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 40bbfb6..e6ee943 100644
--- a/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ b/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -187,7 +187,7 @@
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)