[llvm-commits] [llvm] r169334 - /llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp

[Nadav Rotem]

Author: nadav
Date: Tue Dec  4 17:25:24 2012
New Revision: 169334

URL: http://llvm.org/viewvc/llvm-project?rev=169334&view=rev
Log:
LoopVectorizer: Increase the number of pointers that can be tested at runtime. If we cant prove statically that the pointers are disjoint then we add the runtime check. 

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=169334&r1=169333&r2=169334&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp (original)
+++ llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp Tue Dec  4 17:25:24 2012
@@ -90,7 +90,7 @@
 
 /// When performing a runtime memory check, do not check more than this
 /// number of pointers. Notice that the check is quadratic!
-const unsigned RuntimeMemoryCheckThreshold = 2;
+const unsigned RuntimeMemoryCheckThreshold = 4;
 
 /// This is the highest vector width that we try to generate.
 const unsigned MaxVectorSize = 8;