[llvm-commits] [llvm] r159331 - /llvm/trunk/lib/Transforms/Vectorize/BBVectorize.cpp

[Hal Finkel]

Author: hfinkel
Date: Thu Jun 28 00:42:43 2012
New Revision: 159331

URL: http://llvm.org/viewvc/llvm-project?rev=159331&view=rev
Log:
Remove a useless check in BBVectorize.

A shuffle mask will always be a constant, but I did not realize that
when I originally wrote the code.

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

Modified: llvm/trunk/lib/Transforms/Vectorize/BBVectorize.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Vectorize/BBVectorize.cpp?rev=159331&r1=159330&r2=159331&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Vectorize/BBVectorize.cpp (original)
+++ llvm/trunk/lib/Transforms/Vectorize/BBVectorize.cpp Thu Jun 28 00:42:43 2012
@@ -747,11 +747,6 @@
       } else {
         return false;
       }
-    } else if (isa<ShuffleVectorInst>(I)) {
-      // Only merge two shuffles if they're both constant
-      return isa<Constant>(I->getOperand(2)) &&
-             isa<Constant>(J->getOperand(2));
-      // FIXME: We may want to vectorize non-constant shuffles also.
     }
 
     // The powi intrinsic is special because only the first argument is