src/compiler/arm64/instruction-scheduler-arm64.cc - Issue 1375253002: [WIP][turbofan] Instruction scheduler for Turbofan.

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Issue 1375253002: [WIP][turbofan] Instruction scheduler for Turbofan. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master

Patch Set: Addressed issues and add support for a few other platforms. Created 5 years, 1 month ago

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	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

	3 // found in the LICENSE file.

	4

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

	6

	7 namespace v8 {

	8 namespace internal {

	9 namespace compiler {

	10

	11 int InstructionScheduler::GetTargetInstructionFlags(

	12 const Instruction* instr) const {

	13 switch (instr->arch_opcode()) {

	14 case kArm64Add:

	15 case kArm64Add32:

	16 case kArm64And:

	17 case kArm64And32:

	18 case kArm64Bic:

	19 case kArm64Bic32:

	20 case kArm64Clz:

	21 case kArm64Clz32:

	22 case kArm64Cmp:

	23 case kArm64Cmp32:

	24 case kArm64Cmn:

	25 case kArm64Cmn32:

	26 case kArm64Tst:

	27 case kArm64Tst32:

	28 case kArm64Or:

	29 case kArm64Or32:

	30 case kArm64Orn:

	31 case kArm64Orn32:

	32 case kArm64Eor:

	33 case kArm64Eor32:

	34 case kArm64Eon:

	35 case kArm64Eon32:

	36 case kArm64Sub:

	37 case kArm64Sub32:

	38 case kArm64Mul:

	39 case kArm64Mul32:

	40 case kArm64Smull:

	41 case kArm64Umull:

	42 case kArm64Madd:

	43 case kArm64Madd32:

	44 case kArm64Msub:

	45 case kArm64Msub32:

	46 case kArm64Mneg:

	47 case kArm64Mneg32:

	48 case kArm64Idiv:

	49 case kArm64Idiv32:

	50 case kArm64Udiv:

	51 case kArm64Udiv32:

	52 case kArm64Imod:

	53 case kArm64Imod32:

	54 case kArm64Umod:

	55 case kArm64Umod32:

	56 case kArm64Not:

	57 case kArm64Not32:

	58 case kArm64Lsl:

	59 case kArm64Lsl32:

	60 case kArm64Lsr:

	61 case kArm64Lsr32:

	62 case kArm64Asr:

	63 case kArm64Asr32:

	64 case kArm64Ror:

	65 case kArm64Ror32:

	66 case kArm64Mov32:

	67 case kArm64Sxtb32:

	68 case kArm64Sxth32:

	69 case kArm64Sxtw:

	70 case kArm64Sbfx32:

	71 case kArm64Ubfx:

	72 case kArm64Ubfx32:

	73 case kArm64Ubfiz32:

	74 case kArm64Bfi:

	75 case kArm64Float32Cmp:

	76 case kArm64Float32Add:

	77 case kArm64Float32Sub:

	78 case kArm64Float32Mul:

	79 case kArm64Float32Div:

	80 case kArm64Float32Max:

	81 case kArm64Float32Min:

	82 case kArm64Float32Abs:

	83 case kArm64Float32Sqrt:

	84 case kArm64Float64Cmp:

	85 case kArm64Float64Add:

	86 case kArm64Float64Sub:

	87 case kArm64Float64Mul:

	88 case kArm64Float64Div:

	89 case kArm64Float64Mod:

	90 case kArm64Float64Max:

	91 case kArm64Float64Min:

	92 case kArm64Float64Abs:

	93 case kArm64Float64Neg:

	94 case kArm64Float64Sqrt:

	95 case kArm64Float64RoundDown:

	96 case kArm64Float64RoundTiesAway:

	97 case kArm64Float64RoundTruncate:

	98 case kArm64Float64RoundTiesEven:

	99 case kArm64Float64RoundUp:

	100 case kArm64Float32ToFloat64:

	101 case kArm64Float64ToFloat32:

	102 case kArm64Float64ToInt32:

	103 case kArm64Float64ToUint32:

	104 case kArm64Float64ToInt64:

	105 case kArm64Float64ToUint64:

	106 case kArm64Int32ToFloat64:

	107 case kArm64Int64ToFloat32:

	108 case kArm64Int64ToFloat64:

	109 case kArm64Uint32ToFloat64:

	110 case kArm64Uint64ToFloat32:

	111 case kArm64Uint64ToFloat64:

	112 case kArm64Float64ExtractLowWord32:

	113 case kArm64Float64ExtractHighWord32:

	114 case kArm64Float64InsertLowWord32:

	115 case kArm64Float64InsertHighWord32:

	116 case kArm64Float64MoveU64:

	117 case kArm64U64MoveFloat64:

	118 return kNoOpcodeFlags;

	119

	120 case kArm64TestAndBranch32:

	121 case kArm64TestAndBranch:

	122 case kArm64CompareAndBranch32:

	123 return kIsBlockTerminator;

	124

	125 case kArm64LdrS:

	126 case kArm64LdrD:

	127 case kArm64Ldrb:

	128 case kArm64Ldrsb:

	129 case kArm64Ldrh:

	130 case kArm64Ldrsh:

	131 case kArm64LdrW:

	132 case kArm64Ldr:

	133 return kIsLoadOperation;

	134

	135 case kArm64ClaimForCallArguments:

	136 case kArm64Poke:

	137 case kArm64PokePair:

	138 case kArm64StrS:

	139 case kArm64StrD:

	140 case kArm64Strb:

	141 case kArm64Strh:

	142 case kArm64StrW:

	143 case kArm64Str:

	144 return kHasSideEffect;

	145

	146 #define CASE(Name) case k##Name:

	147 COMMON_ARCH_OPCODE_LIST(CASE)

	148 #undef CASE

	149 // Already covered in architecture independent code.

	150 UNREACHABLE();

	151 }

	152 }

	153

	154

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

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

	157 // in an empirical way.

	158 switch (instr->arch_opcode()) {

	159 case kArm64Float32ToFloat64:

	160 case kArm64Float64ToFloat32:

	161 case kArm64Float64ToInt32:

	162 case kArm64Float64ToUint32:

	163 case kArm64Int32ToFloat64:

	164 case kArm64Uint32ToFloat64:

	165 return 3;

	166

	167 case kArm64Float64Add:

	168 case kArm64Float64Sub:

	169 return 2;

	170

	171 case kArm64Float64Mul:

	172 return 3;

	173

	174 case kArm64Float64Div:

	175 return 6;

	176

	177 case kArm64Lsl:

	178 case kArm64Lsl32:

	179 case kArm64Lsr:

	180 case kArm64Lsr32:

	181 case kArm64Asr:

	182 case kArm64Asr32:

	183 case kArm64Ror:

	184 case kArm64Ror32:

	185 return 3;

	186

	187 case kCheckedLoadInt8:

	188 case kCheckedLoadUint8:

	189 case kCheckedLoadInt16:

	190 case kCheckedLoadUint16:

	191 case kCheckedLoadWord32:

	192 case kCheckedLoadWord64:

	193 case kCheckedLoadFloat32:

	194 case kCheckedLoadFloat64:

	195 case kArm64LdrS:

	196 case kArm64LdrD:

	197 case kArm64Ldrb:

	198 case kArm64Ldrsb:

	199 case kArm64Ldrh:

	200 case kArm64Ldrsh:

	201 case kArm64LdrW:

	202 case kArm64Ldr:

	203 return 5;

	204

	205 default:

	206 return 1;

	207 }

	208 }

	209

	210 } // namespace compiler

	211 } // namespace internal

	212 } // namespace v8

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