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[sancov] Adopt createUnlikelyBranchWeights in CreateGateBranch #117398

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[sancov] Adopt createUnlikelyBranchWeights in CreateGateBranch #117398

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962bd8c
[Fuzzer] Adopt createUnlikelyBranchWeights in CreateGateBranch
thetruestblue Nov 22, 2024
d57736d
Merge branch 'main' into thetruestblue/convert-weights
vitalybuka Dec 11, 2024
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2 changes: 1 addition & 1 deletion llvm/lib/Transforms/Instrumentation/SanitizerCoverage.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -834,7 +834,7 @@ Instruction *ModuleSanitizerCoverage::CreateGateBranch(Function &F,
// Set the branch weights in order to minimize the price paid when the
// gate is turned off, allowing the default enablement of this
// instrumentation with as little of a performance cost as possible
auto Weights = MDBuilder(*C).createBranchWeights(1, 100000);
auto Weights = MDBuilder(*C).createUnlikelyBranchWeights();
return SplitBlockAndInsertIfThen(FunctionGateCmp, IP, false, Weights);
}

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