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| author | Bill Wendling <isanbard@gmail.com> | 2009-09-03 22:19:22 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2009-09-03 22:19:22 +0000 |
| commit | c9ca26dded387110e8c7520f52bd635eb483d1ec (patch) | |
| tree | 39970667354c7fdaeed6b02f18df2a4d0822f9c3 | |
| parent | 2f2ab4797b28ede081fda36855a26e8ec1b9357e (diff) | |
| download | external_llvm-c9ca26dded387110e8c7520f52bd635eb483d1ec.zip external_llvm-c9ca26dded387110e8c7520f52bd635eb483d1ec.tar.gz external_llvm-c9ca26dded387110e8c7520f52bd635eb483d1ec.tar.bz2 | |
If we've pushed registers onto the stack, but aren't adjusting the stack pointer
(i.e., there are no local variables and stuff), we still need to output FDE
information for the pushed registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80960 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index 5d1ee17..76d2b97 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -1086,12 +1086,12 @@ void X86RegisterInfo::emitPrologue(MachineFunction &MF) const { emitSPUpdate(MBB, MBBI, StackPtr, -(int64_t)NumBytes, Is64Bit, TII); } - if (NumBytes && needsFrameMoves) { + if ((NumBytes || PushedRegs) && needsFrameMoves) { // Mark end of stack pointer adjustment. unsigned LabelId = MMI->NextLabelID(); BuildMI(MBB, MBBI, DL, TII.get(X86::DBG_LABEL)).addImm(LabelId); - if (!HasFP) { + if (!HasFP && NumBytes) { // Define the current CFA rule to use the provided offset. if (StackSize) { MachineLocation SPDst(MachineLocation::VirtualFP); |