From 67894a3d02caa0b4628a942bef923907bbd97c47 Mon Sep 17 00:00:00 2001
From: Gabor Greif <ggreif@gmail.com>
Date: Wed, 14 Apr 2010 16:48:56 +0000
Subject: [PATCH] performance: cache the dereferenced use_iterator

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101253 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Scalar/Reg2Mem.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/lib/Transforms/Scalar/Reg2Mem.cpp b/lib/Transforms/Scalar/Reg2Mem.cpp
index 7a6eec3d46b..13222ac2200 100644
--- a/lib/Transforms/Scalar/Reg2Mem.cpp
+++ b/lib/Transforms/Scalar/Reg2Mem.cpp
@@ -46,10 +46,11 @@ namespace {
    bool valueEscapes(const Instruction *Inst) const {
      const BasicBlock *BB = Inst->getParent();
       for (Value::const_use_iterator UI = Inst->use_begin(),E = Inst->use_end();
-           UI != E; ++UI)
-        if (cast<Instruction>(*UI)->getParent() != BB ||
-            isa<PHINode>(*UI))
+           UI != E; ++UI) {
+        const Instruction *I = cast<Instruction>(*UI);
+        if (I->getParent() != BB || isa<PHINode>(I))
           return true;
+      }
       return false;
     }
 
-- 
2.34.1