diff options
Diffstat (limited to 'llvm/lib/Analysis')
| -rw-r--r-- | llvm/lib/Analysis/MemoryDependenceAnalysis.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp b/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp index 2fe012d3865..090755960c8 100644 --- a/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp +++ b/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp @@ -154,6 +154,12 @@ static ModRefInfo GetLocation(const Instruction *Inst, MemoryLocation &Loc, return ModRefInfo::Mod; } + if (const MemSetInst *MI = dyn_cast<MemSetInst>(Inst)) { + Loc = MemoryLocation::getForDest(MI); + // Conversatively assume ModRef for volatile memset. + return MI->isVolatile() ? ModRefInfo::ModRef : ModRefInfo::Mod; + } + if (const IntrinsicInst *II = dyn_cast<IntrinsicInst>(Inst)) { switch (II->getIntrinsicID()) { case Intrinsic::lifetime_start: |
