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9eb38163a5
This splits the logic for actually looking up coverage information from the logic that displays it. These were tangled rather thoroughly so this change is a bit large, but it mostly consists of moving things around. The coverage lookup logic itself now lives in the library, rather than being spread between the library and the tool. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218184 91177308-0d34-0410-b5e6-96231b3b80d8
128 lines
3.7 KiB
C++
128 lines
3.7 KiB
C++
//===- CoverageFilters.h - Function coverage mapping filters --------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// These classes provide filtering for function coverage mapping records.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_COV_COVERAGEFILTERS_H
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#define LLVM_COV_COVERAGEFILTERS_H
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#include "llvm/ProfileData/CoverageMapping.h"
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#include <vector>
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#include <memory>
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namespace llvm {
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/// \brief Matches specific functions that pass the requirement of this filter.
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class CoverageFilter {
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public:
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virtual ~CoverageFilter() {}
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/// \brief Return true if the function passes the requirements of this filter.
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virtual bool matches(const coverage::FunctionRecord &Function) {
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return true;
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}
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};
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/// \brief Matches functions that contain a specific string in their name.
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class NameCoverageFilter : public CoverageFilter {
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StringRef Name;
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public:
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NameCoverageFilter(StringRef Name) : Name(Name) {}
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bool matches(const coverage::FunctionRecord &Function) override;
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};
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/// \brief Matches functions whose name matches a certain regular expression.
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class NameRegexCoverageFilter : public CoverageFilter {
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StringRef Regex;
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public:
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NameRegexCoverageFilter(StringRef Regex) : Regex(Regex) {}
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bool matches(const coverage::FunctionRecord &Function) override;
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};
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/// \brief Matches numbers that pass a certain threshold.
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template <typename T> class StatisticThresholdFilter {
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public:
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enum Operation { LessThan, GreaterThan };
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protected:
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Operation Op;
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T Threshold;
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StatisticThresholdFilter(Operation Op, T Threshold)
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: Op(Op), Threshold(Threshold) {}
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/// \brief Return true if the given number is less than
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/// or greater than the certain threshold.
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bool PassesThreshold(T Value) const {
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switch (Op) {
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case LessThan:
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return Value < Threshold;
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case GreaterThan:
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return Value > Threshold;
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}
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return false;
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}
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};
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/// \brief Matches functions whose region coverage percentage
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/// is above/below a certain percentage.
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class RegionCoverageFilter : public CoverageFilter,
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public StatisticThresholdFilter<double> {
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public:
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RegionCoverageFilter(Operation Op, double Threshold)
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: StatisticThresholdFilter(Op, Threshold) {}
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bool matches(const coverage::FunctionRecord &Function) override;
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};
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/// \brief Matches functions whose line coverage percentage
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/// is above/below a certain percentage.
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class LineCoverageFilter : public CoverageFilter,
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public StatisticThresholdFilter<double> {
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public:
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LineCoverageFilter(Operation Op, double Threshold)
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: StatisticThresholdFilter(Op, Threshold) {}
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bool matches(const coverage::FunctionRecord &Function) override;
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};
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/// \brief A collection of filters.
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/// Matches functions that match any filters contained
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/// in an instance of this class.
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class CoverageFilters : public CoverageFilter {
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protected:
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std::vector<std::unique_ptr<CoverageFilter>> Filters;
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public:
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/// \brief Append a filter to this collection.
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void push_back(std::unique_ptr<CoverageFilter> Filter);
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bool empty() const { return Filters.empty(); }
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bool matches(const coverage::FunctionRecord &Function) override;
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};
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/// \brief A collection of filters.
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/// Matches functions that match all of the filters contained
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/// in an instance of this class.
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class CoverageFiltersMatchAll : public CoverageFilters {
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public:
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bool matches(const coverage::FunctionRecord &Function) override;
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};
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} // namespace llvm
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#endif // LLVM_COV_COVERAGEFILTERS_H
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