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
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
| //===- AArch64SchedPredicates.td - AArch64 Sched Preds -----*- tablegen -*-===//
//
// 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 defines scheduling predicate definitions that are used by the
// AArch64 subtargets.
//
//===----------------------------------------------------------------------===//
// Function mappers.
// Check the extension type in arithmetic instructions.
let FunctionMapper = "AArch64_AM::getArithExtendType" in {
def CheckExtUXTB : CheckImmOperand_s<3, "AArch64_AM::UXTB">;
def CheckExtUXTH : CheckImmOperand_s<3, "AArch64_AM::UXTH">;
def CheckExtUXTW : CheckImmOperand_s<3, "AArch64_AM::UXTW">;
def CheckExtUXTX : CheckImmOperand_s<3, "AArch64_AM::UXTX">;
def CheckExtSXTB : CheckImmOperand_s<3, "AArch64_AM::SXTB">;
def CheckExtSXTH : CheckImmOperand_s<3, "AArch64_AM::SXTH">;
def CheckExtSXTW : CheckImmOperand_s<3, "AArch64_AM::SXTW">;
def CheckExtSXTX : CheckImmOperand_s<3, "AArch64_AM::SXTX">;
}
// Check for shifting in extended arithmetic instructions.
foreach I = {0-3} in {
let FunctionMapper = "AArch64_AM::getArithShiftValue" in
def CheckExtBy#I : CheckImmOperand<3, I>;
}
// Check the extension type in the register offset addressing mode.
let FunctionMapper = "AArch64_AM::getMemExtendType" in {
def CheckMemExtUXTW : CheckImmOperand_s<3, "AArch64_AM::UXTW">;
def CheckMemExtLSL : CheckImmOperand_s<3, "AArch64_AM::UXTX">;
def CheckMemExtSXTW : CheckImmOperand_s<3, "AArch64_AM::SXTW">;
def CheckMemExtSXTX : CheckImmOperand_s<3, "AArch64_AM::SXTX">;
}
// Check for scaling in the register offset addressing mode.
let FunctionMapper = "AArch64_AM::getMemDoShift" in
def CheckMemScaled : CheckImmOperandSimple<3>;
// Check the shifting type in arithmetic and logic instructions.
let FunctionMapper = "AArch64_AM::getShiftType" in {
def CheckShiftLSL : CheckImmOperand_s<3, "AArch64_AM::LSL">;
def CheckShiftLSR : CheckImmOperand_s<3, "AArch64_AM::LSR">;
def CheckShiftASR : CheckImmOperand_s<3, "AArch64_AM::ASR">;
def CheckShiftROR : CheckImmOperand_s<3, "AArch64_AM::ROR">;
def CheckShiftMSL : CheckImmOperand_s<3, "AArch64_AM::MSL">;
}
// Check for shifting in arithmetic and logic instructions.
foreach I = {0-3, 8} in {
let FunctionMapper = "AArch64_AM::getShiftValue" in
def CheckShiftBy#I : CheckImmOperand<3, I>;
}
// Generic predicates.
// Identify whether an instruction is the 64-bit NEON form based on its result.
def CheckDForm : CheckAll<[CheckIsRegOperand<0>,
CheckAny<[CheckRegOperand<0, D0>,
CheckRegOperand<0, D1>,
CheckRegOperand<0, D2>,
CheckRegOperand<0, D3>,
CheckRegOperand<0, D4>,
CheckRegOperand<0, D5>,
CheckRegOperand<0, D6>,
CheckRegOperand<0, D7>,
CheckRegOperand<0, D8>,
CheckRegOperand<0, D9>,
CheckRegOperand<0, D10>,
CheckRegOperand<0, D11>,
CheckRegOperand<0, D12>,
CheckRegOperand<0, D13>,
CheckRegOperand<0, D14>,
CheckRegOperand<0, D15>,
CheckRegOperand<0, D16>,
CheckRegOperand<0, D17>,
CheckRegOperand<0, D18>,
CheckRegOperand<0, D19>,
CheckRegOperand<0, D20>,
CheckRegOperand<0, D21>,
CheckRegOperand<0, D22>,
CheckRegOperand<0, D23>,
CheckRegOperand<0, D24>,
CheckRegOperand<0, D25>,
CheckRegOperand<0, D26>,
CheckRegOperand<0, D27>,
CheckRegOperand<0, D28>,
CheckRegOperand<0, D29>,
CheckRegOperand<0, D30>,
CheckRegOperand<0, D31>]>]>;
// Identify whether an instruction is the 128-bit NEON form based on its result.
def CheckQForm : CheckAll<[CheckIsRegOperand<0>,
CheckAny<[CheckRegOperand<0, Q0>,
CheckRegOperand<0, Q1>,
CheckRegOperand<0, Q2>,
CheckRegOperand<0, Q3>,
CheckRegOperand<0, Q4>,
CheckRegOperand<0, Q5>,
CheckRegOperand<0, Q6>,
CheckRegOperand<0, Q7>,
CheckRegOperand<0, Q8>,
CheckRegOperand<0, Q9>,
CheckRegOperand<0, Q10>,
CheckRegOperand<0, Q11>,
CheckRegOperand<0, Q12>,
CheckRegOperand<0, Q13>,
CheckRegOperand<0, Q14>,
CheckRegOperand<0, Q15>,
CheckRegOperand<0, Q16>,
CheckRegOperand<0, Q17>,
CheckRegOperand<0, Q18>,
CheckRegOperand<0, Q19>,
CheckRegOperand<0, Q20>,
CheckRegOperand<0, Q21>,
CheckRegOperand<0, Q22>,
CheckRegOperand<0, Q23>,
CheckRegOperand<0, Q24>,
CheckRegOperand<0, Q25>,
CheckRegOperand<0, Q26>,
CheckRegOperand<0, Q27>,
CheckRegOperand<0, Q28>,
CheckRegOperand<0, Q29>,
CheckRegOperand<0, Q30>,
CheckRegOperand<0, Q31>]>]>;
// Identify arithmetic instructions with extend.
def IsArithExtOp : CheckOpcode<[ADDWrx, ADDXrx, ADDSWrx, ADDSXrx,
SUBWrx, SUBXrx, SUBSWrx, SUBSXrx,
ADDXrx64, ADDSXrx64,
SUBXrx64, SUBSXrx64]>;
// Identify arithmetic immediate instructions.
def IsArithImmOp : CheckOpcode<[ADDWri, ADDXri, ADDSWri, ADDSXri,
SUBWri, SUBXri, SUBSWri, SUBSXri]>;
// Identify arithmetic instructions with shift.
def IsArithShiftOp : CheckOpcode<[ADDWrs, ADDXrs, ADDSWrs, ADDSXrs,
SUBWrs, SUBXrs, SUBSWrs, SUBSXrs]>;
// Identify arithmetic instructions without shift.
def IsArithUnshiftOp : CheckOpcode<[ADDWrr, ADDXrr, ADDSWrr, ADDSXrr,
SUBWrr, SUBXrr, SUBSWrr, SUBSXrr]>;
// Identify logic immediate instructions.
def IsLogicImmOp : CheckOpcode<[ANDWri, ANDXri,
EORWri, EORXri,
ORRWri, ORRXri]>;
// Identify logic instructions with shift.
def IsLogicShiftOp : CheckOpcode<[ANDWrs, ANDXrs, ANDSWrs, ANDSXrs,
BICWrs, BICXrs, BICSWrs, BICSXrs,
EONWrs, EONXrs,
EORWrs, EORXrs,
ORNWrs, ORNXrs,
ORRWrs, ORRXrs]>;
// Identify logic instructions without shift.
def IsLogicUnshiftOp : CheckOpcode<[ANDWrr, ANDXrr, ANDSWrr, ANDSXrr,
BICWrr, BICXrr, BICSWrr, BICSXrr,
EONWrr, EONXrr,
EORWrr, EORXrr,
ORNWrr, ORNXrr,
ORRWrr, ORRXrr]>;
// Identify arithmetic and logic immediate instructions.
def IsArithLogicImmOp : CheckOpcode<!listconcat(IsArithImmOp.ValidOpcodes,
IsLogicImmOp.ValidOpcodes)>;
// Identify arithmetic and logic instructions with shift.
def IsArithLogicShiftOp : CheckOpcode<!listconcat(IsArithShiftOp.ValidOpcodes,
IsLogicShiftOp.ValidOpcodes)>;
// Identify arithmetic and logic instructions without shift.
def IsArithLogicUnshiftOp : CheckOpcode<!listconcat(IsArithUnshiftOp.ValidOpcodes,
IsLogicUnshiftOp.ValidOpcodes)>;
// Identify whether an instruction is an ASIMD
// load using the post index addressing mode.
def IsLoadASIMDPostOp : CheckOpcode<[LD1Onev8b_POST, LD1Onev4h_POST, LD1Onev2s_POST, LD1Onev1d_POST,
LD1Onev16b_POST, LD1Onev8h_POST, LD1Onev4s_POST, LD1Onev2d_POST,
LD1Twov8b_POST, LD1Twov4h_POST, LD1Twov2s_POST, LD1Twov1d_POST,
LD1Twov16b_POST, LD1Twov8h_POST, LD1Twov4s_POST, LD1Twov2d_POST,
LD1Threev8b_POST, LD1Threev4h_POST, LD1Threev2s_POST, LD1Threev1d_POST,
LD1Threev16b_POST, LD1Threev8h_POST, LD1Threev4s_POST, LD1Threev2d_POST,
LD1Fourv8b_POST, LD1Fourv4h_POST, LD1Fourv2s_POST, LD1Fourv1d_POST,
LD1Fourv16b_POST, LD1Fourv8h_POST, LD1Fourv4s_POST, LD1Fourv2d_POST,
LD1i8_POST, LD1i16_POST, LD1i32_POST, LD1i64_POST,
LD1Rv8b_POST, LD1Rv4h_POST, LD1Rv2s_POST, LD1Rv1d_POST,
LD1Rv16b_POST, LD1Rv8h_POST, LD1Rv4s_POST, LD1Rv2d_POST,
LD2Twov8b_POST, LD2Twov4h_POST, LD2Twov2s_POST,
LD2Twov16b_POST, LD2Twov8h_POST, LD2Twov4s_POST, LD2Twov2d_POST,
LD2i8_POST, LD2i16_POST, LD2i32_POST, LD2i64_POST,
LD2Rv8b_POST, LD2Rv4h_POST, LD2Rv2s_POST, LD2Rv1d_POST,
LD2Rv16b_POST, LD2Rv8h_POST, LD2Rv4s_POST, LD2Rv2d_POST,
LD3Threev8b_POST, LD3Threev4h_POST, LD3Threev2s_POST,
LD3Threev16b_POST, LD3Threev8h_POST, LD3Threev4s_POST, LD3Threev2d_POST,
LD3i8_POST, LD3i16_POST, LD3i32_POST, LD3i64_POST,
LD3Rv8b_POST, LD3Rv4h_POST, LD3Rv2s_POST, LD3Rv1d_POST,
LD3Rv16b_POST, LD3Rv8h_POST, LD3Rv4s_POST, LD3Rv2d_POST,
LD4Fourv8b_POST, LD4Fourv4h_POST, LD4Fourv2s_POST,
LD4Fourv16b_POST, LD4Fourv8h_POST, LD4Fourv4s_POST, LD4Fourv2d_POST,
LD4i8_POST, LD4i16_POST, LD4i32_POST, LD4i64_POST,
LD4Rv8b_POST, LD4Rv4h_POST, LD4Rv2s_POST, LD4Rv1d_POST,
LD4Rv16b_POST, LD4Rv8h_POST, LD4Rv4s_POST, LD4Rv2d_POST]>;
// Identify whether an instruction is an ASIMD
// store using the post index addressing mode.
def IsStoreASIMDPostOp : CheckOpcode<[ST1Onev8b_POST, ST1Onev4h_POST, ST1Onev2s_POST, ST1Onev1d_POST,
ST1Onev16b_POST, ST1Onev8h_POST, ST1Onev4s_POST, ST1Onev2d_POST,
ST1Twov8b_POST, ST1Twov4h_POST, ST1Twov2s_POST, ST1Twov1d_POST,
ST1Twov16b_POST, ST1Twov8h_POST, ST1Twov4s_POST, ST1Twov2d_POST,
ST1Threev8b_POST, ST1Threev4h_POST, ST1Threev2s_POST, ST1Threev1d_POST,
ST1Threev16b_POST, ST1Threev8h_POST, ST1Threev4s_POST, ST1Threev2d_POST,
ST1Fourv8b_POST, ST1Fourv4h_POST, ST1Fourv2s_POST, ST1Fourv1d_POST,
ST1Fourv16b_POST, ST1Fourv8h_POST, ST1Fourv4s_POST, ST1Fourv2d_POST,
ST1i8_POST, ST1i16_POST, ST1i32_POST, ST1i64_POST,
ST2Twov8b_POST, ST2Twov4h_POST, ST2Twov2s_POST,
ST2Twov16b_POST, ST2Twov8h_POST, ST2Twov4s_POST, ST2Twov2d_POST,
ST2i8_POST, ST2i16_POST, ST2i32_POST, ST2i64_POST,
ST3Threev8b_POST, ST3Threev4h_POST, ST3Threev2s_POST,
ST3Threev16b_POST, ST3Threev8h_POST, ST3Threev4s_POST, ST3Threev2d_POST,
ST3i8_POST, ST3i16_POST, ST3i32_POST, ST3i64_POST,
ST4Fourv8b_POST, ST4Fourv4h_POST, ST4Fourv2s_POST,
ST4Fourv16b_POST, ST4Fourv8h_POST, ST4Fourv4s_POST, ST4Fourv2d_POST,
ST4i8_POST, ST4i16_POST, ST4i32_POST, ST4i64_POST]>;
// Identify whether an instruction is an ASIMD load
// or store using the post index addressing mode.
def IsLoadStoreASIMDPostOp : CheckOpcode<!listconcat(IsLoadASIMDPostOp.ValidOpcodes,
IsStoreASIMDPostOp.ValidOpcodes)>;
// Identify whether an instruction is a load
// using the register offset addressing mode.
def IsLoadRegOffsetOp : CheckOpcode<[PRFMroW, PRFMroX,
LDRBBroW, LDRBBroX,
LDRSBWroW, LDRSBWroX, LDRSBXroW, LDRSBXroX,
LDRHHroW, LDRHHroX,
LDRSHWroW, LDRSHWroX, LDRSHXroW, LDRSHXroX,
LDRWroW, LDRWroX,
LDRSWroW, LDRSWroX,
LDRXroW, LDRXroX,
LDRBroW, LDRBroX,
LDRHroW, LDRHroX,
LDRSroW, LDRSroX,
LDRDroW, LDRDroX]>;
// Identify whether an instruction is a load
// using the register offset addressing mode.
def IsStoreRegOffsetOp : CheckOpcode<[STRBBroW, STRBBroX,
STRHHroW, STRHHroX,
STRWroW, STRWroX,
STRXroW, STRXroX,
STRBroW, STRBroX,
STRHroW, STRHroX,
STRSroW, STRSroX,
STRDroW, STRDroX]>;
// Identify whether an instruction is a load or
// store using the register offset addressing mode.
def IsLoadStoreRegOffsetOp : CheckOpcode<!listconcat(IsLoadRegOffsetOp.ValidOpcodes,
IsStoreRegOffsetOp.ValidOpcodes)>;
// Target predicates.
// Identify an instruction that effectively transfers a register to another.
def IsCopyIdiomFn : TIIPredicate<"isCopyIdiom",
MCOpcodeSwitchStatement<
[// MOV {Rd, SP}, {SP, Rn} =>
// ADD {Rd, SP}, {SP, Rn}, #0
MCOpcodeSwitchCase<
[ADDWri, ADDXri],
MCReturnStatement<
CheckAll<
[CheckIsRegOperand<0>,
CheckIsRegOperand<1>,
CheckAny<
[CheckRegOperand<0, WSP>,
CheckRegOperand<0, SP>,
CheckRegOperand<1, WSP>,
CheckRegOperand<1, SP>]>,
CheckZeroOperand<2>]>>>,
// MOV Rd, Rm =>
// ORR Rd, ZR, Rm, LSL #0
MCOpcodeSwitchCase<
[ORRWrs, ORRXrs],
MCReturnStatement<
CheckAll<
[CheckIsRegOperand<1>,
CheckIsRegOperand<2>,
CheckAny<
[CheckRegOperand<1, WZR>,
CheckRegOperand<1, XZR>]>,
CheckShiftBy0]>>>],
MCReturnStatement<FalsePred>>>;
def IsCopyIdiomPred : MCSchedPredicate<IsCopyIdiomFn>;
// Identify arithmetic instructions with an extended register.
def RegExtendedFn : TIIPredicate<"hasExtendedReg",
MCOpcodeSwitchStatement<
[MCOpcodeSwitchCase<
IsArithExtOp.ValidOpcodes,
MCReturnStatement<
CheckNot<CheckZeroOperand<3>>>>],
MCReturnStatement<FalsePred>>>;
def RegExtendedPred : MCSchedPredicate<RegExtendedFn>;
// Identify arithmetic and logic instructions with a shifted register.
def RegShiftedFn : TIIPredicate<"hasShiftedReg",
MCOpcodeSwitchStatement<
[MCOpcodeSwitchCase<
IsArithLogicShiftOp.ValidOpcodes,
MCReturnStatement<
CheckNot<CheckZeroOperand<3>>>>],
MCReturnStatement<FalsePred>>>;
def RegShiftedPred : MCSchedPredicate<RegShiftedFn>;
// Identify a load or store using the register offset addressing mode
// with an extended or scaled register.
def ScaledIdxFn : TIIPredicate<"isScaledAddr",
MCOpcodeSwitchStatement<
[MCOpcodeSwitchCase<
IsLoadStoreRegOffsetOp.ValidOpcodes,
MCReturnStatement<
CheckAny<[CheckNot<CheckMemExtLSL>,
CheckMemScaled]>>>],
MCReturnStatement<FalsePred>>>;
def ScaledIdxPred : MCSchedPredicate<ScaledIdxFn>;
// Identify an instruction that effectively resets a FP register to zero.
def IsZeroFPIdiomFn : TIIPredicate<"isZeroFPIdiom",
MCOpcodeSwitchStatement<
[// MOVI Vd, #0
MCOpcodeSwitchCase<
[MOVIv8b_ns, MOVIv16b_ns,
MOVID, MOVIv2d_ns],
MCReturnStatement<CheckZeroOperand<1>>>,
// MOVI Vd, #0, LSL #0
MCOpcodeSwitchCase<
[MOVIv4i16, MOVIv8i16,
MOVIv2i32, MOVIv4i32],
MCReturnStatement<
CheckAll<
[CheckZeroOperand<1>,
CheckZeroOperand<2>]>>>],
MCReturnStatement<FalsePred>>>;
def IsZeroFPIdiomPred : MCSchedPredicate<IsZeroFPIdiomFn>;
// Identify an instruction that effectively resets a GP register to zero.
def IsZeroIdiomFn : TIIPredicate<"isZeroIdiom",
MCOpcodeSwitchStatement<
[// ORR Rd, ZR, #0
MCOpcodeSwitchCase<
[ORRWri, ORRXri],
MCReturnStatement<
CheckAll<
[CheckIsRegOperand<1>,
CheckAny<
[CheckRegOperand<1, WZR>,
CheckRegOperand<1, XZR>]>,
CheckZeroOperand<2>]>>>],
MCReturnStatement<FalsePred>>>;
def IsZeroIdiomPred : MCSchedPredicate<IsZeroIdiomFn>;
|