diff options
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index 82c15e7caf..f4ada35e5f 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -728,7 +728,8 @@ void X86RegisterInfo::emitPrologue(MachineFunction &MF) const { bool needsFrameMoves = (MMI && MMI->hasDebugInfo()) || !Fn->doesNotThrow() || UnwindTablesMandatory; - DebugLoc DL = MBBI->getDebugLoc(); + DebugLoc DL = (MBBI != MBB.end()) ? MBBI->getDebugLoc() : + DebugLoc::getUnknownLoc(); // Prepare for frame info. unsigned FrameLabelId = 0; |