diff options
| -rw-r--r-- | lib/Analysis/Loads.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Analysis/Loads.cpp b/lib/Analysis/Loads.cpp index 18f3a3465b..0e6bcbfae4 100644 --- a/lib/Analysis/Loads.cpp +++ b/lib/Analysis/Loads.cpp @@ -188,12 +188,16 @@ Value *llvm::FindAvailableLoadedValue(Value *Ptr, BasicBlock *ScanBB, --ScanFrom; // If this is a load of Ptr, the loaded value is available. + // (This is true even if the load is volatile or atomic, although + // those cases are unlikely.) if (LoadInst *LI = dyn_cast<LoadInst>(Inst)) if (AreEquivalentAddressValues(LI->getOperand(0), Ptr)) return LI; if (StoreInst *SI = dyn_cast<StoreInst>(Inst)) { // If this is a store through Ptr, the value is available! + // (This is true even if the store is volatile or atomic, although + // those cases are unlikely.) if (AreEquivalentAddressValues(SI->getOperand(1), Ptr)) return SI->getOperand(0); |