Enable the loop vectorizer by default for -Os and -O2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184084 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/PassManagerBuilder.cpp b/lib/Transforms/IPO/PassManagerBuilder.cpp
index 8ed7704..0ad45ec 100644
--- a/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ b/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -32,12 +32,6 @@
RunLoopVectorization("vectorize-loops",
cl::desc("Run the Loop vectorization passes"));
-// This is a helper flag that we use for testing the profitability of
-// vectorization on -O2 and -Os. It should go away once we make a decision.
-static cl::opt<bool>
-VectorizeO2("vectorize-o2",
- cl::desc("Enable vectorization on all O levels"));
-
static cl::opt<bool>
RunSLPVectorization("vectorize-slp",
cl::desc("Run the SLP vectorization passes"));
@@ -198,7 +192,7 @@
MPM.add(createLoopIdiomPass()); // Recognize idioms like memset.
MPM.add(createLoopDeletionPass()); // Delete dead loops
- if (LoopVectorize && (OptLevel > 2 || VectorizeO2))
+ if (LoopVectorize && (OptLevel > 1))
MPM.add(createLoopVectorizePass());
if (!DisableUnrollLoops)