src/compiler/arm64/instruction-scheduler-arm64.cc - Issue 1905883003: [turbofan] Refined cost model for instruction scheduling on arm64.

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Issue 1905883003: [turbofan] Refined cost model for instruction scheduling on arm64. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master

Patch Set: addressed comment Created 4 years, 8 months ago

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1 // Copyright 2014 the V8 project authors. All rights reserved.	1 // Copyright 2014 the V8 project authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style license that can be	2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.	3 // found in the LICENSE file.

4	4

5 #include "src/compiler/instruction-scheduler.h"	5 #include "src/compiler/instruction-scheduler.h"

6	6

7 namespace v8 {	7 namespace v8 {

8 namespace internal {	8 namespace internal {

9 namespace compiler {	9 namespace compiler {

10	10

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169	169

170 UNREACHABLE();	170 UNREACHABLE();

171 return kNoOpcodeFlags;	171 return kNoOpcodeFlags;

172 }	172 }

173	173

174	174

175 int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {	175 int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {

176 // Basic latency modeling for arm64 instructions. They have been determined	176 // Basic latency modeling for arm64 instructions. They have been determined

177 // in an empirical way.	177 // in an empirical way.

178 switch (instr->arch_opcode()) {	178 switch (instr->arch_opcode()) {

179 case kArm64Float32ToFloat64:	179 case kArm64Add:

180 case kArm64Float64ToFloat32:	180 case kArm64Add32:

181 case kArm64Float64ToInt32:	181 case kArm64And:

182 case kArm64Float64ToUint32:	182 case kArm64And32:

183 case kArm64Int32ToFloat64:	183 case kArm64Bic:

184 case kArm64Uint32ToFloat64:	184 case kArm64Bic32:

185 return 3;	185 case kArm64Cmn:

	186 case kArm64Cmn32:

	187 case kArm64Cmp:

	188 case kArm64Cmp32:

	189 case kArm64Eon:

	190 case kArm64Eon32:

	191 case kArm64Eor:

	192 case kArm64Eor32:

	193 case kArm64Not:

	194 case kArm64Not32:

	195 case kArm64Or:

	196 case kArm64Or32:

	197 case kArm64Orn:

	198 case kArm64Orn32:

	199 case kArm64Sub:

	200 case kArm64Sub32:

	201 case kArm64Tst:

	202 case kArm64Tst32:

	203 if (instr->addressing_mode() != kMode_None) {

	204 return 3;

	205 } else {

	206 return 1;

	207 }

186	208

187 case kArm64Float64Add:	209 case kArm64Clz:

188 case kArm64Float64Sub:	210 case kArm64Clz32:

189 return 2;	211 case kArm64Sbfx32:

190	212 case kArm64Sxtb32:

191 case kArm64Float64Mul:	213 case kArm64Sxth32:

192 return 3;	214 case kArm64Sxtw:

193	215 case kArm64Ubfiz32:

194 case kArm64Float64Div:	216 case kArm64Ubfx:

195 return 6;	217 case kArm64Ubfx32:

	218 return 1;

196	219

197 case kArm64Lsl:	220 case kArm64Lsl:

198 case kArm64Lsl32:	221 case kArm64Lsl32:

199 case kArm64Lsr:	222 case kArm64Lsr:

200 case kArm64Lsr32:	223 case kArm64Lsr32:

201 case kArm64Asr:	224 case kArm64Asr:

202 case kArm64Asr32:	225 case kArm64Asr32:

203 case kArm64Ror:	226 case kArm64Ror:

204 case kArm64Ror32:	227 case kArm64Ror32:

205 return 3;	228 return 1;

	229

	230 case kArm64Ldr:

	231 case kArm64LdrD:

	232 case kArm64LdrS:

	233 case kArm64LdrW:

	234 case kArm64Ldrb:

	235 case kArm64Ldrh:

	236 case kArm64Ldrsb:

	237 case kArm64Ldrsh:

	238 return 11;

206	239

207 case kCheckedLoadInt8:	240 case kCheckedLoadInt8:

208 case kCheckedLoadUint8:	241 case kCheckedLoadUint8:

209 case kCheckedLoadInt16:	242 case kCheckedLoadInt16:

210 case kCheckedLoadUint16:	243 case kCheckedLoadUint16:

211 case kCheckedLoadWord32:	244 case kCheckedLoadWord32:

212 case kCheckedLoadWord64:	245 case kCheckedLoadWord64:

213 case kCheckedLoadFloat32:	246 case kCheckedLoadFloat32:

214 case kCheckedLoadFloat64:	247 case kCheckedLoadFloat64:

215 case kArm64LdrS:	248 return 5;

216 case kArm64LdrD:	249

217 case kArm64Ldrb:	250 case kArm64Str:

218 case kArm64Ldrsb:	251 case kArm64StrD:

219 case kArm64Ldrh:	252 case kArm64StrS:

220 case kArm64Ldrsh:	253 case kArm64StrW:

221 case kArm64LdrW:	254 case kArm64Strb:

222 case kArm64Ldr:	255 case kArm64Strh:

	256 return 1;

	257

	258 case kCheckedStoreWord8:

	259 case kCheckedStoreWord16:

	260 case kCheckedStoreWord32:

	261 case kCheckedStoreWord64:

	262 case kCheckedStoreFloat32:

	263 case kCheckedStoreFloat64:

	264 return 1;

	265

	266 case kArm64Madd32:

	267 case kArm64Mneg32:

	268 case kArm64Msub32:

	269 case kArm64Mul32:

	270 return 3;

	271

	272 case kArm64Madd:

	273 case kArm64Mneg:

	274 case kArm64Msub:

	275 case kArm64Mul:

	276 return 5;

	277

	278 case kArm64Idiv32:

	279 case kArm64Udiv32:

	280 return 12;

	281

	282 case kArm64Idiv:

	283 case kArm64Udiv:

	284 return 20;

	285

	286 case kArm64Float32Add:

	287 case kArm64Float32Sub:

	288 case kArm64Float64Add:

	289 case kArm64Float64Sub:

	290 return 5;

	291

	292 case kArm64Float32Abs:

	293 case kArm64Float32Cmp:

	294 case kArm64Float64Abs:

	295 case kArm64Float64Cmp:

	296 case kArm64Float64Neg:

	297 return 3;

	298

	299 case kArm64Float32Div:

	300 case kArm64Float32Sqrt:

	301 return 12;

	302

	303 case kArm64Float64Div:

	304 case kArm64Float64Sqrt:

	305 return 19;

	306

	307 case kArm64Float32RoundDown:

	308 case kArm64Float32RoundTiesEven:

	309 case kArm64Float32RoundTruncate:

	310 case kArm64Float32RoundUp:

	311 case kArm64Float64RoundDown:

	312 case kArm64Float64RoundTiesAway:

	313 case kArm64Float64RoundTiesEven:

	314 case kArm64Float64RoundTruncate:

	315 case kArm64Float64RoundUp:

	316 return 5;

	317

	318 case kArm64Float32ToFloat64:

	319 case kArm64Float64ToFloat32:

	320 case kArm64Float64ToInt32:

	321 case kArm64Float64ToUint32:

	322 case kArm64Float32ToInt64:

	323 case kArm64Float64ToInt64:

	324 case kArm64Float32ToUint64:

	325 case kArm64Float64ToUint64:

	326 case kArm64Int32ToFloat64:

	327 case kArm64Int64ToFloat32:

	328 case kArm64Int64ToFloat64:

	329 case kArm64Uint32ToFloat64:

	330 case kArm64Uint64ToFloat32:

	331 case kArm64Uint64ToFloat64:

223 return 5;	332 return 5;

224	333

225 default:	334 default:

226 return 1;	335 return 2;

227 }	336 }

228 }	337 }

229	338

230 } // namespace compiler	339 } // namespace compiler

231 } // namespace internal	340 } // namespace internal

232 } // namespace v8	341 } // namespace v8

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