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Tracing or debug-printing a newly formed instruction should not crash.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140874 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick 2011-09-30 19:50:40 +00:00
parent 18801ecd48
commit 62e0590c0e
1 changed files with 2 additions and 1 deletions
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3
lib/VMCore/AsmWriter.cpp
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@ -386,7 +386,8 @@ static SlotTracker *createSlotTracker(const Value *V) {
return new SlotTracker(FA->getParent());
if (const Instruction *I = dyn_cast<Instruction>(V))
return new SlotTracker(I->getParent()->getParent());
if (I->getParent())
return new SlotTracker(I->getParent()->getParent());
if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
return new SlotTracker(BB->getParent());