Index: llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp =================================================================== --- llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp +++ llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp @@ -440,10 +440,12 @@ // More loops are countable; try to optimize them. PM.add(createIndVarSimplifyPass()); PM.add(createLoopDeletionPass()); - PM.add(createLoopVectorizePass(true, true)); + PM.add(createLoopVectorizePass(DisableUnrollLoops, LoopVectorize)); // More scalar chains could be vectorized due to more alias information - PM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains. + if (RunSLPAfterLoopVectorization) + if (SLPVectorize) + PM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains. // After vectorization, assume intrinsics may tell us more about pointer // alignments.