diff options
| -rw-r--r-- | llvm/lib/Passes/PassBuilder.cpp | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/llvm/lib/Passes/PassBuilder.cpp b/llvm/lib/Passes/PassBuilder.cpp index 6ece7965ce6..7be464e52b6 100644 --- a/llvm/lib/Passes/PassBuilder.cpp +++ b/llvm/lib/Passes/PassBuilder.cpp @@ -155,6 +155,11 @@ static cl::opt<bool> cl::Hidden, cl::ZeroOrMore, cl::desc("Run Partial inlinining pass")); +static cl::opt<bool> + RunNewGVN("enable-nmp-newgvn", cl::init(false), + cl::Hidden, cl::ZeroOrMore, + cl::desc("Run NewGVN instead of GVN")); + static cl::opt<bool> EnableGVNHoist( "enable-npm-gvn-hoist", cl::init(false), cl::Hidden, cl::desc("Enable the GVN hoisting pass for the new PM (default = off)")); @@ -357,7 +362,10 @@ PassBuilder::buildFunctionSimplificationPipeline(OptimizationLevel Level, if (Level != O1) { // These passes add substantial compile time so skip them at O1. FPM.addPass(MergedLoadStoreMotionPass()); - FPM.addPass(GVN()); + if (RunNewGVN) + FPM.addPass(NewGVNPass()); + else + FPM.addPass(GVN()); } // Specially optimize memory movement as it doesn't look like dataflow in SSA. @@ -774,7 +782,10 @@ ModulePassManager PassBuilder::buildLTODefaultPipeline(OptimizationLevel Level, // FIXME: once we fix LoopPass Manager, add LICM here. // FIXME: once we provide support for enabling MLSM, add it here. // FIXME: once we provide support for enabling NewGVN, add it here. - MainFPM.addPass(GVN()); + if (RunNewGVN) + MainFPM.addPass(NewGVNPass()); + else + MainFPM.addPass(GVN()); // Remove dead memcpy()'s. MainFPM.addPass(MemCpyOptPass()); |
