From: Nadav Rotem <nrotem@apple.com>
Date: Fri, 4 Jan 2013 17:57:44 +0000 (+0000)
Subject: Move the loop vectorizer from O2 to O3. It looks like the increase in code size actua... 
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=b7c772922e53a2b4705fe93397dfbc92d1dc8ef7;p=oota-llvm.git

Move the loop vectorizer from O2 to O3. It looks like the increase in code size actually hurts the performance on many programs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171471 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/IPO/PassManagerBuilder.cpp b/lib/Transforms/IPO/PassManagerBuilder.cpp
index 40bbfb67f28..e6ee9432c6e 100644
--- a/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ b/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -187,7 +187,7 @@ void PassManagerBuilder::populateModulePassManager(PassManagerBase &MPM) {
   MPM.add(createLoopIdiomPass());             // Recognize idioms like memset.
   MPM.add(createLoopDeletionPass());          // Delete dead loops
 
-  if (LoopVectorize && OptLevel > 1)
+  if (LoopVectorize && OptLevel > 2)
     MPM.add(createLoopVectorizePass());
 
   if (!DisableUnrollLoops)