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| author | Chris Lattner <sabre@nondot.org> | 2004-11-28 20:30:15 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2004-11-28 20:30:15 +0000 |
| commit | eaf8f9c667b15cf09b4608558cc24675e92ad2cd (patch) | |
| tree | bde54caffa0fdd66f6bdeab0d94f9bb74c7d6cb8 /lib/Analysis/BasicAliasAnalysis.cpp | |
| parent | f4a0e5093cffb715b1660610192572d58ef389d5 (diff) | |
| download | llvm-eaf8f9c667b15cf09b4608558cc24675e92ad2cd.tar.gz llvm-eaf8f9c667b15cf09b4608558cc24675e92ad2cd.tar.bz2 llvm-eaf8f9c667b15cf09b4608558cc24675e92ad2cd.tar.xz | |
Fix DeadStoreElimination/2004-11-28-LiveStoreDeleted.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18308 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/BasicAliasAnalysis.cpp')
| -rw-r--r-- | lib/Analysis/BasicAliasAnalysis.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp index b195b25cb5..17539bd531 100644 --- a/lib/Analysis/BasicAliasAnalysis.cpp +++ b/lib/Analysis/BasicAliasAnalysis.cpp @@ -297,7 +297,7 @@ BasicAliasAnalysis::alias(const Value *V1, unsigned V1Size, // undefined to load or store bytes before or after an object). const Type *ElTy = cast<PointerType>(O1->getType())->getElementType(); unsigned GlobalSize = getTargetData().getTypeSize(ElTy); - if (GlobalSize < V2Size) + if (GlobalSize < V2Size && V2Size != ~0U) return NoAlias; } } @@ -313,7 +313,7 @@ BasicAliasAnalysis::alias(const Value *V1, unsigned V1Size, // undefined to load or store bytes before or after an object). const Type *ElTy = cast<PointerType>(O2->getType())->getElementType(); unsigned GlobalSize = getTargetData().getTypeSize(ElTy); - if (GlobalSize < V1Size) + if (GlobalSize < V1Size && V1Size != ~0U) return NoAlias; } } @@ -496,7 +496,7 @@ CheckGEPInstructions(const Type* BasePtr1Ty, std::vector<Value*> &GEP1Ops, // A[i][0] != A[j][1] iff (&A[0][1]-&A[0][0] >= std::max(G1S, G2S)) // unsigned SizeMax = std::max(G1S, G2S); - if (SizeMax == ~0U) return MayAlias; // Avoid frivolous work... + if (SizeMax == ~0U) return MayAlias; // Avoid frivolous work. // Scan for the first operand that is constant and unequal in the // two getelementptrs... |