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-rw-r--r--lib/Target/X86/X86InstrInfo.cpp136
1 files changed, 73 insertions, 63 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index 6993577..0d3afc4 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -28,6 +28,7 @@
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
@@ -97,14 +98,11 @@ struct X86OpTblEntry {
// Pin the vtable to this file.
void X86InstrInfo::anchor() {}
-X86InstrInfo::X86InstrInfo(X86TargetMachine &tm)
- : X86GenInstrInfo((tm.getSubtarget<X86Subtarget>().is64Bit()
- ? X86::ADJCALLSTACKDOWN64
- : X86::ADJCALLSTACKDOWN32),
- (tm.getSubtarget<X86Subtarget>().is64Bit()
- ? X86::ADJCALLSTACKUP64
- : X86::ADJCALLSTACKUP32)),
- TM(tm), RI(tm) {
+X86InstrInfo::X86InstrInfo(X86Subtarget &STI)
+ : X86GenInstrInfo(
+ (STI.is64Bit() ? X86::ADJCALLSTACKDOWN64 : X86::ADJCALLSTACKDOWN32),
+ (STI.is64Bit() ? X86::ADJCALLSTACKUP64 : X86::ADJCALLSTACKUP32)),
+ Subtarget(STI), RI(STI) {
static const X86OpTblEntry OpTbl2Addr[] = {
{ X86::ADC32ri, X86::ADC32mi, 0 },
@@ -1472,7 +1470,7 @@ X86InstrInfo::isCoalescableExtInstr(const MachineInstr &MI,
case X86::MOVSX32rr8:
case X86::MOVZX32rr8:
case X86::MOVSX64rr8:
- if (!TM.getSubtarget<X86Subtarget>().is64Bit())
+ if (!Subtarget.is64Bit())
// It's not always legal to reference the low 8-bit of the larger
// register in 32-bit mode.
return false;
@@ -1950,7 +1948,7 @@ X86InstrInfo::convertToThreeAddressWithLEA(unsigned MIOpc,
MachineRegisterInfo &RegInfo = MFI->getParent()->getRegInfo();
unsigned leaOutReg = RegInfo.createVirtualRegister(&X86::GR32RegClass);
unsigned Opc, leaInReg;
- if (TM.getSubtarget<X86Subtarget>().is64Bit()) {
+ if (Subtarget.is64Bit()) {
Opc = X86::LEA64_32r;
leaInReg = RegInfo.createVirtualRegister(&X86::GR64_NOSPRegClass);
} else {
@@ -2006,7 +2004,7 @@ X86InstrInfo::convertToThreeAddressWithLEA(unsigned MIOpc,
// just a single insert_subreg.
addRegReg(MIB, leaInReg, true, leaInReg, false);
} else {
- if (TM.getSubtarget<X86Subtarget>().is64Bit())
+ if (Subtarget.is64Bit())
leaInReg2 = RegInfo.createVirtualRegister(&X86::GR64_NOSPRegClass);
else
leaInReg2 = RegInfo.createVirtualRegister(&X86::GR32_NOSPRegClass);
@@ -2076,13 +2074,13 @@ X86InstrInfo::convertToThreeAddress(MachineFunction::iterator &MFI,
// 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();
+ bool is64Bit = Subtarget.is64Bit();
unsigned MIOpc = MI->getOpcode();
switch (MIOpc) {
case X86::SHUFPSrri: {
assert(MI->getNumOperands() == 4 && "Unknown shufps instruction!");
- if (!TM.getSubtarget<X86Subtarget>().hasSSE2()) return nullptr;
+ if (!Subtarget.hasSSE2()) return nullptr;
unsigned B = MI->getOperand(1).getReg();
unsigned C = MI->getOperand(2).getReg();
@@ -2094,7 +2092,7 @@ X86InstrInfo::convertToThreeAddress(MachineFunction::iterator &MFI,
}
case X86::SHUFPDrri: {
assert(MI->getNumOperands() == 4 && "Unknown shufpd instruction!");
- if (!TM.getSubtarget<X86Subtarget>().hasSSE2()) return nullptr;
+ if (!Subtarget.hasSSE2()) return nullptr;
unsigned B = MI->getOperand(1).getReg();
unsigned C = MI->getOperand(2).getReg();
@@ -2672,8 +2670,7 @@ static X86::CondCode getSwappedCondition(X86::CondCode CC) {
/// getSETFromCond - Return a set opcode for the given condition and
/// whether it has memory operand.
-static unsigned getSETFromCond(X86::CondCode CC,
- bool HasMemoryOperand) {
+unsigned X86::getSETFromCond(CondCode CC, bool HasMemoryOperand) {
static const uint16_t Opc[16][2] = {
{ X86::SETAr, X86::SETAm },
{ X86::SETAEr, X86::SETAEm },
@@ -2693,14 +2690,14 @@ static unsigned getSETFromCond(X86::CondCode CC,
{ X86::SETSr, X86::SETSm }
};
- assert(CC < 16 && "Can only handle standard cond codes");
+ assert(CC <= LAST_VALID_COND && "Can only handle standard cond codes");
return Opc[CC][HasMemoryOperand ? 1 : 0];
}
/// getCMovFromCond - Return a cmov opcode for the given condition,
/// register size in bytes, and operand type.
-static unsigned getCMovFromCond(X86::CondCode CC, unsigned RegBytes,
- bool HasMemoryOperand) {
+unsigned X86::getCMovFromCond(CondCode CC, unsigned RegBytes,
+ bool HasMemoryOperand) {
static const uint16_t Opc[32][3] = {
{ X86::CMOVA16rr, X86::CMOVA32rr, X86::CMOVA64rr },
{ X86::CMOVAE16rr, X86::CMOVAE32rr, X86::CMOVAE64rr },
@@ -2976,7 +2973,7 @@ canInsertSelect(const MachineBasicBlock &MBB,
unsigned TrueReg, unsigned FalseReg,
int &CondCycles, int &TrueCycles, int &FalseCycles) const {
// Not all subtargets have cmov instructions.
- if (!TM.getSubtarget<X86Subtarget>().hasCMov())
+ if (!Subtarget.hasCMov())
return false;
if (Cond.size() != 1)
return false;
@@ -3027,8 +3024,7 @@ static bool isHReg(unsigned Reg) {
// Try and copy between VR128/VR64 and GR64 registers.
static unsigned CopyToFromAsymmetricReg(unsigned DestReg, unsigned SrcReg,
- const X86Subtarget& Subtarget) {
-
+ const X86Subtarget &Subtarget) {
// SrcReg(VR128) -> DestReg(GR64)
// SrcReg(VR64) -> DestReg(GR64)
@@ -3107,8 +3103,8 @@ void X86InstrInfo::copyPhysReg(MachineBasicBlock &MBB,
unsigned DestReg, unsigned SrcReg,
bool KillSrc) const {
// First deal with the normal symmetric copies.
- bool HasAVX = TM.getSubtarget<X86Subtarget>().hasAVX();
- bool HasAVX512 = TM.getSubtarget<X86Subtarget>().hasAVX512();
+ bool HasAVX = Subtarget.hasAVX();
+ bool HasAVX512 = Subtarget.hasAVX512();
unsigned Opc = 0;
if (X86::GR64RegClass.contains(DestReg, SrcReg))
Opc = X86::MOV64rr;
@@ -3120,7 +3116,7 @@ void X86InstrInfo::copyPhysReg(MachineBasicBlock &MBB,
// 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()) {
+ Subtarget.is64Bit()) {
Opc = X86::MOV8rr_NOREX;
// Both operands must be encodable without an REX prefix.
assert(X86::GR8_NOREXRegClass.contains(SrcReg, DestReg) &&
@@ -3137,7 +3133,7 @@ void X86InstrInfo::copyPhysReg(MachineBasicBlock &MBB,
else if (X86::VR256RegClass.contains(DestReg, SrcReg))
Opc = X86::VMOVAPSYrr;
if (!Opc)
- Opc = CopyToFromAsymmetricReg(DestReg, SrcReg, TM.getSubtarget<X86Subtarget>());
+ Opc = CopyToFromAsymmetricReg(DestReg, SrcReg, Subtarget);
if (Opc) {
BuildMI(MBB, MI, DL, get(Opc), DestReg)
@@ -3183,9 +3179,9 @@ void X86InstrInfo::copyPhysReg(MachineBasicBlock &MBB,
static unsigned getLoadStoreRegOpcode(unsigned Reg,
const TargetRegisterClass *RC,
bool isStackAligned,
- const TargetMachine &TM,
+ const X86Subtarget &STI,
bool load) {
- if (TM.getSubtarget<X86Subtarget>().hasAVX512()) {
+ if (STI.hasAVX512()) {
if (X86::VK8RegClass.hasSubClassEq(RC) ||
X86::VK16RegClass.hasSubClassEq(RC))
return load ? X86::KMOVWkm : X86::KMOVWmk;
@@ -3197,13 +3193,13 @@ static unsigned getLoadStoreRegOpcode(unsigned Reg,
return load ? X86::VMOVUPSZrm : X86::VMOVUPSZmr;
}
- bool HasAVX = TM.getSubtarget<X86Subtarget>().hasAVX();
+ bool HasAVX = STI.hasAVX();
switch (RC->getSize()) {
default:
llvm_unreachable("Unknown spill size");
case 1:
assert(X86::GR8RegClass.hasSubClassEq(RC) && "Unknown 1-byte regclass");
- if (TM.getSubtarget<X86Subtarget>().is64Bit())
+ if (STI.is64Bit())
// Copying to or from a physical H register on x86-64 requires a NOREX
// move. Otherwise use a normal move.
if (isHReg(Reg) || X86::GR8_ABCD_HRegClass.hasSubClassEq(RC))
@@ -3270,16 +3266,16 @@ static unsigned getLoadStoreRegOpcode(unsigned Reg,
static unsigned getStoreRegOpcode(unsigned SrcReg,
const TargetRegisterClass *RC,
bool isStackAligned,
- TargetMachine &TM) {
- return getLoadStoreRegOpcode(SrcReg, RC, isStackAligned, TM, false);
+ const X86Subtarget &STI) {
+ return getLoadStoreRegOpcode(SrcReg, RC, isStackAligned, STI, false);
}
static unsigned getLoadRegOpcode(unsigned DestReg,
const TargetRegisterClass *RC,
bool isStackAligned,
- const TargetMachine &TM) {
- return getLoadStoreRegOpcode(DestReg, RC, isStackAligned, TM, true);
+ const X86Subtarget &STI) {
+ return getLoadStoreRegOpcode(DestReg, RC, isStackAligned, STI, true);
}
void X86InstrInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
@@ -3291,9 +3287,10 @@ void X86InstrInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
assert(MF.getFrameInfo()->getObjectSize(FrameIdx) >= RC->getSize() &&
"Stack slot too small for store");
unsigned Alignment = std::max<uint32_t>(RC->getSize(), 16);
- bool isAligned = (TM.getFrameLowering()->getStackAlignment() >= Alignment) ||
- RI.canRealignStack(MF);
- unsigned Opc = getStoreRegOpcode(SrcReg, RC, isAligned, TM);
+ bool isAligned =
+ (MF.getTarget().getFrameLowering()->getStackAlignment() >= Alignment) ||
+ RI.canRealignStack(MF);
+ unsigned Opc = getStoreRegOpcode(SrcReg, RC, isAligned, Subtarget);
DebugLoc DL = MBB.findDebugLoc(MI);
addFrameReference(BuildMI(MBB, MI, DL, get(Opc)), FrameIdx)
.addReg(SrcReg, getKillRegState(isKill));
@@ -3309,7 +3306,7 @@ void X86InstrInfo::storeRegToAddr(MachineFunction &MF, unsigned SrcReg,
unsigned Alignment = std::max<uint32_t>(RC->getSize(), 16);
bool isAligned = MMOBegin != MMOEnd &&
(*MMOBegin)->getAlignment() >= Alignment;
- unsigned Opc = getStoreRegOpcode(SrcReg, RC, isAligned, TM);
+ unsigned Opc = getStoreRegOpcode(SrcReg, RC, isAligned, Subtarget);
DebugLoc DL;
MachineInstrBuilder MIB = BuildMI(MF, DL, get(Opc));
for (unsigned i = 0, e = Addr.size(); i != e; ++i)
@@ -3327,9 +3324,10 @@ void X86InstrInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
const TargetRegisterInfo *TRI) const {
const MachineFunction &MF = *MBB.getParent();
unsigned Alignment = std::max<uint32_t>(RC->getSize(), 16);
- bool isAligned = (TM.getFrameLowering()->getStackAlignment() >= Alignment) ||
- RI.canRealignStack(MF);
- unsigned Opc = getLoadRegOpcode(DestReg, RC, isAligned, TM);
+ bool isAligned =
+ (MF.getTarget().getFrameLowering()->getStackAlignment() >= Alignment) ||
+ RI.canRealignStack(MF);
+ unsigned Opc = getLoadRegOpcode(DestReg, RC, isAligned, Subtarget);
DebugLoc DL = MBB.findDebugLoc(MI);
addFrameReference(BuildMI(MBB, MI, DL, get(Opc), DestReg), FrameIdx);
}
@@ -3343,7 +3341,7 @@ void X86InstrInfo::loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
unsigned Alignment = std::max<uint32_t>(RC->getSize(), 16);
bool isAligned = MMOBegin != MMOEnd &&
(*MMOBegin)->getAlignment() >= Alignment;
- unsigned Opc = getLoadRegOpcode(DestReg, RC, isAligned, TM);
+ unsigned Opc = getLoadRegOpcode(DestReg, RC, isAligned, Subtarget);
DebugLoc DL;
MachineInstrBuilder MIB = BuildMI(MF, DL, get(Opc), DestReg);
for (unsigned i = 0, e = Addr.size(); i != e; ++i)
@@ -3741,7 +3739,7 @@ optimizeCompareInstr(MachineInstr *CmpInstr, unsigned SrcReg, unsigned SrcReg2,
continue;
// EFLAGS is used by this instruction.
- X86::CondCode OldCC;
+ X86::CondCode OldCC = X86::COND_INVALID;
bool OpcIsSET = false;
if (IsCmpZero || IsSwapped) {
// We decode the condition code from opcode.
@@ -3964,7 +3962,7 @@ static bool Expand2AddrUndef(MachineInstrBuilder &MIB,
}
bool X86InstrInfo::expandPostRAPseudo(MachineBasicBlock::iterator MI) const {
- bool HasAVX = TM.getSubtarget<X86Subtarget>().hasAVX();
+ bool HasAVX = Subtarget.hasAVX();
MachineInstrBuilder MIB(*MI->getParent()->getParent(), MI);
switch (MI->getOpcode()) {
case X86::MOV32r0:
@@ -4075,7 +4073,7 @@ X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
unsigned Size, unsigned Align) const {
const DenseMap<unsigned,
std::pair<unsigned,unsigned> > *OpcodeTablePtr = nullptr;
- bool isCallRegIndirect = TM.getSubtarget<X86Subtarget>().callRegIndirect();
+ bool isCallRegIndirect = Subtarget.callRegIndirect();
bool isTwoAddrFold = false;
// Atom favors register form of call. So, we do not fold loads into calls
@@ -4316,7 +4314,7 @@ breakPartialRegDependency(MachineBasicBlock::iterator MI, unsigned OpNum,
if (X86::VR128RegClass.contains(Reg)) {
// These instructions are all floating point domain, so xorps is the best
// choice.
- bool HasAVX = TM.getSubtarget<X86Subtarget>().hasAVX();
+ bool HasAVX = Subtarget.hasAVX();
unsigned Opc = HasAVX ? X86::VXORPSrr : X86::XORPSrr;
BuildMI(*MI->getParent(), MI, MI->getDebugLoc(), get(Opc), Reg)
.addReg(Reg, RegState::Undef).addReg(Reg, RegState::Undef);
@@ -4352,7 +4350,8 @@ X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF, MachineInstr *MI,
// If the function stack isn't realigned we don't want to fold instructions
// that need increased alignment.
if (!RI.needsStackRealignment(MF))
- Alignment = std::min(Alignment, TM.getFrameLowering()->getStackAlignment());
+ Alignment = std::min(
+ Alignment, MF.getTarget().getFrameLowering()->getStackAlignment());
if (Ops.size() == 2 && Ops[0] == 0 && Ops[1] == 1) {
unsigned NewOpc = 0;
unsigned RCSize = 0;
@@ -4453,14 +4452,14 @@ MachineInstr* X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
// Create a constant-pool entry and operands to load from it.
// Medium and large mode can't fold loads this way.
- if (TM.getCodeModel() != CodeModel::Small &&
- TM.getCodeModel() != CodeModel::Kernel)
+ if (MF.getTarget().getCodeModel() != CodeModel::Small &&
+ MF.getTarget().getCodeModel() != CodeModel::Kernel)
return nullptr;
// x86-32 PIC requires a PIC base register for constant pools.
unsigned PICBase = 0;
- if (TM.getRelocationModel() == Reloc::PIC_) {
- if (TM.getSubtarget<X86Subtarget>().is64Bit())
+ if (MF.getTarget().getRelocationModel() == Reloc::PIC_) {
+ if (Subtarget.is64Bit())
PICBase = X86::RIP;
else
// FIXME: PICBase = getGlobalBaseReg(&MF);
@@ -4600,7 +4599,7 @@ bool X86InstrInfo::unfoldMemoryOperand(MachineFunction &MF, MachineInstr *MI,
const TargetRegisterClass *RC = getRegClass(MCID, Index, &RI, MF);
if (!MI->hasOneMemOperand() &&
RC == &X86::VR128RegClass &&
- !TM.getSubtarget<X86Subtarget>().isUnalignedMemAccessFast())
+ !Subtarget.isUnalignedMemAccessFast())
// Without memoperands, loadRegFromAddr and storeRegToStackSlot will
// conservatively assume the address is unaligned. That's bad for
// performance.
@@ -4748,13 +4747,13 @@ X86InstrInfo::unfoldMemoryOperand(SelectionDAG &DAG, SDNode *N,
cast<MachineSDNode>(N)->memoperands_end());
if (!(*MMOs.first) &&
RC == &X86::VR128RegClass &&
- !TM.getSubtarget<X86Subtarget>().isUnalignedMemAccessFast())
+ !Subtarget.isUnalignedMemAccessFast())
// Do not introduce a slow unaligned load.
return false;
unsigned Alignment = RC->getSize() == 32 ? 32 : 16;
bool isAligned = (*MMOs.first) &&
(*MMOs.first)->getAlignment() >= Alignment;
- Load = DAG.getMachineNode(getLoadRegOpcode(0, RC, isAligned, TM), dl,
+ Load = DAG.getMachineNode(getLoadRegOpcode(0, RC, isAligned, Subtarget), dl,
VT, MVT::Other, AddrOps);
NewNodes.push_back(Load);
@@ -4791,15 +4790,15 @@ X86InstrInfo::unfoldMemoryOperand(SelectionDAG &DAG, SDNode *N,
cast<MachineSDNode>(N)->memoperands_end());
if (!(*MMOs.first) &&
RC == &X86::VR128RegClass &&
- !TM.getSubtarget<X86Subtarget>().isUnalignedMemAccessFast())
+ !Subtarget.isUnalignedMemAccessFast())
// Do not introduce a slow unaligned store.
return false;
unsigned Alignment = RC->getSize() == 32 ? 32 : 16;
bool isAligned = (*MMOs.first) &&
(*MMOs.first)->getAlignment() >= Alignment;
- SDNode *Store = DAG.getMachineNode(getStoreRegOpcode(0, DstRC,
- isAligned, TM),
- dl, MVT::Other, AddrOps);
+ SDNode *Store =
+ DAG.getMachineNode(getStoreRegOpcode(0, DstRC, isAligned, Subtarget),
+ dl, MVT::Other, AddrOps);
NewNodes.push_back(Store);
// Preserve memory reference information.
@@ -4960,7 +4959,7 @@ bool X86InstrInfo::shouldScheduleLoadsNear(SDNode *Load1, SDNode *Load2,
default:
// XMM registers. In 64-bit mode we can be a bit more aggressive since we
// have 16 of them to play with.
- if (TM.getSubtargetImpl()->is64Bit()) {
+ if (Subtarget.is64Bit()) {
if (NumLoads >= 3)
return false;
} else if (NumLoads) {
@@ -4986,7 +4985,7 @@ bool X86InstrInfo::shouldScheduleAdjacent(MachineInstr* First,
// Check if this processor supports macro-fusion. Since this is a minor
// heuristic, we haven't specifically reserved a feature. hasAVX is a decent
// proxy for SandyBridge+.
- if (!TM.getSubtarget<X86Subtarget>().hasAVX())
+ if (!Subtarget.hasAVX())
return false;
enum {
@@ -5038,6 +5037,7 @@ bool X86InstrInfo::shouldScheduleAdjacent(MachineInstr* First,
case X86::TEST16rm:
case X86::TEST32rm:
case X86::TEST64rm:
+ case X86::TEST8ri_NOREX:
case X86::AND16i16:
case X86::AND16ri:
case X86::AND16ri8:
@@ -5168,7 +5168,7 @@ isSafeToMoveRegClassDefs(const TargetRegisterClass *RC) const {
/// TODO: Eliminate this and move the code to X86MachineFunctionInfo.
///
unsigned X86InstrInfo::getGlobalBaseReg(MachineFunction *MF) const {
- assert(!TM.getSubtarget<X86Subtarget>().is64Bit() &&
+ assert(!Subtarget.is64Bit() &&
"X86-64 PIC uses RIP relative addressing");
X86MachineFunctionInfo *X86FI = MF->getInfo<X86MachineFunctionInfo>();
@@ -5271,7 +5271,7 @@ static const uint16_t *lookupAVX2(unsigned opcode, unsigned domain) {
std::pair<uint16_t, uint16_t>
X86InstrInfo::getExecutionDomain(const MachineInstr *MI) const {
uint16_t domain = (MI->getDesc().TSFlags >> X86II::SSEDomainShift) & 3;
- bool hasAVX2 = TM.getSubtarget<X86Subtarget>().hasAVX2();
+ bool hasAVX2 = Subtarget.hasAVX2();
uint16_t validDomains = 0;
if (domain && lookup(MI->getOpcode(), domain))
validDomains = 0xe;
@@ -5286,7 +5286,7 @@ void X86InstrInfo::setExecutionDomain(MachineInstr *MI, unsigned Domain) const {
assert(dom && "Not an SSE instruction");
const uint16_t *table = lookup(MI->getOpcode(), dom);
if (!table) { // try the other table
- assert((TM.getSubtarget<X86Subtarget>().hasAVX2() || Domain < 3) &&
+ assert((Subtarget.hasAVX2() || Domain < 3) &&
"256-bit vector operations only available in AVX2");
table = lookupAVX2(MI->getOpcode(), dom);
}
@@ -5299,6 +5299,16 @@ void X86InstrInfo::getNoopForMachoTarget(MCInst &NopInst) const {
NopInst.setOpcode(X86::NOOP);
}
+void X86InstrInfo::getUnconditionalBranch(
+ MCInst &Branch, const MCSymbolRefExpr *BranchTarget) const {
+ Branch.setOpcode(X86::JMP_4);
+ Branch.addOperand(MCOperand::CreateExpr(BranchTarget));
+}
+
+void X86InstrInfo::getTrap(MCInst &MI) const {
+ MI.setOpcode(X86::TRAP);
+}
+
bool X86InstrInfo::isHighLatencyDef(int opc) const {
switch (opc) {
default: return false;
generated by cgit v1.1 at 2024-05-17 21:22:23 +0000