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Fixed stack frame addressing bug

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llvm-svn: 41160
This commit is contained in:
Bruno Cardoso Lopes 2007-08-18 02:19:09 +00:00
parent 15cbbbb56f
commit 3bc582fa67
1 changed files with 8 additions and 8 deletions
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16
lib/Target/Mips/MipsRegisterInfo.cpp
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@ -271,15 +271,15 @@ emitPrologue(MachineFunction &MF) const
MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>(); MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>();
MachineBasicBlock::iterator MBBI = MBB.begin(); MachineBasicBlock::iterator MBBI = MBB.begin();
// Get the number of bytes to allocate from the FrameInfo // Get the number of bytes to allocate from the FrameInfo.
int NumBytes = (int) MFI->getStackSize(); int NumBytes = (int) MFI->getStackSize();
#ifndef NDEBUG #ifndef NDEBUG
DOUT << "\n<--- EMIT PROLOGUE --->"; DOUT << "\n<--- EMIT PROLOGUE --->\n";
DOUT << "Stack size :" << NumBytes << "\n"; DOUT << "Stack size :" << NumBytes << "\n";
#endif #endif
// Do we need to allocate space on the stack? // Don't need to allocate space on the stack.
if (NumBytes == 0) return; if (NumBytes == 0) return;
int FPOffset, RAOffset; int FPOffset, RAOffset;
@ -289,13 +289,13 @@ emitPrologue(MachineFunction &MF) const
// using FP, the last stack slot becomes empty // using FP, the last stack slot becomes empty
// and RA is saved before it. // and RA is saved before it.
if ((hasFP(MF)) && (MFI->hasCalls())) { if ((hasFP(MF)) && (MFI->hasCalls())) {
FPOffset = NumBytes; FPOffset = NumBytes+4;
RAOffset = (NumBytes+4); RAOffset = (NumBytes+8);
} else if ((!hasFP(MF)) && (MFI->hasCalls())) { } else if ((!hasFP(MF)) && (MFI->hasCalls())) {
FPOffset = 0; FPOffset = 0;
RAOffset = NumBytes; RAOffset = NumBytes+4;
} else if ((hasFP(MF)) && (!MFI->hasCalls())) { } else if ((hasFP(MF)) && (!MFI->hasCalls())) {
FPOffset = NumBytes; FPOffset = NumBytes+4;
RAOffset = 0; RAOffset = 0;
} }
@ -310,7 +310,7 @@ emitPrologue(MachineFunction &MF) const
#endif #endif
// Align stack. // Align stack.
NumBytes += 8; NumBytes += 12;
unsigned Align = MF.getTarget().getFrameInfo()->getStackAlignment(); unsigned Align = MF.getTarget().getFrameInfo()->getStackAlignment();
NumBytes = ((NumBytes+Align-1)/Align*Align); NumBytes = ((NumBytes+Align-1)/Align*Align);