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Fix undefined behavior (binding a reference to a dereferenced null pointer) if

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SSAUpdater was created and destroyed without being initialized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162137 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Richard Smith 2012-08-17 21:42:44 +00:00
parent 3028d38f6e
commit 1cec7a05ee
1 changed files with 1 additions and 1 deletions
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lib/Transforms/Utils/SSAUpdater.cpp
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@ -39,7 +39,7 @@ SSAUpdater::SSAUpdater(SmallVectorImpl<PHINode*> *NewPHI)
: AV(0), ProtoType(0), ProtoName(), InsertedPHIs(NewPHI) {} : AV(0), ProtoType(0), ProtoName(), InsertedPHIs(NewPHI) {}
SSAUpdater::~SSAUpdater() { SSAUpdater::~SSAUpdater() {
delete &getAvailableVals(AV); delete static_cast<AvailableValsTy*>(AV);
} }
/// Initialize - Reset this object to get ready for a new set of SSA /// Initialize - Reset this object to get ready for a new set of SSA