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| author | Bill Wendling <isanbard@gmail.com> | 2011-07-25 18:04:49 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2011-07-25 18:04:49 +0000 |
| commit | c57e7dbfaff2e5cfe668da9f68868826368407a1 (patch) | |
| tree | 084d6c449b7d37416fb7e36d2002f08d5418b7b4 | |
| parent | 091a864f06357f17a82645a559eadd2c55248889 (diff) | |
| download | external_llvm-c57e7dbfaff2e5cfe668da9f68868826368407a1.zip external_llvm-c57e7dbfaff2e5cfe668da9f68868826368407a1.tar.gz external_llvm-c57e7dbfaff2e5cfe668da9f68868826368407a1.tar.bz2 | |
Changed disabled code into a flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135924 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86FrameLowering.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/Target/X86/X86FrameLowering.cpp b/lib/Target/X86/X86FrameLowering.cpp index 189c80d..c64fbdb 100644 --- a/lib/Target/X86/X86FrameLowering.cpp +++ b/lib/Target/X86/X86FrameLowering.cpp @@ -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)); } |