diff options
Diffstat (limited to 'tools/opt/opt.cpp')
| -rw-r--r-- | tools/opt/opt.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp index dba16f72da..5e27c09cdd 100644 --- a/tools/opt/opt.cpp +++ b/tools/opt/opt.cpp @@ -471,8 +471,14 @@ static void AddOptimizationPasses(PassManagerBase &MPM,FunctionPassManager &FPM, Builder.DisableUnrollLoops = (DisableLoopUnrolling.getNumOccurrences() > 0) ? DisableLoopUnrolling : OptLevel == 0; - Builder.LoopVectorize = - DisableLoopVectorization ? false : OptLevel > 1 && SizeLevel < 2; + // This is final, unless there is a #pragma vectorize enable + if (DisableLoopVectorization) + Builder.LoopVectorize = false; + // If option wasn't forced via cmd line (-vectorize-loops, -loop-vectorize) + else if (!Builder.LoopVectorize) + Builder.LoopVectorize = OptLevel > 1 && SizeLevel < 2; + + // When #pragma vectorize is on for SLP, do the same as above Builder.SLPVectorize = DisableSLPVectorization ? false : OptLevel > 1 && SizeLevel < 2; |