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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
//===- MILexer.h - Lexer for machine instructions ---------------*- 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
//
//===----------------------------------------------------------------------===//
//
// This file declares the function that lexes the machine instruction source
// string.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_CODEGEN_MIRPARSER_MILEXER_H
#define LLVM_LIB_CODEGEN_MIRPARSER_MILEXER_H
#include "llvm/ADT/APSInt.h"
#include "llvm/ADT/StringRef.h"
#include <string>
namespace llvm {
class Twine;
/// A token produced by the machine instruction lexer.
struct MIToken {
enum TokenKind {
// Markers
Eof,
Error,
Newline,
// Tokens with no info.
comma,
equal,
underscore,
colon,
coloncolon,
dot,
exclaim,
lparen,
rparen,
lbrace,
rbrace,
plus,
minus,
less,
greater,
// Keywords
kw_implicit,
kw_implicit_define,
kw_def,
kw_dead,
kw_dereferenceable,
kw_killed,
kw_undef,
kw_internal,
kw_early_clobber,
kw_debug_use,
kw_renamable,
kw_tied_def,
kw_frame_setup,
kw_frame_destroy,
kw_nnan,
kw_ninf,
kw_nsz,
kw_arcp,
kw_contract,
kw_afn,
kw_reassoc,
kw_nuw,
kw_nsw,
kw_exact,
kw_nofpexcept,
kw_debug_location,
kw_debug_instr_number,
kw_cfi_same_value,
kw_cfi_offset,
kw_cfi_rel_offset,
kw_cfi_def_cfa_register,
kw_cfi_def_cfa_offset,
kw_cfi_adjust_cfa_offset,
kw_cfi_escape,
kw_cfi_def_cfa,
kw_cfi_register,
kw_cfi_remember_state,
kw_cfi_restore,
kw_cfi_restore_state,
kw_cfi_undefined,
kw_cfi_window_save,
kw_cfi_aarch64_negate_ra_sign_state,
kw_blockaddress,
kw_intrinsic,
kw_target_index,
kw_half,
kw_float,
kw_double,
kw_x86_fp80,
kw_fp128,
kw_ppc_fp128,
kw_target_flags,
kw_volatile,
kw_non_temporal,
kw_invariant,
kw_align,
kw_basealign,
kw_addrspace,
kw_stack,
kw_got,
kw_jump_table,
kw_constant_pool,
kw_call_entry,
kw_custom,
kw_liveout,
kw_address_taken,
kw_landing_pad,
kw_ehfunclet_entry,
kw_liveins,
kw_successors,
kw_floatpred,
kw_intpred,
kw_shufflemask,
kw_pre_instr_symbol,
kw_post_instr_symbol,
kw_heap_alloc_marker,
kw_bbsections,
kw_unknown_size,
// Named metadata keywords
md_tbaa,
md_alias_scope,
md_noalias,
md_range,
md_diexpr,
md_dilocation,
// Identifier tokens
Identifier,
NamedRegister,
NamedVirtualRegister,
MachineBasicBlockLabel,
MachineBasicBlock,
StackObject,
FixedStackObject,
NamedGlobalValue,
GlobalValue,
ExternalSymbol,
MCSymbol,
// Other tokens
IntegerLiteral,
FloatingPointLiteral,
HexLiteral,
VectorLiteral,
VirtualRegister,
ConstantPoolItem,
JumpTableIndex,
NamedIRBlock,
IRBlock,
NamedIRValue,
IRValue,
QuotedIRValue, // `<constant value>`
SubRegisterIndex,
StringConstant
};
private:
TokenKind Kind = Error;
StringRef Range;
StringRef StringValue;
std::string StringValueStorage;
APSInt IntVal;
public:
MIToken() = default;
MIToken &reset(TokenKind Kind, StringRef Range);
MIToken &setStringValue(StringRef StrVal);
MIToken &setOwnedStringValue(std::string StrVal);
MIToken &setIntegerValue(APSInt IntVal);
TokenKind kind() const { return Kind; }
bool isError() const { return Kind == Error; }
bool isNewlineOrEOF() const { return Kind == Newline || Kind == Eof; }
bool isErrorOrEOF() const { return Kind == Error || Kind == Eof; }
bool isRegister() const {
return Kind == NamedRegister || Kind == underscore ||
Kind == NamedVirtualRegister || Kind == VirtualRegister;
}
bool isRegisterFlag() const {
return Kind == kw_implicit || Kind == kw_implicit_define ||
Kind == kw_def || Kind == kw_dead || Kind == kw_killed ||
Kind == kw_undef || Kind == kw_internal ||
Kind == kw_early_clobber || Kind == kw_debug_use ||
Kind == kw_renamable;
}
bool isMemoryOperandFlag() const {
return Kind == kw_volatile || Kind == kw_non_temporal ||
Kind == kw_dereferenceable || Kind == kw_invariant ||
Kind == StringConstant;
}
bool is(TokenKind K) const { return Kind == K; }
bool isNot(TokenKind K) const { return Kind != K; }
StringRef::iterator location() const { return Range.begin(); }
StringRef range() const { return Range; }
/// Return the token's string value.
StringRef stringValue() const { return StringValue; }
const APSInt &integerValue() const { return IntVal; }
bool hasIntegerValue() const {
return Kind == IntegerLiteral || Kind == MachineBasicBlock ||
Kind == MachineBasicBlockLabel || Kind == StackObject ||
Kind == FixedStackObject || Kind == GlobalValue ||
Kind == VirtualRegister || Kind == ConstantPoolItem ||
Kind == JumpTableIndex || Kind == IRBlock || Kind == IRValue;
}
};
/// Consume a single machine instruction token in the given source and return
/// the remaining source string.
StringRef lexMIToken(
StringRef Source, MIToken &Token,
function_ref<void(StringRef::iterator, const Twine &)> ErrorCallback);
} // end namespace llvm
#endif // LLVM_LIB_CODEGEN_MIRPARSER_MILEXER_H
|
