blob: 450e9481fa006fa7784635a405ccf662edbe2915 (
plain)
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
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
//===------ JITSymbolFlags.h - Flags for symbols in the JIT -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Symbol flags for symbols in the JIT (e.g. weak, exported).
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_EXECUTIONENGINE_JITSYMBOLFLAGS_H
#define LLVM_EXECUTIONENGINE_JITSYMBOLFLAGS_H
#include "llvm/IR/GlobalValue.h"
namespace llvm {
/// @brief Flags for symbols in the JIT.
enum class JITSymbolFlags : char {
None = 0,
Weak = 1U << 0,
Exported = 1U << 1
};
inline JITSymbolFlags operator|(JITSymbolFlags LHS, JITSymbolFlags RHS) {
typedef std::underlying_type<JITSymbolFlags>::type UT;
return static_cast<JITSymbolFlags>(
static_cast<UT>(LHS) | static_cast<UT>(RHS));
}
inline JITSymbolFlags& operator |=(JITSymbolFlags &LHS, JITSymbolFlags RHS) {
LHS = LHS | RHS;
return LHS;
}
inline JITSymbolFlags operator&(JITSymbolFlags LHS, JITSymbolFlags RHS) {
typedef std::underlying_type<JITSymbolFlags>::type UT;
return static_cast<JITSymbolFlags>(
static_cast<UT>(LHS) & static_cast<UT>(RHS));
}
inline JITSymbolFlags& operator &=(JITSymbolFlags &LHS, JITSymbolFlags RHS) {
LHS = LHS & RHS;
return LHS;
}
/// @brief Base class for symbols in the JIT.
class JITSymbolBase {
public:
JITSymbolBase(JITSymbolFlags Flags) : Flags(Flags) {}
JITSymbolFlags getFlags() const { return Flags; }
bool isWeak() const {
return (Flags & JITSymbolFlags::Weak) == JITSymbolFlags::Weak;
}
bool isExported() const {
return (Flags & JITSymbolFlags::Exported) == JITSymbolFlags::Exported;
}
static JITSymbolFlags flagsFromGlobalValue(const GlobalValue &GV) {
JITSymbolFlags Flags = JITSymbolFlags::None;
if (GV.hasWeakLinkage())
Flags |= JITSymbolFlags::Weak;
if (!GV.hasLocalLinkage() && !GV.hasHiddenVisibility())
Flags |= JITSymbolFlags::Exported;
return Flags;
}
private:
JITSymbolFlags Flags;
};
} // end namespace llvm
#endif
|
