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 9a750500396..21fa34dfbcf 100644 --- a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp +++ b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp @@ -77,6 +77,10 @@ static cl::opt<bool> EnableMLSM("mlsm", cl::init(true), cl::Hidden, cl::desc("Enable motion of merged load and store")); +static cl::opt<bool> EnableLoopInterchange( + "enable-loopinterchange", cl::init(false), cl::Hidden, + cl::desc("Enable the new, experimental LoopInterchange Pass")); + PassManagerBuilder::PassManagerBuilder() { OptLevel = 2; SizeLevel = 0; @@ -239,6 +243,8 @@ void PassManagerBuilder::populateModulePassManager( MPM.add(createIndVarSimplifyPass()); // Canonicalize indvars MPM.add(createLoopIdiomPass()); // Recognize idioms like memset. MPM.add(createLoopDeletionPass()); // Delete dead loops + if (EnableLoopInterchange) + MPM.add(createLoopInterchangePass()); // Interchange loops if (!DisableUnrollLoops) MPM.add(createSimpleLoopUnrollPass()); // Unroll small loops @@ -454,6 +460,9 @@ void PassManagerBuilder::addLTOOptimizationPasses(legacy::PassManagerBase &PM) { // More loops are countable; try to optimize them. PM.add(createIndVarSimplifyPass()); PM.add(createLoopDeletionPass()); + if (EnableLoopInterchange) + PM.add(createLoopInterchangePass()); + PM.add(createLoopVectorizePass(true, LoopVectorize)); // More scalar chains could be vectorized due to more alias information |
