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Simplify

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50158 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov
2008-04-23 18:18:36 +00:00
parent 45709ae09b
commit 82751e3eda
1 changed files with 16 additions and 26 deletions
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42
lib/Target/X86/X86RegisterInfo.cpp
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@@ -278,6 +278,20 @@ bool X86RegisterInfo::hasReservedCallFrame(MachineFunction &MF) const {
return !MF.getFrameInfo()->hasVarSizedObjects(); return !MF.getFrameInfo()->hasVarSizedObjects();
} }
int
X86RegisterInfo::getFrameIndexOffset(MachineFunction &MF, int FI) const {
int Offset = MF.getFrameInfo()->getObjectOffset(FI) + SlotSize;
if (!hasFP(MF))
return Offset + MF.getFrameInfo()->getStackSize();
Offset += SlotSize; // Skip the saved EBP
// Skip the RETADDR move area
X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
int TailCallReturnAddrDelta = X86FI->getTCReturnAddrDelta();
if (TailCallReturnAddrDelta < 0) Offset -= TailCallReturnAddrDelta;
return Offset;
}
void X86RegisterInfo:: void X86RegisterInfo::
eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const { MachineBasicBlock::iterator I) const {
@@ -349,18 +363,8 @@ void X86RegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
MI.getOperand(i).ChangeToRegister(hasFP(MF) ? FramePtr : StackPtr, false); MI.getOperand(i).ChangeToRegister(hasFP(MF) ? FramePtr : StackPtr, false);
// Now add the frame object offset to the offset from EBP. // Now add the frame object offset to the offset from EBP.
int64_t Offset = MF.getFrameInfo()->getObjectOffset(FrameIndex) + int64_t Offset = getFrameIndexOffset(MF, FrameIndex) +
MI.getOperand(i+3).getImm()+SlotSize; MI.getOperand(i+3).getImm();
if (!hasFP(MF))
Offset += MF.getFrameInfo()->getStackSize();
else {
Offset += SlotSize; // Skip the saved EBP
// Skip the RETADDR move area
X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
int TailCallReturnAddrDelta = X86FI->getTCReturnAddrDelta();
if (TailCallReturnAddrDelta < 0) Offset -= TailCallReturnAddrDelta;
}
MI.getOperand(i+3).ChangeToImmediate(Offset); MI.getOperand(i+3).ChangeToImmediate(Offset);
} }
@@ -842,20 +846,6 @@ unsigned X86RegisterInfo::getFrameRegister(MachineFunction &MF) const {
return hasFP(MF) ? FramePtr : StackPtr; return hasFP(MF) ? FramePtr : StackPtr;
} }
int
X86RegisterInfo::getFrameIndexOffset(MachineFunction &MF, int FI) const {
int Offset = MF.getFrameInfo()->getObjectOffset(FI) + SlotSize;
if (!hasFP(MF))
return Offset + MF.getFrameInfo()->getStackSize();
Offset += SlotSize; // Skip the saved EBP
// Skip the RETADDR move area
X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
int TailCallReturnAddrDelta = X86FI->getTCReturnAddrDelta();
if (TailCallReturnAddrDelta < 0) Offset -= TailCallReturnAddrDelta;
return Offset;
}
void X86RegisterInfo::getInitialFrameState(std::vector<MachineMove> &Moves) void X86RegisterInfo::getInitialFrameState(std::vector<MachineMove> &Moves)
const { const {
// Calculate amount of bytes used for return address storing // Calculate amount of bytes used for return address storing