cache result of operator*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108145 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/IPConstantPropagation.cpp b/lib/Transforms/IPO/IPConstantPropagation.cpp
index df2456f..e4db235 100644
--- a/lib/Transforms/IPO/IPConstantPropagation.cpp
+++ b/lib/Transforms/IPO/IPConstantPropagation.cpp
@@ -85,15 +85,16 @@
unsigned NumNonconstant = 0;
for (Value::use_iterator UI = F.use_begin(), E = F.use_end(); UI != E; ++UI) {
+ User *U = *UI;
// Ignore blockaddress uses.
- if (isa<BlockAddress>(*UI)) continue;
+ if (isa<BlockAddress>(U)) continue;
// Used by a non-instruction, or not the callee of a function, do not
// transform.
- if (!isa<CallInst>(*UI) && !isa<InvokeInst>(*UI))
+ if (!isa<CallInst>(U) && !isa<InvokeInst>(U))
return false;
- CallSite CS = CallSite::get(cast<Instruction>(*UI));
+ CallSite CS = CallSite::get(cast<Instruction>(U));
if (!CS.isCallee(UI))
return false;