blob: 30c5b2d7a5b25d94766a34891d22e75dbb700656 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
//===- ReachableCode.h -----------------------------------------*- C++ --*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// A flow-sensitive, path-insensitive analysis of unreachable code.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_REACHABLECODE_H
#define LLVM_CLANG_REACHABLECODE_H
#include "clang/Basic/SourceLocation.h"
//===----------------------------------------------------------------------===//
// Forward declarations.
//===----------------------------------------------------------------------===//
namespace llvm {
class BitVector;
}
namespace clang {
class AnalysisDeclContext;
class CFGBlock;
}
//===----------------------------------------------------------------------===//
// API.
//===----------------------------------------------------------------------===//
namespace clang {
namespace reachable_code {
class Callback {
virtual void anchor();
public:
virtual ~Callback() {}
virtual void HandleUnreachable(SourceLocation L, SourceRange R1,
SourceRange R2) = 0;
};
/// ScanReachableFromBlock - Mark all blocks reachable from Start.
/// Returns the total number of blocks that were marked reachable.
unsigned ScanReachableFromBlock(const CFGBlock *Start,
llvm::BitVector &Reachable);
void FindUnreachableCode(AnalysisDeclContext &AC, Callback &CB);
}} // end namespace clang::reachable_code
#endif
|
