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| author | Bill Wendling <isanbard@gmail.com> | 2009-08-02 22:25:37 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2009-08-02 22:25:37 +0000 |
| commit | aa7c31d83de9b6fdf7ddccfb380e015d5df4ccff (patch) | |
| tree | 8124424b963247ca76bfd88faa4e148761353f54 | |
| parent | b711cf09b31c5498b18293768ae4323ecee304ef (diff) | |
| download | external_llvm-aa7c31d83de9b6fdf7ddccfb380e015d5df4ccff.zip external_llvm-aa7c31d83de9b6fdf7ddccfb380e015d5df4ccff.tar.gz external_llvm-aa7c31d83de9b6fdf7ddccfb380e015d5df4ccff.tar.bz2 | |
The x86 jit doesn't generate a def_cfa_offset unwind instruction after the
pushes in the function prolog if the function doesn't have any stack space,
i.e. for a prolog like:
0x40011870: push %r15
0x40011872: push %r14
0x40011874: push %rbx
Patch by Zoltan!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77919 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index 8c54aeb..3fa5373 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -1059,7 +1059,7 @@ void X86RegisterInfo::emitPrologue(MachineFunction &MF) const { emitSPUpdate(MBB, MBBI, StackPtr, -(int64_t)NumBytes, Is64Bit, TII); } - if (!HasFP && needsFrameMoves && NumBytes) { + if (!HasFP && needsFrameMoves) { // Mark end of stack pointer adjustment. unsigned LabelId = MMI->NextLabelID(); BuildMI(MBB, MBBI, DL, TII.get(X86::DBG_LABEL)).addImm(LabelId); |