Author: Roman Lebedev Date: 2020-11-26T22:51:21+03:00 New Revision: 65db7d38e0502db7b5753e974e630fd1663cb65b
URL: https://github.com/llvm/llvm-project/commit/65db7d38e0502db7b5753e974e630fd1663cb65b DIFF: https://github.com/llvm/llvm-project/commit/65db7d38e0502db7b5753e974e630fd1663cb65b.diff LOG: [NFC][SimplifyCFG] Add statistic to `FoldBranchToCommonDest()` fold Added: Modified: llvm/lib/Transforms/Utils/SimplifyCFG.cpp Removed: ################################################################################ diff --git a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp index 7aeeee4188ed..0f4c1b4038e5 100644 --- a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp @@ -159,6 +159,8 @@ STATISTIC( NumLookupTablesHoles, "Number of switch instructions turned into lookup tables (holes checked)"); STATISTIC(NumTableCmpReuses, "Number of reused switch table lookup compares"); +STATISTIC(NumFoldBranchToCommonDest, + "Number of branches folded into predecessor basic block"); STATISTIC( NumHoistCommonCode, "Number of common instruction 'blocks' hoisted up to the begin block"); @@ -2710,6 +2712,12 @@ bool llvm::FoldBranchToCommonDest(BranchInst *BI, MemorySSAUpdater *MSSAU, const unsigned PredCount = pred_size(BB); bool Changed = false; + + auto _ = make_scope_exit([&]() { + if (Changed) + ++NumFoldBranchToCommonDest; + }); + TargetTransformInfo::TargetCostKind CostKind = BB->getParent()->hasMinSize() ? TargetTransformInfo::TCK_CodeSize : TargetTransformInfo::TCK_SizeAndLatency; _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits