forked from golang/go
/
prog.go
329 lines (313 loc) · 21.2 KB
/
prog.go
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
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package amd64
import (
"cmd/compile/internal/gc"
"cmd/internal/obj"
"cmd/internal/obj/x86"
)
const (
LeftRdwr uint32 = gc.LeftRead | gc.LeftWrite
RightRdwr uint32 = gc.RightRead | gc.RightWrite
)
// This table gives the basic information about instruction
// generated by the compiler and processed in the optimizer.
// See opt.h for bit definitions.
//
// Instructions not generated need not be listed.
// As an exception to that rule, we typically write down all the
// size variants of an operation even if we just use a subset.
var progtable = [x86.ALAST & obj.AMask]obj.ProgInfo{
obj.ATYPE: {Flags: gc.Pseudo | gc.Skip},
obj.ATEXT: {Flags: gc.Pseudo},
obj.AFUNCDATA: {Flags: gc.Pseudo},
obj.APCDATA: {Flags: gc.Pseudo},
obj.AUNDEF: {Flags: gc.Break},
obj.AUSEFIELD: {Flags: gc.OK},
obj.ACHECKNIL: {Flags: gc.LeftRead},
obj.AVARDEF: {Flags: gc.Pseudo | gc.RightWrite},
obj.AVARKILL: {Flags: gc.Pseudo | gc.RightWrite},
obj.AVARLIVE: {Flags: gc.Pseudo | gc.LeftRead},
// NOP is an internal no-op that also stands
// for USED and SET annotations, not the Intel opcode.
obj.ANOP: {Flags: gc.LeftRead | gc.RightWrite},
x86.AADCL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry},
x86.AADCQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry},
x86.AADCW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry},
x86.AADDB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AADDL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AADDW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AADDQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AADDSD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | RightRdwr},
x86.AADDSS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | RightRdwr},
x86.AANDB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AANDL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AANDQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AANDW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.ABSFL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.SetCarry},
x86.ABSFQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.SetCarry},
x86.ABSFW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.SetCarry},
x86.ABSRL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.SetCarry},
x86.ABSRQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.SetCarry},
x86.ABSRW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.SetCarry},
x86.ABSWAPL & obj.AMask: {Flags: gc.SizeL | RightRdwr},
x86.ABSWAPQ & obj.AMask: {Flags: gc.SizeQ | RightRdwr},
obj.ACALL & obj.AMask: {Flags: gc.RightAddr | gc.Call | gc.KillCarry},
x86.ACDQ & obj.AMask: {Flags: gc.OK, Reguse: AX, Regset: AX | DX},
x86.ACQO & obj.AMask: {Flags: gc.OK, Reguse: AX, Regset: AX | DX},
x86.ACWD & obj.AMask: {Flags: gc.OK, Reguse: AX, Regset: AX | DX},
x86.ACLD & obj.AMask: {Flags: gc.OK},
x86.ASTD & obj.AMask: {Flags: gc.OK},
x86.ACMOVLEQ & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.UseCarry},
x86.ACMOVLNE & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.UseCarry},
x86.ACMOVQEQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.UseCarry},
x86.ACMOVQNE & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.UseCarry},
x86.ACMOVWEQ & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.UseCarry},
x86.ACMOVWNE & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.UseCarry},
x86.ACMPB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.RightRead | gc.SetCarry},
x86.ACMPL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightRead | gc.SetCarry},
x86.ACMPQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightRead | gc.SetCarry},
x86.ACMPW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightRead | gc.SetCarry},
x86.ACOMISD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightRead | gc.SetCarry},
x86.ACOMISS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightRead | gc.SetCarry},
x86.ACVTSD2SL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTSD2SQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTSD2SS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTSL2SD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTSL2SS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTSQ2SD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTSQ2SS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTSS2SD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTSS2SL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTSS2SQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTTSD2SL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTTSD2SQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTTSS2SL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ACVTTSS2SQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.ADECB & obj.AMask: {Flags: gc.SizeB | RightRdwr},
x86.ADECL & obj.AMask: {Flags: gc.SizeL | RightRdwr},
x86.ADECQ & obj.AMask: {Flags: gc.SizeQ | RightRdwr},
x86.ADECW & obj.AMask: {Flags: gc.SizeW | RightRdwr},
x86.ADIVB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.SetCarry, Reguse: AX, Regset: AX},
x86.ADIVL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.SetCarry, Reguse: AX | DX, Regset: AX | DX},
x86.ADIVQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.SetCarry, Reguse: AX | DX, Regset: AX | DX},
x86.ADIVW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.SetCarry, Reguse: AX | DX, Regset: AX | DX},
x86.ADIVSD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | RightRdwr},
x86.ADIVSS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | RightRdwr},
x86.AIDIVB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.SetCarry, Reguse: AX, Regset: AX},
x86.AIDIVL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.SetCarry, Reguse: AX | DX, Regset: AX | DX},
x86.AIDIVQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.SetCarry, Reguse: AX | DX, Regset: AX | DX},
x86.AIDIVW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.SetCarry, Reguse: AX | DX, Regset: AX | DX},
x86.AIMULB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.SetCarry, Reguse: AX, Regset: AX},
x86.AIMULL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.ImulAXDX | gc.SetCarry},
x86.AIMULQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.ImulAXDX | gc.SetCarry},
x86.AIMULW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.ImulAXDX | gc.SetCarry},
x86.AINCB & obj.AMask: {Flags: gc.SizeB | RightRdwr},
x86.AINCL & obj.AMask: {Flags: gc.SizeL | RightRdwr},
x86.AINCQ & obj.AMask: {Flags: gc.SizeQ | RightRdwr},
x86.AINCW & obj.AMask: {Flags: gc.SizeW | RightRdwr},
x86.AJCC & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJCS & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJEQ & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJGE & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJGT & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJHI & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJLE & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJLS & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJLT & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJMI & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJNE & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJOC & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJOS & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJPC & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJPL & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
x86.AJPS & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry},
obj.AJMP & obj.AMask: {Flags: gc.Jump | gc.Break | gc.KillCarry},
x86.ALEAW & obj.AMask: {Flags: gc.LeftAddr | gc.RightWrite},
x86.ALEAL & obj.AMask: {Flags: gc.LeftAddr | gc.RightWrite},
x86.ALEAQ & obj.AMask: {Flags: gc.LeftAddr | gc.RightWrite},
x86.AMOVBLSX & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVBLZX & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVBQSX & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVBQZX & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVBWSX & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVBWZX & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVLQSX & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVLQZX & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVWLSX & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVWLZX & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVWQSX & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVWQZX & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVQL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
x86.AMOVB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.RightWrite | gc.Move},
x86.AMOVL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Move},
x86.AMOVQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Move},
x86.AMOVW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Move},
x86.AMOVUPS & obj.AMask: {Flags: gc.LeftRead | gc.RightWrite | gc.Move},
x86.AMOVSB & obj.AMask: {Flags: gc.OK, Reguse: DI | SI, Regset: DI | SI},
x86.AMOVSL & obj.AMask: {Flags: gc.OK, Reguse: DI | SI, Regset: DI | SI},
x86.AMOVSQ & obj.AMask: {Flags: gc.OK, Reguse: DI | SI, Regset: DI | SI},
x86.AMOVSW & obj.AMask: {Flags: gc.OK, Reguse: DI | SI, Regset: DI | SI},
obj.ADUFFCOPY & obj.AMask: {Flags: gc.OK, Reguse: DI | SI, Regset: DI | SI | X0},
x86.AMOVSD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move},
x86.AMOVSS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Move},
// We use&obj.AMask MOVAPD as a faster synonym for MOVSD.
x86.AMOVAPD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move},
x86.AMULB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.SetCarry, Reguse: AX, Regset: AX},
x86.AMULL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.SetCarry, Reguse: AX, Regset: AX | DX},
x86.AMULQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.SetCarry, Reguse: AX, Regset: AX | DX},
x86.AMULW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.SetCarry, Reguse: AX, Regset: AX | DX},
x86.AMULSD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | RightRdwr},
x86.AMULSS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | RightRdwr},
x86.ANEGB & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.SetCarry},
x86.ANEGL & obj.AMask: {Flags: gc.SizeL | RightRdwr | gc.SetCarry},
x86.ANEGQ & obj.AMask: {Flags: gc.SizeQ | RightRdwr | gc.SetCarry},
x86.ANEGW & obj.AMask: {Flags: gc.SizeW | RightRdwr | gc.SetCarry},
x86.ANOTB & obj.AMask: {Flags: gc.SizeB | RightRdwr},
x86.ANOTL & obj.AMask: {Flags: gc.SizeL | RightRdwr},
x86.ANOTQ & obj.AMask: {Flags: gc.SizeQ | RightRdwr},
x86.ANOTW & obj.AMask: {Flags: gc.SizeW | RightRdwr},
x86.AORB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AORL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AORQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AORW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.APOPQ & obj.AMask: {Flags: gc.SizeQ | gc.RightWrite},
x86.APUSHQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead},
x86.APXOR & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | RightRdwr},
x86.ARCLB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry},
x86.ARCLL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry},
x86.ARCLQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry},
x86.ARCLW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry},
x86.ARCRB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry},
x86.ARCRL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry},
x86.ARCRQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry},
x86.ARCRW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry},
x86.AREP & obj.AMask: {Flags: gc.OK, Reguse: CX, Regset: CX},
x86.AREPN & obj.AMask: {Flags: gc.OK, Reguse: CX, Regset: CX},
obj.ARET & obj.AMask: {Flags: gc.Break | gc.KillCarry},
x86.AROLB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.AROLL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.AROLQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.AROLW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ARORB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ARORL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ARORQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ARORW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASALB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASALL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASALQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASALW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASARB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASARL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASARQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASARW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASBBB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry},
x86.ASBBL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry},
x86.ASBBQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry},
x86.ASBBW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry},
x86.ASETCC & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETCS & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETEQ & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETGE & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETGT & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETHI & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETLE & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETLS & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETLT & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETMI & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETNE & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETOC & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETOS & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETPC & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETPL & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASETPS & obj.AMask: {Flags: gc.SizeB | gc.RightWrite | gc.UseCarry},
x86.ASHLB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASHLL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASHLQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASHLW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASHRB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASHRL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASHRQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASHRW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry},
x86.ASQRTSD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | RightRdwr},
x86.ASTOSB & obj.AMask: {Flags: gc.OK, Reguse: AX | DI, Regset: DI},
x86.ASTOSL & obj.AMask: {Flags: gc.OK, Reguse: AX | DI, Regset: DI},
x86.ASTOSQ & obj.AMask: {Flags: gc.OK, Reguse: AX | DI, Regset: DI},
x86.ASTOSW & obj.AMask: {Flags: gc.OK, Reguse: AX | DI, Regset: DI},
obj.ADUFFZERO & obj.AMask: {Flags: gc.OK, Reguse: X0 | DI, Regset: DI},
x86.ASUBB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.ASUBL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.ASUBQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.ASUBW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.ASUBSD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | RightRdwr},
x86.ASUBSS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | RightRdwr},
x86.ATESTB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.RightRead | gc.SetCarry},
x86.ATESTL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightRead | gc.SetCarry},
x86.ATESTQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightRead | gc.SetCarry},
x86.ATESTW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightRead | gc.SetCarry},
x86.AUCOMISD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightRead},
x86.AUCOMISS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightRead},
x86.AXCHGB & obj.AMask: {Flags: gc.SizeB | LeftRdwr | RightRdwr},
x86.AXCHGL & obj.AMask: {Flags: gc.SizeL | LeftRdwr | RightRdwr},
x86.AXCHGQ & obj.AMask: {Flags: gc.SizeQ | LeftRdwr | RightRdwr},
x86.AXCHGW & obj.AMask: {Flags: gc.SizeW | LeftRdwr | RightRdwr},
x86.AXORB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AXORL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AXORQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AXORW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry},
x86.AXORPS & obj.AMask: {Flags: gc.LeftRead | RightRdwr},
}
func progflags(p *obj.Prog) uint32 {
flags := progtable[p.As&obj.AMask].Flags
if flags&gc.ImulAXDX != 0 && p.To.Type != obj.TYPE_NONE {
flags |= RightRdwr
}
return flags
}
func progcarryflags(p *obj.Prog) uint32 {
return progtable[p.As&obj.AMask].Flags
}
func proginfo(p *obj.Prog) {
info := &p.Info
*info = progtable[p.As&obj.AMask]
if info.Flags == 0 {
gc.Fatalf("unknown instruction %v", p)
}
if (info.Flags&gc.ShiftCX != 0) && p.From.Type != obj.TYPE_CONST {
info.Reguse |= CX
}
if info.Flags&gc.ImulAXDX != 0 {
if p.To.Type == obj.TYPE_NONE {
info.Reguse |= AX
info.Regset |= AX | DX
} else {
info.Flags |= RightRdwr
}
}
// Addressing makes some registers used.
if p.From.Type == obj.TYPE_MEM && p.From.Name == obj.NAME_NONE {
info.Regindex |= RtoB(int(p.From.Reg))
}
if p.From.Index != x86.REG_NONE {
info.Regindex |= RtoB(int(p.From.Index))
}
if p.To.Type == obj.TYPE_MEM && p.To.Name == obj.NAME_NONE {
info.Regindex |= RtoB(int(p.To.Reg))
}
if p.To.Index != x86.REG_NONE {
info.Regindex |= RtoB(int(p.To.Index))
}
if gc.Ctxt.Flag_dynlink {
// When -dynlink is passed, many operations on external names (and
// also calling duffzero/duffcopy) use R15 as a scratch register.
if p.As == x86.ALEAQ || info.Flags == gc.Pseudo || p.As == obj.ACALL || p.As == obj.ARET || p.As == obj.AJMP {
return
}
if p.As == obj.ADUFFZERO || p.As == obj.ADUFFCOPY || (p.From.Name == obj.NAME_EXTERN && !p.From.Sym.Local) || (p.To.Name == obj.NAME_EXTERN && !p.To.Sym.Local) {
info.Reguse |= R15
info.Regset |= R15
return
}
}
}