Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5 | #include "src/ast/scopes.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6 | #include "src/compiler/code-generator.h" |
| 7 | #include "src/compiler/code-generator-impl.h" |
| 8 | #include "src/compiler/gap-resolver.h" |
| 9 | #include "src/compiler/node-matchers.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 10 | #include "src/compiler/osr.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 11 | #include "src/mips/macro-assembler-mips.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 12 | |
| 13 | namespace v8 { |
| 14 | namespace internal { |
| 15 | namespace compiler { |
| 16 | |
| 17 | #define __ masm()-> |
| 18 | |
| 19 | |
| 20 | // TODO(plind): Possibly avoid using these lithium names. |
| 21 | #define kScratchReg kLithiumScratchReg |
| 22 | #define kCompareReg kLithiumScratchReg2 |
| 23 | #define kScratchReg2 kLithiumScratchReg2 |
| 24 | #define kScratchDoubleReg kLithiumScratchDouble |
| 25 | |
| 26 | |
| 27 | // TODO(plind): consider renaming these macros. |
| 28 | #define TRACE_MSG(msg) \ |
| 29 | PrintF("code_gen: \'%s\' in function %s at line %d\n", msg, __FUNCTION__, \ |
| 30 | __LINE__) |
| 31 | |
| 32 | #define TRACE_UNIMPL() \ |
| 33 | PrintF("UNIMPLEMENTED code_generator_mips: %s at line %d\n", __FUNCTION__, \ |
| 34 | __LINE__) |
| 35 | |
| 36 | |
| 37 | // Adds Mips-specific methods to convert InstructionOperands. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 38 | class MipsOperandConverter final : public InstructionOperandConverter { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 39 | public: |
| 40 | MipsOperandConverter(CodeGenerator* gen, Instruction* instr) |
| 41 | : InstructionOperandConverter(gen, instr) {} |
| 42 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 43 | FloatRegister OutputSingleRegister(size_t index = 0) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 44 | return ToSingleRegister(instr_->OutputAt(index)); |
| 45 | } |
| 46 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 47 | FloatRegister InputSingleRegister(size_t index) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 48 | return ToSingleRegister(instr_->InputAt(index)); |
| 49 | } |
| 50 | |
| 51 | FloatRegister ToSingleRegister(InstructionOperand* op) { |
| 52 | // Single (Float) and Double register namespace is same on MIPS, |
| 53 | // both are typedefs of FPURegister. |
| 54 | return ToDoubleRegister(op); |
| 55 | } |
| 56 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 57 | DoubleRegister InputOrZeroDoubleRegister(size_t index) { |
| 58 | if (instr_->InputAt(index)->IsImmediate()) return kDoubleRegZero; |
| 59 | |
| 60 | return InputDoubleRegister(index); |
| 61 | } |
| 62 | |
| 63 | DoubleRegister InputOrZeroSingleRegister(size_t index) { |
| 64 | if (instr_->InputAt(index)->IsImmediate()) return kDoubleRegZero; |
| 65 | |
| 66 | return InputSingleRegister(index); |
| 67 | } |
| 68 | |
| 69 | Operand InputImmediate(size_t index) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 70 | Constant constant = ToConstant(instr_->InputAt(index)); |
| 71 | switch (constant.type()) { |
| 72 | case Constant::kInt32: |
| 73 | return Operand(constant.ToInt32()); |
| 74 | case Constant::kFloat32: |
| 75 | return Operand( |
| 76 | isolate()->factory()->NewNumber(constant.ToFloat32(), TENURED)); |
| 77 | case Constant::kFloat64: |
| 78 | return Operand( |
| 79 | isolate()->factory()->NewNumber(constant.ToFloat64(), TENURED)); |
| 80 | case Constant::kInt64: |
| 81 | case Constant::kExternalReference: |
| 82 | case Constant::kHeapObject: |
| 83 | // TODO(plind): Maybe we should handle ExtRef & HeapObj here? |
| 84 | // maybe not done on arm due to const pool ?? |
| 85 | break; |
| 86 | case Constant::kRpoNumber: |
| 87 | UNREACHABLE(); // TODO(titzer): RPO immediates on mips? |
| 88 | break; |
| 89 | } |
| 90 | UNREACHABLE(); |
| 91 | return Operand(zero_reg); |
| 92 | } |
| 93 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 94 | Operand InputOperand(size_t index) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 95 | InstructionOperand* op = instr_->InputAt(index); |
| 96 | if (op->IsRegister()) { |
| 97 | return Operand(ToRegister(op)); |
| 98 | } |
| 99 | return InputImmediate(index); |
| 100 | } |
| 101 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 102 | MemOperand MemoryOperand(size_t* first_index) { |
| 103 | const size_t index = *first_index; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 104 | switch (AddressingModeField::decode(instr_->opcode())) { |
| 105 | case kMode_None: |
| 106 | break; |
| 107 | case kMode_MRI: |
| 108 | *first_index += 2; |
| 109 | return MemOperand(InputRegister(index + 0), InputInt32(index + 1)); |
| 110 | case kMode_MRR: |
| 111 | // TODO(plind): r6 address mode, to be implemented ... |
| 112 | UNREACHABLE(); |
| 113 | } |
| 114 | UNREACHABLE(); |
| 115 | return MemOperand(no_reg); |
| 116 | } |
| 117 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 118 | MemOperand MemoryOperand(size_t index = 0) { return MemoryOperand(&index); } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 119 | |
| 120 | MemOperand ToMemOperand(InstructionOperand* op) const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 121 | DCHECK_NOT_NULL(op); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 122 | DCHECK(op->IsStackSlot() || op->IsFPStackSlot()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 123 | return SlotToMemOperand(AllocatedOperand::cast(op)->index()); |
| 124 | } |
| 125 | |
| 126 | MemOperand SlotToMemOperand(int slot) const { |
| 127 | FrameOffset offset = frame_access_state()->GetFrameOffset(slot); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 128 | return MemOperand(offset.from_stack_pointer() ? sp : fp, offset.offset()); |
| 129 | } |
| 130 | }; |
| 131 | |
| 132 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 133 | static inline bool HasRegisterInput(Instruction* instr, size_t index) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 134 | return instr->InputAt(index)->IsRegister(); |
| 135 | } |
| 136 | |
| 137 | |
| 138 | namespace { |
| 139 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 140 | class OutOfLineLoadSingle final : public OutOfLineCode { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 141 | public: |
| 142 | OutOfLineLoadSingle(CodeGenerator* gen, FloatRegister result) |
| 143 | : OutOfLineCode(gen), result_(result) {} |
| 144 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 145 | void Generate() final { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 146 | __ Move(result_, std::numeric_limits<float>::quiet_NaN()); |
| 147 | } |
| 148 | |
| 149 | private: |
| 150 | FloatRegister const result_; |
| 151 | }; |
| 152 | |
| 153 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 154 | class OutOfLineLoadDouble final : public OutOfLineCode { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 155 | public: |
| 156 | OutOfLineLoadDouble(CodeGenerator* gen, DoubleRegister result) |
| 157 | : OutOfLineCode(gen), result_(result) {} |
| 158 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 159 | void Generate() final { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 160 | __ Move(result_, std::numeric_limits<double>::quiet_NaN()); |
| 161 | } |
| 162 | |
| 163 | private: |
| 164 | DoubleRegister const result_; |
| 165 | }; |
| 166 | |
| 167 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 168 | class OutOfLineLoadInteger final : public OutOfLineCode { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 169 | public: |
| 170 | OutOfLineLoadInteger(CodeGenerator* gen, Register result) |
| 171 | : OutOfLineCode(gen), result_(result) {} |
| 172 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 173 | void Generate() final { __ mov(result_, zero_reg); } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 174 | |
| 175 | private: |
| 176 | Register const result_; |
| 177 | }; |
| 178 | |
| 179 | |
| 180 | class OutOfLineRound : public OutOfLineCode { |
| 181 | public: |
| 182 | OutOfLineRound(CodeGenerator* gen, DoubleRegister result) |
| 183 | : OutOfLineCode(gen), result_(result) {} |
| 184 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 185 | void Generate() final { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 186 | // Handle rounding to zero case where sign has to be preserved. |
| 187 | // High bits of double input already in kScratchReg. |
| 188 | __ srl(at, kScratchReg, 31); |
| 189 | __ sll(at, at, 31); |
| 190 | __ Mthc1(at, result_); |
| 191 | } |
| 192 | |
| 193 | private: |
| 194 | DoubleRegister const result_; |
| 195 | }; |
| 196 | |
| 197 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 198 | class OutOfLineRound32 : public OutOfLineCode { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 199 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 200 | OutOfLineRound32(CodeGenerator* gen, DoubleRegister result) |
| 201 | : OutOfLineCode(gen), result_(result) {} |
| 202 | |
| 203 | void Generate() final { |
| 204 | // Handle rounding to zero case where sign has to be preserved. |
| 205 | // High bits of float input already in kScratchReg. |
| 206 | __ srl(at, kScratchReg, 31); |
| 207 | __ sll(at, at, 31); |
| 208 | __ mtc1(at, result_); |
| 209 | } |
| 210 | |
| 211 | private: |
| 212 | DoubleRegister const result_; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 213 | }; |
| 214 | |
| 215 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 216 | class OutOfLineRecordWrite final : public OutOfLineCode { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 217 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 218 | OutOfLineRecordWrite(CodeGenerator* gen, Register object, Register index, |
| 219 | Register value, Register scratch0, Register scratch1, |
| 220 | RecordWriteMode mode) |
| 221 | : OutOfLineCode(gen), |
| 222 | object_(object), |
| 223 | index_(index), |
| 224 | value_(value), |
| 225 | scratch0_(scratch0), |
| 226 | scratch1_(scratch1), |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 227 | mode_(mode), |
| 228 | must_save_lr_(!gen->frame_access_state()->has_frame()) {} |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 229 | |
| 230 | void Generate() final { |
| 231 | if (mode_ > RecordWriteMode::kValueIsPointer) { |
| 232 | __ JumpIfSmi(value_, exit()); |
| 233 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 234 | __ CheckPageFlag(value_, scratch0_, |
| 235 | MemoryChunk::kPointersToHereAreInterestingMask, eq, |
| 236 | exit()); |
| 237 | RememberedSetAction const remembered_set_action = |
| 238 | mode_ > RecordWriteMode::kValueIsMap ? EMIT_REMEMBERED_SET |
| 239 | : OMIT_REMEMBERED_SET; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 240 | SaveFPRegsMode const save_fp_mode = |
| 241 | frame()->DidAllocateDoubleRegisters() ? kSaveFPRegs : kDontSaveFPRegs; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 242 | if (must_save_lr_) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 243 | // We need to save and restore ra if the frame was elided. |
| 244 | __ Push(ra); |
| 245 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 246 | RecordWriteStub stub(isolate(), object_, scratch0_, scratch1_, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 247 | remembered_set_action, save_fp_mode); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 248 | __ Addu(scratch1_, object_, index_); |
| 249 | __ CallStub(&stub); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 250 | if (must_save_lr_) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 251 | __ Pop(ra); |
| 252 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 253 | } |
| 254 | |
| 255 | private: |
| 256 | Register const object_; |
| 257 | Register const index_; |
| 258 | Register const value_; |
| 259 | Register const scratch0_; |
| 260 | Register const scratch1_; |
| 261 | RecordWriteMode const mode_; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 262 | bool must_save_lr_; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 263 | }; |
| 264 | |
| 265 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 266 | Condition FlagsConditionToConditionCmp(FlagsCondition condition) { |
| 267 | switch (condition) { |
| 268 | case kEqual: |
| 269 | return eq; |
| 270 | case kNotEqual: |
| 271 | return ne; |
| 272 | case kSignedLessThan: |
| 273 | return lt; |
| 274 | case kSignedGreaterThanOrEqual: |
| 275 | return ge; |
| 276 | case kSignedLessThanOrEqual: |
| 277 | return le; |
| 278 | case kSignedGreaterThan: |
| 279 | return gt; |
| 280 | case kUnsignedLessThan: |
| 281 | return lo; |
| 282 | case kUnsignedGreaterThanOrEqual: |
| 283 | return hs; |
| 284 | case kUnsignedLessThanOrEqual: |
| 285 | return ls; |
| 286 | case kUnsignedGreaterThan: |
| 287 | return hi; |
| 288 | case kUnorderedEqual: |
| 289 | case kUnorderedNotEqual: |
| 290 | break; |
| 291 | default: |
| 292 | break; |
| 293 | } |
| 294 | UNREACHABLE(); |
| 295 | return kNoCondition; |
| 296 | } |
| 297 | |
| 298 | |
| 299 | Condition FlagsConditionToConditionTst(FlagsCondition condition) { |
| 300 | switch (condition) { |
| 301 | case kNotEqual: |
| 302 | return ne; |
| 303 | case kEqual: |
| 304 | return eq; |
| 305 | default: |
| 306 | break; |
| 307 | } |
| 308 | UNREACHABLE(); |
| 309 | return kNoCondition; |
| 310 | } |
| 311 | |
| 312 | |
| 313 | FPUCondition FlagsConditionToConditionCmpFPU(bool& predicate, |
| 314 | FlagsCondition condition) { |
| 315 | switch (condition) { |
| 316 | case kEqual: |
| 317 | predicate = true; |
| 318 | return EQ; |
| 319 | case kNotEqual: |
| 320 | predicate = false; |
| 321 | return EQ; |
| 322 | case kUnsignedLessThan: |
| 323 | predicate = true; |
| 324 | return OLT; |
| 325 | case kUnsignedGreaterThanOrEqual: |
| 326 | predicate = false; |
| 327 | return ULT; |
| 328 | case kUnsignedLessThanOrEqual: |
| 329 | predicate = true; |
| 330 | return OLE; |
| 331 | case kUnsignedGreaterThan: |
| 332 | predicate = false; |
| 333 | return ULE; |
| 334 | case kUnorderedEqual: |
| 335 | case kUnorderedNotEqual: |
| 336 | predicate = true; |
| 337 | break; |
| 338 | default: |
| 339 | predicate = true; |
| 340 | break; |
| 341 | } |
| 342 | UNREACHABLE(); |
| 343 | return kNoFPUCondition; |
| 344 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 345 | |
| 346 | } // namespace |
| 347 | |
| 348 | |
| 349 | #define ASSEMBLE_CHECKED_LOAD_FLOAT(width, asm_instr) \ |
| 350 | do { \ |
| 351 | auto result = i.Output##width##Register(); \ |
| 352 | auto ool = new (zone()) OutOfLineLoad##width(this, result); \ |
| 353 | if (instr->InputAt(0)->IsRegister()) { \ |
| 354 | auto offset = i.InputRegister(0); \ |
| 355 | __ Branch(USE_DELAY_SLOT, ool->entry(), hs, offset, i.InputOperand(1)); \ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 356 | __ addu(kScratchReg, i.InputRegister(2), offset); \ |
| 357 | __ asm_instr(result, MemOperand(kScratchReg, 0)); \ |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 358 | } else { \ |
| 359 | auto offset = i.InputOperand(0).immediate(); \ |
| 360 | __ Branch(ool->entry(), ls, i.InputRegister(1), Operand(offset)); \ |
| 361 | __ asm_instr(result, MemOperand(i.InputRegister(2), offset)); \ |
| 362 | } \ |
| 363 | __ bind(ool->exit()); \ |
| 364 | } while (0) |
| 365 | |
| 366 | |
| 367 | #define ASSEMBLE_CHECKED_LOAD_INTEGER(asm_instr) \ |
| 368 | do { \ |
| 369 | auto result = i.OutputRegister(); \ |
| 370 | auto ool = new (zone()) OutOfLineLoadInteger(this, result); \ |
| 371 | if (instr->InputAt(0)->IsRegister()) { \ |
| 372 | auto offset = i.InputRegister(0); \ |
| 373 | __ Branch(USE_DELAY_SLOT, ool->entry(), hs, offset, i.InputOperand(1)); \ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 374 | __ addu(kScratchReg, i.InputRegister(2), offset); \ |
| 375 | __ asm_instr(result, MemOperand(kScratchReg, 0)); \ |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 376 | } else { \ |
| 377 | auto offset = i.InputOperand(0).immediate(); \ |
| 378 | __ Branch(ool->entry(), ls, i.InputRegister(1), Operand(offset)); \ |
| 379 | __ asm_instr(result, MemOperand(i.InputRegister(2), offset)); \ |
| 380 | } \ |
| 381 | __ bind(ool->exit()); \ |
| 382 | } while (0) |
| 383 | |
| 384 | |
| 385 | #define ASSEMBLE_CHECKED_STORE_FLOAT(width, asm_instr) \ |
| 386 | do { \ |
| 387 | Label done; \ |
| 388 | if (instr->InputAt(0)->IsRegister()) { \ |
| 389 | auto offset = i.InputRegister(0); \ |
| 390 | auto value = i.Input##width##Register(2); \ |
| 391 | __ Branch(USE_DELAY_SLOT, &done, hs, offset, i.InputOperand(1)); \ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 392 | __ addu(kScratchReg, i.InputRegister(3), offset); \ |
| 393 | __ asm_instr(value, MemOperand(kScratchReg, 0)); \ |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 394 | } else { \ |
| 395 | auto offset = i.InputOperand(0).immediate(); \ |
| 396 | auto value = i.Input##width##Register(2); \ |
| 397 | __ Branch(&done, ls, i.InputRegister(1), Operand(offset)); \ |
| 398 | __ asm_instr(value, MemOperand(i.InputRegister(3), offset)); \ |
| 399 | } \ |
| 400 | __ bind(&done); \ |
| 401 | } while (0) |
| 402 | |
| 403 | |
| 404 | #define ASSEMBLE_CHECKED_STORE_INTEGER(asm_instr) \ |
| 405 | do { \ |
| 406 | Label done; \ |
| 407 | if (instr->InputAt(0)->IsRegister()) { \ |
| 408 | auto offset = i.InputRegister(0); \ |
| 409 | auto value = i.InputRegister(2); \ |
| 410 | __ Branch(USE_DELAY_SLOT, &done, hs, offset, i.InputOperand(1)); \ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 411 | __ addu(kScratchReg, i.InputRegister(3), offset); \ |
| 412 | __ asm_instr(value, MemOperand(kScratchReg, 0)); \ |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 413 | } else { \ |
| 414 | auto offset = i.InputOperand(0).immediate(); \ |
| 415 | auto value = i.InputRegister(2); \ |
| 416 | __ Branch(&done, ls, i.InputRegister(1), Operand(offset)); \ |
| 417 | __ asm_instr(value, MemOperand(i.InputRegister(3), offset)); \ |
| 418 | } \ |
| 419 | __ bind(&done); \ |
| 420 | } while (0) |
| 421 | |
| 422 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 423 | #define ASSEMBLE_ROUND_DOUBLE_TO_DOUBLE(mode) \ |
| 424 | if (IsMipsArchVariant(kMips32r6)) { \ |
| 425 | __ cfc1(kScratchReg, FCSR); \ |
| 426 | __ li(at, Operand(mode_##mode)); \ |
| 427 | __ ctc1(at, FCSR); \ |
| 428 | __ rint_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0)); \ |
| 429 | __ ctc1(kScratchReg, FCSR); \ |
| 430 | } else { \ |
| 431 | auto ool = new (zone()) OutOfLineRound(this, i.OutputDoubleRegister()); \ |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 432 | Label done; \ |
| 433 | __ Mfhc1(kScratchReg, i.InputDoubleRegister(0)); \ |
| 434 | __ Ext(at, kScratchReg, HeapNumber::kExponentShift, \ |
| 435 | HeapNumber::kExponentBits); \ |
| 436 | __ Branch(USE_DELAY_SLOT, &done, hs, at, \ |
| 437 | Operand(HeapNumber::kExponentBias + HeapNumber::kMantissaBits)); \ |
| 438 | __ mov_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0)); \ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 439 | __ mode##_l_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0)); \ |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 440 | __ Move(at, kScratchReg2, i.OutputDoubleRegister()); \ |
| 441 | __ or_(at, at, kScratchReg2); \ |
| 442 | __ Branch(USE_DELAY_SLOT, ool->entry(), eq, at, Operand(zero_reg)); \ |
| 443 | __ cvt_d_l(i.OutputDoubleRegister(), i.OutputDoubleRegister()); \ |
| 444 | __ bind(ool->exit()); \ |
| 445 | __ bind(&done); \ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 446 | } |
| 447 | |
| 448 | |
| 449 | #define ASSEMBLE_ROUND_FLOAT_TO_FLOAT(mode) \ |
| 450 | if (IsMipsArchVariant(kMips32r6)) { \ |
| 451 | __ cfc1(kScratchReg, FCSR); \ |
| 452 | __ li(at, Operand(mode_##mode)); \ |
| 453 | __ ctc1(at, FCSR); \ |
| 454 | __ rint_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0)); \ |
| 455 | __ ctc1(kScratchReg, FCSR); \ |
| 456 | } else { \ |
| 457 | int32_t kFloat32ExponentBias = 127; \ |
| 458 | int32_t kFloat32MantissaBits = 23; \ |
| 459 | int32_t kFloat32ExponentBits = 8; \ |
| 460 | auto ool = new (zone()) OutOfLineRound32(this, i.OutputDoubleRegister()); \ |
| 461 | Label done; \ |
| 462 | __ mfc1(kScratchReg, i.InputDoubleRegister(0)); \ |
| 463 | __ Ext(at, kScratchReg, kFloat32MantissaBits, kFloat32ExponentBits); \ |
| 464 | __ Branch(USE_DELAY_SLOT, &done, hs, at, \ |
| 465 | Operand(kFloat32ExponentBias + kFloat32MantissaBits)); \ |
| 466 | __ mov_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0)); \ |
| 467 | __ mode##_w_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0)); \ |
| 468 | __ mfc1(at, i.OutputDoubleRegister()); \ |
| 469 | __ Branch(USE_DELAY_SLOT, ool->entry(), eq, at, Operand(zero_reg)); \ |
| 470 | __ cvt_s_w(i.OutputDoubleRegister(), i.OutputDoubleRegister()); \ |
| 471 | __ bind(ool->exit()); \ |
| 472 | __ bind(&done); \ |
| 473 | } |
| 474 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 475 | #define ASSEMBLE_ATOMIC_LOAD_INTEGER(asm_instr) \ |
| 476 | do { \ |
| 477 | __ asm_instr(i.OutputRegister(), i.MemoryOperand()); \ |
| 478 | __ sync(); \ |
| 479 | } while (0) |
| 480 | |
| 481 | #define ASSEMBLE_ATOMIC_STORE_INTEGER(asm_instr) \ |
| 482 | do { \ |
| 483 | __ sync(); \ |
| 484 | __ asm_instr(i.InputRegister(2), i.MemoryOperand()); \ |
| 485 | __ sync(); \ |
| 486 | } while (0) |
| 487 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 488 | #define ASSEMBLE_IEEE754_BINOP(name) \ |
| 489 | do { \ |
| 490 | FrameScope scope(masm(), StackFrame::MANUAL); \ |
| 491 | __ PrepareCallCFunction(0, 2, kScratchReg); \ |
| 492 | __ MovToFloatParameters(i.InputDoubleRegister(0), \ |
| 493 | i.InputDoubleRegister(1)); \ |
| 494 | __ CallCFunction(ExternalReference::ieee754_##name##_function(isolate()), \ |
| 495 | 0, 2); \ |
| 496 | /* Move the result in the double result register. */ \ |
| 497 | __ MovFromFloatResult(i.OutputDoubleRegister()); \ |
| 498 | } while (0) |
| 499 | |
| 500 | #define ASSEMBLE_IEEE754_UNOP(name) \ |
| 501 | do { \ |
| 502 | FrameScope scope(masm(), StackFrame::MANUAL); \ |
| 503 | __ PrepareCallCFunction(0, 1, kScratchReg); \ |
| 504 | __ MovToFloatParameter(i.InputDoubleRegister(0)); \ |
| 505 | __ CallCFunction(ExternalReference::ieee754_##name##_function(isolate()), \ |
| 506 | 0, 1); \ |
| 507 | /* Move the result in the double result register. */ \ |
| 508 | __ MovFromFloatResult(i.OutputDoubleRegister()); \ |
| 509 | } while (0) |
| 510 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 511 | void CodeGenerator::AssembleDeconstructFrame() { |
| 512 | __ mov(sp, fp); |
| 513 | __ Pop(ra, fp); |
| 514 | } |
| 515 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 516 | void CodeGenerator::AssembleDeconstructActivationRecord(int stack_param_delta) { |
| 517 | int sp_slot_delta = TailCallFrameStackSlotDelta(stack_param_delta); |
| 518 | if (sp_slot_delta > 0) { |
| 519 | __ addiu(sp, sp, sp_slot_delta * kPointerSize); |
| 520 | } |
| 521 | frame_access_state()->SetFrameAccessToDefault(); |
| 522 | } |
| 523 | |
| 524 | |
| 525 | void CodeGenerator::AssemblePrepareTailCall(int stack_param_delta) { |
| 526 | int sp_slot_delta = TailCallFrameStackSlotDelta(stack_param_delta); |
| 527 | if (sp_slot_delta < 0) { |
| 528 | __ Subu(sp, sp, Operand(-sp_slot_delta * kPointerSize)); |
| 529 | frame_access_state()->IncreaseSPDelta(-sp_slot_delta); |
| 530 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 531 | if (frame_access_state()->has_frame()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 532 | __ lw(ra, MemOperand(fp, StandardFrameConstants::kCallerPCOffset)); |
| 533 | __ lw(fp, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); |
| 534 | } |
| 535 | frame_access_state()->SetFrameAccessToSP(); |
| 536 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 537 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 538 | void CodeGenerator::AssemblePopArgumentsAdaptorFrame(Register args_reg, |
| 539 | Register scratch1, |
| 540 | Register scratch2, |
| 541 | Register scratch3) { |
| 542 | DCHECK(!AreAliased(args_reg, scratch1, scratch2, scratch3)); |
| 543 | Label done; |
| 544 | |
| 545 | // Check if current frame is an arguments adaptor frame. |
| 546 | __ lw(scratch1, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 547 | __ Branch(&done, ne, scratch1, |
| 548 | Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
| 549 | |
| 550 | // Load arguments count from current arguments adaptor frame (note, it |
| 551 | // does not include receiver). |
| 552 | Register caller_args_count_reg = scratch1; |
| 553 | __ lw(caller_args_count_reg, |
| 554 | MemOperand(fp, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 555 | __ SmiUntag(caller_args_count_reg); |
| 556 | |
| 557 | ParameterCount callee_args_count(args_reg); |
| 558 | __ PrepareForTailCall(callee_args_count, caller_args_count_reg, scratch2, |
| 559 | scratch3); |
| 560 | __ bind(&done); |
| 561 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 562 | |
| 563 | // Assembles an instruction after register allocation, producing machine code. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 564 | CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction( |
| 565 | Instruction* instr) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 566 | MipsOperandConverter i(this, instr); |
| 567 | InstructionCode opcode = instr->opcode(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 568 | ArchOpcode arch_opcode = ArchOpcodeField::decode(opcode); |
| 569 | switch (arch_opcode) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 570 | case kArchCallCodeObject: { |
| 571 | EnsureSpaceForLazyDeopt(); |
| 572 | if (instr->InputAt(0)->IsImmediate()) { |
| 573 | __ Call(Handle<Code>::cast(i.InputHeapObject(0)), |
| 574 | RelocInfo::CODE_TARGET); |
| 575 | } else { |
| 576 | __ addiu(at, i.InputRegister(0), Code::kHeaderSize - kHeapObjectTag); |
| 577 | __ Call(at); |
| 578 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 579 | RecordCallPosition(instr); |
| 580 | frame_access_state()->ClearSPDelta(); |
| 581 | break; |
| 582 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 583 | case kArchTailCallCodeObjectFromJSFunction: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 584 | case kArchTailCallCodeObject: { |
| 585 | int stack_param_delta = i.InputInt32(instr->InputCount() - 1); |
| 586 | AssembleDeconstructActivationRecord(stack_param_delta); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 587 | if (arch_opcode == kArchTailCallCodeObjectFromJSFunction) { |
| 588 | AssemblePopArgumentsAdaptorFrame(kJavaScriptCallArgCountRegister, |
| 589 | i.TempRegister(0), i.TempRegister(1), |
| 590 | i.TempRegister(2)); |
| 591 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 592 | if (instr->InputAt(0)->IsImmediate()) { |
| 593 | __ Jump(Handle<Code>::cast(i.InputHeapObject(0)), |
| 594 | RelocInfo::CODE_TARGET); |
| 595 | } else { |
| 596 | __ addiu(at, i.InputRegister(0), Code::kHeaderSize - kHeapObjectTag); |
| 597 | __ Jump(at); |
| 598 | } |
| 599 | frame_access_state()->ClearSPDelta(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 600 | break; |
| 601 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 602 | case kArchTailCallAddress: { |
| 603 | int stack_param_delta = i.InputInt32(instr->InputCount() - 1); |
| 604 | AssembleDeconstructActivationRecord(stack_param_delta); |
| 605 | CHECK(!instr->InputAt(0)->IsImmediate()); |
| 606 | __ Jump(i.InputRegister(0)); |
| 607 | frame_access_state()->ClearSPDelta(); |
| 608 | break; |
| 609 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 610 | case kArchCallJSFunction: { |
| 611 | EnsureSpaceForLazyDeopt(); |
| 612 | Register func = i.InputRegister(0); |
| 613 | if (FLAG_debug_code) { |
| 614 | // Check the function's context matches the context argument. |
| 615 | __ lw(kScratchReg, FieldMemOperand(func, JSFunction::kContextOffset)); |
| 616 | __ Assert(eq, kWrongFunctionContext, cp, Operand(kScratchReg)); |
| 617 | } |
| 618 | |
| 619 | __ lw(at, FieldMemOperand(func, JSFunction::kCodeEntryOffset)); |
| 620 | __ Call(at); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 621 | RecordCallPosition(instr); |
| 622 | frame_access_state()->ClearSPDelta(); |
| 623 | break; |
| 624 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 625 | case kArchTailCallJSFunctionFromJSFunction: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 626 | case kArchTailCallJSFunction: { |
| 627 | Register func = i.InputRegister(0); |
| 628 | if (FLAG_debug_code) { |
| 629 | // Check the function's context matches the context argument. |
| 630 | __ lw(kScratchReg, FieldMemOperand(func, JSFunction::kContextOffset)); |
| 631 | __ Assert(eq, kWrongFunctionContext, cp, Operand(kScratchReg)); |
| 632 | } |
| 633 | |
| 634 | int stack_param_delta = i.InputInt32(instr->InputCount() - 1); |
| 635 | AssembleDeconstructActivationRecord(stack_param_delta); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 636 | if (arch_opcode == kArchTailCallJSFunctionFromJSFunction) { |
| 637 | AssemblePopArgumentsAdaptorFrame(kJavaScriptCallArgCountRegister, |
| 638 | i.TempRegister(0), i.TempRegister(1), |
| 639 | i.TempRegister(2)); |
| 640 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 641 | __ lw(at, FieldMemOperand(func, JSFunction::kCodeEntryOffset)); |
| 642 | __ Jump(at); |
| 643 | frame_access_state()->ClearSPDelta(); |
| 644 | break; |
| 645 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 646 | case kArchPrepareCallCFunction: { |
| 647 | int const num_parameters = MiscField::decode(instr->opcode()); |
| 648 | __ PrepareCallCFunction(num_parameters, kScratchReg); |
| 649 | // Frame alignment requires using FP-relative frame addressing. |
| 650 | frame_access_state()->SetFrameAccessToFP(); |
| 651 | break; |
| 652 | } |
| 653 | case kArchPrepareTailCall: |
| 654 | AssemblePrepareTailCall(i.InputInt32(instr->InputCount() - 1)); |
| 655 | break; |
| 656 | case kArchCallCFunction: { |
| 657 | int const num_parameters = MiscField::decode(instr->opcode()); |
| 658 | if (instr->InputAt(0)->IsImmediate()) { |
| 659 | ExternalReference ref = i.InputExternalReference(0); |
| 660 | __ CallCFunction(ref, num_parameters); |
| 661 | } else { |
| 662 | Register func = i.InputRegister(0); |
| 663 | __ CallCFunction(func, num_parameters); |
| 664 | } |
| 665 | frame_access_state()->SetFrameAccessToDefault(); |
| 666 | frame_access_state()->ClearSPDelta(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 667 | break; |
| 668 | } |
| 669 | case kArchJmp: |
| 670 | AssembleArchJump(i.InputRpo(0)); |
| 671 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 672 | case kArchLookupSwitch: |
| 673 | AssembleArchLookupSwitch(instr); |
| 674 | break; |
| 675 | case kArchTableSwitch: |
| 676 | AssembleArchTableSwitch(instr); |
| 677 | break; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 678 | case kArchDebugBreak: |
| 679 | __ stop("kArchDebugBreak"); |
| 680 | break; |
| 681 | case kArchComment: { |
| 682 | Address comment_string = i.InputExternalReference(0).address(); |
| 683 | __ RecordComment(reinterpret_cast<const char*>(comment_string)); |
| 684 | break; |
| 685 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 686 | case kArchNop: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 687 | case kArchThrowTerminator: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 688 | // don't emit code for nops. |
| 689 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 690 | case kArchDeoptimize: { |
| 691 | int deopt_state_id = |
| 692 | BuildTranslation(instr, -1, 0, OutputFrameStateCombine::Ignore()); |
| 693 | Deoptimizer::BailoutType bailout_type = |
| 694 | Deoptimizer::BailoutType(MiscField::decode(instr->opcode())); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 695 | CodeGenResult result = |
| 696 | AssembleDeoptimizerCall(deopt_state_id, bailout_type); |
| 697 | if (result != kSuccess) return result; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 698 | break; |
| 699 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 700 | case kArchRet: |
| 701 | AssembleReturn(); |
| 702 | break; |
| 703 | case kArchStackPointer: |
| 704 | __ mov(i.OutputRegister(), sp); |
| 705 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 706 | case kArchFramePointer: |
| 707 | __ mov(i.OutputRegister(), fp); |
| 708 | break; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 709 | case kArchParentFramePointer: |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 710 | if (frame_access_state()->has_frame()) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 711 | __ lw(i.OutputRegister(), MemOperand(fp, 0)); |
| 712 | } else { |
| 713 | __ mov(i.OutputRegister(), fp); |
| 714 | } |
| 715 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 716 | case kArchTruncateDoubleToI: |
| 717 | __ TruncateDoubleToI(i.OutputRegister(), i.InputDoubleRegister(0)); |
| 718 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 719 | case kArchStoreWithWriteBarrier: { |
| 720 | RecordWriteMode mode = |
| 721 | static_cast<RecordWriteMode>(MiscField::decode(instr->opcode())); |
| 722 | Register object = i.InputRegister(0); |
| 723 | Register index = i.InputRegister(1); |
| 724 | Register value = i.InputRegister(2); |
| 725 | Register scratch0 = i.TempRegister(0); |
| 726 | Register scratch1 = i.TempRegister(1); |
| 727 | auto ool = new (zone()) OutOfLineRecordWrite(this, object, index, value, |
| 728 | scratch0, scratch1, mode); |
| 729 | __ Addu(at, object, index); |
| 730 | __ sw(value, MemOperand(at)); |
| 731 | __ CheckPageFlag(object, scratch0, |
| 732 | MemoryChunk::kPointersFromHereAreInterestingMask, ne, |
| 733 | ool->entry()); |
| 734 | __ bind(ool->exit()); |
| 735 | break; |
| 736 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 737 | case kArchStackSlot: { |
| 738 | FrameOffset offset = |
| 739 | frame_access_state()->GetFrameOffset(i.InputInt32(0)); |
| 740 | __ Addu(i.OutputRegister(), offset.from_stack_pointer() ? sp : fp, |
| 741 | Operand(offset.offset())); |
| 742 | break; |
| 743 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 744 | case kIeee754Float64Atan: |
| 745 | ASSEMBLE_IEEE754_UNOP(atan); |
| 746 | break; |
| 747 | case kIeee754Float64Atan2: |
| 748 | ASSEMBLE_IEEE754_BINOP(atan2); |
| 749 | break; |
| 750 | case kIeee754Float64Cos: |
| 751 | ASSEMBLE_IEEE754_UNOP(cos); |
| 752 | break; |
| 753 | case kIeee754Float64Cbrt: |
| 754 | ASSEMBLE_IEEE754_UNOP(cbrt); |
| 755 | break; |
| 756 | case kIeee754Float64Exp: |
| 757 | ASSEMBLE_IEEE754_UNOP(exp); |
| 758 | break; |
| 759 | case kIeee754Float64Expm1: |
| 760 | ASSEMBLE_IEEE754_UNOP(expm1); |
| 761 | break; |
| 762 | case kIeee754Float64Atanh: |
| 763 | ASSEMBLE_IEEE754_UNOP(atanh); |
| 764 | break; |
| 765 | case kIeee754Float64Log: |
| 766 | ASSEMBLE_IEEE754_UNOP(log); |
| 767 | break; |
| 768 | case kIeee754Float64Log1p: |
| 769 | ASSEMBLE_IEEE754_UNOP(log1p); |
| 770 | break; |
| 771 | case kIeee754Float64Log10: |
| 772 | ASSEMBLE_IEEE754_UNOP(log10); |
| 773 | break; |
| 774 | case kIeee754Float64Log2: |
| 775 | ASSEMBLE_IEEE754_UNOP(log2); |
| 776 | break; |
| 777 | case kIeee754Float64Sin: |
| 778 | ASSEMBLE_IEEE754_UNOP(sin); |
| 779 | break; |
| 780 | case kIeee754Float64Tan: |
| 781 | ASSEMBLE_IEEE754_UNOP(tan); |
| 782 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 783 | case kMipsAdd: |
| 784 | __ Addu(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
| 785 | break; |
| 786 | case kMipsAddOvf: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 787 | // Pseudo-instruction used for overflow/branch. No opcode emitted here. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 788 | break; |
| 789 | case kMipsSub: |
| 790 | __ Subu(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
| 791 | break; |
| 792 | case kMipsSubOvf: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 793 | // Pseudo-instruction used for overflow/branch. No opcode emitted here. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 794 | break; |
| 795 | case kMipsMul: |
| 796 | __ Mul(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
| 797 | break; |
| 798 | case kMipsMulHigh: |
| 799 | __ Mulh(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
| 800 | break; |
| 801 | case kMipsMulHighU: |
| 802 | __ Mulhu(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
| 803 | break; |
| 804 | case kMipsDiv: |
| 805 | __ Div(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 806 | if (IsMipsArchVariant(kMips32r6)) { |
| 807 | __ selnez(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1)); |
| 808 | } else { |
| 809 | __ Movz(i.OutputRegister(), i.InputRegister(1), i.InputRegister(1)); |
| 810 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 811 | break; |
| 812 | case kMipsDivU: |
| 813 | __ Divu(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 814 | if (IsMipsArchVariant(kMips32r6)) { |
| 815 | __ selnez(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1)); |
| 816 | } else { |
| 817 | __ Movz(i.OutputRegister(), i.InputRegister(1), i.InputRegister(1)); |
| 818 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 819 | break; |
| 820 | case kMipsMod: |
| 821 | __ Mod(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
| 822 | break; |
| 823 | case kMipsModU: |
| 824 | __ Modu(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
| 825 | break; |
| 826 | case kMipsAnd: |
| 827 | __ And(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
| 828 | break; |
| 829 | case kMipsOr: |
| 830 | __ Or(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
| 831 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 832 | case kMipsNor: |
| 833 | if (instr->InputAt(1)->IsRegister()) { |
| 834 | __ Nor(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
| 835 | } else { |
| 836 | DCHECK(i.InputOperand(1).immediate() == 0); |
| 837 | __ Nor(i.OutputRegister(), i.InputRegister(0), zero_reg); |
| 838 | } |
| 839 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 840 | case kMipsXor: |
| 841 | __ Xor(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
| 842 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 843 | case kMipsClz: |
| 844 | __ Clz(i.OutputRegister(), i.InputRegister(0)); |
| 845 | break; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 846 | case kMipsCtz: { |
| 847 | Register reg1 = kScratchReg; |
| 848 | Register reg2 = kScratchReg2; |
| 849 | Label skip_for_zero; |
| 850 | Label end; |
| 851 | // Branch if the operand is zero |
| 852 | __ Branch(&skip_for_zero, eq, i.InputRegister(0), Operand(zero_reg)); |
| 853 | // Find the number of bits before the last bit set to 1. |
| 854 | __ Subu(reg2, zero_reg, i.InputRegister(0)); |
| 855 | __ And(reg2, reg2, i.InputRegister(0)); |
| 856 | __ clz(reg2, reg2); |
| 857 | // Get the number of bits after the last bit set to 1. |
| 858 | __ li(reg1, 0x1F); |
| 859 | __ Subu(i.OutputRegister(), reg1, reg2); |
| 860 | __ Branch(&end); |
| 861 | __ bind(&skip_for_zero); |
| 862 | // If the operand is zero, return word length as the result. |
| 863 | __ li(i.OutputRegister(), 0x20); |
| 864 | __ bind(&end); |
| 865 | } break; |
| 866 | case kMipsPopcnt: { |
| 867 | Register reg1 = kScratchReg; |
| 868 | Register reg2 = kScratchReg2; |
| 869 | uint32_t m1 = 0x55555555; |
| 870 | uint32_t m2 = 0x33333333; |
| 871 | uint32_t m4 = 0x0f0f0f0f; |
| 872 | uint32_t m8 = 0x00ff00ff; |
| 873 | uint32_t m16 = 0x0000ffff; |
| 874 | |
| 875 | // Put count of ones in every 2 bits into those 2 bits. |
| 876 | __ li(at, m1); |
| 877 | __ srl(reg1, i.InputRegister(0), 1); |
| 878 | __ And(reg2, i.InputRegister(0), at); |
| 879 | __ And(reg1, reg1, at); |
| 880 | __ addu(reg1, reg1, reg2); |
| 881 | |
| 882 | // Put count of ones in every 4 bits into those 4 bits. |
| 883 | __ li(at, m2); |
| 884 | __ srl(reg2, reg1, 2); |
| 885 | __ And(reg2, reg2, at); |
| 886 | __ And(reg1, reg1, at); |
| 887 | __ addu(reg1, reg1, reg2); |
| 888 | |
| 889 | // Put count of ones in every 8 bits into those 8 bits. |
| 890 | __ li(at, m4); |
| 891 | __ srl(reg2, reg1, 4); |
| 892 | __ And(reg2, reg2, at); |
| 893 | __ And(reg1, reg1, at); |
| 894 | __ addu(reg1, reg1, reg2); |
| 895 | |
| 896 | // Put count of ones in every 16 bits into those 16 bits. |
| 897 | __ li(at, m8); |
| 898 | __ srl(reg2, reg1, 8); |
| 899 | __ And(reg2, reg2, at); |
| 900 | __ And(reg1, reg1, at); |
| 901 | __ addu(reg1, reg1, reg2); |
| 902 | |
| 903 | // Calculate total number of ones. |
| 904 | __ li(at, m16); |
| 905 | __ srl(reg2, reg1, 16); |
| 906 | __ And(reg2, reg2, at); |
| 907 | __ And(reg1, reg1, at); |
| 908 | __ addu(i.OutputRegister(), reg1, reg2); |
| 909 | } break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 910 | case kMipsShl: |
| 911 | if (instr->InputAt(1)->IsRegister()) { |
| 912 | __ sllv(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1)); |
| 913 | } else { |
| 914 | int32_t imm = i.InputOperand(1).immediate(); |
| 915 | __ sll(i.OutputRegister(), i.InputRegister(0), imm); |
| 916 | } |
| 917 | break; |
| 918 | case kMipsShr: |
| 919 | if (instr->InputAt(1)->IsRegister()) { |
| 920 | __ srlv(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1)); |
| 921 | } else { |
| 922 | int32_t imm = i.InputOperand(1).immediate(); |
| 923 | __ srl(i.OutputRegister(), i.InputRegister(0), imm); |
| 924 | } |
| 925 | break; |
| 926 | case kMipsSar: |
| 927 | if (instr->InputAt(1)->IsRegister()) { |
| 928 | __ srav(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1)); |
| 929 | } else { |
| 930 | int32_t imm = i.InputOperand(1).immediate(); |
| 931 | __ sra(i.OutputRegister(), i.InputRegister(0), imm); |
| 932 | } |
| 933 | break; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 934 | case kMipsShlPair: { |
| 935 | if (instr->InputAt(2)->IsRegister()) { |
| 936 | __ ShlPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 937 | i.InputRegister(1), i.InputRegister(2)); |
| 938 | } else { |
| 939 | uint32_t imm = i.InputOperand(2).immediate(); |
| 940 | __ ShlPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 941 | i.InputRegister(1), imm); |
| 942 | } |
| 943 | } break; |
| 944 | case kMipsShrPair: { |
| 945 | if (instr->InputAt(2)->IsRegister()) { |
| 946 | __ ShrPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 947 | i.InputRegister(1), i.InputRegister(2)); |
| 948 | } else { |
| 949 | uint32_t imm = i.InputOperand(2).immediate(); |
| 950 | __ ShrPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 951 | i.InputRegister(1), imm); |
| 952 | } |
| 953 | } break; |
| 954 | case kMipsSarPair: { |
| 955 | if (instr->InputAt(2)->IsRegister()) { |
| 956 | __ SarPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 957 | i.InputRegister(1), i.InputRegister(2)); |
| 958 | } else { |
| 959 | uint32_t imm = i.InputOperand(2).immediate(); |
| 960 | __ SarPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 961 | i.InputRegister(1), imm); |
| 962 | } |
| 963 | } break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 964 | case kMipsExt: |
| 965 | __ Ext(i.OutputRegister(), i.InputRegister(0), i.InputInt8(1), |
| 966 | i.InputInt8(2)); |
| 967 | break; |
| 968 | case kMipsIns: |
| 969 | if (instr->InputAt(1)->IsImmediate() && i.InputInt8(1) == 0) { |
| 970 | __ Ins(i.OutputRegister(), zero_reg, i.InputInt8(1), i.InputInt8(2)); |
| 971 | } else { |
| 972 | __ Ins(i.OutputRegister(), i.InputRegister(0), i.InputInt8(1), |
| 973 | i.InputInt8(2)); |
| 974 | } |
| 975 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 976 | case kMipsRor: |
| 977 | __ Ror(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1)); |
| 978 | break; |
| 979 | case kMipsTst: |
| 980 | // Pseudo-instruction used for tst/branch. No opcode emitted here. |
| 981 | break; |
| 982 | case kMipsCmp: |
| 983 | // Pseudo-instruction used for cmp/branch. No opcode emitted here. |
| 984 | break; |
| 985 | case kMipsMov: |
| 986 | // TODO(plind): Should we combine mov/li like this, or use separate instr? |
| 987 | // - Also see x64 ASSEMBLE_BINOP & RegisterOrOperandType |
| 988 | if (HasRegisterInput(instr, 0)) { |
| 989 | __ mov(i.OutputRegister(), i.InputRegister(0)); |
| 990 | } else { |
| 991 | __ li(i.OutputRegister(), i.InputOperand(0)); |
| 992 | } |
| 993 | break; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 994 | case kMipsLsa: |
| 995 | DCHECK(instr->InputAt(2)->IsImmediate()); |
| 996 | __ Lsa(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1), |
| 997 | i.InputInt8(2)); |
| 998 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 999 | case kMipsCmpS: |
| 1000 | // Psuedo-instruction used for FP cmp/branch. No opcode emitted here. |
| 1001 | break; |
| 1002 | case kMipsAddS: |
| 1003 | // TODO(plind): add special case: combine mult & add. |
| 1004 | __ add_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1005 | i.InputDoubleRegister(1)); |
| 1006 | break; |
| 1007 | case kMipsSubS: |
| 1008 | __ sub_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1009 | i.InputDoubleRegister(1)); |
| 1010 | break; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1011 | case kMipsSubPreserveNanS: |
| 1012 | __ SubNanPreservePayloadAndSign_s(i.OutputDoubleRegister(), |
| 1013 | i.InputDoubleRegister(0), |
| 1014 | i.InputDoubleRegister(1)); |
| 1015 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1016 | case kMipsMulS: |
| 1017 | // TODO(plind): add special case: right op is -1.0, see arm port. |
| 1018 | __ mul_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1019 | i.InputDoubleRegister(1)); |
| 1020 | break; |
| 1021 | case kMipsDivS: |
| 1022 | __ div_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1023 | i.InputDoubleRegister(1)); |
| 1024 | break; |
| 1025 | case kMipsModS: { |
| 1026 | // TODO(bmeurer): We should really get rid of this special instruction, |
| 1027 | // and generate a CallAddress instruction instead. |
| 1028 | FrameScope scope(masm(), StackFrame::MANUAL); |
| 1029 | __ PrepareCallCFunction(0, 2, kScratchReg); |
| 1030 | __ MovToFloatParameters(i.InputDoubleRegister(0), |
| 1031 | i.InputDoubleRegister(1)); |
| 1032 | // TODO(balazs.kilvady): implement mod_two_floats_operation(isolate()) |
| 1033 | __ CallCFunction(ExternalReference::mod_two_doubles_operation(isolate()), |
| 1034 | 0, 2); |
| 1035 | // Move the result in the double result register. |
| 1036 | __ MovFromFloatResult(i.OutputSingleRegister()); |
| 1037 | break; |
| 1038 | } |
| 1039 | case kMipsAbsS: |
| 1040 | __ abs_s(i.OutputSingleRegister(), i.InputSingleRegister(0)); |
| 1041 | break; |
| 1042 | case kMipsSqrtS: { |
| 1043 | __ sqrt_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0)); |
| 1044 | break; |
| 1045 | } |
| 1046 | case kMipsMaxS: |
| 1047 | __ max_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1048 | i.InputDoubleRegister(1)); |
| 1049 | break; |
| 1050 | case kMipsMinS: |
| 1051 | __ min_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1052 | i.InputDoubleRegister(1)); |
| 1053 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1054 | case kMipsCmpD: |
| 1055 | // Psuedo-instruction used for FP cmp/branch. No opcode emitted here. |
| 1056 | break; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1057 | case kMipsAddPair: |
| 1058 | __ AddPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 1059 | i.InputRegister(1), i.InputRegister(2), i.InputRegister(3)); |
| 1060 | break; |
| 1061 | case kMipsSubPair: |
| 1062 | __ SubPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0), |
| 1063 | i.InputRegister(1), i.InputRegister(2), i.InputRegister(3)); |
| 1064 | break; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1065 | case kMipsMulPair: { |
| 1066 | __ Mulu(i.OutputRegister(1), i.OutputRegister(0), i.InputRegister(0), |
| 1067 | i.InputRegister(2)); |
| 1068 | __ mul(kScratchReg, i.InputRegister(0), i.InputRegister(3)); |
| 1069 | __ mul(kScratchReg2, i.InputRegister(1), i.InputRegister(2)); |
| 1070 | __ Addu(i.OutputRegister(1), i.OutputRegister(1), kScratchReg); |
| 1071 | __ Addu(i.OutputRegister(1), i.OutputRegister(1), kScratchReg2); |
| 1072 | } break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1073 | case kMipsAddD: |
| 1074 | // TODO(plind): add special case: combine mult & add. |
| 1075 | __ add_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1076 | i.InputDoubleRegister(1)); |
| 1077 | break; |
| 1078 | case kMipsSubD: |
| 1079 | __ sub_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1080 | i.InputDoubleRegister(1)); |
| 1081 | break; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1082 | case kMipsSubPreserveNanD: |
| 1083 | __ SubNanPreservePayloadAndSign_d(i.OutputDoubleRegister(), |
| 1084 | i.InputDoubleRegister(0), |
| 1085 | i.InputDoubleRegister(1)); |
| 1086 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1087 | case kMipsMulD: |
| 1088 | // TODO(plind): add special case: right op is -1.0, see arm port. |
| 1089 | __ mul_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1090 | i.InputDoubleRegister(1)); |
| 1091 | break; |
| 1092 | case kMipsDivD: |
| 1093 | __ div_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1094 | i.InputDoubleRegister(1)); |
| 1095 | break; |
| 1096 | case kMipsModD: { |
| 1097 | // TODO(bmeurer): We should really get rid of this special instruction, |
| 1098 | // and generate a CallAddress instruction instead. |
| 1099 | FrameScope scope(masm(), StackFrame::MANUAL); |
| 1100 | __ PrepareCallCFunction(0, 2, kScratchReg); |
| 1101 | __ MovToFloatParameters(i.InputDoubleRegister(0), |
| 1102 | i.InputDoubleRegister(1)); |
| 1103 | __ CallCFunction(ExternalReference::mod_two_doubles_operation(isolate()), |
| 1104 | 0, 2); |
| 1105 | // Move the result in the double result register. |
| 1106 | __ MovFromFloatResult(i.OutputDoubleRegister()); |
| 1107 | break; |
| 1108 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1109 | case kMipsAbsD: |
| 1110 | __ abs_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0)); |
| 1111 | break; |
| 1112 | case kMipsSqrtD: { |
| 1113 | __ sqrt_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1114 | break; |
| 1115 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1116 | case kMipsMaxD: |
| 1117 | __ max_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1118 | i.InputDoubleRegister(1)); |
| 1119 | break; |
| 1120 | case kMipsMinD: |
| 1121 | __ min_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1122 | i.InputDoubleRegister(1)); |
| 1123 | break; |
| 1124 | case kMipsFloat64RoundDown: { |
| 1125 | ASSEMBLE_ROUND_DOUBLE_TO_DOUBLE(floor); |
| 1126 | break; |
| 1127 | } |
| 1128 | case kMipsFloat32RoundDown: { |
| 1129 | ASSEMBLE_ROUND_FLOAT_TO_FLOAT(floor); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1130 | break; |
| 1131 | } |
| 1132 | case kMipsFloat64RoundTruncate: { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1133 | ASSEMBLE_ROUND_DOUBLE_TO_DOUBLE(trunc); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1134 | break; |
| 1135 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1136 | case kMipsFloat32RoundTruncate: { |
| 1137 | ASSEMBLE_ROUND_FLOAT_TO_FLOAT(trunc); |
| 1138 | break; |
| 1139 | } |
| 1140 | case kMipsFloat64RoundUp: { |
| 1141 | ASSEMBLE_ROUND_DOUBLE_TO_DOUBLE(ceil); |
| 1142 | break; |
| 1143 | } |
| 1144 | case kMipsFloat32RoundUp: { |
| 1145 | ASSEMBLE_ROUND_FLOAT_TO_FLOAT(ceil); |
| 1146 | break; |
| 1147 | } |
| 1148 | case kMipsFloat64RoundTiesEven: { |
| 1149 | ASSEMBLE_ROUND_DOUBLE_TO_DOUBLE(round); |
| 1150 | break; |
| 1151 | } |
| 1152 | case kMipsFloat32RoundTiesEven: { |
| 1153 | ASSEMBLE_ROUND_FLOAT_TO_FLOAT(round); |
| 1154 | break; |
| 1155 | } |
| 1156 | case kMipsFloat64Max: { |
| 1157 | // (b < a) ? a : b |
| 1158 | if (IsMipsArchVariant(kMips32r6)) { |
| 1159 | __ cmp_d(OLT, i.OutputDoubleRegister(), i.InputDoubleRegister(1), |
| 1160 | i.InputDoubleRegister(0)); |
| 1161 | __ sel_d(i.OutputDoubleRegister(), i.InputDoubleRegister(1), |
| 1162 | i.InputDoubleRegister(0)); |
| 1163 | } else { |
| 1164 | __ c_d(OLT, i.InputDoubleRegister(0), i.InputDoubleRegister(1)); |
| 1165 | // Left operand is result, passthrough if false. |
| 1166 | __ movt_d(i.OutputDoubleRegister(), i.InputDoubleRegister(1)); |
| 1167 | } |
| 1168 | break; |
| 1169 | } |
| 1170 | case kMipsFloat64Min: { |
| 1171 | // (a < b) ? a : b |
| 1172 | if (IsMipsArchVariant(kMips32r6)) { |
| 1173 | __ cmp_d(OLT, i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1174 | i.InputDoubleRegister(1)); |
| 1175 | __ sel_d(i.OutputDoubleRegister(), i.InputDoubleRegister(1), |
| 1176 | i.InputDoubleRegister(0)); |
| 1177 | } else { |
| 1178 | __ c_d(OLT, i.InputDoubleRegister(1), i.InputDoubleRegister(0)); |
| 1179 | // Right operand is result, passthrough if false. |
| 1180 | __ movt_d(i.OutputDoubleRegister(), i.InputDoubleRegister(1)); |
| 1181 | } |
| 1182 | break; |
| 1183 | } |
| 1184 | case kMipsFloat32Max: { |
| 1185 | // (b < a) ? a : b |
| 1186 | if (IsMipsArchVariant(kMips32r6)) { |
| 1187 | __ cmp_s(OLT, i.OutputDoubleRegister(), i.InputDoubleRegister(1), |
| 1188 | i.InputDoubleRegister(0)); |
| 1189 | __ sel_s(i.OutputDoubleRegister(), i.InputDoubleRegister(1), |
| 1190 | i.InputDoubleRegister(0)); |
| 1191 | } else { |
| 1192 | __ c_s(OLT, i.InputDoubleRegister(0), i.InputDoubleRegister(1)); |
| 1193 | // Left operand is result, passthrough if false. |
| 1194 | __ movt_s(i.OutputDoubleRegister(), i.InputDoubleRegister(1)); |
| 1195 | } |
| 1196 | break; |
| 1197 | } |
| 1198 | case kMipsFloat32Min: { |
| 1199 | // (a < b) ? a : b |
| 1200 | if (IsMipsArchVariant(kMips32r6)) { |
| 1201 | __ cmp_s(OLT, i.OutputDoubleRegister(), i.InputDoubleRegister(0), |
| 1202 | i.InputDoubleRegister(1)); |
| 1203 | __ sel_s(i.OutputDoubleRegister(), i.InputDoubleRegister(1), |
| 1204 | i.InputDoubleRegister(0)); |
| 1205 | } else { |
| 1206 | __ c_s(OLT, i.InputDoubleRegister(1), i.InputDoubleRegister(0)); |
| 1207 | // Right operand is result, passthrough if false. |
| 1208 | __ movt_s(i.OutputDoubleRegister(), i.InputDoubleRegister(1)); |
| 1209 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1210 | break; |
| 1211 | } |
| 1212 | case kMipsCvtSD: { |
| 1213 | __ cvt_s_d(i.OutputSingleRegister(), i.InputDoubleRegister(0)); |
| 1214 | break; |
| 1215 | } |
| 1216 | case kMipsCvtDS: { |
| 1217 | __ cvt_d_s(i.OutputDoubleRegister(), i.InputSingleRegister(0)); |
| 1218 | break; |
| 1219 | } |
| 1220 | case kMipsCvtDW: { |
| 1221 | FPURegister scratch = kScratchDoubleReg; |
| 1222 | __ mtc1(i.InputRegister(0), scratch); |
| 1223 | __ cvt_d_w(i.OutputDoubleRegister(), scratch); |
| 1224 | break; |
| 1225 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1226 | case kMipsCvtSW: { |
| 1227 | FPURegister scratch = kScratchDoubleReg; |
| 1228 | __ mtc1(i.InputRegister(0), scratch); |
| 1229 | __ cvt_s_w(i.OutputDoubleRegister(), scratch); |
| 1230 | break; |
| 1231 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1232 | case kMipsCvtSUw: { |
| 1233 | FPURegister scratch = kScratchDoubleReg; |
| 1234 | __ Cvt_d_uw(i.OutputDoubleRegister(), i.InputRegister(0), scratch); |
| 1235 | __ cvt_s_d(i.OutputDoubleRegister(), i.OutputDoubleRegister()); |
| 1236 | break; |
| 1237 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1238 | case kMipsCvtDUw: { |
| 1239 | FPURegister scratch = kScratchDoubleReg; |
| 1240 | __ Cvt_d_uw(i.OutputDoubleRegister(), i.InputRegister(0), scratch); |
| 1241 | break; |
| 1242 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1243 | case kMipsFloorWD: { |
| 1244 | FPURegister scratch = kScratchDoubleReg; |
| 1245 | __ floor_w_d(scratch, i.InputDoubleRegister(0)); |
| 1246 | __ mfc1(i.OutputRegister(), scratch); |
| 1247 | break; |
| 1248 | } |
| 1249 | case kMipsCeilWD: { |
| 1250 | FPURegister scratch = kScratchDoubleReg; |
| 1251 | __ ceil_w_d(scratch, i.InputDoubleRegister(0)); |
| 1252 | __ mfc1(i.OutputRegister(), scratch); |
| 1253 | break; |
| 1254 | } |
| 1255 | case kMipsRoundWD: { |
| 1256 | FPURegister scratch = kScratchDoubleReg; |
| 1257 | __ round_w_d(scratch, i.InputDoubleRegister(0)); |
| 1258 | __ mfc1(i.OutputRegister(), scratch); |
| 1259 | break; |
| 1260 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1261 | case kMipsTruncWD: { |
| 1262 | FPURegister scratch = kScratchDoubleReg; |
| 1263 | // Other arches use round to zero here, so we follow. |
| 1264 | __ trunc_w_d(scratch, i.InputDoubleRegister(0)); |
| 1265 | __ mfc1(i.OutputRegister(), scratch); |
| 1266 | break; |
| 1267 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1268 | case kMipsFloorWS: { |
| 1269 | FPURegister scratch = kScratchDoubleReg; |
| 1270 | __ floor_w_s(scratch, i.InputDoubleRegister(0)); |
| 1271 | __ mfc1(i.OutputRegister(), scratch); |
| 1272 | break; |
| 1273 | } |
| 1274 | case kMipsCeilWS: { |
| 1275 | FPURegister scratch = kScratchDoubleReg; |
| 1276 | __ ceil_w_s(scratch, i.InputDoubleRegister(0)); |
| 1277 | __ mfc1(i.OutputRegister(), scratch); |
| 1278 | break; |
| 1279 | } |
| 1280 | case kMipsRoundWS: { |
| 1281 | FPURegister scratch = kScratchDoubleReg; |
| 1282 | __ round_w_s(scratch, i.InputDoubleRegister(0)); |
| 1283 | __ mfc1(i.OutputRegister(), scratch); |
| 1284 | break; |
| 1285 | } |
| 1286 | case kMipsTruncWS: { |
| 1287 | FPURegister scratch = kScratchDoubleReg; |
| 1288 | __ trunc_w_s(scratch, i.InputDoubleRegister(0)); |
| 1289 | __ mfc1(i.OutputRegister(), scratch); |
| 1290 | break; |
| 1291 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1292 | case kMipsTruncUwD: { |
| 1293 | FPURegister scratch = kScratchDoubleReg; |
| 1294 | // TODO(plind): Fix wrong param order of Trunc_uw_d() macro-asm function. |
| 1295 | __ Trunc_uw_d(i.InputDoubleRegister(0), i.OutputRegister(), scratch); |
| 1296 | break; |
| 1297 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1298 | case kMipsTruncUwS: { |
| 1299 | FPURegister scratch = kScratchDoubleReg; |
| 1300 | // TODO(plind): Fix wrong param order of Trunc_uw_s() macro-asm function. |
| 1301 | __ Trunc_uw_s(i.InputDoubleRegister(0), i.OutputRegister(), scratch); |
| 1302 | break; |
| 1303 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1304 | case kMipsFloat64ExtractLowWord32: |
| 1305 | __ FmoveLow(i.OutputRegister(), i.InputDoubleRegister(0)); |
| 1306 | break; |
| 1307 | case kMipsFloat64ExtractHighWord32: |
| 1308 | __ FmoveHigh(i.OutputRegister(), i.InputDoubleRegister(0)); |
| 1309 | break; |
| 1310 | case kMipsFloat64InsertLowWord32: |
| 1311 | __ FmoveLow(i.OutputDoubleRegister(), i.InputRegister(1)); |
| 1312 | break; |
| 1313 | case kMipsFloat64InsertHighWord32: |
| 1314 | __ FmoveHigh(i.OutputDoubleRegister(), i.InputRegister(1)); |
| 1315 | break; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1316 | case kMipsFloat64SilenceNaN: { |
| 1317 | FPURegister value = i.InputDoubleRegister(0); |
| 1318 | FPURegister result = i.OutputDoubleRegister(); |
| 1319 | Register scratch0 = i.TempRegister(0); |
| 1320 | Label is_nan, not_nan; |
| 1321 | __ BranchF(NULL, &is_nan, eq, value, value); |
| 1322 | __ Branch(¬_nan); |
| 1323 | __ bind(&is_nan); |
| 1324 | __ LoadRoot(scratch0, Heap::kNanValueRootIndex); |
| 1325 | __ ldc1(result, FieldMemOperand(scratch0, HeapNumber::kValueOffset)); |
| 1326 | __ bind(¬_nan); |
| 1327 | break; |
| 1328 | } |
| 1329 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1330 | // ... more basic instructions ... |
| 1331 | |
| 1332 | case kMipsLbu: |
| 1333 | __ lbu(i.OutputRegister(), i.MemoryOperand()); |
| 1334 | break; |
| 1335 | case kMipsLb: |
| 1336 | __ lb(i.OutputRegister(), i.MemoryOperand()); |
| 1337 | break; |
| 1338 | case kMipsSb: |
| 1339 | __ sb(i.InputRegister(2), i.MemoryOperand()); |
| 1340 | break; |
| 1341 | case kMipsLhu: |
| 1342 | __ lhu(i.OutputRegister(), i.MemoryOperand()); |
| 1343 | break; |
| 1344 | case kMipsLh: |
| 1345 | __ lh(i.OutputRegister(), i.MemoryOperand()); |
| 1346 | break; |
| 1347 | case kMipsSh: |
| 1348 | __ sh(i.InputRegister(2), i.MemoryOperand()); |
| 1349 | break; |
| 1350 | case kMipsLw: |
| 1351 | __ lw(i.OutputRegister(), i.MemoryOperand()); |
| 1352 | break; |
| 1353 | case kMipsSw: |
| 1354 | __ sw(i.InputRegister(2), i.MemoryOperand()); |
| 1355 | break; |
| 1356 | case kMipsLwc1: { |
| 1357 | __ lwc1(i.OutputSingleRegister(), i.MemoryOperand()); |
| 1358 | break; |
| 1359 | } |
| 1360 | case kMipsSwc1: { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1361 | size_t index = 0; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1362 | MemOperand operand = i.MemoryOperand(&index); |
| 1363 | __ swc1(i.InputSingleRegister(index), operand); |
| 1364 | break; |
| 1365 | } |
| 1366 | case kMipsLdc1: |
| 1367 | __ ldc1(i.OutputDoubleRegister(), i.MemoryOperand()); |
| 1368 | break; |
| 1369 | case kMipsSdc1: |
| 1370 | __ sdc1(i.InputDoubleRegister(2), i.MemoryOperand()); |
| 1371 | break; |
| 1372 | case kMipsPush: |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1373 | if (instr->InputAt(0)->IsFPRegister()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1374 | __ sdc1(i.InputDoubleRegister(0), MemOperand(sp, -kDoubleSize)); |
| 1375 | __ Subu(sp, sp, Operand(kDoubleSize)); |
| 1376 | frame_access_state()->IncreaseSPDelta(kDoubleSize / kPointerSize); |
| 1377 | } else { |
| 1378 | __ Push(i.InputRegister(0)); |
| 1379 | frame_access_state()->IncreaseSPDelta(1); |
| 1380 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1381 | break; |
| 1382 | case kMipsStackClaim: { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1383 | __ Subu(sp, sp, Operand(i.InputInt32(0))); |
| 1384 | frame_access_state()->IncreaseSPDelta(i.InputInt32(0) / kPointerSize); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1385 | break; |
| 1386 | } |
| 1387 | case kMipsStoreToStackSlot: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1388 | if (instr->InputAt(0)->IsFPRegister()) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1389 | LocationOperand* op = LocationOperand::cast(instr->InputAt(0)); |
| 1390 | if (op->representation() == MachineRepresentation::kFloat64) { |
| 1391 | __ sdc1(i.InputDoubleRegister(0), MemOperand(sp, i.InputInt32(1))); |
| 1392 | } else { |
| 1393 | DCHECK_EQ(MachineRepresentation::kFloat32, op->representation()); |
| 1394 | __ swc1(i.InputSingleRegister(0), MemOperand(sp, i.InputInt32(1))); |
| 1395 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1396 | } else { |
| 1397 | __ sw(i.InputRegister(0), MemOperand(sp, i.InputInt32(1))); |
| 1398 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1399 | break; |
| 1400 | } |
| 1401 | case kCheckedLoadInt8: |
| 1402 | ASSEMBLE_CHECKED_LOAD_INTEGER(lb); |
| 1403 | break; |
| 1404 | case kCheckedLoadUint8: |
| 1405 | ASSEMBLE_CHECKED_LOAD_INTEGER(lbu); |
| 1406 | break; |
| 1407 | case kCheckedLoadInt16: |
| 1408 | ASSEMBLE_CHECKED_LOAD_INTEGER(lh); |
| 1409 | break; |
| 1410 | case kCheckedLoadUint16: |
| 1411 | ASSEMBLE_CHECKED_LOAD_INTEGER(lhu); |
| 1412 | break; |
| 1413 | case kCheckedLoadWord32: |
| 1414 | ASSEMBLE_CHECKED_LOAD_INTEGER(lw); |
| 1415 | break; |
| 1416 | case kCheckedLoadFloat32: |
| 1417 | ASSEMBLE_CHECKED_LOAD_FLOAT(Single, lwc1); |
| 1418 | break; |
| 1419 | case kCheckedLoadFloat64: |
| 1420 | ASSEMBLE_CHECKED_LOAD_FLOAT(Double, ldc1); |
| 1421 | break; |
| 1422 | case kCheckedStoreWord8: |
| 1423 | ASSEMBLE_CHECKED_STORE_INTEGER(sb); |
| 1424 | break; |
| 1425 | case kCheckedStoreWord16: |
| 1426 | ASSEMBLE_CHECKED_STORE_INTEGER(sh); |
| 1427 | break; |
| 1428 | case kCheckedStoreWord32: |
| 1429 | ASSEMBLE_CHECKED_STORE_INTEGER(sw); |
| 1430 | break; |
| 1431 | case kCheckedStoreFloat32: |
| 1432 | ASSEMBLE_CHECKED_STORE_FLOAT(Single, swc1); |
| 1433 | break; |
| 1434 | case kCheckedStoreFloat64: |
| 1435 | ASSEMBLE_CHECKED_STORE_FLOAT(Double, sdc1); |
| 1436 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1437 | case kCheckedLoadWord64: |
| 1438 | case kCheckedStoreWord64: |
| 1439 | UNREACHABLE(); // currently unsupported checked int64 load/store. |
| 1440 | break; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1441 | case kAtomicLoadInt8: |
| 1442 | ASSEMBLE_ATOMIC_LOAD_INTEGER(lb); |
| 1443 | break; |
| 1444 | case kAtomicLoadUint8: |
| 1445 | ASSEMBLE_ATOMIC_LOAD_INTEGER(lbu); |
| 1446 | break; |
| 1447 | case kAtomicLoadInt16: |
| 1448 | ASSEMBLE_ATOMIC_LOAD_INTEGER(lh); |
| 1449 | break; |
| 1450 | case kAtomicLoadUint16: |
| 1451 | ASSEMBLE_ATOMIC_LOAD_INTEGER(lhu); |
| 1452 | break; |
| 1453 | case kAtomicLoadWord32: |
| 1454 | ASSEMBLE_ATOMIC_LOAD_INTEGER(lw); |
| 1455 | break; |
| 1456 | case kAtomicStoreWord8: |
| 1457 | ASSEMBLE_ATOMIC_STORE_INTEGER(sb); |
| 1458 | break; |
| 1459 | case kAtomicStoreWord16: |
| 1460 | ASSEMBLE_ATOMIC_STORE_INTEGER(sh); |
| 1461 | break; |
| 1462 | case kAtomicStoreWord32: |
| 1463 | ASSEMBLE_ATOMIC_STORE_INTEGER(sw); |
| 1464 | break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1465 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1466 | return kSuccess; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1467 | } // NOLINT(readability/fn_size) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1468 | |
| 1469 | |
| 1470 | #define UNSUPPORTED_COND(opcode, condition) \ |
| 1471 | OFStream out(stdout); \ |
| 1472 | out << "Unsupported " << #opcode << " condition: \"" << condition << "\""; \ |
| 1473 | UNIMPLEMENTED(); |
| 1474 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1475 | static bool convertCondition(FlagsCondition condition, Condition& cc) { |
| 1476 | switch (condition) { |
| 1477 | case kEqual: |
| 1478 | cc = eq; |
| 1479 | return true; |
| 1480 | case kNotEqual: |
| 1481 | cc = ne; |
| 1482 | return true; |
| 1483 | case kUnsignedLessThan: |
| 1484 | cc = lt; |
| 1485 | return true; |
| 1486 | case kUnsignedGreaterThanOrEqual: |
| 1487 | cc = uge; |
| 1488 | return true; |
| 1489 | case kUnsignedLessThanOrEqual: |
| 1490 | cc = le; |
| 1491 | return true; |
| 1492 | case kUnsignedGreaterThan: |
| 1493 | cc = ugt; |
| 1494 | return true; |
| 1495 | default: |
| 1496 | break; |
| 1497 | } |
| 1498 | return false; |
| 1499 | } |
| 1500 | |
| 1501 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1502 | // Assembles branches after an instruction. |
| 1503 | void CodeGenerator::AssembleArchBranch(Instruction* instr, BranchInfo* branch) { |
| 1504 | MipsOperandConverter i(this, instr); |
| 1505 | Label* tlabel = branch->true_label; |
| 1506 | Label* flabel = branch->false_label; |
| 1507 | Condition cc = kNoCondition; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1508 | // MIPS does not have condition code flags, so compare and branch are |
| 1509 | // implemented differently than on the other arch's. The compare operations |
| 1510 | // emit mips pseudo-instructions, which are handled here by branch |
| 1511 | // instructions that do the actual comparison. Essential that the input |
| 1512 | // registers to compare pseudo-op are not modified before this branch op, as |
| 1513 | // they are tested here. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1514 | |
| 1515 | if (instr->arch_opcode() == kMipsTst) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1516 | cc = FlagsConditionToConditionTst(branch->condition); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1517 | __ And(at, i.InputRegister(0), i.InputOperand(1)); |
| 1518 | __ Branch(tlabel, cc, at, Operand(zero_reg)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1519 | } else if (instr->arch_opcode() == kMipsAddOvf) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1520 | switch (branch->condition) { |
| 1521 | case kOverflow: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1522 | __ AddBranchOvf(i.OutputRegister(), i.InputRegister(0), |
| 1523 | i.InputOperand(1), tlabel, flabel); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1524 | break; |
| 1525 | case kNotOverflow: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1526 | __ AddBranchOvf(i.OutputRegister(), i.InputRegister(0), |
| 1527 | i.InputOperand(1), flabel, tlabel); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1528 | break; |
| 1529 | default: |
| 1530 | UNSUPPORTED_COND(kMipsAddOvf, branch->condition); |
| 1531 | break; |
| 1532 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1533 | } else if (instr->arch_opcode() == kMipsSubOvf) { |
| 1534 | switch (branch->condition) { |
| 1535 | case kOverflow: |
| 1536 | __ SubBranchOvf(i.OutputRegister(), i.InputRegister(0), |
| 1537 | i.InputOperand(1), tlabel, flabel); |
| 1538 | break; |
| 1539 | case kNotOverflow: |
| 1540 | __ SubBranchOvf(i.OutputRegister(), i.InputRegister(0), |
| 1541 | i.InputOperand(1), flabel, tlabel); |
| 1542 | break; |
| 1543 | default: |
| 1544 | UNSUPPORTED_COND(kMipsAddOvf, branch->condition); |
| 1545 | break; |
| 1546 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1547 | } else if (instr->arch_opcode() == kMipsCmp) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1548 | cc = FlagsConditionToConditionCmp(branch->condition); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1549 | __ Branch(tlabel, cc, i.InputRegister(0), i.InputOperand(1)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1550 | } else if (instr->arch_opcode() == kMipsCmpS) { |
| 1551 | if (!convertCondition(branch->condition, cc)) { |
| 1552 | UNSUPPORTED_COND(kMips64CmpS, branch->condition); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1553 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1554 | FPURegister left = i.InputOrZeroSingleRegister(0); |
| 1555 | FPURegister right = i.InputOrZeroSingleRegister(1); |
| 1556 | if ((left.is(kDoubleRegZero) || right.is(kDoubleRegZero)) && |
| 1557 | !__ IsDoubleZeroRegSet()) { |
| 1558 | __ Move(kDoubleRegZero, 0.0); |
| 1559 | } |
| 1560 | __ BranchF32(tlabel, nullptr, cc, left, right); |
| 1561 | } else if (instr->arch_opcode() == kMipsCmpD) { |
| 1562 | if (!convertCondition(branch->condition, cc)) { |
| 1563 | UNSUPPORTED_COND(kMips64CmpD, branch->condition); |
| 1564 | } |
| 1565 | FPURegister left = i.InputOrZeroDoubleRegister(0); |
| 1566 | FPURegister right = i.InputOrZeroDoubleRegister(1); |
| 1567 | if ((left.is(kDoubleRegZero) || right.is(kDoubleRegZero)) && |
| 1568 | !__ IsDoubleZeroRegSet()) { |
| 1569 | __ Move(kDoubleRegZero, 0.0); |
| 1570 | } |
| 1571 | __ BranchF64(tlabel, nullptr, cc, left, right); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1572 | } else { |
| 1573 | PrintF("AssembleArchBranch Unimplemented arch_opcode: %d\n", |
| 1574 | instr->arch_opcode()); |
| 1575 | UNIMPLEMENTED(); |
| 1576 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1577 | if (!branch->fallthru) __ Branch(flabel); // no fallthru to flabel. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1578 | } |
| 1579 | |
| 1580 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1581 | void CodeGenerator::AssembleArchJump(RpoNumber target) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1582 | if (!IsNextInAssemblyOrder(target)) __ Branch(GetLabel(target)); |
| 1583 | } |
| 1584 | |
| 1585 | |
| 1586 | // Assembles boolean materializations after an instruction. |
| 1587 | void CodeGenerator::AssembleArchBoolean(Instruction* instr, |
| 1588 | FlagsCondition condition) { |
| 1589 | MipsOperandConverter i(this, instr); |
| 1590 | Label done; |
| 1591 | |
| 1592 | // Materialize a full 32-bit 1 or 0 value. The result register is always the |
| 1593 | // last output of the instruction. |
| 1594 | Label false_value; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1595 | DCHECK_NE(0u, instr->OutputCount()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1596 | Register result = i.OutputRegister(instr->OutputCount() - 1); |
| 1597 | Condition cc = kNoCondition; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1598 | // MIPS does not have condition code flags, so compare and branch are |
| 1599 | // implemented differently than on the other arch's. The compare operations |
| 1600 | // emit mips psuedo-instructions, which are checked and handled here. |
| 1601 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1602 | if (instr->arch_opcode() == kMipsTst) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1603 | cc = FlagsConditionToConditionTst(condition); |
| 1604 | __ And(kScratchReg, i.InputRegister(0), i.InputOperand(1)); |
| 1605 | __ Sltu(result, zero_reg, kScratchReg); |
| 1606 | if (cc == eq) { |
| 1607 | // Sltu produces 0 for equality, invert the result. |
| 1608 | __ xori(result, result, 1); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1609 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1610 | return; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1611 | } else if (instr->arch_opcode() == kMipsAddOvf || |
| 1612 | instr->arch_opcode() == kMipsSubOvf) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1613 | Label flabel, tlabel; |
| 1614 | switch (instr->arch_opcode()) { |
| 1615 | case kMipsAddOvf: |
| 1616 | __ AddBranchNoOvf(i.OutputRegister(), i.InputRegister(0), |
| 1617 | i.InputOperand(1), &flabel); |
| 1618 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1619 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1620 | case kMipsSubOvf: |
| 1621 | __ SubBranchNoOvf(i.OutputRegister(), i.InputRegister(0), |
| 1622 | i.InputOperand(1), &flabel); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1623 | break; |
| 1624 | default: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1625 | UNREACHABLE(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1626 | break; |
| 1627 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1628 | __ li(result, 1); |
| 1629 | __ Branch(&tlabel); |
| 1630 | __ bind(&flabel); |
| 1631 | __ li(result, 0); |
| 1632 | __ bind(&tlabel); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1633 | } else if (instr->arch_opcode() == kMipsCmp) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1634 | cc = FlagsConditionToConditionCmp(condition); |
| 1635 | switch (cc) { |
| 1636 | case eq: |
| 1637 | case ne: { |
| 1638 | Register left = i.InputRegister(0); |
| 1639 | Operand right = i.InputOperand(1); |
| 1640 | Register select; |
| 1641 | if (instr->InputAt(1)->IsImmediate() && right.immediate() == 0) { |
| 1642 | // Pass left operand if right is zero. |
| 1643 | select = left; |
| 1644 | } else { |
| 1645 | __ Subu(kScratchReg, left, right); |
| 1646 | select = kScratchReg; |
| 1647 | } |
| 1648 | __ Sltu(result, zero_reg, select); |
| 1649 | if (cc == eq) { |
| 1650 | // Sltu produces 0 for equality, invert the result. |
| 1651 | __ xori(result, result, 1); |
| 1652 | } |
| 1653 | } break; |
| 1654 | case lt: |
| 1655 | case ge: { |
| 1656 | Register left = i.InputRegister(0); |
| 1657 | Operand right = i.InputOperand(1); |
| 1658 | __ Slt(result, left, right); |
| 1659 | if (cc == ge) { |
| 1660 | __ xori(result, result, 1); |
| 1661 | } |
| 1662 | } break; |
| 1663 | case gt: |
| 1664 | case le: { |
| 1665 | Register left = i.InputRegister(1); |
| 1666 | Operand right = i.InputOperand(0); |
| 1667 | __ Slt(result, left, right); |
| 1668 | if (cc == le) { |
| 1669 | __ xori(result, result, 1); |
| 1670 | } |
| 1671 | } break; |
| 1672 | case lo: |
| 1673 | case hs: { |
| 1674 | Register left = i.InputRegister(0); |
| 1675 | Operand right = i.InputOperand(1); |
| 1676 | __ Sltu(result, left, right); |
| 1677 | if (cc == hs) { |
| 1678 | __ xori(result, result, 1); |
| 1679 | } |
| 1680 | } break; |
| 1681 | case hi: |
| 1682 | case ls: { |
| 1683 | Register left = i.InputRegister(1); |
| 1684 | Operand right = i.InputOperand(0); |
| 1685 | __ Sltu(result, left, right); |
| 1686 | if (cc == ls) { |
| 1687 | __ xori(result, result, 1); |
| 1688 | } |
| 1689 | } break; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1690 | default: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1691 | UNREACHABLE(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1692 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1693 | return; |
| 1694 | } else if (instr->arch_opcode() == kMipsCmpD || |
| 1695 | instr->arch_opcode() == kMipsCmpS) { |
| 1696 | FPURegister left = i.InputOrZeroDoubleRegister(0); |
| 1697 | FPURegister right = i.InputOrZeroDoubleRegister(1); |
| 1698 | if ((left.is(kDoubleRegZero) || right.is(kDoubleRegZero)) && |
| 1699 | !__ IsDoubleZeroRegSet()) { |
| 1700 | __ Move(kDoubleRegZero, 0.0); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1701 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1702 | bool predicate; |
| 1703 | FPUCondition cc = FlagsConditionToConditionCmpFPU(predicate, condition); |
| 1704 | if (!IsMipsArchVariant(kMips32r6)) { |
| 1705 | __ li(result, Operand(1)); |
| 1706 | if (instr->arch_opcode() == kMipsCmpD) { |
| 1707 | __ c(cc, D, left, right); |
| 1708 | } else { |
| 1709 | DCHECK(instr->arch_opcode() == kMipsCmpS); |
| 1710 | __ c(cc, S, left, right); |
| 1711 | } |
| 1712 | if (predicate) { |
| 1713 | __ Movf(result, zero_reg); |
| 1714 | } else { |
| 1715 | __ Movt(result, zero_reg); |
| 1716 | } |
| 1717 | } else { |
| 1718 | if (instr->arch_opcode() == kMipsCmpD) { |
| 1719 | __ cmp(cc, L, kDoubleCompareReg, left, right); |
| 1720 | } else { |
| 1721 | DCHECK(instr->arch_opcode() == kMipsCmpS); |
| 1722 | __ cmp(cc, W, kDoubleCompareReg, left, right); |
| 1723 | } |
| 1724 | __ mfc1(result, kDoubleCompareReg); |
| 1725 | __ andi(result, result, 1); // Cmp returns all 1's/0's, use only LSB. |
| 1726 | if (!predicate) // Toggle result for not equal. |
| 1727 | __ xori(result, result, 1); |
| 1728 | } |
| 1729 | return; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1730 | } else { |
| 1731 | PrintF("AssembleArchBranch Unimplemented arch_opcode is : %d\n", |
| 1732 | instr->arch_opcode()); |
| 1733 | TRACE_UNIMPL(); |
| 1734 | UNIMPLEMENTED(); |
| 1735 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1736 | } |
| 1737 | |
| 1738 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1739 | void CodeGenerator::AssembleArchLookupSwitch(Instruction* instr) { |
| 1740 | MipsOperandConverter i(this, instr); |
| 1741 | Register input = i.InputRegister(0); |
| 1742 | for (size_t index = 2; index < instr->InputCount(); index += 2) { |
| 1743 | __ li(at, Operand(i.InputInt32(index + 0))); |
| 1744 | __ beq(input, at, GetLabel(i.InputRpo(index + 1))); |
| 1745 | } |
| 1746 | __ nop(); // Branch delay slot of the last beq. |
| 1747 | AssembleArchJump(i.InputRpo(1)); |
| 1748 | } |
| 1749 | |
| 1750 | |
| 1751 | void CodeGenerator::AssembleArchTableSwitch(Instruction* instr) { |
| 1752 | MipsOperandConverter i(this, instr); |
| 1753 | Register input = i.InputRegister(0); |
| 1754 | size_t const case_count = instr->InputCount() - 2; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1755 | __ Branch(GetLabel(i.InputRpo(1)), hs, input, Operand(case_count)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1756 | __ GenerateSwitchTable(input, case_count, [&i, this](size_t index) { |
| 1757 | return GetLabel(i.InputRpo(index + 2)); |
| 1758 | }); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1759 | } |
| 1760 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1761 | CodeGenerator::CodeGenResult CodeGenerator::AssembleDeoptimizerCall( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1762 | int deoptimization_id, Deoptimizer::BailoutType bailout_type) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1763 | Address deopt_entry = Deoptimizer::GetDeoptimizationEntry( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1764 | isolate(), deoptimization_id, bailout_type); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1765 | if (deopt_entry == nullptr) return kTooManyDeoptimizationBailouts; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1766 | __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1767 | return kSuccess; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1768 | } |
| 1769 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1770 | void CodeGenerator::FinishFrame(Frame* frame) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1771 | CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1772 | |
| 1773 | const RegList saves_fpu = descriptor->CalleeSavedFPRegisters(); |
| 1774 | if (saves_fpu != 0) { |
| 1775 | frame->AlignSavedCalleeRegisterSlots(); |
| 1776 | } |
| 1777 | |
| 1778 | if (saves_fpu != 0) { |
| 1779 | int count = base::bits::CountPopulation32(saves_fpu); |
| 1780 | DCHECK(kNumCalleeSavedFPU == count); |
| 1781 | frame->AllocateSavedCalleeRegisterSlots(count * |
| 1782 | (kDoubleSize / kPointerSize)); |
| 1783 | } |
| 1784 | |
| 1785 | const RegList saves = descriptor->CalleeSavedRegisters(); |
| 1786 | if (saves != 0) { |
| 1787 | int count = base::bits::CountPopulation32(saves); |
| 1788 | DCHECK(kNumCalleeSaved == count + 1); |
| 1789 | frame->AllocateSavedCalleeRegisterSlots(count); |
| 1790 | } |
| 1791 | } |
| 1792 | |
| 1793 | void CodeGenerator::AssembleConstructFrame() { |
| 1794 | CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1795 | if (frame_access_state()->has_frame()) { |
| 1796 | if (descriptor->IsCFunctionCall()) { |
| 1797 | __ Push(ra, fp); |
| 1798 | __ mov(fp, sp); |
| 1799 | } else if (descriptor->IsJSFunctionCall()) { |
| 1800 | __ Prologue(this->info()->GeneratePreagedPrologue()); |
| 1801 | } else { |
| 1802 | __ StubPrologue(info()->GetOutputStackFrameType()); |
| 1803 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1804 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1805 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1806 | int shrink_slots = frame()->GetSpillSlotCount(); |
| 1807 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1808 | if (info()->is_osr()) { |
| 1809 | // TurboFan OSR-compiled functions cannot be entered directly. |
| 1810 | __ Abort(kShouldNotDirectlyEnterOsrFunction); |
| 1811 | |
| 1812 | // Unoptimized code jumps directly to this entrypoint while the unoptimized |
| 1813 | // frame is still on the stack. Optimized code uses OSR values directly from |
| 1814 | // the unoptimized frame. Thus, all that needs to be done is to allocate the |
| 1815 | // remaining stack slots. |
| 1816 | if (FLAG_code_comments) __ RecordComment("-- OSR entrypoint --"); |
| 1817 | osr_pc_offset_ = __ pc_offset(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1818 | shrink_slots -= OsrHelper(info()).UnoptimizedFrameSlots(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1819 | } |
| 1820 | |
| 1821 | const RegList saves_fpu = descriptor->CalleeSavedFPRegisters(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1822 | if (shrink_slots > 0) { |
| 1823 | __ Subu(sp, sp, Operand(shrink_slots * kPointerSize)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1824 | } |
| 1825 | |
| 1826 | // Save callee-saved FPU registers. |
| 1827 | if (saves_fpu != 0) { |
| 1828 | __ MultiPushFPU(saves_fpu); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1829 | } |
| 1830 | |
| 1831 | const RegList saves = descriptor->CalleeSavedRegisters(); |
| 1832 | if (saves != 0) { |
| 1833 | // Save callee-saved registers. |
| 1834 | __ MultiPush(saves); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1835 | DCHECK(kNumCalleeSaved == base::bits::CountPopulation32(saves) + 1); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1836 | } |
| 1837 | } |
| 1838 | |
| 1839 | |
| 1840 | void CodeGenerator::AssembleReturn() { |
| 1841 | CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1842 | int pop_count = static_cast<int>(descriptor->StackParameterCount()); |
| 1843 | |
| 1844 | // Restore GP registers. |
| 1845 | const RegList saves = descriptor->CalleeSavedRegisters(); |
| 1846 | if (saves != 0) { |
| 1847 | __ MultiPop(saves); |
| 1848 | } |
| 1849 | |
| 1850 | // Restore FPU registers. |
| 1851 | const RegList saves_fpu = descriptor->CalleeSavedFPRegisters(); |
| 1852 | if (saves_fpu != 0) { |
| 1853 | __ MultiPopFPU(saves_fpu); |
| 1854 | } |
| 1855 | |
| 1856 | if (descriptor->IsCFunctionCall()) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1857 | AssembleDeconstructFrame(); |
| 1858 | } else if (frame_access_state()->has_frame()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1859 | // Canonicalize JSFunction return sites for now. |
| 1860 | if (return_label_.is_bound()) { |
| 1861 | __ Branch(&return_label_); |
| 1862 | return; |
| 1863 | } else { |
| 1864 | __ bind(&return_label_); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1865 | AssembleDeconstructFrame(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1866 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1867 | } |
| 1868 | if (pop_count != 0) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1869 | __ DropAndRet(pop_count); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1870 | } else { |
| 1871 | __ Ret(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1872 | } |
| 1873 | } |
| 1874 | |
| 1875 | |
| 1876 | void CodeGenerator::AssembleMove(InstructionOperand* source, |
| 1877 | InstructionOperand* destination) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1878 | MipsOperandConverter g(this, nullptr); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1879 | // Dispatch on the source and destination operand kinds. Not all |
| 1880 | // combinations are possible. |
| 1881 | if (source->IsRegister()) { |
| 1882 | DCHECK(destination->IsRegister() || destination->IsStackSlot()); |
| 1883 | Register src = g.ToRegister(source); |
| 1884 | if (destination->IsRegister()) { |
| 1885 | __ mov(g.ToRegister(destination), src); |
| 1886 | } else { |
| 1887 | __ sw(src, g.ToMemOperand(destination)); |
| 1888 | } |
| 1889 | } else if (source->IsStackSlot()) { |
| 1890 | DCHECK(destination->IsRegister() || destination->IsStackSlot()); |
| 1891 | MemOperand src = g.ToMemOperand(source); |
| 1892 | if (destination->IsRegister()) { |
| 1893 | __ lw(g.ToRegister(destination), src); |
| 1894 | } else { |
| 1895 | Register temp = kScratchReg; |
| 1896 | __ lw(temp, src); |
| 1897 | __ sw(temp, g.ToMemOperand(destination)); |
| 1898 | } |
| 1899 | } else if (source->IsConstant()) { |
| 1900 | Constant src = g.ToConstant(source); |
| 1901 | if (destination->IsRegister() || destination->IsStackSlot()) { |
| 1902 | Register dst = |
| 1903 | destination->IsRegister() ? g.ToRegister(destination) : kScratchReg; |
| 1904 | switch (src.type()) { |
| 1905 | case Constant::kInt32: |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1906 | if (src.rmode() == RelocInfo::WASM_MEMORY_REFERENCE || |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1907 | src.rmode() == RelocInfo::WASM_GLOBAL_REFERENCE || |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1908 | src.rmode() == RelocInfo::WASM_MEMORY_SIZE_REFERENCE) { |
| 1909 | __ li(dst, Operand(src.ToInt32(), src.rmode())); |
| 1910 | } else { |
| 1911 | __ li(dst, Operand(src.ToInt32())); |
| 1912 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1913 | break; |
| 1914 | case Constant::kFloat32: |
| 1915 | __ li(dst, isolate()->factory()->NewNumber(src.ToFloat32(), TENURED)); |
| 1916 | break; |
| 1917 | case Constant::kInt64: |
| 1918 | UNREACHABLE(); |
| 1919 | break; |
| 1920 | case Constant::kFloat64: |
| 1921 | __ li(dst, isolate()->factory()->NewNumber(src.ToFloat64(), TENURED)); |
| 1922 | break; |
| 1923 | case Constant::kExternalReference: |
| 1924 | __ li(dst, Operand(src.ToExternalReference())); |
| 1925 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1926 | case Constant::kHeapObject: { |
| 1927 | Handle<HeapObject> src_object = src.ToHeapObject(); |
| 1928 | Heap::RootListIndex index; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1929 | int slot; |
| 1930 | if (IsMaterializableFromFrame(src_object, &slot)) { |
| 1931 | __ lw(dst, g.SlotToMemOperand(slot)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1932 | } else if (IsMaterializableFromRoot(src_object, &index)) { |
| 1933 | __ LoadRoot(dst, index); |
| 1934 | } else { |
| 1935 | __ li(dst, src_object); |
| 1936 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1937 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1938 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1939 | case Constant::kRpoNumber: |
| 1940 | UNREACHABLE(); // TODO(titzer): loading RPO numbers on mips. |
| 1941 | break; |
| 1942 | } |
| 1943 | if (destination->IsStackSlot()) __ sw(dst, g.ToMemOperand(destination)); |
| 1944 | } else if (src.type() == Constant::kFloat32) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1945 | if (destination->IsFPStackSlot()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1946 | MemOperand dst = g.ToMemOperand(destination); |
| 1947 | __ li(at, Operand(bit_cast<int32_t>(src.ToFloat32()))); |
| 1948 | __ sw(at, dst); |
| 1949 | } else { |
| 1950 | FloatRegister dst = g.ToSingleRegister(destination); |
| 1951 | __ Move(dst, src.ToFloat32()); |
| 1952 | } |
| 1953 | } else { |
| 1954 | DCHECK_EQ(Constant::kFloat64, src.type()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1955 | DoubleRegister dst = destination->IsFPRegister() |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1956 | ? g.ToDoubleRegister(destination) |
| 1957 | : kScratchDoubleReg; |
| 1958 | __ Move(dst, src.ToFloat64()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1959 | if (destination->IsFPStackSlot()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1960 | __ sdc1(dst, g.ToMemOperand(destination)); |
| 1961 | } |
| 1962 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1963 | } else if (source->IsFPRegister()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1964 | FPURegister src = g.ToDoubleRegister(source); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1965 | if (destination->IsFPRegister()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1966 | FPURegister dst = g.ToDoubleRegister(destination); |
| 1967 | __ Move(dst, src); |
| 1968 | } else { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1969 | DCHECK(destination->IsFPStackSlot()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1970 | __ sdc1(src, g.ToMemOperand(destination)); |
| 1971 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1972 | } else if (source->IsFPStackSlot()) { |
| 1973 | DCHECK(destination->IsFPRegister() || destination->IsFPStackSlot()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1974 | MemOperand src = g.ToMemOperand(source); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1975 | if (destination->IsFPRegister()) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1976 | LocationOperand* op = LocationOperand::cast(source); |
| 1977 | if (op->representation() == MachineRepresentation::kFloat64) { |
| 1978 | __ ldc1(g.ToDoubleRegister(destination), src); |
| 1979 | } else { |
| 1980 | DCHECK_EQ(MachineRepresentation::kFloat32, op->representation()); |
| 1981 | __ lwc1(g.ToDoubleRegister(destination), src); |
| 1982 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1983 | } else { |
| 1984 | FPURegister temp = kScratchDoubleReg; |
| 1985 | __ ldc1(temp, src); |
| 1986 | __ sdc1(temp, g.ToMemOperand(destination)); |
| 1987 | } |
| 1988 | } else { |
| 1989 | UNREACHABLE(); |
| 1990 | } |
| 1991 | } |
| 1992 | |
| 1993 | |
| 1994 | void CodeGenerator::AssembleSwap(InstructionOperand* source, |
| 1995 | InstructionOperand* destination) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1996 | MipsOperandConverter g(this, nullptr); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1997 | // Dispatch on the source and destination operand kinds. Not all |
| 1998 | // combinations are possible. |
| 1999 | if (source->IsRegister()) { |
| 2000 | // Register-register. |
| 2001 | Register temp = kScratchReg; |
| 2002 | Register src = g.ToRegister(source); |
| 2003 | if (destination->IsRegister()) { |
| 2004 | Register dst = g.ToRegister(destination); |
| 2005 | __ Move(temp, src); |
| 2006 | __ Move(src, dst); |
| 2007 | __ Move(dst, temp); |
| 2008 | } else { |
| 2009 | DCHECK(destination->IsStackSlot()); |
| 2010 | MemOperand dst = g.ToMemOperand(destination); |
| 2011 | __ mov(temp, src); |
| 2012 | __ lw(src, dst); |
| 2013 | __ sw(temp, dst); |
| 2014 | } |
| 2015 | } else if (source->IsStackSlot()) { |
| 2016 | DCHECK(destination->IsStackSlot()); |
| 2017 | Register temp_0 = kScratchReg; |
| 2018 | Register temp_1 = kCompareReg; |
| 2019 | MemOperand src = g.ToMemOperand(source); |
| 2020 | MemOperand dst = g.ToMemOperand(destination); |
| 2021 | __ lw(temp_0, src); |
| 2022 | __ lw(temp_1, dst); |
| 2023 | __ sw(temp_0, dst); |
| 2024 | __ sw(temp_1, src); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2025 | } else if (source->IsFPRegister()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2026 | FPURegister temp = kScratchDoubleReg; |
| 2027 | FPURegister src = g.ToDoubleRegister(source); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2028 | if (destination->IsFPRegister()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2029 | FPURegister dst = g.ToDoubleRegister(destination); |
| 2030 | __ Move(temp, src); |
| 2031 | __ Move(src, dst); |
| 2032 | __ Move(dst, temp); |
| 2033 | } else { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2034 | DCHECK(destination->IsFPStackSlot()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2035 | MemOperand dst = g.ToMemOperand(destination); |
| 2036 | __ Move(temp, src); |
| 2037 | __ ldc1(src, dst); |
| 2038 | __ sdc1(temp, dst); |
| 2039 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2040 | } else if (source->IsFPStackSlot()) { |
| 2041 | DCHECK(destination->IsFPStackSlot()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2042 | Register temp_0 = kScratchReg; |
| 2043 | FPURegister temp_1 = kScratchDoubleReg; |
| 2044 | MemOperand src0 = g.ToMemOperand(source); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2045 | MemOperand src1(src0.rm(), src0.offset() + kIntSize); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2046 | MemOperand dst0 = g.ToMemOperand(destination); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2047 | MemOperand dst1(dst0.rm(), dst0.offset() + kIntSize); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2048 | __ ldc1(temp_1, dst0); // Save destination in temp_1. |
| 2049 | __ lw(temp_0, src0); // Then use temp_0 to copy source to destination. |
| 2050 | __ sw(temp_0, dst0); |
| 2051 | __ lw(temp_0, src1); |
| 2052 | __ sw(temp_0, dst1); |
| 2053 | __ sdc1(temp_1, src0); |
| 2054 | } else { |
| 2055 | // No other combinations are possible. |
| 2056 | UNREACHABLE(); |
| 2057 | } |
| 2058 | } |
| 2059 | |
| 2060 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2061 | void CodeGenerator::AssembleJumpTable(Label** targets, size_t target_count) { |
| 2062 | // On 32-bit MIPS we emit the jump tables inline. |
| 2063 | UNREACHABLE(); |
| 2064 | } |
| 2065 | |
| 2066 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2067 | void CodeGenerator::EnsureSpaceForLazyDeopt() { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2068 | if (!info()->ShouldEnsureSpaceForLazyDeopt()) { |
| 2069 | return; |
| 2070 | } |
| 2071 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2072 | int space_needed = Deoptimizer::patch_size(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2073 | // Ensure that we have enough space after the previous lazy-bailout |
| 2074 | // instruction for patching the code here. |
| 2075 | int current_pc = masm()->pc_offset(); |
| 2076 | if (current_pc < last_lazy_deopt_pc_ + space_needed) { |
| 2077 | // Block tramoline pool emission for duration of padding. |
| 2078 | v8::internal::Assembler::BlockTrampolinePoolScope block_trampoline_pool( |
| 2079 | masm()); |
| 2080 | int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; |
| 2081 | DCHECK_EQ(0, padding_size % v8::internal::Assembler::kInstrSize); |
| 2082 | while (padding_size > 0) { |
| 2083 | __ nop(); |
| 2084 | padding_size -= v8::internal::Assembler::kInstrSize; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2085 | } |
| 2086 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2087 | } |
| 2088 | |
| 2089 | #undef __ |
| 2090 | |
| 2091 | } // namespace compiler |
| 2092 | } // namespace internal |
| 2093 | } // namespace v8 |