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Frame index can be negative.

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llvm-svn: 46655
This commit is contained in:
Evan Cheng 2008-02-02 00:17:00 +00:00
parent 563e0a3ea3
commit 9ff6b89bd9
4 changed files with 4 additions and 4 deletions
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2
include/llvm/Target/MRegisterInfo.h
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@ -588,7 +588,7 @@ public:
/// getFrameIndexOffset - Returns the displacement from the frame register to
/// the stack frame of the specified index.
virtual int getFrameIndexOffset(MachineFunction &MF, unsigned FI) const;
virtual int getFrameIndexOffset(MachineFunction &MF, int FI) const;
/// getRARegister - This method should return the register where the return
/// address can be found.

2
lib/Target/MRegisterInfo.cpp
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@ -74,7 +74,7 @@ BitVector MRegisterInfo::getAllocatableSet(MachineFunction &MF,
/// getFrameIndexOffset - Returns the displacement from the frame register to
/// the stack frame of the specified index. This is the default implementation
/// which is likely incorrect for the target.
int MRegisterInfo::getFrameIndexOffset(MachineFunction &MF, unsigned FI) const {
int MRegisterInfo::getFrameIndexOffset(MachineFunction &MF, int FI) const {
const TargetFrameInfo &TFI = *MF.getTarget().getFrameInfo();
MachineFrameInfo *MFI = MF.getFrameInfo();
return MFI->getObjectOffset(FI) + MFI->getStackSize() -

2
lib/Target/X86/X86RegisterInfo.cpp
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@ -826,7 +826,7 @@ unsigned X86RegisterInfo::getFrameRegister(MachineFunction &MF) const {
}
int
X86RegisterInfo::getFrameIndexOffset(MachineFunction &MF, unsigned FI) const {
X86RegisterInfo::getFrameIndexOffset(MachineFunction &MF, int FI) const {
int Offset = MF.getFrameInfo()->getObjectOffset(FI) + SlotSize;
if (!hasFP(MF))
return Offset + MF.getFrameInfo()->getStackSize();

2
lib/Target/X86/X86RegisterInfo.h
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@ -122,7 +122,7 @@ public:
// Debug information queries.
unsigned getRARegister() const;
unsigned getFrameRegister(MachineFunction &MF) const;
int getFrameIndexOffset(MachineFunction &MF, unsigned FI) const;
int getFrameIndexOffset(MachineFunction &MF, int FI) const;
void getInitialFrameState(std::vector<MachineMove> &Moves) const;
// Exception handling queries.