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| author | Dan Gohman <gohman@apple.com> | 2010-12-13 22:47:57 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-12-13 22:47:57 +0000 |
| commit | ba5d0abe39611cd5d762d8d385cc1e93aa700817 (patch) | |
| tree | a3dd7cdc01d5efaf74326b270b095895aa2d8042 | |
| parent | 1782783095b51000831c7d2fd1d763355b5adc0f (diff) | |
| download | bcm5719-llvm-ba5d0abe39611cd5d762d8d385cc1e93aa700817.tar.gz bcm5719-llvm-ba5d0abe39611cd5d762d8d385cc1e93aa700817.zip | |
Update memdep to handle PartialAlias as MayAlias.
llvm-svn: 121723
| -rw-r--r-- | llvm/lib/Analysis/MemoryDependenceAnalysis.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp b/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp index c833184b6fd..1cd7dec1988 100644 --- a/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp +++ b/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp @@ -291,7 +291,7 @@ getPointerDependencyFrom(const AliasAnalysis::Location &MemLoc, bool isLoad, continue; // May-alias loads don't depend on each other without a dependence. - if (isLoad && R == AliasAnalysis::MayAlias) + if (isLoad && R != AliasAnalysis::MustAlias) continue; // Stores don't alias loads from read-only memory. @@ -323,9 +323,9 @@ getPointerDependencyFrom(const AliasAnalysis::Location &MemLoc, bool isLoad, if (R == AliasAnalysis::NoAlias) continue; - if (R == AliasAnalysis::MayAlias) - return MemDepResult::getClobber(Inst); - return MemDepResult::getDef(Inst); + if (R == AliasAnalysis::MustAlias) + return MemDepResult::getDef(Inst); + return MemDepResult::getClobber(Inst); } // If this is an allocation, and if we know that the accessed pointer is to |
