diff options
Diffstat (limited to 'llvm/lib/Passes')
| -rw-r--r-- | llvm/lib/Passes/PassBuilder.cpp | 6 | ||||
| -rw-r--r-- | llvm/lib/Passes/PassRegistry.def | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Passes/PassBuilder.cpp b/llvm/lib/Passes/PassBuilder.cpp index 62e00baabaf..c277b5b14e7 100644 --- a/llvm/lib/Passes/PassBuilder.cpp +++ b/llvm/lib/Passes/PassBuilder.cpp @@ -92,6 +92,7 @@ #include "llvm/Transforms/Scalar/CorrelatedValuePropagation.h" #include "llvm/Transforms/Scalar/DCE.h" #include "llvm/Transforms/Scalar/DeadStoreElimination.h" +#include "llvm/Transforms/Scalar/DivRemPairs.h" #include "llvm/Transforms/Scalar/EarlyCSE.h" #include "llvm/Transforms/Scalar/Float2Int.h" #include "llvm/Transforms/Scalar/GVN.h" @@ -765,6 +766,11 @@ PassBuilder::buildModuleOptimizationPipeline(OptimizationLevel Level, // And finally clean up LCSSA form before generating code. OptimizePM.addPass(InstSimplifierPass()); + // This hoists/decomposes div/rem ops. It should run after other sink/hoist + // passes to avoid re-sinking, but before SimplifyCFG because it can allow + // flattening of blocks. + OptimizePM.addPass(DivRemPairsPass()); + // LoopSink (and other loop passes since the last simplifyCFG) might have // resulted in single-entry-single-exit or empty blocks. Clean up the CFG. OptimizePM.addPass(SimplifyCFGPass()); diff --git a/llvm/lib/Passes/PassRegistry.def b/llvm/lib/Passes/PassRegistry.def index 5b8c3ada883..bfe3dd782c1 100644 --- a/llvm/lib/Passes/PassRegistry.def +++ b/llvm/lib/Passes/PassRegistry.def @@ -142,6 +142,7 @@ FUNCTION_PASS("break-crit-edges", BreakCriticalEdgesPass()) FUNCTION_PASS("consthoist", ConstantHoistingPass()) FUNCTION_PASS("correlated-propagation", CorrelatedValuePropagationPass()) FUNCTION_PASS("dce", DCEPass()) +FUNCTION_PASS("div-rem-pairs", DivRemPairsPass()) FUNCTION_PASS("dse", DSEPass()) FUNCTION_PASS("dot-cfg", CFGPrinterPass()) FUNCTION_PASS("dot-cfg-only", CFGOnlyPrinterPass()) |
