diff options
Diffstat (limited to 'llvm/lib/Analysis/MemoryDependenceAnalysis.cpp')
| -rw-r--r-- | llvm/lib/Analysis/MemoryDependenceAnalysis.cpp | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp b/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp index 06dcf94676c..6918360536a 100644 --- a/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp +++ b/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp @@ -685,13 +685,13 @@ MemDepResult MemoryDependenceAnalysis::getSimplePointerDependencyFrom( return MemDepResult::getDef(Inst); if (isInvariantLoad) continue; - // Be conservative if the accessed pointer may alias the allocation. - if (AA->alias(Inst, AccessPtr) != NoAlias) - return MemDepResult::getClobber(Inst); - // If the allocation is not aliased and does not read memory (like - // strdup), it is safe to ignore. - if (isa<AllocaInst>(Inst) || - isMallocLikeFn(Inst, TLI) || isCallocLikeFn(Inst, TLI)) + // Be conservative if the accessed pointer may alias the allocation - + // fallback to the generic handling below. + if ((AA->alias(Inst, AccessPtr) == NoAlias) && + // If the allocation is not aliased and does not read memory (like + // strdup), it is safe to ignore. + (isa<AllocaInst>(Inst) || isMallocLikeFn(Inst, TLI) || + isCallocLikeFn(Inst, TLI))) continue; } |

