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
|
//===-- NVPTXMCExpr.h - NVPTX specific MC expression classes ----*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// Modeled after ARMMCExpr
#ifndef LLVM_LIB_TARGET_NVPTX_NVPTXMCEXPR_H
#define LLVM_LIB_TARGET_NVPTX_NVPTXMCEXPR_H
#include "llvm/ADT/APFloat.h"
#include "llvm/MC/MCExpr.h"
#include <utility>
namespace llvm {
class NVPTXFloatMCExpr : public MCTargetExpr {
public:
enum VariantKind {
VK_NVPTX_None,
VK_NVPTX_HALF_PREC_FLOAT, // FP constant in half-precision
VK_NVPTX_SINGLE_PREC_FLOAT, // FP constant in single-precision
VK_NVPTX_DOUBLE_PREC_FLOAT // FP constant in double-precision
};
private:
const VariantKind Kind;
const APFloat Flt;
explicit NVPTXFloatMCExpr(VariantKind Kind, APFloat Flt)
: Kind(Kind), Flt(std::move(Flt)) {}
public:
/// @name Construction
/// @{
static const NVPTXFloatMCExpr *create(VariantKind Kind, const APFloat &Flt,
MCContext &Ctx);
static const NVPTXFloatMCExpr *createConstantFPHalf(const APFloat &Flt,
MCContext &Ctx) {
return create(VK_NVPTX_HALF_PREC_FLOAT, Flt, Ctx);
}
static const NVPTXFloatMCExpr *createConstantFPSingle(const APFloat &Flt,
MCContext &Ctx) {
return create(VK_NVPTX_SINGLE_PREC_FLOAT, Flt, Ctx);
}
static const NVPTXFloatMCExpr *createConstantFPDouble(const APFloat &Flt,
MCContext &Ctx) {
return create(VK_NVPTX_DOUBLE_PREC_FLOAT, Flt, Ctx);
}
/// @}
/// @name Accessors
/// @{
/// getOpcode - Get the kind of this expression.
VariantKind getKind() const { return Kind; }
/// getSubExpr - Get the child of this expression.
APFloat getAPFloat() const { return Flt; }
/// @}
void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
bool evaluateAsRelocatableImpl(MCValue &Res,
const MCAsmLayout *Layout,
const MCFixup *Fixup) const override {
return false;
}
void visitUsedExpr(MCStreamer &Streamer) const override {};
MCFragment *findAssociatedFragment() const override { return nullptr; }
// There are no TLS NVPTXMCExprs at the moment.
void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Target;
}
};
/// A wrapper for MCSymbolRefExpr that tells the assembly printer that the
/// symbol should be enclosed by generic().
class NVPTXGenericMCSymbolRefExpr : public MCTargetExpr {
private:
const MCSymbolRefExpr *SymExpr;
explicit NVPTXGenericMCSymbolRefExpr(const MCSymbolRefExpr *_SymExpr)
: SymExpr(_SymExpr) {}
public:
/// @name Construction
/// @{
static const NVPTXGenericMCSymbolRefExpr
*create(const MCSymbolRefExpr *SymExpr, MCContext &Ctx);
/// @}
/// @name Accessors
/// @{
/// getOpcode - Get the kind of this expression.
const MCSymbolRefExpr *getSymbolExpr() const { return SymExpr; }
/// @}
void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
bool evaluateAsRelocatableImpl(MCValue &Res,
const MCAsmLayout *Layout,
const MCFixup *Fixup) const override {
return false;
}
void visitUsedExpr(MCStreamer &Streamer) const override {};
MCFragment *findAssociatedFragment() const override { return nullptr; }
// There are no TLS NVPTXMCExprs at the moment.
void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
static bool classof(const MCExpr *E) {
return E->getKind() == MCExpr::Target;
}
};
} // end namespace llvm
#endif
|
