Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2013 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/code-generator.h" |
| 6 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 7 | #include "src/ast/scopes.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8 | #include "src/compiler/code-generator-impl.h" |
| 9 | #include "src/compiler/gap-resolver.h" |
| 10 | #include "src/compiler/node-matchers.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 11 | #include "src/compiler/osr.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 12 | #include "src/ia32/assembler-ia32.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 13 | #include "src/ia32/frames-ia32.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 14 | #include "src/ia32/macro-assembler-ia32.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 15 | |
| 16 | namespace v8 { |
| 17 | namespace internal { |
| 18 | namespace compiler { |
| 19 | |
| 20 | #define __ masm()-> |
| 21 | |
| 22 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 23 | #define kScratchDoubleReg xmm0 |
| 24 | |
| 25 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 26 | // Adds IA-32 specific methods for decoding operands. |
| 27 | class IA32OperandConverter : public InstructionOperandConverter { |
| 28 | public: |
| 29 | IA32OperandConverter(CodeGenerator* gen, Instruction* instr) |
| 30 | : InstructionOperandConverter(gen, instr) {} |
| 31 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 32 | Operand InputOperand(size_t index, int extra = 0) { |
| 33 | return ToOperand(instr_->InputAt(index), extra); |
| 34 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 35 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 36 | Immediate InputImmediate(size_t index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 37 | return ToImmediate(instr_->InputAt(index)); |
| 38 | } |
| 39 | |
| 40 | Operand OutputOperand() { return ToOperand(instr_->Output()); } |
| 41 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 42 | Operand ToOperand(InstructionOperand* op, int extra = 0) { |
| 43 | if (op->IsRegister()) { |
| 44 | DCHECK(extra == 0); |
| 45 | return Operand(ToRegister(op)); |
| 46 | } else if (op->IsDoubleRegister()) { |
| 47 | DCHECK(extra == 0); |
| 48 | return Operand(ToDoubleRegister(op)); |
| 49 | } |
| 50 | DCHECK(op->IsStackSlot() || op->IsDoubleStackSlot()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 51 | FrameOffset offset = frame_access_state()->GetFrameOffset( |
| 52 | AllocatedOperand::cast(op)->index()); |
| 53 | return Operand(offset.from_stack_pointer() ? esp : ebp, |
| 54 | offset.offset() + extra); |
| 55 | } |
| 56 | |
| 57 | Operand ToMaterializableOperand(int materializable_offset) { |
| 58 | FrameOffset offset = frame_access_state()->GetFrameOffset( |
| 59 | Frame::FPOffsetToSlot(materializable_offset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 60 | return Operand(offset.from_stack_pointer() ? esp : ebp, offset.offset()); |
| 61 | } |
| 62 | |
| 63 | Operand HighOperand(InstructionOperand* op) { |
| 64 | DCHECK(op->IsDoubleStackSlot()); |
| 65 | return ToOperand(op, kPointerSize); |
| 66 | } |
| 67 | |
| 68 | Immediate ToImmediate(InstructionOperand* operand) { |
| 69 | Constant constant = ToConstant(operand); |
| 70 | switch (constant.type()) { |
| 71 | case Constant::kInt32: |
| 72 | return Immediate(constant.ToInt32()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 73 | case Constant::kFloat32: |
| 74 | return Immediate( |
| 75 | isolate()->factory()->NewNumber(constant.ToFloat32(), TENURED)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 76 | case Constant::kFloat64: |
| 77 | return Immediate( |
| 78 | isolate()->factory()->NewNumber(constant.ToFloat64(), TENURED)); |
| 79 | case Constant::kExternalReference: |
| 80 | return Immediate(constant.ToExternalReference()); |
| 81 | case Constant::kHeapObject: |
| 82 | return Immediate(constant.ToHeapObject()); |
| 83 | case Constant::kInt64: |
| 84 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 85 | case Constant::kRpoNumber: |
| 86 | return Immediate::CodeRelativeOffset(ToLabel(operand)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 87 | } |
| 88 | UNREACHABLE(); |
| 89 | return Immediate(-1); |
| 90 | } |
| 91 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 92 | static size_t NextOffset(size_t* offset) { |
| 93 | size_t i = *offset; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 94 | (*offset)++; |
| 95 | return i; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 96 | } |
| 97 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 98 | static ScaleFactor ScaleFor(AddressingMode one, AddressingMode mode) { |
| 99 | STATIC_ASSERT(0 == static_cast<int>(times_1)); |
| 100 | STATIC_ASSERT(1 == static_cast<int>(times_2)); |
| 101 | STATIC_ASSERT(2 == static_cast<int>(times_4)); |
| 102 | STATIC_ASSERT(3 == static_cast<int>(times_8)); |
| 103 | int scale = static_cast<int>(mode - one); |
| 104 | DCHECK(scale >= 0 && scale < 4); |
| 105 | return static_cast<ScaleFactor>(scale); |
| 106 | } |
| 107 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 108 | Operand MemoryOperand(size_t* offset) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 109 | AddressingMode mode = AddressingModeField::decode(instr_->opcode()); |
| 110 | switch (mode) { |
| 111 | case kMode_MR: { |
| 112 | Register base = InputRegister(NextOffset(offset)); |
| 113 | int32_t disp = 0; |
| 114 | return Operand(base, disp); |
| 115 | } |
| 116 | case kMode_MRI: { |
| 117 | Register base = InputRegister(NextOffset(offset)); |
| 118 | int32_t disp = InputInt32(NextOffset(offset)); |
| 119 | return Operand(base, disp); |
| 120 | } |
| 121 | case kMode_MR1: |
| 122 | case kMode_MR2: |
| 123 | case kMode_MR4: |
| 124 | case kMode_MR8: { |
| 125 | Register base = InputRegister(NextOffset(offset)); |
| 126 | Register index = InputRegister(NextOffset(offset)); |
| 127 | ScaleFactor scale = ScaleFor(kMode_MR1, mode); |
| 128 | int32_t disp = 0; |
| 129 | return Operand(base, index, scale, disp); |
| 130 | } |
| 131 | case kMode_MR1I: |
| 132 | case kMode_MR2I: |
| 133 | case kMode_MR4I: |
| 134 | case kMode_MR8I: { |
| 135 | Register base = InputRegister(NextOffset(offset)); |
| 136 | Register index = InputRegister(NextOffset(offset)); |
| 137 | ScaleFactor scale = ScaleFor(kMode_MR1I, mode); |
| 138 | int32_t disp = InputInt32(NextOffset(offset)); |
| 139 | return Operand(base, index, scale, disp); |
| 140 | } |
| 141 | case kMode_M1: |
| 142 | case kMode_M2: |
| 143 | case kMode_M4: |
| 144 | case kMode_M8: { |
| 145 | Register index = InputRegister(NextOffset(offset)); |
| 146 | ScaleFactor scale = ScaleFor(kMode_M1, mode); |
| 147 | int32_t disp = 0; |
| 148 | return Operand(index, scale, disp); |
| 149 | } |
| 150 | case kMode_M1I: |
| 151 | case kMode_M2I: |
| 152 | case kMode_M4I: |
| 153 | case kMode_M8I: { |
| 154 | Register index = InputRegister(NextOffset(offset)); |
| 155 | ScaleFactor scale = ScaleFor(kMode_M1I, mode); |
| 156 | int32_t disp = InputInt32(NextOffset(offset)); |
| 157 | return Operand(index, scale, disp); |
| 158 | } |
| 159 | case kMode_MI: { |
| 160 | int32_t disp = InputInt32(NextOffset(offset)); |
| 161 | return Operand(Immediate(disp)); |
| 162 | } |
| 163 | case kMode_None: |
| 164 | UNREACHABLE(); |
| 165 | return Operand(no_reg, 0); |
| 166 | } |
| 167 | UNREACHABLE(); |
| 168 | return Operand(no_reg, 0); |
| 169 | } |
| 170 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 171 | Operand MemoryOperand(size_t first_input = 0) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 172 | return MemoryOperand(&first_input); |
| 173 | } |
| 174 | }; |
| 175 | |
| 176 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 177 | namespace { |
| 178 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 179 | bool HasImmediateInput(Instruction* instr, size_t index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 180 | return instr->InputAt(index)->IsImmediate(); |
| 181 | } |
| 182 | |
| 183 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 184 | class OutOfLineLoadInteger final : public OutOfLineCode { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 185 | public: |
| 186 | OutOfLineLoadInteger(CodeGenerator* gen, Register result) |
| 187 | : OutOfLineCode(gen), result_(result) {} |
| 188 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 189 | void Generate() final { __ xor_(result_, result_); } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 190 | |
| 191 | private: |
| 192 | Register const result_; |
| 193 | }; |
| 194 | |
| 195 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 196 | class OutOfLineLoadFloat final : public OutOfLineCode { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 197 | public: |
| 198 | OutOfLineLoadFloat(CodeGenerator* gen, XMMRegister result) |
| 199 | : OutOfLineCode(gen), result_(result) {} |
| 200 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 201 | void Generate() final { __ pcmpeqd(result_, result_); } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 202 | |
| 203 | private: |
| 204 | XMMRegister const result_; |
| 205 | }; |
| 206 | |
| 207 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 208 | class OutOfLineTruncateDoubleToI final : public OutOfLineCode { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 209 | public: |
| 210 | OutOfLineTruncateDoubleToI(CodeGenerator* gen, Register result, |
| 211 | XMMRegister input) |
| 212 | : OutOfLineCode(gen), result_(result), input_(input) {} |
| 213 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 214 | void Generate() final { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 215 | __ sub(esp, Immediate(kDoubleSize)); |
| 216 | __ movsd(MemOperand(esp, 0), input_); |
| 217 | __ SlowTruncateToI(result_, esp, 0); |
| 218 | __ add(esp, Immediate(kDoubleSize)); |
| 219 | } |
| 220 | |
| 221 | private: |
| 222 | Register const result_; |
| 223 | XMMRegister const input_; |
| 224 | }; |
| 225 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 226 | |
| 227 | class OutOfLineRecordWrite final : public OutOfLineCode { |
| 228 | public: |
| 229 | OutOfLineRecordWrite(CodeGenerator* gen, Register object, Operand operand, |
| 230 | Register value, Register scratch0, Register scratch1, |
| 231 | RecordWriteMode mode) |
| 232 | : OutOfLineCode(gen), |
| 233 | object_(object), |
| 234 | operand_(operand), |
| 235 | value_(value), |
| 236 | scratch0_(scratch0), |
| 237 | scratch1_(scratch1), |
| 238 | mode_(mode) {} |
| 239 | |
| 240 | void Generate() final { |
| 241 | if (mode_ > RecordWriteMode::kValueIsPointer) { |
| 242 | __ JumpIfSmi(value_, exit()); |
| 243 | } |
| 244 | if (mode_ > RecordWriteMode::kValueIsMap) { |
| 245 | __ CheckPageFlag(value_, scratch0_, |
| 246 | MemoryChunk::kPointersToHereAreInterestingMask, zero, |
| 247 | exit()); |
| 248 | } |
| 249 | SaveFPRegsMode const save_fp_mode = |
| 250 | frame()->DidAllocateDoubleRegisters() ? kSaveFPRegs : kDontSaveFPRegs; |
| 251 | RecordWriteStub stub(isolate(), object_, scratch0_, scratch1_, |
| 252 | EMIT_REMEMBERED_SET, save_fp_mode); |
| 253 | __ lea(scratch1_, operand_); |
| 254 | __ CallStub(&stub); |
| 255 | } |
| 256 | |
| 257 | private: |
| 258 | Register const object_; |
| 259 | Operand const operand_; |
| 260 | Register const value_; |
| 261 | Register const scratch0_; |
| 262 | Register const scratch1_; |
| 263 | RecordWriteMode const mode_; |
| 264 | }; |
| 265 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 266 | } // namespace |
| 267 | |
| 268 | |
| 269 | #define ASSEMBLE_CHECKED_LOAD_FLOAT(asm_instr) \ |
| 270 | do { \ |
| 271 | auto result = i.OutputDoubleRegister(); \ |
| 272 | auto offset = i.InputRegister(0); \ |
| 273 | if (instr->InputAt(1)->IsRegister()) { \ |
| 274 | __ cmp(offset, i.InputRegister(1)); \ |
| 275 | } else { \ |
| 276 | __ cmp(offset, i.InputImmediate(1)); \ |
| 277 | } \ |
| 278 | OutOfLineCode* ool = new (zone()) OutOfLineLoadFloat(this, result); \ |
| 279 | __ j(above_equal, ool->entry()); \ |
| 280 | __ asm_instr(result, i.MemoryOperand(2)); \ |
| 281 | __ bind(ool->exit()); \ |
| 282 | } while (false) |
| 283 | |
| 284 | |
| 285 | #define ASSEMBLE_CHECKED_LOAD_INTEGER(asm_instr) \ |
| 286 | do { \ |
| 287 | auto result = i.OutputRegister(); \ |
| 288 | auto offset = i.InputRegister(0); \ |
| 289 | if (instr->InputAt(1)->IsRegister()) { \ |
| 290 | __ cmp(offset, i.InputRegister(1)); \ |
| 291 | } else { \ |
| 292 | __ cmp(offset, i.InputImmediate(1)); \ |
| 293 | } \ |
| 294 | OutOfLineCode* ool = new (zone()) OutOfLineLoadInteger(this, result); \ |
| 295 | __ j(above_equal, ool->entry()); \ |
| 296 | __ asm_instr(result, i.MemoryOperand(2)); \ |
| 297 | __ bind(ool->exit()); \ |
| 298 | } while (false) |
| 299 | |
| 300 | |
| 301 | #define ASSEMBLE_CHECKED_STORE_FLOAT(asm_instr) \ |
| 302 | do { \ |
| 303 | auto offset = i.InputRegister(0); \ |
| 304 | if (instr->InputAt(1)->IsRegister()) { \ |
| 305 | __ cmp(offset, i.InputRegister(1)); \ |
| 306 | } else { \ |
| 307 | __ cmp(offset, i.InputImmediate(1)); \ |
| 308 | } \ |
| 309 | Label done; \ |
| 310 | __ j(above_equal, &done, Label::kNear); \ |
| 311 | __ asm_instr(i.MemoryOperand(3), i.InputDoubleRegister(2)); \ |
| 312 | __ bind(&done); \ |
| 313 | } while (false) |
| 314 | |
| 315 | |
| 316 | #define ASSEMBLE_CHECKED_STORE_INTEGER(asm_instr) \ |
| 317 | do { \ |
| 318 | auto offset = i.InputRegister(0); \ |
| 319 | if (instr->InputAt(1)->IsRegister()) { \ |
| 320 | __ cmp(offset, i.InputRegister(1)); \ |
| 321 | } else { \ |
| 322 | __ cmp(offset, i.InputImmediate(1)); \ |
| 323 | } \ |
| 324 | Label done; \ |
| 325 | __ j(above_equal, &done, Label::kNear); \ |
| 326 | if (instr->InputAt(2)->IsRegister()) { \ |
| 327 | __ asm_instr(i.MemoryOperand(3), i.InputRegister(2)); \ |
| 328 | } else { \ |
| 329 | __ asm_instr(i.MemoryOperand(3), i.InputImmediate(2)); \ |
| 330 | } \ |
| 331 | __ bind(&done); \ |
| 332 | } while (false) |
| 333 | |
| 334 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 335 | void CodeGenerator::AssembleDeconstructActivationRecord(int stack_param_delta) { |
| 336 | int sp_slot_delta = TailCallFrameStackSlotDelta(stack_param_delta); |
| 337 | if (sp_slot_delta > 0) { |
| 338 | __ add(esp, Immediate(sp_slot_delta * kPointerSize)); |
| 339 | } |
| 340 | frame_access_state()->SetFrameAccessToDefault(); |
| 341 | } |
| 342 | |
| 343 | |
| 344 | void CodeGenerator::AssemblePrepareTailCall(int stack_param_delta) { |
| 345 | int sp_slot_delta = TailCallFrameStackSlotDelta(stack_param_delta); |
| 346 | if (sp_slot_delta < 0) { |
| 347 | __ sub(esp, Immediate(-sp_slot_delta * kPointerSize)); |
| 348 | frame_access_state()->IncreaseSPDelta(-sp_slot_delta); |
| 349 | } |
| 350 | if (frame()->needs_frame()) { |
| 351 | __ mov(ebp, MemOperand(ebp, 0)); |
| 352 | } |
| 353 | frame_access_state()->SetFrameAccessToSP(); |
| 354 | } |
| 355 | |
| 356 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 357 | // Assembles an instruction after register allocation, producing machine code. |
| 358 | void CodeGenerator::AssembleArchInstruction(Instruction* instr) { |
| 359 | IA32OperandConverter i(this, instr); |
| 360 | |
| 361 | switch (ArchOpcodeField::decode(instr->opcode())) { |
| 362 | case kArchCallCodeObject: { |
| 363 | EnsureSpaceForLazyDeopt(); |
| 364 | if (HasImmediateInput(instr, 0)) { |
| 365 | Handle<Code> code = Handle<Code>::cast(i.InputHeapObject(0)); |
| 366 | __ call(code, RelocInfo::CODE_TARGET); |
| 367 | } else { |
| 368 | Register reg = i.InputRegister(0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 369 | __ add(reg, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 370 | __ call(reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 371 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 372 | RecordCallPosition(instr); |
| 373 | frame_access_state()->ClearSPDelta(); |
| 374 | break; |
| 375 | } |
| 376 | case kArchTailCallCodeObject: { |
| 377 | int stack_param_delta = i.InputInt32(instr->InputCount() - 1); |
| 378 | AssembleDeconstructActivationRecord(stack_param_delta); |
| 379 | if (HasImmediateInput(instr, 0)) { |
| 380 | Handle<Code> code = Handle<Code>::cast(i.InputHeapObject(0)); |
| 381 | __ jmp(code, RelocInfo::CODE_TARGET); |
| 382 | } else { |
| 383 | Register reg = i.InputRegister(0); |
| 384 | __ add(reg, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 385 | __ jmp(reg); |
| 386 | } |
| 387 | frame_access_state()->ClearSPDelta(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 388 | break; |
| 389 | } |
| 390 | case kArchCallJSFunction: { |
| 391 | EnsureSpaceForLazyDeopt(); |
| 392 | Register func = i.InputRegister(0); |
| 393 | if (FLAG_debug_code) { |
| 394 | // Check the function's context matches the context argument. |
| 395 | __ cmp(esi, FieldOperand(func, JSFunction::kContextOffset)); |
| 396 | __ Assert(equal, kWrongFunctionContext); |
| 397 | } |
| 398 | __ call(FieldOperand(func, JSFunction::kCodeEntryOffset)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 399 | RecordCallPosition(instr); |
| 400 | frame_access_state()->ClearSPDelta(); |
| 401 | break; |
| 402 | } |
| 403 | case kArchTailCallJSFunction: { |
| 404 | Register func = i.InputRegister(0); |
| 405 | if (FLAG_debug_code) { |
| 406 | // Check the function's context matches the context argument. |
| 407 | __ cmp(esi, FieldOperand(func, JSFunction::kContextOffset)); |
| 408 | __ Assert(equal, kWrongFunctionContext); |
| 409 | } |
| 410 | int stack_param_delta = i.InputInt32(instr->InputCount() - 1); |
| 411 | AssembleDeconstructActivationRecord(stack_param_delta); |
| 412 | __ jmp(FieldOperand(func, JSFunction::kCodeEntryOffset)); |
| 413 | frame_access_state()->ClearSPDelta(); |
| 414 | break; |
| 415 | } |
| 416 | case kArchLazyBailout: { |
| 417 | EnsureSpaceForLazyDeopt(); |
| 418 | RecordCallPosition(instr); |
| 419 | break; |
| 420 | } |
| 421 | case kArchPrepareCallCFunction: { |
| 422 | // Frame alignment requires using FP-relative frame addressing. |
| 423 | frame_access_state()->SetFrameAccessToFP(); |
| 424 | int const num_parameters = MiscField::decode(instr->opcode()); |
| 425 | __ PrepareCallCFunction(num_parameters, i.TempRegister(0)); |
| 426 | break; |
| 427 | } |
| 428 | case kArchPrepareTailCall: |
| 429 | AssemblePrepareTailCall(i.InputInt32(instr->InputCount() - 1)); |
| 430 | break; |
| 431 | case kArchCallCFunction: { |
| 432 | int const num_parameters = MiscField::decode(instr->opcode()); |
| 433 | if (HasImmediateInput(instr, 0)) { |
| 434 | ExternalReference ref = i.InputExternalReference(0); |
| 435 | __ CallCFunction(ref, num_parameters); |
| 436 | } else { |
| 437 | Register func = i.InputRegister(0); |
| 438 | __ CallCFunction(func, num_parameters); |
| 439 | } |
| 440 | frame_access_state()->SetFrameAccessToDefault(); |
| 441 | frame_access_state()->ClearSPDelta(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 442 | break; |
| 443 | } |
| 444 | case kArchJmp: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 445 | AssembleArchJump(i.InputRpo(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 446 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 447 | case kArchLookupSwitch: |
| 448 | AssembleArchLookupSwitch(instr); |
| 449 | break; |
| 450 | case kArchTableSwitch: |
| 451 | AssembleArchTableSwitch(instr); |
| 452 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 453 | case kArchNop: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 454 | case kArchThrowTerminator: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 455 | // don't emit code for nops. |
| 456 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 457 | case kArchDeoptimize: { |
| 458 | int deopt_state_id = |
| 459 | BuildTranslation(instr, -1, 0, OutputFrameStateCombine::Ignore()); |
| 460 | Deoptimizer::BailoutType bailout_type = |
| 461 | Deoptimizer::BailoutType(MiscField::decode(instr->opcode())); |
| 462 | AssembleDeoptimizerCall(deopt_state_id, bailout_type); |
| 463 | break; |
| 464 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 465 | case kArchRet: |
| 466 | AssembleReturn(); |
| 467 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 468 | case kArchStackPointer: |
| 469 | __ mov(i.OutputRegister(), esp); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 470 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 471 | case kArchFramePointer: |
| 472 | __ mov(i.OutputRegister(), ebp); |
| 473 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 474 | case kArchTruncateDoubleToI: { |
| 475 | auto result = i.OutputRegister(); |
| 476 | auto input = i.InputDoubleRegister(0); |
| 477 | auto ool = new (zone()) OutOfLineTruncateDoubleToI(this, result, input); |
| 478 | __ cvttsd2si(result, Operand(input)); |
| 479 | __ cmp(result, 1); |
| 480 | __ j(overflow, ool->entry()); |
| 481 | __ bind(ool->exit()); |
| 482 | break; |
| 483 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 484 | case kArchStoreWithWriteBarrier: { |
| 485 | RecordWriteMode mode = |
| 486 | static_cast<RecordWriteMode>(MiscField::decode(instr->opcode())); |
| 487 | Register object = i.InputRegister(0); |
| 488 | size_t index = 0; |
| 489 | Operand operand = i.MemoryOperand(&index); |
| 490 | Register value = i.InputRegister(index); |
| 491 | Register scratch0 = i.TempRegister(0); |
| 492 | Register scratch1 = i.TempRegister(1); |
| 493 | auto ool = new (zone()) OutOfLineRecordWrite(this, object, operand, value, |
| 494 | scratch0, scratch1, mode); |
| 495 | __ mov(operand, value); |
| 496 | __ CheckPageFlag(object, scratch0, |
| 497 | MemoryChunk::kPointersFromHereAreInterestingMask, |
| 498 | not_zero, ool->entry()); |
| 499 | __ bind(ool->exit()); |
| 500 | break; |
| 501 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 502 | case kIA32Add: |
| 503 | if (HasImmediateInput(instr, 1)) { |
| 504 | __ add(i.InputOperand(0), i.InputImmediate(1)); |
| 505 | } else { |
| 506 | __ add(i.InputRegister(0), i.InputOperand(1)); |
| 507 | } |
| 508 | break; |
| 509 | case kIA32And: |
| 510 | if (HasImmediateInput(instr, 1)) { |
| 511 | __ and_(i.InputOperand(0), i.InputImmediate(1)); |
| 512 | } else { |
| 513 | __ and_(i.InputRegister(0), i.InputOperand(1)); |
| 514 | } |
| 515 | break; |
| 516 | case kIA32Cmp: |
| 517 | if (HasImmediateInput(instr, 1)) { |
| 518 | __ cmp(i.InputOperand(0), i.InputImmediate(1)); |
| 519 | } else { |
| 520 | __ cmp(i.InputRegister(0), i.InputOperand(1)); |
| 521 | } |
| 522 | break; |
| 523 | case kIA32Test: |
| 524 | if (HasImmediateInput(instr, 1)) { |
| 525 | __ test(i.InputOperand(0), i.InputImmediate(1)); |
| 526 | } else { |
| 527 | __ test(i.InputRegister(0), i.InputOperand(1)); |
| 528 | } |
| 529 | break; |
| 530 | case kIA32Imul: |
| 531 | if (HasImmediateInput(instr, 1)) { |
| 532 | __ imul(i.OutputRegister(), i.InputOperand(0), i.InputInt32(1)); |
| 533 | } else { |
| 534 | __ imul(i.OutputRegister(), i.InputOperand(1)); |
| 535 | } |
| 536 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 537 | case kIA32ImulHigh: |
| 538 | __ imul(i.InputRegister(1)); |
| 539 | break; |
| 540 | case kIA32UmulHigh: |
| 541 | __ mul(i.InputRegister(1)); |
| 542 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 543 | case kIA32Idiv: |
| 544 | __ cdq(); |
| 545 | __ idiv(i.InputOperand(1)); |
| 546 | break; |
| 547 | case kIA32Udiv: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 548 | __ Move(edx, Immediate(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 549 | __ div(i.InputOperand(1)); |
| 550 | break; |
| 551 | case kIA32Not: |
| 552 | __ not_(i.OutputOperand()); |
| 553 | break; |
| 554 | case kIA32Neg: |
| 555 | __ neg(i.OutputOperand()); |
| 556 | break; |
| 557 | case kIA32Or: |
| 558 | if (HasImmediateInput(instr, 1)) { |
| 559 | __ or_(i.InputOperand(0), i.InputImmediate(1)); |
| 560 | } else { |
| 561 | __ or_(i.InputRegister(0), i.InputOperand(1)); |
| 562 | } |
| 563 | break; |
| 564 | case kIA32Xor: |
| 565 | if (HasImmediateInput(instr, 1)) { |
| 566 | __ xor_(i.InputOperand(0), i.InputImmediate(1)); |
| 567 | } else { |
| 568 | __ xor_(i.InputRegister(0), i.InputOperand(1)); |
| 569 | } |
| 570 | break; |
| 571 | case kIA32Sub: |
| 572 | if (HasImmediateInput(instr, 1)) { |
| 573 | __ sub(i.InputOperand(0), i.InputImmediate(1)); |
| 574 | } else { |
| 575 | __ sub(i.InputRegister(0), i.InputOperand(1)); |
| 576 | } |
| 577 | break; |
| 578 | case kIA32Shl: |
| 579 | if (HasImmediateInput(instr, 1)) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 580 | __ shl(i.OutputOperand(), i.InputInt5(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 581 | } else { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 582 | __ shl_cl(i.OutputOperand()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 583 | } |
| 584 | break; |
| 585 | case kIA32Shr: |
| 586 | if (HasImmediateInput(instr, 1)) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 587 | __ shr(i.OutputOperand(), i.InputInt5(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 588 | } else { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 589 | __ shr_cl(i.OutputOperand()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 590 | } |
| 591 | break; |
| 592 | case kIA32Sar: |
| 593 | if (HasImmediateInput(instr, 1)) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 594 | __ sar(i.OutputOperand(), i.InputInt5(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 595 | } else { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 596 | __ sar_cl(i.OutputOperand()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 597 | } |
| 598 | break; |
| 599 | case kIA32Ror: |
| 600 | if (HasImmediateInput(instr, 1)) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 601 | __ ror(i.OutputOperand(), i.InputInt5(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 602 | } else { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 603 | __ ror_cl(i.OutputOperand()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 604 | } |
| 605 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 606 | case kIA32Lzcnt: |
| 607 | __ Lzcnt(i.OutputRegister(), i.InputOperand(0)); |
| 608 | break; |
| 609 | case kIA32Tzcnt: |
| 610 | __ Tzcnt(i.OutputRegister(), i.InputOperand(0)); |
| 611 | break; |
| 612 | case kIA32Popcnt: |
| 613 | __ Popcnt(i.OutputRegister(), i.InputOperand(0)); |
| 614 | break; |
| 615 | case kSSEFloat32Cmp: |
| 616 | __ ucomiss(i.InputDoubleRegister(0), i.InputOperand(1)); |
| 617 | break; |
| 618 | case kSSEFloat32Add: |
| 619 | __ addss(i.InputDoubleRegister(0), i.InputOperand(1)); |
| 620 | break; |
| 621 | case kSSEFloat32Sub: |
| 622 | __ subss(i.InputDoubleRegister(0), i.InputOperand(1)); |
| 623 | break; |
| 624 | case kSSEFloat32Mul: |
| 625 | __ mulss(i.InputDoubleRegister(0), i.InputOperand(1)); |
| 626 | break; |
| 627 | case kSSEFloat32Div: |
| 628 | __ divss(i.InputDoubleRegister(0), i.InputOperand(1)); |
| 629 | // Don't delete this mov. It may improve performance on some CPUs, |
| 630 | // when there is a (v)mulss depending on the result. |
| 631 | __ movaps(i.OutputDoubleRegister(), i.OutputDoubleRegister()); |
| 632 | break; |
| 633 | case kSSEFloat32Max: |
| 634 | __ maxss(i.InputDoubleRegister(0), i.InputOperand(1)); |
| 635 | break; |
| 636 | case kSSEFloat32Min: |
| 637 | __ minss(i.InputDoubleRegister(0), i.InputOperand(1)); |
| 638 | break; |
| 639 | case kSSEFloat32Sqrt: |
| 640 | __ sqrtss(i.OutputDoubleRegister(), i.InputOperand(0)); |
| 641 | break; |
| 642 | case kSSEFloat32Abs: { |
| 643 | // TODO(bmeurer): Use 128-bit constants. |
| 644 | __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg); |
| 645 | __ psrlq(kScratchDoubleReg, 33); |
| 646 | __ andps(i.OutputDoubleRegister(), kScratchDoubleReg); |
| 647 | break; |
| 648 | } |
| 649 | case kSSEFloat32Neg: { |
| 650 | // TODO(bmeurer): Use 128-bit constants. |
| 651 | __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg); |
| 652 | __ psllq(kScratchDoubleReg, 31); |
| 653 | __ xorps(i.OutputDoubleRegister(), kScratchDoubleReg); |
| 654 | break; |
| 655 | } |
| 656 | case kSSEFloat32Round: { |
| 657 | CpuFeatureScope sse_scope(masm(), SSE4_1); |
| 658 | RoundingMode const mode = |
| 659 | static_cast<RoundingMode>(MiscField::decode(instr->opcode())); |
| 660 | __ roundss(i.OutputDoubleRegister(), i.InputDoubleRegister(0), mode); |
| 661 | break; |
| 662 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 663 | case kSSEFloat64Cmp: |
| 664 | __ ucomisd(i.InputDoubleRegister(0), i.InputOperand(1)); |
| 665 | break; |
| 666 | case kSSEFloat64Add: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 667 | __ addsd(i.InputDoubleRegister(0), i.InputOperand(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 668 | break; |
| 669 | case kSSEFloat64Sub: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 670 | __ subsd(i.InputDoubleRegister(0), i.InputOperand(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 671 | break; |
| 672 | case kSSEFloat64Mul: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 673 | __ mulsd(i.InputDoubleRegister(0), i.InputOperand(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 674 | break; |
| 675 | case kSSEFloat64Div: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 676 | __ divsd(i.InputDoubleRegister(0), i.InputOperand(1)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 677 | // Don't delete this mov. It may improve performance on some CPUs, |
| 678 | // when there is a (v)mulsd depending on the result. |
| 679 | __ movaps(i.OutputDoubleRegister(), i.OutputDoubleRegister()); |
| 680 | break; |
| 681 | case kSSEFloat64Max: |
| 682 | __ maxsd(i.InputDoubleRegister(0), i.InputOperand(1)); |
| 683 | break; |
| 684 | case kSSEFloat64Min: |
| 685 | __ minsd(i.InputDoubleRegister(0), i.InputOperand(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 686 | break; |
| 687 | case kSSEFloat64Mod: { |
| 688 | // TODO(dcarney): alignment is wrong. |
| 689 | __ sub(esp, Immediate(kDoubleSize)); |
| 690 | // Move values to st(0) and st(1). |
| 691 | __ movsd(Operand(esp, 0), i.InputDoubleRegister(1)); |
| 692 | __ fld_d(Operand(esp, 0)); |
| 693 | __ movsd(Operand(esp, 0), i.InputDoubleRegister(0)); |
| 694 | __ fld_d(Operand(esp, 0)); |
| 695 | // Loop while fprem isn't done. |
| 696 | Label mod_loop; |
| 697 | __ bind(&mod_loop); |
| 698 | // This instructions traps on all kinds inputs, but we are assuming the |
| 699 | // floating point control word is set to ignore them all. |
| 700 | __ fprem(); |
| 701 | // The following 2 instruction implicitly use eax. |
| 702 | __ fnstsw_ax(); |
| 703 | __ sahf(); |
| 704 | __ j(parity_even, &mod_loop); |
| 705 | // Move output to stack and clean up. |
| 706 | __ fstp(1); |
| 707 | __ fstp_d(Operand(esp, 0)); |
| 708 | __ movsd(i.OutputDoubleRegister(), Operand(esp, 0)); |
| 709 | __ add(esp, Immediate(kDoubleSize)); |
| 710 | break; |
| 711 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 712 | case kSSEFloat64Abs: { |
| 713 | // TODO(bmeurer): Use 128-bit constants. |
| 714 | __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg); |
| 715 | __ psrlq(kScratchDoubleReg, 1); |
| 716 | __ andpd(i.OutputDoubleRegister(), kScratchDoubleReg); |
| 717 | break; |
| 718 | } |
| 719 | case kSSEFloat64Neg: { |
| 720 | // TODO(bmeurer): Use 128-bit constants. |
| 721 | __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg); |
| 722 | __ psllq(kScratchDoubleReg, 63); |
| 723 | __ xorpd(i.OutputDoubleRegister(), kScratchDoubleReg); |
| 724 | break; |
| 725 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 726 | case kSSEFloat64Sqrt: |
| 727 | __ sqrtsd(i.OutputDoubleRegister(), i.InputOperand(0)); |
| 728 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 729 | case kSSEFloat64Round: { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 730 | CpuFeatureScope sse_scope(masm(), SSE4_1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 731 | RoundingMode const mode = |
| 732 | static_cast<RoundingMode>(MiscField::decode(instr->opcode())); |
| 733 | __ roundsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0), mode); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 734 | break; |
| 735 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 736 | case kSSEFloat32ToFloat64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 737 | __ cvtss2sd(i.OutputDoubleRegister(), i.InputOperand(0)); |
| 738 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 739 | case kSSEFloat64ToFloat32: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 740 | __ cvtsd2ss(i.OutputDoubleRegister(), i.InputOperand(0)); |
| 741 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 742 | case kSSEFloat64ToInt32: |
| 743 | __ cvttsd2si(i.OutputRegister(), i.InputOperand(0)); |
| 744 | break; |
| 745 | case kSSEFloat64ToUint32: { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 746 | __ Move(kScratchDoubleReg, -2147483648.0); |
| 747 | __ addsd(kScratchDoubleReg, i.InputOperand(0)); |
| 748 | __ cvttsd2si(i.OutputRegister(), kScratchDoubleReg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 749 | __ add(i.OutputRegister(), Immediate(0x80000000)); |
| 750 | break; |
| 751 | } |
| 752 | case kSSEInt32ToFloat64: |
| 753 | __ cvtsi2sd(i.OutputDoubleRegister(), i.InputOperand(0)); |
| 754 | break; |
| 755 | case kSSEUint32ToFloat64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 756 | __ LoadUint32(i.OutputDoubleRegister(), i.InputOperand(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 757 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 758 | case kSSEFloat64ExtractLowWord32: |
| 759 | if (instr->InputAt(0)->IsDoubleStackSlot()) { |
| 760 | __ mov(i.OutputRegister(), i.InputOperand(0)); |
| 761 | } else { |
| 762 | __ movd(i.OutputRegister(), i.InputDoubleRegister(0)); |
| 763 | } |
| 764 | break; |
| 765 | case kSSEFloat64ExtractHighWord32: |
| 766 | if (instr->InputAt(0)->IsDoubleStackSlot()) { |
| 767 | __ mov(i.OutputRegister(), i.InputOperand(0, kDoubleSize / 2)); |
| 768 | } else { |
| 769 | __ Pextrd(i.OutputRegister(), i.InputDoubleRegister(0), 1); |
| 770 | } |
| 771 | break; |
| 772 | case kSSEFloat64InsertLowWord32: |
| 773 | __ Pinsrd(i.OutputDoubleRegister(), i.InputOperand(1), 0); |
| 774 | break; |
| 775 | case kSSEFloat64InsertHighWord32: |
| 776 | __ Pinsrd(i.OutputDoubleRegister(), i.InputOperand(1), 1); |
| 777 | break; |
| 778 | case kSSEFloat64LoadLowWord32: |
| 779 | __ movd(i.OutputDoubleRegister(), i.InputOperand(0)); |
| 780 | break; |
| 781 | case kAVXFloat32Add: { |
| 782 | CpuFeatureScope avx_scope(masm(), AVX); |
| 783 | __ vaddss(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 784 | i.InputOperand(1)); |
| 785 | break; |
| 786 | } |
| 787 | case kAVXFloat32Sub: { |
| 788 | CpuFeatureScope avx_scope(masm(), AVX); |
| 789 | __ vsubss(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 790 | i.InputOperand(1)); |
| 791 | break; |
| 792 | } |
| 793 | case kAVXFloat32Mul: { |
| 794 | CpuFeatureScope avx_scope(masm(), AVX); |
| 795 | __ vmulss(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 796 | i.InputOperand(1)); |
| 797 | break; |
| 798 | } |
| 799 | case kAVXFloat32Div: { |
| 800 | CpuFeatureScope avx_scope(masm(), AVX); |
| 801 | __ vdivss(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 802 | i.InputOperand(1)); |
| 803 | // Don't delete this mov. It may improve performance on some CPUs, |
| 804 | // when there is a (v)mulss depending on the result. |
| 805 | __ movaps(i.OutputDoubleRegister(), i.OutputDoubleRegister()); |
| 806 | break; |
| 807 | } |
| 808 | case kAVXFloat32Max: { |
| 809 | CpuFeatureScope avx_scope(masm(), AVX); |
| 810 | __ vmaxss(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 811 | i.InputOperand(1)); |
| 812 | break; |
| 813 | } |
| 814 | case kAVXFloat32Min: { |
| 815 | CpuFeatureScope avx_scope(masm(), AVX); |
| 816 | __ vminss(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 817 | i.InputOperand(1)); |
| 818 | break; |
| 819 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 820 | case kAVXFloat64Add: { |
| 821 | CpuFeatureScope avx_scope(masm(), AVX); |
| 822 | __ vaddsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 823 | i.InputOperand(1)); |
| 824 | break; |
| 825 | } |
| 826 | case kAVXFloat64Sub: { |
| 827 | CpuFeatureScope avx_scope(masm(), AVX); |
| 828 | __ vsubsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 829 | i.InputOperand(1)); |
| 830 | break; |
| 831 | } |
| 832 | case kAVXFloat64Mul: { |
| 833 | CpuFeatureScope avx_scope(masm(), AVX); |
| 834 | __ vmulsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 835 | i.InputOperand(1)); |
| 836 | break; |
| 837 | } |
| 838 | case kAVXFloat64Div: { |
| 839 | CpuFeatureScope avx_scope(masm(), AVX); |
| 840 | __ vdivsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 841 | i.InputOperand(1)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 842 | // Don't delete this mov. It may improve performance on some CPUs, |
| 843 | // when there is a (v)mulsd depending on the result. |
| 844 | __ movaps(i.OutputDoubleRegister(), i.OutputDoubleRegister()); |
| 845 | break; |
| 846 | } |
| 847 | case kAVXFloat64Max: { |
| 848 | CpuFeatureScope avx_scope(masm(), AVX); |
| 849 | __ vmaxsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 850 | i.InputOperand(1)); |
| 851 | break; |
| 852 | } |
| 853 | case kAVXFloat64Min: { |
| 854 | CpuFeatureScope avx_scope(masm(), AVX); |
| 855 | __ vminsd(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 856 | i.InputOperand(1)); |
| 857 | break; |
| 858 | } |
| 859 | case kAVXFloat32Abs: { |
| 860 | // TODO(bmeurer): Use RIP relative 128-bit constants. |
| 861 | __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg); |
| 862 | __ psrlq(kScratchDoubleReg, 33); |
| 863 | CpuFeatureScope avx_scope(masm(), AVX); |
| 864 | __ vandps(i.OutputDoubleRegister(), kScratchDoubleReg, i.InputOperand(0)); |
| 865 | break; |
| 866 | } |
| 867 | case kAVXFloat32Neg: { |
| 868 | // TODO(bmeurer): Use RIP relative 128-bit constants. |
| 869 | __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg); |
| 870 | __ psllq(kScratchDoubleReg, 31); |
| 871 | CpuFeatureScope avx_scope(masm(), AVX); |
| 872 | __ vxorps(i.OutputDoubleRegister(), kScratchDoubleReg, i.InputOperand(0)); |
| 873 | break; |
| 874 | } |
| 875 | case kAVXFloat64Abs: { |
| 876 | // TODO(bmeurer): Use RIP relative 128-bit constants. |
| 877 | __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg); |
| 878 | __ psrlq(kScratchDoubleReg, 1); |
| 879 | CpuFeatureScope avx_scope(masm(), AVX); |
| 880 | __ vandpd(i.OutputDoubleRegister(), kScratchDoubleReg, i.InputOperand(0)); |
| 881 | break; |
| 882 | } |
| 883 | case kAVXFloat64Neg: { |
| 884 | // TODO(bmeurer): Use RIP relative 128-bit constants. |
| 885 | __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg); |
| 886 | __ psllq(kScratchDoubleReg, 63); |
| 887 | CpuFeatureScope avx_scope(masm(), AVX); |
| 888 | __ vxorpd(i.OutputDoubleRegister(), kScratchDoubleReg, i.InputOperand(0)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 889 | break; |
| 890 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 891 | case kIA32Movsxbl: |
| 892 | __ movsx_b(i.OutputRegister(), i.MemoryOperand()); |
| 893 | break; |
| 894 | case kIA32Movzxbl: |
| 895 | __ movzx_b(i.OutputRegister(), i.MemoryOperand()); |
| 896 | break; |
| 897 | case kIA32Movb: { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 898 | size_t index = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 899 | Operand operand = i.MemoryOperand(&index); |
| 900 | if (HasImmediateInput(instr, index)) { |
| 901 | __ mov_b(operand, i.InputInt8(index)); |
| 902 | } else { |
| 903 | __ mov_b(operand, i.InputRegister(index)); |
| 904 | } |
| 905 | break; |
| 906 | } |
| 907 | case kIA32Movsxwl: |
| 908 | __ movsx_w(i.OutputRegister(), i.MemoryOperand()); |
| 909 | break; |
| 910 | case kIA32Movzxwl: |
| 911 | __ movzx_w(i.OutputRegister(), i.MemoryOperand()); |
| 912 | break; |
| 913 | case kIA32Movw: { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 914 | size_t index = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 915 | Operand operand = i.MemoryOperand(&index); |
| 916 | if (HasImmediateInput(instr, index)) { |
| 917 | __ mov_w(operand, i.InputInt16(index)); |
| 918 | } else { |
| 919 | __ mov_w(operand, i.InputRegister(index)); |
| 920 | } |
| 921 | break; |
| 922 | } |
| 923 | case kIA32Movl: |
| 924 | if (instr->HasOutput()) { |
| 925 | __ mov(i.OutputRegister(), i.MemoryOperand()); |
| 926 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 927 | size_t index = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 928 | Operand operand = i.MemoryOperand(&index); |
| 929 | if (HasImmediateInput(instr, index)) { |
| 930 | __ mov(operand, i.InputImmediate(index)); |
| 931 | } else { |
| 932 | __ mov(operand, i.InputRegister(index)); |
| 933 | } |
| 934 | } |
| 935 | break; |
| 936 | case kIA32Movsd: |
| 937 | if (instr->HasOutput()) { |
| 938 | __ movsd(i.OutputDoubleRegister(), i.MemoryOperand()); |
| 939 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 940 | size_t index = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 941 | Operand operand = i.MemoryOperand(&index); |
| 942 | __ movsd(operand, i.InputDoubleRegister(index)); |
| 943 | } |
| 944 | break; |
| 945 | case kIA32Movss: |
| 946 | if (instr->HasOutput()) { |
| 947 | __ movss(i.OutputDoubleRegister(), i.MemoryOperand()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 948 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 949 | size_t index = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 950 | Operand operand = i.MemoryOperand(&index); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 951 | __ movss(operand, i.InputDoubleRegister(index)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 952 | } |
| 953 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 954 | case kIA32BitcastFI: |
| 955 | if (instr->InputAt(0)->IsDoubleStackSlot()) { |
| 956 | __ mov(i.OutputRegister(), i.InputOperand(0)); |
| 957 | } else { |
| 958 | __ movd(i.OutputRegister(), i.InputDoubleRegister(0)); |
| 959 | } |
| 960 | break; |
| 961 | case kIA32BitcastIF: |
| 962 | if (instr->InputAt(0)->IsRegister()) { |
| 963 | __ movd(i.OutputDoubleRegister(), i.InputRegister(0)); |
| 964 | } else { |
| 965 | __ movss(i.OutputDoubleRegister(), i.InputOperand(0)); |
| 966 | } |
| 967 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 968 | case kIA32Lea: { |
| 969 | AddressingMode mode = AddressingModeField::decode(instr->opcode()); |
| 970 | // Shorten "leal" to "addl", "subl" or "shll" if the register allocation |
| 971 | // and addressing mode just happens to work out. The "addl"/"subl" forms |
| 972 | // in these cases are faster based on measurements. |
| 973 | if (mode == kMode_MI) { |
| 974 | __ Move(i.OutputRegister(), Immediate(i.InputInt32(0))); |
| 975 | } else if (i.InputRegister(0).is(i.OutputRegister())) { |
| 976 | if (mode == kMode_MRI) { |
| 977 | int32_t constant_summand = i.InputInt32(1); |
| 978 | if (constant_summand > 0) { |
| 979 | __ add(i.OutputRegister(), Immediate(constant_summand)); |
| 980 | } else if (constant_summand < 0) { |
| 981 | __ sub(i.OutputRegister(), Immediate(-constant_summand)); |
| 982 | } |
| 983 | } else if (mode == kMode_MR1) { |
| 984 | if (i.InputRegister(1).is(i.OutputRegister())) { |
| 985 | __ shl(i.OutputRegister(), 1); |
| 986 | } else { |
| 987 | __ lea(i.OutputRegister(), i.MemoryOperand()); |
| 988 | } |
| 989 | } else if (mode == kMode_M2) { |
| 990 | __ shl(i.OutputRegister(), 1); |
| 991 | } else if (mode == kMode_M4) { |
| 992 | __ shl(i.OutputRegister(), 2); |
| 993 | } else if (mode == kMode_M8) { |
| 994 | __ shl(i.OutputRegister(), 3); |
| 995 | } else { |
| 996 | __ lea(i.OutputRegister(), i.MemoryOperand()); |
| 997 | } |
| 998 | } else { |
| 999 | __ lea(i.OutputRegister(), i.MemoryOperand()); |
| 1000 | } |
| 1001 | break; |
| 1002 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1003 | case kIA32PushFloat32: |
| 1004 | if (instr->InputAt(0)->IsDoubleRegister()) { |
| 1005 | __ sub(esp, Immediate(kDoubleSize)); |
| 1006 | __ movss(Operand(esp, 0), i.InputDoubleRegister(0)); |
| 1007 | frame_access_state()->IncreaseSPDelta(kDoubleSize / kPointerSize); |
| 1008 | } else if (HasImmediateInput(instr, 0)) { |
| 1009 | __ Move(kScratchDoubleReg, i.InputDouble(0)); |
| 1010 | __ sub(esp, Immediate(kDoubleSize)); |
| 1011 | __ movss(Operand(esp, 0), kScratchDoubleReg); |
| 1012 | frame_access_state()->IncreaseSPDelta(kDoubleSize / kPointerSize); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1013 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1014 | __ movsd(kScratchDoubleReg, i.InputOperand(0)); |
| 1015 | __ sub(esp, Immediate(kDoubleSize)); |
| 1016 | __ movss(Operand(esp, 0), kScratchDoubleReg); |
| 1017 | frame_access_state()->IncreaseSPDelta(kDoubleSize / kPointerSize); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1018 | } |
| 1019 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1020 | case kIA32PushFloat64: |
| 1021 | if (instr->InputAt(0)->IsDoubleRegister()) { |
| 1022 | __ sub(esp, Immediate(kDoubleSize)); |
| 1023 | __ movsd(Operand(esp, 0), i.InputDoubleRegister(0)); |
| 1024 | frame_access_state()->IncreaseSPDelta(kDoubleSize / kPointerSize); |
| 1025 | } else if (HasImmediateInput(instr, 0)) { |
| 1026 | __ Move(kScratchDoubleReg, i.InputDouble(0)); |
| 1027 | __ sub(esp, Immediate(kDoubleSize)); |
| 1028 | __ movsd(Operand(esp, 0), kScratchDoubleReg); |
| 1029 | frame_access_state()->IncreaseSPDelta(kDoubleSize / kPointerSize); |
| 1030 | } else { |
| 1031 | __ movsd(kScratchDoubleReg, i.InputOperand(0)); |
| 1032 | __ sub(esp, Immediate(kDoubleSize)); |
| 1033 | __ movsd(Operand(esp, 0), kScratchDoubleReg); |
| 1034 | frame_access_state()->IncreaseSPDelta(kDoubleSize / kPointerSize); |
| 1035 | } |
| 1036 | break; |
| 1037 | case kIA32Push: |
| 1038 | if (instr->InputAt(0)->IsDoubleRegister()) { |
| 1039 | __ sub(esp, Immediate(kDoubleSize)); |
| 1040 | __ movsd(Operand(esp, 0), i.InputDoubleRegister(0)); |
| 1041 | frame_access_state()->IncreaseSPDelta(kDoubleSize / kPointerSize); |
| 1042 | } else if (HasImmediateInput(instr, 0)) { |
| 1043 | __ push(i.InputImmediate(0)); |
| 1044 | frame_access_state()->IncreaseSPDelta(1); |
| 1045 | } else { |
| 1046 | __ push(i.InputOperand(0)); |
| 1047 | frame_access_state()->IncreaseSPDelta(1); |
| 1048 | } |
| 1049 | break; |
| 1050 | case kIA32Poke: { |
| 1051 | int const slot = MiscField::decode(instr->opcode()); |
| 1052 | if (HasImmediateInput(instr, 0)) { |
| 1053 | __ mov(Operand(esp, slot * kPointerSize), i.InputImmediate(0)); |
| 1054 | } else { |
| 1055 | __ mov(Operand(esp, slot * kPointerSize), i.InputRegister(0)); |
| 1056 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1057 | break; |
| 1058 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1059 | case kCheckedLoadInt8: |
| 1060 | ASSEMBLE_CHECKED_LOAD_INTEGER(movsx_b); |
| 1061 | break; |
| 1062 | case kCheckedLoadUint8: |
| 1063 | ASSEMBLE_CHECKED_LOAD_INTEGER(movzx_b); |
| 1064 | break; |
| 1065 | case kCheckedLoadInt16: |
| 1066 | ASSEMBLE_CHECKED_LOAD_INTEGER(movsx_w); |
| 1067 | break; |
| 1068 | case kCheckedLoadUint16: |
| 1069 | ASSEMBLE_CHECKED_LOAD_INTEGER(movzx_w); |
| 1070 | break; |
| 1071 | case kCheckedLoadWord32: |
| 1072 | ASSEMBLE_CHECKED_LOAD_INTEGER(mov); |
| 1073 | break; |
| 1074 | case kCheckedLoadFloat32: |
| 1075 | ASSEMBLE_CHECKED_LOAD_FLOAT(movss); |
| 1076 | break; |
| 1077 | case kCheckedLoadFloat64: |
| 1078 | ASSEMBLE_CHECKED_LOAD_FLOAT(movsd); |
| 1079 | break; |
| 1080 | case kCheckedStoreWord8: |
| 1081 | ASSEMBLE_CHECKED_STORE_INTEGER(mov_b); |
| 1082 | break; |
| 1083 | case kCheckedStoreWord16: |
| 1084 | ASSEMBLE_CHECKED_STORE_INTEGER(mov_w); |
| 1085 | break; |
| 1086 | case kCheckedStoreWord32: |
| 1087 | ASSEMBLE_CHECKED_STORE_INTEGER(mov); |
| 1088 | break; |
| 1089 | case kCheckedStoreFloat32: |
| 1090 | ASSEMBLE_CHECKED_STORE_FLOAT(movss); |
| 1091 | break; |
| 1092 | case kCheckedStoreFloat64: |
| 1093 | ASSEMBLE_CHECKED_STORE_FLOAT(movsd); |
| 1094 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1095 | case kIA32StackCheck: { |
| 1096 | ExternalReference const stack_limit = |
| 1097 | ExternalReference::address_of_stack_limit(isolate()); |
| 1098 | __ cmp(esp, Operand::StaticVariable(stack_limit)); |
| 1099 | break; |
| 1100 | } |
| 1101 | case kCheckedLoadWord64: |
| 1102 | case kCheckedStoreWord64: |
| 1103 | UNREACHABLE(); // currently unsupported checked int64 load/store. |
| 1104 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1105 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1106 | } // NOLINT(readability/fn_size) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1107 | |
| 1108 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1109 | // Assembles a branch after an instruction. |
| 1110 | void CodeGenerator::AssembleArchBranch(Instruction* instr, BranchInfo* branch) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1111 | IA32OperandConverter i(this, instr); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1112 | Label::Distance flabel_distance = |
| 1113 | branch->fallthru ? Label::kNear : Label::kFar; |
| 1114 | Label* tlabel = branch->true_label; |
| 1115 | Label* flabel = branch->false_label; |
| 1116 | switch (branch->condition) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1117 | case kUnorderedEqual: |
| 1118 | __ j(parity_even, flabel, flabel_distance); |
| 1119 | // Fall through. |
| 1120 | case kEqual: |
| 1121 | __ j(equal, tlabel); |
| 1122 | break; |
| 1123 | case kUnorderedNotEqual: |
| 1124 | __ j(parity_even, tlabel); |
| 1125 | // Fall through. |
| 1126 | case kNotEqual: |
| 1127 | __ j(not_equal, tlabel); |
| 1128 | break; |
| 1129 | case kSignedLessThan: |
| 1130 | __ j(less, tlabel); |
| 1131 | break; |
| 1132 | case kSignedGreaterThanOrEqual: |
| 1133 | __ j(greater_equal, tlabel); |
| 1134 | break; |
| 1135 | case kSignedLessThanOrEqual: |
| 1136 | __ j(less_equal, tlabel); |
| 1137 | break; |
| 1138 | case kSignedGreaterThan: |
| 1139 | __ j(greater, tlabel); |
| 1140 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1141 | case kUnsignedLessThan: |
| 1142 | __ j(below, tlabel); |
| 1143 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1144 | case kUnsignedGreaterThanOrEqual: |
| 1145 | __ j(above_equal, tlabel); |
| 1146 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1147 | case kUnsignedLessThanOrEqual: |
| 1148 | __ j(below_equal, tlabel); |
| 1149 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1150 | case kUnsignedGreaterThan: |
| 1151 | __ j(above, tlabel); |
| 1152 | break; |
| 1153 | case kOverflow: |
| 1154 | __ j(overflow, tlabel); |
| 1155 | break; |
| 1156 | case kNotOverflow: |
| 1157 | __ j(no_overflow, tlabel); |
| 1158 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1159 | default: |
| 1160 | UNREACHABLE(); |
| 1161 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1162 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1163 | // Add a jump if not falling through to the next block. |
| 1164 | if (!branch->fallthru) __ jmp(flabel); |
| 1165 | } |
| 1166 | |
| 1167 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1168 | void CodeGenerator::AssembleArchJump(RpoNumber target) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1169 | if (!IsNextInAssemblyOrder(target)) __ jmp(GetLabel(target)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1170 | } |
| 1171 | |
| 1172 | |
| 1173 | // Assembles boolean materializations after an instruction. |
| 1174 | void CodeGenerator::AssembleArchBoolean(Instruction* instr, |
| 1175 | FlagsCondition condition) { |
| 1176 | IA32OperandConverter i(this, instr); |
| 1177 | Label done; |
| 1178 | |
| 1179 | // Materialize a full 32-bit 1 or 0 value. The result register is always the |
| 1180 | // last output of the instruction. |
| 1181 | Label check; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1182 | DCHECK_NE(0u, instr->OutputCount()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1183 | Register reg = i.OutputRegister(instr->OutputCount() - 1); |
| 1184 | Condition cc = no_condition; |
| 1185 | switch (condition) { |
| 1186 | case kUnorderedEqual: |
| 1187 | __ j(parity_odd, &check, Label::kNear); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1188 | __ Move(reg, Immediate(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1189 | __ jmp(&done, Label::kNear); |
| 1190 | // Fall through. |
| 1191 | case kEqual: |
| 1192 | cc = equal; |
| 1193 | break; |
| 1194 | case kUnorderedNotEqual: |
| 1195 | __ j(parity_odd, &check, Label::kNear); |
| 1196 | __ mov(reg, Immediate(1)); |
| 1197 | __ jmp(&done, Label::kNear); |
| 1198 | // Fall through. |
| 1199 | case kNotEqual: |
| 1200 | cc = not_equal; |
| 1201 | break; |
| 1202 | case kSignedLessThan: |
| 1203 | cc = less; |
| 1204 | break; |
| 1205 | case kSignedGreaterThanOrEqual: |
| 1206 | cc = greater_equal; |
| 1207 | break; |
| 1208 | case kSignedLessThanOrEqual: |
| 1209 | cc = less_equal; |
| 1210 | break; |
| 1211 | case kSignedGreaterThan: |
| 1212 | cc = greater; |
| 1213 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1214 | case kUnsignedLessThan: |
| 1215 | cc = below; |
| 1216 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1217 | case kUnsignedGreaterThanOrEqual: |
| 1218 | cc = above_equal; |
| 1219 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1220 | case kUnsignedLessThanOrEqual: |
| 1221 | cc = below_equal; |
| 1222 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1223 | case kUnsignedGreaterThan: |
| 1224 | cc = above; |
| 1225 | break; |
| 1226 | case kOverflow: |
| 1227 | cc = overflow; |
| 1228 | break; |
| 1229 | case kNotOverflow: |
| 1230 | cc = no_overflow; |
| 1231 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1232 | default: |
| 1233 | UNREACHABLE(); |
| 1234 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1235 | } |
| 1236 | __ bind(&check); |
| 1237 | if (reg.is_byte_register()) { |
| 1238 | // setcc for byte registers (al, bl, cl, dl). |
| 1239 | __ setcc(cc, reg); |
| 1240 | __ movzx_b(reg, reg); |
| 1241 | } else { |
| 1242 | // Emit a branch to set a register to either 1 or 0. |
| 1243 | Label set; |
| 1244 | __ j(cc, &set, Label::kNear); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1245 | __ Move(reg, Immediate(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1246 | __ jmp(&done, Label::kNear); |
| 1247 | __ bind(&set); |
| 1248 | __ mov(reg, Immediate(1)); |
| 1249 | } |
| 1250 | __ bind(&done); |
| 1251 | } |
| 1252 | |
| 1253 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1254 | void CodeGenerator::AssembleArchLookupSwitch(Instruction* instr) { |
| 1255 | IA32OperandConverter i(this, instr); |
| 1256 | Register input = i.InputRegister(0); |
| 1257 | for (size_t index = 2; index < instr->InputCount(); index += 2) { |
| 1258 | __ cmp(input, Immediate(i.InputInt32(index + 0))); |
| 1259 | __ j(equal, GetLabel(i.InputRpo(index + 1))); |
| 1260 | } |
| 1261 | AssembleArchJump(i.InputRpo(1)); |
| 1262 | } |
| 1263 | |
| 1264 | |
| 1265 | void CodeGenerator::AssembleArchTableSwitch(Instruction* instr) { |
| 1266 | IA32OperandConverter i(this, instr); |
| 1267 | Register input = i.InputRegister(0); |
| 1268 | size_t const case_count = instr->InputCount() - 2; |
| 1269 | Label** cases = zone()->NewArray<Label*>(case_count); |
| 1270 | for (size_t index = 0; index < case_count; ++index) { |
| 1271 | cases[index] = GetLabel(i.InputRpo(index + 2)); |
| 1272 | } |
| 1273 | Label* const table = AddJumpTable(cases, case_count); |
| 1274 | __ cmp(input, Immediate(case_count)); |
| 1275 | __ j(above_equal, GetLabel(i.InputRpo(1))); |
| 1276 | __ jmp(Operand::JumpTable(input, times_4, table)); |
| 1277 | } |
| 1278 | |
| 1279 | |
| 1280 | void CodeGenerator::AssembleDeoptimizerCall( |
| 1281 | int deoptimization_id, Deoptimizer::BailoutType bailout_type) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1282 | Address deopt_entry = Deoptimizer::GetDeoptimizationEntry( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1283 | isolate(), deoptimization_id, bailout_type); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1284 | __ call(deopt_entry, RelocInfo::RUNTIME_ENTRY); |
| 1285 | } |
| 1286 | |
| 1287 | |
| 1288 | // The calling convention for JSFunctions on IA32 passes arguments on the |
| 1289 | // stack and the JSFunction and context in EDI and ESI, respectively, thus |
| 1290 | // the steps of the call look as follows: |
| 1291 | |
| 1292 | // --{ before the call instruction }-------------------------------------------- |
| 1293 | // | caller frame | |
| 1294 | // ^ esp ^ ebp |
| 1295 | |
| 1296 | // --{ push arguments and setup ESI, EDI }-------------------------------------- |
| 1297 | // | args + receiver | caller frame | |
| 1298 | // ^ esp ^ ebp |
| 1299 | // [edi = JSFunction, esi = context] |
| 1300 | |
| 1301 | // --{ call [edi + kCodeEntryOffset] }------------------------------------------ |
| 1302 | // | RET | args + receiver | caller frame | |
| 1303 | // ^ esp ^ ebp |
| 1304 | |
| 1305 | // =={ prologue of called function }============================================ |
| 1306 | // --{ push ebp }--------------------------------------------------------------- |
| 1307 | // | FP | RET | args + receiver | caller frame | |
| 1308 | // ^ esp ^ ebp |
| 1309 | |
| 1310 | // --{ mov ebp, esp }----------------------------------------------------------- |
| 1311 | // | FP | RET | args + receiver | caller frame | |
| 1312 | // ^ ebp,esp |
| 1313 | |
| 1314 | // --{ push esi }--------------------------------------------------------------- |
| 1315 | // | CTX | FP | RET | args + receiver | caller frame | |
| 1316 | // ^esp ^ ebp |
| 1317 | |
| 1318 | // --{ push edi }--------------------------------------------------------------- |
| 1319 | // | FNC | CTX | FP | RET | args + receiver | caller frame | |
| 1320 | // ^esp ^ ebp |
| 1321 | |
| 1322 | // --{ subi esp, #N }----------------------------------------------------------- |
| 1323 | // | callee frame | FNC | CTX | FP | RET | args + receiver | caller frame | |
| 1324 | // ^esp ^ ebp |
| 1325 | |
| 1326 | // =={ body of called function }================================================ |
| 1327 | |
| 1328 | // =={ epilogue of called function }============================================ |
| 1329 | // --{ mov esp, ebp }----------------------------------------------------------- |
| 1330 | // | FP | RET | args + receiver | caller frame | |
| 1331 | // ^ esp,ebp |
| 1332 | |
| 1333 | // --{ pop ebp }----------------------------------------------------------- |
| 1334 | // | | RET | args + receiver | caller frame | |
| 1335 | // ^ esp ^ ebp |
| 1336 | |
| 1337 | // --{ ret #A+1 }----------------------------------------------------------- |
| 1338 | // | | caller frame | |
| 1339 | // ^ esp ^ ebp |
| 1340 | |
| 1341 | |
| 1342 | // Runtime function calls are accomplished by doing a stub call to the |
| 1343 | // CEntryStub (a real code object). On IA32 passes arguments on the |
| 1344 | // stack, the number of arguments in EAX, the address of the runtime function |
| 1345 | // in EBX, and the context in ESI. |
| 1346 | |
| 1347 | // --{ before the call instruction }-------------------------------------------- |
| 1348 | // | caller frame | |
| 1349 | // ^ esp ^ ebp |
| 1350 | |
| 1351 | // --{ push arguments and setup EAX, EBX, and ESI }----------------------------- |
| 1352 | // | args + receiver | caller frame | |
| 1353 | // ^ esp ^ ebp |
| 1354 | // [eax = #args, ebx = runtime function, esi = context] |
| 1355 | |
| 1356 | // --{ call #CEntryStub }------------------------------------------------------- |
| 1357 | // | RET | args + receiver | caller frame | |
| 1358 | // ^ esp ^ ebp |
| 1359 | |
| 1360 | // =={ body of runtime function }=============================================== |
| 1361 | |
| 1362 | // --{ runtime returns }-------------------------------------------------------- |
| 1363 | // | caller frame | |
| 1364 | // ^ esp ^ ebp |
| 1365 | |
| 1366 | // Other custom linkages (e.g. for calling directly into and out of C++) may |
| 1367 | // need to save callee-saved registers on the stack, which is done in the |
| 1368 | // function prologue of generated code. |
| 1369 | |
| 1370 | // --{ before the call instruction }-------------------------------------------- |
| 1371 | // | caller frame | |
| 1372 | // ^ esp ^ ebp |
| 1373 | |
| 1374 | // --{ set up arguments in registers on stack }--------------------------------- |
| 1375 | // | args | caller frame | |
| 1376 | // ^ esp ^ ebp |
| 1377 | // [r0 = arg0, r1 = arg1, ...] |
| 1378 | |
| 1379 | // --{ call code }-------------------------------------------------------------- |
| 1380 | // | RET | args | caller frame | |
| 1381 | // ^ esp ^ ebp |
| 1382 | |
| 1383 | // =={ prologue of called function }============================================ |
| 1384 | // --{ push ebp }--------------------------------------------------------------- |
| 1385 | // | FP | RET | args | caller frame | |
| 1386 | // ^ esp ^ ebp |
| 1387 | |
| 1388 | // --{ mov ebp, esp }----------------------------------------------------------- |
| 1389 | // | FP | RET | args | caller frame | |
| 1390 | // ^ ebp,esp |
| 1391 | |
| 1392 | // --{ save registers }--------------------------------------------------------- |
| 1393 | // | regs | FP | RET | args | caller frame | |
| 1394 | // ^ esp ^ ebp |
| 1395 | |
| 1396 | // --{ subi esp, #N }----------------------------------------------------------- |
| 1397 | // | callee frame | regs | FP | RET | args | caller frame | |
| 1398 | // ^esp ^ ebp |
| 1399 | |
| 1400 | // =={ body of called function }================================================ |
| 1401 | |
| 1402 | // =={ epilogue of called function }============================================ |
| 1403 | // --{ restore registers }------------------------------------------------------ |
| 1404 | // | regs | FP | RET | args | caller frame | |
| 1405 | // ^ esp ^ ebp |
| 1406 | |
| 1407 | // --{ mov esp, ebp }----------------------------------------------------------- |
| 1408 | // | FP | RET | args | caller frame | |
| 1409 | // ^ esp,ebp |
| 1410 | |
| 1411 | // --{ pop ebp }---------------------------------------------------------------- |
| 1412 | // | RET | args | caller frame | |
| 1413 | // ^ esp ^ ebp |
| 1414 | |
| 1415 | |
| 1416 | void CodeGenerator::AssemblePrologue() { |
| 1417 | CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1418 | if (descriptor->IsCFunctionCall()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1419 | // Assemble a prologue similar the to cdecl calling convention. |
| 1420 | __ push(ebp); |
| 1421 | __ mov(ebp, esp); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1422 | } else if (descriptor->IsJSFunctionCall()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1423 | // TODO(turbofan): this prologue is redundant with OSR, but still needed for |
| 1424 | // code aging. |
| 1425 | __ Prologue(this->info()->GeneratePreagedPrologue()); |
| 1426 | } else if (frame()->needs_frame()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1427 | __ StubPrologue(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1428 | } else { |
| 1429 | frame()->SetElidedFrameSizeInSlots(kPCOnStackSize / kPointerSize); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1430 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1431 | frame_access_state()->SetFrameAccessToDefault(); |
| 1432 | |
| 1433 | int stack_shrink_slots = frame()->GetSpillSlotCount(); |
| 1434 | if (info()->is_osr()) { |
| 1435 | // TurboFan OSR-compiled functions cannot be entered directly. |
| 1436 | __ Abort(kShouldNotDirectlyEnterOsrFunction); |
| 1437 | |
| 1438 | // Unoptimized code jumps directly to this entrypoint while the unoptimized |
| 1439 | // frame is still on the stack. Optimized code uses OSR values directly from |
| 1440 | // the unoptimized frame. Thus, all that needs to be done is to allocate the |
| 1441 | // remaining stack slots. |
| 1442 | if (FLAG_code_comments) __ RecordComment("-- OSR entrypoint --"); |
| 1443 | osr_pc_offset_ = __ pc_offset(); |
| 1444 | // TODO(titzer): cannot address target function == local #-1 |
| 1445 | __ mov(edi, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
| 1446 | stack_shrink_slots -= OsrHelper(info()).UnoptimizedFrameSlots(); |
| 1447 | } |
| 1448 | |
| 1449 | const RegList saves = descriptor->CalleeSavedRegisters(); |
| 1450 | if (stack_shrink_slots > 0) { |
| 1451 | __ sub(esp, Immediate(stack_shrink_slots * kPointerSize)); |
| 1452 | } |
| 1453 | |
| 1454 | if (saves != 0) { // Save callee-saved registers. |
| 1455 | DCHECK(!info()->is_osr()); |
| 1456 | int pushed = 0; |
| 1457 | for (int i = Register::kNumRegisters - 1; i >= 0; i--) { |
| 1458 | if (!((1 << i) & saves)) continue; |
| 1459 | __ push(Register::from_code(i)); |
| 1460 | ++pushed; |
| 1461 | } |
| 1462 | frame()->AllocateSavedCalleeRegisterSlots(pushed); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1463 | } |
| 1464 | } |
| 1465 | |
| 1466 | |
| 1467 | void CodeGenerator::AssembleReturn() { |
| 1468 | CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1469 | |
| 1470 | const RegList saves = descriptor->CalleeSavedRegisters(); |
| 1471 | // Restore registers. |
| 1472 | if (saves != 0) { |
| 1473 | for (int i = 0; i < Register::kNumRegisters; i++) { |
| 1474 | if (!((1 << i) & saves)) continue; |
| 1475 | __ pop(Register::from_code(i)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1476 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1477 | } |
| 1478 | |
| 1479 | if (descriptor->IsCFunctionCall()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1480 | __ mov(esp, ebp); // Move stack pointer back to frame pointer. |
| 1481 | __ pop(ebp); // Pop caller's frame pointer. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1482 | } else if (frame()->needs_frame()) { |
| 1483 | // Canonicalize JSFunction return sites for now. |
| 1484 | if (return_label_.is_bound()) { |
| 1485 | __ jmp(&return_label_); |
| 1486 | return; |
| 1487 | } else { |
| 1488 | __ bind(&return_label_); |
| 1489 | __ mov(esp, ebp); // Move stack pointer back to frame pointer. |
| 1490 | __ pop(ebp); // Pop caller's frame pointer. |
| 1491 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1492 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1493 | size_t pop_size = descriptor->StackParameterCount() * kPointerSize; |
| 1494 | // Might need ecx for scratch if pop_size is too big. |
| 1495 | DCHECK_EQ(0u, descriptor->CalleeSavedRegisters() & ecx.bit()); |
| 1496 | __ Ret(static_cast<int>(pop_size), ecx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1497 | } |
| 1498 | |
| 1499 | |
| 1500 | void CodeGenerator::AssembleMove(InstructionOperand* source, |
| 1501 | InstructionOperand* destination) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1502 | IA32OperandConverter g(this, nullptr); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1503 | // Dispatch on the source and destination operand kinds. Not all |
| 1504 | // combinations are possible. |
| 1505 | if (source->IsRegister()) { |
| 1506 | DCHECK(destination->IsRegister() || destination->IsStackSlot()); |
| 1507 | Register src = g.ToRegister(source); |
| 1508 | Operand dst = g.ToOperand(destination); |
| 1509 | __ mov(dst, src); |
| 1510 | } else if (source->IsStackSlot()) { |
| 1511 | DCHECK(destination->IsRegister() || destination->IsStackSlot()); |
| 1512 | Operand src = g.ToOperand(source); |
| 1513 | if (destination->IsRegister()) { |
| 1514 | Register dst = g.ToRegister(destination); |
| 1515 | __ mov(dst, src); |
| 1516 | } else { |
| 1517 | Operand dst = g.ToOperand(destination); |
| 1518 | __ push(src); |
| 1519 | __ pop(dst); |
| 1520 | } |
| 1521 | } else if (source->IsConstant()) { |
| 1522 | Constant src_constant = g.ToConstant(source); |
| 1523 | if (src_constant.type() == Constant::kHeapObject) { |
| 1524 | Handle<HeapObject> src = src_constant.ToHeapObject(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1525 | int offset; |
| 1526 | if (IsMaterializableFromFrame(src, &offset)) { |
| 1527 | if (destination->IsRegister()) { |
| 1528 | Register dst = g.ToRegister(destination); |
| 1529 | __ mov(dst, g.ToMaterializableOperand(offset)); |
| 1530 | } else { |
| 1531 | DCHECK(destination->IsStackSlot()); |
| 1532 | Operand dst = g.ToOperand(destination); |
| 1533 | __ push(g.ToMaterializableOperand(offset)); |
| 1534 | __ pop(dst); |
| 1535 | } |
| 1536 | } else if (destination->IsRegister()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1537 | Register dst = g.ToRegister(destination); |
| 1538 | __ LoadHeapObject(dst, src); |
| 1539 | } else { |
| 1540 | DCHECK(destination->IsStackSlot()); |
| 1541 | Operand dst = g.ToOperand(destination); |
| 1542 | AllowDeferredHandleDereference embedding_raw_address; |
| 1543 | if (isolate()->heap()->InNewSpace(*src)) { |
| 1544 | __ PushHeapObject(src); |
| 1545 | __ pop(dst); |
| 1546 | } else { |
| 1547 | __ mov(dst, src); |
| 1548 | } |
| 1549 | } |
| 1550 | } else if (destination->IsRegister()) { |
| 1551 | Register dst = g.ToRegister(destination); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1552 | __ Move(dst, g.ToImmediate(source)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1553 | } else if (destination->IsStackSlot()) { |
| 1554 | Operand dst = g.ToOperand(destination); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1555 | __ Move(dst, g.ToImmediate(source)); |
| 1556 | } else if (src_constant.type() == Constant::kFloat32) { |
| 1557 | // TODO(turbofan): Can we do better here? |
| 1558 | uint32_t src = bit_cast<uint32_t>(src_constant.ToFloat32()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1559 | if (destination->IsDoubleRegister()) { |
| 1560 | XMMRegister dst = g.ToDoubleRegister(destination); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1561 | __ Move(dst, src); |
| 1562 | } else { |
| 1563 | DCHECK(destination->IsDoubleStackSlot()); |
| 1564 | Operand dst = g.ToOperand(destination); |
| 1565 | __ Move(dst, Immediate(src)); |
| 1566 | } |
| 1567 | } else { |
| 1568 | DCHECK_EQ(Constant::kFloat64, src_constant.type()); |
| 1569 | uint64_t src = bit_cast<uint64_t>(src_constant.ToFloat64()); |
| 1570 | uint32_t lower = static_cast<uint32_t>(src); |
| 1571 | uint32_t upper = static_cast<uint32_t>(src >> 32); |
| 1572 | if (destination->IsDoubleRegister()) { |
| 1573 | XMMRegister dst = g.ToDoubleRegister(destination); |
| 1574 | __ Move(dst, src); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1575 | } else { |
| 1576 | DCHECK(destination->IsDoubleStackSlot()); |
| 1577 | Operand dst0 = g.ToOperand(destination); |
| 1578 | Operand dst1 = g.HighOperand(destination); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1579 | __ Move(dst0, Immediate(lower)); |
| 1580 | __ Move(dst1, Immediate(upper)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1581 | } |
| 1582 | } |
| 1583 | } else if (source->IsDoubleRegister()) { |
| 1584 | XMMRegister src = g.ToDoubleRegister(source); |
| 1585 | if (destination->IsDoubleRegister()) { |
| 1586 | XMMRegister dst = g.ToDoubleRegister(destination); |
| 1587 | __ movaps(dst, src); |
| 1588 | } else { |
| 1589 | DCHECK(destination->IsDoubleStackSlot()); |
| 1590 | Operand dst = g.ToOperand(destination); |
| 1591 | __ movsd(dst, src); |
| 1592 | } |
| 1593 | } else if (source->IsDoubleStackSlot()) { |
| 1594 | DCHECK(destination->IsDoubleRegister() || destination->IsDoubleStackSlot()); |
| 1595 | Operand src = g.ToOperand(source); |
| 1596 | if (destination->IsDoubleRegister()) { |
| 1597 | XMMRegister dst = g.ToDoubleRegister(destination); |
| 1598 | __ movsd(dst, src); |
| 1599 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1600 | Operand dst = g.ToOperand(destination); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1601 | __ movsd(kScratchDoubleReg, src); |
| 1602 | __ movsd(dst, kScratchDoubleReg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1603 | } |
| 1604 | } else { |
| 1605 | UNREACHABLE(); |
| 1606 | } |
| 1607 | } |
| 1608 | |
| 1609 | |
| 1610 | void CodeGenerator::AssembleSwap(InstructionOperand* source, |
| 1611 | InstructionOperand* destination) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1612 | IA32OperandConverter g(this, nullptr); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1613 | // Dispatch on the source and destination operand kinds. Not all |
| 1614 | // combinations are possible. |
| 1615 | if (source->IsRegister() && destination->IsRegister()) { |
| 1616 | // Register-register. |
| 1617 | Register src = g.ToRegister(source); |
| 1618 | Register dst = g.ToRegister(destination); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1619 | __ push(src); |
| 1620 | __ mov(src, dst); |
| 1621 | __ pop(dst); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1622 | } else if (source->IsRegister() && destination->IsStackSlot()) { |
| 1623 | // Register-memory. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1624 | Register src = g.ToRegister(source); |
| 1625 | __ push(src); |
| 1626 | frame_access_state()->IncreaseSPDelta(1); |
| 1627 | Operand dst = g.ToOperand(destination); |
| 1628 | __ mov(src, dst); |
| 1629 | frame_access_state()->IncreaseSPDelta(-1); |
| 1630 | dst = g.ToOperand(destination); |
| 1631 | __ pop(dst); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1632 | } else if (source->IsStackSlot() && destination->IsStackSlot()) { |
| 1633 | // Memory-memory. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1634 | Operand dst1 = g.ToOperand(destination); |
| 1635 | __ push(dst1); |
| 1636 | frame_access_state()->IncreaseSPDelta(1); |
| 1637 | Operand src1 = g.ToOperand(source); |
| 1638 | __ push(src1); |
| 1639 | Operand dst2 = g.ToOperand(destination); |
| 1640 | __ pop(dst2); |
| 1641 | frame_access_state()->IncreaseSPDelta(-1); |
| 1642 | Operand src2 = g.ToOperand(source); |
| 1643 | __ pop(src2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1644 | } else if (source->IsDoubleRegister() && destination->IsDoubleRegister()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1645 | // XMM register-register swap. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1646 | XMMRegister src = g.ToDoubleRegister(source); |
| 1647 | XMMRegister dst = g.ToDoubleRegister(destination); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1648 | __ movaps(kScratchDoubleReg, src); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1649 | __ movaps(src, dst); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1650 | __ movaps(dst, kScratchDoubleReg); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1651 | } else if (source->IsDoubleRegister() && destination->IsDoubleStackSlot()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1652 | // XMM register-memory swap. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1653 | XMMRegister reg = g.ToDoubleRegister(source); |
| 1654 | Operand other = g.ToOperand(destination); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1655 | __ movsd(kScratchDoubleReg, other); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1656 | __ movsd(other, reg); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1657 | __ movaps(reg, kScratchDoubleReg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1658 | } else if (source->IsDoubleStackSlot() && destination->IsDoubleStackSlot()) { |
| 1659 | // Double-width memory-to-memory. |
| 1660 | Operand src0 = g.ToOperand(source); |
| 1661 | Operand src1 = g.HighOperand(source); |
| 1662 | Operand dst0 = g.ToOperand(destination); |
| 1663 | Operand dst1 = g.HighOperand(destination); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1664 | __ movsd(kScratchDoubleReg, dst0); // Save destination in scratch register. |
| 1665 | __ push(src0); // Then use stack to copy source to destination. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1666 | __ pop(dst0); |
| 1667 | __ push(src1); |
| 1668 | __ pop(dst1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1669 | __ movsd(src0, kScratchDoubleReg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1670 | } else { |
| 1671 | // No other combinations are possible. |
| 1672 | UNREACHABLE(); |
| 1673 | } |
| 1674 | } |
| 1675 | |
| 1676 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1677 | void CodeGenerator::AssembleJumpTable(Label** targets, size_t target_count) { |
| 1678 | for (size_t index = 0; index < target_count; ++index) { |
| 1679 | __ dd(targets[index]); |
| 1680 | } |
| 1681 | } |
| 1682 | |
| 1683 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1684 | void CodeGenerator::AddNopForSmiCodeInlining() { __ nop(); } |
| 1685 | |
| 1686 | |
| 1687 | void CodeGenerator::EnsureSpaceForLazyDeopt() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1688 | if (!info()->ShouldEnsureSpaceForLazyDeopt()) { |
| 1689 | return; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1690 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 1691 | |
| 1692 | int space_needed = Deoptimizer::patch_size(); |
| 1693 | // Ensure that we have enough space after the previous lazy-bailout |
| 1694 | // instruction for patching the code here. |
| 1695 | int current_pc = masm()->pc_offset(); |
| 1696 | if (current_pc < last_lazy_deopt_pc_ + space_needed) { |
| 1697 | int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; |
| 1698 | __ Nop(padding_size); |
| 1699 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1700 | } |
| 1701 | |
| 1702 | #undef __ |
| 1703 | |
| 1704 | } // namespace compiler |
| 1705 | } // namespace internal |
| 1706 | } // namespace v8 |