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Changed disabled code into a flag.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135924 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2011-07-25 18:04:49 +00:00
parent 091a864f06
commit c57e7dbfaf
1 changed files with 7 additions and 1 deletions
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8
lib/Target/X86/X86FrameLowering.cpp
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@ -34,6 +34,12 @@ using namespace llvm;
// FIXME: completely move here.
extern cl::opt<bool> ForceStackAlign;
// FIXME: Remove once linker support is available.
static cl::opt<bool>
GenerateCompactUnwind("gen-compact-unwind",
cl::desc("Generate compact unwind encoding"),
cl::Hidden);
bool X86FrameLowering::hasReservedCallFrame(const MachineFunction &MF) const {
return !MF.getFrameInfo()->hasVarSizedObjects();
}
@ -897,7 +903,7 @@ void X86FrameLowering::emitPrologue(MachineFunction &MF) const {
}
// Darwin 10.7 and greater has support for compact unwind encoding.
if (false && // FIXME: Enable once linker support is available.
if (GenerateCompactUnwind &&
STI.isTargetDarwin() && !STI.getTargetTriple().isMacOSXVersionLT(10, 6))
MMI.setCompactUnwindEncoding(getCompactUnwindEncoding(MF));
}