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/code-generator.h" |
| 6 | |
| 7 | #include "src/arm/macro-assembler-arm.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8 | #include "src/ast/scopes.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 9 | #include "src/compiler/code-generator-impl.h" |
| 10 | #include "src/compiler/gap-resolver.h" |
| 11 | #include "src/compiler/node-matchers.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 12 | #include "src/compiler/osr.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 13 | |
| 14 | namespace v8 { |
| 15 | namespace internal { |
| 16 | namespace compiler { |
| 17 | |
| 18 | #define __ masm()-> |
| 19 | |
| 20 | |
| 21 | #define kScratchReg r9 |
| 22 | |
| 23 | |
| 24 | // Adds Arm-specific methods to convert InstructionOperands. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 25 | class ArmOperandConverter final : public InstructionOperandConverter { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 26 | public: |
| 27 | ArmOperandConverter(CodeGenerator* gen, Instruction* instr) |
| 28 | : InstructionOperandConverter(gen, instr) {} |
| 29 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 30 | SwVfpRegister OutputFloat32Register(size_t index = 0) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 31 | return ToFloat32Register(instr_->OutputAt(index)); |
| 32 | } |
| 33 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 34 | SwVfpRegister InputFloat32Register(size_t index) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 35 | return ToFloat32Register(instr_->InputAt(index)); |
| 36 | } |
| 37 | |
| 38 | SwVfpRegister ToFloat32Register(InstructionOperand* op) { |
| 39 | return ToFloat64Register(op).low(); |
| 40 | } |
| 41 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 42 | LowDwVfpRegister OutputFloat64Register(size_t index = 0) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 43 | return ToFloat64Register(instr_->OutputAt(index)); |
| 44 | } |
| 45 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 46 | LowDwVfpRegister InputFloat64Register(size_t index) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 47 | return ToFloat64Register(instr_->InputAt(index)); |
| 48 | } |
| 49 | |
| 50 | LowDwVfpRegister ToFloat64Register(InstructionOperand* op) { |
| 51 | return LowDwVfpRegister::from_code(ToDoubleRegister(op).code()); |
| 52 | } |
| 53 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 54 | SBit OutputSBit() const { |
| 55 | switch (instr_->flags_mode()) { |
| 56 | case kFlags_branch: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 57 | case kFlags_deoptimize: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 58 | case kFlags_set: |
| 59 | return SetCC; |
| 60 | case kFlags_none: |
| 61 | return LeaveCC; |
| 62 | } |
| 63 | UNREACHABLE(); |
| 64 | return LeaveCC; |
| 65 | } |
| 66 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 67 | Operand InputImmediate(size_t index) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 68 | Constant constant = ToConstant(instr_->InputAt(index)); |
| 69 | switch (constant.type()) { |
| 70 | case Constant::kInt32: |
| 71 | return Operand(constant.ToInt32()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 72 | case Constant::kFloat32: |
| 73 | return Operand( |
| 74 | isolate()->factory()->NewNumber(constant.ToFloat32(), TENURED)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 75 | case Constant::kFloat64: |
| 76 | return Operand( |
| 77 | isolate()->factory()->NewNumber(constant.ToFloat64(), TENURED)); |
| 78 | case Constant::kInt64: |
| 79 | case Constant::kExternalReference: |
| 80 | case Constant::kHeapObject: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 81 | case Constant::kRpoNumber: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 82 | break; |
| 83 | } |
| 84 | UNREACHABLE(); |
| 85 | return Operand::Zero(); |
| 86 | } |
| 87 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 88 | Operand InputOperand2(size_t first_index) { |
| 89 | const size_t index = first_index; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 90 | switch (AddressingModeField::decode(instr_->opcode())) { |
| 91 | case kMode_None: |
| 92 | case kMode_Offset_RI: |
| 93 | case kMode_Offset_RR: |
| 94 | break; |
| 95 | case kMode_Operand2_I: |
| 96 | return InputImmediate(index + 0); |
| 97 | case kMode_Operand2_R: |
| 98 | return Operand(InputRegister(index + 0)); |
| 99 | case kMode_Operand2_R_ASR_I: |
| 100 | return Operand(InputRegister(index + 0), ASR, InputInt5(index + 1)); |
| 101 | case kMode_Operand2_R_ASR_R: |
| 102 | return Operand(InputRegister(index + 0), ASR, InputRegister(index + 1)); |
| 103 | case kMode_Operand2_R_LSL_I: |
| 104 | return Operand(InputRegister(index + 0), LSL, InputInt5(index + 1)); |
| 105 | case kMode_Operand2_R_LSL_R: |
| 106 | return Operand(InputRegister(index + 0), LSL, InputRegister(index + 1)); |
| 107 | case kMode_Operand2_R_LSR_I: |
| 108 | return Operand(InputRegister(index + 0), LSR, InputInt5(index + 1)); |
| 109 | case kMode_Operand2_R_LSR_R: |
| 110 | return Operand(InputRegister(index + 0), LSR, InputRegister(index + 1)); |
| 111 | case kMode_Operand2_R_ROR_I: |
| 112 | return Operand(InputRegister(index + 0), ROR, InputInt5(index + 1)); |
| 113 | case kMode_Operand2_R_ROR_R: |
| 114 | return Operand(InputRegister(index + 0), ROR, InputRegister(index + 1)); |
| 115 | } |
| 116 | UNREACHABLE(); |
| 117 | return Operand::Zero(); |
| 118 | } |
| 119 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 120 | MemOperand InputOffset(size_t* first_index) { |
| 121 | const size_t index = *first_index; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 122 | switch (AddressingModeField::decode(instr_->opcode())) { |
| 123 | case kMode_None: |
| 124 | case kMode_Operand2_I: |
| 125 | case kMode_Operand2_R: |
| 126 | case kMode_Operand2_R_ASR_I: |
| 127 | case kMode_Operand2_R_ASR_R: |
| 128 | case kMode_Operand2_R_LSL_I: |
| 129 | case kMode_Operand2_R_LSL_R: |
| 130 | case kMode_Operand2_R_LSR_I: |
| 131 | case kMode_Operand2_R_LSR_R: |
| 132 | case kMode_Operand2_R_ROR_I: |
| 133 | case kMode_Operand2_R_ROR_R: |
| 134 | break; |
| 135 | case kMode_Offset_RI: |
| 136 | *first_index += 2; |
| 137 | return MemOperand(InputRegister(index + 0), InputInt32(index + 1)); |
| 138 | case kMode_Offset_RR: |
| 139 | *first_index += 2; |
| 140 | return MemOperand(InputRegister(index + 0), InputRegister(index + 1)); |
| 141 | } |
| 142 | UNREACHABLE(); |
| 143 | return MemOperand(r0); |
| 144 | } |
| 145 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 146 | MemOperand InputOffset(size_t first_index = 0) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 147 | return InputOffset(&first_index); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 148 | } |
| 149 | |
| 150 | MemOperand ToMemOperand(InstructionOperand* op) const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 151 | DCHECK_NOT_NULL(op); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 152 | DCHECK(op->IsStackSlot() || op->IsDoubleStackSlot()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 153 | return SlotToMemOperand(AllocatedOperand::cast(op)->index()); |
| 154 | } |
| 155 | |
| 156 | MemOperand SlotToMemOperand(int slot) const { |
| 157 | FrameOffset offset = frame_access_state()->GetFrameOffset(slot); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 158 | return MemOperand(offset.from_stack_pointer() ? sp : fp, offset.offset()); |
| 159 | } |
| 160 | }; |
| 161 | |
| 162 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 163 | namespace { |
| 164 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 165 | class OutOfLineLoadFloat32 final : public OutOfLineCode { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 166 | public: |
| 167 | OutOfLineLoadFloat32(CodeGenerator* gen, SwVfpRegister result) |
| 168 | : OutOfLineCode(gen), result_(result) {} |
| 169 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 170 | void Generate() final { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 171 | // Compute sqrtf(-1.0f), which results in a quiet single-precision NaN. |
| 172 | __ vmov(result_, -1.0f); |
| 173 | __ vsqrt(result_, result_); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 174 | } |
| 175 | |
| 176 | private: |
| 177 | SwVfpRegister const result_; |
| 178 | }; |
| 179 | |
| 180 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 181 | class OutOfLineLoadFloat64 final : public OutOfLineCode { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 182 | public: |
| 183 | OutOfLineLoadFloat64(CodeGenerator* gen, DwVfpRegister result) |
| 184 | : OutOfLineCode(gen), result_(result) {} |
| 185 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 186 | void Generate() final { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 187 | // Compute sqrt(-1.0), which results in a quiet double-precision NaN. |
| 188 | __ vmov(result_, -1.0); |
| 189 | __ vsqrt(result_, result_); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 190 | } |
| 191 | |
| 192 | private: |
| 193 | DwVfpRegister const result_; |
| 194 | }; |
| 195 | |
| 196 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 197 | class OutOfLineLoadInteger final : public OutOfLineCode { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 198 | public: |
| 199 | OutOfLineLoadInteger(CodeGenerator* gen, Register result) |
| 200 | : OutOfLineCode(gen), result_(result) {} |
| 201 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 202 | void Generate() final { __ mov(result_, Operand::Zero()); } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 203 | |
| 204 | private: |
| 205 | Register const result_; |
| 206 | }; |
| 207 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 208 | |
| 209 | class OutOfLineRecordWrite final : public OutOfLineCode { |
| 210 | public: |
| 211 | OutOfLineRecordWrite(CodeGenerator* gen, Register object, Register index, |
| 212 | Register value, Register scratch0, Register scratch1, |
| 213 | RecordWriteMode mode) |
| 214 | : OutOfLineCode(gen), |
| 215 | object_(object), |
| 216 | index_(index), |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 217 | index_immediate_(0), |
| 218 | value_(value), |
| 219 | scratch0_(scratch0), |
| 220 | scratch1_(scratch1), |
| 221 | mode_(mode) {} |
| 222 | |
| 223 | OutOfLineRecordWrite(CodeGenerator* gen, Register object, int32_t index, |
| 224 | Register value, Register scratch0, Register scratch1, |
| 225 | RecordWriteMode mode) |
| 226 | : OutOfLineCode(gen), |
| 227 | object_(object), |
| 228 | index_(no_reg), |
| 229 | index_immediate_(index), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 230 | value_(value), |
| 231 | scratch0_(scratch0), |
| 232 | scratch1_(scratch1), |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 233 | mode_(mode), |
| 234 | must_save_lr_(!gen->frame_access_state()->has_frame()) {} |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 235 | |
| 236 | void Generate() final { |
| 237 | if (mode_ > RecordWriteMode::kValueIsPointer) { |
| 238 | __ JumpIfSmi(value_, exit()); |
| 239 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 240 | __ CheckPageFlag(value_, scratch0_, |
| 241 | MemoryChunk::kPointersToHereAreInterestingMask, eq, |
| 242 | exit()); |
| 243 | RememberedSetAction const remembered_set_action = |
| 244 | mode_ > RecordWriteMode::kValueIsMap ? EMIT_REMEMBERED_SET |
| 245 | : OMIT_REMEMBERED_SET; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 246 | SaveFPRegsMode const save_fp_mode = |
| 247 | frame()->DidAllocateDoubleRegisters() ? kSaveFPRegs : kDontSaveFPRegs; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 248 | if (must_save_lr_) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 249 | // We need to save and restore lr if the frame was elided. |
| 250 | __ Push(lr); |
| 251 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 252 | RecordWriteStub stub(isolate(), object_, scratch0_, scratch1_, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 253 | remembered_set_action, save_fp_mode); |
| 254 | if (index_.is(no_reg)) { |
| 255 | __ add(scratch1_, object_, Operand(index_immediate_)); |
| 256 | } else { |
| 257 | DCHECK_EQ(0, index_immediate_); |
| 258 | __ add(scratch1_, object_, Operand(index_)); |
| 259 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 260 | __ CallStub(&stub); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 261 | if (must_save_lr_) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 262 | __ Pop(lr); |
| 263 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 264 | } |
| 265 | |
| 266 | private: |
| 267 | Register const object_; |
| 268 | Register const index_; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 269 | int32_t const index_immediate_; // Valid if index_.is(no_reg). |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 270 | Register const value_; |
| 271 | Register const scratch0_; |
| 272 | Register const scratch1_; |
| 273 | RecordWriteMode const mode_; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 274 | bool must_save_lr_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 275 | }; |
| 276 | |
| 277 | |
| 278 | Condition FlagsConditionToCondition(FlagsCondition condition) { |
| 279 | switch (condition) { |
| 280 | case kEqual: |
| 281 | return eq; |
| 282 | case kNotEqual: |
| 283 | return ne; |
| 284 | case kSignedLessThan: |
| 285 | return lt; |
| 286 | case kSignedGreaterThanOrEqual: |
| 287 | return ge; |
| 288 | case kSignedLessThanOrEqual: |
| 289 | return le; |
| 290 | case kSignedGreaterThan: |
| 291 | return gt; |
| 292 | case kUnsignedLessThan: |
| 293 | return lo; |
| 294 | case kUnsignedGreaterThanOrEqual: |
| 295 | return hs; |
| 296 | case kUnsignedLessThanOrEqual: |
| 297 | return ls; |
| 298 | case kUnsignedGreaterThan: |
| 299 | return hi; |
| 300 | case kFloatLessThanOrUnordered: |
| 301 | return lt; |
| 302 | case kFloatGreaterThanOrEqual: |
| 303 | return ge; |
| 304 | case kFloatLessThanOrEqual: |
| 305 | return ls; |
| 306 | case kFloatGreaterThanOrUnordered: |
| 307 | return hi; |
| 308 | case kFloatLessThan: |
| 309 | return lo; |
| 310 | case kFloatGreaterThanOrEqualOrUnordered: |
| 311 | return hs; |
| 312 | case kFloatLessThanOrEqualOrUnordered: |
| 313 | return le; |
| 314 | case kFloatGreaterThan: |
| 315 | return gt; |
| 316 | case kOverflow: |
| 317 | return vs; |
| 318 | case kNotOverflow: |
| 319 | return vc; |
| 320 | default: |
| 321 | break; |
| 322 | } |
| 323 | UNREACHABLE(); |
| 324 | return kNoCondition; |
| 325 | } |
| 326 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 327 | } // namespace |
| 328 | |
| 329 | |
| 330 | #define ASSEMBLE_CHECKED_LOAD_FLOAT(width) \ |
| 331 | do { \ |
| 332 | auto result = i.OutputFloat##width##Register(); \ |
| 333 | auto offset = i.InputRegister(0); \ |
| 334 | if (instr->InputAt(1)->IsRegister()) { \ |
| 335 | __ cmp(offset, i.InputRegister(1)); \ |
| 336 | } else { \ |
| 337 | __ cmp(offset, i.InputImmediate(1)); \ |
| 338 | } \ |
| 339 | auto ool = new (zone()) OutOfLineLoadFloat##width(this, result); \ |
| 340 | __ b(hs, ool->entry()); \ |
| 341 | __ vldr(result, i.InputOffset(2)); \ |
| 342 | __ bind(ool->exit()); \ |
| 343 | DCHECK_EQ(LeaveCC, i.OutputSBit()); \ |
| 344 | } while (0) |
| 345 | |
| 346 | |
| 347 | #define ASSEMBLE_CHECKED_LOAD_INTEGER(asm_instr) \ |
| 348 | do { \ |
| 349 | auto result = i.OutputRegister(); \ |
| 350 | auto offset = i.InputRegister(0); \ |
| 351 | if (instr->InputAt(1)->IsRegister()) { \ |
| 352 | __ cmp(offset, i.InputRegister(1)); \ |
| 353 | } else { \ |
| 354 | __ cmp(offset, i.InputImmediate(1)); \ |
| 355 | } \ |
| 356 | auto ool = new (zone()) OutOfLineLoadInteger(this, result); \ |
| 357 | __ b(hs, ool->entry()); \ |
| 358 | __ asm_instr(result, i.InputOffset(2)); \ |
| 359 | __ bind(ool->exit()); \ |
| 360 | DCHECK_EQ(LeaveCC, i.OutputSBit()); \ |
| 361 | } while (0) |
| 362 | |
| 363 | |
| 364 | #define ASSEMBLE_CHECKED_STORE_FLOAT(width) \ |
| 365 | do { \ |
| 366 | auto offset = i.InputRegister(0); \ |
| 367 | if (instr->InputAt(1)->IsRegister()) { \ |
| 368 | __ cmp(offset, i.InputRegister(1)); \ |
| 369 | } else { \ |
| 370 | __ cmp(offset, i.InputImmediate(1)); \ |
| 371 | } \ |
| 372 | auto value = i.InputFloat##width##Register(2); \ |
| 373 | __ vstr(value, i.InputOffset(3), lo); \ |
| 374 | DCHECK_EQ(LeaveCC, i.OutputSBit()); \ |
| 375 | } while (0) |
| 376 | |
| 377 | |
| 378 | #define ASSEMBLE_CHECKED_STORE_INTEGER(asm_instr) \ |
| 379 | do { \ |
| 380 | auto offset = i.InputRegister(0); \ |
| 381 | if (instr->InputAt(1)->IsRegister()) { \ |
| 382 | __ cmp(offset, i.InputRegister(1)); \ |
| 383 | } else { \ |
| 384 | __ cmp(offset, i.InputImmediate(1)); \ |
| 385 | } \ |
| 386 | auto value = i.InputRegister(2); \ |
| 387 | __ asm_instr(value, i.InputOffset(3), lo); \ |
| 388 | DCHECK_EQ(LeaveCC, i.OutputSBit()); \ |
| 389 | } while (0) |
| 390 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 391 | void CodeGenerator::AssembleDeconstructFrame() { |
| 392 | __ LeaveFrame(StackFrame::MANUAL); |
| 393 | } |
| 394 | |
| 395 | void CodeGenerator::AssembleSetupStackPointer() {} |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 396 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 397 | void CodeGenerator::AssembleDeconstructActivationRecord(int stack_param_delta) { |
| 398 | int sp_slot_delta = TailCallFrameStackSlotDelta(stack_param_delta); |
| 399 | if (sp_slot_delta > 0) { |
| 400 | __ add(sp, sp, Operand(sp_slot_delta * kPointerSize)); |
| 401 | } |
| 402 | frame_access_state()->SetFrameAccessToDefault(); |
| 403 | } |
| 404 | |
| 405 | |
| 406 | void CodeGenerator::AssemblePrepareTailCall(int stack_param_delta) { |
| 407 | int sp_slot_delta = TailCallFrameStackSlotDelta(stack_param_delta); |
| 408 | if (sp_slot_delta < 0) { |
| 409 | __ sub(sp, sp, Operand(-sp_slot_delta * kPointerSize)); |
| 410 | frame_access_state()->IncreaseSPDelta(-sp_slot_delta); |
| 411 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 412 | if (frame_access_state()->has_frame()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 413 | if (FLAG_enable_embedded_constant_pool) { |
| 414 | __ ldr(cp, MemOperand(fp, StandardFrameConstants::kConstantPoolOffset)); |
| 415 | } |
| 416 | __ ldr(lr, MemOperand(fp, StandardFrameConstants::kCallerPCOffset)); |
| 417 | __ ldr(fp, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); |
| 418 | } |
| 419 | frame_access_state()->SetFrameAccessToSP(); |
| 420 | } |
| 421 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 422 | void CodeGenerator::AssemblePopArgumentsAdaptorFrame(Register args_reg, |
| 423 | Register scratch1, |
| 424 | Register scratch2, |
| 425 | Register scratch3) { |
| 426 | DCHECK(!AreAliased(args_reg, scratch1, scratch2, scratch3)); |
| 427 | Label done; |
| 428 | |
| 429 | // Check if current frame is an arguments adaptor frame. |
| 430 | __ ldr(scratch1, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 431 | __ cmp(scratch1, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
| 432 | __ b(ne, &done); |
| 433 | |
| 434 | // Load arguments count from current arguments adaptor frame (note, it |
| 435 | // does not include receiver). |
| 436 | Register caller_args_count_reg = scratch1; |
| 437 | __ ldr(caller_args_count_reg, |
| 438 | MemOperand(fp, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 439 | __ SmiUntag(caller_args_count_reg); |
| 440 | |
| 441 | ParameterCount callee_args_count(args_reg); |
| 442 | __ PrepareForTailCall(callee_args_count, caller_args_count_reg, scratch2, |
| 443 | scratch3); |
| 444 | __ bind(&done); |
| 445 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 446 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 447 | // Assembles an instruction after register allocation, producing machine code. |
| 448 | void CodeGenerator::AssembleArchInstruction(Instruction* instr) { |
| 449 | ArmOperandConverter i(this, instr); |
| 450 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 451 | __ MaybeCheckConstPool(); |
| 452 | InstructionCode opcode = instr->opcode(); |
| 453 | ArchOpcode arch_opcode = ArchOpcodeField::decode(opcode); |
| 454 | switch (arch_opcode) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 455 | case kArchCallCodeObject: { |
| 456 | EnsureSpaceForLazyDeopt(); |
| 457 | if (instr->InputAt(0)->IsImmediate()) { |
| 458 | __ Call(Handle<Code>::cast(i.InputHeapObject(0)), |
| 459 | RelocInfo::CODE_TARGET); |
| 460 | } else { |
| 461 | __ add(ip, i.InputRegister(0), |
| 462 | Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 463 | __ Call(ip); |
| 464 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 465 | RecordCallPosition(instr); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 466 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 467 | frame_access_state()->ClearSPDelta(); |
| 468 | break; |
| 469 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 470 | case kArchTailCallCodeObjectFromJSFunction: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 471 | case kArchTailCallCodeObject: { |
| 472 | int stack_param_delta = i.InputInt32(instr->InputCount() - 1); |
| 473 | AssembleDeconstructActivationRecord(stack_param_delta); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 474 | if (arch_opcode == kArchTailCallCodeObjectFromJSFunction) { |
| 475 | AssemblePopArgumentsAdaptorFrame(kJavaScriptCallArgCountRegister, |
| 476 | i.TempRegister(0), i.TempRegister(1), |
| 477 | i.TempRegister(2)); |
| 478 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 479 | if (instr->InputAt(0)->IsImmediate()) { |
| 480 | __ Jump(Handle<Code>::cast(i.InputHeapObject(0)), |
| 481 | RelocInfo::CODE_TARGET); |
| 482 | } else { |
| 483 | __ add(ip, i.InputRegister(0), |
| 484 | Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 485 | __ Jump(ip); |
| 486 | } |
| 487 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 488 | frame_access_state()->ClearSPDelta(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 489 | break; |
| 490 | } |
| 491 | case kArchCallJSFunction: { |
| 492 | EnsureSpaceForLazyDeopt(); |
| 493 | Register func = i.InputRegister(0); |
| 494 | if (FLAG_debug_code) { |
| 495 | // Check the function's context matches the context argument. |
| 496 | __ ldr(kScratchReg, FieldMemOperand(func, JSFunction::kContextOffset)); |
| 497 | __ cmp(cp, kScratchReg); |
| 498 | __ Assert(eq, kWrongFunctionContext); |
| 499 | } |
| 500 | __ ldr(ip, FieldMemOperand(func, JSFunction::kCodeEntryOffset)); |
| 501 | __ Call(ip); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 502 | RecordCallPosition(instr); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 503 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 504 | frame_access_state()->ClearSPDelta(); |
| 505 | break; |
| 506 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 507 | case kArchTailCallJSFunctionFromJSFunction: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 508 | case kArchTailCallJSFunction: { |
| 509 | Register func = i.InputRegister(0); |
| 510 | if (FLAG_debug_code) { |
| 511 | // Check the function's context matches the context argument. |
| 512 | __ ldr(kScratchReg, FieldMemOperand(func, JSFunction::kContextOffset)); |
| 513 | __ cmp(cp, kScratchReg); |
| 514 | __ Assert(eq, kWrongFunctionContext); |
| 515 | } |
| 516 | int stack_param_delta = i.InputInt32(instr->InputCount() - 1); |
| 517 | AssembleDeconstructActivationRecord(stack_param_delta); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 518 | if (arch_opcode == kArchTailCallJSFunctionFromJSFunction) { |
| 519 | AssemblePopArgumentsAdaptorFrame(kJavaScriptCallArgCountRegister, |
| 520 | i.TempRegister(0), i.TempRegister(1), |
| 521 | i.TempRegister(2)); |
| 522 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 523 | __ ldr(ip, FieldMemOperand(func, JSFunction::kCodeEntryOffset)); |
| 524 | __ Jump(ip); |
| 525 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 526 | frame_access_state()->ClearSPDelta(); |
| 527 | break; |
| 528 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 529 | case kArchPrepareCallCFunction: { |
| 530 | int const num_parameters = MiscField::decode(instr->opcode()); |
| 531 | __ PrepareCallCFunction(num_parameters, kScratchReg); |
| 532 | // Frame alignment requires using FP-relative frame addressing. |
| 533 | frame_access_state()->SetFrameAccessToFP(); |
| 534 | break; |
| 535 | } |
| 536 | case kArchPrepareTailCall: |
| 537 | AssemblePrepareTailCall(i.InputInt32(instr->InputCount() - 1)); |
| 538 | break; |
| 539 | case kArchCallCFunction: { |
| 540 | int const num_parameters = MiscField::decode(instr->opcode()); |
| 541 | if (instr->InputAt(0)->IsImmediate()) { |
| 542 | ExternalReference ref = i.InputExternalReference(0); |
| 543 | __ CallCFunction(ref, num_parameters); |
| 544 | } else { |
| 545 | Register func = i.InputRegister(0); |
| 546 | __ CallCFunction(func, num_parameters); |
| 547 | } |
| 548 | frame_access_state()->SetFrameAccessToDefault(); |
| 549 | frame_access_state()->ClearSPDelta(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 550 | break; |
| 551 | } |
| 552 | case kArchJmp: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 553 | AssembleArchJump(i.InputRpo(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 554 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 555 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 556 | case kArchLookupSwitch: |
| 557 | AssembleArchLookupSwitch(instr); |
| 558 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 559 | break; |
| 560 | case kArchTableSwitch: |
| 561 | AssembleArchTableSwitch(instr); |
| 562 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 563 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 564 | case kArchNop: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 565 | case kArchThrowTerminator: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 566 | // don't emit code for nops. |
| 567 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 568 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 569 | case kArchDeoptimize: { |
| 570 | int deopt_state_id = |
| 571 | BuildTranslation(instr, -1, 0, OutputFrameStateCombine::Ignore()); |
| 572 | Deoptimizer::BailoutType bailout_type = |
| 573 | Deoptimizer::BailoutType(MiscField::decode(instr->opcode())); |
| 574 | AssembleDeoptimizerCall(deopt_state_id, bailout_type); |
| 575 | break; |
| 576 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 577 | case kArchRet: |
| 578 | AssembleReturn(); |
| 579 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 580 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 581 | case kArchStackPointer: |
| 582 | __ mov(i.OutputRegister(), sp); |
| 583 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 584 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 585 | case kArchFramePointer: |
| 586 | __ mov(i.OutputRegister(), fp); |
| 587 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 588 | break; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 589 | case kArchParentFramePointer: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 590 | if (frame_access_state()->has_frame()) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 591 | __ ldr(i.OutputRegister(), MemOperand(fp, 0)); |
| 592 | } else { |
| 593 | __ mov(i.OutputRegister(), fp); |
| 594 | } |
| 595 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 596 | case kArchTruncateDoubleToI: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 597 | __ TruncateDoubleToI(i.OutputRegister(), i.InputFloat64Register(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 598 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 599 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 600 | case kArchStoreWithWriteBarrier: { |
| 601 | RecordWriteMode mode = |
| 602 | static_cast<RecordWriteMode>(MiscField::decode(instr->opcode())); |
| 603 | Register object = i.InputRegister(0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 604 | Register value = i.InputRegister(2); |
| 605 | Register scratch0 = i.TempRegister(0); |
| 606 | Register scratch1 = i.TempRegister(1); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 607 | OutOfLineRecordWrite* ool; |
| 608 | |
| 609 | AddressingMode addressing_mode = |
| 610 | AddressingModeField::decode(instr->opcode()); |
| 611 | if (addressing_mode == kMode_Offset_RI) { |
| 612 | int32_t index = i.InputInt32(1); |
| 613 | ool = new (zone()) OutOfLineRecordWrite(this, object, index, value, |
| 614 | scratch0, scratch1, mode); |
| 615 | __ str(value, MemOperand(object, index)); |
| 616 | } else { |
| 617 | DCHECK_EQ(kMode_Offset_RR, addressing_mode); |
| 618 | Register index(i.InputRegister(1)); |
| 619 | ool = new (zone()) OutOfLineRecordWrite(this, object, index, value, |
| 620 | scratch0, scratch1, mode); |
| 621 | __ str(value, MemOperand(object, index)); |
| 622 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 623 | __ CheckPageFlag(object, scratch0, |
| 624 | MemoryChunk::kPointersFromHereAreInterestingMask, ne, |
| 625 | ool->entry()); |
| 626 | __ bind(ool->exit()); |
| 627 | break; |
| 628 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 629 | case kArchStackSlot: { |
| 630 | FrameOffset offset = |
| 631 | frame_access_state()->GetFrameOffset(i.InputInt32(0)); |
| 632 | Register base; |
| 633 | if (offset.from_stack_pointer()) { |
| 634 | base = sp; |
| 635 | } else { |
| 636 | base = fp; |
| 637 | } |
| 638 | __ add(i.OutputRegister(0), base, Operand(offset.offset())); |
| 639 | break; |
| 640 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 641 | case kArmAdd: |
| 642 | __ add(i.OutputRegister(), i.InputRegister(0), i.InputOperand2(1), |
| 643 | i.OutputSBit()); |
| 644 | break; |
| 645 | case kArmAnd: |
| 646 | __ and_(i.OutputRegister(), i.InputRegister(0), i.InputOperand2(1), |
| 647 | i.OutputSBit()); |
| 648 | break; |
| 649 | case kArmBic: |
| 650 | __ bic(i.OutputRegister(), i.InputRegister(0), i.InputOperand2(1), |
| 651 | i.OutputSBit()); |
| 652 | break; |
| 653 | case kArmMul: |
| 654 | __ mul(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1), |
| 655 | i.OutputSBit()); |
| 656 | break; |
| 657 | case kArmMla: |
| 658 | __ mla(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1), |
| 659 | i.InputRegister(2), i.OutputSBit()); |
| 660 | break; |
| 661 | case kArmMls: { |
| 662 | CpuFeatureScope scope(masm(), MLS); |
| 663 | __ mls(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1), |
| 664 | i.InputRegister(2)); |
| 665 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 666 | break; |
| 667 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 668 | case kArmSmmul: |
| 669 | __ smmul(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1)); |
| 670 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 671 | break; |
| 672 | case kArmSmmla: |
| 673 | __ smmla(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1), |
| 674 | i.InputRegister(2)); |
| 675 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 676 | break; |
| 677 | case kArmUmull: |
| 678 | __ umull(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 679 | i.InputRegister(1), i.OutputSBit()); |
| 680 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 681 | case kArmSdiv: { |
| 682 | CpuFeatureScope scope(masm(), SUDIV); |
| 683 | __ sdiv(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1)); |
| 684 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 685 | break; |
| 686 | } |
| 687 | case kArmUdiv: { |
| 688 | CpuFeatureScope scope(masm(), SUDIV); |
| 689 | __ udiv(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1)); |
| 690 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 691 | break; |
| 692 | } |
| 693 | case kArmMov: |
| 694 | __ Move(i.OutputRegister(), i.InputOperand2(0), i.OutputSBit()); |
| 695 | break; |
| 696 | case kArmMvn: |
| 697 | __ mvn(i.OutputRegister(), i.InputOperand2(0), i.OutputSBit()); |
| 698 | break; |
| 699 | case kArmOrr: |
| 700 | __ orr(i.OutputRegister(), i.InputRegister(0), i.InputOperand2(1), |
| 701 | i.OutputSBit()); |
| 702 | break; |
| 703 | case kArmEor: |
| 704 | __ eor(i.OutputRegister(), i.InputRegister(0), i.InputOperand2(1), |
| 705 | i.OutputSBit()); |
| 706 | break; |
| 707 | case kArmSub: |
| 708 | __ sub(i.OutputRegister(), i.InputRegister(0), i.InputOperand2(1), |
| 709 | i.OutputSBit()); |
| 710 | break; |
| 711 | case kArmRsb: |
| 712 | __ rsb(i.OutputRegister(), i.InputRegister(0), i.InputOperand2(1), |
| 713 | i.OutputSBit()); |
| 714 | break; |
| 715 | case kArmBfc: { |
| 716 | CpuFeatureScope scope(masm(), ARMv7); |
| 717 | __ bfc(i.OutputRegister(), i.InputInt8(1), i.InputInt8(2)); |
| 718 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 719 | break; |
| 720 | } |
| 721 | case kArmUbfx: { |
| 722 | CpuFeatureScope scope(masm(), ARMv7); |
| 723 | __ ubfx(i.OutputRegister(), i.InputRegister(0), i.InputInt8(1), |
| 724 | i.InputInt8(2)); |
| 725 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 726 | break; |
| 727 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 728 | case kArmSbfx: { |
| 729 | CpuFeatureScope scope(masm(), ARMv7); |
| 730 | __ sbfx(i.OutputRegister(), i.InputRegister(0), i.InputInt8(1), |
| 731 | i.InputInt8(2)); |
| 732 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 733 | break; |
| 734 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 735 | case kArmSxtb: |
| 736 | __ sxtb(i.OutputRegister(), i.InputRegister(0), i.InputInt32(1)); |
| 737 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 738 | break; |
| 739 | case kArmSxth: |
| 740 | __ sxth(i.OutputRegister(), i.InputRegister(0), i.InputInt32(1)); |
| 741 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 742 | break; |
| 743 | case kArmSxtab: |
| 744 | __ sxtab(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1), |
| 745 | i.InputInt32(2)); |
| 746 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 747 | break; |
| 748 | case kArmSxtah: |
| 749 | __ sxtah(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1), |
| 750 | i.InputInt32(2)); |
| 751 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 752 | break; |
| 753 | case kArmUxtb: |
| 754 | __ uxtb(i.OutputRegister(), i.InputRegister(0), i.InputInt32(1)); |
| 755 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 756 | break; |
| 757 | case kArmUxth: |
| 758 | __ uxth(i.OutputRegister(), i.InputRegister(0), i.InputInt32(1)); |
| 759 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 760 | break; |
| 761 | case kArmUxtab: |
| 762 | __ uxtab(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1), |
| 763 | i.InputInt32(2)); |
| 764 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 765 | break; |
| 766 | case kArmUxtah: |
| 767 | __ uxtah(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1), |
| 768 | i.InputInt32(2)); |
| 769 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 770 | break; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 771 | case kArmRbit: { |
| 772 | CpuFeatureScope scope(masm(), ARMv7); |
| 773 | __ rbit(i.OutputRegister(), i.InputRegister(0)); |
| 774 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 775 | break; |
| 776 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 777 | case kArmClz: |
| 778 | __ clz(i.OutputRegister(), i.InputRegister(0)); |
| 779 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 780 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 781 | case kArmCmp: |
| 782 | __ cmp(i.InputRegister(0), i.InputOperand2(1)); |
| 783 | DCHECK_EQ(SetCC, i.OutputSBit()); |
| 784 | break; |
| 785 | case kArmCmn: |
| 786 | __ cmn(i.InputRegister(0), i.InputOperand2(1)); |
| 787 | DCHECK_EQ(SetCC, i.OutputSBit()); |
| 788 | break; |
| 789 | case kArmTst: |
| 790 | __ tst(i.InputRegister(0), i.InputOperand2(1)); |
| 791 | DCHECK_EQ(SetCC, i.OutputSBit()); |
| 792 | break; |
| 793 | case kArmTeq: |
| 794 | __ teq(i.InputRegister(0), i.InputOperand2(1)); |
| 795 | DCHECK_EQ(SetCC, i.OutputSBit()); |
| 796 | break; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 797 | case kArmAddPair: |
| 798 | // i.InputRegister(0) ... left low word. |
| 799 | // i.InputRegister(1) ... left high word. |
| 800 | // i.InputRegister(2) ... right low word. |
| 801 | // i.InputRegister(3) ... right high word. |
| 802 | __ add(i.OutputRegister(0), i.InputRegister(0), i.InputRegister(2), |
| 803 | SBit::SetCC); |
| 804 | __ adc(i.OutputRegister(1), i.InputRegister(1), |
| 805 | Operand(i.InputRegister(3))); |
| 806 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 807 | break; |
| 808 | case kArmSubPair: |
| 809 | // i.InputRegister(0) ... left low word. |
| 810 | // i.InputRegister(1) ... left high word. |
| 811 | // i.InputRegister(2) ... right low word. |
| 812 | // i.InputRegister(3) ... right high word. |
| 813 | __ sub(i.OutputRegister(0), i.InputRegister(0), i.InputRegister(2), |
| 814 | SBit::SetCC); |
| 815 | __ sbc(i.OutputRegister(1), i.InputRegister(1), |
| 816 | Operand(i.InputRegister(3))); |
| 817 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 818 | break; |
| 819 | case kArmMulPair: |
| 820 | // i.InputRegister(0) ... left low word. |
| 821 | // i.InputRegister(1) ... left high word. |
| 822 | // i.InputRegister(2) ... right low word. |
| 823 | // i.InputRegister(3) ... right high word. |
| 824 | __ umull(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 825 | i.InputRegister(2)); |
| 826 | __ mla(i.OutputRegister(1), i.InputRegister(0), i.InputRegister(3), |
| 827 | i.OutputRegister(1)); |
| 828 | __ mla(i.OutputRegister(1), i.InputRegister(2), i.InputRegister(1), |
| 829 | i.OutputRegister(1)); |
| 830 | break; |
| 831 | case kArmLslPair: |
| 832 | if (instr->InputAt(2)->IsImmediate()) { |
| 833 | __ LslPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 834 | i.InputRegister(1), i.InputInt32(2)); |
| 835 | } else { |
| 836 | __ LslPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 837 | i.InputRegister(1), kScratchReg, i.InputRegister(2)); |
| 838 | } |
| 839 | break; |
| 840 | case kArmLsrPair: |
| 841 | if (instr->InputAt(2)->IsImmediate()) { |
| 842 | __ LsrPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 843 | i.InputRegister(1), i.InputInt32(2)); |
| 844 | } else { |
| 845 | __ LsrPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 846 | i.InputRegister(1), kScratchReg, i.InputRegister(2)); |
| 847 | } |
| 848 | break; |
| 849 | case kArmAsrPair: |
| 850 | if (instr->InputAt(2)->IsImmediate()) { |
| 851 | __ AsrPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 852 | i.InputRegister(1), i.InputInt32(2)); |
| 853 | } else { |
| 854 | __ AsrPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 855 | i.InputRegister(1), kScratchReg, i.InputRegister(2)); |
| 856 | } |
| 857 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 858 | case kArmVcmpF32: |
| 859 | if (instr->InputAt(1)->IsDoubleRegister()) { |
| 860 | __ VFPCompareAndSetFlags(i.InputFloat32Register(0), |
| 861 | i.InputFloat32Register(1)); |
| 862 | } else { |
| 863 | DCHECK(instr->InputAt(1)->IsImmediate()); |
| 864 | // 0.0 is the only immediate supported by vcmp instructions. |
| 865 | DCHECK(i.InputFloat32(1) == 0.0f); |
| 866 | __ VFPCompareAndSetFlags(i.InputFloat32Register(0), i.InputFloat32(1)); |
| 867 | } |
| 868 | DCHECK_EQ(SetCC, i.OutputSBit()); |
| 869 | break; |
| 870 | case kArmVaddF32: |
| 871 | __ vadd(i.OutputFloat32Register(), i.InputFloat32Register(0), |
| 872 | i.InputFloat32Register(1)); |
| 873 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 874 | break; |
| 875 | case kArmVsubF32: |
| 876 | __ vsub(i.OutputFloat32Register(), i.InputFloat32Register(0), |
| 877 | i.InputFloat32Register(1)); |
| 878 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 879 | break; |
| 880 | case kArmVmulF32: |
| 881 | __ vmul(i.OutputFloat32Register(), i.InputFloat32Register(0), |
| 882 | i.InputFloat32Register(1)); |
| 883 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 884 | break; |
| 885 | case kArmVmlaF32: |
| 886 | __ vmla(i.OutputFloat32Register(), i.InputFloat32Register(1), |
| 887 | i.InputFloat32Register(2)); |
| 888 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 889 | break; |
| 890 | case kArmVmlsF32: |
| 891 | __ vmls(i.OutputFloat32Register(), i.InputFloat32Register(1), |
| 892 | i.InputFloat32Register(2)); |
| 893 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 894 | break; |
| 895 | case kArmVdivF32: |
| 896 | __ vdiv(i.OutputFloat32Register(), i.InputFloat32Register(0), |
| 897 | i.InputFloat32Register(1)); |
| 898 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 899 | break; |
| 900 | case kArmVsqrtF32: |
| 901 | __ vsqrt(i.OutputFloat32Register(), i.InputFloat32Register(0)); |
| 902 | break; |
| 903 | case kArmVabsF32: |
| 904 | __ vabs(i.OutputFloat32Register(), i.InputFloat32Register(0)); |
| 905 | break; |
| 906 | case kArmVnegF32: |
| 907 | __ vneg(i.OutputFloat32Register(), i.InputFloat32Register(0)); |
| 908 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 909 | case kArmVcmpF64: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 910 | if (instr->InputAt(1)->IsDoubleRegister()) { |
| 911 | __ VFPCompareAndSetFlags(i.InputFloat64Register(0), |
| 912 | i.InputFloat64Register(1)); |
| 913 | } else { |
| 914 | DCHECK(instr->InputAt(1)->IsImmediate()); |
| 915 | // 0.0 is the only immediate supported by vcmp instructions. |
| 916 | DCHECK(i.InputDouble(1) == 0.0); |
| 917 | __ VFPCompareAndSetFlags(i.InputFloat64Register(0), i.InputDouble(1)); |
| 918 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 919 | DCHECK_EQ(SetCC, i.OutputSBit()); |
| 920 | break; |
| 921 | case kArmVaddF64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 922 | __ vadd(i.OutputFloat64Register(), i.InputFloat64Register(0), |
| 923 | i.InputFloat64Register(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 924 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 925 | break; |
| 926 | case kArmVsubF64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 927 | __ vsub(i.OutputFloat64Register(), i.InputFloat64Register(0), |
| 928 | i.InputFloat64Register(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 929 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 930 | break; |
| 931 | case kArmVmulF64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 932 | __ vmul(i.OutputFloat64Register(), i.InputFloat64Register(0), |
| 933 | i.InputFloat64Register(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 934 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 935 | break; |
| 936 | case kArmVmlaF64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 937 | __ vmla(i.OutputFloat64Register(), i.InputFloat64Register(1), |
| 938 | i.InputFloat64Register(2)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 939 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 940 | break; |
| 941 | case kArmVmlsF64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 942 | __ vmls(i.OutputFloat64Register(), i.InputFloat64Register(1), |
| 943 | i.InputFloat64Register(2)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 944 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 945 | break; |
| 946 | case kArmVdivF64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 947 | __ vdiv(i.OutputFloat64Register(), i.InputFloat64Register(0), |
| 948 | i.InputFloat64Register(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 949 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 950 | break; |
| 951 | case kArmVmodF64: { |
| 952 | // TODO(bmeurer): We should really get rid of this special instruction, |
| 953 | // and generate a CallAddress instruction instead. |
| 954 | FrameScope scope(masm(), StackFrame::MANUAL); |
| 955 | __ PrepareCallCFunction(0, 2, kScratchReg); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 956 | __ MovToFloatParameters(i.InputFloat64Register(0), |
| 957 | i.InputFloat64Register(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 958 | __ CallCFunction(ExternalReference::mod_two_doubles_operation(isolate()), |
| 959 | 0, 2); |
| 960 | // Move the result in the double result register. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 961 | __ MovFromFloatResult(i.OutputFloat64Register()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 962 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 963 | break; |
| 964 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 965 | case kArmVsqrtF64: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 966 | __ vsqrt(i.OutputFloat64Register(), i.InputFloat64Register(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 967 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 968 | case kArmVabsF64: |
| 969 | __ vabs(i.OutputFloat64Register(), i.InputFloat64Register(0)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 970 | break; |
| 971 | case kArmVnegF64: |
| 972 | __ vneg(i.OutputFloat64Register(), i.InputFloat64Register(0)); |
| 973 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 974 | case kArmVrintmF32: |
| 975 | __ vrintm(i.OutputFloat32Register(), i.InputFloat32Register(0)); |
| 976 | break; |
| 977 | case kArmVrintmF64: |
| 978 | __ vrintm(i.OutputFloat64Register(), i.InputFloat64Register(0)); |
| 979 | break; |
| 980 | case kArmVrintpF32: |
| 981 | __ vrintp(i.OutputFloat32Register(), i.InputFloat32Register(0)); |
| 982 | break; |
| 983 | case kArmVrintpF64: |
| 984 | __ vrintp(i.OutputFloat64Register(), i.InputFloat64Register(0)); |
| 985 | break; |
| 986 | case kArmVrintzF32: |
| 987 | __ vrintz(i.OutputFloat32Register(), i.InputFloat32Register(0)); |
| 988 | break; |
| 989 | case kArmVrintzF64: |
| 990 | __ vrintz(i.OutputFloat64Register(), i.InputFloat64Register(0)); |
| 991 | break; |
| 992 | case kArmVrintaF64: |
| 993 | __ vrinta(i.OutputFloat64Register(), i.InputFloat64Register(0)); |
| 994 | break; |
| 995 | case kArmVrintnF32: |
| 996 | __ vrintn(i.OutputFloat32Register(), i.InputFloat32Register(0)); |
| 997 | break; |
| 998 | case kArmVrintnF64: |
| 999 | __ vrintn(i.OutputFloat64Register(), i.InputFloat64Register(0)); |
| 1000 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1001 | case kArmVcvtF32F64: { |
| 1002 | __ vcvt_f32_f64(i.OutputFloat32Register(), i.InputFloat64Register(0)); |
| 1003 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1004 | break; |
| 1005 | } |
| 1006 | case kArmVcvtF64F32: { |
| 1007 | __ vcvt_f64_f32(i.OutputFloat64Register(), i.InputFloat32Register(0)); |
| 1008 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1009 | break; |
| 1010 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1011 | case kArmVcvtF32S32: { |
| 1012 | SwVfpRegister scratch = kScratchDoubleReg.low(); |
| 1013 | __ vmov(scratch, i.InputRegister(0)); |
| 1014 | __ vcvt_f32_s32(i.OutputFloat32Register(), scratch); |
| 1015 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1016 | break; |
| 1017 | } |
| 1018 | case kArmVcvtF32U32: { |
| 1019 | SwVfpRegister scratch = kScratchDoubleReg.low(); |
| 1020 | __ vmov(scratch, i.InputRegister(0)); |
| 1021 | __ vcvt_f32_u32(i.OutputFloat32Register(), scratch); |
| 1022 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1023 | break; |
| 1024 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1025 | case kArmVcvtF64S32: { |
| 1026 | SwVfpRegister scratch = kScratchDoubleReg.low(); |
| 1027 | __ vmov(scratch, i.InputRegister(0)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1028 | __ vcvt_f64_s32(i.OutputFloat64Register(), scratch); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1029 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1030 | break; |
| 1031 | } |
| 1032 | case kArmVcvtF64U32: { |
| 1033 | SwVfpRegister scratch = kScratchDoubleReg.low(); |
| 1034 | __ vmov(scratch, i.InputRegister(0)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1035 | __ vcvt_f64_u32(i.OutputFloat64Register(), scratch); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1036 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1037 | break; |
| 1038 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1039 | case kArmVcvtS32F32: { |
| 1040 | SwVfpRegister scratch = kScratchDoubleReg.low(); |
| 1041 | __ vcvt_s32_f32(scratch, i.InputFloat32Register(0)); |
| 1042 | __ vmov(i.OutputRegister(), scratch); |
| 1043 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1044 | break; |
| 1045 | } |
| 1046 | case kArmVcvtU32F32: { |
| 1047 | SwVfpRegister scratch = kScratchDoubleReg.low(); |
| 1048 | __ vcvt_u32_f32(scratch, i.InputFloat32Register(0)); |
| 1049 | __ vmov(i.OutputRegister(), scratch); |
| 1050 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1051 | break; |
| 1052 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1053 | case kArmVcvtS32F64: { |
| 1054 | SwVfpRegister scratch = kScratchDoubleReg.low(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1055 | __ vcvt_s32_f64(scratch, i.InputFloat64Register(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1056 | __ vmov(i.OutputRegister(), scratch); |
| 1057 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1058 | break; |
| 1059 | } |
| 1060 | case kArmVcvtU32F64: { |
| 1061 | SwVfpRegister scratch = kScratchDoubleReg.low(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1062 | __ vcvt_u32_f64(scratch, i.InputFloat64Register(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1063 | __ vmov(i.OutputRegister(), scratch); |
| 1064 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1065 | break; |
| 1066 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1067 | case kArmVmovLowU32F64: |
| 1068 | __ VmovLow(i.OutputRegister(), i.InputFloat64Register(0)); |
| 1069 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1070 | break; |
| 1071 | case kArmVmovLowF64U32: |
| 1072 | __ VmovLow(i.OutputFloat64Register(), i.InputRegister(1)); |
| 1073 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1074 | break; |
| 1075 | case kArmVmovHighU32F64: |
| 1076 | __ VmovHigh(i.OutputRegister(), i.InputFloat64Register(0)); |
| 1077 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1078 | break; |
| 1079 | case kArmVmovHighF64U32: |
| 1080 | __ VmovHigh(i.OutputFloat64Register(), i.InputRegister(1)); |
| 1081 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1082 | break; |
| 1083 | case kArmVmovF64U32U32: |
| 1084 | __ vmov(i.OutputFloat64Register(), i.InputRegister(0), |
| 1085 | i.InputRegister(1)); |
| 1086 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1087 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1088 | case kArmLdrb: |
| 1089 | __ ldrb(i.OutputRegister(), i.InputOffset()); |
| 1090 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1091 | break; |
| 1092 | case kArmLdrsb: |
| 1093 | __ ldrsb(i.OutputRegister(), i.InputOffset()); |
| 1094 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1095 | break; |
| 1096 | case kArmStrb: { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1097 | size_t index = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1098 | MemOperand operand = i.InputOffset(&index); |
| 1099 | __ strb(i.InputRegister(index), operand); |
| 1100 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1101 | break; |
| 1102 | } |
| 1103 | case kArmLdrh: |
| 1104 | __ ldrh(i.OutputRegister(), i.InputOffset()); |
| 1105 | break; |
| 1106 | case kArmLdrsh: |
| 1107 | __ ldrsh(i.OutputRegister(), i.InputOffset()); |
| 1108 | break; |
| 1109 | case kArmStrh: { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1110 | size_t index = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1111 | MemOperand operand = i.InputOffset(&index); |
| 1112 | __ strh(i.InputRegister(index), operand); |
| 1113 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1114 | break; |
| 1115 | } |
| 1116 | case kArmLdr: |
| 1117 | __ ldr(i.OutputRegister(), i.InputOffset()); |
| 1118 | break; |
| 1119 | case kArmStr: { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1120 | size_t index = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1121 | MemOperand operand = i.InputOffset(&index); |
| 1122 | __ str(i.InputRegister(index), operand); |
| 1123 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1124 | break; |
| 1125 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1126 | case kArmVldrF32: { |
| 1127 | __ vldr(i.OutputFloat32Register(), i.InputOffset()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1128 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1129 | break; |
| 1130 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1131 | case kArmVstrF32: { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1132 | size_t index = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1133 | MemOperand operand = i.InputOffset(&index); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1134 | __ vstr(i.InputFloat32Register(index), operand); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1135 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1136 | break; |
| 1137 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1138 | case kArmVldrF64: |
| 1139 | __ vldr(i.OutputFloat64Register(), i.InputOffset()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1140 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1141 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1142 | case kArmVstrF64: { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1143 | size_t index = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1144 | MemOperand operand = i.InputOffset(&index); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1145 | __ vstr(i.InputFloat64Register(index), operand); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1146 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1147 | break; |
| 1148 | } |
| 1149 | case kArmPush: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1150 | if (instr->InputAt(0)->IsDoubleRegister()) { |
| 1151 | __ vpush(i.InputDoubleRegister(0)); |
| 1152 | frame_access_state()->IncreaseSPDelta(kDoubleSize / kPointerSize); |
| 1153 | } else { |
| 1154 | __ push(i.InputRegister(0)); |
| 1155 | frame_access_state()->IncreaseSPDelta(1); |
| 1156 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1157 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1158 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1159 | case kArmPoke: { |
| 1160 | int const slot = MiscField::decode(instr->opcode()); |
| 1161 | __ str(i.InputRegister(0), MemOperand(sp, slot * kPointerSize)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1162 | DCHECK_EQ(LeaveCC, i.OutputSBit()); |
| 1163 | break; |
| 1164 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1165 | case kCheckedLoadInt8: |
| 1166 | ASSEMBLE_CHECKED_LOAD_INTEGER(ldrsb); |
| 1167 | break; |
| 1168 | case kCheckedLoadUint8: |
| 1169 | ASSEMBLE_CHECKED_LOAD_INTEGER(ldrb); |
| 1170 | break; |
| 1171 | case kCheckedLoadInt16: |
| 1172 | ASSEMBLE_CHECKED_LOAD_INTEGER(ldrsh); |
| 1173 | break; |
| 1174 | case kCheckedLoadUint16: |
| 1175 | ASSEMBLE_CHECKED_LOAD_INTEGER(ldrh); |
| 1176 | break; |
| 1177 | case kCheckedLoadWord32: |
| 1178 | ASSEMBLE_CHECKED_LOAD_INTEGER(ldr); |
| 1179 | break; |
| 1180 | case kCheckedLoadFloat32: |
| 1181 | ASSEMBLE_CHECKED_LOAD_FLOAT(32); |
| 1182 | break; |
| 1183 | case kCheckedLoadFloat64: |
| 1184 | ASSEMBLE_CHECKED_LOAD_FLOAT(64); |
| 1185 | break; |
| 1186 | case kCheckedStoreWord8: |
| 1187 | ASSEMBLE_CHECKED_STORE_INTEGER(strb); |
| 1188 | break; |
| 1189 | case kCheckedStoreWord16: |
| 1190 | ASSEMBLE_CHECKED_STORE_INTEGER(strh); |
| 1191 | break; |
| 1192 | case kCheckedStoreWord32: |
| 1193 | ASSEMBLE_CHECKED_STORE_INTEGER(str); |
| 1194 | break; |
| 1195 | case kCheckedStoreFloat32: |
| 1196 | ASSEMBLE_CHECKED_STORE_FLOAT(32); |
| 1197 | break; |
| 1198 | case kCheckedStoreFloat64: |
| 1199 | ASSEMBLE_CHECKED_STORE_FLOAT(64); |
| 1200 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1201 | case kCheckedLoadWord64: |
| 1202 | case kCheckedStoreWord64: |
| 1203 | UNREACHABLE(); // currently unsupported checked int64 load/store. |
| 1204 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1205 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1206 | } // NOLINT(readability/fn_size) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1207 | |
| 1208 | |
| 1209 | // Assembles branches after an instruction. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1210 | void CodeGenerator::AssembleArchBranch(Instruction* instr, BranchInfo* branch) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1211 | ArmOperandConverter i(this, instr); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1212 | Label* tlabel = branch->true_label; |
| 1213 | Label* flabel = branch->false_label; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1214 | Condition cc = FlagsConditionToCondition(branch->condition); |
| 1215 | __ b(cc, tlabel); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1216 | if (!branch->fallthru) __ b(flabel); // no fallthru to flabel. |
| 1217 | } |
| 1218 | |
| 1219 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1220 | void CodeGenerator::AssembleArchJump(RpoNumber target) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1221 | if (!IsNextInAssemblyOrder(target)) __ b(GetLabel(target)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1222 | } |
| 1223 | |
| 1224 | |
| 1225 | // Assembles boolean materializations after an instruction. |
| 1226 | void CodeGenerator::AssembleArchBoolean(Instruction* instr, |
| 1227 | FlagsCondition condition) { |
| 1228 | ArmOperandConverter i(this, instr); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1229 | |
| 1230 | // Materialize a full 32-bit 1 or 0 value. The result register is always the |
| 1231 | // last output of the instruction. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1232 | DCHECK_NE(0u, instr->OutputCount()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1233 | Register reg = i.OutputRegister(instr->OutputCount() - 1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1234 | Condition cc = FlagsConditionToCondition(condition); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1235 | __ mov(reg, Operand(0)); |
| 1236 | __ mov(reg, Operand(1), LeaveCC, cc); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1237 | } |
| 1238 | |
| 1239 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1240 | void CodeGenerator::AssembleArchLookupSwitch(Instruction* instr) { |
| 1241 | ArmOperandConverter i(this, instr); |
| 1242 | Register input = i.InputRegister(0); |
| 1243 | for (size_t index = 2; index < instr->InputCount(); index += 2) { |
| 1244 | __ cmp(input, Operand(i.InputInt32(index + 0))); |
| 1245 | __ b(eq, GetLabel(i.InputRpo(index + 1))); |
| 1246 | } |
| 1247 | AssembleArchJump(i.InputRpo(1)); |
| 1248 | } |
| 1249 | |
| 1250 | |
| 1251 | void CodeGenerator::AssembleArchTableSwitch(Instruction* instr) { |
| 1252 | ArmOperandConverter i(this, instr); |
| 1253 | Register input = i.InputRegister(0); |
| 1254 | size_t const case_count = instr->InputCount() - 2; |
| 1255 | // Ensure to emit the constant pool first if necessary. |
| 1256 | __ CheckConstPool(true, true); |
| 1257 | __ cmp(input, Operand(case_count)); |
| 1258 | __ BlockConstPoolFor(case_count + 2); |
| 1259 | __ add(pc, pc, Operand(input, LSL, 2), LeaveCC, lo); |
| 1260 | __ b(GetLabel(i.InputRpo(1))); |
| 1261 | for (size_t index = 0; index < case_count; ++index) { |
| 1262 | __ b(GetLabel(i.InputRpo(index + 2))); |
| 1263 | } |
| 1264 | } |
| 1265 | |
| 1266 | |
| 1267 | void CodeGenerator::AssembleDeoptimizerCall( |
| 1268 | int deoptimization_id, Deoptimizer::BailoutType bailout_type) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1269 | Address deopt_entry = Deoptimizer::GetDeoptimizationEntry( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1270 | isolate(), deoptimization_id, bailout_type); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1271 | // TODO(turbofan): We should be able to generate better code by sharing the |
| 1272 | // actual final call site and just bl'ing to it here, similar to what we do |
| 1273 | // in the lithium backend. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1274 | __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1275 | __ CheckConstPool(false, false); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1276 | } |
| 1277 | |
| 1278 | |
| 1279 | void CodeGenerator::AssemblePrologue() { |
| 1280 | CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1281 | if (frame_access_state()->has_frame()) { |
| 1282 | if (descriptor->IsCFunctionCall()) { |
| 1283 | if (FLAG_enable_embedded_constant_pool) { |
| 1284 | __ Push(lr, fp, pp); |
| 1285 | // Adjust FP to point to saved FP. |
| 1286 | __ sub(fp, sp, Operand(StandardFrameConstants::kConstantPoolOffset)); |
| 1287 | } else { |
| 1288 | __ Push(lr, fp); |
| 1289 | __ mov(fp, sp); |
| 1290 | } |
| 1291 | } else if (descriptor->IsJSFunctionCall()) { |
| 1292 | __ Prologue(this->info()->GeneratePreagedPrologue()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1293 | } else { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1294 | __ StubPrologue(info()->GetOutputStackFrameType()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1295 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1296 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1297 | |
| 1298 | int stack_shrink_slots = frame()->GetSpillSlotCount(); |
| 1299 | if (info()->is_osr()) { |
| 1300 | // TurboFan OSR-compiled functions cannot be entered directly. |
| 1301 | __ Abort(kShouldNotDirectlyEnterOsrFunction); |
| 1302 | |
| 1303 | // Unoptimized code jumps directly to this entrypoint while the unoptimized |
| 1304 | // frame is still on the stack. Optimized code uses OSR values directly from |
| 1305 | // the unoptimized frame. Thus, all that needs to be done is to allocate the |
| 1306 | // remaining stack slots. |
| 1307 | if (FLAG_code_comments) __ RecordComment("-- OSR entrypoint --"); |
| 1308 | osr_pc_offset_ = __ pc_offset(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1309 | stack_shrink_slots -= OsrHelper(info()).UnoptimizedFrameSlots(); |
| 1310 | } |
| 1311 | |
| 1312 | const RegList saves_fp = descriptor->CalleeSavedFPRegisters(); |
| 1313 | if (saves_fp != 0) { |
| 1314 | stack_shrink_slots += frame()->AlignSavedCalleeRegisterSlots(); |
| 1315 | } |
| 1316 | if (stack_shrink_slots > 0) { |
| 1317 | __ sub(sp, sp, Operand(stack_shrink_slots * kPointerSize)); |
| 1318 | } |
| 1319 | |
| 1320 | if (saves_fp != 0) { |
| 1321 | // Save callee-saved FP registers. |
| 1322 | STATIC_ASSERT(DwVfpRegister::kMaxNumRegisters == 32); |
| 1323 | uint32_t last = base::bits::CountLeadingZeros32(saves_fp) - 1; |
| 1324 | uint32_t first = base::bits::CountTrailingZeros32(saves_fp); |
| 1325 | DCHECK_EQ((last - first + 1), base::bits::CountPopulation32(saves_fp)); |
| 1326 | __ vstm(db_w, sp, DwVfpRegister::from_code(first), |
| 1327 | DwVfpRegister::from_code(last)); |
| 1328 | frame()->AllocateSavedCalleeRegisterSlots((last - first + 1) * |
| 1329 | (kDoubleSize / kPointerSize)); |
| 1330 | } |
| 1331 | const RegList saves = FLAG_enable_embedded_constant_pool |
| 1332 | ? (descriptor->CalleeSavedRegisters() & ~pp.bit()) |
| 1333 | : descriptor->CalleeSavedRegisters(); |
| 1334 | if (saves != 0) { |
| 1335 | // Save callee-saved registers. |
| 1336 | __ stm(db_w, sp, saves); |
| 1337 | frame()->AllocateSavedCalleeRegisterSlots( |
| 1338 | base::bits::CountPopulation32(saves)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1339 | } |
| 1340 | } |
| 1341 | |
| 1342 | |
| 1343 | void CodeGenerator::AssembleReturn() { |
| 1344 | CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1345 | int pop_count = static_cast<int>(descriptor->StackParameterCount()); |
| 1346 | |
| 1347 | // Restore registers. |
| 1348 | const RegList saves = FLAG_enable_embedded_constant_pool |
| 1349 | ? (descriptor->CalleeSavedRegisters() & ~pp.bit()) |
| 1350 | : descriptor->CalleeSavedRegisters(); |
| 1351 | if (saves != 0) { |
| 1352 | __ ldm(ia_w, sp, saves); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1353 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1354 | |
| 1355 | // Restore FP registers. |
| 1356 | const RegList saves_fp = descriptor->CalleeSavedFPRegisters(); |
| 1357 | if (saves_fp != 0) { |
| 1358 | STATIC_ASSERT(DwVfpRegister::kMaxNumRegisters == 32); |
| 1359 | uint32_t last = base::bits::CountLeadingZeros32(saves_fp) - 1; |
| 1360 | uint32_t first = base::bits::CountTrailingZeros32(saves_fp); |
| 1361 | __ vldm(ia_w, sp, DwVfpRegister::from_code(first), |
| 1362 | DwVfpRegister::from_code(last)); |
| 1363 | } |
| 1364 | |
| 1365 | if (descriptor->IsCFunctionCall()) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1366 | AssembleDeconstructFrame(); |
| 1367 | } else if (frame_access_state()->has_frame()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1368 | // Canonicalize JSFunction return sites for now. |
| 1369 | if (return_label_.is_bound()) { |
| 1370 | __ b(&return_label_); |
| 1371 | return; |
| 1372 | } else { |
| 1373 | __ bind(&return_label_); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1374 | AssembleDeconstructFrame(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1375 | } |
| 1376 | } |
| 1377 | __ Ret(pop_count); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1378 | } |
| 1379 | |
| 1380 | |
| 1381 | void CodeGenerator::AssembleMove(InstructionOperand* source, |
| 1382 | InstructionOperand* destination) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1383 | ArmOperandConverter g(this, nullptr); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1384 | // Dispatch on the source and destination operand kinds. Not all |
| 1385 | // combinations are possible. |
| 1386 | if (source->IsRegister()) { |
| 1387 | DCHECK(destination->IsRegister() || destination->IsStackSlot()); |
| 1388 | Register src = g.ToRegister(source); |
| 1389 | if (destination->IsRegister()) { |
| 1390 | __ mov(g.ToRegister(destination), src); |
| 1391 | } else { |
| 1392 | __ str(src, g.ToMemOperand(destination)); |
| 1393 | } |
| 1394 | } else if (source->IsStackSlot()) { |
| 1395 | DCHECK(destination->IsRegister() || destination->IsStackSlot()); |
| 1396 | MemOperand src = g.ToMemOperand(source); |
| 1397 | if (destination->IsRegister()) { |
| 1398 | __ ldr(g.ToRegister(destination), src); |
| 1399 | } else { |
| 1400 | Register temp = kScratchReg; |
| 1401 | __ ldr(temp, src); |
| 1402 | __ str(temp, g.ToMemOperand(destination)); |
| 1403 | } |
| 1404 | } else if (source->IsConstant()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1405 | Constant src = g.ToConstant(source); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1406 | if (destination->IsRegister() || destination->IsStackSlot()) { |
| 1407 | Register dst = |
| 1408 | destination->IsRegister() ? g.ToRegister(destination) : kScratchReg; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1409 | switch (src.type()) { |
| 1410 | case Constant::kInt32: |
| 1411 | __ mov(dst, Operand(src.ToInt32())); |
| 1412 | break; |
| 1413 | case Constant::kInt64: |
| 1414 | UNREACHABLE(); |
| 1415 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1416 | case Constant::kFloat32: |
| 1417 | __ Move(dst, |
| 1418 | isolate()->factory()->NewNumber(src.ToFloat32(), TENURED)); |
| 1419 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1420 | case Constant::kFloat64: |
| 1421 | __ Move(dst, |
| 1422 | isolate()->factory()->NewNumber(src.ToFloat64(), TENURED)); |
| 1423 | break; |
| 1424 | case Constant::kExternalReference: |
| 1425 | __ mov(dst, Operand(src.ToExternalReference())); |
| 1426 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1427 | case Constant::kHeapObject: { |
| 1428 | Handle<HeapObject> src_object = src.ToHeapObject(); |
| 1429 | Heap::RootListIndex index; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame^] | 1430 | int slot; |
| 1431 | if (IsMaterializableFromFrame(src_object, &slot)) { |
| 1432 | __ ldr(dst, g.SlotToMemOperand(slot)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1433 | } else if (IsMaterializableFromRoot(src_object, &index)) { |
| 1434 | __ LoadRoot(dst, index); |
| 1435 | } else { |
| 1436 | __ Move(dst, src_object); |
| 1437 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1438 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1439 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1440 | case Constant::kRpoNumber: |
| 1441 | UNREACHABLE(); // TODO(dcarney): loading RPO constants on arm. |
| 1442 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1443 | } |
| 1444 | if (destination->IsStackSlot()) __ str(dst, g.ToMemOperand(destination)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1445 | } else if (src.type() == Constant::kFloat32) { |
| 1446 | if (destination->IsDoubleStackSlot()) { |
| 1447 | MemOperand dst = g.ToMemOperand(destination); |
| 1448 | __ mov(ip, Operand(bit_cast<int32_t>(src.ToFloat32()))); |
| 1449 | __ str(ip, dst); |
| 1450 | } else { |
| 1451 | SwVfpRegister dst = g.ToFloat32Register(destination); |
| 1452 | __ vmov(dst, src.ToFloat32()); |
| 1453 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1454 | } else { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1455 | DCHECK_EQ(Constant::kFloat64, src.type()); |
| 1456 | DwVfpRegister dst = destination->IsDoubleRegister() |
| 1457 | ? g.ToFloat64Register(destination) |
| 1458 | : kScratchDoubleReg; |
| 1459 | __ vmov(dst, src.ToFloat64(), kScratchReg); |
| 1460 | if (destination->IsDoubleStackSlot()) { |
| 1461 | __ vstr(dst, g.ToMemOperand(destination)); |
| 1462 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1463 | } |
| 1464 | } else if (source->IsDoubleRegister()) { |
| 1465 | DwVfpRegister src = g.ToDoubleRegister(source); |
| 1466 | if (destination->IsDoubleRegister()) { |
| 1467 | DwVfpRegister dst = g.ToDoubleRegister(destination); |
| 1468 | __ Move(dst, src); |
| 1469 | } else { |
| 1470 | DCHECK(destination->IsDoubleStackSlot()); |
| 1471 | __ vstr(src, g.ToMemOperand(destination)); |
| 1472 | } |
| 1473 | } else if (source->IsDoubleStackSlot()) { |
| 1474 | DCHECK(destination->IsDoubleRegister() || destination->IsDoubleStackSlot()); |
| 1475 | MemOperand src = g.ToMemOperand(source); |
| 1476 | if (destination->IsDoubleRegister()) { |
| 1477 | __ vldr(g.ToDoubleRegister(destination), src); |
| 1478 | } else { |
| 1479 | DwVfpRegister temp = kScratchDoubleReg; |
| 1480 | __ vldr(temp, src); |
| 1481 | __ vstr(temp, g.ToMemOperand(destination)); |
| 1482 | } |
| 1483 | } else { |
| 1484 | UNREACHABLE(); |
| 1485 | } |
| 1486 | } |
| 1487 | |
| 1488 | |
| 1489 | void CodeGenerator::AssembleSwap(InstructionOperand* source, |
| 1490 | InstructionOperand* destination) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1491 | ArmOperandConverter g(this, nullptr); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1492 | // Dispatch on the source and destination operand kinds. Not all |
| 1493 | // combinations are possible. |
| 1494 | if (source->IsRegister()) { |
| 1495 | // Register-register. |
| 1496 | Register temp = kScratchReg; |
| 1497 | Register src = g.ToRegister(source); |
| 1498 | if (destination->IsRegister()) { |
| 1499 | Register dst = g.ToRegister(destination); |
| 1500 | __ Move(temp, src); |
| 1501 | __ Move(src, dst); |
| 1502 | __ Move(dst, temp); |
| 1503 | } else { |
| 1504 | DCHECK(destination->IsStackSlot()); |
| 1505 | MemOperand dst = g.ToMemOperand(destination); |
| 1506 | __ mov(temp, src); |
| 1507 | __ ldr(src, dst); |
| 1508 | __ str(temp, dst); |
| 1509 | } |
| 1510 | } else if (source->IsStackSlot()) { |
| 1511 | DCHECK(destination->IsStackSlot()); |
| 1512 | Register temp_0 = kScratchReg; |
| 1513 | SwVfpRegister temp_1 = kScratchDoubleReg.low(); |
| 1514 | MemOperand src = g.ToMemOperand(source); |
| 1515 | MemOperand dst = g.ToMemOperand(destination); |
| 1516 | __ ldr(temp_0, src); |
| 1517 | __ vldr(temp_1, dst); |
| 1518 | __ str(temp_0, dst); |
| 1519 | __ vstr(temp_1, src); |
| 1520 | } else if (source->IsDoubleRegister()) { |
| 1521 | DwVfpRegister temp = kScratchDoubleReg; |
| 1522 | DwVfpRegister src = g.ToDoubleRegister(source); |
| 1523 | if (destination->IsDoubleRegister()) { |
| 1524 | DwVfpRegister dst = g.ToDoubleRegister(destination); |
| 1525 | __ Move(temp, src); |
| 1526 | __ Move(src, dst); |
| 1527 | __ Move(dst, temp); |
| 1528 | } else { |
| 1529 | DCHECK(destination->IsDoubleStackSlot()); |
| 1530 | MemOperand dst = g.ToMemOperand(destination); |
| 1531 | __ Move(temp, src); |
| 1532 | __ vldr(src, dst); |
| 1533 | __ vstr(temp, dst); |
| 1534 | } |
| 1535 | } else if (source->IsDoubleStackSlot()) { |
| 1536 | DCHECK(destination->IsDoubleStackSlot()); |
| 1537 | Register temp_0 = kScratchReg; |
| 1538 | DwVfpRegister temp_1 = kScratchDoubleReg; |
| 1539 | MemOperand src0 = g.ToMemOperand(source); |
| 1540 | MemOperand src1(src0.rn(), src0.offset() + kPointerSize); |
| 1541 | MemOperand dst0 = g.ToMemOperand(destination); |
| 1542 | MemOperand dst1(dst0.rn(), dst0.offset() + kPointerSize); |
| 1543 | __ vldr(temp_1, dst0); // Save destination in temp_1. |
| 1544 | __ ldr(temp_0, src0); // Then use temp_0 to copy source to destination. |
| 1545 | __ str(temp_0, dst0); |
| 1546 | __ ldr(temp_0, src1); |
| 1547 | __ str(temp_0, dst1); |
| 1548 | __ vstr(temp_1, src0); |
| 1549 | } else { |
| 1550 | // No other combinations are possible. |
| 1551 | UNREACHABLE(); |
| 1552 | } |
| 1553 | } |
| 1554 | |
| 1555 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1556 | void CodeGenerator::AssembleJumpTable(Label** targets, size_t target_count) { |
| 1557 | // On 32-bit ARM we emit the jump tables inline. |
| 1558 | UNREACHABLE(); |
| 1559 | } |
| 1560 | |
| 1561 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1562 | void CodeGenerator::AddNopForSmiCodeInlining() { |
| 1563 | // On 32-bit ARM we do not insert nops for inlined Smi code. |
| 1564 | } |
| 1565 | |
| 1566 | |
| 1567 | void CodeGenerator::EnsureSpaceForLazyDeopt() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1568 | if (!info()->ShouldEnsureSpaceForLazyDeopt()) { |
| 1569 | return; |
| 1570 | } |
| 1571 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1572 | int space_needed = Deoptimizer::patch_size(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1573 | // Ensure that we have enough space after the previous lazy-bailout |
| 1574 | // instruction for patching the code here. |
| 1575 | int current_pc = masm()->pc_offset(); |
| 1576 | if (current_pc < last_lazy_deopt_pc_ + space_needed) { |
| 1577 | // Block literal pool emission for duration of padding. |
| 1578 | v8::internal::Assembler::BlockConstPoolScope block_const_pool(masm()); |
| 1579 | int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; |
| 1580 | DCHECK_EQ(0, padding_size % v8::internal::Assembler::kInstrSize); |
| 1581 | while (padding_size > 0) { |
| 1582 | __ nop(); |
| 1583 | padding_size -= v8::internal::Assembler::kInstrSize; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1584 | } |
| 1585 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1586 | } |
| 1587 | |
| 1588 | #undef __ |
| 1589 | |
| 1590 | } // namespace compiler |
| 1591 | } // namespace internal |
| 1592 | } // namespace v8 |