From: Chris Lattner <sabre@nondot.org>
Date: Thu, 13 Feb 2003 19:46:22 +0000 (+0000)
Subject: This speeds up processing LLVM a _lot_, 17% in the case of loading and destroying... 
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=0779388ff830e0636f3071e70546e33d3b645f54;p=oota-llvm.git

This speeds up processing LLVM a _lot_, 17% in the case of loading and destroying "vortex"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5553 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/VMCore/Value.cpp b/lib/VMCore/Value.cpp
index f343a6c1551..ac13159e30a 100644
--- a/lib/VMCore/Value.cpp
+++ b/lib/VMCore/Value.cpp
@@ -89,7 +89,8 @@ void Value::killUse(User *U) {
     /* empty */;
 
   assert(i < Uses.size() && "Use not in uses list!!");
-  Uses.erase(Uses.begin()+i);
+  Uses[i] = Uses.back();
+  Uses.pop_back();
 }
 
 //===----------------------------------------------------------------------===//