cache result of operator*

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107976 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 5 deletions

diff --git a/lib/Analysis/ScalarEvolutionExpander.cpp b/lib/Analysis/ScalarEvolutionExpander.cpp
index 99b4a406da..67b3f50e14 100644
--- a/lib/Analysis/ScalarEvolutionExpander.cpp
+++ b/lib/Analysis/ScalarEvolutionExpander.cpp
@@ -1118,17 +1118,19 @@ Value *SCEVExpander::visitAddRecExpr(const SCEVAddRecExpr *S) {
 
     Constant *One = ConstantInt::get(Ty, 1);
     for (pred_iterator HPI = pred_begin(Header), HPE = pred_end(Header);
-         HPI != HPE; ++HPI)
-      if (L->contains(*HPI)) {
+         HPI != HPE; ++HPI) {
+      BasicBlock *HP = *HPI;
+      if (L->contains(HP)) {
         // Insert a unit add instruction right before the terminator
         // corresponding to the back-edge.
         Instruction *Add = BinaryOperator::CreateAdd(PN, One, "indvar.next",
-                                                     (*HPI)->getTerminator());
+                                                           HP->getTerminator());
         rememberInstruction(Add);
-        PN->addIncoming(Add, *HPI);
+        PN->addIncoming(Add, HP);
       } else {
-        PN->addIncoming(Constant::getNullValue(Ty), *HPI);
+        PN->addIncoming(Constant::getNullValue(Ty), HP);
       }
+    }
   }
 
   // {0,+,F} --> {0,+,1} * F