From: Michael Zolotukhin <mzolotukhin@apple.com>
Date: Tue, 10 Mar 2015 19:07:41 +0000 (+0000)
Subject: Enable loop-rotate before loop-vectorize by default
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7212f8bb523bedbe40fa4e9fb0a12a6606f37473;p=llvm

Enable loop-rotate before loop-vectorize by default

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231820 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/IPO/PassManagerBuilder.cpp b/lib/Transforms/IPO/PassManagerBuilder.cpp
index 21fa34dfbcf..9fd84d845d5 100644
--- a/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ b/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -311,8 +311,7 @@ void PassManagerBuilder::populateModulePassManager(
   // Re-rotate loops in all our loop nests. These may have fallout out of
   // rotated form due to GVN or other transformations, and the vectorizer relies
   // on the rotated form.
-  if (ExtraVectorizerPasses)
-    MPM.add(createLoopRotatePass());
+  MPM.add(createLoopRotatePass());
 
   MPM.add(createLoopVectorizePass(DisableUnrollLoops, LoopVectorize));
   // FIXME: Because of #pragma vectorize enable, the passes below are always