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- Tell PEI that PPC will handle stack frame rounding itself.

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- Do not round up to max. alignment of stack object if it is > stack alignment.
  It will have to be handled with dynamic aligning code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33505 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2007-01-25 22:25:04 +00:00
parent 02a2029141
commit 99403b6964
2 changed files with 7 additions and 7 deletions
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9
lib/Target/PowerPC/PPCRegisterInfo.cpp
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@ -451,9 +451,6 @@ void PPCRegisterInfo::lowerDynamicAlloc(MachineBasicBlock::iterator II) const {
// Determine the maximum call stack size. maxCallFrameSize may be
// less than the minimum.
unsigned maxCallFrameSize = MFI->getMaxCallFrameSize();
unsigned getMinCallFrameSize =
PPCFrameInfo::getMinCallFrameSize(LP64);
maxCallFrameSize = std::max(maxCallFrameSize, getMinCallFrameSize);
// Get the total frame size.
unsigned FrameSize = MFI->getStackSize();
@ -712,11 +709,9 @@ void PPCRegisterInfo::determineFrameLayout(MachineFunction &MF) const {
// Get the alignments provided by the target, and the maximum alignment
// (if any) of the fixed frame objects.
unsigned TargetAlign = MF.getTarget().getFrameInfo()->getStackAlignment();
unsigned MaxAlign = MFI->getMaxAlignment();
unsigned Align = std::max(TargetAlign, MaxAlign);
assert(isPowerOf2_32(Align) && "Alignment is not power of 2");
unsigned AlignMask = Align - 1; //
unsigned TargetAlign = MF.getTarget().getFrameInfo()->getStackAlignment();
unsigned AlignMask = TargetAlign - 1; //
// 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

5
lib/Target/PowerPC/PPCRegisterInfo.h
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@ -58,6 +58,11 @@ public:
const TargetRegisterClass* const* getCalleeSavedRegClasses() const;
/// targetHandlesStackFrameRounding - Returns true if the target is
/// responsible for rounding up the stack frame (probably at emitPrologue
/// time).
bool targetHandlesStackFrameRounding() const { return true; }
bool hasFP(const MachineFunction &MF) const;
void eliminateCallFramePseudoInstr(MachineFunction &MF,