From: Nadav Rotem <nrotem@apple.com>
Date: Thu, 1 Aug 2013 18:28:15 +0000 (+0000)
Subject: Only enable SLP-vectorization on O3 builds.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a4cbd78af84b76f92202f2f2b1a3c49ff1f85798;p=oota-llvm.git

Only enable SLP-vectorization on O3 builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187595 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/IPO/PassManagerBuilder.cpp b/lib/Transforms/IPO/PassManagerBuilder.cpp
index 6355204a03e..5363c91cc84 100644
--- a/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ b/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -217,7 +217,7 @@ void PassManagerBuilder::populateModulePassManager(PassManagerBase &MPM) {
   addExtensionsToPM(EP_ScalarOptimizerLate, MPM);
 
   if (!LateVectorize) {
-    if (SLPVectorize)
+    if (SLPVectorize && OptLevel > 2)
       MPM.add(createSLPVectorizerPass());   // Vectorize parallel scalar chains.
 
     if (BBVectorize) {