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| author | Chris Lattner <sabre@nondot.org> | 2011-01-03 21:03:33 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2011-01-03 21:03:33 +0000 |
| commit | 895ace08e01578b5490ed9d064df6d89acf5420a (patch) | |
| tree | 052c0b4752fedd4fe7d243545d679bb55d834760 /lib/Analysis/BasicAliasAnalysis.cpp | |
| parent | 135bf42187df2d1f50622a7901949c43d2392fc3 (diff) | |
fix rdar://8813415 - a miscompilation of 164.gzip that loop-idiom
exposed. It turns out to be a latent bug in basicaa, scary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122772 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/BasicAliasAnalysis.cpp')
| -rw-r--r-- | lib/Analysis/BasicAliasAnalysis.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp index 1a526fc930..8e0637a49b 100644 --- a/lib/Analysis/BasicAliasAnalysis.cpp +++ b/lib/Analysis/BasicAliasAnalysis.cpp @@ -103,6 +103,8 @@ static bool isObjectSmallerThan(const Value *V, uint64_t Size, const TargetData &TD) { const Type *AccessTy; if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V)) { + if (!GV->hasDefinitiveInitializer()) + return false; AccessTy = GV->getType()->getElementType(); } else if (const AllocaInst *AI = dyn_cast<AllocaInst>(V)) { if (!AI->isArrayAllocation()) |