diff options
Diffstat (limited to 'lib/Analysis/LoopDependenceAnalysis.cpp')
| -rw-r--r-- | lib/Analysis/LoopDependenceAnalysis.cpp | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/lib/Analysis/LoopDependenceAnalysis.cpp b/lib/Analysis/LoopDependenceAnalysis.cpp index 779508dce4..020a8c77cc 100644 --- a/lib/Analysis/LoopDependenceAnalysis.cpp +++ b/lib/Analysis/LoopDependenceAnalysis.cpp @@ -36,8 +36,9 @@ char LoopDependenceAnalysis::ID = 0; // Utility Functions //===----------------------------------------------------------------------===// -static inline bool IsMemRefInstr(const Value *I) { - return isa<LoadInst>(I) || isa<StoreInst>(I); +static inline bool IsMemRefInstr(const Value *V) { + const Instruction *I = dyn_cast<const Instruction>(V); + return I && (I->mayReadFromMemory() || I->mayWriteToMemory()); } static void GetMemRefInstrs( @@ -56,8 +57,10 @@ static void GetMemRefInstrs( bool LoopDependenceAnalysis::isDependencePair(const Value *x, const Value *y) const { - return IsMemRefInstr(x) && IsMemRefInstr(y) - && (isa<StoreInst>(x) || isa<StoreInst>(y)); + return IsMemRefInstr(x) && + IsMemRefInstr(y) && + (cast<const Instruction>(x)->mayWriteToMemory() || + cast<const Instruction>(y)->mayWriteToMemory()); } bool LoopDependenceAnalysis::depends(Value *src, Value *dst) { |