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Respect the DisableRedZone flag on PowerPC. 

llvm-svn: 63119
This commit is contained in:
Dan Gohman 2009-01-27 19:19:28 +00:00
parent f77f0ce21a
commit 13f18e853f
1 changed files with 2 additions and 1 deletions
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3
llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp
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@ -893,7 +893,8 @@ void PPCRegisterInfo::determineFrameLayout(MachineFunction &MF) const {
// If we are a leaf function, and use up to 224 bytes of stack space,
// don't have a frame pointer, calls, or dynamic alloca then we do not need
// to adjust the stack pointer (we fit in the Red Zone).
if (FrameSize <= 224 && // Fits in red zone.
if (!DisableRedZone &&
FrameSize <= 224 && // Fits in red zone.
!MFI->hasVarSizedObjects() && // No dynamic alloca.
!MFI->hasCalls() && // No calls.
(!ALIGN_STACK || MaxAlign <= TargetAlign)) { // No special alignment.