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LTO: respect command-line options that disable vectorization.

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Summary: Patches 202051 and 208013 added calls to LTO's PassManager which unconditionally add LoopVectorizePass and SLPVectorizerPass instead of following the logic in PassManagerBuilder::populateModulePassManager and honoring the -vectorize-loops -run-slp-after-loop-vectorization flags.

Reviewers: nadav, aschwaighofer, yijiang

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5884

llvm-svn: 220345
This commit is contained in:
JF Bastien 2014-10-21 23:18:21 +00:00
parent 57a9dbf097
commit be14e0d9dd
1 changed files with 4 additions and 2 deletions
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6
lib/Transforms/IPO/PassManagerBuilder.cpp
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@ -440,10 +440,12 @@ void PassManagerBuilder::addLTOOptimizationPasses(PassManagerBase &PM) {
// 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.