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56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
//===- ReachableCode.h -----------------------------------------*- C++ --*-===//
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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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// A flow-sensitive, path-insensitive analysis of unreachable code.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_REACHABLECODE_H
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#define LLVM_CLANG_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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}
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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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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(SourceLocation L, SourceRange R1,
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SourceRange R2) = 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, Callback &CB);
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}} // end namespace clang::reachable_code
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#endif
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