Reduce double set lookups.
llvm-svn: 230798
diff --git a/llvm/lib/Analysis/LazyValueInfo.cpp b/llvm/lib/Analysis/LazyValueInfo.cpp
index 87c31fd..d4580dc 100644
--- a/llvm/lib/Analysis/LazyValueInfo.cpp
+++ b/llvm/lib/Analysis/LazyValueInfo.cpp
@@ -346,11 +346,10 @@
/// Push BV onto BlockValueStack unless it's already in there.
/// Returns true on success.
bool pushBlockValue(const std::pair<BasicBlock *, Value *> &BV) {
- if (BlockValueSet.count(BV))
+ if (!BlockValueSet.insert(BV).second)
return false; // It's already in the stack.
BlockValueStack.push(BV);
- BlockValueSet.insert(BV);
return true;
}