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If we've pushed registers onto the stack, but aren't adjusting the stack pointer

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(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
This commit is contained in:
Bill Wendling 2009-09-03 22:19:22 +00:00
parent e56a94ef91
commit eb3a766529
1 changed files with 2 additions and 2 deletions
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4
lib/Target/X86/X86RegisterInfo.cpp
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@ -1086,12 +1086,12 @@ void X86RegisterInfo::emitPrologue(MachineFunction &MF) const {
emitSPUpdate(MBB, MBBI, StackPtr, -(int64_t)NumBytes, Is64Bit, TII); emitSPUpdate(MBB, MBBI, StackPtr, -(int64_t)NumBytes, Is64Bit, TII);
} }
if (NumBytes && needsFrameMoves) { if ((NumBytes || PushedRegs) && needsFrameMoves) {
// Mark end of stack pointer adjustment. // Mark end of stack pointer adjustment.
unsigned LabelId = MMI->NextLabelID(); unsigned LabelId = MMI->NextLabelID();
BuildMI(MBB, MBBI, DL, TII.get(X86::DBG_LABEL)).addImm(LabelId); 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. // Define the current CFA rule to use the provided offset.
if (StackSize) { if (StackSize) {
MachineLocation SPDst(MachineLocation::VirtualFP); MachineLocation SPDst(MachineLocation::VirtualFP);