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authorNick Lewycky <nicholas@mxc.ca>2011-05-29 19:33:36 +0000
committerNick Lewycky <nicholas@mxc.ca>2011-05-29 19:33:36 +0000
commitc66d455e506468328e341e62b5d58b0d48b8884d (patch)
tree2a9d2f51c450b0805e385a7c68ecc1a7662aa955 /llvm/lib/Transforms
parent18d85eedda8b5a2f77c58221082ea6f5ee31894c (diff)
downloadbcm5719-llvm-c66d455e506468328e341e62b5d58b0d48b8884d.tar.gz
bcm5719-llvm-c66d455e506468328e341e62b5d58b0d48b8884d.zip
Don't crash owhen ComputeLoadResult can't compute the result of the load.
llvm-svn: 132290
Diffstat (limited to 'llvm/lib/Transforms')
-rw-r--r--llvm/lib/Transforms/IPO/GlobalOpt.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/IPO/GlobalOpt.cpp b/llvm/lib/Transforms/IPO/GlobalOpt.cpp
index 371500bc786..cdf7b76dd08 100644
--- a/llvm/lib/Transforms/IPO/GlobalOpt.cpp
+++ b/llvm/lib/Transforms/IPO/GlobalOpt.cpp
@@ -2444,7 +2444,7 @@ static bool EvaluateFunction(Function *F, Constant *&RetVal,
Constant *Val = getVal(Values, MSI->getValue());
Constant *DestVal = ComputeLoadResult(getVal(Values, Ptr),
MutatedMemory);
- if (Val->isNullValue() && DestVal->isNullValue()) {
+ if (Val->isNullValue() && DestVal && DestVal->isNullValue()) {
// This memset is a no-op.
++CurInst;
continue;
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