From 6afea253e078357f7c306fa2b13151bbe24ae049 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Sun, 27 Sep 2009 15:32:21 +0000
Subject: [PATCH] Micro-optimize DerivedType::dropAllTypeUses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82900 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/VMCore/Type.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/VMCore/Type.cpp b/lib/VMCore/Type.cpp
index da53800ad7e..820789d89e7 100644
--- a/lib/VMCore/Type.cpp
+++ b/lib/VMCore/Type.cpp
@@ -498,8 +498,9 @@ void DerivedType::dropAllTypeUses() {
     // pick so long as it doesn't point back to this type.  We choose something
     // concrete to avoid overhead for adding to AbstractTypeUser lists and
     // stuff.
+    const Type *ConcreteTy = Type::getInt32Ty(getContext());
     for (unsigned i = 1, e = NumContainedTys; i != e; ++i)
-      ContainedTys[i] = Type::getInt32Ty(getContext());
+      ContainedTys[i] = ConcreteTy;
   }
 }