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 | |
| 5 | #include "src/compiler/instruction-selector-impl.h" |
| 6 | #include "src/compiler/node-matchers.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7 | #include "src/compiler/node-properties.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8 | |
| 9 | namespace v8 { |
| 10 | namespace internal { |
| 11 | namespace compiler { |
| 12 | |
| 13 | enum ImmediateMode { |
| 14 | kArithmeticImm, // 12 bit unsigned immediate shifted left 0 or 12 bits |
| 15 | kShift32Imm, // 0 - 31 |
| 16 | kShift64Imm, // 0 - 63 |
| 17 | kLogical32Imm, |
| 18 | kLogical64Imm, |
| 19 | kLoadStoreImm8, // signed 8 bit or 12 bit unsigned scaled by access size |
| 20 | kLoadStoreImm16, |
| 21 | kLoadStoreImm32, |
| 22 | kLoadStoreImm64, |
| 23 | kNoImmediate |
| 24 | }; |
| 25 | |
| 26 | |
| 27 | // Adds Arm64-specific methods for generating operands. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 28 | class Arm64OperandGenerator final : public OperandGenerator { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 29 | public: |
| 30 | explicit Arm64OperandGenerator(InstructionSelector* selector) |
| 31 | : OperandGenerator(selector) {} |
| 32 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 33 | InstructionOperand UseOperand(Node* node, ImmediateMode mode) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 34 | if (CanBeImmediate(node, mode)) { |
| 35 | return UseImmediate(node); |
| 36 | } |
| 37 | return UseRegister(node); |
| 38 | } |
| 39 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 40 | // Use the zero register if the node has the immediate value zero, otherwise |
| 41 | // assign a register. |
| 42 | InstructionOperand UseRegisterOrImmediateZero(Node* node) { |
| 43 | if (IsIntegerConstant(node) && (GetIntegerConstantValue(node) == 0)) { |
| 44 | return UseImmediate(node); |
| 45 | } |
| 46 | return UseRegister(node); |
| 47 | } |
| 48 | |
| 49 | // Use the provided node if it has the required value, or create a |
| 50 | // TempImmediate otherwise. |
| 51 | InstructionOperand UseImmediateOrTemp(Node* node, int32_t value) { |
| 52 | if (GetIntegerConstantValue(node) == value) { |
| 53 | return UseImmediate(node); |
| 54 | } |
| 55 | return TempImmediate(value); |
| 56 | } |
| 57 | |
| 58 | bool IsIntegerConstant(Node* node) { |
| 59 | return (node->opcode() == IrOpcode::kInt32Constant) || |
| 60 | (node->opcode() == IrOpcode::kInt64Constant); |
| 61 | } |
| 62 | |
| 63 | int64_t GetIntegerConstantValue(Node* node) { |
| 64 | if (node->opcode() == IrOpcode::kInt32Constant) { |
| 65 | return OpParameter<int32_t>(node); |
| 66 | } |
| 67 | DCHECK(node->opcode() == IrOpcode::kInt64Constant); |
| 68 | return OpParameter<int64_t>(node); |
| 69 | } |
| 70 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 71 | bool CanBeImmediate(Node* node, ImmediateMode mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 72 | return IsIntegerConstant(node) && |
| 73 | CanBeImmediate(GetIntegerConstantValue(node), mode); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 74 | } |
| 75 | |
| 76 | bool CanBeImmediate(int64_t value, ImmediateMode mode) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 77 | unsigned ignored; |
| 78 | switch (mode) { |
| 79 | case kLogical32Imm: |
| 80 | // TODO(dcarney): some unencodable values can be handled by |
| 81 | // switching instructions. |
| 82 | return Assembler::IsImmLogical(static_cast<uint64_t>(value), 32, |
| 83 | &ignored, &ignored, &ignored); |
| 84 | case kLogical64Imm: |
| 85 | return Assembler::IsImmLogical(static_cast<uint64_t>(value), 64, |
| 86 | &ignored, &ignored, &ignored); |
| 87 | case kArithmeticImm: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 88 | return Assembler::IsImmAddSub(value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 89 | case kLoadStoreImm8: |
| 90 | return IsLoadStoreImmediate(value, LSByte); |
| 91 | case kLoadStoreImm16: |
| 92 | return IsLoadStoreImmediate(value, LSHalfword); |
| 93 | case kLoadStoreImm32: |
| 94 | return IsLoadStoreImmediate(value, LSWord); |
| 95 | case kLoadStoreImm64: |
| 96 | return IsLoadStoreImmediate(value, LSDoubleWord); |
| 97 | case kNoImmediate: |
| 98 | return false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 99 | case kShift32Imm: // Fall through. |
| 100 | case kShift64Imm: |
| 101 | // Shift operations only observe the bottom 5 or 6 bits of the value. |
| 102 | // All possible shifts can be encoded by discarding bits which have no |
| 103 | // effect. |
| 104 | return true; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 105 | } |
| 106 | return false; |
| 107 | } |
| 108 | |
| 109 | private: |
| 110 | bool IsLoadStoreImmediate(int64_t value, LSDataSize size) { |
| 111 | return Assembler::IsImmLSScaled(value, size) || |
| 112 | Assembler::IsImmLSUnscaled(value); |
| 113 | } |
| 114 | }; |
| 115 | |
| 116 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 117 | namespace { |
| 118 | |
| 119 | void VisitRR(InstructionSelector* selector, ArchOpcode opcode, Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 120 | Arm64OperandGenerator g(selector); |
| 121 | selector->Emit(opcode, g.DefineAsRegister(node), |
| 122 | g.UseRegister(node->InputAt(0))); |
| 123 | } |
| 124 | |
| 125 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 126 | void VisitRRR(InstructionSelector* selector, ArchOpcode opcode, Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 127 | Arm64OperandGenerator g(selector); |
| 128 | selector->Emit(opcode, g.DefineAsRegister(node), |
| 129 | g.UseRegister(node->InputAt(0)), |
| 130 | g.UseRegister(node->InputAt(1))); |
| 131 | } |
| 132 | |
| 133 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 134 | void VisitRRO(InstructionSelector* selector, ArchOpcode opcode, Node* node, |
| 135 | ImmediateMode operand_mode) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 136 | Arm64OperandGenerator g(selector); |
| 137 | selector->Emit(opcode, g.DefineAsRegister(node), |
| 138 | g.UseRegister(node->InputAt(0)), |
| 139 | g.UseOperand(node->InputAt(1), operand_mode)); |
| 140 | } |
| 141 | |
| 142 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 143 | bool TryMatchAnyShift(InstructionSelector* selector, Node* node, |
| 144 | Node* input_node, InstructionCode* opcode, bool try_ror) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 145 | Arm64OperandGenerator g(selector); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 146 | |
| 147 | if (!selector->CanCover(node, input_node)) return false; |
| 148 | if (input_node->InputCount() != 2) return false; |
| 149 | if (!g.IsIntegerConstant(input_node->InputAt(1))) return false; |
| 150 | |
| 151 | switch (input_node->opcode()) { |
| 152 | case IrOpcode::kWord32Shl: |
| 153 | case IrOpcode::kWord64Shl: |
| 154 | *opcode |= AddressingModeField::encode(kMode_Operand2_R_LSL_I); |
| 155 | return true; |
| 156 | case IrOpcode::kWord32Shr: |
| 157 | case IrOpcode::kWord64Shr: |
| 158 | *opcode |= AddressingModeField::encode(kMode_Operand2_R_LSR_I); |
| 159 | return true; |
| 160 | case IrOpcode::kWord32Sar: |
| 161 | case IrOpcode::kWord64Sar: |
| 162 | *opcode |= AddressingModeField::encode(kMode_Operand2_R_ASR_I); |
| 163 | return true; |
| 164 | case IrOpcode::kWord32Ror: |
| 165 | case IrOpcode::kWord64Ror: |
| 166 | if (try_ror) { |
| 167 | *opcode |= AddressingModeField::encode(kMode_Operand2_R_ROR_I); |
| 168 | return true; |
| 169 | } |
| 170 | return false; |
| 171 | default: |
| 172 | return false; |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | |
| 177 | bool TryMatchAnyExtend(Arm64OperandGenerator* g, InstructionSelector* selector, |
| 178 | Node* node, Node* left_node, Node* right_node, |
| 179 | InstructionOperand* left_op, |
| 180 | InstructionOperand* right_op, InstructionCode* opcode) { |
| 181 | if (!selector->CanCover(node, right_node)) return false; |
| 182 | |
| 183 | NodeMatcher nm(right_node); |
| 184 | |
| 185 | if (nm.IsWord32And()) { |
| 186 | Int32BinopMatcher mright(right_node); |
| 187 | if (mright.right().Is(0xff) || mright.right().Is(0xffff)) { |
| 188 | int32_t mask = mright.right().Value(); |
| 189 | *left_op = g->UseRegister(left_node); |
| 190 | *right_op = g->UseRegister(mright.left().node()); |
| 191 | *opcode |= AddressingModeField::encode( |
| 192 | (mask == 0xff) ? kMode_Operand2_R_UXTB : kMode_Operand2_R_UXTH); |
| 193 | return true; |
| 194 | } |
| 195 | } else if (nm.IsWord32Sar()) { |
| 196 | Int32BinopMatcher mright(right_node); |
| 197 | if (selector->CanCover(mright.node(), mright.left().node()) && |
| 198 | mright.left().IsWord32Shl()) { |
| 199 | Int32BinopMatcher mleft_of_right(mright.left().node()); |
| 200 | if ((mright.right().Is(16) && mleft_of_right.right().Is(16)) || |
| 201 | (mright.right().Is(24) && mleft_of_right.right().Is(24))) { |
| 202 | int32_t shift = mright.right().Value(); |
| 203 | *left_op = g->UseRegister(left_node); |
| 204 | *right_op = g->UseRegister(mleft_of_right.left().node()); |
| 205 | *opcode |= AddressingModeField::encode( |
| 206 | (shift == 24) ? kMode_Operand2_R_SXTB : kMode_Operand2_R_SXTH); |
| 207 | return true; |
| 208 | } |
| 209 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 210 | } |
| 211 | return false; |
| 212 | } |
| 213 | |
| 214 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 215 | // Shared routine for multiple binary operations. |
| 216 | template <typename Matcher> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 217 | void VisitBinop(InstructionSelector* selector, Node* node, |
| 218 | InstructionCode opcode, ImmediateMode operand_mode, |
| 219 | FlagsContinuation* cont) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 220 | Arm64OperandGenerator g(selector); |
| 221 | Matcher m(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 222 | InstructionOperand inputs[5]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 223 | size_t input_count = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 224 | InstructionOperand outputs[2]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 225 | size_t output_count = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 226 | bool is_cmp = (opcode == kArm64Cmp32) || (opcode == kArm64Cmn32); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 227 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 228 | // We can commute cmp by switching the inputs and commuting the flags |
| 229 | // continuation. |
| 230 | bool can_commute = m.HasProperty(Operator::kCommutative) || is_cmp; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 231 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 232 | // The cmp and cmn instructions are encoded as sub or add with zero output |
| 233 | // register, and therefore support the same operand modes. |
| 234 | bool is_add_sub = m.IsInt32Add() || m.IsInt64Add() || m.IsInt32Sub() || |
| 235 | m.IsInt64Sub() || is_cmp; |
| 236 | |
| 237 | Node* left_node = m.left().node(); |
| 238 | Node* right_node = m.right().node(); |
| 239 | |
| 240 | if (g.CanBeImmediate(right_node, operand_mode)) { |
| 241 | inputs[input_count++] = g.UseRegister(left_node); |
| 242 | inputs[input_count++] = g.UseImmediate(right_node); |
| 243 | } else if (is_cmp && g.CanBeImmediate(left_node, operand_mode)) { |
| 244 | cont->Commute(); |
| 245 | inputs[input_count++] = g.UseRegister(right_node); |
| 246 | inputs[input_count++] = g.UseImmediate(left_node); |
| 247 | } else if (is_add_sub && |
| 248 | TryMatchAnyExtend(&g, selector, node, left_node, right_node, |
| 249 | &inputs[0], &inputs[1], &opcode)) { |
| 250 | input_count += 2; |
| 251 | } else if (is_add_sub && can_commute && |
| 252 | TryMatchAnyExtend(&g, selector, node, right_node, left_node, |
| 253 | &inputs[0], &inputs[1], &opcode)) { |
| 254 | if (is_cmp) cont->Commute(); |
| 255 | input_count += 2; |
| 256 | } else if (TryMatchAnyShift(selector, node, right_node, &opcode, |
| 257 | !is_add_sub)) { |
| 258 | Matcher m_shift(right_node); |
| 259 | inputs[input_count++] = g.UseRegisterOrImmediateZero(left_node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 260 | inputs[input_count++] = g.UseRegister(m_shift.left().node()); |
| 261 | inputs[input_count++] = g.UseImmediate(m_shift.right().node()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 262 | } else if (can_commute && TryMatchAnyShift(selector, node, left_node, &opcode, |
| 263 | !is_add_sub)) { |
| 264 | if (is_cmp) cont->Commute(); |
| 265 | Matcher m_shift(left_node); |
| 266 | inputs[input_count++] = g.UseRegisterOrImmediateZero(right_node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 267 | inputs[input_count++] = g.UseRegister(m_shift.left().node()); |
| 268 | inputs[input_count++] = g.UseImmediate(m_shift.right().node()); |
| 269 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 270 | inputs[input_count++] = g.UseRegisterOrImmediateZero(left_node); |
| 271 | inputs[input_count++] = g.UseRegister(right_node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 272 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 273 | |
| 274 | if (cont->IsBranch()) { |
| 275 | inputs[input_count++] = g.Label(cont->true_block()); |
| 276 | inputs[input_count++] = g.Label(cont->false_block()); |
| 277 | } |
| 278 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 279 | if (!is_cmp) { |
| 280 | outputs[output_count++] = g.DefineAsRegister(node); |
| 281 | } |
| 282 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 283 | if (cont->IsSet()) { |
| 284 | outputs[output_count++] = g.DefineAsRegister(cont->result()); |
| 285 | } |
| 286 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 287 | DCHECK_NE(0u, input_count); |
| 288 | DCHECK((output_count != 0) || is_cmp); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 289 | DCHECK_GE(arraysize(inputs), input_count); |
| 290 | DCHECK_GE(arraysize(outputs), output_count); |
| 291 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 292 | opcode = cont->Encode(opcode); |
| 293 | if (cont->IsDeoptimize()) { |
| 294 | selector->EmitDeoptimize(opcode, output_count, outputs, input_count, inputs, |
| 295 | cont->frame_state()); |
| 296 | } else { |
| 297 | selector->Emit(opcode, output_count, outputs, input_count, inputs); |
| 298 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 299 | } |
| 300 | |
| 301 | |
| 302 | // Shared routine for multiple binary operations. |
| 303 | template <typename Matcher> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 304 | void VisitBinop(InstructionSelector* selector, Node* node, ArchOpcode opcode, |
| 305 | ImmediateMode operand_mode) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 306 | FlagsContinuation cont; |
| 307 | VisitBinop<Matcher>(selector, node, opcode, operand_mode, &cont); |
| 308 | } |
| 309 | |
| 310 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 311 | template <typename Matcher> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 312 | void VisitAddSub(InstructionSelector* selector, Node* node, ArchOpcode opcode, |
| 313 | ArchOpcode negate_opcode) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 314 | Arm64OperandGenerator g(selector); |
| 315 | Matcher m(node); |
| 316 | if (m.right().HasValue() && (m.right().Value() < 0) && |
| 317 | g.CanBeImmediate(-m.right().Value(), kArithmeticImm)) { |
| 318 | selector->Emit(negate_opcode, g.DefineAsRegister(node), |
| 319 | g.UseRegister(m.left().node()), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 320 | g.TempImmediate(static_cast<int32_t>(-m.right().Value()))); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 321 | } else { |
| 322 | VisitBinop<Matcher>(selector, node, opcode, kArithmeticImm); |
| 323 | } |
| 324 | } |
| 325 | |
| 326 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 327 | // For multiplications by immediate of the form x * (2^k + 1), where k > 0, |
| 328 | // return the value of k, otherwise return zero. This is used to reduce the |
| 329 | // multiplication to addition with left shift: x + (x << k). |
| 330 | template <typename Matcher> |
| 331 | int32_t LeftShiftForReducedMultiply(Matcher* m) { |
| 332 | DCHECK(m->IsInt32Mul() || m->IsInt64Mul()); |
| 333 | if (m->right().HasValue() && m->right().Value() >= 3) { |
| 334 | uint64_t value_minus_one = m->right().Value() - 1; |
| 335 | if (base::bits::IsPowerOfTwo64(value_minus_one)) { |
| 336 | return WhichPowerOf2_64(value_minus_one); |
| 337 | } |
| 338 | } |
| 339 | return 0; |
| 340 | } |
| 341 | |
| 342 | } // namespace |
| 343 | |
| 344 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 345 | void InstructionSelector::VisitLoad(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 346 | LoadRepresentation load_rep = LoadRepresentationOf(node->op()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 347 | Arm64OperandGenerator g(this); |
| 348 | Node* base = node->InputAt(0); |
| 349 | Node* index = node->InputAt(1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 350 | ArchOpcode opcode = kArchNop; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 351 | ImmediateMode immediate_mode = kNoImmediate; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 352 | switch (load_rep.representation()) { |
| 353 | case MachineRepresentation::kFloat32: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 354 | opcode = kArm64LdrS; |
| 355 | immediate_mode = kLoadStoreImm32; |
| 356 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 357 | case MachineRepresentation::kFloat64: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 358 | opcode = kArm64LdrD; |
| 359 | immediate_mode = kLoadStoreImm64; |
| 360 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 361 | case MachineRepresentation::kBit: // Fall through. |
| 362 | case MachineRepresentation::kWord8: |
| 363 | opcode = load_rep.IsSigned() ? kArm64Ldrsb : kArm64Ldrb; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 364 | immediate_mode = kLoadStoreImm8; |
| 365 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 366 | case MachineRepresentation::kWord16: |
| 367 | opcode = load_rep.IsSigned() ? kArm64Ldrsh : kArm64Ldrh; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 368 | immediate_mode = kLoadStoreImm16; |
| 369 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 370 | case MachineRepresentation::kWord32: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 371 | opcode = kArm64LdrW; |
| 372 | immediate_mode = kLoadStoreImm32; |
| 373 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 374 | case MachineRepresentation::kTagged: // Fall through. |
| 375 | case MachineRepresentation::kWord64: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 376 | opcode = kArm64Ldr; |
| 377 | immediate_mode = kLoadStoreImm64; |
| 378 | break; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 379 | case MachineRepresentation::kSimd128: // Fall through. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 380 | case MachineRepresentation::kNone: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 381 | UNREACHABLE(); |
| 382 | return; |
| 383 | } |
| 384 | if (g.CanBeImmediate(index, immediate_mode)) { |
| 385 | Emit(opcode | AddressingModeField::encode(kMode_MRI), |
| 386 | g.DefineAsRegister(node), g.UseRegister(base), g.UseImmediate(index)); |
| 387 | } else { |
| 388 | Emit(opcode | AddressingModeField::encode(kMode_MRR), |
| 389 | g.DefineAsRegister(node), g.UseRegister(base), g.UseRegister(index)); |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | |
| 394 | void InstructionSelector::VisitStore(Node* node) { |
| 395 | Arm64OperandGenerator g(this); |
| 396 | Node* base = node->InputAt(0); |
| 397 | Node* index = node->InputAt(1); |
| 398 | Node* value = node->InputAt(2); |
| 399 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 400 | StoreRepresentation store_rep = StoreRepresentationOf(node->op()); |
| 401 | WriteBarrierKind write_barrier_kind = store_rep.write_barrier_kind(); |
| 402 | MachineRepresentation rep = store_rep.representation(); |
| 403 | |
| 404 | // TODO(arm64): I guess this could be done in a better way. |
| 405 | if (write_barrier_kind != kNoWriteBarrier) { |
| 406 | DCHECK_EQ(MachineRepresentation::kTagged, rep); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 407 | AddressingMode addressing_mode; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 408 | InstructionOperand inputs[3]; |
| 409 | size_t input_count = 0; |
| 410 | inputs[input_count++] = g.UseUniqueRegister(base); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 411 | // OutOfLineRecordWrite uses the index in an arithmetic instruction, so we |
| 412 | // must check kArithmeticImm as well as kLoadStoreImm64. |
| 413 | if (g.CanBeImmediate(index, kArithmeticImm) && |
| 414 | g.CanBeImmediate(index, kLoadStoreImm64)) { |
| 415 | inputs[input_count++] = g.UseImmediate(index); |
| 416 | addressing_mode = kMode_MRI; |
| 417 | } else { |
| 418 | inputs[input_count++] = g.UseUniqueRegister(index); |
| 419 | addressing_mode = kMode_MRR; |
| 420 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 421 | inputs[input_count++] = g.UseUniqueRegister(value); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 422 | RecordWriteMode record_write_mode = RecordWriteMode::kValueIsAny; |
| 423 | switch (write_barrier_kind) { |
| 424 | case kNoWriteBarrier: |
| 425 | UNREACHABLE(); |
| 426 | break; |
| 427 | case kMapWriteBarrier: |
| 428 | record_write_mode = RecordWriteMode::kValueIsMap; |
| 429 | break; |
| 430 | case kPointerWriteBarrier: |
| 431 | record_write_mode = RecordWriteMode::kValueIsPointer; |
| 432 | break; |
| 433 | case kFullWriteBarrier: |
| 434 | record_write_mode = RecordWriteMode::kValueIsAny; |
| 435 | break; |
| 436 | } |
| 437 | InstructionOperand temps[] = {g.TempRegister(), g.TempRegister()}; |
| 438 | size_t const temp_count = arraysize(temps); |
| 439 | InstructionCode code = kArchStoreWithWriteBarrier; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 440 | code |= AddressingModeField::encode(addressing_mode); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 441 | code |= MiscField::encode(static_cast<int>(record_write_mode)); |
| 442 | Emit(code, 0, nullptr, input_count, inputs, temp_count, temps); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 443 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 444 | ArchOpcode opcode = kArchNop; |
| 445 | ImmediateMode immediate_mode = kNoImmediate; |
| 446 | switch (rep) { |
| 447 | case MachineRepresentation::kFloat32: |
| 448 | opcode = kArm64StrS; |
| 449 | immediate_mode = kLoadStoreImm32; |
| 450 | break; |
| 451 | case MachineRepresentation::kFloat64: |
| 452 | opcode = kArm64StrD; |
| 453 | immediate_mode = kLoadStoreImm64; |
| 454 | break; |
| 455 | case MachineRepresentation::kBit: // Fall through. |
| 456 | case MachineRepresentation::kWord8: |
| 457 | opcode = kArm64Strb; |
| 458 | immediate_mode = kLoadStoreImm8; |
| 459 | break; |
| 460 | case MachineRepresentation::kWord16: |
| 461 | opcode = kArm64Strh; |
| 462 | immediate_mode = kLoadStoreImm16; |
| 463 | break; |
| 464 | case MachineRepresentation::kWord32: |
| 465 | opcode = kArm64StrW; |
| 466 | immediate_mode = kLoadStoreImm32; |
| 467 | break; |
| 468 | case MachineRepresentation::kTagged: // Fall through. |
| 469 | case MachineRepresentation::kWord64: |
| 470 | opcode = kArm64Str; |
| 471 | immediate_mode = kLoadStoreImm64; |
| 472 | break; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 473 | case MachineRepresentation::kSimd128: // Fall through. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 474 | case MachineRepresentation::kNone: |
| 475 | UNREACHABLE(); |
| 476 | return; |
| 477 | } |
| 478 | if (g.CanBeImmediate(index, immediate_mode)) { |
| 479 | Emit(opcode | AddressingModeField::encode(kMode_MRI), g.NoOutput(), |
| 480 | g.UseRegister(base), g.UseImmediate(index), g.UseRegister(value)); |
| 481 | } else { |
| 482 | Emit(opcode | AddressingModeField::encode(kMode_MRR), g.NoOutput(), |
| 483 | g.UseRegister(base), g.UseRegister(index), g.UseRegister(value)); |
| 484 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 485 | } |
| 486 | } |
| 487 | |
| 488 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 489 | void InstructionSelector::VisitCheckedLoad(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 490 | CheckedLoadRepresentation load_rep = CheckedLoadRepresentationOf(node->op()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 491 | Arm64OperandGenerator g(this); |
| 492 | Node* const buffer = node->InputAt(0); |
| 493 | Node* const offset = node->InputAt(1); |
| 494 | Node* const length = node->InputAt(2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 495 | ArchOpcode opcode = kArchNop; |
| 496 | switch (load_rep.representation()) { |
| 497 | case MachineRepresentation::kWord8: |
| 498 | opcode = load_rep.IsSigned() ? kCheckedLoadInt8 : kCheckedLoadUint8; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 499 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 500 | case MachineRepresentation::kWord16: |
| 501 | opcode = load_rep.IsSigned() ? kCheckedLoadInt16 : kCheckedLoadUint16; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 502 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 503 | case MachineRepresentation::kWord32: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 504 | opcode = kCheckedLoadWord32; |
| 505 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 506 | case MachineRepresentation::kWord64: |
| 507 | opcode = kCheckedLoadWord64; |
| 508 | break; |
| 509 | case MachineRepresentation::kFloat32: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 510 | opcode = kCheckedLoadFloat32; |
| 511 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 512 | case MachineRepresentation::kFloat64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 513 | opcode = kCheckedLoadFloat64; |
| 514 | break; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 515 | case MachineRepresentation::kBit: // Fall through. |
| 516 | case MachineRepresentation::kTagged: // Fall through. |
| 517 | case MachineRepresentation::kSimd128: // Fall through. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 518 | case MachineRepresentation::kNone: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 519 | UNREACHABLE(); |
| 520 | return; |
| 521 | } |
| 522 | Emit(opcode, g.DefineAsRegister(node), g.UseRegister(buffer), |
| 523 | g.UseRegister(offset), g.UseOperand(length, kArithmeticImm)); |
| 524 | } |
| 525 | |
| 526 | |
| 527 | void InstructionSelector::VisitCheckedStore(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 528 | MachineRepresentation rep = CheckedStoreRepresentationOf(node->op()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 529 | Arm64OperandGenerator g(this); |
| 530 | Node* const buffer = node->InputAt(0); |
| 531 | Node* const offset = node->InputAt(1); |
| 532 | Node* const length = node->InputAt(2); |
| 533 | Node* const value = node->InputAt(3); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 534 | ArchOpcode opcode = kArchNop; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 535 | switch (rep) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 536 | case MachineRepresentation::kWord8: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 537 | opcode = kCheckedStoreWord8; |
| 538 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 539 | case MachineRepresentation::kWord16: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 540 | opcode = kCheckedStoreWord16; |
| 541 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 542 | case MachineRepresentation::kWord32: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 543 | opcode = kCheckedStoreWord32; |
| 544 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 545 | case MachineRepresentation::kWord64: |
| 546 | opcode = kCheckedStoreWord64; |
| 547 | break; |
| 548 | case MachineRepresentation::kFloat32: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 549 | opcode = kCheckedStoreFloat32; |
| 550 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 551 | case MachineRepresentation::kFloat64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 552 | opcode = kCheckedStoreFloat64; |
| 553 | break; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 554 | case MachineRepresentation::kBit: // Fall through. |
| 555 | case MachineRepresentation::kTagged: // Fall through. |
| 556 | case MachineRepresentation::kSimd128: // Fall through. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 557 | case MachineRepresentation::kNone: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 558 | UNREACHABLE(); |
| 559 | return; |
| 560 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 561 | Emit(opcode, g.NoOutput(), g.UseRegister(buffer), g.UseRegister(offset), |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 562 | g.UseOperand(length, kArithmeticImm), g.UseRegister(value)); |
| 563 | } |
| 564 | |
| 565 | |
| 566 | template <typename Matcher> |
| 567 | static void VisitLogical(InstructionSelector* selector, Node* node, Matcher* m, |
| 568 | ArchOpcode opcode, bool left_can_cover, |
| 569 | bool right_can_cover, ImmediateMode imm_mode) { |
| 570 | Arm64OperandGenerator g(selector); |
| 571 | |
| 572 | // Map instruction to equivalent operation with inverted right input. |
| 573 | ArchOpcode inv_opcode = opcode; |
| 574 | switch (opcode) { |
| 575 | case kArm64And32: |
| 576 | inv_opcode = kArm64Bic32; |
| 577 | break; |
| 578 | case kArm64And: |
| 579 | inv_opcode = kArm64Bic; |
| 580 | break; |
| 581 | case kArm64Or32: |
| 582 | inv_opcode = kArm64Orn32; |
| 583 | break; |
| 584 | case kArm64Or: |
| 585 | inv_opcode = kArm64Orn; |
| 586 | break; |
| 587 | case kArm64Eor32: |
| 588 | inv_opcode = kArm64Eon32; |
| 589 | break; |
| 590 | case kArm64Eor: |
| 591 | inv_opcode = kArm64Eon; |
| 592 | break; |
| 593 | default: |
| 594 | UNREACHABLE(); |
| 595 | } |
| 596 | |
| 597 | // Select Logical(y, ~x) for Logical(Xor(x, -1), y). |
| 598 | if ((m->left().IsWord32Xor() || m->left().IsWord64Xor()) && left_can_cover) { |
| 599 | Matcher mleft(m->left().node()); |
| 600 | if (mleft.right().Is(-1)) { |
| 601 | // TODO(all): support shifted operand on right. |
| 602 | selector->Emit(inv_opcode, g.DefineAsRegister(node), |
| 603 | g.UseRegister(m->right().node()), |
| 604 | g.UseRegister(mleft.left().node())); |
| 605 | return; |
| 606 | } |
| 607 | } |
| 608 | |
| 609 | // Select Logical(x, ~y) for Logical(x, Xor(y, -1)). |
| 610 | if ((m->right().IsWord32Xor() || m->right().IsWord64Xor()) && |
| 611 | right_can_cover) { |
| 612 | Matcher mright(m->right().node()); |
| 613 | if (mright.right().Is(-1)) { |
| 614 | // TODO(all): support shifted operand on right. |
| 615 | selector->Emit(inv_opcode, g.DefineAsRegister(node), |
| 616 | g.UseRegister(m->left().node()), |
| 617 | g.UseRegister(mright.left().node())); |
| 618 | return; |
| 619 | } |
| 620 | } |
| 621 | |
| 622 | if (m->IsWord32Xor() && m->right().Is(-1)) { |
| 623 | selector->Emit(kArm64Not32, g.DefineAsRegister(node), |
| 624 | g.UseRegister(m->left().node())); |
| 625 | } else if (m->IsWord64Xor() && m->right().Is(-1)) { |
| 626 | selector->Emit(kArm64Not, g.DefineAsRegister(node), |
| 627 | g.UseRegister(m->left().node())); |
| 628 | } else { |
| 629 | VisitBinop<Matcher>(selector, node, opcode, imm_mode); |
| 630 | } |
| 631 | } |
| 632 | |
| 633 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 634 | void InstructionSelector::VisitWord32And(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 635 | Arm64OperandGenerator g(this); |
| 636 | Int32BinopMatcher m(node); |
| 637 | if (m.left().IsWord32Shr() && CanCover(node, m.left().node()) && |
| 638 | m.right().HasValue()) { |
| 639 | uint32_t mask = m.right().Value(); |
| 640 | uint32_t mask_width = base::bits::CountPopulation32(mask); |
| 641 | uint32_t mask_msb = base::bits::CountLeadingZeros32(mask); |
| 642 | if ((mask_width != 0) && (mask_msb + mask_width == 32)) { |
| 643 | // The mask must be contiguous, and occupy the least-significant bits. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 644 | DCHECK_EQ(0u, base::bits::CountTrailingZeros32(mask)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 645 | |
| 646 | // Select Ubfx for And(Shr(x, imm), mask) where the mask is in the least |
| 647 | // significant bits. |
| 648 | Int32BinopMatcher mleft(m.left().node()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 649 | if (mleft.right().HasValue()) { |
| 650 | // Any shift value can match; int32 shifts use `value % 32`. |
| 651 | uint32_t lsb = mleft.right().Value() & 0x1f; |
| 652 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 653 | // Ubfx cannot extract bits past the register size, however since |
| 654 | // shifting the original value would have introduced some zeros we can |
| 655 | // still use ubfx with a smaller mask and the remaining bits will be |
| 656 | // zeros. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 657 | if (lsb + mask_width > 32) mask_width = 32 - lsb; |
| 658 | |
| 659 | Emit(kArm64Ubfx32, g.DefineAsRegister(node), |
| 660 | g.UseRegister(mleft.left().node()), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 661 | g.UseImmediateOrTemp(mleft.right().node(), lsb), |
| 662 | g.TempImmediate(mask_width)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 663 | return; |
| 664 | } |
| 665 | // Other cases fall through to the normal And operation. |
| 666 | } |
| 667 | } |
| 668 | VisitLogical<Int32BinopMatcher>( |
| 669 | this, node, &m, kArm64And32, CanCover(node, m.left().node()), |
| 670 | CanCover(node, m.right().node()), kLogical32Imm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 671 | } |
| 672 | |
| 673 | |
| 674 | void InstructionSelector::VisitWord64And(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 675 | Arm64OperandGenerator g(this); |
| 676 | Int64BinopMatcher m(node); |
| 677 | if (m.left().IsWord64Shr() && CanCover(node, m.left().node()) && |
| 678 | m.right().HasValue()) { |
| 679 | uint64_t mask = m.right().Value(); |
| 680 | uint64_t mask_width = base::bits::CountPopulation64(mask); |
| 681 | uint64_t mask_msb = base::bits::CountLeadingZeros64(mask); |
| 682 | if ((mask_width != 0) && (mask_msb + mask_width == 64)) { |
| 683 | // The mask must be contiguous, and occupy the least-significant bits. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 684 | DCHECK_EQ(0u, base::bits::CountTrailingZeros64(mask)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 685 | |
| 686 | // Select Ubfx for And(Shr(x, imm), mask) where the mask is in the least |
| 687 | // significant bits. |
| 688 | Int64BinopMatcher mleft(m.left().node()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 689 | if (mleft.right().HasValue()) { |
| 690 | // Any shift value can match; int64 shifts use `value % 64`. |
| 691 | uint32_t lsb = static_cast<uint32_t>(mleft.right().Value() & 0x3f); |
| 692 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 693 | // Ubfx cannot extract bits past the register size, however since |
| 694 | // shifting the original value would have introduced some zeros we can |
| 695 | // still use ubfx with a smaller mask and the remaining bits will be |
| 696 | // zeros. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 697 | if (lsb + mask_width > 64) mask_width = 64 - lsb; |
| 698 | |
| 699 | Emit(kArm64Ubfx, g.DefineAsRegister(node), |
| 700 | g.UseRegister(mleft.left().node()), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 701 | g.UseImmediateOrTemp(mleft.right().node(), lsb), |
| 702 | g.TempImmediate(static_cast<int32_t>(mask_width))); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 703 | return; |
| 704 | } |
| 705 | // Other cases fall through to the normal And operation. |
| 706 | } |
| 707 | } |
| 708 | VisitLogical<Int64BinopMatcher>( |
| 709 | this, node, &m, kArm64And, CanCover(node, m.left().node()), |
| 710 | CanCover(node, m.right().node()), kLogical64Imm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 711 | } |
| 712 | |
| 713 | |
| 714 | void InstructionSelector::VisitWord32Or(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 715 | Int32BinopMatcher m(node); |
| 716 | VisitLogical<Int32BinopMatcher>( |
| 717 | this, node, &m, kArm64Or32, CanCover(node, m.left().node()), |
| 718 | CanCover(node, m.right().node()), kLogical32Imm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 719 | } |
| 720 | |
| 721 | |
| 722 | void InstructionSelector::VisitWord64Or(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 723 | Int64BinopMatcher m(node); |
| 724 | VisitLogical<Int64BinopMatcher>( |
| 725 | this, node, &m, kArm64Or, CanCover(node, m.left().node()), |
| 726 | CanCover(node, m.right().node()), kLogical64Imm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 727 | } |
| 728 | |
| 729 | |
| 730 | void InstructionSelector::VisitWord32Xor(Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 731 | Int32BinopMatcher m(node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 732 | VisitLogical<Int32BinopMatcher>( |
| 733 | this, node, &m, kArm64Eor32, CanCover(node, m.left().node()), |
| 734 | CanCover(node, m.right().node()), kLogical32Imm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 735 | } |
| 736 | |
| 737 | |
| 738 | void InstructionSelector::VisitWord64Xor(Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 739 | Int64BinopMatcher m(node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 740 | VisitLogical<Int64BinopMatcher>( |
| 741 | this, node, &m, kArm64Eor, CanCover(node, m.left().node()), |
| 742 | CanCover(node, m.right().node()), kLogical64Imm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 743 | } |
| 744 | |
| 745 | |
| 746 | void InstructionSelector::VisitWord32Shl(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 747 | Int32BinopMatcher m(node); |
| 748 | if (m.left().IsWord32And() && CanCover(node, m.left().node()) && |
| 749 | m.right().IsInRange(1, 31)) { |
| 750 | Arm64OperandGenerator g(this); |
| 751 | Int32BinopMatcher mleft(m.left().node()); |
| 752 | if (mleft.right().HasValue()) { |
| 753 | uint32_t mask = mleft.right().Value(); |
| 754 | uint32_t mask_width = base::bits::CountPopulation32(mask); |
| 755 | uint32_t mask_msb = base::bits::CountLeadingZeros32(mask); |
| 756 | if ((mask_width != 0) && (mask_msb + mask_width == 32)) { |
| 757 | uint32_t shift = m.right().Value(); |
| 758 | DCHECK_EQ(0u, base::bits::CountTrailingZeros32(mask)); |
| 759 | DCHECK_NE(0u, shift); |
| 760 | |
| 761 | if ((shift + mask_width) >= 32) { |
| 762 | // If the mask is contiguous and reaches or extends beyond the top |
| 763 | // bit, only the shift is needed. |
| 764 | Emit(kArm64Lsl32, g.DefineAsRegister(node), |
| 765 | g.UseRegister(mleft.left().node()), |
| 766 | g.UseImmediate(m.right().node())); |
| 767 | return; |
| 768 | } else { |
| 769 | // Select Ubfiz for Shl(And(x, mask), imm) where the mask is |
| 770 | // contiguous, and the shift immediate non-zero. |
| 771 | Emit(kArm64Ubfiz32, g.DefineAsRegister(node), |
| 772 | g.UseRegister(mleft.left().node()), |
| 773 | g.UseImmediate(m.right().node()), g.TempImmediate(mask_width)); |
| 774 | return; |
| 775 | } |
| 776 | } |
| 777 | } |
| 778 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 779 | VisitRRO(this, kArm64Lsl32, node, kShift32Imm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 780 | } |
| 781 | |
| 782 | |
| 783 | void InstructionSelector::VisitWord64Shl(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 784 | Arm64OperandGenerator g(this); |
| 785 | Int64BinopMatcher m(node); |
| 786 | if ((m.left().IsChangeInt32ToInt64() || m.left().IsChangeUint32ToUint64()) && |
| 787 | m.right().IsInRange(32, 63)) { |
| 788 | // There's no need to sign/zero-extend to 64-bit if we shift out the upper |
| 789 | // 32 bits anyway. |
| 790 | Emit(kArm64Lsl, g.DefineAsRegister(node), |
| 791 | g.UseRegister(m.left().node()->InputAt(0)), |
| 792 | g.UseImmediate(m.right().node())); |
| 793 | return; |
| 794 | } |
| 795 | VisitRRO(this, kArm64Lsl, node, kShift64Imm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 796 | } |
| 797 | |
| 798 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 799 | namespace { |
| 800 | |
| 801 | bool TryEmitBitfieldExtract32(InstructionSelector* selector, Node* node) { |
| 802 | Arm64OperandGenerator g(selector); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 803 | Int32BinopMatcher m(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 804 | if (selector->CanCover(node, m.left().node()) && m.left().IsWord32Shl()) { |
| 805 | // Select Ubfx or Sbfx for (x << (K & 0x1f)) OP (K & 0x1f), where |
| 806 | // OP is >>> or >> and (K & 0x1f) != 0. |
| 807 | Int32BinopMatcher mleft(m.left().node()); |
| 808 | if (mleft.right().HasValue() && m.right().HasValue() && |
| 809 | (mleft.right().Value() & 0x1f) == (m.right().Value() & 0x1f)) { |
| 810 | DCHECK(m.IsWord32Shr() || m.IsWord32Sar()); |
| 811 | ArchOpcode opcode = m.IsWord32Sar() ? kArm64Sbfx32 : kArm64Ubfx32; |
| 812 | |
| 813 | int right_val = m.right().Value() & 0x1f; |
| 814 | DCHECK_NE(right_val, 0); |
| 815 | |
| 816 | selector->Emit(opcode, g.DefineAsRegister(node), |
| 817 | g.UseRegister(mleft.left().node()), g.TempImmediate(0), |
| 818 | g.TempImmediate(32 - right_val)); |
| 819 | return true; |
| 820 | } |
| 821 | } |
| 822 | return false; |
| 823 | } |
| 824 | |
| 825 | } // namespace |
| 826 | |
| 827 | |
| 828 | void InstructionSelector::VisitWord32Shr(Node* node) { |
| 829 | Int32BinopMatcher m(node); |
| 830 | if (m.left().IsWord32And() && m.right().HasValue()) { |
| 831 | uint32_t lsb = m.right().Value() & 0x1f; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 832 | Int32BinopMatcher mleft(m.left().node()); |
| 833 | if (mleft.right().HasValue()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 834 | // Select Ubfx for Shr(And(x, mask), imm) where the result of the mask is |
| 835 | // shifted into the least-significant bits. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 836 | uint32_t mask = (mleft.right().Value() >> lsb) << lsb; |
| 837 | unsigned mask_width = base::bits::CountPopulation32(mask); |
| 838 | unsigned mask_msb = base::bits::CountLeadingZeros32(mask); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 839 | if ((mask_msb + mask_width + lsb) == 32) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 840 | Arm64OperandGenerator g(this); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 841 | DCHECK_EQ(lsb, base::bits::CountTrailingZeros32(mask)); |
| 842 | Emit(kArm64Ubfx32, g.DefineAsRegister(node), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 843 | g.UseRegister(mleft.left().node()), |
| 844 | g.UseImmediateOrTemp(m.right().node(), lsb), |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 845 | g.TempImmediate(mask_width)); |
| 846 | return; |
| 847 | } |
| 848 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 849 | } else if (TryEmitBitfieldExtract32(this, node)) { |
| 850 | return; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 851 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 852 | |
| 853 | if (m.left().IsUint32MulHigh() && m.right().HasValue() && |
| 854 | CanCover(node, node->InputAt(0))) { |
| 855 | // Combine this shift with the multiply and shift that would be generated |
| 856 | // by Uint32MulHigh. |
| 857 | Arm64OperandGenerator g(this); |
| 858 | Node* left = m.left().node(); |
| 859 | int shift = m.right().Value() & 0x1f; |
| 860 | InstructionOperand const smull_operand = g.TempRegister(); |
| 861 | Emit(kArm64Umull, smull_operand, g.UseRegister(left->InputAt(0)), |
| 862 | g.UseRegister(left->InputAt(1))); |
| 863 | Emit(kArm64Lsr, g.DefineAsRegister(node), smull_operand, |
| 864 | g.TempImmediate(32 + shift)); |
| 865 | return; |
| 866 | } |
| 867 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 868 | VisitRRO(this, kArm64Lsr32, node, kShift32Imm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 869 | } |
| 870 | |
| 871 | |
| 872 | void InstructionSelector::VisitWord64Shr(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 873 | Int64BinopMatcher m(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 874 | if (m.left().IsWord64And() && m.right().HasValue()) { |
| 875 | uint32_t lsb = m.right().Value() & 0x3f; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 876 | Int64BinopMatcher mleft(m.left().node()); |
| 877 | if (mleft.right().HasValue()) { |
| 878 | // Select Ubfx for Shr(And(x, mask), imm) where the result of the mask is |
| 879 | // shifted into the least-significant bits. |
| 880 | uint64_t mask = (mleft.right().Value() >> lsb) << lsb; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 881 | unsigned mask_width = base::bits::CountPopulation64(mask); |
| 882 | unsigned mask_msb = base::bits::CountLeadingZeros64(mask); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 883 | if ((mask_msb + mask_width + lsb) == 64) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 884 | Arm64OperandGenerator g(this); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 885 | DCHECK_EQ(lsb, base::bits::CountTrailingZeros64(mask)); |
| 886 | Emit(kArm64Ubfx, g.DefineAsRegister(node), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 887 | g.UseRegister(mleft.left().node()), |
| 888 | g.UseImmediateOrTemp(m.right().node(), lsb), |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 889 | g.TempImmediate(mask_width)); |
| 890 | return; |
| 891 | } |
| 892 | } |
| 893 | } |
| 894 | VisitRRO(this, kArm64Lsr, node, kShift64Imm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 895 | } |
| 896 | |
| 897 | |
| 898 | void InstructionSelector::VisitWord32Sar(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 899 | if (TryEmitBitfieldExtract32(this, node)) { |
| 900 | return; |
| 901 | } |
| 902 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 903 | Int32BinopMatcher m(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 904 | if (m.left().IsInt32MulHigh() && m.right().HasValue() && |
| 905 | CanCover(node, node->InputAt(0))) { |
| 906 | // Combine this shift with the multiply and shift that would be generated |
| 907 | // by Int32MulHigh. |
| 908 | Arm64OperandGenerator g(this); |
| 909 | Node* left = m.left().node(); |
| 910 | int shift = m.right().Value() & 0x1f; |
| 911 | InstructionOperand const smull_operand = g.TempRegister(); |
| 912 | Emit(kArm64Smull, smull_operand, g.UseRegister(left->InputAt(0)), |
| 913 | g.UseRegister(left->InputAt(1))); |
| 914 | Emit(kArm64Asr, g.DefineAsRegister(node), smull_operand, |
| 915 | g.TempImmediate(32 + shift)); |
| 916 | return; |
| 917 | } |
| 918 | |
| 919 | if (m.left().IsInt32Add() && m.right().HasValue() && |
| 920 | CanCover(node, node->InputAt(0))) { |
| 921 | Node* add_node = m.left().node(); |
| 922 | Int32BinopMatcher madd_node(add_node); |
| 923 | if (madd_node.left().IsInt32MulHigh() && |
| 924 | CanCover(add_node, madd_node.left().node())) { |
| 925 | // Combine the shift that would be generated by Int32MulHigh with the add |
| 926 | // on the left of this Sar operation. We do it here, as the result of the |
| 927 | // add potentially has 33 bits, so we have to ensure the result is |
| 928 | // truncated by being the input to this 32-bit Sar operation. |
| 929 | Arm64OperandGenerator g(this); |
| 930 | Node* mul_node = madd_node.left().node(); |
| 931 | |
| 932 | InstructionOperand const smull_operand = g.TempRegister(); |
| 933 | Emit(kArm64Smull, smull_operand, g.UseRegister(mul_node->InputAt(0)), |
| 934 | g.UseRegister(mul_node->InputAt(1))); |
| 935 | |
| 936 | InstructionOperand const add_operand = g.TempRegister(); |
| 937 | Emit(kArm64Add | AddressingModeField::encode(kMode_Operand2_R_ASR_I), |
| 938 | add_operand, g.UseRegister(add_node->InputAt(1)), smull_operand, |
| 939 | g.TempImmediate(32)); |
| 940 | |
| 941 | Emit(kArm64Asr32, g.DefineAsRegister(node), add_operand, |
| 942 | g.UseImmediate(node->InputAt(1))); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 943 | return; |
| 944 | } |
| 945 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 946 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 947 | VisitRRO(this, kArm64Asr32, node, kShift32Imm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 948 | } |
| 949 | |
| 950 | |
| 951 | void InstructionSelector::VisitWord64Sar(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 952 | VisitRRO(this, kArm64Asr, node, kShift64Imm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 953 | } |
| 954 | |
| 955 | |
| 956 | void InstructionSelector::VisitWord32Ror(Node* node) { |
| 957 | VisitRRO(this, kArm64Ror32, node, kShift32Imm); |
| 958 | } |
| 959 | |
| 960 | |
| 961 | void InstructionSelector::VisitWord64Ror(Node* node) { |
| 962 | VisitRRO(this, kArm64Ror, node, kShift64Imm); |
| 963 | } |
| 964 | |
| 965 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 966 | void InstructionSelector::VisitWord64Clz(Node* node) { |
| 967 | Arm64OperandGenerator g(this); |
| 968 | Emit(kArm64Clz, g.DefineAsRegister(node), g.UseRegister(node->InputAt(0))); |
| 969 | } |
| 970 | |
| 971 | |
| 972 | void InstructionSelector::VisitWord32Clz(Node* node) { |
| 973 | Arm64OperandGenerator g(this); |
| 974 | Emit(kArm64Clz32, g.DefineAsRegister(node), g.UseRegister(node->InputAt(0))); |
| 975 | } |
| 976 | |
| 977 | |
| 978 | void InstructionSelector::VisitWord32Ctz(Node* node) { UNREACHABLE(); } |
| 979 | |
| 980 | |
| 981 | void InstructionSelector::VisitWord64Ctz(Node* node) { UNREACHABLE(); } |
| 982 | |
| 983 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 984 | void InstructionSelector::VisitWord32ReverseBits(Node* node) { |
| 985 | VisitRR(this, kArm64Rbit32, node); |
| 986 | } |
| 987 | |
| 988 | |
| 989 | void InstructionSelector::VisitWord64ReverseBits(Node* node) { |
| 990 | VisitRR(this, kArm64Rbit, node); |
| 991 | } |
| 992 | |
| 993 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 994 | void InstructionSelector::VisitWord32Popcnt(Node* node) { UNREACHABLE(); } |
| 995 | |
| 996 | |
| 997 | void InstructionSelector::VisitWord64Popcnt(Node* node) { UNREACHABLE(); } |
| 998 | |
| 999 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1000 | void InstructionSelector::VisitInt32Add(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1001 | Arm64OperandGenerator g(this); |
| 1002 | Int32BinopMatcher m(node); |
| 1003 | // Select Madd(x, y, z) for Add(Mul(x, y), z). |
| 1004 | if (m.left().IsInt32Mul() && CanCover(node, m.left().node())) { |
| 1005 | Int32BinopMatcher mleft(m.left().node()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1006 | // Check multiply can't be later reduced to addition with shift. |
| 1007 | if (LeftShiftForReducedMultiply(&mleft) == 0) { |
| 1008 | Emit(kArm64Madd32, g.DefineAsRegister(node), |
| 1009 | g.UseRegister(mleft.left().node()), |
| 1010 | g.UseRegister(mleft.right().node()), |
| 1011 | g.UseRegister(m.right().node())); |
| 1012 | return; |
| 1013 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1014 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1015 | // Select Madd(x, y, z) for Add(z, Mul(x, y)). |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1016 | if (m.right().IsInt32Mul() && CanCover(node, m.right().node())) { |
| 1017 | Int32BinopMatcher mright(m.right().node()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1018 | // Check multiply can't be later reduced to addition with shift. |
| 1019 | if (LeftShiftForReducedMultiply(&mright) == 0) { |
| 1020 | Emit(kArm64Madd32, g.DefineAsRegister(node), |
| 1021 | g.UseRegister(mright.left().node()), |
| 1022 | g.UseRegister(mright.right().node()), |
| 1023 | g.UseRegister(m.left().node())); |
| 1024 | return; |
| 1025 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1026 | } |
| 1027 | VisitAddSub<Int32BinopMatcher>(this, node, kArm64Add32, kArm64Sub32); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1028 | } |
| 1029 | |
| 1030 | |
| 1031 | void InstructionSelector::VisitInt64Add(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1032 | Arm64OperandGenerator g(this); |
| 1033 | Int64BinopMatcher m(node); |
| 1034 | // Select Madd(x, y, z) for Add(Mul(x, y), z). |
| 1035 | if (m.left().IsInt64Mul() && CanCover(node, m.left().node())) { |
| 1036 | Int64BinopMatcher mleft(m.left().node()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1037 | // Check multiply can't be later reduced to addition with shift. |
| 1038 | if (LeftShiftForReducedMultiply(&mleft) == 0) { |
| 1039 | Emit(kArm64Madd, g.DefineAsRegister(node), |
| 1040 | g.UseRegister(mleft.left().node()), |
| 1041 | g.UseRegister(mleft.right().node()), |
| 1042 | g.UseRegister(m.right().node())); |
| 1043 | return; |
| 1044 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1045 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1046 | // Select Madd(x, y, z) for Add(z, Mul(x, y)). |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1047 | if (m.right().IsInt64Mul() && CanCover(node, m.right().node())) { |
| 1048 | Int64BinopMatcher mright(m.right().node()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1049 | // Check multiply can't be later reduced to addition with shift. |
| 1050 | if (LeftShiftForReducedMultiply(&mright) == 0) { |
| 1051 | Emit(kArm64Madd, g.DefineAsRegister(node), |
| 1052 | g.UseRegister(mright.left().node()), |
| 1053 | g.UseRegister(mright.right().node()), |
| 1054 | g.UseRegister(m.left().node())); |
| 1055 | return; |
| 1056 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1057 | } |
| 1058 | VisitAddSub<Int64BinopMatcher>(this, node, kArm64Add, kArm64Sub); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1059 | } |
| 1060 | |
| 1061 | |
| 1062 | void InstructionSelector::VisitInt32Sub(Node* node) { |
| 1063 | Arm64OperandGenerator g(this); |
| 1064 | Int32BinopMatcher m(node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1065 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1066 | // Select Msub(x, y, a) for Sub(a, Mul(x, y)). |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1067 | if (m.right().IsInt32Mul() && CanCover(node, m.right().node())) { |
| 1068 | Int32BinopMatcher mright(m.right().node()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1069 | // Check multiply can't be later reduced to addition with shift. |
| 1070 | if (LeftShiftForReducedMultiply(&mright) == 0) { |
| 1071 | Emit(kArm64Msub32, g.DefineAsRegister(node), |
| 1072 | g.UseRegister(mright.left().node()), |
| 1073 | g.UseRegister(mright.right().node()), |
| 1074 | g.UseRegister(m.left().node())); |
| 1075 | return; |
| 1076 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1077 | } |
| 1078 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1079 | VisitAddSub<Int32BinopMatcher>(this, node, kArm64Sub32, kArm64Add32); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1080 | } |
| 1081 | |
| 1082 | |
| 1083 | void InstructionSelector::VisitInt64Sub(Node* node) { |
| 1084 | Arm64OperandGenerator g(this); |
| 1085 | Int64BinopMatcher m(node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1086 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1087 | // Select Msub(x, y, a) for Sub(a, Mul(x, y)). |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1088 | if (m.right().IsInt64Mul() && CanCover(node, m.right().node())) { |
| 1089 | Int64BinopMatcher mright(m.right().node()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1090 | // Check multiply can't be later reduced to addition with shift. |
| 1091 | if (LeftShiftForReducedMultiply(&mright) == 0) { |
| 1092 | Emit(kArm64Msub, g.DefineAsRegister(node), |
| 1093 | g.UseRegister(mright.left().node()), |
| 1094 | g.UseRegister(mright.right().node()), |
| 1095 | g.UseRegister(m.left().node())); |
| 1096 | return; |
| 1097 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1098 | } |
| 1099 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1100 | VisitAddSub<Int64BinopMatcher>(this, node, kArm64Sub, kArm64Add); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1101 | } |
| 1102 | |
| 1103 | |
| 1104 | void InstructionSelector::VisitInt32Mul(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1105 | Arm64OperandGenerator g(this); |
| 1106 | Int32BinopMatcher m(node); |
| 1107 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1108 | // First, try to reduce the multiplication to addition with left shift. |
| 1109 | // x * (2^k + 1) -> x + (x << k) |
| 1110 | int32_t shift = LeftShiftForReducedMultiply(&m); |
| 1111 | if (shift > 0) { |
| 1112 | Emit(kArm64Add32 | AddressingModeField::encode(kMode_Operand2_R_LSL_I), |
| 1113 | g.DefineAsRegister(node), g.UseRegister(m.left().node()), |
| 1114 | g.UseRegister(m.left().node()), g.TempImmediate(shift)); |
| 1115 | return; |
| 1116 | } |
| 1117 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1118 | if (m.left().IsInt32Sub() && CanCover(node, m.left().node())) { |
| 1119 | Int32BinopMatcher mleft(m.left().node()); |
| 1120 | |
| 1121 | // Select Mneg(x, y) for Mul(Sub(0, x), y). |
| 1122 | if (mleft.left().Is(0)) { |
| 1123 | Emit(kArm64Mneg32, g.DefineAsRegister(node), |
| 1124 | g.UseRegister(mleft.right().node()), |
| 1125 | g.UseRegister(m.right().node())); |
| 1126 | return; |
| 1127 | } |
| 1128 | } |
| 1129 | |
| 1130 | if (m.right().IsInt32Sub() && CanCover(node, m.right().node())) { |
| 1131 | Int32BinopMatcher mright(m.right().node()); |
| 1132 | |
| 1133 | // Select Mneg(x, y) for Mul(x, Sub(0, y)). |
| 1134 | if (mright.left().Is(0)) { |
| 1135 | Emit(kArm64Mneg32, g.DefineAsRegister(node), |
| 1136 | g.UseRegister(m.left().node()), |
| 1137 | g.UseRegister(mright.right().node())); |
| 1138 | return; |
| 1139 | } |
| 1140 | } |
| 1141 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1142 | VisitRRR(this, kArm64Mul32, node); |
| 1143 | } |
| 1144 | |
| 1145 | |
| 1146 | void InstructionSelector::VisitInt64Mul(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1147 | Arm64OperandGenerator g(this); |
| 1148 | Int64BinopMatcher m(node); |
| 1149 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1150 | // First, try to reduce the multiplication to addition with left shift. |
| 1151 | // x * (2^k + 1) -> x + (x << k) |
| 1152 | int32_t shift = LeftShiftForReducedMultiply(&m); |
| 1153 | if (shift > 0) { |
| 1154 | Emit(kArm64Add | AddressingModeField::encode(kMode_Operand2_R_LSL_I), |
| 1155 | g.DefineAsRegister(node), g.UseRegister(m.left().node()), |
| 1156 | g.UseRegister(m.left().node()), g.TempImmediate(shift)); |
| 1157 | return; |
| 1158 | } |
| 1159 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1160 | if (m.left().IsInt64Sub() && CanCover(node, m.left().node())) { |
| 1161 | Int64BinopMatcher mleft(m.left().node()); |
| 1162 | |
| 1163 | // Select Mneg(x, y) for Mul(Sub(0, x), y). |
| 1164 | if (mleft.left().Is(0)) { |
| 1165 | Emit(kArm64Mneg, g.DefineAsRegister(node), |
| 1166 | g.UseRegister(mleft.right().node()), |
| 1167 | g.UseRegister(m.right().node())); |
| 1168 | return; |
| 1169 | } |
| 1170 | } |
| 1171 | |
| 1172 | if (m.right().IsInt64Sub() && CanCover(node, m.right().node())) { |
| 1173 | Int64BinopMatcher mright(m.right().node()); |
| 1174 | |
| 1175 | // Select Mneg(x, y) for Mul(x, Sub(0, y)). |
| 1176 | if (mright.left().Is(0)) { |
| 1177 | Emit(kArm64Mneg, g.DefineAsRegister(node), g.UseRegister(m.left().node()), |
| 1178 | g.UseRegister(mright.right().node())); |
| 1179 | return; |
| 1180 | } |
| 1181 | } |
| 1182 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1183 | VisitRRR(this, kArm64Mul, node); |
| 1184 | } |
| 1185 | |
| 1186 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1187 | void InstructionSelector::VisitInt32MulHigh(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1188 | Arm64OperandGenerator g(this); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1189 | InstructionOperand const smull_operand = g.TempRegister(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1190 | Emit(kArm64Smull, smull_operand, g.UseRegister(node->InputAt(0)), |
| 1191 | g.UseRegister(node->InputAt(1))); |
| 1192 | Emit(kArm64Asr, g.DefineAsRegister(node), smull_operand, g.TempImmediate(32)); |
| 1193 | } |
| 1194 | |
| 1195 | |
| 1196 | void InstructionSelector::VisitUint32MulHigh(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1197 | Arm64OperandGenerator g(this); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1198 | InstructionOperand const smull_operand = g.TempRegister(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1199 | Emit(kArm64Umull, smull_operand, g.UseRegister(node->InputAt(0)), |
| 1200 | g.UseRegister(node->InputAt(1))); |
| 1201 | Emit(kArm64Lsr, g.DefineAsRegister(node), smull_operand, g.TempImmediate(32)); |
| 1202 | } |
| 1203 | |
| 1204 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1205 | void InstructionSelector::VisitInt32Div(Node* node) { |
| 1206 | VisitRRR(this, kArm64Idiv32, node); |
| 1207 | } |
| 1208 | |
| 1209 | |
| 1210 | void InstructionSelector::VisitInt64Div(Node* node) { |
| 1211 | VisitRRR(this, kArm64Idiv, node); |
| 1212 | } |
| 1213 | |
| 1214 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1215 | void InstructionSelector::VisitUint32Div(Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1216 | VisitRRR(this, kArm64Udiv32, node); |
| 1217 | } |
| 1218 | |
| 1219 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1220 | void InstructionSelector::VisitUint64Div(Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1221 | VisitRRR(this, kArm64Udiv, node); |
| 1222 | } |
| 1223 | |
| 1224 | |
| 1225 | void InstructionSelector::VisitInt32Mod(Node* node) { |
| 1226 | VisitRRR(this, kArm64Imod32, node); |
| 1227 | } |
| 1228 | |
| 1229 | |
| 1230 | void InstructionSelector::VisitInt64Mod(Node* node) { |
| 1231 | VisitRRR(this, kArm64Imod, node); |
| 1232 | } |
| 1233 | |
| 1234 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1235 | void InstructionSelector::VisitUint32Mod(Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1236 | VisitRRR(this, kArm64Umod32, node); |
| 1237 | } |
| 1238 | |
| 1239 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1240 | void InstructionSelector::VisitUint64Mod(Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1241 | VisitRRR(this, kArm64Umod, node); |
| 1242 | } |
| 1243 | |
| 1244 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1245 | void InstructionSelector::VisitChangeFloat32ToFloat64(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1246 | VisitRR(this, kArm64Float32ToFloat64, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1247 | } |
| 1248 | |
| 1249 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1250 | void InstructionSelector::VisitRoundInt32ToFloat32(Node* node) { |
| 1251 | VisitRR(this, kArm64Int32ToFloat32, node); |
| 1252 | } |
| 1253 | |
| 1254 | |
| 1255 | void InstructionSelector::VisitRoundUint32ToFloat32(Node* node) { |
| 1256 | VisitRR(this, kArm64Uint32ToFloat32, node); |
| 1257 | } |
| 1258 | |
| 1259 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1260 | void InstructionSelector::VisitChangeInt32ToFloat64(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1261 | VisitRR(this, kArm64Int32ToFloat64, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1262 | } |
| 1263 | |
| 1264 | |
| 1265 | void InstructionSelector::VisitChangeUint32ToFloat64(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1266 | VisitRR(this, kArm64Uint32ToFloat64, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1267 | } |
| 1268 | |
| 1269 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1270 | void InstructionSelector::VisitTruncateFloat32ToInt32(Node* node) { |
| 1271 | VisitRR(this, kArm64Float32ToInt32, node); |
| 1272 | } |
| 1273 | |
| 1274 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1275 | void InstructionSelector::VisitChangeFloat64ToInt32(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1276 | VisitRR(this, kArm64Float64ToInt32, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1277 | } |
| 1278 | |
| 1279 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1280 | void InstructionSelector::VisitTruncateFloat32ToUint32(Node* node) { |
| 1281 | VisitRR(this, kArm64Float32ToUint32, node); |
| 1282 | } |
| 1283 | |
| 1284 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1285 | void InstructionSelector::VisitChangeFloat64ToUint32(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1286 | VisitRR(this, kArm64Float64ToUint32, node); |
| 1287 | } |
| 1288 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1289 | void InstructionSelector::VisitTruncateFloat64ToUint32(Node* node) { |
| 1290 | VisitRR(this, kArm64Float64ToUint32, node); |
| 1291 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1292 | |
| 1293 | void InstructionSelector::VisitTryTruncateFloat32ToInt64(Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1294 | Arm64OperandGenerator g(this); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1295 | |
| 1296 | InstructionOperand inputs[] = {g.UseRegister(node->InputAt(0))}; |
| 1297 | InstructionOperand outputs[2]; |
| 1298 | size_t output_count = 0; |
| 1299 | outputs[output_count++] = g.DefineAsRegister(node); |
| 1300 | |
| 1301 | Node* success_output = NodeProperties::FindProjection(node, 1); |
| 1302 | if (success_output) { |
| 1303 | outputs[output_count++] = g.DefineAsRegister(success_output); |
| 1304 | } |
| 1305 | |
| 1306 | Emit(kArm64Float32ToInt64, output_count, outputs, 1, inputs); |
| 1307 | } |
| 1308 | |
| 1309 | |
| 1310 | void InstructionSelector::VisitTryTruncateFloat64ToInt64(Node* node) { |
| 1311 | Arm64OperandGenerator g(this); |
| 1312 | |
| 1313 | InstructionOperand inputs[] = {g.UseRegister(node->InputAt(0))}; |
| 1314 | InstructionOperand outputs[2]; |
| 1315 | size_t output_count = 0; |
| 1316 | outputs[output_count++] = g.DefineAsRegister(node); |
| 1317 | |
| 1318 | Node* success_output = NodeProperties::FindProjection(node, 1); |
| 1319 | if (success_output) { |
| 1320 | outputs[output_count++] = g.DefineAsRegister(success_output); |
| 1321 | } |
| 1322 | |
| 1323 | Emit(kArm64Float64ToInt64, output_count, outputs, 1, inputs); |
| 1324 | } |
| 1325 | |
| 1326 | |
| 1327 | void InstructionSelector::VisitTryTruncateFloat32ToUint64(Node* node) { |
| 1328 | Arm64OperandGenerator g(this); |
| 1329 | |
| 1330 | InstructionOperand inputs[] = {g.UseRegister(node->InputAt(0))}; |
| 1331 | InstructionOperand outputs[2]; |
| 1332 | size_t output_count = 0; |
| 1333 | outputs[output_count++] = g.DefineAsRegister(node); |
| 1334 | |
| 1335 | Node* success_output = NodeProperties::FindProjection(node, 1); |
| 1336 | if (success_output) { |
| 1337 | outputs[output_count++] = g.DefineAsRegister(success_output); |
| 1338 | } |
| 1339 | |
| 1340 | Emit(kArm64Float32ToUint64, output_count, outputs, 1, inputs); |
| 1341 | } |
| 1342 | |
| 1343 | |
| 1344 | void InstructionSelector::VisitTryTruncateFloat64ToUint64(Node* node) { |
| 1345 | Arm64OperandGenerator g(this); |
| 1346 | |
| 1347 | InstructionOperand inputs[] = {g.UseRegister(node->InputAt(0))}; |
| 1348 | InstructionOperand outputs[2]; |
| 1349 | size_t output_count = 0; |
| 1350 | outputs[output_count++] = g.DefineAsRegister(node); |
| 1351 | |
| 1352 | Node* success_output = NodeProperties::FindProjection(node, 1); |
| 1353 | if (success_output) { |
| 1354 | outputs[output_count++] = g.DefineAsRegister(success_output); |
| 1355 | } |
| 1356 | |
| 1357 | Emit(kArm64Float64ToUint64, output_count, outputs, 1, inputs); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1358 | } |
| 1359 | |
| 1360 | |
| 1361 | void InstructionSelector::VisitChangeInt32ToInt64(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1362 | VisitRR(this, kArm64Sxtw, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1363 | } |
| 1364 | |
| 1365 | |
| 1366 | void InstructionSelector::VisitChangeUint32ToUint64(Node* node) { |
| 1367 | Arm64OperandGenerator g(this); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1368 | Node* value = node->InputAt(0); |
| 1369 | switch (value->opcode()) { |
| 1370 | case IrOpcode::kWord32And: |
| 1371 | case IrOpcode::kWord32Or: |
| 1372 | case IrOpcode::kWord32Xor: |
| 1373 | case IrOpcode::kWord32Shl: |
| 1374 | case IrOpcode::kWord32Shr: |
| 1375 | case IrOpcode::kWord32Sar: |
| 1376 | case IrOpcode::kWord32Ror: |
| 1377 | case IrOpcode::kWord32Equal: |
| 1378 | case IrOpcode::kInt32Add: |
| 1379 | case IrOpcode::kInt32AddWithOverflow: |
| 1380 | case IrOpcode::kInt32Sub: |
| 1381 | case IrOpcode::kInt32SubWithOverflow: |
| 1382 | case IrOpcode::kInt32Mul: |
| 1383 | case IrOpcode::kInt32MulHigh: |
| 1384 | case IrOpcode::kInt32Div: |
| 1385 | case IrOpcode::kInt32Mod: |
| 1386 | case IrOpcode::kInt32LessThan: |
| 1387 | case IrOpcode::kInt32LessThanOrEqual: |
| 1388 | case IrOpcode::kUint32Div: |
| 1389 | case IrOpcode::kUint32LessThan: |
| 1390 | case IrOpcode::kUint32LessThanOrEqual: |
| 1391 | case IrOpcode::kUint32Mod: |
| 1392 | case IrOpcode::kUint32MulHigh: { |
| 1393 | // 32-bit operations will write their result in a W register (implicitly |
| 1394 | // clearing the top 32-bit of the corresponding X register) so the |
| 1395 | // zero-extension is a no-op. |
| 1396 | Emit(kArchNop, g.DefineSameAsFirst(node), g.Use(value)); |
| 1397 | return; |
| 1398 | } |
| 1399 | default: |
| 1400 | break; |
| 1401 | } |
| 1402 | Emit(kArm64Mov32, g.DefineAsRegister(node), g.UseRegister(value)); |
| 1403 | } |
| 1404 | |
| 1405 | |
| 1406 | void InstructionSelector::VisitTruncateFloat64ToFloat32(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1407 | VisitRR(this, kArm64Float64ToFloat32, node); |
| 1408 | } |
| 1409 | |
| 1410 | |
| 1411 | void InstructionSelector::VisitTruncateFloat64ToInt32(Node* node) { |
| 1412 | switch (TruncationModeOf(node->op())) { |
| 1413 | case TruncationMode::kJavaScript: |
| 1414 | return VisitRR(this, kArchTruncateDoubleToI, node); |
| 1415 | case TruncationMode::kRoundToZero: |
| 1416 | return VisitRR(this, kArm64Float64ToInt32, node); |
| 1417 | } |
| 1418 | UNREACHABLE(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1419 | } |
| 1420 | |
| 1421 | |
| 1422 | void InstructionSelector::VisitTruncateInt64ToInt32(Node* node) { |
| 1423 | Arm64OperandGenerator g(this); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1424 | Node* value = node->InputAt(0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1425 | if (CanCover(node, value) && value->InputCount() >= 2) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1426 | Int64BinopMatcher m(value); |
| 1427 | if ((m.IsWord64Sar() && m.right().HasValue() && |
| 1428 | (m.right().Value() == 32)) || |
| 1429 | (m.IsWord64Shr() && m.right().IsInRange(32, 63))) { |
| 1430 | Emit(kArm64Lsr, g.DefineAsRegister(node), g.UseRegister(m.left().node()), |
| 1431 | g.UseImmediate(m.right().node())); |
| 1432 | return; |
| 1433 | } |
| 1434 | } |
| 1435 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1436 | Emit(kArm64Mov32, g.DefineAsRegister(node), g.UseRegister(node->InputAt(0))); |
| 1437 | } |
| 1438 | |
| 1439 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1440 | void InstructionSelector::VisitRoundInt64ToFloat32(Node* node) { |
| 1441 | VisitRR(this, kArm64Int64ToFloat32, node); |
| 1442 | } |
| 1443 | |
| 1444 | |
| 1445 | void InstructionSelector::VisitRoundInt64ToFloat64(Node* node) { |
| 1446 | VisitRR(this, kArm64Int64ToFloat64, node); |
| 1447 | } |
| 1448 | |
| 1449 | |
| 1450 | void InstructionSelector::VisitRoundUint64ToFloat32(Node* node) { |
| 1451 | VisitRR(this, kArm64Uint64ToFloat32, node); |
| 1452 | } |
| 1453 | |
| 1454 | |
| 1455 | void InstructionSelector::VisitRoundUint64ToFloat64(Node* node) { |
| 1456 | VisitRR(this, kArm64Uint64ToFloat64, node); |
| 1457 | } |
| 1458 | |
| 1459 | |
| 1460 | void InstructionSelector::VisitBitcastFloat32ToInt32(Node* node) { |
| 1461 | VisitRR(this, kArm64Float64ExtractLowWord32, node); |
| 1462 | } |
| 1463 | |
| 1464 | |
| 1465 | void InstructionSelector::VisitBitcastFloat64ToInt64(Node* node) { |
| 1466 | VisitRR(this, kArm64U64MoveFloat64, node); |
| 1467 | } |
| 1468 | |
| 1469 | |
| 1470 | void InstructionSelector::VisitBitcastInt32ToFloat32(Node* node) { |
| 1471 | VisitRR(this, kArm64Float64MoveU64, node); |
| 1472 | } |
| 1473 | |
| 1474 | |
| 1475 | void InstructionSelector::VisitBitcastInt64ToFloat64(Node* node) { |
| 1476 | VisitRR(this, kArm64Float64MoveU64, node); |
| 1477 | } |
| 1478 | |
| 1479 | |
| 1480 | void InstructionSelector::VisitFloat32Add(Node* node) { |
| 1481 | VisitRRR(this, kArm64Float32Add, node); |
| 1482 | } |
| 1483 | |
| 1484 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1485 | void InstructionSelector::VisitFloat64Add(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1486 | VisitRRR(this, kArm64Float64Add, node); |
| 1487 | } |
| 1488 | |
| 1489 | |
| 1490 | void InstructionSelector::VisitFloat32Sub(Node* node) { |
| 1491 | VisitRRR(this, kArm64Float32Sub, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1492 | } |
| 1493 | |
| 1494 | |
| 1495 | void InstructionSelector::VisitFloat64Sub(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1496 | Arm64OperandGenerator g(this); |
| 1497 | Float64BinopMatcher m(node); |
| 1498 | if (m.left().IsMinusZero()) { |
| 1499 | if (m.right().IsFloat64RoundDown() && |
| 1500 | CanCover(m.node(), m.right().node())) { |
| 1501 | if (m.right().InputAt(0)->opcode() == IrOpcode::kFloat64Sub && |
| 1502 | CanCover(m.right().node(), m.right().InputAt(0))) { |
| 1503 | Float64BinopMatcher mright0(m.right().InputAt(0)); |
| 1504 | if (mright0.left().IsMinusZero()) { |
| 1505 | Emit(kArm64Float64RoundUp, g.DefineAsRegister(node), |
| 1506 | g.UseRegister(mright0.right().node())); |
| 1507 | return; |
| 1508 | } |
| 1509 | } |
| 1510 | } |
| 1511 | Emit(kArm64Float64Neg, g.DefineAsRegister(node), |
| 1512 | g.UseRegister(m.right().node())); |
| 1513 | return; |
| 1514 | } |
| 1515 | VisitRRR(this, kArm64Float64Sub, node); |
| 1516 | } |
| 1517 | |
| 1518 | |
| 1519 | void InstructionSelector::VisitFloat32Mul(Node* node) { |
| 1520 | VisitRRR(this, kArm64Float32Mul, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1521 | } |
| 1522 | |
| 1523 | |
| 1524 | void InstructionSelector::VisitFloat64Mul(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1525 | VisitRRR(this, kArm64Float64Mul, node); |
| 1526 | } |
| 1527 | |
| 1528 | |
| 1529 | void InstructionSelector::VisitFloat32Div(Node* node) { |
| 1530 | VisitRRR(this, kArm64Float32Div, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1531 | } |
| 1532 | |
| 1533 | |
| 1534 | void InstructionSelector::VisitFloat64Div(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1535 | VisitRRR(this, kArm64Float64Div, node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1536 | } |
| 1537 | |
| 1538 | |
| 1539 | void InstructionSelector::VisitFloat64Mod(Node* node) { |
| 1540 | Arm64OperandGenerator g(this); |
| 1541 | Emit(kArm64Float64Mod, g.DefineAsFixed(node, d0), |
| 1542 | g.UseFixed(node->InputAt(0), d0), |
| 1543 | g.UseFixed(node->InputAt(1), d1))->MarkAsCall(); |
| 1544 | } |
| 1545 | |
| 1546 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1547 | void InstructionSelector::VisitFloat32Max(Node* node) { |
| 1548 | VisitRRR(this, kArm64Float32Max, node); |
| 1549 | } |
| 1550 | |
| 1551 | |
| 1552 | void InstructionSelector::VisitFloat64Max(Node* node) { |
| 1553 | VisitRRR(this, kArm64Float64Max, node); |
| 1554 | } |
| 1555 | |
| 1556 | |
| 1557 | void InstructionSelector::VisitFloat32Min(Node* node) { |
| 1558 | VisitRRR(this, kArm64Float32Min, node); |
| 1559 | } |
| 1560 | |
| 1561 | |
| 1562 | void InstructionSelector::VisitFloat64Min(Node* node) { |
| 1563 | VisitRRR(this, kArm64Float64Min, node); |
| 1564 | } |
| 1565 | |
| 1566 | |
| 1567 | void InstructionSelector::VisitFloat32Abs(Node* node) { |
| 1568 | VisitRR(this, kArm64Float32Abs, node); |
| 1569 | } |
| 1570 | |
| 1571 | |
| 1572 | void InstructionSelector::VisitFloat64Abs(Node* node) { |
| 1573 | VisitRR(this, kArm64Float64Abs, node); |
| 1574 | } |
| 1575 | |
| 1576 | |
| 1577 | void InstructionSelector::VisitFloat32Sqrt(Node* node) { |
| 1578 | VisitRR(this, kArm64Float32Sqrt, node); |
| 1579 | } |
| 1580 | |
| 1581 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1582 | void InstructionSelector::VisitFloat64Sqrt(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1583 | VisitRR(this, kArm64Float64Sqrt, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1584 | } |
| 1585 | |
| 1586 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1587 | void InstructionSelector::VisitFloat32RoundDown(Node* node) { |
| 1588 | VisitRR(this, kArm64Float32RoundDown, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1589 | } |
| 1590 | |
| 1591 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1592 | void InstructionSelector::VisitFloat64RoundDown(Node* node) { |
| 1593 | VisitRR(this, kArm64Float64RoundDown, node); |
| 1594 | } |
| 1595 | |
| 1596 | |
| 1597 | void InstructionSelector::VisitFloat32RoundUp(Node* node) { |
| 1598 | VisitRR(this, kArm64Float32RoundUp, node); |
| 1599 | } |
| 1600 | |
| 1601 | |
| 1602 | void InstructionSelector::VisitFloat64RoundUp(Node* node) { |
| 1603 | VisitRR(this, kArm64Float64RoundUp, node); |
| 1604 | } |
| 1605 | |
| 1606 | |
| 1607 | void InstructionSelector::VisitFloat32RoundTruncate(Node* node) { |
| 1608 | VisitRR(this, kArm64Float32RoundTruncate, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1609 | } |
| 1610 | |
| 1611 | |
| 1612 | void InstructionSelector::VisitFloat64RoundTruncate(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1613 | VisitRR(this, kArm64Float64RoundTruncate, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1614 | } |
| 1615 | |
| 1616 | |
| 1617 | void InstructionSelector::VisitFloat64RoundTiesAway(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1618 | VisitRR(this, kArm64Float64RoundTiesAway, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1619 | } |
| 1620 | |
| 1621 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1622 | void InstructionSelector::VisitFloat32RoundTiesEven(Node* node) { |
| 1623 | VisitRR(this, kArm64Float32RoundTiesEven, node); |
| 1624 | } |
| 1625 | |
| 1626 | |
| 1627 | void InstructionSelector::VisitFloat64RoundTiesEven(Node* node) { |
| 1628 | VisitRR(this, kArm64Float64RoundTiesEven, node); |
| 1629 | } |
| 1630 | |
| 1631 | |
| 1632 | void InstructionSelector::EmitPrepareArguments( |
| 1633 | ZoneVector<PushParameter>* arguments, const CallDescriptor* descriptor, |
| 1634 | Node* node) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1635 | Arm64OperandGenerator g(this); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1636 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1637 | bool from_native_stack = linkage()->GetIncomingDescriptor()->UseNativeStack(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1638 | bool to_native_stack = descriptor->UseNativeStack(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1639 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1640 | bool always_claim = to_native_stack != from_native_stack; |
| 1641 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1642 | int claim_count = static_cast<int>(arguments->size()); |
| 1643 | int slot = claim_count - 1; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1644 | // Bump the stack pointer(s). |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1645 | if (claim_count > 0 || always_claim) { |
| 1646 | // TODO(titzer): claim and poke probably take small immediates. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1647 | // TODO(titzer): it would be better to bump the csp here only |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1648 | // and emit paired stores with increment for non c frames. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1649 | ArchOpcode claim = to_native_stack ? kArm64ClaimCSP : kArm64ClaimJSSP; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1650 | // Claim(0) isn't a nop if there is a mismatch between CSP and JSSP. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1651 | Emit(claim, g.NoOutput(), g.TempImmediate(claim_count)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1652 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1653 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1654 | // Poke the arguments into the stack. |
| 1655 | ArchOpcode poke = to_native_stack ? kArm64PokeCSP : kArm64PokeJSSP; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1656 | while (slot >= 0) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1657 | Emit(poke, g.NoOutput(), g.UseRegister((*arguments)[slot].node()), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1658 | g.TempImmediate(slot)); |
| 1659 | slot--; |
| 1660 | // TODO(ahaas): Poke arguments in pairs if two subsequent arguments have the |
| 1661 | // same type. |
| 1662 | // Emit(kArm64PokePair, g.NoOutput(), g.UseRegister((*arguments)[slot]), |
| 1663 | // g.UseRegister((*arguments)[slot - 1]), g.TempImmediate(slot)); |
| 1664 | // slot -= 2; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1665 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1666 | } |
| 1667 | |
| 1668 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1669 | bool InstructionSelector::IsTailCallAddressImmediate() { return false; } |
| 1670 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1671 | int InstructionSelector::GetTempsCountForTailCallFromJSFunction() { return 3; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1672 | |
| 1673 | namespace { |
| 1674 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1675 | // Shared routine for multiple compare operations. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1676 | void VisitCompare(InstructionSelector* selector, InstructionCode opcode, |
| 1677 | InstructionOperand left, InstructionOperand right, |
| 1678 | FlagsContinuation* cont) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1679 | Arm64OperandGenerator g(selector); |
| 1680 | opcode = cont->Encode(opcode); |
| 1681 | if (cont->IsBranch()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1682 | selector->Emit(opcode, g.NoOutput(), left, right, |
| 1683 | g.Label(cont->true_block()), g.Label(cont->false_block())); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1684 | } else if (cont->IsDeoptimize()) { |
| 1685 | selector->EmitDeoptimize(opcode, g.NoOutput(), left, right, |
| 1686 | cont->frame_state()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1687 | } else { |
| 1688 | DCHECK(cont->IsSet()); |
| 1689 | selector->Emit(opcode, g.DefineAsRegister(cont->result()), left, right); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1690 | } |
| 1691 | } |
| 1692 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1693 | |
| 1694 | // Shared routine for multiple word compare operations. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1695 | void VisitWordCompare(InstructionSelector* selector, Node* node, |
| 1696 | InstructionCode opcode, FlagsContinuation* cont, |
| 1697 | bool commutative, ImmediateMode immediate_mode) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1698 | Arm64OperandGenerator g(selector); |
| 1699 | Node* left = node->InputAt(0); |
| 1700 | Node* right = node->InputAt(1); |
| 1701 | |
| 1702 | // Match immediates on left or right side of comparison. |
| 1703 | if (g.CanBeImmediate(right, immediate_mode)) { |
| 1704 | VisitCompare(selector, opcode, g.UseRegister(left), g.UseImmediate(right), |
| 1705 | cont); |
| 1706 | } else if (g.CanBeImmediate(left, immediate_mode)) { |
| 1707 | if (!commutative) cont->Commute(); |
| 1708 | VisitCompare(selector, opcode, g.UseRegister(right), g.UseImmediate(left), |
| 1709 | cont); |
| 1710 | } else { |
| 1711 | VisitCompare(selector, opcode, g.UseRegister(left), g.UseRegister(right), |
| 1712 | cont); |
| 1713 | } |
| 1714 | } |
| 1715 | |
| 1716 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1717 | void VisitWord32Compare(InstructionSelector* selector, Node* node, |
| 1718 | FlagsContinuation* cont) { |
| 1719 | Int32BinopMatcher m(node); |
| 1720 | ArchOpcode opcode = kArm64Cmp32; |
| 1721 | |
| 1722 | // Select negated compare for comparisons with negated right input. |
| 1723 | if (m.right().IsInt32Sub()) { |
| 1724 | Node* sub = m.right().node(); |
| 1725 | Int32BinopMatcher msub(sub); |
| 1726 | if (msub.left().Is(0)) { |
| 1727 | bool can_cover = selector->CanCover(node, sub); |
| 1728 | node->ReplaceInput(1, msub.right().node()); |
| 1729 | // Even if the comparison node covers the subtraction, after the input |
| 1730 | // replacement above, the node still won't cover the input to the |
| 1731 | // subtraction; the subtraction still uses it. |
| 1732 | // In order to get shifted operations to work, we must remove the rhs |
| 1733 | // input to the subtraction, as TryMatchAnyShift requires this node to |
| 1734 | // cover the input shift. We do this by setting it to the lhs input, |
| 1735 | // as we know it's zero, and the result of the subtraction isn't used by |
| 1736 | // any other node. |
| 1737 | if (can_cover) sub->ReplaceInput(1, msub.left().node()); |
| 1738 | opcode = kArm64Cmn32; |
| 1739 | } |
| 1740 | } |
| 1741 | VisitBinop<Int32BinopMatcher>(selector, node, opcode, kArithmeticImm, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1742 | } |
| 1743 | |
| 1744 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1745 | void VisitWordTest(InstructionSelector* selector, Node* node, |
| 1746 | InstructionCode opcode, FlagsContinuation* cont) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1747 | Arm64OperandGenerator g(selector); |
| 1748 | VisitCompare(selector, opcode, g.UseRegister(node), g.UseRegister(node), |
| 1749 | cont); |
| 1750 | } |
| 1751 | |
| 1752 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1753 | void VisitWord32Test(InstructionSelector* selector, Node* node, |
| 1754 | FlagsContinuation* cont) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1755 | VisitWordTest(selector, node, kArm64Tst32, cont); |
| 1756 | } |
| 1757 | |
| 1758 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1759 | void VisitWord64Test(InstructionSelector* selector, Node* node, |
| 1760 | FlagsContinuation* cont) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1761 | VisitWordTest(selector, node, kArm64Tst, cont); |
| 1762 | } |
| 1763 | |
| 1764 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1765 | // Shared routine for multiple float32 compare operations. |
| 1766 | void VisitFloat32Compare(InstructionSelector* selector, Node* node, |
| 1767 | FlagsContinuation* cont) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1768 | Arm64OperandGenerator g(selector); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1769 | Float32BinopMatcher m(node); |
| 1770 | if (m.right().Is(0.0f)) { |
| 1771 | VisitCompare(selector, kArm64Float32Cmp, g.UseRegister(m.left().node()), |
| 1772 | g.UseImmediate(m.right().node()), cont); |
| 1773 | } else if (m.left().Is(0.0f)) { |
| 1774 | cont->Commute(); |
| 1775 | VisitCompare(selector, kArm64Float32Cmp, g.UseRegister(m.right().node()), |
| 1776 | g.UseImmediate(m.left().node()), cont); |
| 1777 | } else { |
| 1778 | VisitCompare(selector, kArm64Float32Cmp, g.UseRegister(m.left().node()), |
| 1779 | g.UseRegister(m.right().node()), cont); |
| 1780 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1781 | } |
| 1782 | |
| 1783 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1784 | // Shared routine for multiple float64 compare operations. |
| 1785 | void VisitFloat64Compare(InstructionSelector* selector, Node* node, |
| 1786 | FlagsContinuation* cont) { |
| 1787 | Arm64OperandGenerator g(selector); |
| 1788 | Float64BinopMatcher m(node); |
| 1789 | if (m.right().Is(0.0)) { |
| 1790 | VisitCompare(selector, kArm64Float64Cmp, g.UseRegister(m.left().node()), |
| 1791 | g.UseImmediate(m.right().node()), cont); |
| 1792 | } else if (m.left().Is(0.0)) { |
| 1793 | cont->Commute(); |
| 1794 | VisitCompare(selector, kArm64Float64Cmp, g.UseRegister(m.right().node()), |
| 1795 | g.UseImmediate(m.left().node()), cont); |
| 1796 | } else { |
| 1797 | VisitCompare(selector, kArm64Float64Cmp, g.UseRegister(m.left().node()), |
| 1798 | g.UseRegister(m.right().node()), cont); |
| 1799 | } |
| 1800 | } |
| 1801 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1802 | void VisitWordCompareZero(InstructionSelector* selector, Node* user, |
| 1803 | Node* value, FlagsContinuation* cont) { |
| 1804 | Arm64OperandGenerator g(selector); |
| 1805 | while (selector->CanCover(user, value)) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1806 | switch (value->opcode()) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1807 | case IrOpcode::kWord32Equal: { |
| 1808 | Int32BinopMatcher m(value); |
| 1809 | if (m.right().Is(0)) { |
| 1810 | user = value; |
| 1811 | value = m.left().node(); |
| 1812 | cont->Negate(); |
| 1813 | continue; |
| 1814 | } |
| 1815 | cont->OverwriteAndNegateIfEqual(kEqual); |
| 1816 | return VisitWord32Compare(selector, value, cont); |
| 1817 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1818 | case IrOpcode::kInt32LessThan: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1819 | cont->OverwriteAndNegateIfEqual(kSignedLessThan); |
| 1820 | return VisitWord32Compare(selector, value, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1821 | case IrOpcode::kInt32LessThanOrEqual: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1822 | cont->OverwriteAndNegateIfEqual(kSignedLessThanOrEqual); |
| 1823 | return VisitWord32Compare(selector, value, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1824 | case IrOpcode::kUint32LessThan: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1825 | cont->OverwriteAndNegateIfEqual(kUnsignedLessThan); |
| 1826 | return VisitWord32Compare(selector, value, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1827 | case IrOpcode::kUint32LessThanOrEqual: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1828 | cont->OverwriteAndNegateIfEqual(kUnsignedLessThanOrEqual); |
| 1829 | return VisitWord32Compare(selector, value, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1830 | case IrOpcode::kWord64Equal: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1831 | cont->OverwriteAndNegateIfEqual(kEqual); |
| 1832 | return VisitWordCompare(selector, value, kArm64Cmp, cont, false, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1833 | kArithmeticImm); |
| 1834 | case IrOpcode::kInt64LessThan: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1835 | cont->OverwriteAndNegateIfEqual(kSignedLessThan); |
| 1836 | return VisitWordCompare(selector, value, kArm64Cmp, cont, false, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1837 | kArithmeticImm); |
| 1838 | case IrOpcode::kInt64LessThanOrEqual: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1839 | cont->OverwriteAndNegateIfEqual(kSignedLessThanOrEqual); |
| 1840 | return VisitWordCompare(selector, value, kArm64Cmp, cont, false, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1841 | kArithmeticImm); |
| 1842 | case IrOpcode::kUint64LessThan: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1843 | cont->OverwriteAndNegateIfEqual(kUnsignedLessThan); |
| 1844 | return VisitWordCompare(selector, value, kArm64Cmp, cont, false, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1845 | kArithmeticImm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1846 | case IrOpcode::kUint64LessThanOrEqual: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1847 | cont->OverwriteAndNegateIfEqual(kUnsignedLessThanOrEqual); |
| 1848 | return VisitWordCompare(selector, value, kArm64Cmp, cont, false, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1849 | kArithmeticImm); |
| 1850 | case IrOpcode::kFloat32Equal: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1851 | cont->OverwriteAndNegateIfEqual(kEqual); |
| 1852 | return VisitFloat32Compare(selector, value, cont); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1853 | case IrOpcode::kFloat32LessThan: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1854 | cont->OverwriteAndNegateIfEqual(kFloatLessThan); |
| 1855 | return VisitFloat32Compare(selector, value, cont); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1856 | case IrOpcode::kFloat32LessThanOrEqual: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1857 | cont->OverwriteAndNegateIfEqual(kFloatLessThanOrEqual); |
| 1858 | return VisitFloat32Compare(selector, value, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1859 | case IrOpcode::kFloat64Equal: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1860 | cont->OverwriteAndNegateIfEqual(kEqual); |
| 1861 | return VisitFloat64Compare(selector, value, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1862 | case IrOpcode::kFloat64LessThan: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1863 | cont->OverwriteAndNegateIfEqual(kFloatLessThan); |
| 1864 | return VisitFloat64Compare(selector, value, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1865 | case IrOpcode::kFloat64LessThanOrEqual: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1866 | cont->OverwriteAndNegateIfEqual(kFloatLessThanOrEqual); |
| 1867 | return VisitFloat64Compare(selector, value, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1868 | case IrOpcode::kProjection: |
| 1869 | // Check if this is the overflow output projection of an |
| 1870 | // <Operation>WithOverflow node. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1871 | if (ProjectionIndexOf(value->op()) == 1u) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1872 | // We cannot combine the <Operation>WithOverflow with this branch |
| 1873 | // unless the 0th projection (the use of the actual value of the |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1874 | // <Operation> is either nullptr, which means there's no use of the |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1875 | // actual value, or was already defined, which means it is scheduled |
| 1876 | // *AFTER* this branch). |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1877 | Node* const node = value->InputAt(0); |
| 1878 | Node* const result = NodeProperties::FindProjection(node, 0); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1879 | if (result == nullptr || selector->IsDefined(result)) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1880 | switch (node->opcode()) { |
| 1881 | case IrOpcode::kInt32AddWithOverflow: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1882 | cont->OverwriteAndNegateIfEqual(kOverflow); |
| 1883 | return VisitBinop<Int32BinopMatcher>( |
| 1884 | selector, node, kArm64Add32, kArithmeticImm, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1885 | case IrOpcode::kInt32SubWithOverflow: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1886 | cont->OverwriteAndNegateIfEqual(kOverflow); |
| 1887 | return VisitBinop<Int32BinopMatcher>( |
| 1888 | selector, node, kArm64Sub32, kArithmeticImm, cont); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1889 | case IrOpcode::kInt64AddWithOverflow: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1890 | cont->OverwriteAndNegateIfEqual(kOverflow); |
| 1891 | return VisitBinop<Int64BinopMatcher>(selector, node, kArm64Add, |
| 1892 | kArithmeticImm, cont); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1893 | case IrOpcode::kInt64SubWithOverflow: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1894 | cont->OverwriteAndNegateIfEqual(kOverflow); |
| 1895 | return VisitBinop<Int64BinopMatcher>(selector, node, kArm64Sub, |
| 1896 | kArithmeticImm, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1897 | default: |
| 1898 | break; |
| 1899 | } |
| 1900 | } |
| 1901 | } |
| 1902 | break; |
| 1903 | case IrOpcode::kInt32Add: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1904 | return VisitWordCompare(selector, value, kArm64Cmn32, cont, true, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1905 | kArithmeticImm); |
| 1906 | case IrOpcode::kInt32Sub: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1907 | return VisitWord32Compare(selector, value, cont); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1908 | case IrOpcode::kWord32And: { |
| 1909 | Int32BinopMatcher m(value); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1910 | if (cont->IsBranch() && m.right().HasValue() && |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1911 | (base::bits::CountPopulation32(m.right().Value()) == 1)) { |
| 1912 | // If the mask has only one bit set, we can use tbz/tbnz. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1913 | DCHECK((cont->condition() == kEqual) || |
| 1914 | (cont->condition() == kNotEqual)); |
| 1915 | selector->Emit( |
| 1916 | cont->Encode(kArm64TestAndBranch32), g.NoOutput(), |
| 1917 | g.UseRegister(m.left().node()), |
| 1918 | g.TempImmediate( |
| 1919 | base::bits::CountTrailingZeros32(m.right().Value())), |
| 1920 | g.Label(cont->true_block()), g.Label(cont->false_block())); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1921 | return; |
| 1922 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1923 | return VisitWordCompare(selector, value, kArm64Tst32, cont, true, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1924 | kLogical32Imm); |
| 1925 | } |
| 1926 | case IrOpcode::kWord64And: { |
| 1927 | Int64BinopMatcher m(value); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1928 | if (cont->IsBranch() && m.right().HasValue() && |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1929 | (base::bits::CountPopulation64(m.right().Value()) == 1)) { |
| 1930 | // If the mask has only one bit set, we can use tbz/tbnz. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1931 | DCHECK((cont->condition() == kEqual) || |
| 1932 | (cont->condition() == kNotEqual)); |
| 1933 | selector->Emit( |
| 1934 | cont->Encode(kArm64TestAndBranch), g.NoOutput(), |
| 1935 | g.UseRegister(m.left().node()), |
| 1936 | g.TempImmediate( |
| 1937 | base::bits::CountTrailingZeros64(m.right().Value())), |
| 1938 | g.Label(cont->true_block()), g.Label(cont->false_block())); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1939 | return; |
| 1940 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1941 | return VisitWordCompare(selector, value, kArm64Tst, cont, true, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1942 | kLogical64Imm); |
| 1943 | } |
| 1944 | default: |
| 1945 | break; |
| 1946 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1947 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1948 | } |
| 1949 | |
| 1950 | // Branch could not be combined with a compare, compare against 0 and branch. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1951 | if (cont->IsBranch()) { |
| 1952 | selector->Emit(cont->Encode(kArm64CompareAndBranch32), g.NoOutput(), |
| 1953 | g.UseRegister(value), g.Label(cont->true_block()), |
| 1954 | g.Label(cont->false_block())); |
| 1955 | } else { |
| 1956 | DCHECK(cont->IsDeoptimize()); |
| 1957 | selector->EmitDeoptimize(cont->Encode(kArm64Tst32), g.NoOutput(), |
| 1958 | g.UseRegister(value), g.UseRegister(value), |
| 1959 | cont->frame_state()); |
| 1960 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1961 | } |
| 1962 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1963 | } // namespace |
| 1964 | |
| 1965 | void InstructionSelector::VisitBranch(Node* branch, BasicBlock* tbranch, |
| 1966 | BasicBlock* fbranch) { |
| 1967 | FlagsContinuation cont(kNotEqual, tbranch, fbranch); |
| 1968 | VisitWordCompareZero(this, branch, branch->InputAt(0), &cont); |
| 1969 | } |
| 1970 | |
| 1971 | void InstructionSelector::VisitDeoptimizeIf(Node* node) { |
| 1972 | FlagsContinuation cont = |
| 1973 | FlagsContinuation::ForDeoptimize(kNotEqual, node->InputAt(1)); |
| 1974 | VisitWordCompareZero(this, node, node->InputAt(0), &cont); |
| 1975 | } |
| 1976 | |
| 1977 | void InstructionSelector::VisitDeoptimizeUnless(Node* node) { |
| 1978 | FlagsContinuation cont = |
| 1979 | FlagsContinuation::ForDeoptimize(kEqual, node->InputAt(1)); |
| 1980 | VisitWordCompareZero(this, node, node->InputAt(0), &cont); |
| 1981 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1982 | |
| 1983 | void InstructionSelector::VisitSwitch(Node* node, const SwitchInfo& sw) { |
| 1984 | Arm64OperandGenerator g(this); |
| 1985 | InstructionOperand value_operand = g.UseRegister(node->InputAt(0)); |
| 1986 | |
| 1987 | // Emit either ArchTableSwitch or ArchLookupSwitch. |
| 1988 | size_t table_space_cost = 4 + sw.value_range; |
| 1989 | size_t table_time_cost = 3; |
| 1990 | size_t lookup_space_cost = 3 + 2 * sw.case_count; |
| 1991 | size_t lookup_time_cost = sw.case_count; |
| 1992 | if (sw.case_count > 0 && |
| 1993 | table_space_cost + 3 * table_time_cost <= |
| 1994 | lookup_space_cost + 3 * lookup_time_cost && |
| 1995 | sw.min_value > std::numeric_limits<int32_t>::min()) { |
| 1996 | InstructionOperand index_operand = value_operand; |
| 1997 | if (sw.min_value) { |
| 1998 | index_operand = g.TempRegister(); |
| 1999 | Emit(kArm64Sub32, index_operand, value_operand, |
| 2000 | g.TempImmediate(sw.min_value)); |
| 2001 | } |
| 2002 | // Generate a table lookup. |
| 2003 | return EmitTableSwitch(sw, index_operand); |
| 2004 | } |
| 2005 | |
| 2006 | // Generate a sequence of conditional jumps. |
| 2007 | return EmitLookupSwitch(sw, value_operand); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2008 | } |
| 2009 | |
| 2010 | |
| 2011 | void InstructionSelector::VisitWord32Equal(Node* const node) { |
| 2012 | Node* const user = node; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2013 | FlagsContinuation cont = FlagsContinuation::ForSet(kEqual, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2014 | Int32BinopMatcher m(user); |
| 2015 | if (m.right().Is(0)) { |
| 2016 | Node* const value = m.left().node(); |
| 2017 | if (CanCover(user, value)) { |
| 2018 | switch (value->opcode()) { |
| 2019 | case IrOpcode::kInt32Add: |
| 2020 | return VisitWordCompare(this, value, kArm64Cmn32, &cont, true, |
| 2021 | kArithmeticImm); |
| 2022 | case IrOpcode::kInt32Sub: |
| 2023 | return VisitWordCompare(this, value, kArm64Cmp32, &cont, false, |
| 2024 | kArithmeticImm); |
| 2025 | case IrOpcode::kWord32And: |
| 2026 | return VisitWordCompare(this, value, kArm64Tst32, &cont, true, |
| 2027 | kLogical32Imm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2028 | case IrOpcode::kWord32Equal: { |
| 2029 | // Word32Equal(Word32Equal(x, y), 0) => Word32Compare(x, y, ne). |
| 2030 | Int32BinopMatcher mequal(value); |
| 2031 | node->ReplaceInput(0, mequal.left().node()); |
| 2032 | node->ReplaceInput(1, mequal.right().node()); |
| 2033 | cont.Negate(); |
| 2034 | return VisitWord32Compare(this, node, &cont); |
| 2035 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2036 | default: |
| 2037 | break; |
| 2038 | } |
| 2039 | return VisitWord32Test(this, value, &cont); |
| 2040 | } |
| 2041 | } |
| 2042 | VisitWord32Compare(this, node, &cont); |
| 2043 | } |
| 2044 | |
| 2045 | |
| 2046 | void InstructionSelector::VisitInt32LessThan(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2047 | FlagsContinuation cont = FlagsContinuation::ForSet(kSignedLessThan, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2048 | VisitWord32Compare(this, node, &cont); |
| 2049 | } |
| 2050 | |
| 2051 | |
| 2052 | void InstructionSelector::VisitInt32LessThanOrEqual(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2053 | FlagsContinuation cont = |
| 2054 | FlagsContinuation::ForSet(kSignedLessThanOrEqual, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2055 | VisitWord32Compare(this, node, &cont); |
| 2056 | } |
| 2057 | |
| 2058 | |
| 2059 | void InstructionSelector::VisitUint32LessThan(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2060 | FlagsContinuation cont = FlagsContinuation::ForSet(kUnsignedLessThan, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2061 | VisitWord32Compare(this, node, &cont); |
| 2062 | } |
| 2063 | |
| 2064 | |
| 2065 | void InstructionSelector::VisitUint32LessThanOrEqual(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2066 | FlagsContinuation cont = |
| 2067 | FlagsContinuation::ForSet(kUnsignedLessThanOrEqual, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2068 | VisitWord32Compare(this, node, &cont); |
| 2069 | } |
| 2070 | |
| 2071 | |
| 2072 | void InstructionSelector::VisitWord64Equal(Node* const node) { |
| 2073 | Node* const user = node; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2074 | FlagsContinuation cont = FlagsContinuation::ForSet(kEqual, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2075 | Int64BinopMatcher m(user); |
| 2076 | if (m.right().Is(0)) { |
| 2077 | Node* const value = m.left().node(); |
| 2078 | if (CanCover(user, value)) { |
| 2079 | switch (value->opcode()) { |
| 2080 | case IrOpcode::kWord64And: |
| 2081 | return VisitWordCompare(this, value, kArm64Tst, &cont, true, |
| 2082 | kLogical64Imm); |
| 2083 | default: |
| 2084 | break; |
| 2085 | } |
| 2086 | return VisitWord64Test(this, value, &cont); |
| 2087 | } |
| 2088 | } |
| 2089 | VisitWordCompare(this, node, kArm64Cmp, &cont, false, kArithmeticImm); |
| 2090 | } |
| 2091 | |
| 2092 | |
| 2093 | void InstructionSelector::VisitInt32AddWithOverflow(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2094 | if (Node* ovf = NodeProperties::FindProjection(node, 1)) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2095 | FlagsContinuation cont = FlagsContinuation::ForSet(kOverflow, ovf); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2096 | return VisitBinop<Int32BinopMatcher>(this, node, kArm64Add32, |
| 2097 | kArithmeticImm, &cont); |
| 2098 | } |
| 2099 | FlagsContinuation cont; |
| 2100 | VisitBinop<Int32BinopMatcher>(this, node, kArm64Add32, kArithmeticImm, &cont); |
| 2101 | } |
| 2102 | |
| 2103 | |
| 2104 | void InstructionSelector::VisitInt32SubWithOverflow(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2105 | if (Node* ovf = NodeProperties::FindProjection(node, 1)) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2106 | FlagsContinuation cont = FlagsContinuation::ForSet(kOverflow, ovf); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2107 | return VisitBinop<Int32BinopMatcher>(this, node, kArm64Sub32, |
| 2108 | kArithmeticImm, &cont); |
| 2109 | } |
| 2110 | FlagsContinuation cont; |
| 2111 | VisitBinop<Int32BinopMatcher>(this, node, kArm64Sub32, kArithmeticImm, &cont); |
| 2112 | } |
| 2113 | |
| 2114 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2115 | void InstructionSelector::VisitInt64AddWithOverflow(Node* node) { |
| 2116 | if (Node* ovf = NodeProperties::FindProjection(node, 1)) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2117 | FlagsContinuation cont = FlagsContinuation::ForSet(kOverflow, ovf); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2118 | return VisitBinop<Int64BinopMatcher>(this, node, kArm64Add, kArithmeticImm, |
| 2119 | &cont); |
| 2120 | } |
| 2121 | FlagsContinuation cont; |
| 2122 | VisitBinop<Int64BinopMatcher>(this, node, kArm64Add, kArithmeticImm, &cont); |
| 2123 | } |
| 2124 | |
| 2125 | |
| 2126 | void InstructionSelector::VisitInt64SubWithOverflow(Node* node) { |
| 2127 | if (Node* ovf = NodeProperties::FindProjection(node, 1)) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2128 | FlagsContinuation cont = FlagsContinuation::ForSet(kOverflow, ovf); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2129 | return VisitBinop<Int64BinopMatcher>(this, node, kArm64Sub, kArithmeticImm, |
| 2130 | &cont); |
| 2131 | } |
| 2132 | FlagsContinuation cont; |
| 2133 | VisitBinop<Int64BinopMatcher>(this, node, kArm64Sub, kArithmeticImm, &cont); |
| 2134 | } |
| 2135 | |
| 2136 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2137 | void InstructionSelector::VisitInt64LessThan(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2138 | FlagsContinuation cont = FlagsContinuation::ForSet(kSignedLessThan, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2139 | VisitWordCompare(this, node, kArm64Cmp, &cont, false, kArithmeticImm); |
| 2140 | } |
| 2141 | |
| 2142 | |
| 2143 | void InstructionSelector::VisitInt64LessThanOrEqual(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2144 | FlagsContinuation cont = |
| 2145 | FlagsContinuation::ForSet(kSignedLessThanOrEqual, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2146 | VisitWordCompare(this, node, kArm64Cmp, &cont, false, kArithmeticImm); |
| 2147 | } |
| 2148 | |
| 2149 | |
| 2150 | void InstructionSelector::VisitUint64LessThan(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2151 | FlagsContinuation cont = FlagsContinuation::ForSet(kUnsignedLessThan, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2152 | VisitWordCompare(this, node, kArm64Cmp, &cont, false, kArithmeticImm); |
| 2153 | } |
| 2154 | |
| 2155 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2156 | void InstructionSelector::VisitUint64LessThanOrEqual(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2157 | FlagsContinuation cont = |
| 2158 | FlagsContinuation::ForSet(kUnsignedLessThanOrEqual, node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2159 | VisitWordCompare(this, node, kArm64Cmp, &cont, false, kArithmeticImm); |
| 2160 | } |
| 2161 | |
| 2162 | |
| 2163 | void InstructionSelector::VisitFloat32Equal(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2164 | FlagsContinuation cont = FlagsContinuation::ForSet(kEqual, node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2165 | VisitFloat32Compare(this, node, &cont); |
| 2166 | } |
| 2167 | |
| 2168 | |
| 2169 | void InstructionSelector::VisitFloat32LessThan(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2170 | FlagsContinuation cont = FlagsContinuation::ForSet(kFloatLessThan, node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2171 | VisitFloat32Compare(this, node, &cont); |
| 2172 | } |
| 2173 | |
| 2174 | |
| 2175 | void InstructionSelector::VisitFloat32LessThanOrEqual(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2176 | FlagsContinuation cont = |
| 2177 | FlagsContinuation::ForSet(kFloatLessThanOrEqual, node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2178 | VisitFloat32Compare(this, node, &cont); |
| 2179 | } |
| 2180 | |
| 2181 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2182 | void InstructionSelector::VisitFloat64Equal(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2183 | FlagsContinuation cont = FlagsContinuation::ForSet(kEqual, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2184 | VisitFloat64Compare(this, node, &cont); |
| 2185 | } |
| 2186 | |
| 2187 | |
| 2188 | void InstructionSelector::VisitFloat64LessThan(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2189 | FlagsContinuation cont = FlagsContinuation::ForSet(kFloatLessThan, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2190 | VisitFloat64Compare(this, node, &cont); |
| 2191 | } |
| 2192 | |
| 2193 | |
| 2194 | void InstructionSelector::VisitFloat64LessThanOrEqual(Node* node) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 2195 | FlagsContinuation cont = |
| 2196 | FlagsContinuation::ForSet(kFloatLessThanOrEqual, node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2197 | VisitFloat64Compare(this, node, &cont); |
| 2198 | } |
| 2199 | |
| 2200 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2201 | void InstructionSelector::VisitFloat64ExtractLowWord32(Node* node) { |
| 2202 | Arm64OperandGenerator g(this); |
| 2203 | Emit(kArm64Float64ExtractLowWord32, g.DefineAsRegister(node), |
| 2204 | g.UseRegister(node->InputAt(0))); |
| 2205 | } |
| 2206 | |
| 2207 | |
| 2208 | void InstructionSelector::VisitFloat64ExtractHighWord32(Node* node) { |
| 2209 | Arm64OperandGenerator g(this); |
| 2210 | Emit(kArm64Float64ExtractHighWord32, g.DefineAsRegister(node), |
| 2211 | g.UseRegister(node->InputAt(0))); |
| 2212 | } |
| 2213 | |
| 2214 | |
| 2215 | void InstructionSelector::VisitFloat64InsertLowWord32(Node* node) { |
| 2216 | Arm64OperandGenerator g(this); |
| 2217 | Node* left = node->InputAt(0); |
| 2218 | Node* right = node->InputAt(1); |
| 2219 | if (left->opcode() == IrOpcode::kFloat64InsertHighWord32 && |
| 2220 | CanCover(node, left)) { |
| 2221 | Node* right_of_left = left->InputAt(1); |
| 2222 | Emit(kArm64Bfi, g.DefineSameAsFirst(right), g.UseRegister(right), |
| 2223 | g.UseRegister(right_of_left), g.TempImmediate(32), |
| 2224 | g.TempImmediate(32)); |
| 2225 | Emit(kArm64Float64MoveU64, g.DefineAsRegister(node), g.UseRegister(right)); |
| 2226 | return; |
| 2227 | } |
| 2228 | Emit(kArm64Float64InsertLowWord32, g.DefineAsRegister(node), |
| 2229 | g.UseRegister(left), g.UseRegister(right)); |
| 2230 | } |
| 2231 | |
| 2232 | |
| 2233 | void InstructionSelector::VisitFloat64InsertHighWord32(Node* node) { |
| 2234 | Arm64OperandGenerator g(this); |
| 2235 | Node* left = node->InputAt(0); |
| 2236 | Node* right = node->InputAt(1); |
| 2237 | if (left->opcode() == IrOpcode::kFloat64InsertLowWord32 && |
| 2238 | CanCover(node, left)) { |
| 2239 | Node* right_of_left = left->InputAt(1); |
| 2240 | Emit(kArm64Bfi, g.DefineSameAsFirst(left), g.UseRegister(right_of_left), |
| 2241 | g.UseRegister(right), g.TempImmediate(32), g.TempImmediate(32)); |
| 2242 | Emit(kArm64Float64MoveU64, g.DefineAsRegister(node), g.UseRegister(left)); |
| 2243 | return; |
| 2244 | } |
| 2245 | Emit(kArm64Float64InsertHighWord32, g.DefineAsRegister(node), |
| 2246 | g.UseRegister(left), g.UseRegister(right)); |
| 2247 | } |
| 2248 | |
| 2249 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2250 | // static |
| 2251 | MachineOperatorBuilder::Flags |
| 2252 | InstructionSelector::SupportedMachineOperatorFlags() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2253 | return MachineOperatorBuilder::kFloat32Max | |
| 2254 | MachineOperatorBuilder::kFloat32Min | |
| 2255 | MachineOperatorBuilder::kFloat32RoundDown | |
| 2256 | MachineOperatorBuilder::kFloat64Max | |
| 2257 | MachineOperatorBuilder::kFloat64Min | |
| 2258 | MachineOperatorBuilder::kFloat64RoundDown | |
| 2259 | MachineOperatorBuilder::kFloat32RoundUp | |
| 2260 | MachineOperatorBuilder::kFloat64RoundUp | |
| 2261 | MachineOperatorBuilder::kFloat32RoundTruncate | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2262 | MachineOperatorBuilder::kFloat64RoundTruncate | |
| 2263 | MachineOperatorBuilder::kFloat64RoundTiesAway | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2264 | MachineOperatorBuilder::kFloat32RoundTiesEven | |
| 2265 | MachineOperatorBuilder::kFloat64RoundTiesEven | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2266 | MachineOperatorBuilder::kWord32ShiftIsSafe | |
| 2267 | MachineOperatorBuilder::kInt32DivIsSafe | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2268 | MachineOperatorBuilder::kUint32DivIsSafe | |
| 2269 | MachineOperatorBuilder::kWord32ReverseBits | |
| 2270 | MachineOperatorBuilder::kWord64ReverseBits; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2271 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2272 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2273 | } // namespace compiler |
| 2274 | } // namespace internal |
| 2275 | } // namespace v8 |