[llvm] r199015 - LoopVectorizer: Enable strided memory accesses versioning per default

[Arnold Schwaighofer]

Author: arnolds
Date: Sat Jan 11 14:40:34 2014
New Revision: 199015

URL: http://llvm.org/viewvc/llvm-project?rev=199015&view=rev
Log:
LoopVectorizer: Enable strided memory accesses versioning per default

I saw no compile or execution time regressions on x86_64 -mavx -O3.

radar://13075509

Modified:
    llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp

Modified: llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp?rev=199015&r1=199014&r2=199015&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp (original)
+++ llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp Sat Jan 11 14:40:34 2014
@@ -126,7 +126,7 @@ TinyTripCountVectorThreshold("vectorizer
 ///    } else
 ///      ...
 static cl::opt<bool> EnableMemAccessVersioning(
-    "enable-mem-access-versioning", cl::init(false), cl::Hidden,
+    "enable-mem-access-versioning", cl::init(true), cl::Hidden,
     cl::desc("Enable symblic stride memory access versioning"));
 
 /// We don't unroll loops with a known constant trip count below this number.