[llvm] r179933 - SLPVectorizer: Reduce the compile time by eliminating the search for some of the more expensive patterns. After this change will only check basic arithmetic trees that start at cmpinstr.

[Nadav Rotem]

Author: nadav
Date: Sat Apr 20 02:29:34 2013
New Revision: 179933

URL: http://llvm.org/viewvc/llvm-project?rev=179933&view=rev
Log:
SLPVectorizer: Reduce the compile time by eliminating the search for some of the more expensive patterns. After this change will only check basic arithmetic trees that start at cmpinstr.

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

Modified: llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp?rev=179933&r1=179932&r2=179933&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp (original)
+++ llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp Sat Apr 20 02:29:34 2013
@@ -261,7 +261,7 @@ bool SLPVectorizer::vectorizeReductions(
       }
       for (int i = 0; i < 2; ++i)
         if (BinaryOperator *BI = dyn_cast<BinaryOperator>(CI->getOperand(i)))
-          Changed |= tryToVectorize(BI, R);
+          Changed |= tryToVectorizePair(BI->getOperand(0), BI->getOperand(1), R);
       continue;
     }
   }