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-rw-r--r--lib/Transforms/Scalar/DeadStoreElimination.cpp7
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/Transforms/Scalar/DeadStoreElimination.cpp b/lib/Transforms/Scalar/DeadStoreElimination.cpp
index f55d8b2..c10d236 100644
--- a/lib/Transforms/Scalar/DeadStoreElimination.cpp
+++ b/lib/Transforms/Scalar/DeadStoreElimination.cpp
@@ -89,7 +89,7 @@ bool DSE::runOnBasicBlock(BasicBlock &BB) {
Instruction *Inst = BBI++;
// If we find a store or a free, get its memory dependence.
- if (!isa<StoreInst>(Inst) && !isa<FreeInst>(Inst) && !isFreeCall(Inst))
+ if (!isa<StoreInst>(Inst) && !isFreeCall(Inst))
continue;
// Don't molest volatile stores or do queries that will return "clobber".
@@ -104,7 +104,7 @@ bool DSE::runOnBasicBlock(BasicBlock &BB) {
if (InstDep.isNonLocal()) continue;
// Handle frees whose dependencies are non-trivial.
- if (isa<FreeInst>(Inst) || isFreeCall(Inst)) {
+ if (isFreeCall(Inst)) {
MadeChange |= handleFreeWithNonTrivialDependency(Inst, InstDep);
continue;
}
@@ -176,8 +176,7 @@ bool DSE::handleFreeWithNonTrivialDependency(Instruction *F, MemDepResult Dep) {
Value *DepPointer = Dependency->getPointerOperand()->getUnderlyingObject();
// Check for aliasing.
- Value* FreeVal = isa<FreeInst>(F) ? F->getOperand(0) : F->getOperand(1);
- if (AA.alias(FreeVal, 1, DepPointer, 1) !=
+ if (AA.alias(F->getOperand(1), 1, DepPointer, 1) !=
AliasAnalysis::MustAlias)
return false;