Revert r170246, "Enable the loop vectorizer by default."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170267 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/IPO/PassManagerBuilder.cpp b/lib/Transforms/IPO/PassManagerBuilder.cpp
index 73511838d43941b102b1dc4da4a25a59c8e80928..a9a9f2eeceb97ef01cb87fde04cd0f9c9df10ff2 100644 (file)
--- a/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ b/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -188,7 +188,7 @@ void PassManagerBuilder::populateModulePassManager(PassManagerBase &MPM) {
   MPM.add(createLoopIdiomPass());             // Recognize idioms like memset.
   MPM.add(createLoopDeletionPass());          // Delete dead loops
 
-  if (true && OptLevel > 1)
+  if (LoopVectorize && OptLevel > 1)
     MPM.add(createLoopVectorizePass());
 
   if (!DisableUnrollLoops)