cache result of operator*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107979 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 121dc86..527ae49 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -253,17 +253,18 @@
// at once.
while (!Placeholder->use_empty()) {
Value::use_iterator UI = Placeholder->use_begin();
+ User *U = *UI;
// If the using object isn't uniqued, just update the operands. This
// handles instructions and initializers for global variables.
- if (!isa<Constant>(*UI) || isa<GlobalValue>(*UI)) {
+ if (!isa<Constant>(U) || isa<GlobalValue>(U)) {
UI.getUse().set(RealVal);
continue;
}
// Otherwise, we have a constant that uses the placeholder. Replace that
// constant with a new constant that has *all* placeholder uses updated.
- Constant *UserC = cast<Constant>(*UI);
+ Constant *UserC = cast<Constant>(U);
for (User::op_iterator I = UserC->op_begin(), E = UserC->op_end();
I != E; ++I) {
Value *NewOp;