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authorBill Wendling <isanbard@gmail.com>2009-02-21 01:07:26 +0000
committerBill Wendling <isanbard@gmail.com>2009-02-21 01:07:26 +0000
commit81ebf9a5783ca58b71fc0080ba6068f603103e76 (patch)
tree97e906796ed0edb30fa560bbd24ecf3d70613102 /llvm/lib
parent44c0f2aa88b9d6e32999522d2c4e533fd2ce5fc0 (diff)
downloadbcm5719-llvm-81ebf9a5783ca58b71fc0080ba6068f603103e76.tar.gz
bcm5719-llvm-81ebf9a5783ca58b71fc0080ba6068f603103e76.zip
Make sure we don't dereference the .end() of the container.
llvm-svn: 65211
Diffstat (limited to 'llvm/lib')
-rw-r--r--llvm/lib/Target/X86/X86RegisterInfo.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86RegisterInfo.cpp b/llvm/lib/Target/X86/X86RegisterInfo.cpp
index 82c15e7caf3..f4ada35e5fb 100644
--- a/llvm/lib/Target/X86/X86RegisterInfo.cpp
+++ b/llvm/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;
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