[llvm-commits] [llvm] r171471 - /llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp

[Nadav Rotem]

Author: nadav
Date: Fri Jan  4 11:57:44 2013
New Revision: 171471

URL: http://llvm.org/viewvc/llvm-project?rev=171471&view=rev
Log:
Move the loop vectorizer from O2 to O3. It looks like the increase in code size actually hurts the performance on many programs.

Modified:
    llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp

Modified: llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp?rev=171471&r1=171470&r2=171471&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp (original)
+++ llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp Fri Jan  4 11:57:44 2013
@@ -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)