Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5 | #include "src/base/adapters.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6 | #include "src/base/bits.h" |
| 7 | #include "src/compiler/instruction-selector-impl.h" |
| 8 | #include "src/compiler/node-matchers.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 9 | #include "src/compiler/node-properties.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 10 | |
| 11 | namespace v8 { |
| 12 | namespace internal { |
| 13 | namespace compiler { |
| 14 | |
| 15 | // Adds Arm-specific methods for generating InstructionOperands. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 16 | class ArmOperandGenerator : public OperandGenerator { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 17 | public: |
| 18 | explicit ArmOperandGenerator(InstructionSelector* selector) |
| 19 | : OperandGenerator(selector) {} |
| 20 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 21 | bool CanBeImmediate(int32_t value) const { |
| 22 | return Assembler::ImmediateFitsAddrMode1Instruction(value); |
| 23 | } |
| 24 | |
| 25 | bool CanBeImmediate(uint32_t value) const { |
| 26 | return CanBeImmediate(bit_cast<int32_t>(value)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 27 | } |
| 28 | |
| 29 | bool CanBeImmediate(Node* node, InstructionCode opcode) { |
| 30 | Int32Matcher m(node); |
| 31 | if (!m.HasValue()) return false; |
| 32 | int32_t value = m.Value(); |
| 33 | switch (ArchOpcodeField::decode(opcode)) { |
| 34 | case kArmAnd: |
| 35 | case kArmMov: |
| 36 | case kArmMvn: |
| 37 | case kArmBic: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 38 | return CanBeImmediate(value) || CanBeImmediate(~value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 39 | |
| 40 | case kArmAdd: |
| 41 | case kArmSub: |
| 42 | case kArmCmp: |
| 43 | case kArmCmn: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 44 | return CanBeImmediate(value) || CanBeImmediate(-value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 45 | |
| 46 | case kArmTst: |
| 47 | case kArmTeq: |
| 48 | case kArmOrr: |
| 49 | case kArmEor: |
| 50 | case kArmRsb: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 51 | return CanBeImmediate(value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 52 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 53 | case kArmVldrF32: |
| 54 | case kArmVstrF32: |
| 55 | case kArmVldrF64: |
| 56 | case kArmVstrF64: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 57 | return value >= -1020 && value <= 1020 && (value % 4) == 0; |
| 58 | |
| 59 | case kArmLdrb: |
| 60 | case kArmLdrsb: |
| 61 | case kArmStrb: |
| 62 | case kArmLdr: |
| 63 | case kArmStr: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 64 | return value >= -4095 && value <= 4095; |
| 65 | |
| 66 | case kArmLdrh: |
| 67 | case kArmLdrsh: |
| 68 | case kArmStrh: |
| 69 | return value >= -255 && value <= 255; |
| 70 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 71 | default: |
| 72 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 73 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 74 | return false; |
| 75 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 76 | }; |
| 77 | |
| 78 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 79 | namespace { |
| 80 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 81 | void VisitRR(InstructionSelector* selector, ArchOpcode opcode, Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 82 | ArmOperandGenerator g(selector); |
| 83 | selector->Emit(opcode, g.DefineAsRegister(node), |
| 84 | g.UseRegister(node->InputAt(0))); |
| 85 | } |
| 86 | |
| 87 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 88 | void VisitRRR(InstructionSelector* selector, ArchOpcode opcode, Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 89 | ArmOperandGenerator g(selector); |
| 90 | selector->Emit(opcode, g.DefineAsRegister(node), |
| 91 | g.UseRegister(node->InputAt(0)), |
| 92 | g.UseRegister(node->InputAt(1))); |
| 93 | } |
| 94 | |
| 95 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 96 | template <IrOpcode::Value kOpcode, int kImmMin, int kImmMax, |
| 97 | AddressingMode kImmMode, AddressingMode kRegMode> |
| 98 | bool TryMatchShift(InstructionSelector* selector, |
| 99 | InstructionCode* opcode_return, Node* node, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 100 | InstructionOperand* value_return, |
| 101 | InstructionOperand* shift_return) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 102 | ArmOperandGenerator g(selector); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 103 | if (node->opcode() == kOpcode) { |
| 104 | Int32BinopMatcher m(node); |
| 105 | *value_return = g.UseRegister(m.left().node()); |
| 106 | if (m.right().IsInRange(kImmMin, kImmMax)) { |
| 107 | *opcode_return |= AddressingModeField::encode(kImmMode); |
| 108 | *shift_return = g.UseImmediate(m.right().node()); |
| 109 | } else { |
| 110 | *opcode_return |= AddressingModeField::encode(kRegMode); |
| 111 | *shift_return = g.UseRegister(m.right().node()); |
| 112 | } |
| 113 | return true; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 114 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 115 | return false; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 119 | bool TryMatchROR(InstructionSelector* selector, InstructionCode* opcode_return, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 120 | Node* node, InstructionOperand* value_return, |
| 121 | InstructionOperand* shift_return) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 122 | return TryMatchShift<IrOpcode::kWord32Ror, 1, 31, kMode_Operand2_R_ROR_I, |
| 123 | kMode_Operand2_R_ROR_R>(selector, opcode_return, node, |
| 124 | value_return, shift_return); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 125 | } |
| 126 | |
| 127 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 128 | bool TryMatchASR(InstructionSelector* selector, InstructionCode* opcode_return, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 129 | Node* node, InstructionOperand* value_return, |
| 130 | InstructionOperand* shift_return) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 131 | return TryMatchShift<IrOpcode::kWord32Sar, 1, 32, kMode_Operand2_R_ASR_I, |
| 132 | kMode_Operand2_R_ASR_R>(selector, opcode_return, node, |
| 133 | value_return, shift_return); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 134 | } |
| 135 | |
| 136 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 137 | bool TryMatchLSL(InstructionSelector* selector, InstructionCode* opcode_return, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 138 | Node* node, InstructionOperand* value_return, |
| 139 | InstructionOperand* shift_return) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 140 | return TryMatchShift<IrOpcode::kWord32Shl, 0, 31, kMode_Operand2_R_LSL_I, |
| 141 | kMode_Operand2_R_LSL_R>(selector, opcode_return, node, |
| 142 | value_return, shift_return); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 143 | } |
| 144 | |
| 145 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 146 | bool TryMatchLSR(InstructionSelector* selector, InstructionCode* opcode_return, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 147 | Node* node, InstructionOperand* value_return, |
| 148 | InstructionOperand* shift_return) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 149 | return TryMatchShift<IrOpcode::kWord32Shr, 1, 32, kMode_Operand2_R_LSR_I, |
| 150 | kMode_Operand2_R_LSR_R>(selector, opcode_return, node, |
| 151 | value_return, shift_return); |
| 152 | } |
| 153 | |
| 154 | |
| 155 | bool TryMatchShift(InstructionSelector* selector, |
| 156 | InstructionCode* opcode_return, Node* node, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 157 | InstructionOperand* value_return, |
| 158 | InstructionOperand* shift_return) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 159 | return ( |
| 160 | TryMatchASR(selector, opcode_return, node, value_return, shift_return) || |
| 161 | TryMatchLSL(selector, opcode_return, node, value_return, shift_return) || |
| 162 | TryMatchLSR(selector, opcode_return, node, value_return, shift_return) || |
| 163 | TryMatchROR(selector, opcode_return, node, value_return, shift_return)); |
| 164 | } |
| 165 | |
| 166 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 167 | bool TryMatchImmediateOrShift(InstructionSelector* selector, |
| 168 | InstructionCode* opcode_return, Node* node, |
| 169 | size_t* input_count_return, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 170 | InstructionOperand* inputs) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 171 | ArmOperandGenerator g(selector); |
| 172 | if (g.CanBeImmediate(node, *opcode_return)) { |
| 173 | *opcode_return |= AddressingModeField::encode(kMode_Operand2_I); |
| 174 | inputs[0] = g.UseImmediate(node); |
| 175 | *input_count_return = 1; |
| 176 | return true; |
| 177 | } |
| 178 | if (TryMatchShift(selector, opcode_return, node, &inputs[0], &inputs[1])) { |
| 179 | *input_count_return = 2; |
| 180 | return true; |
| 181 | } |
| 182 | return false; |
| 183 | } |
| 184 | |
| 185 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 186 | void VisitBinop(InstructionSelector* selector, Node* node, |
| 187 | InstructionCode opcode, InstructionCode reverse_opcode, |
| 188 | FlagsContinuation* cont) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 189 | ArmOperandGenerator g(selector); |
| 190 | Int32BinopMatcher m(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 191 | InstructionOperand inputs[5]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 192 | size_t input_count = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 193 | InstructionOperand outputs[2]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 194 | size_t output_count = 0; |
| 195 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 196 | if (m.left().node() == m.right().node()) { |
| 197 | // If both inputs refer to the same operand, enforce allocating a register |
| 198 | // for both of them to ensure that we don't end up generating code like |
| 199 | // this: |
| 200 | // |
| 201 | // mov r0, r1, asr #16 |
| 202 | // adds r0, r0, r1, asr #16 |
| 203 | // bvs label |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 204 | InstructionOperand const input = g.UseRegister(m.left().node()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 205 | opcode |= AddressingModeField::encode(kMode_Operand2_R); |
| 206 | inputs[input_count++] = input; |
| 207 | inputs[input_count++] = input; |
| 208 | } else if (TryMatchImmediateOrShift(selector, &opcode, m.right().node(), |
| 209 | &input_count, &inputs[1])) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 210 | inputs[0] = g.UseRegister(m.left().node()); |
| 211 | input_count++; |
| 212 | } else if (TryMatchImmediateOrShift(selector, &reverse_opcode, |
| 213 | m.left().node(), &input_count, |
| 214 | &inputs[1])) { |
| 215 | inputs[0] = g.UseRegister(m.right().node()); |
| 216 | opcode = reverse_opcode; |
| 217 | input_count++; |
| 218 | } else { |
| 219 | opcode |= AddressingModeField::encode(kMode_Operand2_R); |
| 220 | inputs[input_count++] = g.UseRegister(m.left().node()); |
| 221 | inputs[input_count++] = g.UseRegister(m.right().node()); |
| 222 | } |
| 223 | |
| 224 | if (cont->IsBranch()) { |
| 225 | inputs[input_count++] = g.Label(cont->true_block()); |
| 226 | inputs[input_count++] = g.Label(cont->false_block()); |
| 227 | } |
| 228 | |
| 229 | outputs[output_count++] = g.DefineAsRegister(node); |
| 230 | if (cont->IsSet()) { |
| 231 | outputs[output_count++] = g.DefineAsRegister(cont->result()); |
| 232 | } |
| 233 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 234 | DCHECK_NE(0u, input_count); |
| 235 | DCHECK_NE(0u, output_count); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 236 | DCHECK_GE(arraysize(inputs), input_count); |
| 237 | DCHECK_GE(arraysize(outputs), output_count); |
| 238 | DCHECK_NE(kMode_None, AddressingModeField::decode(opcode)); |
| 239 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 240 | selector->Emit(cont->Encode(opcode), output_count, outputs, input_count, |
| 241 | inputs); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 242 | } |
| 243 | |
| 244 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 245 | void VisitBinop(InstructionSelector* selector, Node* node, |
| 246 | InstructionCode opcode, InstructionCode reverse_opcode) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 247 | FlagsContinuation cont; |
| 248 | VisitBinop(selector, node, opcode, reverse_opcode, &cont); |
| 249 | } |
| 250 | |
| 251 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 252 | void EmitDiv(InstructionSelector* selector, ArchOpcode div_opcode, |
| 253 | ArchOpcode f64i32_opcode, ArchOpcode i32f64_opcode, |
| 254 | InstructionOperand result_operand, InstructionOperand left_operand, |
| 255 | InstructionOperand right_operand) { |
| 256 | ArmOperandGenerator g(selector); |
| 257 | if (selector->IsSupported(SUDIV)) { |
| 258 | selector->Emit(div_opcode, result_operand, left_operand, right_operand); |
| 259 | return; |
| 260 | } |
| 261 | InstructionOperand left_double_operand = g.TempDoubleRegister(); |
| 262 | InstructionOperand right_double_operand = g.TempDoubleRegister(); |
| 263 | InstructionOperand result_double_operand = g.TempDoubleRegister(); |
| 264 | selector->Emit(f64i32_opcode, left_double_operand, left_operand); |
| 265 | selector->Emit(f64i32_opcode, right_double_operand, right_operand); |
| 266 | selector->Emit(kArmVdivF64, result_double_operand, left_double_operand, |
| 267 | right_double_operand); |
| 268 | selector->Emit(i32f64_opcode, result_operand, result_double_operand); |
| 269 | } |
| 270 | |
| 271 | |
| 272 | void VisitDiv(InstructionSelector* selector, Node* node, ArchOpcode div_opcode, |
| 273 | ArchOpcode f64i32_opcode, ArchOpcode i32f64_opcode) { |
| 274 | ArmOperandGenerator g(selector); |
| 275 | Int32BinopMatcher m(node); |
| 276 | EmitDiv(selector, div_opcode, f64i32_opcode, i32f64_opcode, |
| 277 | g.DefineAsRegister(node), g.UseRegister(m.left().node()), |
| 278 | g.UseRegister(m.right().node())); |
| 279 | } |
| 280 | |
| 281 | |
| 282 | void VisitMod(InstructionSelector* selector, Node* node, ArchOpcode div_opcode, |
| 283 | ArchOpcode f64i32_opcode, ArchOpcode i32f64_opcode) { |
| 284 | ArmOperandGenerator g(selector); |
| 285 | Int32BinopMatcher m(node); |
| 286 | InstructionOperand div_operand = g.TempRegister(); |
| 287 | InstructionOperand result_operand = g.DefineAsRegister(node); |
| 288 | InstructionOperand left_operand = g.UseRegister(m.left().node()); |
| 289 | InstructionOperand right_operand = g.UseRegister(m.right().node()); |
| 290 | EmitDiv(selector, div_opcode, f64i32_opcode, i32f64_opcode, div_operand, |
| 291 | left_operand, right_operand); |
| 292 | if (selector->IsSupported(MLS)) { |
| 293 | selector->Emit(kArmMls, result_operand, div_operand, right_operand, |
| 294 | left_operand); |
| 295 | } else { |
| 296 | InstructionOperand mul_operand = g.TempRegister(); |
| 297 | selector->Emit(kArmMul, mul_operand, div_operand, right_operand); |
| 298 | selector->Emit(kArmSub, result_operand, left_operand, mul_operand); |
| 299 | } |
| 300 | } |
| 301 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 302 | } // namespace |
| 303 | |
| 304 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 305 | void InstructionSelector::VisitLoad(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 306 | LoadRepresentation load_rep = LoadRepresentationOf(node->op()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 307 | ArmOperandGenerator g(this); |
| 308 | Node* base = node->InputAt(0); |
| 309 | Node* index = node->InputAt(1); |
| 310 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 311 | ArchOpcode opcode = kArchNop; |
| 312 | switch (load_rep.representation()) { |
| 313 | case MachineRepresentation::kFloat32: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 314 | opcode = kArmVldrF32; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 315 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 316 | case MachineRepresentation::kFloat64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 317 | opcode = kArmVldrF64; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 318 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 319 | case MachineRepresentation::kBit: // Fall through. |
| 320 | case MachineRepresentation::kWord8: |
| 321 | opcode = load_rep.IsUnsigned() ? kArmLdrb : kArmLdrsb; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 322 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 323 | case MachineRepresentation::kWord16: |
| 324 | opcode = load_rep.IsUnsigned() ? kArmLdrh : kArmLdrsh; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 325 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 326 | case MachineRepresentation::kTagged: // Fall through. |
| 327 | case MachineRepresentation::kWord32: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 328 | opcode = kArmLdr; |
| 329 | break; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 330 | case MachineRepresentation::kWord64: // Fall through. |
| 331 | case MachineRepresentation::kSimd128: // Fall through. |
| 332 | case MachineRepresentation::kNone: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 333 | UNREACHABLE(); |
| 334 | return; |
| 335 | } |
| 336 | |
| 337 | if (g.CanBeImmediate(index, opcode)) { |
| 338 | Emit(opcode | AddressingModeField::encode(kMode_Offset_RI), |
| 339 | g.DefineAsRegister(node), g.UseRegister(base), g.UseImmediate(index)); |
| 340 | } else { |
| 341 | Emit(opcode | AddressingModeField::encode(kMode_Offset_RR), |
| 342 | g.DefineAsRegister(node), g.UseRegister(base), g.UseRegister(index)); |
| 343 | } |
| 344 | } |
| 345 | |
| 346 | |
| 347 | void InstructionSelector::VisitStore(Node* node) { |
| 348 | ArmOperandGenerator g(this); |
| 349 | Node* base = node->InputAt(0); |
| 350 | Node* index = node->InputAt(1); |
| 351 | Node* value = node->InputAt(2); |
| 352 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 353 | StoreRepresentation store_rep = StoreRepresentationOf(node->op()); |
| 354 | WriteBarrierKind write_barrier_kind = store_rep.write_barrier_kind(); |
| 355 | MachineRepresentation rep = store_rep.representation(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 356 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 357 | if (write_barrier_kind != kNoWriteBarrier) { |
| 358 | DCHECK_EQ(MachineRepresentation::kTagged, rep); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 359 | AddressingMode addressing_mode; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 360 | InstructionOperand inputs[3]; |
| 361 | size_t input_count = 0; |
| 362 | inputs[input_count++] = g.UseUniqueRegister(base); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 363 | // OutOfLineRecordWrite uses the index in an 'add' instruction as well as |
| 364 | // for the store itself, so we must check compatibility with both. |
| 365 | if (g.CanBeImmediate(index, kArmAdd) && g.CanBeImmediate(index, kArmStr)) { |
| 366 | inputs[input_count++] = g.UseImmediate(index); |
| 367 | addressing_mode = kMode_Offset_RI; |
| 368 | } else { |
| 369 | inputs[input_count++] = g.UseUniqueRegister(index); |
| 370 | addressing_mode = kMode_Offset_RR; |
| 371 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 372 | inputs[input_count++] = (write_barrier_kind == kMapWriteBarrier) |
| 373 | ? g.UseRegister(value) |
| 374 | : g.UseUniqueRegister(value); |
| 375 | RecordWriteMode record_write_mode = RecordWriteMode::kValueIsAny; |
| 376 | switch (write_barrier_kind) { |
| 377 | case kNoWriteBarrier: |
| 378 | UNREACHABLE(); |
| 379 | break; |
| 380 | case kMapWriteBarrier: |
| 381 | record_write_mode = RecordWriteMode::kValueIsMap; |
| 382 | break; |
| 383 | case kPointerWriteBarrier: |
| 384 | record_write_mode = RecordWriteMode::kValueIsPointer; |
| 385 | break; |
| 386 | case kFullWriteBarrier: |
| 387 | record_write_mode = RecordWriteMode::kValueIsAny; |
| 388 | break; |
| 389 | } |
| 390 | InstructionOperand temps[] = {g.TempRegister(), g.TempRegister()}; |
| 391 | size_t const temp_count = arraysize(temps); |
| 392 | InstructionCode code = kArchStoreWithWriteBarrier; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 393 | code |= AddressingModeField::encode(addressing_mode); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 394 | code |= MiscField::encode(static_cast<int>(record_write_mode)); |
| 395 | Emit(code, 0, nullptr, input_count, inputs, temp_count, temps); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 396 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 397 | ArchOpcode opcode = kArchNop; |
| 398 | switch (rep) { |
| 399 | case MachineRepresentation::kFloat32: |
| 400 | opcode = kArmVstrF32; |
| 401 | break; |
| 402 | case MachineRepresentation::kFloat64: |
| 403 | opcode = kArmVstrF64; |
| 404 | break; |
| 405 | case MachineRepresentation::kBit: // Fall through. |
| 406 | case MachineRepresentation::kWord8: |
| 407 | opcode = kArmStrb; |
| 408 | break; |
| 409 | case MachineRepresentation::kWord16: |
| 410 | opcode = kArmStrh; |
| 411 | break; |
| 412 | case MachineRepresentation::kTagged: // Fall through. |
| 413 | case MachineRepresentation::kWord32: |
| 414 | opcode = kArmStr; |
| 415 | break; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 416 | case MachineRepresentation::kWord64: // Fall through. |
| 417 | case MachineRepresentation::kSimd128: // Fall through. |
| 418 | case MachineRepresentation::kNone: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 419 | UNREACHABLE(); |
| 420 | return; |
| 421 | } |
| 422 | |
| 423 | if (g.CanBeImmediate(index, opcode)) { |
| 424 | Emit(opcode | AddressingModeField::encode(kMode_Offset_RI), g.NoOutput(), |
| 425 | g.UseRegister(base), g.UseImmediate(index), g.UseRegister(value)); |
| 426 | } else { |
| 427 | Emit(opcode | AddressingModeField::encode(kMode_Offset_RR), g.NoOutput(), |
| 428 | g.UseRegister(base), g.UseRegister(index), g.UseRegister(value)); |
| 429 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 430 | } |
| 431 | } |
| 432 | |
| 433 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 434 | void InstructionSelector::VisitCheckedLoad(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 435 | CheckedLoadRepresentation load_rep = CheckedLoadRepresentationOf(node->op()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 436 | ArmOperandGenerator g(this); |
| 437 | Node* const buffer = node->InputAt(0); |
| 438 | Node* const offset = node->InputAt(1); |
| 439 | Node* const length = node->InputAt(2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 440 | ArchOpcode opcode = kArchNop; |
| 441 | switch (load_rep.representation()) { |
| 442 | case MachineRepresentation::kWord8: |
| 443 | opcode = load_rep.IsSigned() ? kCheckedLoadInt8 : kCheckedLoadUint8; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 444 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 445 | case MachineRepresentation::kWord16: |
| 446 | opcode = load_rep.IsSigned() ? kCheckedLoadInt16 : kCheckedLoadUint16; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 447 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 448 | case MachineRepresentation::kWord32: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 449 | opcode = kCheckedLoadWord32; |
| 450 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 451 | case MachineRepresentation::kFloat32: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 452 | opcode = kCheckedLoadFloat32; |
| 453 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 454 | case MachineRepresentation::kFloat64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 455 | opcode = kCheckedLoadFloat64; |
| 456 | break; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 457 | case MachineRepresentation::kBit: // Fall through. |
| 458 | case MachineRepresentation::kTagged: // Fall through. |
| 459 | case MachineRepresentation::kWord64: // Fall through. |
| 460 | case MachineRepresentation::kSimd128: // Fall through. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 461 | case MachineRepresentation::kNone: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 462 | UNREACHABLE(); |
| 463 | return; |
| 464 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 465 | InstructionOperand offset_operand = g.UseRegister(offset); |
| 466 | InstructionOperand length_operand = g.CanBeImmediate(length, kArmCmp) |
| 467 | ? g.UseImmediate(length) |
| 468 | : g.UseRegister(length); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 469 | Emit(opcode | AddressingModeField::encode(kMode_Offset_RR), |
| 470 | g.DefineAsRegister(node), offset_operand, length_operand, |
| 471 | g.UseRegister(buffer), offset_operand); |
| 472 | } |
| 473 | |
| 474 | |
| 475 | void InstructionSelector::VisitCheckedStore(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 476 | MachineRepresentation rep = CheckedStoreRepresentationOf(node->op()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 477 | ArmOperandGenerator g(this); |
| 478 | Node* const buffer = node->InputAt(0); |
| 479 | Node* const offset = node->InputAt(1); |
| 480 | Node* const length = node->InputAt(2); |
| 481 | Node* const value = node->InputAt(3); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 482 | ArchOpcode opcode = kArchNop; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 483 | switch (rep) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 484 | case MachineRepresentation::kWord8: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 485 | opcode = kCheckedStoreWord8; |
| 486 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 487 | case MachineRepresentation::kWord16: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 488 | opcode = kCheckedStoreWord16; |
| 489 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 490 | case MachineRepresentation::kWord32: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 491 | opcode = kCheckedStoreWord32; |
| 492 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 493 | case MachineRepresentation::kFloat32: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 494 | opcode = kCheckedStoreFloat32; |
| 495 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 496 | case MachineRepresentation::kFloat64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 497 | opcode = kCheckedStoreFloat64; |
| 498 | break; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 499 | case MachineRepresentation::kBit: // Fall through. |
| 500 | case MachineRepresentation::kTagged: // Fall through. |
| 501 | case MachineRepresentation::kWord64: // Fall through. |
| 502 | case MachineRepresentation::kSimd128: // Fall through. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 503 | case MachineRepresentation::kNone: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 504 | UNREACHABLE(); |
| 505 | return; |
| 506 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 507 | InstructionOperand offset_operand = g.UseRegister(offset); |
| 508 | InstructionOperand length_operand = g.CanBeImmediate(length, kArmCmp) |
| 509 | ? g.UseImmediate(length) |
| 510 | : g.UseRegister(length); |
| 511 | Emit(opcode | AddressingModeField::encode(kMode_Offset_RR), g.NoOutput(), |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 512 | offset_operand, length_operand, g.UseRegister(value), |
| 513 | g.UseRegister(buffer), offset_operand); |
| 514 | } |
| 515 | |
| 516 | |
| 517 | namespace { |
| 518 | |
| 519 | void EmitBic(InstructionSelector* selector, Node* node, Node* left, |
| 520 | Node* right) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 521 | ArmOperandGenerator g(selector); |
| 522 | InstructionCode opcode = kArmBic; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 523 | InstructionOperand value_operand; |
| 524 | InstructionOperand shift_operand; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 525 | if (TryMatchShift(selector, &opcode, right, &value_operand, &shift_operand)) { |
| 526 | selector->Emit(opcode, g.DefineAsRegister(node), g.UseRegister(left), |
| 527 | value_operand, shift_operand); |
| 528 | return; |
| 529 | } |
| 530 | selector->Emit(opcode | AddressingModeField::encode(kMode_Operand2_R), |
| 531 | g.DefineAsRegister(node), g.UseRegister(left), |
| 532 | g.UseRegister(right)); |
| 533 | } |
| 534 | |
| 535 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 536 | void EmitUbfx(InstructionSelector* selector, Node* node, Node* left, |
| 537 | uint32_t lsb, uint32_t width) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 538 | DCHECK_LE(1u, width); |
| 539 | DCHECK_LE(width, 32u - lsb); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 540 | ArmOperandGenerator g(selector); |
| 541 | selector->Emit(kArmUbfx, g.DefineAsRegister(node), g.UseRegister(left), |
| 542 | g.TempImmediate(lsb), g.TempImmediate(width)); |
| 543 | } |
| 544 | |
| 545 | } // namespace |
| 546 | |
| 547 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 548 | void InstructionSelector::VisitWord32And(Node* node) { |
| 549 | ArmOperandGenerator g(this); |
| 550 | Int32BinopMatcher m(node); |
| 551 | if (m.left().IsWord32Xor() && CanCover(node, m.left().node())) { |
| 552 | Int32BinopMatcher mleft(m.left().node()); |
| 553 | if (mleft.right().Is(-1)) { |
| 554 | EmitBic(this, node, m.right().node(), mleft.left().node()); |
| 555 | return; |
| 556 | } |
| 557 | } |
| 558 | if (m.right().IsWord32Xor() && CanCover(node, m.right().node())) { |
| 559 | Int32BinopMatcher mright(m.right().node()); |
| 560 | if (mright.right().Is(-1)) { |
| 561 | EmitBic(this, node, m.left().node(), mright.left().node()); |
| 562 | return; |
| 563 | } |
| 564 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 565 | if (m.right().HasValue()) { |
| 566 | uint32_t const value = m.right().Value(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 567 | uint32_t width = base::bits::CountPopulation32(value); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 568 | uint32_t leading_zeros = base::bits::CountLeadingZeros32(value); |
| 569 | |
| 570 | // Try to merge SHR operations on the left hand input into this AND. |
| 571 | if (m.left().IsWord32Shr()) { |
| 572 | Int32BinopMatcher mshr(m.left().node()); |
| 573 | if (mshr.right().HasValue()) { |
| 574 | uint32_t const shift = mshr.right().Value(); |
| 575 | |
| 576 | if (((shift == 8) || (shift == 16) || (shift == 24)) && |
| 577 | ((value == 0xff) || (value == 0xffff))) { |
| 578 | // Merge SHR into AND by emitting a UXTB or UXTH instruction with a |
| 579 | // bytewise rotation. |
| 580 | Emit((value == 0xff) ? kArmUxtb : kArmUxth, |
| 581 | g.DefineAsRegister(m.node()), g.UseRegister(mshr.left().node()), |
| 582 | g.TempImmediate(mshr.right().Value())); |
| 583 | return; |
| 584 | } else if (IsSupported(ARMv7) && (width != 0) && |
| 585 | ((leading_zeros + width) == 32)) { |
| 586 | // Merge Shr into And by emitting a UBFX instruction. |
| 587 | DCHECK_EQ(0u, base::bits::CountTrailingZeros32(value)); |
| 588 | if ((1 <= shift) && (shift <= 31)) { |
| 589 | // UBFX cannot extract bits past the register size, however since |
| 590 | // shifting the original value would have introduced some zeros we |
| 591 | // can still use UBFX with a smaller mask and the remaining bits |
| 592 | // will be zeros. |
| 593 | EmitUbfx(this, node, mshr.left().node(), shift, |
| 594 | std::min(width, 32 - shift)); |
| 595 | return; |
| 596 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 597 | } |
| 598 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 599 | } else if (value == 0xffff) { |
| 600 | // Emit UXTH for this AND. We don't bother testing for UXTB, as it's no |
| 601 | // better than AND 0xff for this operation. |
| 602 | Emit(kArmUxth, g.DefineAsRegister(m.node()), |
| 603 | g.UseRegister(m.left().node()), g.TempImmediate(0)); |
| 604 | return; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 605 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 606 | if (g.CanBeImmediate(~value)) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 607 | // Emit BIC for this AND by inverting the immediate value first. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 608 | Emit(kArmBic | AddressingModeField::encode(kMode_Operand2_I), |
| 609 | g.DefineAsRegister(node), g.UseRegister(m.left().node()), |
| 610 | g.TempImmediate(~value)); |
| 611 | return; |
| 612 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 613 | if (!g.CanBeImmediate(value) && IsSupported(ARMv7)) { |
| 614 | // If value has 9 to 23 contiguous set bits, and has the lsb set, we can |
| 615 | // replace this AND with UBFX. Other contiguous bit patterns have already |
| 616 | // been handled by BIC or will be handled by AND. |
| 617 | if ((width != 0) && ((leading_zeros + width) == 32) && |
| 618 | (9 <= leading_zeros) && (leading_zeros <= 23)) { |
| 619 | DCHECK_EQ(0u, base::bits::CountTrailingZeros32(value)); |
| 620 | EmitUbfx(this, node, m.left().node(), 0, width); |
| 621 | return; |
| 622 | } |
| 623 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 624 | width = 32 - width; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 625 | leading_zeros = base::bits::CountLeadingZeros32(~value); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 626 | uint32_t lsb = base::bits::CountTrailingZeros32(~value); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 627 | if ((leading_zeros + width + lsb) == 32) { |
| 628 | // This AND can be replaced with BFC. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 629 | Emit(kArmBfc, g.DefineSameAsFirst(node), g.UseRegister(m.left().node()), |
| 630 | g.TempImmediate(lsb), g.TempImmediate(width)); |
| 631 | return; |
| 632 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 633 | } |
| 634 | } |
| 635 | VisitBinop(this, node, kArmAnd, kArmAnd); |
| 636 | } |
| 637 | |
| 638 | |
| 639 | void InstructionSelector::VisitWord32Or(Node* node) { |
| 640 | VisitBinop(this, node, kArmOrr, kArmOrr); |
| 641 | } |
| 642 | |
| 643 | |
| 644 | void InstructionSelector::VisitWord32Xor(Node* node) { |
| 645 | ArmOperandGenerator g(this); |
| 646 | Int32BinopMatcher m(node); |
| 647 | if (m.right().Is(-1)) { |
| 648 | InstructionCode opcode = kArmMvn; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 649 | InstructionOperand value_operand; |
| 650 | InstructionOperand shift_operand; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 651 | if (TryMatchShift(this, &opcode, m.left().node(), &value_operand, |
| 652 | &shift_operand)) { |
| 653 | Emit(opcode, g.DefineAsRegister(node), value_operand, shift_operand); |
| 654 | return; |
| 655 | } |
| 656 | Emit(opcode | AddressingModeField::encode(kMode_Operand2_R), |
| 657 | g.DefineAsRegister(node), g.UseRegister(m.left().node())); |
| 658 | return; |
| 659 | } |
| 660 | VisitBinop(this, node, kArmEor, kArmEor); |
| 661 | } |
| 662 | |
| 663 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 664 | namespace { |
| 665 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 666 | template <typename TryMatchShift> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 667 | void VisitShift(InstructionSelector* selector, Node* node, |
| 668 | TryMatchShift try_match_shift, FlagsContinuation* cont) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 669 | ArmOperandGenerator g(selector); |
| 670 | InstructionCode opcode = kArmMov; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 671 | InstructionOperand inputs[4]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 672 | size_t input_count = 2; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 673 | InstructionOperand outputs[2]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 674 | size_t output_count = 0; |
| 675 | |
| 676 | CHECK(try_match_shift(selector, &opcode, node, &inputs[0], &inputs[1])); |
| 677 | |
| 678 | if (cont->IsBranch()) { |
| 679 | inputs[input_count++] = g.Label(cont->true_block()); |
| 680 | inputs[input_count++] = g.Label(cont->false_block()); |
| 681 | } |
| 682 | |
| 683 | outputs[output_count++] = g.DefineAsRegister(node); |
| 684 | if (cont->IsSet()) { |
| 685 | outputs[output_count++] = g.DefineAsRegister(cont->result()); |
| 686 | } |
| 687 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 688 | DCHECK_NE(0u, input_count); |
| 689 | DCHECK_NE(0u, output_count); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 690 | DCHECK_GE(arraysize(inputs), input_count); |
| 691 | DCHECK_GE(arraysize(outputs), output_count); |
| 692 | DCHECK_NE(kMode_None, AddressingModeField::decode(opcode)); |
| 693 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 694 | selector->Emit(cont->Encode(opcode), output_count, outputs, input_count, |
| 695 | inputs); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 696 | } |
| 697 | |
| 698 | |
| 699 | template <typename TryMatchShift> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 700 | void VisitShift(InstructionSelector* selector, Node* node, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 701 | TryMatchShift try_match_shift) { |
| 702 | FlagsContinuation cont; |
| 703 | VisitShift(selector, node, try_match_shift, &cont); |
| 704 | } |
| 705 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 706 | } // namespace |
| 707 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 708 | |
| 709 | void InstructionSelector::VisitWord32Shl(Node* node) { |
| 710 | VisitShift(this, node, TryMatchLSL); |
| 711 | } |
| 712 | |
| 713 | |
| 714 | void InstructionSelector::VisitWord32Shr(Node* node) { |
| 715 | ArmOperandGenerator g(this); |
| 716 | Int32BinopMatcher m(node); |
| 717 | if (IsSupported(ARMv7) && m.left().IsWord32And() && |
| 718 | m.right().IsInRange(0, 31)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 719 | uint32_t lsb = m.right().Value(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 720 | Int32BinopMatcher mleft(m.left().node()); |
| 721 | if (mleft.right().HasValue()) { |
| 722 | uint32_t value = (mleft.right().Value() >> lsb) << lsb; |
| 723 | uint32_t width = base::bits::CountPopulation32(value); |
| 724 | uint32_t msb = base::bits::CountLeadingZeros32(value); |
| 725 | if (msb + width + lsb == 32) { |
| 726 | DCHECK_EQ(lsb, base::bits::CountTrailingZeros32(value)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 727 | return EmitUbfx(this, node, mleft.left().node(), lsb, width); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 728 | } |
| 729 | } |
| 730 | } |
| 731 | VisitShift(this, node, TryMatchLSR); |
| 732 | } |
| 733 | |
| 734 | |
| 735 | void InstructionSelector::VisitWord32Sar(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 736 | ArmOperandGenerator g(this); |
| 737 | Int32BinopMatcher m(node); |
| 738 | if (CanCover(m.node(), m.left().node()) && m.left().IsWord32Shl()) { |
| 739 | Int32BinopMatcher mleft(m.left().node()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 740 | if (m.right().HasValue() && mleft.right().HasValue()) { |
| 741 | uint32_t sar = m.right().Value(); |
| 742 | uint32_t shl = mleft.right().Value(); |
| 743 | if ((sar == shl) && (sar == 16)) { |
| 744 | Emit(kArmSxth, g.DefineAsRegister(node), |
| 745 | g.UseRegister(mleft.left().node()), g.TempImmediate(0)); |
| 746 | return; |
| 747 | } else if ((sar == shl) && (sar == 24)) { |
| 748 | Emit(kArmSxtb, g.DefineAsRegister(node), |
| 749 | g.UseRegister(mleft.left().node()), g.TempImmediate(0)); |
| 750 | return; |
| 751 | } else if (IsSupported(ARMv7) && (sar >= shl)) { |
| 752 | Emit(kArmSbfx, g.DefineAsRegister(node), |
| 753 | g.UseRegister(mleft.left().node()), g.TempImmediate(sar - shl), |
| 754 | g.TempImmediate(32 - sar)); |
| 755 | return; |
| 756 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 757 | } |
| 758 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 759 | VisitShift(this, node, TryMatchASR); |
| 760 | } |
| 761 | |
| 762 | |
| 763 | void InstructionSelector::VisitWord32Ror(Node* node) { |
| 764 | VisitShift(this, node, TryMatchROR); |
| 765 | } |
| 766 | |
| 767 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 768 | void InstructionSelector::VisitWord32Clz(Node* node) { |
| 769 | VisitRR(this, kArmClz, node); |
| 770 | } |
| 771 | |
| 772 | |
| 773 | void InstructionSelector::VisitWord32Ctz(Node* node) { UNREACHABLE(); } |
| 774 | |
| 775 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 776 | void InstructionSelector::VisitWord32ReverseBits(Node* node) { |
| 777 | DCHECK(IsSupported(ARMv7)); |
| 778 | VisitRR(this, kArmRbit, node); |
| 779 | } |
| 780 | |
| 781 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 782 | void InstructionSelector::VisitWord32Popcnt(Node* node) { UNREACHABLE(); } |
| 783 | |
| 784 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 785 | void InstructionSelector::VisitInt32Add(Node* node) { |
| 786 | ArmOperandGenerator g(this); |
| 787 | Int32BinopMatcher m(node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 788 | if (CanCover(node, m.left().node())) { |
| 789 | switch (m.left().opcode()) { |
| 790 | case IrOpcode::kInt32Mul: { |
| 791 | Int32BinopMatcher mleft(m.left().node()); |
| 792 | Emit(kArmMla, g.DefineAsRegister(node), |
| 793 | g.UseRegister(mleft.left().node()), |
| 794 | g.UseRegister(mleft.right().node()), |
| 795 | g.UseRegister(m.right().node())); |
| 796 | return; |
| 797 | } |
| 798 | case IrOpcode::kInt32MulHigh: { |
| 799 | Int32BinopMatcher mleft(m.left().node()); |
| 800 | Emit(kArmSmmla, g.DefineAsRegister(node), |
| 801 | g.UseRegister(mleft.left().node()), |
| 802 | g.UseRegister(mleft.right().node()), |
| 803 | g.UseRegister(m.right().node())); |
| 804 | return; |
| 805 | } |
| 806 | case IrOpcode::kWord32And: { |
| 807 | Int32BinopMatcher mleft(m.left().node()); |
| 808 | if (mleft.right().Is(0xff)) { |
| 809 | Emit(kArmUxtab, g.DefineAsRegister(node), |
| 810 | g.UseRegister(m.right().node()), |
| 811 | g.UseRegister(mleft.left().node()), g.TempImmediate(0)); |
| 812 | return; |
| 813 | } else if (mleft.right().Is(0xffff)) { |
| 814 | Emit(kArmUxtah, g.DefineAsRegister(node), |
| 815 | g.UseRegister(m.right().node()), |
| 816 | g.UseRegister(mleft.left().node()), g.TempImmediate(0)); |
| 817 | return; |
| 818 | } |
| 819 | } |
| 820 | case IrOpcode::kWord32Sar: { |
| 821 | Int32BinopMatcher mleft(m.left().node()); |
| 822 | if (CanCover(mleft.node(), mleft.left().node()) && |
| 823 | mleft.left().IsWord32Shl()) { |
| 824 | Int32BinopMatcher mleftleft(mleft.left().node()); |
| 825 | if (mleft.right().Is(24) && mleftleft.right().Is(24)) { |
| 826 | Emit(kArmSxtab, g.DefineAsRegister(node), |
| 827 | g.UseRegister(m.right().node()), |
| 828 | g.UseRegister(mleftleft.left().node()), g.TempImmediate(0)); |
| 829 | return; |
| 830 | } else if (mleft.right().Is(16) && mleftleft.right().Is(16)) { |
| 831 | Emit(kArmSxtah, g.DefineAsRegister(node), |
| 832 | g.UseRegister(m.right().node()), |
| 833 | g.UseRegister(mleftleft.left().node()), g.TempImmediate(0)); |
| 834 | return; |
| 835 | } |
| 836 | } |
| 837 | } |
| 838 | default: |
| 839 | break; |
| 840 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 841 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 842 | if (CanCover(node, m.right().node())) { |
| 843 | switch (m.right().opcode()) { |
| 844 | case IrOpcode::kInt32Mul: { |
| 845 | Int32BinopMatcher mright(m.right().node()); |
| 846 | Emit(kArmMla, g.DefineAsRegister(node), |
| 847 | g.UseRegister(mright.left().node()), |
| 848 | g.UseRegister(mright.right().node()), |
| 849 | g.UseRegister(m.left().node())); |
| 850 | return; |
| 851 | } |
| 852 | case IrOpcode::kInt32MulHigh: { |
| 853 | Int32BinopMatcher mright(m.right().node()); |
| 854 | Emit(kArmSmmla, g.DefineAsRegister(node), |
| 855 | g.UseRegister(mright.left().node()), |
| 856 | g.UseRegister(mright.right().node()), |
| 857 | g.UseRegister(m.left().node())); |
| 858 | return; |
| 859 | } |
| 860 | case IrOpcode::kWord32And: { |
| 861 | Int32BinopMatcher mright(m.right().node()); |
| 862 | if (mright.right().Is(0xff)) { |
| 863 | Emit(kArmUxtab, g.DefineAsRegister(node), |
| 864 | g.UseRegister(m.left().node()), |
| 865 | g.UseRegister(mright.left().node()), g.TempImmediate(0)); |
| 866 | return; |
| 867 | } else if (mright.right().Is(0xffff)) { |
| 868 | Emit(kArmUxtah, g.DefineAsRegister(node), |
| 869 | g.UseRegister(m.left().node()), |
| 870 | g.UseRegister(mright.left().node()), g.TempImmediate(0)); |
| 871 | return; |
| 872 | } |
| 873 | } |
| 874 | case IrOpcode::kWord32Sar: { |
| 875 | Int32BinopMatcher mright(m.right().node()); |
| 876 | if (CanCover(mright.node(), mright.left().node()) && |
| 877 | mright.left().IsWord32Shl()) { |
| 878 | Int32BinopMatcher mrightleft(mright.left().node()); |
| 879 | if (mright.right().Is(24) && mrightleft.right().Is(24)) { |
| 880 | Emit(kArmSxtab, g.DefineAsRegister(node), |
| 881 | g.UseRegister(m.left().node()), |
| 882 | g.UseRegister(mrightleft.left().node()), g.TempImmediate(0)); |
| 883 | return; |
| 884 | } else if (mright.right().Is(16) && mrightleft.right().Is(16)) { |
| 885 | Emit(kArmSxtah, g.DefineAsRegister(node), |
| 886 | g.UseRegister(m.left().node()), |
| 887 | g.UseRegister(mrightleft.left().node()), g.TempImmediate(0)); |
| 888 | return; |
| 889 | } |
| 890 | } |
| 891 | } |
| 892 | default: |
| 893 | break; |
| 894 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 895 | } |
| 896 | VisitBinop(this, node, kArmAdd, kArmAdd); |
| 897 | } |
| 898 | |
| 899 | |
| 900 | void InstructionSelector::VisitInt32Sub(Node* node) { |
| 901 | ArmOperandGenerator g(this); |
| 902 | Int32BinopMatcher m(node); |
| 903 | if (IsSupported(MLS) && m.right().IsInt32Mul() && |
| 904 | CanCover(node, m.right().node())) { |
| 905 | Int32BinopMatcher mright(m.right().node()); |
| 906 | Emit(kArmMls, g.DefineAsRegister(node), g.UseRegister(mright.left().node()), |
| 907 | g.UseRegister(mright.right().node()), g.UseRegister(m.left().node())); |
| 908 | return; |
| 909 | } |
| 910 | VisitBinop(this, node, kArmSub, kArmRsb); |
| 911 | } |
| 912 | |
| 913 | |
| 914 | void InstructionSelector::VisitInt32Mul(Node* node) { |
| 915 | ArmOperandGenerator g(this); |
| 916 | Int32BinopMatcher m(node); |
| 917 | if (m.right().HasValue() && m.right().Value() > 0) { |
| 918 | int32_t value = m.right().Value(); |
| 919 | if (base::bits::IsPowerOfTwo32(value - 1)) { |
| 920 | Emit(kArmAdd | AddressingModeField::encode(kMode_Operand2_R_LSL_I), |
| 921 | g.DefineAsRegister(node), g.UseRegister(m.left().node()), |
| 922 | g.UseRegister(m.left().node()), |
| 923 | g.TempImmediate(WhichPowerOf2(value - 1))); |
| 924 | return; |
| 925 | } |
| 926 | if (value < kMaxInt && base::bits::IsPowerOfTwo32(value + 1)) { |
| 927 | Emit(kArmRsb | AddressingModeField::encode(kMode_Operand2_R_LSL_I), |
| 928 | g.DefineAsRegister(node), g.UseRegister(m.left().node()), |
| 929 | g.UseRegister(m.left().node()), |
| 930 | g.TempImmediate(WhichPowerOf2(value + 1))); |
| 931 | return; |
| 932 | } |
| 933 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 934 | VisitRRR(this, kArmMul, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 935 | } |
| 936 | |
| 937 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 938 | void InstructionSelector::VisitInt32MulHigh(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 939 | VisitRRR(this, kArmSmmul, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 940 | } |
| 941 | |
| 942 | |
| 943 | void InstructionSelector::VisitUint32MulHigh(Node* node) { |
| 944 | ArmOperandGenerator g(this); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 945 | InstructionOperand outputs[] = {g.TempRegister(), g.DefineAsRegister(node)}; |
| 946 | InstructionOperand inputs[] = {g.UseRegister(node->InputAt(0)), |
| 947 | g.UseRegister(node->InputAt(1))}; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 948 | Emit(kArmUmull, arraysize(outputs), outputs, arraysize(inputs), inputs); |
| 949 | } |
| 950 | |
| 951 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 952 | void InstructionSelector::VisitInt32Div(Node* node) { |
| 953 | VisitDiv(this, node, kArmSdiv, kArmVcvtF64S32, kArmVcvtS32F64); |
| 954 | } |
| 955 | |
| 956 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 957 | void InstructionSelector::VisitUint32Div(Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 958 | VisitDiv(this, node, kArmUdiv, kArmVcvtF64U32, kArmVcvtU32F64); |
| 959 | } |
| 960 | |
| 961 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 962 | void InstructionSelector::VisitInt32Mod(Node* node) { |
| 963 | VisitMod(this, node, kArmSdiv, kArmVcvtF64S32, kArmVcvtS32F64); |
| 964 | } |
| 965 | |
| 966 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 967 | void InstructionSelector::VisitUint32Mod(Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 968 | VisitMod(this, node, kArmUdiv, kArmVcvtF64U32, kArmVcvtU32F64); |
| 969 | } |
| 970 | |
| 971 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 972 | void InstructionSelector::VisitChangeFloat32ToFloat64(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 973 | VisitRR(this, kArmVcvtF64F32, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 974 | } |
| 975 | |
| 976 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 977 | void InstructionSelector::VisitRoundInt32ToFloat32(Node* node) { |
| 978 | VisitRR(this, kArmVcvtF32S32, node); |
| 979 | } |
| 980 | |
| 981 | |
| 982 | void InstructionSelector::VisitRoundUint32ToFloat32(Node* node) { |
| 983 | VisitRR(this, kArmVcvtF32U32, node); |
| 984 | } |
| 985 | |
| 986 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 987 | void InstructionSelector::VisitChangeInt32ToFloat64(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 988 | VisitRR(this, kArmVcvtF64S32, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 989 | } |
| 990 | |
| 991 | |
| 992 | void InstructionSelector::VisitChangeUint32ToFloat64(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 993 | VisitRR(this, kArmVcvtF64U32, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 994 | } |
| 995 | |
| 996 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 997 | void InstructionSelector::VisitTruncateFloat32ToInt32(Node* node) { |
| 998 | VisitRR(this, kArmVcvtS32F32, node); |
| 999 | } |
| 1000 | |
| 1001 | |
| 1002 | void InstructionSelector::VisitTruncateFloat32ToUint32(Node* node) { |
| 1003 | VisitRR(this, kArmVcvtU32F32, node); |
| 1004 | } |
| 1005 | |
| 1006 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1007 | void InstructionSelector::VisitChangeFloat64ToInt32(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1008 | VisitRR(this, kArmVcvtS32F64, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1009 | } |
| 1010 | |
| 1011 | |
| 1012 | void InstructionSelector::VisitChangeFloat64ToUint32(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1013 | VisitRR(this, kArmVcvtU32F64, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1014 | } |
| 1015 | |
| 1016 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1017 | void InstructionSelector::VisitTruncateFloat64ToFloat32(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1018 | VisitRR(this, kArmVcvtF32F64, node); |
| 1019 | } |
| 1020 | |
| 1021 | |
| 1022 | void InstructionSelector::VisitTruncateFloat64ToInt32(Node* node) { |
| 1023 | switch (TruncationModeOf(node->op())) { |
| 1024 | case TruncationMode::kJavaScript: |
| 1025 | return VisitRR(this, kArchTruncateDoubleToI, node); |
| 1026 | case TruncationMode::kRoundToZero: |
| 1027 | return VisitRR(this, kArmVcvtS32F64, node); |
| 1028 | } |
| 1029 | UNREACHABLE(); |
| 1030 | } |
| 1031 | |
| 1032 | |
| 1033 | void InstructionSelector::VisitBitcastFloat32ToInt32(Node* node) { |
| 1034 | VisitRR(this, kArmVmovLowU32F64, node); |
| 1035 | } |
| 1036 | |
| 1037 | |
| 1038 | void InstructionSelector::VisitBitcastInt32ToFloat32(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1039 | ArmOperandGenerator g(this); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1040 | Emit(kArmVmovLowF64U32, g.DefineAsRegister(node), |
| 1041 | ImmediateOperand(ImmediateOperand::INLINE, 0), |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1042 | g.UseRegister(node->InputAt(0))); |
| 1043 | } |
| 1044 | |
| 1045 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1046 | void InstructionSelector::VisitFloat32Add(Node* node) { |
| 1047 | ArmOperandGenerator g(this); |
| 1048 | Float32BinopMatcher m(node); |
| 1049 | if (m.left().IsFloat32Mul() && CanCover(node, m.left().node())) { |
| 1050 | Float32BinopMatcher mleft(m.left().node()); |
| 1051 | Emit(kArmVmlaF32, g.DefineSameAsFirst(node), |
| 1052 | g.UseRegister(m.right().node()), g.UseRegister(mleft.left().node()), |
| 1053 | g.UseRegister(mleft.right().node())); |
| 1054 | return; |
| 1055 | } |
| 1056 | if (m.right().IsFloat32Mul() && CanCover(node, m.right().node())) { |
| 1057 | Float32BinopMatcher mright(m.right().node()); |
| 1058 | Emit(kArmVmlaF32, g.DefineSameAsFirst(node), g.UseRegister(m.left().node()), |
| 1059 | g.UseRegister(mright.left().node()), |
| 1060 | g.UseRegister(mright.right().node())); |
| 1061 | return; |
| 1062 | } |
| 1063 | VisitRRR(this, kArmVaddF32, node); |
| 1064 | } |
| 1065 | |
| 1066 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1067 | void InstructionSelector::VisitFloat64Add(Node* node) { |
| 1068 | ArmOperandGenerator g(this); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1069 | Float64BinopMatcher m(node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1070 | if (m.left().IsFloat64Mul() && CanCover(node, m.left().node())) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1071 | Float64BinopMatcher mleft(m.left().node()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1072 | Emit(kArmVmlaF64, g.DefineSameAsFirst(node), |
| 1073 | g.UseRegister(m.right().node()), g.UseRegister(mleft.left().node()), |
| 1074 | g.UseRegister(mleft.right().node())); |
| 1075 | return; |
| 1076 | } |
| 1077 | if (m.right().IsFloat64Mul() && CanCover(node, m.right().node())) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1078 | Float64BinopMatcher mright(m.right().node()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1079 | Emit(kArmVmlaF64, g.DefineSameAsFirst(node), g.UseRegister(m.left().node()), |
| 1080 | g.UseRegister(mright.left().node()), |
| 1081 | g.UseRegister(mright.right().node())); |
| 1082 | return; |
| 1083 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1084 | VisitRRR(this, kArmVaddF64, node); |
| 1085 | } |
| 1086 | |
| 1087 | |
| 1088 | void InstructionSelector::VisitFloat32Sub(Node* node) { |
| 1089 | ArmOperandGenerator g(this); |
| 1090 | Float32BinopMatcher m(node); |
| 1091 | if (m.left().IsMinusZero()) { |
| 1092 | Emit(kArmVnegF32, g.DefineAsRegister(node), |
| 1093 | g.UseRegister(m.right().node())); |
| 1094 | return; |
| 1095 | } |
| 1096 | if (m.right().IsFloat32Mul() && CanCover(node, m.right().node())) { |
| 1097 | Float32BinopMatcher mright(m.right().node()); |
| 1098 | Emit(kArmVmlsF32, g.DefineSameAsFirst(node), g.UseRegister(m.left().node()), |
| 1099 | g.UseRegister(mright.left().node()), |
| 1100 | g.UseRegister(mright.right().node())); |
| 1101 | return; |
| 1102 | } |
| 1103 | VisitRRR(this, kArmVsubF32, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1104 | } |
| 1105 | |
| 1106 | |
| 1107 | void InstructionSelector::VisitFloat64Sub(Node* node) { |
| 1108 | ArmOperandGenerator g(this); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1109 | Float64BinopMatcher m(node); |
| 1110 | if (m.left().IsMinusZero()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1111 | if (m.right().IsFloat64RoundDown() && |
| 1112 | CanCover(m.node(), m.right().node())) { |
| 1113 | if (m.right().InputAt(0)->opcode() == IrOpcode::kFloat64Sub && |
| 1114 | CanCover(m.right().node(), m.right().InputAt(0))) { |
| 1115 | Float64BinopMatcher mright0(m.right().InputAt(0)); |
| 1116 | if (mright0.left().IsMinusZero()) { |
| 1117 | Emit(kArmVrintpF64, g.DefineAsRegister(node), |
| 1118 | g.UseRegister(mright0.right().node())); |
| 1119 | return; |
| 1120 | } |
| 1121 | } |
| 1122 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1123 | Emit(kArmVnegF64, g.DefineAsRegister(node), |
| 1124 | g.UseRegister(m.right().node())); |
| 1125 | return; |
| 1126 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1127 | if (m.right().IsFloat64Mul() && CanCover(node, m.right().node())) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1128 | Float64BinopMatcher mright(m.right().node()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1129 | Emit(kArmVmlsF64, g.DefineSameAsFirst(node), g.UseRegister(m.left().node()), |
| 1130 | g.UseRegister(mright.left().node()), |
| 1131 | g.UseRegister(mright.right().node())); |
| 1132 | return; |
| 1133 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1134 | VisitRRR(this, kArmVsubF64, node); |
| 1135 | } |
| 1136 | |
| 1137 | |
| 1138 | void InstructionSelector::VisitFloat32Mul(Node* node) { |
| 1139 | VisitRRR(this, kArmVmulF32, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1140 | } |
| 1141 | |
| 1142 | |
| 1143 | void InstructionSelector::VisitFloat64Mul(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1144 | VisitRRR(this, kArmVmulF64, node); |
| 1145 | } |
| 1146 | |
| 1147 | |
| 1148 | void InstructionSelector::VisitFloat32Div(Node* node) { |
| 1149 | VisitRRR(this, kArmVdivF32, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1150 | } |
| 1151 | |
| 1152 | |
| 1153 | void InstructionSelector::VisitFloat64Div(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1154 | VisitRRR(this, kArmVdivF64, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1155 | } |
| 1156 | |
| 1157 | |
| 1158 | void InstructionSelector::VisitFloat64Mod(Node* node) { |
| 1159 | ArmOperandGenerator g(this); |
| 1160 | Emit(kArmVmodF64, g.DefineAsFixed(node, d0), g.UseFixed(node->InputAt(0), d0), |
| 1161 | g.UseFixed(node->InputAt(1), d1))->MarkAsCall(); |
| 1162 | } |
| 1163 | |
| 1164 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1165 | void InstructionSelector::VisitFloat32Max(Node* node) { UNREACHABLE(); } |
| 1166 | |
| 1167 | |
| 1168 | void InstructionSelector::VisitFloat64Max(Node* node) { UNREACHABLE(); } |
| 1169 | |
| 1170 | |
| 1171 | void InstructionSelector::VisitFloat32Min(Node* node) { UNREACHABLE(); } |
| 1172 | |
| 1173 | |
| 1174 | void InstructionSelector::VisitFloat64Min(Node* node) { UNREACHABLE(); } |
| 1175 | |
| 1176 | |
| 1177 | void InstructionSelector::VisitFloat32Abs(Node* node) { |
| 1178 | VisitRR(this, kArmVabsF32, node); |
| 1179 | } |
| 1180 | |
| 1181 | |
| 1182 | void InstructionSelector::VisitFloat64Abs(Node* node) { |
| 1183 | VisitRR(this, kArmVabsF64, node); |
| 1184 | } |
| 1185 | |
| 1186 | |
| 1187 | void InstructionSelector::VisitFloat32Sqrt(Node* node) { |
| 1188 | VisitRR(this, kArmVsqrtF32, node); |
| 1189 | } |
| 1190 | |
| 1191 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1192 | void InstructionSelector::VisitFloat64Sqrt(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1193 | VisitRR(this, kArmVsqrtF64, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1194 | } |
| 1195 | |
| 1196 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1197 | void InstructionSelector::VisitFloat32RoundDown(Node* node) { |
| 1198 | VisitRR(this, kArmVrintmF32, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1199 | } |
| 1200 | |
| 1201 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1202 | void InstructionSelector::VisitFloat64RoundDown(Node* node) { |
| 1203 | VisitRR(this, kArmVrintmF64, node); |
| 1204 | } |
| 1205 | |
| 1206 | |
| 1207 | void InstructionSelector::VisitFloat32RoundUp(Node* node) { |
| 1208 | VisitRR(this, kArmVrintpF32, node); |
| 1209 | } |
| 1210 | |
| 1211 | |
| 1212 | void InstructionSelector::VisitFloat64RoundUp(Node* node) { |
| 1213 | VisitRR(this, kArmVrintpF64, node); |
| 1214 | } |
| 1215 | |
| 1216 | |
| 1217 | void InstructionSelector::VisitFloat32RoundTruncate(Node* node) { |
| 1218 | VisitRR(this, kArmVrintzF32, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1219 | } |
| 1220 | |
| 1221 | |
| 1222 | void InstructionSelector::VisitFloat64RoundTruncate(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1223 | VisitRR(this, kArmVrintzF64, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1224 | } |
| 1225 | |
| 1226 | |
| 1227 | void InstructionSelector::VisitFloat64RoundTiesAway(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1228 | VisitRR(this, kArmVrintaF64, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1229 | } |
| 1230 | |
| 1231 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1232 | void InstructionSelector::VisitFloat32RoundTiesEven(Node* node) { |
| 1233 | VisitRR(this, kArmVrintnF32, node); |
| 1234 | } |
| 1235 | |
| 1236 | |
| 1237 | void InstructionSelector::VisitFloat64RoundTiesEven(Node* node) { |
| 1238 | VisitRR(this, kArmVrintnF64, node); |
| 1239 | } |
| 1240 | |
| 1241 | |
| 1242 | void InstructionSelector::EmitPrepareArguments( |
| 1243 | ZoneVector<PushParameter>* arguments, const CallDescriptor* descriptor, |
| 1244 | Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1245 | ArmOperandGenerator g(this); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1246 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1247 | // Prepare for C function call. |
| 1248 | if (descriptor->IsCFunctionCall()) { |
| 1249 | Emit(kArchPrepareCallCFunction | |
| 1250 | MiscField::encode(static_cast<int>(descriptor->CParameterCount())), |
| 1251 | 0, nullptr, 0, nullptr); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1252 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1253 | // Poke any stack arguments. |
| 1254 | for (size_t n = 0; n < arguments->size(); ++n) { |
| 1255 | PushParameter input = (*arguments)[n]; |
| 1256 | if (input.node()) { |
| 1257 | int slot = static_cast<int>(n); |
| 1258 | Emit(kArmPoke | MiscField::encode(slot), g.NoOutput(), |
| 1259 | g.UseRegister(input.node())); |
| 1260 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1261 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1262 | } else { |
| 1263 | // Push any stack arguments. |
| 1264 | for (PushParameter input : base::Reversed(*arguments)) { |
| 1265 | // Skip any alignment holes in pushed nodes. |
| 1266 | if (input.node() == nullptr) continue; |
| 1267 | Emit(kArmPush, g.NoOutput(), g.UseRegister(input.node())); |
| 1268 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1269 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1270 | } |
| 1271 | |
| 1272 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1273 | bool InstructionSelector::IsTailCallAddressImmediate() { return false; } |
| 1274 | |
| 1275 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1276 | namespace { |
| 1277 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1278 | // Shared routine for multiple compare operations. |
| 1279 | void VisitCompare(InstructionSelector* selector, InstructionCode opcode, |
| 1280 | InstructionOperand left, InstructionOperand right, |
| 1281 | FlagsContinuation* cont) { |
| 1282 | ArmOperandGenerator g(selector); |
| 1283 | opcode = cont->Encode(opcode); |
| 1284 | if (cont->IsBranch()) { |
| 1285 | selector->Emit(opcode, g.NoOutput(), left, right, |
| 1286 | g.Label(cont->true_block()), g.Label(cont->false_block())); |
| 1287 | } else { |
| 1288 | DCHECK(cont->IsSet()); |
| 1289 | selector->Emit(opcode, g.DefineAsRegister(cont->result()), left, right); |
| 1290 | } |
| 1291 | } |
| 1292 | |
| 1293 | |
| 1294 | // Shared routine for multiple float32 compare operations. |
| 1295 | void VisitFloat32Compare(InstructionSelector* selector, Node* node, |
| 1296 | FlagsContinuation* cont) { |
| 1297 | ArmOperandGenerator g(selector); |
| 1298 | Float32BinopMatcher m(node); |
| 1299 | if (m.right().Is(0.0f)) { |
| 1300 | VisitCompare(selector, kArmVcmpF32, g.UseRegister(m.left().node()), |
| 1301 | g.UseImmediate(m.right().node()), cont); |
| 1302 | } else if (m.left().Is(0.0f)) { |
| 1303 | cont->Commute(); |
| 1304 | VisitCompare(selector, kArmVcmpF32, g.UseRegister(m.right().node()), |
| 1305 | g.UseImmediate(m.left().node()), cont); |
| 1306 | } else { |
| 1307 | VisitCompare(selector, kArmVcmpF32, g.UseRegister(m.left().node()), |
| 1308 | g.UseRegister(m.right().node()), cont); |
| 1309 | } |
| 1310 | } |
| 1311 | |
| 1312 | |
| 1313 | // Shared routine for multiple float64 compare operations. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1314 | void VisitFloat64Compare(InstructionSelector* selector, Node* node, |
| 1315 | FlagsContinuation* cont) { |
| 1316 | ArmOperandGenerator g(selector); |
| 1317 | Float64BinopMatcher m(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1318 | if (m.right().Is(0.0)) { |
| 1319 | VisitCompare(selector, kArmVcmpF64, g.UseRegister(m.left().node()), |
| 1320 | g.UseImmediate(m.right().node()), cont); |
| 1321 | } else if (m.left().Is(0.0)) { |
| 1322 | cont->Commute(); |
| 1323 | VisitCompare(selector, kArmVcmpF64, g.UseRegister(m.right().node()), |
| 1324 | g.UseImmediate(m.left().node()), cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1325 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1326 | VisitCompare(selector, kArmVcmpF64, g.UseRegister(m.left().node()), |
| 1327 | g.UseRegister(m.right().node()), cont); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1328 | } |
| 1329 | } |
| 1330 | |
| 1331 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1332 | // Shared routine for multiple word compare operations. |
| 1333 | void VisitWordCompare(InstructionSelector* selector, Node* node, |
| 1334 | InstructionCode opcode, FlagsContinuation* cont) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1335 | ArmOperandGenerator g(selector); |
| 1336 | Int32BinopMatcher m(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1337 | InstructionOperand inputs[5]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1338 | size_t input_count = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1339 | InstructionOperand outputs[1]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1340 | size_t output_count = 0; |
| 1341 | |
| 1342 | if (TryMatchImmediateOrShift(selector, &opcode, m.right().node(), |
| 1343 | &input_count, &inputs[1])) { |
| 1344 | inputs[0] = g.UseRegister(m.left().node()); |
| 1345 | input_count++; |
| 1346 | } else if (TryMatchImmediateOrShift(selector, &opcode, m.left().node(), |
| 1347 | &input_count, &inputs[1])) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1348 | if (!node->op()->HasProperty(Operator::kCommutative)) cont->Commute(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1349 | inputs[0] = g.UseRegister(m.right().node()); |
| 1350 | input_count++; |
| 1351 | } else { |
| 1352 | opcode |= AddressingModeField::encode(kMode_Operand2_R); |
| 1353 | inputs[input_count++] = g.UseRegister(m.left().node()); |
| 1354 | inputs[input_count++] = g.UseRegister(m.right().node()); |
| 1355 | } |
| 1356 | |
| 1357 | if (cont->IsBranch()) { |
| 1358 | inputs[input_count++] = g.Label(cont->true_block()); |
| 1359 | inputs[input_count++] = g.Label(cont->false_block()); |
| 1360 | } else { |
| 1361 | DCHECK(cont->IsSet()); |
| 1362 | outputs[output_count++] = g.DefineAsRegister(cont->result()); |
| 1363 | } |
| 1364 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1365 | DCHECK_NE(0u, input_count); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1366 | DCHECK_GE(arraysize(inputs), input_count); |
| 1367 | DCHECK_GE(arraysize(outputs), output_count); |
| 1368 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1369 | selector->Emit(cont->Encode(opcode), output_count, outputs, input_count, |
| 1370 | inputs); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1371 | } |
| 1372 | |
| 1373 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1374 | void VisitWordCompare(InstructionSelector* selector, Node* node, |
| 1375 | FlagsContinuation* cont) { |
| 1376 | VisitWordCompare(selector, node, kArmCmp, cont); |
| 1377 | } |
| 1378 | |
| 1379 | |
| 1380 | // Shared routine for word comparisons against zero. |
| 1381 | void VisitWordCompareZero(InstructionSelector* selector, Node* user, |
| 1382 | Node* value, FlagsContinuation* cont) { |
| 1383 | while (selector->CanCover(user, value)) { |
| 1384 | switch (value->opcode()) { |
| 1385 | case IrOpcode::kWord32Equal: { |
| 1386 | // Combine with comparisons against 0 by simply inverting the |
| 1387 | // continuation. |
| 1388 | Int32BinopMatcher m(value); |
| 1389 | if (m.right().Is(0)) { |
| 1390 | user = value; |
| 1391 | value = m.left().node(); |
| 1392 | cont->Negate(); |
| 1393 | continue; |
| 1394 | } |
| 1395 | cont->OverwriteAndNegateIfEqual(kEqual); |
| 1396 | return VisitWordCompare(selector, value, cont); |
| 1397 | } |
| 1398 | case IrOpcode::kInt32LessThan: |
| 1399 | cont->OverwriteAndNegateIfEqual(kSignedLessThan); |
| 1400 | return VisitWordCompare(selector, value, cont); |
| 1401 | case IrOpcode::kInt32LessThanOrEqual: |
| 1402 | cont->OverwriteAndNegateIfEqual(kSignedLessThanOrEqual); |
| 1403 | return VisitWordCompare(selector, value, cont); |
| 1404 | case IrOpcode::kUint32LessThan: |
| 1405 | cont->OverwriteAndNegateIfEqual(kUnsignedLessThan); |
| 1406 | return VisitWordCompare(selector, value, cont); |
| 1407 | case IrOpcode::kUint32LessThanOrEqual: |
| 1408 | cont->OverwriteAndNegateIfEqual(kUnsignedLessThanOrEqual); |
| 1409 | return VisitWordCompare(selector, value, cont); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1410 | case IrOpcode::kFloat32Equal: |
| 1411 | cont->OverwriteAndNegateIfEqual(kEqual); |
| 1412 | return VisitFloat32Compare(selector, value, cont); |
| 1413 | case IrOpcode::kFloat32LessThan: |
| 1414 | cont->OverwriteAndNegateIfEqual(kFloatLessThan); |
| 1415 | return VisitFloat32Compare(selector, value, cont); |
| 1416 | case IrOpcode::kFloat32LessThanOrEqual: |
| 1417 | cont->OverwriteAndNegateIfEqual(kFloatLessThanOrEqual); |
| 1418 | return VisitFloat32Compare(selector, value, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1419 | case IrOpcode::kFloat64Equal: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1420 | cont->OverwriteAndNegateIfEqual(kEqual); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1421 | return VisitFloat64Compare(selector, value, cont); |
| 1422 | case IrOpcode::kFloat64LessThan: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1423 | cont->OverwriteAndNegateIfEqual(kFloatLessThan); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1424 | return VisitFloat64Compare(selector, value, cont); |
| 1425 | case IrOpcode::kFloat64LessThanOrEqual: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1426 | cont->OverwriteAndNegateIfEqual(kFloatLessThanOrEqual); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1427 | return VisitFloat64Compare(selector, value, cont); |
| 1428 | case IrOpcode::kProjection: |
| 1429 | // Check if this is the overflow output projection of an |
| 1430 | // <Operation>WithOverflow node. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1431 | if (ProjectionIndexOf(value->op()) == 1u) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1432 | // We cannot combine the <Operation>WithOverflow with this branch |
| 1433 | // unless the 0th projection (the use of the actual value of the |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1434 | // <Operation> is either nullptr, which means there's no use of the |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1435 | // actual value, or was already defined, which means it is scheduled |
| 1436 | // *AFTER* this branch). |
| 1437 | Node* const node = value->InputAt(0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1438 | Node* const result = NodeProperties::FindProjection(node, 0); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1439 | if (!result || selector->IsDefined(result)) { |
| 1440 | switch (node->opcode()) { |
| 1441 | case IrOpcode::kInt32AddWithOverflow: |
| 1442 | cont->OverwriteAndNegateIfEqual(kOverflow); |
| 1443 | return VisitBinop(selector, node, kArmAdd, kArmAdd, cont); |
| 1444 | case IrOpcode::kInt32SubWithOverflow: |
| 1445 | cont->OverwriteAndNegateIfEqual(kOverflow); |
| 1446 | return VisitBinop(selector, node, kArmSub, kArmRsb, cont); |
| 1447 | default: |
| 1448 | break; |
| 1449 | } |
| 1450 | } |
| 1451 | } |
| 1452 | break; |
| 1453 | case IrOpcode::kInt32Add: |
| 1454 | return VisitWordCompare(selector, value, kArmCmn, cont); |
| 1455 | case IrOpcode::kInt32Sub: |
| 1456 | return VisitWordCompare(selector, value, kArmCmp, cont); |
| 1457 | case IrOpcode::kWord32And: |
| 1458 | return VisitWordCompare(selector, value, kArmTst, cont); |
| 1459 | case IrOpcode::kWord32Or: |
| 1460 | return VisitBinop(selector, value, kArmOrr, kArmOrr, cont); |
| 1461 | case IrOpcode::kWord32Xor: |
| 1462 | return VisitWordCompare(selector, value, kArmTeq, cont); |
| 1463 | case IrOpcode::kWord32Sar: |
| 1464 | return VisitShift(selector, value, TryMatchASR, cont); |
| 1465 | case IrOpcode::kWord32Shl: |
| 1466 | return VisitShift(selector, value, TryMatchLSL, cont); |
| 1467 | case IrOpcode::kWord32Shr: |
| 1468 | return VisitShift(selector, value, TryMatchLSR, cont); |
| 1469 | case IrOpcode::kWord32Ror: |
| 1470 | return VisitShift(selector, value, TryMatchROR, cont); |
| 1471 | default: |
| 1472 | break; |
| 1473 | } |
| 1474 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1475 | } |
| 1476 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1477 | // Continuation could not be combined with a compare, emit compare against 0. |
| 1478 | ArmOperandGenerator g(selector); |
| 1479 | InstructionCode const opcode = |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1480 | cont->Encode(kArmTst) | AddressingModeField::encode(kMode_Operand2_R); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1481 | InstructionOperand const value_operand = g.UseRegister(value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1482 | if (cont->IsBranch()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1483 | selector->Emit(opcode, g.NoOutput(), value_operand, value_operand, |
| 1484 | g.Label(cont->true_block()), g.Label(cont->false_block())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1485 | } else { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1486 | selector->Emit(opcode, g.DefineAsRegister(cont->result()), value_operand, |
| 1487 | value_operand); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1488 | } |
| 1489 | } |
| 1490 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1491 | } // namespace |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1492 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1493 | |
| 1494 | void InstructionSelector::VisitBranch(Node* branch, BasicBlock* tbranch, |
| 1495 | BasicBlock* fbranch) { |
| 1496 | FlagsContinuation cont(kNotEqual, tbranch, fbranch); |
| 1497 | VisitWordCompareZero(this, branch, branch->InputAt(0), &cont); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1498 | } |
| 1499 | |
| 1500 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1501 | void InstructionSelector::VisitSwitch(Node* node, const SwitchInfo& sw) { |
| 1502 | ArmOperandGenerator g(this); |
| 1503 | InstructionOperand value_operand = g.UseRegister(node->InputAt(0)); |
| 1504 | |
| 1505 | // Emit either ArchTableSwitch or ArchLookupSwitch. |
| 1506 | size_t table_space_cost = 4 + sw.value_range; |
| 1507 | size_t table_time_cost = 3; |
| 1508 | size_t lookup_space_cost = 3 + 2 * sw.case_count; |
| 1509 | size_t lookup_time_cost = sw.case_count; |
| 1510 | if (sw.case_count > 0 && |
| 1511 | table_space_cost + 3 * table_time_cost <= |
| 1512 | lookup_space_cost + 3 * lookup_time_cost && |
| 1513 | sw.min_value > std::numeric_limits<int32_t>::min()) { |
| 1514 | InstructionOperand index_operand = value_operand; |
| 1515 | if (sw.min_value) { |
| 1516 | index_operand = g.TempRegister(); |
| 1517 | Emit(kArmSub | AddressingModeField::encode(kMode_Operand2_I), |
| 1518 | index_operand, value_operand, g.TempImmediate(sw.min_value)); |
| 1519 | } |
| 1520 | // Generate a table lookup. |
| 1521 | return EmitTableSwitch(sw, index_operand); |
| 1522 | } |
| 1523 | |
| 1524 | // Generate a sequence of conditional jumps. |
| 1525 | return EmitLookupSwitch(sw, value_operand); |
| 1526 | } |
| 1527 | |
| 1528 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1529 | void InstructionSelector::VisitWord32Equal(Node* const node) { |
| 1530 | FlagsContinuation cont(kEqual, node); |
| 1531 | Int32BinopMatcher m(node); |
| 1532 | if (m.right().Is(0)) { |
| 1533 | return VisitWordCompareZero(this, m.node(), m.left().node(), &cont); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1534 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1535 | VisitWordCompare(this, node, &cont); |
| 1536 | } |
| 1537 | |
| 1538 | |
| 1539 | void InstructionSelector::VisitInt32LessThan(Node* node) { |
| 1540 | FlagsContinuation cont(kSignedLessThan, node); |
| 1541 | VisitWordCompare(this, node, &cont); |
| 1542 | } |
| 1543 | |
| 1544 | |
| 1545 | void InstructionSelector::VisitInt32LessThanOrEqual(Node* node) { |
| 1546 | FlagsContinuation cont(kSignedLessThanOrEqual, node); |
| 1547 | VisitWordCompare(this, node, &cont); |
| 1548 | } |
| 1549 | |
| 1550 | |
| 1551 | void InstructionSelector::VisitUint32LessThan(Node* node) { |
| 1552 | FlagsContinuation cont(kUnsignedLessThan, node); |
| 1553 | VisitWordCompare(this, node, &cont); |
| 1554 | } |
| 1555 | |
| 1556 | |
| 1557 | void InstructionSelector::VisitUint32LessThanOrEqual(Node* node) { |
| 1558 | FlagsContinuation cont(kUnsignedLessThanOrEqual, node); |
| 1559 | VisitWordCompare(this, node, &cont); |
| 1560 | } |
| 1561 | |
| 1562 | |
| 1563 | void InstructionSelector::VisitInt32AddWithOverflow(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1564 | if (Node* ovf = NodeProperties::FindProjection(node, 1)) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1565 | FlagsContinuation cont(kOverflow, ovf); |
| 1566 | return VisitBinop(this, node, kArmAdd, kArmAdd, &cont); |
| 1567 | } |
| 1568 | FlagsContinuation cont; |
| 1569 | VisitBinop(this, node, kArmAdd, kArmAdd, &cont); |
| 1570 | } |
| 1571 | |
| 1572 | |
| 1573 | void InstructionSelector::VisitInt32SubWithOverflow(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1574 | if (Node* ovf = NodeProperties::FindProjection(node, 1)) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1575 | FlagsContinuation cont(kOverflow, ovf); |
| 1576 | return VisitBinop(this, node, kArmSub, kArmRsb, &cont); |
| 1577 | } |
| 1578 | FlagsContinuation cont; |
| 1579 | VisitBinop(this, node, kArmSub, kArmRsb, &cont); |
| 1580 | } |
| 1581 | |
| 1582 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1583 | void InstructionSelector::VisitFloat32Equal(Node* node) { |
| 1584 | FlagsContinuation cont(kEqual, node); |
| 1585 | VisitFloat32Compare(this, node, &cont); |
| 1586 | } |
| 1587 | |
| 1588 | |
| 1589 | void InstructionSelector::VisitFloat32LessThan(Node* node) { |
| 1590 | FlagsContinuation cont(kFloatLessThan, node); |
| 1591 | VisitFloat32Compare(this, node, &cont); |
| 1592 | } |
| 1593 | |
| 1594 | |
| 1595 | void InstructionSelector::VisitFloat32LessThanOrEqual(Node* node) { |
| 1596 | FlagsContinuation cont(kFloatLessThanOrEqual, node); |
| 1597 | VisitFloat32Compare(this, node, &cont); |
| 1598 | } |
| 1599 | |
| 1600 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1601 | void InstructionSelector::VisitFloat64Equal(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1602 | FlagsContinuation cont(kEqual, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1603 | VisitFloat64Compare(this, node, &cont); |
| 1604 | } |
| 1605 | |
| 1606 | |
| 1607 | void InstructionSelector::VisitFloat64LessThan(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1608 | FlagsContinuation cont(kFloatLessThan, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1609 | VisitFloat64Compare(this, node, &cont); |
| 1610 | } |
| 1611 | |
| 1612 | |
| 1613 | void InstructionSelector::VisitFloat64LessThanOrEqual(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1614 | FlagsContinuation cont(kFloatLessThanOrEqual, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1615 | VisitFloat64Compare(this, node, &cont); |
| 1616 | } |
| 1617 | |
| 1618 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1619 | void InstructionSelector::VisitFloat64ExtractLowWord32(Node* node) { |
| 1620 | VisitRR(this, kArmVmovLowU32F64, node); |
| 1621 | } |
| 1622 | |
| 1623 | |
| 1624 | void InstructionSelector::VisitFloat64ExtractHighWord32(Node* node) { |
| 1625 | VisitRR(this, kArmVmovHighU32F64, node); |
| 1626 | } |
| 1627 | |
| 1628 | |
| 1629 | void InstructionSelector::VisitFloat64InsertLowWord32(Node* node) { |
| 1630 | ArmOperandGenerator g(this); |
| 1631 | Node* left = node->InputAt(0); |
| 1632 | Node* right = node->InputAt(1); |
| 1633 | if (left->opcode() == IrOpcode::kFloat64InsertHighWord32 && |
| 1634 | CanCover(node, left)) { |
| 1635 | left = left->InputAt(1); |
| 1636 | Emit(kArmVmovF64U32U32, g.DefineAsRegister(node), g.UseRegister(right), |
| 1637 | g.UseRegister(left)); |
| 1638 | return; |
| 1639 | } |
| 1640 | Emit(kArmVmovLowF64U32, g.DefineSameAsFirst(node), g.UseRegister(left), |
| 1641 | g.UseRegister(right)); |
| 1642 | } |
| 1643 | |
| 1644 | |
| 1645 | void InstructionSelector::VisitFloat64InsertHighWord32(Node* node) { |
| 1646 | ArmOperandGenerator g(this); |
| 1647 | Node* left = node->InputAt(0); |
| 1648 | Node* right = node->InputAt(1); |
| 1649 | if (left->opcode() == IrOpcode::kFloat64InsertLowWord32 && |
| 1650 | CanCover(node, left)) { |
| 1651 | left = left->InputAt(1); |
| 1652 | Emit(kArmVmovF64U32U32, g.DefineAsRegister(node), g.UseRegister(left), |
| 1653 | g.UseRegister(right)); |
| 1654 | return; |
| 1655 | } |
| 1656 | Emit(kArmVmovHighF64U32, g.DefineSameAsFirst(node), g.UseRegister(left), |
| 1657 | g.UseRegister(right)); |
| 1658 | } |
| 1659 | |
| 1660 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1661 | // static |
| 1662 | MachineOperatorBuilder::Flags |
| 1663 | InstructionSelector::SupportedMachineOperatorFlags() { |
| 1664 | MachineOperatorBuilder::Flags flags = |
| 1665 | MachineOperatorBuilder::kInt32DivIsSafe | |
| 1666 | MachineOperatorBuilder::kUint32DivIsSafe; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 1667 | if (CpuFeatures::IsSupported(ARMv7)) { |
| 1668 | flags |= MachineOperatorBuilder::kWord32ReverseBits; |
| 1669 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1670 | if (CpuFeatures::IsSupported(ARMv8)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1671 | flags |= MachineOperatorBuilder::kFloat32RoundDown | |
| 1672 | MachineOperatorBuilder::kFloat64RoundDown | |
| 1673 | MachineOperatorBuilder::kFloat32RoundUp | |
| 1674 | MachineOperatorBuilder::kFloat64RoundUp | |
| 1675 | MachineOperatorBuilder::kFloat32RoundTruncate | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1676 | MachineOperatorBuilder::kFloat64RoundTruncate | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1677 | MachineOperatorBuilder::kFloat64RoundTiesAway | |
| 1678 | MachineOperatorBuilder::kFloat32RoundTiesEven | |
| 1679 | MachineOperatorBuilder::kFloat64RoundTiesEven; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1680 | } |
| 1681 | return flags; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1682 | } |
| 1683 | |
| 1684 | } // namespace compiler |
| 1685 | } // namespace internal |
| 1686 | } // namespace v8 |