case X86::ST4: case X86::ST5: case X86::ST6: case X86::ST7:
return RegNo-X86::ST0;
- case X86::XMM0: case X86::XMM8: case X86::MM0:
+ case X86::XMM0: case X86::XMM8:
+ case X86::YMM0: case X86::YMM8: case X86::MM0:
return 0;
- case X86::XMM1: case X86::XMM9: case X86::MM1:
+ case X86::XMM1: case X86::XMM9:
+ case X86::YMM1: case X86::YMM9: case X86::MM1:
return 1;
- case X86::XMM2: case X86::XMM10: case X86::MM2:
+ case X86::XMM2: case X86::XMM10:
+ case X86::YMM2: case X86::YMM10: case X86::MM2:
return 2;
- case X86::XMM3: case X86::XMM11: case X86::MM3:
+ case X86::XMM3: case X86::XMM11:
+ case X86::YMM3: case X86::YMM11: case X86::MM3:
return 3;
- case X86::XMM4: case X86::XMM12: case X86::MM4:
+ case X86::XMM4: case X86::XMM12:
+ case X86::YMM4: case X86::YMM12: case X86::MM4:
return 4;
- case X86::XMM5: case X86::XMM13: case X86::MM5:
+ case X86::XMM5: case X86::XMM13:
+ case X86::YMM5: case X86::YMM13: case X86::MM5:
return 5;
- case X86::XMM6: case X86::XMM14: case X86::MM6:
+ case X86::XMM6: case X86::XMM14:
+ case X86::YMM6: case X86::YMM14: case X86::MM6:
return 6;
- case X86::XMM7: case X86::XMM15: case X86::MM7:
+ case X86::XMM7: case X86::XMM15:
+ case X86::YMM7: case X86::YMM15: case X86::MM7:
return 7;
+ case X86::ES:
+ return 0;
+ case X86::CS:
+ return 1;
+ case X86::SS:
+ return 2;
+ case X86::DS:
+ return 3;
+ case X86::FS:
+ return 4;
+ case X86::GS:
+ return 5;
+
+ case X86::CR0:
+ return 0;
+ case X86::CR1:
+ return 1;
+ case X86::CR2:
+ return 2;
+ case X86::CR3:
+ return 3;
+ case X86::CR4:
+ return 4;
+
+ case X86::DR0:
+ return 0;
+ case X86::DR1:
+ return 1;
+ case X86::DR2:
+ return 2;
+ case X86::DR3:
+ return 3;
+ case X86::DR4:
+ return 4;
+ case X86::DR5:
+ return 5;
+ case X86::DR6:
+ return 6;
+ case X86::DR7:
+ return 7;
+
+ // Pseudo index registers are equivalent to a "none"
+ // scaled index (See Intel Manual 2A, table 2-3)
+ case X86::EIZ:
+ case X86::RIZ:
+ return 4;
+
default:
assert(isVirtualRegister(RegNo) && "Unknown physical register!");
llvm_unreachable("Register allocator hasn't allocated reg correctly yet!");
unsigned SubIdx) const {
switch (SubIdx) {
default: return 0;
- case 1:
- // 8-bit
+ case X86::sub_8bit:
if (B == &X86::GR8RegClass) {
if (A->getSize() == 2 || A->getSize() == 4 || A->getSize() == 8)
return A;
return &X86::GR16_NOREXRegClass;
else if (A == &X86::GR16_ABCDRegClass)
return &X86::GR16_ABCDRegClass;
- } else if (B == &X86::FR32RegClass) {
- return A;
}
break;
- case 2:
- // 8-bit hi
+ case X86::sub_8bit_hi:
if (B == &X86::GR8_ABCD_HRegClass) {
if (A == &X86::GR64RegClass || A == &X86::GR64_ABCDRegClass ||
A == &X86::GR64_NOREXRegClass ||
else if (A == &X86::GR16RegClass || A == &X86::GR16_ABCDRegClass ||
A == &X86::GR16_NOREXRegClass)
return &X86::GR16_ABCDRegClass;
- } else if (B == &X86::FR64RegClass) {
- return A;
}
break;
- case 3:
- // 16-bit
+ case X86::sub_16bit:
if (B == &X86::GR16RegClass) {
if (A->getSize() == 4 || A->getSize() == 8)
return A;
return &X86::GR32_NOREXRegClass;
else if (A == &X86::GR32_ABCDRegClass)
return &X86::GR64_ABCDRegClass;
- } else if (B == &X86::VR128RegClass) {
- return A;
}
break;
- case 4:
- // 32-bit
+ case X86::sub_32bit:
if (B == &X86::GR32RegClass || B == &X86::GR32_NOSPRegClass) {
if (A->getSize() == 8)
return A;
return &X86::GR64_ABCDRegClass;
}
break;
+ case X86::sub_ss:
+ if (B == &X86::FR32RegClass)
+ return A;
+ break;
+ case X86::sub_sd:
+ if (B == &X86::FR64RegClass)
+ return A;
+ break;
+ case X86::sub_xmm:
+ if (B == &X86::VR128RegClass)
+ return A;
+ break;
}
return 0;
}
}
}
-const TargetRegisterClass* const*
-X86RegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
- bool callsEHReturn = false;
- if (MF)
- callsEHReturn = MF->getMMI().callsEHReturn();
-
- static const TargetRegisterClass * const CalleeSavedRegClasses32Bit[] = {
- &X86::GR32RegClass, &X86::GR32RegClass,
- &X86::GR32RegClass, &X86::GR32RegClass, 0
- };
- static const TargetRegisterClass * const CalleeSavedRegClasses32EHRet[] = {
- &X86::GR32RegClass, &X86::GR32RegClass,
- &X86::GR32RegClass, &X86::GR32RegClass,
- &X86::GR32RegClass, &X86::GR32RegClass, 0
- };
- static const TargetRegisterClass * const CalleeSavedRegClasses64Bit[] = {
- &X86::GR64RegClass, &X86::GR64RegClass,
- &X86::GR64RegClass, &X86::GR64RegClass,
- &X86::GR64RegClass, &X86::GR64RegClass, 0
- };
- static const TargetRegisterClass * const CalleeSavedRegClasses64EHRet[] = {
- &X86::GR64RegClass, &X86::GR64RegClass,
- &X86::GR64RegClass, &X86::GR64RegClass,
- &X86::GR64RegClass, &X86::GR64RegClass,
- &X86::GR64RegClass, &X86::GR64RegClass, 0
- };
- static const TargetRegisterClass * const CalleeSavedRegClassesWin64[] = {
- &X86::GR64RegClass, &X86::GR64RegClass,
- &X86::GR64RegClass, &X86::GR64RegClass,
- &X86::GR64RegClass, &X86::GR64RegClass,
- &X86::GR64RegClass, &X86::GR64RegClass,
- &X86::VR128RegClass, &X86::VR128RegClass,
- &X86::VR128RegClass, &X86::VR128RegClass,
- &X86::VR128RegClass, &X86::VR128RegClass,
- &X86::VR128RegClass, &X86::VR128RegClass,
- &X86::VR128RegClass, &X86::VR128RegClass, 0
- };
-
- if (Is64Bit) {
- if (IsWin64)
- return CalleeSavedRegClassesWin64;
- else
- return (callsEHReturn ?
- CalleeSavedRegClasses64EHRet : CalleeSavedRegClasses64Bit);
- } else {
- return (callsEHReturn ?
- CalleeSavedRegClasses32EHRet : CalleeSavedRegClasses32Bit);
- }
-}
-
BitVector X86RegisterInfo::getReservedRegs(const MachineFunction &MF) const {
BitVector Reserved(getNumRegs());
// Set the stack-pointer register and its aliases as reserved.
bool X86RegisterInfo::needsStackRealignment(const MachineFunction &MF) const {
const MachineFrameInfo *MFI = MF.getFrameInfo();
const Function *F = MF.getFunction();
- bool requiresRealignment =
- RealignStack && ((MFI->getMaxAlignment() > StackAlign) ||
- F->hasFnAttr(Attribute::StackAlignment));
+ bool requiresRealignment = ((MFI->getMaxAlignment() > StackAlign) ||
+ F->hasFnAttr(Attribute::StackAlignment));
// FIXME: Currently we don't support stack realignment for functions with
// variable-sized allocas.
- // FIXME: Temporary disable the error - it seems to be too conservative.
+ // FIXME: It's more complicated than this...
if (0 && requiresRealignment && MFI->hasVarSizedObjects())
report_fatal_error(
"Stack realignment in presense of dynamic allocas is not supported");
- return (requiresRealignment && !MFI->hasVarSizedObjects());
+ return requiresRealignment && canRealignStack(MF);
}
-bool X86RegisterInfo::hasReservedCallFrame(MachineFunction &MF) const {
+bool X86RegisterInfo::hasReservedCallFrame(const MachineFunction &MF) const {
return !MF.getFrameInfo()->hasVarSizedObjects();
}
-bool X86RegisterInfo::hasReservedSpillSlot(MachineFunction &MF, unsigned Reg,
- int &FrameIdx) const {
+bool X86RegisterInfo::hasReservedSpillSlot(const MachineFunction &MF,
+ unsigned Reg, int &FrameIdx) const {
if (Reg == FramePtr && hasFP(MF)) {
FrameIdx = MF.getFrameInfo()->getObjectIndexBegin();
return true;
return Offset;
}
+static unsigned getSUBriOpcode(unsigned is64Bit, int64_t Imm) {
+ if (is64Bit) {
+ if (isInt<8>(Imm))
+ return X86::SUB64ri8;
+ return X86::SUB64ri32;
+ } else {
+ if (isInt<8>(Imm))
+ return X86::SUB32ri8;
+ return X86::SUB32ri;
+ }
+}
+
+static unsigned getADDriOpcode(unsigned is64Bit, int64_t Imm) {
+ if (is64Bit) {
+ if (isInt<8>(Imm))
+ return X86::ADD64ri8;
+ return X86::ADD64ri32;
+ } else {
+ if (isInt<8>(Imm))
+ return X86::ADD32ri8;
+ return X86::ADD32ri;
+ }
+}
+
void X86RegisterInfo::
eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const {
MachineInstr *New = 0;
if (Old->getOpcode() == getCallFrameSetupOpcode()) {
New = BuildMI(MF, Old->getDebugLoc(),
- TII.get(Is64Bit ? X86::SUB64ri32 : X86::SUB32ri),
+ TII.get(getSUBriOpcode(Is64Bit, Amount)),
StackPtr)
.addReg(StackPtr)
.addImm(Amount);
Amount -= CalleeAmt;
if (Amount) {
- unsigned Opc = (Amount < 128) ?
- (Is64Bit ? X86::ADD64ri8 : X86::ADD32ri8) :
- (Is64Bit ? X86::ADD64ri32 : X86::ADD32ri);
+ unsigned Opc = getADDriOpcode(Is64Bit, Amount);
New = BuildMI(MF, Old->getDebugLoc(), TII.get(Opc), StackPtr)
.addReg(StackPtr)
.addImm(Amount);
// something off the stack pointer, add it back. We do this until we have
// more advanced stack pointer tracking ability.
if (uint64_t CalleeAmt = I->getOperand(1).getImm()) {
- unsigned Opc = (CalleeAmt < 128) ?
- (Is64Bit ? X86::SUB64ri8 : X86::SUB32ri8) :
- (Is64Bit ? X86::SUB64ri32 : X86::SUB32ri);
+ unsigned Opc = getSUBriOpcode(Is64Bit, CalleeAmt);
MachineInstr *Old = I;
MachineInstr *New =
BuildMI(MF, Old->getDebugLoc(), TII.get(Opc),
// }
// [EBP]
MFI->CreateFixedObject(-TailCallReturnAddrDelta,
- (-1U*SlotSize)+TailCallReturnAddrDelta,
- true, false);
+ (-1U*SlotSize)+TailCallReturnAddrDelta, true);
}
if (hasFP(MF)) {
-(int)SlotSize +
TFI.getOffsetOfLocalArea() +
TailCallReturnAddrDelta,
- true, false);
+ true);
assert(FrameIdx == MFI->getObjectIndexBegin() &&
"Slot for EBP register must be last in order to be found!");
FrameIdx = 0;
const TargetInstrInfo &TII) {
bool isSub = NumBytes < 0;
uint64_t Offset = isSub ? -NumBytes : NumBytes;
- unsigned Opc = isSub
- ? ((Offset < 128) ?
- (Is64Bit ? X86::SUB64ri8 : X86::SUB32ri8) :
- (Is64Bit ? X86::SUB64ri32 : X86::SUB32ri))
- : ((Offset < 128) ?
- (Is64Bit ? X86::ADD64ri8 : X86::ADD32ri8) :
- (Is64Bit ? X86::ADD64ri32 : X86::ADD32ri));
+ unsigned Opc = isSub ?
+ getSUBriOpcode(Is64Bit, Offset) :
+ getADDriOpcode(Is64Bit, Offset);
uint64_t Chunk = (1LL << 31) - 1;
DebugLoc DL = MBB.findDebugLoc(MBBI);
if (Is64Bit && !Fn->hasFnAttr(Attribute::NoRedZone) &&
!needsStackRealignment(MF) &&
!MFI->hasVarSizedObjects() && // No dynamic alloca.
- !MFI->hasCalls() && // No calls.
+ !MFI->adjustsStack() && // No calls.
!Subtarget->isTargetWin64()) { // Win64 has no Red Zone
uint64_t MinSize = X86FI->getCalleeSavedFrameSize();
if (HasFP) MinSize += SlotSize;
// size is bigger than the callers.
if (TailCallReturnAddrDelta < 0) {
MachineInstr *MI =
- BuildMI(MBB, MBBI, DL, TII.get(Is64Bit? X86::SUB64ri32 : X86::SUB32ri),
+ BuildMI(MBB, MBBI, DL,
+ TII.get(getSUBriOpcode(Is64Bit, -TailCallReturnAddrDelta)),
StackPtr)
.addReg(StackPtr)
.addImm(-TailCallReturnAddrDelta);
if (needsFrameMoves) {
// Mark the place where EBP/RBP was saved.
MCSymbol *FrameLabel = MMI.getContext().CreateTempSymbol();
- BuildMI(MBB, MBBI, DL, TII.get(X86::DBG_LABEL)).addSym(FrameLabel);
+ BuildMI(MBB, MBBI, DL, TII.get(X86::PROLOG_LABEL)).addSym(FrameLabel);
// Define the current CFA rule to use the provided offset.
if (StackSize) {
if (needsFrameMoves) {
// Mark effective beginning of when frame pointer becomes valid.
MCSymbol *FrameLabel = MMI.getContext().CreateTempSymbol();
- BuildMI(MBB, MBBI, DL, TII.get(X86::DBG_LABEL)).addSym(FrameLabel);
+ BuildMI(MBB, MBBI, DL, TII.get(X86::PROLOG_LABEL)).addSym(FrameLabel);
// Define the current CFA to use the EBP/RBP register.
MachineLocation FPDst(FramePtr);
if (!HasFP && needsFrameMoves) {
// Mark callee-saved push instruction.
MCSymbol *Label = MMI.getContext().CreateTempSymbol();
- BuildMI(MBB, MBBI, DL, TII.get(X86::DBG_LABEL)).addSym(Label);
+ BuildMI(MBB, MBBI, DL, TII.get(X86::PROLOG_LABEL)).addSym(Label);
// Define the current CFA rule to use the provided offset.
unsigned Ptr = StackSize ?
if ((NumBytes || PushedRegs) && needsFrameMoves) {
// Mark end of stack pointer adjustment.
MCSymbol *Label = MMI.getContext().CreateTempSymbol();
- BuildMI(MBB, MBBI, DL, TII.get(X86::DBG_LABEL)).addSym(Label);
+ BuildMI(MBB, MBBI, DL, TII.get(X86::PROLOG_LABEL)).addSym(Label);
if (!HasFP && NumBytes) {
// Define the current CFA rule to use the provided offset.
if (CSSize) {
unsigned Opc = Is64Bit ? X86::LEA64r : X86::LEA32r;
MachineInstr *MI =
- addLeaRegOffset(BuildMI(MF, DL, TII.get(Opc), StackPtr),
- FramePtr, false, -CSSize);
+ addRegOffset(BuildMI(MF, DL, TII.get(Opc), StackPtr),
+ FramePtr, false, -CSSize);
MBB.insert(MBBI, MI);
} else {
BuildMI(MBB, MBBI, DL,
for (unsigned i = 0; i != 5; ++i)
MIB.addOperand(MBBI->getOperand(i));
} else if (RetOpcode == X86::TCRETURNri64) {
- BuildMI(MBB, MBBI, DL, TII.get(X86::TAILJMPr64), JumpTarget.getReg());
+ BuildMI(MBB, MBBI, DL, TII.get(X86::TAILJMPr64)).
+ addReg(JumpTarget.getReg(), RegState::Kill);
} else {
- BuildMI(MBB, MBBI, DL, TII.get(X86::TAILJMPr), JumpTarget.getReg());
+ BuildMI(MBB, MBBI, DL, TII.get(X86::TAILJMPr)).
+ addReg(JumpTarget.getReg(), RegState::Kill);
}
MachineInstr *NewMI = prior(MBBI);
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