diff options
Diffstat (limited to 'llvm/lib/Transforms/IPO/PassManagerBuilder.cpp')
| -rw-r--r-- | llvm/lib/Transforms/IPO/PassManagerBuilder.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp index d425d6fddbd..94d419fc7f3 100644 --- a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp +++ b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp @@ -85,6 +85,10 @@ static cl::opt<bool> EnableLoopInterchange( "enable-loopinterchange", cl::init(false), cl::Hidden, cl::desc("Enable the new, experimental LoopInterchange Pass")); +static cl::opt<bool> EnableLoopDistribute( + "enable-loop-distribute", cl::init(false), cl::Hidden, + cl::desc("Enable the new, experimental LoopDistribution Pass")); + PassManagerBuilder::PassManagerBuilder() { OptLevel = 2; SizeLevel = 0; @@ -320,6 +324,11 @@ void PassManagerBuilder::populateModulePassManager( // on the rotated form. MPM.add(createLoopRotatePass()); + // Distribute loops to allow partial vectorization. I.e. isolate dependences + // into separate loop that would otherwise inhibit vectorization. + if (EnableLoopDistribute) + MPM.add(createLoopDistributePass()); + MPM.add(createLoopVectorizePass(DisableUnrollLoops, LoopVectorize)); // FIXME: Because of #pragma vectorize enable, the passes below are always // inserted in the pipeline, even when the vectorizer doesn't run (ex. when |
