6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
//===- ReachableCode.h -----------------------------------------*- 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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// A flow-sensitive, path-insensitive analysis of unreachable code.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_ANALYSIS_ANALYSES_REACHABLECODE_H
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#define LLVM_CLANG_ANALYSIS_ANALYSES_REACHABLECODE_H
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#include "clang/Basic/SourceLocation.h"
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//===----------------------------------------------------------------------===//
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// Forward declarations.
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//===----------------------------------------------------------------------===//
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namespace llvm {
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class BitVector;
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}
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namespace clang {
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class AnalysisDeclContext;
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class CFGBlock;
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class Preprocessor;
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}
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//===----------------------------------------------------------------------===//
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// API.
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//===----------------------------------------------------------------------===//
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namespace clang {
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namespace reachable_code {
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/// Classifications of unreachable code.
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enum UnreachableKind {
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UK_Return,
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UK_Break,
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UK_Loop_Increment,
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UK_Other
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};
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class Callback {
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virtual void anchor();
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public:
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virtual ~Callback() {}
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virtual void HandleUnreachable(UnreachableKind UK, SourceLocation L,
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SourceRange ConditionVal, SourceRange R1,
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SourceRange R2, bool HasFallThroughAttr) = 0;
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};
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/// ScanReachableFromBlock - Mark all blocks reachable from Start.
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/// Returns the total number of blocks that were marked reachable.
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unsigned ScanReachableFromBlock(const CFGBlock *Start,
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llvm::BitVector &Reachable);
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void FindUnreachableCode(AnalysisDeclContext &AC, Preprocessor &PP,
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Callback &CB);
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}} // end namespace clang::reachable_code
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#endif
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