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| author | Bill Wendling <isanbard@gmail.com> | 2009-02-21 01:07:26 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2009-02-21 01:07:26 +0000 |
| commit | 8aa374b6290210ad86499e129e67dea066d94433 (patch) | |
| tree | 8cad9780ff7d1112ca5c1e8902b03a54f6bb25c5 /lib/Target/X86/X86RegisterInfo.cpp | |
| parent | 36d3e326dfcc3f2ff002e5e76178effb785d006d (diff) | |
| download | external_llvm-8aa374b6290210ad86499e129e67dea066d94433.zip external_llvm-8aa374b6290210ad86499e129e67dea066d94433.tar.gz external_llvm-8aa374b6290210ad86499e129e67dea066d94433.tar.bz2 | |
Make sure we don't dereference the .end() of the container.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65211 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86RegisterInfo.cpp')
| -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 82c15e7..f4ada35 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; |