6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
115 lines
3.1 KiB
C++
115 lines
3.1 KiB
C++
//=- AnalysisBasedWarnings.h - Sema warnings based on libAnalysis -*- C++ -*-=//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines AnalysisBasedWarnings, a worker object used by Sema
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// that issues warnings based on dataflow-analysis.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_SEMA_ANALYSISBASEDWARNINGS_H
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#define LLVM_CLANG_SEMA_ANALYSISBASEDWARNINGS_H
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#include "clang/AST/Decl.h"
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#include "llvm/ADT/DenseMap.h"
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#include <memory>
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namespace clang {
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class Decl;
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class FunctionDecl;
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class QualType;
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class Sema;
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namespace sema {
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class FunctionScopeInfo;
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}
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namespace sema {
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class AnalysisBasedWarnings {
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public:
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class Policy {
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friend class AnalysisBasedWarnings;
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// The warnings to run.
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LLVM_PREFERRED_TYPE(bool)
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unsigned enableCheckFallThrough : 1;
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LLVM_PREFERRED_TYPE(bool)
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unsigned enableCheckUnreachable : 1;
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LLVM_PREFERRED_TYPE(bool)
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unsigned enableThreadSafetyAnalysis : 1;
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LLVM_PREFERRED_TYPE(bool)
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unsigned enableConsumedAnalysis : 1;
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public:
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Policy();
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void disableCheckFallThrough() { enableCheckFallThrough = 0; }
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};
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private:
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Sema &S;
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Policy DefaultPolicy;
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class InterProceduralData;
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std::unique_ptr<InterProceduralData> IPData;
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enum VisitFlag { NotVisited = 0, Visited = 1, Pending = 2 };
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llvm::DenseMap<const FunctionDecl*, VisitFlag> VisitedFD;
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/// \name Statistics
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/// @{
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/// Number of function CFGs built and analyzed.
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unsigned NumFunctionsAnalyzed;
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/// Number of functions for which the CFG could not be successfully
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/// built.
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unsigned NumFunctionsWithBadCFGs;
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/// Total number of blocks across all CFGs.
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unsigned NumCFGBlocks;
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/// Largest number of CFG blocks for a single function analyzed.
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unsigned MaxCFGBlocksPerFunction;
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/// Total number of CFGs with variables analyzed for uninitialized
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/// uses.
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unsigned NumUninitAnalysisFunctions;
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/// Total number of variables analyzed for uninitialized uses.
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unsigned NumUninitAnalysisVariables;
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/// Max number of variables analyzed for uninitialized uses in a single
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/// function.
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unsigned MaxUninitAnalysisVariablesPerFunction;
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/// Total number of block visits during uninitialized use analysis.
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unsigned NumUninitAnalysisBlockVisits;
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/// Max number of block visits during uninitialized use analysis of
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/// a single function.
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unsigned MaxUninitAnalysisBlockVisitsPerFunction;
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/// @}
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public:
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AnalysisBasedWarnings(Sema &s);
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~AnalysisBasedWarnings();
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void IssueWarnings(Policy P, FunctionScopeInfo *fscope,
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const Decl *D, QualType BlockType);
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// Issue warnings that require whole-translation-unit analysis.
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void IssueWarnings(TranslationUnitDecl *D);
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Policy getDefaultPolicy() { return DefaultPolicy; }
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void PrintStats() const;
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};
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} // namespace sema
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} // namespace clang
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#endif
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