Subtarget = &TM.getSubtarget<X86Subtarget>();
X86ScalarSSEf64 = Subtarget->hasSSE2();
X86ScalarSSEf32 = Subtarget->hasSSE1();
- X86StackPtr = Subtarget->is64Bit() ? X86::RSP : X86::ESP;
RegInfo = TM.getRegisterInfo();
TD = getDataLayout();
setSchedulingPreference(Sched::ILP);
else
setSchedulingPreference(Sched::RegPressure);
- setStackPointerRegisterToSaveRestore(X86StackPtr);
+ setStackPointerRegisterToSaveRestore(RegInfo->getStackRegister());
// Bypass i32 with i8 on Atom when compiling with O2
if (Subtarget->hasSlowDivide() && TM.getOptLevel() >= CodeGenOpt::Default)
} else if (!IsSibcall && (!isTailCall || isByVal)) {
assert(VA.isMemLoc());
if (StackPtr.getNode() == 0)
- StackPtr = DAG.getCopyFromReg(Chain, dl, X86StackPtr, getPointerTy());
+ StackPtr = DAG.getCopyFromReg(Chain, dl, RegInfo->getStackRegister(),
+ getPointerTy());
MemOpChains.push_back(LowerMemOpCallTo(Chain, StackPtr, Arg,
dl, DAG, VA, Flags));
}
// Copy relative to framepointer.
SDValue Source = DAG.getIntPtrConstant(VA.getLocMemOffset());
if (StackPtr.getNode() == 0)
- StackPtr = DAG.getCopyFromReg(Chain, dl, X86StackPtr,
+ StackPtr = DAG.getCopyFromReg(Chain, dl,
+ RegInfo->getStackRegister(),
getPointerTy());
Source = DAG.getNode(ISD::ADD, dl, getPointerTy(), StackPtr, Source);
Chain = DAG.getNode(X86ISD::WIN_ALLOCA, dl, NodeTys, Chain, Flag);
Flag = Chain.getValue(1);
- Chain = DAG.getCopyFromReg(Chain, dl, X86StackPtr, SPTy).getValue(1);
+ Chain = DAG.getCopyFromReg(Chain, dl, RegInfo->getStackRegister(),
+ SPTy).getValue(1);
SDValue Ops1[2] = { Chain.getValue(0), Chain };
return DAG.getMergeValues(Ops1, 2, dl);
getPICJumpTableRelocBaseExpr(const MachineFunction *MF,
unsigned JTI, MCContext &Ctx) const;
- /// getStackPtrReg - Return the stack pointer register we are using: either
- /// ESP or RSP.
- unsigned getStackPtrReg() const { return X86StackPtr; }
-
/// getByValTypeAlignment - Return the desired alignment for ByVal aggregate
/// function arguments in the caller parameter area. For X86, aggregates
/// that contains are placed at 16-byte boundaries while the rest are at
const X86RegisterInfo *RegInfo;
const DataLayout *TD;
- /// X86StackPtr - X86 physical register used as stack ptr.
- unsigned X86StackPtr;
-
/// X86ScalarSSEf32, X86ScalarSSEf64 - Select between SSE or x87
/// floating point ops.
/// When SSE is available, use it for f32 operations.