cache result of operator*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107976 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ScalarEvolutionExpander.cpp b/lib/Analysis/ScalarEvolutionExpander.cpp
index 99b4a40..67b3f50 100644
--- a/lib/Analysis/ScalarEvolutionExpander.cpp
+++ b/lib/Analysis/ScalarEvolutionExpander.cpp
@@ -1118,17 +1118,19 @@
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