LRegClass) {
Opc = X86::MOV8rm;
- } else if (RC == &X86::GR64_NOREXRegClass) {
+ } else if (RC == &X86::GR8_ABCD_HRegClass) {
+ if (TM.getSubtarget<X86Subtarget>().is64Bit())
+ Opc = X86::MOV8rm_NOREX;
+ else
+ Opc = X86::MOV8rm;
+ } else if (RC == &X86::GR64_NOREXRegClass ||
+ RC == &X86::GR64_NOREX_NOSPRegClass) {
Opc = X86::MOV64rm;
} else if (RC == &X86::GR32_NOREXRegClass) {
Opc = X86::MOV32rm;
} else if (RC == &X86::VR64RegClass) {
Opc = X86::MMX_MOVQ64rm;
} else {
- assert(0 && "Unknown regclass");
- abort();
+ llvm_unreachable("Unknown regclass");
}
return Opc;
unsigned DestReg, int FrameIdx,
const TargetRegisterClass *RC) const{
const MachineFunction &MF = *MBB.getParent();
- bool isAligned = (RI.getStackAlignment() >= 16) ||
- RI.needsStackRealignment(MF);
- unsigned Opc = getLoadRegOpcode(RC, isAligned);
+ bool isAligned = (RI.getStackAlignment() >= 16) || RI.canRealignStack(MF);
+ unsigned Opc = getLoadRegOpcode(DestReg, RC, isAligned, TM);
DebugLoc DL = DebugLoc::getUnknownLoc();
if (MI != MBB.end()) DL = MI->getDebugLoc();
addFrameReference(BuildMI(MBB, MI, DL, get(Opc), DestReg), FrameIdx);
void X86InstrInfo::loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
SmallVectorImpl<MachineOperand> &Addr,
const TargetRegisterClass *RC,
+ MachineInstr::mmo_iterator MMOBegin,
+ MachineInstr::mmo_iterator MMOEnd,
SmallVectorImpl<MachineInstr*> &NewMIs) const {
- bool isAligned = (RI.getStackAlignment() >= 16) ||
- RI.needsStackRealignment(MF);
- unsigned Opc = getLoadRegOpcode(RC, isAligned);
+ bool isAligned = (*MMOBegin)->getAlignment() >= 16;
+ unsigned Opc = getLoadRegOpcode(DestReg, RC, isAligned, TM);
DebugLoc DL = DebugLoc::getUnknownLoc();
MachineInstrBuilder MIB = BuildMI(MF, DL, get(Opc), DestReg);
for (unsigned i = 0, e = Addr.size(); i != e; ++i)
MIB.addOperand(Addr[i]);
+ (*MIB).setMemRefs(MMOBegin, MMOEnd);
NewMIs.push_back(MIB);
}
if (CSI.empty())
return false;
- DebugLoc DL = DebugLoc::getUnknownLoc();
- if (MI != MBB.end()) DL = MI->getDebugLoc();
+ DebugLoc DL = MBB.findDebugLoc(MI);
bool is64Bit = TM.getSubtarget<X86Subtarget>().is64Bit();
+ bool isWin64 = TM.getSubtarget<X86Subtarget>().isTargetWin64();
unsigned SlotSize = is64Bit ? 8 : 4;
MachineFunction &MF = *MBB.getParent();
+ unsigned FPReg = RI.getFrameRegister(MF);
X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
- X86FI->setCalleeSavedFrameSize(CSI.size() * SlotSize);
+ unsigned CalleeFrameSize = 0;
unsigned Opc = is64Bit ? X86::PUSH64r : X86::PUSH32r;
for (unsigned i = CSI.size(); i != 0; --i) {
unsigned Reg = CSI[i-1].getReg();
+ const TargetRegisterClass *RegClass = CSI[i-1].getRegClass();
// Add the callee-saved register as live-in. It's killed at the spill.
MBB.addLiveIn(Reg);
- BuildMI(MBB, MI, DL, get(Opc))
- .addReg(Reg, /*isDef=*/false, /*isImp=*/false, /*isKill=*/true);
+ if (Reg == FPReg)
+ // X86RegisterInfo::emitPrologue will handle spilling of frame register.
+ continue;
+ if (RegClass != &X86::VR128RegClass && !isWin64) {
+ CalleeFrameSize += SlotSize;
+ BuildMI(MBB, MI, DL, get(Opc)).addReg(Reg, RegState::Kill);
+ } else {
+ storeRegToStackSlot(MBB, MI, Reg, true, CSI[i-1].getFrameIdx(), RegClass);
+ }
}
+
+ X86FI->setCalleeSavedFrameSize(CalleeFrameSize);
return true;
}
if (CSI.empty())
return false;
- DebugLoc DL = DebugLoc::getUnknownLoc();
- if (MI != MBB.end()) DL = MI->getDebugLoc();
+ DebugLoc DL = MBB.findDebugLoc(MI);
+ MachineFunction &MF = *MBB.getParent();
+ unsigned FPReg = RI.getFrameRegister(MF);
bool is64Bit = TM.getSubtarget<X86Subtarget>().is64Bit();
-
+ bool isWin64 = TM.getSubtarget<X86Subtarget>().isTargetWin64();
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, DL, get(Opc), Reg);
+ if (Reg == FPReg)
+ // X86RegisterInfo::emitEpilogue will handle restoring of frame register.
+ continue;
+ const TargetRegisterClass *RegClass = CSI[i].getRegClass();
+ if (RegClass != &X86::VR128RegClass && !isWin64) {
+ BuildMI(MBB, MI, DL, get(Opc), Reg);
+ } else {
+ loadRegFromStackSlot(MBB, MI, Reg, CSI[i].getFrameIdx(), RegClass);
+ }
}
return true;
}
MachineInstr*
X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr *MI, unsigned i,
- const SmallVectorImpl<MachineOperand> &MOs) const{
- const DenseMap<unsigned*, unsigned> *OpcodeTablePtr = NULL;
+ const SmallVectorImpl<MachineOperand> &MOs,
+ unsigned Size, unsigned Align) const {
+ const DenseMap<unsigned*, std::pair<unsigned,unsigned> > *OpcodeTablePtr=NULL;
bool isTwoAddrFold = false;
unsigned NumOps = MI->getDesc().getNumOperands();
bool isTwoAddr = NumOps > 1 &&
OpcodeTablePtr = &RegOp2MemOpTable2Addr;
isTwoAddrFold = true;
} else if (i == 0) { // If operand 0
- if (MI->getOpcode() == X86::MOV16r0)
- NewMI = MakeM0Inst(*this, X86::MOV16mi, MOs, MI);
+ if (MI->getOpcode() == X86::MOV64r0)
+ NewMI = MakeM0Inst(*this, X86::MOV64mi32, MOs, MI);
else if (MI->getOpcode() == X86::MOV32r0)
NewMI = MakeM0Inst(*this, X86::MOV32mi, MOs, MI);
- else if (MI->getOpcode() == X86::MOV64r0)
- NewMI = MakeM0Inst(*this, X86::MOV64mi32, MOs, MI);
+ else if (MI->getOpcode() == X86::MOV16r0)
+ NewMI = MakeM0Inst(*this, X86::MOV16mi, MOs, MI);
else if (MI->getOpcode() == X86::MOV8r0)
NewMI = MakeM0Inst(*this, X86::MOV8mi, MOs, MI);
if (NewMI)
// If table selected...
if (OpcodeTablePtr) {
// Find the Opcode to fuse
- DenseMap<unsigned*, unsigned>::iterator I =
+ DenseMap<unsigned*, std::pair<unsigned,unsigned> >::const_iterator I =
OpcodeTablePtr->find((unsigned*)MI->getOpcode());
if (I != OpcodeTablePtr->end()) {
+ unsigned Opcode = I->second.first;
+ unsigned MinAlign = I->second.second;
+ if (Align < MinAlign)
+ return NULL;
+ bool NarrowToMOV32rm = false;
+ if (Size) {
+ unsigned RCSize = MI->getDesc().OpInfo[i].getRegClass(&RI)->getSize();
+ if (Size < RCSize) {
+ // Check if it's safe to fold the load. If the size of the object is
+ // narrower than the load width, then it's not.
+ if (Opcode != X86::MOV64rm || RCSize != 8 || Size != 4)
+ return NULL;
+ // If this is a 64-bit load, but the spill slot is 32, then we can do
+ // a 32-bit load which is implicitly zero-extended. This likely is due
+ // to liveintervalanalysis remat'ing a load from stack slot.
+ if (MI->getOperand(0).getSubReg() || MI->getOperand(1).getSubReg())
+ return NULL;
+ Opcode = X86::MOV32rm;
+ NarrowToMOV32rm = true;
+ }
+ }
+
if (isTwoAddrFold)
- NewMI = FuseTwoAddrInst(MF, I->second, MOs, MI, *this);
+ NewMI = FuseTwoAddrInst(MF, Opcode, MOs, MI, *this);
else
- NewMI = FuseInst(MF, I->second, i, MOs, MI, *this);
+ NewMI = FuseInst(MF, Opcode, i, MOs, MI, *this);
+
+ if (NarrowToMOV32rm) {
+ // If this is the special case where we use a MOV32rm to load a 32-bit
+ // value and zero-extend the top bits. Change the destination register
+ // to a 32-bit one.
+ unsigned DstReg = NewMI->getOperand(0).getReg();
+ if (TargetRegisterInfo::isPhysicalRegister(DstReg))
+ NewMI->getOperand(0).setReg(RI.getSubReg(DstReg,
+ 4/*x86_subreg_32bit*/));
+ else
+ NewMI->getOperand(0).setSubReg(4/*x86_subreg_32bit*/);
+ }
return NewMI;
}
}
// No fusion
if (PrintFailedFusing)
- cerr << "We failed to fuse operand " << i << " in " << *MI;
+ dbgs() << "We failed to fuse operand " << i << " in " << *MI;
return NULL;
}
MachineInstr* X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr *MI,
- const SmallVectorImpl<unsigned> &Ops,
+ const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const {
// Check switch flag
if (NoFusing) return NULL;
- const MachineFrameInfo *MFI = MF.getFrameInfo();
- unsigned Alignment = MFI->getObjectAlignment(FrameIndex);
- // FIXME: Move alignment requirement into tables?
- if (Alignment < 16) {
+ if (!MF.getFunction()->hasFnAttr(Attribute::OptimizeForSize))
switch (MI->getOpcode()) {
- default: break;
- // Not always safe to fold movsd into these instructions since their load
- // folding variants expects the address to be 16 byte aligned.
- case X86::FsANDNPDrr:
- case X86::FsANDNPSrr:
- case X86::FsANDPDrr:
- case X86::FsANDPSrr:
- case X86::FsORPDrr:
- case X86::FsORPSrr:
- case X86::FsXORPDrr:
- case X86::FsXORPSrr:
- return NULL;
+ case X86::CVTSD2SSrr:
+ case X86::Int_CVTSD2SSrr:
+ case X86::CVTSS2SDrr:
+ case X86::Int_CVTSS2SDrr:
+ case X86::RCPSSr:
+ case X86::RCPSSr_Int:
+ case X86::ROUNDSDr_Int:
+ case X86::ROUNDSSr_Int:
+ case X86::RSQRTSSr:
+ case X86::RSQRTSSr_Int:
+ case X86::SQRTSSr:
+ case X86::SQRTSSr_Int:
+ return 0;
}
- }
+ const MachineFrameInfo *MFI = MF.getFrameInfo();
+ unsigned Size = MFI->getObjectSize(FrameIndex);
+ unsigned Alignment = MFI->getObjectAlignment(FrameIndex);
if (Ops.size() == 2 && Ops[0] == 0 && Ops[1] == 1) {
unsigned NewOpc = 0;
+ unsigned RCSize = 0;
switch (MI->getOpcode()) {
default: return NULL;
- case X86::TEST8rr: NewOpc = X86::CMP8ri; break;
- case X86::TEST16rr: NewOpc = X86::CMP16ri; break;
- case X86::TEST32rr: NewOpc = X86::CMP32ri; break;
- case X86::TEST64rr: NewOpc = X86::CMP64ri32; break;
+ case X86::TEST8rr: NewOpc = X86::CMP8ri; RCSize = 1; break;
+ case X86::TEST16rr: NewOpc = X86::CMP16ri; RCSize = 2; break;
+ case X86::TEST32rr: NewOpc = X86::CMP32ri; RCSize = 4; break;
+ case X86::TEST64rr: NewOpc = X86::CMP64ri32; RCSize = 8; break;
}
+ // Check if it's safe to fold the load. If the size of the object is
+ // narrower than the load width, then it's not.
+ if (Size < RCSize)
+ return NULL;
// Change to CMPXXri r, 0 first.
MI->setDesc(get(NewOpc));
MI->getOperand(1).ChangeToImmediate(0);
SmallVector<MachineOperand,4> MOs;
MOs.push_back(MachineOperand::CreateFI(FrameIndex));
- return foldMemoryOperandImpl(MF, MI, Ops[0], MOs);
+ return foldMemoryOperandImpl(MF, MI, Ops[0], MOs, Size, Alignment);
}
MachineInstr* X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr *MI,
- const SmallVectorImpl<unsigned> &Ops,
+ const SmallVectorImpl<unsigned> &Ops,
MachineInstr *LoadMI) const {
// Check switch flag
if (NoFusing) return NULL;
+ if (!MF.getFunction()->hasFnAttr(Attribute::OptimizeForSize))
+ switch (MI->getOpcode()) {
+ case X86::CVTSD2SSrr:
+ case X86::Int_CVTSD2SSrr:
+ case X86::CVTSS2SDrr:
+ case X86::Int_CVTSS2SDrr:
+ case X86::RCPSSr:
+ case X86::RCPSSr_Int:
+ case X86::ROUNDSDr_Int:
+ case X86::ROUNDSSr_Int:
+ case X86::RSQRTSSr:
+ case X86::RSQRTSSr_Int:
+ case X86::SQRTSSr:
+ case X86::SQRTSSr_Int:
+ return 0;
+ }
+
// Determine the alignment of the load.
unsigned Alignment = 0;
if (LoadMI->hasOneMemOperand())
- Alignment = LoadMI->memoperands_begin()->getAlignment();
-
- // FIXME: Move alignment requirement into tables?
- if (Alignment < 16) {
- switch (MI->getOpcode()) {
- default: break;
- // Not always safe to fold movsd into these instructions since their load
- // folding variants expects the address to be 16 byte aligned.
- case X86::FsANDNPDrr:
- case X86::FsANDNPSrr:
- case X86::FsANDPDrr:
- case X86::FsANDPSrr:
- case X86::FsORPDrr:
- case X86::FsORPSrr:
- case X86::FsXORPDrr:
- case X86::FsXORPSrr:
- return NULL;
+ Alignment = (*LoadMI->memoperands_begin())->getAlignment();
+ else
+ switch (LoadMI->getOpcode()) {
+ case X86::V_SET0:
+ case X86::V_SETALLONES:
+ Alignment = 16;
+ break;
+ case X86::FsFLD0SD:
+ Alignment = 8;
+ break;
+ case X86::FsFLD0SS:
+ Alignment = 4;
+ break;
+ default:
+ llvm_unreachable("Don't know how to fold this instruction!");
}
- }
-
if (Ops.size() == 2 && Ops[0] == 0 && Ops[1] == 1) {
unsigned NewOpc = 0;
switch (MI->getOpcode()) {
return NULL;
SmallVector<MachineOperand,X86AddrNumOperands> MOs;
- if (LoadMI->getOpcode() == X86::V_SET0 ||
- LoadMI->getOpcode() == X86::V_SETALLONES) {
+ switch (LoadMI->getOpcode()) {
+ case X86::V_SET0:
+ case X86::V_SETALLONES:
+ case X86::FsFLD0SD:
+ case X86::FsFLD0SS: {
// Folding a V_SET0 or V_SETALLONES as a load, to ease register pressure.
// Create a constant-pool entry and operands to load from it.
// x86-32 PIC requires a PIC base register for constant pools.
unsigned PICBase = 0;
- if (TM.getRelocationModel() == Reloc::PIC_ &&
- !TM.getSubtarget<X86Subtarget>().is64Bit())
- // FIXME: PICBase = TM.getInstrInfo()->getGlobalBaseReg(&MF);
- // This doesn't work for several reasons.
- // 1. GlobalBaseReg may have been spilled.
- // 2. It may not be live at MI.
- return false;
+ if (TM.getRelocationModel() == Reloc::PIC_) {
+ if (TM.getSubtarget<X86Subtarget>().is64Bit())
+ PICBase = X86::RIP;
+ else
+ // FIXME: PICBase = TM.getInstrInfo()->getGlobalBaseReg(&MF);
+ // This doesn't work for several reasons.
+ // 1. GlobalBaseReg may have been spilled.
+ // 2. It may not be live at MI.
+ return NULL;
+ }
- // Create a v4i32 constant-pool entry.
+ // Create a constant-pool entry.
MachineConstantPool &MCP = *MF.getConstantPool();
- const VectorType *Ty = VectorType::get(Type::Int32Ty, 4);
- Constant *C = LoadMI->getOpcode() == X86::V_SET0 ?
- ConstantVector::getNullValue(Ty) :
- ConstantVector::getAllOnesValue(Ty);
- unsigned CPI = MCP.getConstantPoolIndex(C, 16);
+ const Type *Ty;
+ if (LoadMI->getOpcode() == X86::FsFLD0SS)
+ Ty = Type::getFloatTy(MF.getFunction()->getContext());
+ else if (LoadMI->getOpcode() == X86::FsFLD0SD)
+ Ty = Type::getDoubleTy(MF.getFunction()->getContext());
+ else
+ Ty = VectorType::get(Type::getInt32Ty(MF.getFunction()->getContext()), 4);
+ Constant *C = LoadMI->getOpcode() == X86::V_SETALLONES ?
+ Constant::getAllOnesValue(Ty) :
+ Constant::getNullValue(Ty);
+ unsigned CPI = MCP.getConstantPoolIndex(C, Alignment);
// Create operands to load from the constant pool entry.
MOs.push_back(MachineOperand::CreateReg(PICBase, false));
MOs.push_back(MachineOperand::CreateReg(0, false));
MOs.push_back(MachineOperand::CreateCPI(CPI, 0));
MOs.push_back(MachineOperand::CreateReg(0, false));
- } else {
+ break;
+ }
+ default: {
// Folding a normal load. Just copy the load's address operands.
unsigned NumOps = LoadMI->getDesc().getNumOperands();
for (unsigned i = NumOps - X86AddrNumOperands; i != NumOps; ++i)
MOs.push_back(LoadMI->getOperand(i));
+ break;
+ }
}
- return foldMemoryOperandImpl(MF, MI, Ops[0], MOs);
+ return foldMemoryOperandImpl(MF, MI, Ops[0], MOs, 0, Alignment);
}
// 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.
- const DenseMap<unsigned*, unsigned> *OpcodeTablePtr = NULL;
+ const DenseMap<unsigned*, std::pair<unsigned,unsigned> > *OpcodeTablePtr=NULL;
if (isTwoAddr && NumOps >= 2 && OpNum < 2) {
OpcodeTablePtr = &RegOp2MemOpTable2Addr;
} else if (OpNum == 0) { // If operand 0
switch (Opc) {
+ case X86::MOV8r0:
case X86::MOV16r0:
case X86::MOV32r0:
case X86::MOV64r0:
- case X86::MOV8r0:
return true;
default: break;
}
if (OpcodeTablePtr) {
// Find the Opcode to fuse
- DenseMap<unsigned*, unsigned>::iterator I =
+ DenseMap<unsigned*, std::pair<unsigned,unsigned> >::const_iterator I =
OpcodeTablePtr->find((unsigned*)Opc);
if (I != OpcodeTablePtr->end())
return true;
bool X86InstrInfo::unfoldMemoryOperand(MachineFunction &MF, MachineInstr *MI,
unsigned Reg, bool UnfoldLoad, bool UnfoldStore,
SmallVectorImpl<MachineInstr*> &NewMIs) const {
- DenseMap<unsigned*, std::pair<unsigned,unsigned> >::iterator I =
+ DenseMap<unsigned*, std::pair<unsigned,unsigned> >::const_iterator I =
MemOp2RegOpTable.find((unsigned*)MI->getOpcode());
if (I == MemOp2RegOpTable.end())
return false;
- DebugLoc dl = MI->getDebugLoc();
unsigned Opc = I->second.first;
unsigned Index = I->second.second & 0xf;
bool FoldedLoad = I->second.second & (1 << 4);
const TargetInstrDesc &TID = get(Opc);
const TargetOperandInfo &TOI = TID.OpInfo[Index];
- const TargetRegisterClass *RC = TOI.isLookupPtrRegClass()
- ? RI.getPointerRegClass() : RI.getRegClass(TOI.RegClass);
+ const TargetRegisterClass *RC = TOI.getRegClass(&RI);
SmallVector<MachineOperand, X86AddrNumOperands> AddrOps;
SmallVector<MachineOperand,2> BeforeOps;
SmallVector<MachineOperand,2> AfterOps;
// Emit the load instruction.
if (UnfoldLoad) {
- loadRegFromAddr(MF, Reg, AddrOps, RC, NewMIs);
+ std::pair<MachineInstr::mmo_iterator,
+ MachineInstr::mmo_iterator> MMOs =
+ MF.extractLoadMemRefs(MI->memoperands_begin(),
+ MI->memoperands_end());
+ loadRegFromAddr(MF, Reg, AddrOps, RC, MMOs.first, MMOs.second, NewMIs);
if (UnfoldStore) {
// Address operands cannot be marked isKill.
for (unsigned i = 1; i != 1 + X86AddrNumOperands; ++i) {
MachineInstrBuilder MIB(DataMI);
if (FoldedStore)
- MIB.addReg(Reg, true);
+ MIB.addReg(Reg, RegState::Define);
for (unsigned i = 0, e = BeforeOps.size(); i != e; ++i)
MIB.addOperand(BeforeOps[i]);
if (FoldedLoad)
MIB.addOperand(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());
+ MIB.addReg(MO.getReg(),
+ getDefRegState(MO.isDef()) |
+ RegState::Implicit |
+ getKillRegState(MO.isKill()) |
+ getDeadRegState(MO.isDead()) |
+ getUndefRegState(MO.isUndef()));
}
// Change CMP32ri r, 0 back to TEST32rr r, r, etc.
unsigned NewOpc = 0;
// Emit the store instruction.
if (UnfoldStore) {
- const TargetOperandInfo &DstTOI = TID.OpInfo[0];
- const TargetRegisterClass *DstRC = DstTOI.isLookupPtrRegClass()
- ? RI.getPointerRegClass() : RI.getRegClass(DstTOI.RegClass);
- storeRegToAddr(MF, Reg, true, AddrOps, DstRC, NewMIs);
+ const TargetRegisterClass *DstRC = TID.OpInfo[0].getRegClass(&RI);
+ std::pair<MachineInstr::mmo_iterator,
+ MachineInstr::mmo_iterator> MMOs =
+ MF.extractStoreMemRefs(MI->memoperands_begin(),
+ MI->memoperands_end());
+ storeRegToAddr(MF, Reg, true, AddrOps, DstRC, MMOs.first, MMOs.second, NewMIs);
}
return true;
if (!N->isMachineOpcode())
return false;
- DenseMap<unsigned*, std::pair<unsigned,unsigned> >::iterator I =
+ DenseMap<unsigned*, std::pair<unsigned,unsigned> >::const_iterator I =
MemOp2RegOpTable.find((unsigned*)N->getMachineOpcode());
if (I == MemOp2RegOpTable.end())
return false;
bool FoldedLoad = I->second.second & (1 << 4);
bool FoldedStore = I->second.second & (1 << 5);
const TargetInstrDesc &TID = get(Opc);
- const TargetOperandInfo &TOI = TID.OpInfo[Index];
- const TargetRegisterClass *RC = TOI.isLookupPtrRegClass()
- ? RI.getPointerRegClass() : RI.getRegClass(TOI.RegClass);
+ const TargetRegisterClass *RC = TID.OpInfo[Index].getRegClass(&RI);
unsigned NumDefs = TID.NumDefs;
std::vector<SDValue> AddrOps;
std::vector<SDValue> BeforeOps;
// Emit the load instruction.
SDNode *Load = 0;
- const MachineFunction &MF = DAG.getMachineFunction();
+ MachineFunction &MF = DAG.getMachineFunction();
if (FoldedLoad) {
- MVT VT = *RC->vt_begin();
- bool isAligned = (RI.getStackAlignment() >= 16) ||
- RI.needsStackRealignment(MF);
- Load = DAG.getTargetNode(getLoadRegOpcode(RC, isAligned), dl,
- VT, MVT::Other,
- &AddrOps[0], AddrOps.size());
+ EVT VT = *RC->vt_begin();
+ std::pair<MachineInstr::mmo_iterator,
+ MachineInstr::mmo_iterator> MMOs =
+ MF.extractLoadMemRefs(cast<MachineSDNode>(N)->memoperands_begin(),
+ cast<MachineSDNode>(N)->memoperands_end());
+ bool isAligned = (*MMOs.first)->getAlignment() >= 16;
+ Load = DAG.getMachineNode(getLoadRegOpcode(0, RC, isAligned, TM), dl,
+ VT, MVT::Other, &AddrOps[0], AddrOps.size());
NewNodes.push_back(Load);
+
+ // Preserve memory reference information.
+ cast<MachineSDNode>(Load)->setMemRefs(MMOs.first, MMOs.second);
}
// Emit the data processing instruction.
- std::vector<MVT> VTs;
+ std::vector<EVT> VTs;
const TargetRegisterClass *DstRC = 0;
if (TID.getNumDefs() > 0) {
- const TargetOperandInfo &DstTOI = TID.OpInfo[0];
- DstRC = DstTOI.isLookupPtrRegClass()
- ? RI.getPointerRegClass() : RI.getRegClass(DstTOI.RegClass);
+ DstRC = TID.OpInfo[0].getRegClass(&RI);
VTs.push_back(*DstRC->vt_begin());
}
for (unsigned i = 0, e = N->getNumValues(); i != e; ++i) {
- MVT VT = N->getValueType(i);
+ EVT VT = N->getValueType(i);
if (VT != MVT::Other && i >= (unsigned)TID.getNumDefs())
VTs.push_back(VT);
}
if (Load)
BeforeOps.push_back(SDValue(Load, 0));
std::copy(AfterOps.begin(), AfterOps.end(), std::back_inserter(BeforeOps));
- SDNode *NewNode= DAG.getTargetNode(Opc, dl, VTs, &BeforeOps[0],
- BeforeOps.size());
+ SDNode *NewNode= DAG.getMachineNode(Opc, dl, VTs, &BeforeOps[0],
+ BeforeOps.size());
NewNodes.push_back(NewNode);
// Emit the store instruction.
AddrOps.pop_back();
AddrOps.push_back(SDValue(NewNode, 0));
AddrOps.push_back(Chain);
- bool isAligned = (RI.getStackAlignment() >= 16) ||
- RI.needsStackRealignment(MF);
- SDNode *Store = DAG.getTargetNode(getStoreRegOpcode(DstRC, isAligned), dl,
- MVT::Other, &AddrOps[0], AddrOps.size());
+ std::pair<MachineInstr::mmo_iterator,
+ MachineInstr::mmo_iterator> MMOs =
+ MF.extractStoreMemRefs(cast<MachineSDNode>(N)->memoperands_begin(),
+ cast<MachineSDNode>(N)->memoperands_end());
+ bool isAligned = (*MMOs.first)->getAlignment() >= 16;
+ SDNode *Store = DAG.getMachineNode(getStoreRegOpcode(0, DstRC,
+ isAligned, TM),
+ dl, MVT::Other,
+ &AddrOps[0], AddrOps.size());
NewNodes.push_back(Store);
+
+ // Preserve memory reference information.
+ cast<MachineSDNode>(Load)->setMemRefs(MMOs.first, MMOs.second);
}
return true;
}
unsigned X86InstrInfo::getOpcodeAfterMemoryUnfold(unsigned Opc,
- bool UnfoldLoad, bool UnfoldStore) const {
- DenseMap<unsigned*, std::pair<unsigned,unsigned> >::iterator I =
+ bool UnfoldLoad, bool UnfoldStore,
+ unsigned *LoadRegIndex) const {
+ DenseMap<unsigned*, std::pair<unsigned,unsigned> >::const_iterator I =
MemOp2RegOpTable.find((unsigned*)Opc);
if (I == MemOp2RegOpTable.end())
return 0;
return 0;
if (UnfoldStore && !FoldedStore)
return 0;
+ if (LoadRegIndex)
+ *LoadRegIndex = I->second.second & 0xf;
return I->second.first;
}
-bool X86InstrInfo::BlockHasNoFallThrough(const MachineBasicBlock &MBB) const {
- if (MBB.empty()) return false;
-
- switch (MBB.back().getOpcode()) {
- case X86::TCRETURNri:
- case X86::TCRETURNdi:
- case X86::RET: // Return.
- case X86::RETI:
- case X86::TAILJMPd:
- case X86::TAILJMPr:
- case X86::TAILJMPm:
- case X86::JMP: // Uncond branch.
- case X86::JMP32r: // Indirect branch.
- case X86::JMP64r: // Indirect branch (64-bit).
- case X86::JMP32m: // Indirect branch through mem.
- case X86::JMP64m: // Indirect branch through mem (64-bit).
- return true;
- default: return false;
- }
-}
-
bool X86InstrInfo::
ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const {
assert(Cond.size() == 1 && "Invalid X86 branch condition!");
case X86II::Imm16: return 2;
case X86II::Imm32: return 4;
case X86II::Imm64: return 8;
- default: assert(0 && "Immediate size not set!");
+ default: llvm_unreachable("Immediate size not set!");
return 0;
}
}
} else if (RelocOp->isJTI()) {
FinalSize += sizeJumpTableAddress(false);
} else {
- assert(0 && "Unknown value to relocate!");
+ llvm_unreachable("Unknown value to relocate!");
}
return FinalSize;
}
unsigned BaseReg = Base.getReg();
// Is a SIB byte needed?
- if ((!Is64BitMode || DispForReloc) && IndexReg.getReg() == 0 &&
- (BaseReg == 0 || X86RegisterInfo::getX86RegNum(BaseReg) != N86::ESP)) {
+ if ((!Is64BitMode || DispForReloc || BaseReg != 0) &&
+ IndexReg.getReg() == 0 &&
+ (BaseReg == 0 || X86RegisterInfo::getX86RegNum(BaseReg) != N86::ESP)) {
if (BaseReg == 0) { // Just a displacement?
// Emit special case [disp32] encoding
++FinalSize;
// Emit the lock opcode prefix as needed.
if (Desc->TSFlags & X86II::LOCK) ++FinalSize;
- // Emit segment overrid opcode prefix as needed.
+ // Emit segment override opcode prefix as needed.
switch (Desc->TSFlags & X86II::SegOvrMask) {
case X86II::FS:
case X86II::GS:
++FinalSize;
break;
- default: assert(0 && "Invalid segment!");
+ default: llvm_unreachable("Invalid segment!");
case 0: break; // No segment override!
}
case X86II::TA: // 0F 3A
Need0FPrefix = true;
break;
+ case X86II::TF: // F2 0F 38
+ ++FinalSize;
+ Need0FPrefix = true;
+ break;
case X86II::REP: break; // already handled.
case X86II::XS: // F3 0F
++FinalSize;
case X86II::DC: case X86II::DD: case X86II::DE: case X86II::DF:
++FinalSize;
break; // Two-byte opcode prefix
- default: assert(0 && "Invalid prefix!");
+ default: llvm_unreachable("Invalid prefix!");
case 0: break; // No prefix!
}
case X86II::T8: // 0F 38
++FinalSize;
break;
- case X86II::TA: // 0F 3A
+ case X86II::TA: // 0F 3A
+ ++FinalSize;
+ break;
+ case X86II::TF: // F2 0F 38
++FinalSize;
break;
}
unsigned CurOp = 0;
if (NumOps > 1 && Desc->getOperandConstraint(1, TOI::TIED_TO) != -1)
CurOp++;
+ else if (NumOps > 2 && Desc->getOperandConstraint(NumOps-1, TOI::TIED_TO)== 0)
+ // Skip the last source operand that is tied_to the dest reg. e.g. LXADD32
+ --NumOps;
switch (Desc->TSFlags & X86II::FormMask) {
- default: assert(0 && "Unknown FormMask value in X86 MachineCodeEmitter!");
+ default: llvm_unreachable("Unknown FormMask value in X86 MachineCodeEmitter!");
case X86II::Pseudo:
// Remember the current PC offset, this is the PIC relocation
// base address.
break;
case TargetInstrInfo::INLINEASM: {
const MachineFunction *MF = MI.getParent()->getParent();
- const char *AsmStr = MI.getOperand(0).getSymbolName();
- const TargetAsmInfo* AI = MF->getTarget().getTargetAsmInfo();
- FinalSize += AI->getInlineAsmLength(AsmStr);
+ const TargetInstrInfo &TII = *MF->getTarget().getInstrInfo();
+ FinalSize += TII.getInlineAsmLength(MI.getOperand(0).getSymbolName(),
+ *MF->getTarget().getMCAsmInfo());
break;
}
case TargetInstrInfo::DBG_LABEL:
case TargetInstrInfo::EH_LABEL:
break;
case TargetInstrInfo::IMPLICIT_DEF:
- case TargetInstrInfo::DECLARE:
- case X86::DWARF_LOC:
+ case TargetInstrInfo::KILL:
case X86::FP_REG_KILL:
break;
case X86::MOVPC32r: {
} else if (MO.isImm()) {
FinalSize += sizeConstant(X86InstrInfo::sizeOfImm(Desc));
} else {
- assert(0 && "Unknown RawFrm operand!");
+ llvm_unreachable("Unknown RawFrm operand!");
}
}
break;
case X86II::MRMDestMem: {
++FinalSize;
FinalSize += getMemModRMByteSize(MI, CurOp, IsPIC, Is64BitMode);
- CurOp += 5;
+ CurOp += X86AddrNumOperands + 1;
if (CurOp != NumOps) {
++CurOp;
FinalSize += sizeConstant(X86InstrInfo::sizeOfImm(Desc));
break;
case X86II::MRMSrcMem: {
+ int AddrOperands;
+ if (Opcode == X86::LEA64r || Opcode == X86::LEA64_32r ||
+ Opcode == X86::LEA16r || Opcode == X86::LEA32r)
+ AddrOperands = X86AddrNumOperands - 1; // No segment register
+ else
+ AddrOperands = X86AddrNumOperands;
++FinalSize;
FinalSize += getMemModRMByteSize(MI, CurOp+1, IsPIC, Is64BitMode);
- CurOp += 5;
+ CurOp += AddrOperands + 1;
if (CurOp != NumOps) {
++CurOp;
FinalSize += sizeConstant(X86InstrInfo::sizeOfImm(Desc));
case X86II::MRM4r: case X86II::MRM5r:
case X86II::MRM6r: case X86II::MRM7r:
++FinalSize;
- ++CurOp;
- FinalSize += sizeRegModRMByte();
+ if (Desc->getOpcode() == X86::LFENCE ||
+ Desc->getOpcode() == X86::MFENCE) {
+ // Special handling of lfence and mfence;
+ FinalSize += sizeRegModRMByte();
+ } else if (Desc->getOpcode() == X86::MONITOR ||
+ Desc->getOpcode() == X86::MWAIT) {
+ // Special handling of monitor and mwait.
+ FinalSize += sizeRegModRMByte() + 1; // +1 for the opcode.
+ } else {
+ ++CurOp;
+ FinalSize += sizeRegModRMByte();
+ }
if (CurOp != NumOps) {
const MachineOperand &MO1 = MI.getOperand(CurOp++);
++FinalSize;
FinalSize += getMemModRMByteSize(MI, CurOp, IsPIC, Is64BitMode);
- CurOp += 4;
+ CurOp += X86AddrNumOperands;
if (CurOp != NumOps) {
const MachineOperand &MO = MI.getOperand(CurOp++);
}
if (!Desc->isVariadic() && CurOp != NumOps) {
- cerr << "Cannot determine size: ";
- MI.dump();
- cerr << '\n';
- abort();
+ std::string msg;
+ raw_string_ostream Msg(msg);
+ Msg << "Cannot determine size: " << MI;
+ llvm_report_error(Msg.str());
}
unsigned X86InstrInfo::GetInstSizeInBytes(const MachineInstr *MI) const {
const TargetInstrDesc &Desc = MI->getDesc();
- bool IsPIC = (TM.getRelocationModel() == Reloc::PIC_);
+ bool IsPIC = TM.getRelocationModel() == Reloc::PIC_;
bool Is64BitMode = TM.getSubtargetImpl()->is64Bit();
unsigned Size = GetInstSizeWithDesc(*MI, &Desc, IsPIC, Is64BitMode);
- if (Desc.getOpcode() == X86::MOVPC32r) {
+ if (Desc.getOpcode() == X86::MOVPC32r)
Size += GetInstSizeWithDesc(*MI, &get(X86::POP32r), IsPIC, Is64BitMode);
- }
return Size;
}
const TargetInstrInfo *TII = TM.getInstrInfo();
// Operand of MovePCtoStack is completely ignored by asm printer. It's
// only used in JIT code emission as displacement to pc.
- BuildMI(FirstMBB, MBBI, DL, TII->get(X86::MOVPC32r), PC)
- .addImm(0);
+ BuildMI(FirstMBB, MBBI, DL, TII->get(X86::MOVPC32r), PC).addImm(0);
// If we're using vanilla 'GOT' PIC style, we should use relative addressing
- // not to pc, but to _GLOBAL_ADDRESS_TABLE_ external
- if (TM.getRelocationModel() == Reloc::PIC_ &&
- TM.getSubtarget<X86Subtarget>().isPICStyleGOT()) {
- GlobalBaseReg =
- RegInfo.createVirtualRegister(X86::GR32RegisterClass);
+ // not to pc, but to _GLOBAL_OFFSET_TABLE_ external.
+ if (TM.getSubtarget<X86Subtarget>().isPICStyleGOT()) {
+ GlobalBaseReg = RegInfo.createVirtualRegister(X86::GR32RegisterClass);
+ // Generate addl $__GLOBAL_OFFSET_TABLE_ + [.-piclabel], %some_register
BuildMI(FirstMBB, MBBI, DL, TII->get(X86::ADD32ri), GlobalBaseReg)
- .addReg(PC).addExternalSymbol("_GLOBAL_OFFSET_TABLE_");
+ .addReg(PC).addExternalSymbol("_GLOBAL_OFFSET_TABLE_",
+ X86II::MO_GOT_ABSOLUTE_ADDRESS);
} else {
GlobalBaseReg = PC;
}
projects / oota-llvm.git / blobdiff