blob: 91dd709000ce1c2fcf8bc4df1e3a14f52284958b (
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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
//===-- llvm/Support/APSInt.h - Arbitrary Precision Signed Int -*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Chris Lattner and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the APSInt class, which is a simple class that
// represents an arbitrary sized integer that knows its signedness.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_APSINT_H
#define LLVM_APSINT_H
#include "llvm/ADT/APInt.h"
namespace llvm {
class APSInt : public APInt {
bool IsUnsigned;
public:
/// APSInt ctor - Create an APSInt with the specified width, default to
/// unsigned.
explicit APSInt(unsigned BitWidth) : APInt(BitWidth, 0), IsUnsigned(true) {}
APSInt(const APInt &I) : APInt(I), IsUnsigned(true) {}
APSInt &operator=(const APSInt &RHS) {
APInt::operator=(RHS);
IsUnsigned = RHS.IsUnsigned;
return *this;
}
APSInt &operator=(const APInt &RHS) {
// Retain our current sign.
APInt::operator=(RHS);
return *this;
}
APSInt &operator=(uint64_t RHS) {
// Retain our current sign.
APInt::operator=(RHS);
return *this;
}
// Query sign information.
bool isSigned() const { return !IsUnsigned; }
bool isUnsigned() const { return IsUnsigned; }
void setIsUnsigned(bool Val) { IsUnsigned = Val; }
void setIsSigned(bool Val) { IsUnsigned = !Val; }
/// This is used internally to convert an APInt to a string.
/// @brief Converts an APInt to a std::string
std::string toString(uint8_t Radix) const {
return toString(Radix, isSigned());
}
const APSInt &operator%=(const APSInt &RHS) {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
if (IsUnsigned)
*this = urem(RHS);
else
*this = srem(RHS);
return *this;
}
const APSInt &operator/=(const APSInt &RHS) {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
if (IsUnsigned)
*this = udiv(RHS);
else
*this = sdiv(RHS);
return *this;
}
APSInt operator%(const APSInt &RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return IsUnsigned ? urem(RHS) : srem(RHS);
}
APSInt operator/(const APSInt &RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return IsUnsigned ? udiv(RHS) : sdiv(RHS);
}
const APSInt &operator>>=(unsigned Amt) {
*this = *this >> Amt;
return *this;
}
APSInt& extend(uint32_t width) {
if (IsUnsigned)
zext(width);
else
sext(width);
return *this;
}
APSInt& extOrTrunc(uint32_t width) {
if (IsUnsigned)
zextOrTrunc(width);
else
sextOrTrunc(width);
return *this;
}
APSInt operator>>(unsigned Amt) const {
return IsUnsigned ? lshr(Amt) : ashr(Amt);
}
inline bool operator<(const APSInt& RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return IsUnsigned ? ult(RHS) : slt(RHS);
}
inline bool operator>(const APSInt& RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return IsUnsigned ? ugt(RHS) : sgt(RHS);
}
inline bool operator<=(const APSInt& RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return IsUnsigned ? ule(RHS) : sle(RHS);
}
inline bool operator>=(const APSInt& RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return IsUnsigned ? uge(RHS) : sge(RHS);
}
};
} // end namespace llvm
#endif
|
