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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_MIPS64 | 5 #if V8_TARGET_ARCH_MIPS64 |
6 | 6 |
7 // Note on Mips implementation: | 7 // Note on Mips implementation: |
8 // | 8 // |
9 // The result_register() for mips is the 'v0' register, which is defined | 9 // The result_register() for mips is the 'v0' register, which is defined |
10 // by the ABI to contain function return values. However, the first | 10 // by the ABI to contain function return values. However, the first |
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3268 string, | 3268 string, |
3269 Operand(SeqTwoByteString::kHeaderSize - kHeapObjectTag)); | 3269 Operand(SeqTwoByteString::kHeaderSize - kHeapObjectTag)); |
3270 __ dsra(index, index, 32 - 1); | 3270 __ dsra(index, index, 32 - 1); |
3271 __ Daddu(at, at, index); | 3271 __ Daddu(at, at, index); |
3272 STATIC_ASSERT(kSmiTagSize == 1 && kSmiTag == 0); | 3272 STATIC_ASSERT(kSmiTagSize == 1 && kSmiTag == 0); |
3273 __ sh(value, MemOperand(at)); | 3273 __ sh(value, MemOperand(at)); |
3274 context()->Plug(string); | 3274 context()->Plug(string); |
3275 } | 3275 } |
3276 | 3276 |
3277 | 3277 |
3278 void FullCodeGenerator::EmitSetValueOf(CallRuntime* expr) { | |
3279 ZoneList<Expression*>* args = expr->arguments(); | |
3280 DCHECK(args->length() == 2); | |
3281 | |
3282 VisitForStackValue(args->at(0)); // Load the object. | |
3283 VisitForAccumulatorValue(args->at(1)); // Load the value. | |
3284 __ pop(a1); // v0 = value. a1 = object. | |
3285 | |
3286 Label done; | |
3287 // If the object is a smi, return the value. | |
3288 __ JumpIfSmi(a1, &done); | |
3289 | |
3290 // If the object is not a value type, return the value. | |
3291 __ GetObjectType(a1, a2, a2); | |
3292 __ Branch(&done, ne, a2, Operand(JS_VALUE_TYPE)); | |
3293 | |
3294 // Store the value. | |
3295 __ sd(v0, FieldMemOperand(a1, JSValue::kValueOffset)); | |
3296 // Update the write barrier. Save the value as it will be | |
3297 // overwritten by the write barrier code and is needed afterward. | |
3298 __ mov(a2, v0); | |
3299 __ RecordWriteField( | |
3300 a1, JSValue::kValueOffset, a2, a3, kRAHasBeenSaved, kDontSaveFPRegs); | |
3301 | |
3302 __ bind(&done); | |
3303 context()->Plug(v0); | |
3304 } | |
3305 | |
3306 | |
3307 void FullCodeGenerator::EmitToInteger(CallRuntime* expr) { | 3278 void FullCodeGenerator::EmitToInteger(CallRuntime* expr) { |
3308 ZoneList<Expression*>* args = expr->arguments(); | 3279 ZoneList<Expression*>* args = expr->arguments(); |
3309 DCHECK_EQ(1, args->length()); | 3280 DCHECK_EQ(1, args->length()); |
3310 | 3281 |
3311 // Load the argument into v0 and convert it. | 3282 // Load the argument into v0 and convert it. |
3312 VisitForAccumulatorValue(args->at(0)); | 3283 VisitForAccumulatorValue(args->at(0)); |
3313 | 3284 |
3314 // Convert the object to an integer. | 3285 // Convert the object to an integer. |
3315 Label done_convert; | 3286 Label done_convert; |
3316 __ JumpIfSmi(v0, &done_convert); | 3287 __ JumpIfSmi(v0, &done_convert); |
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4597 reinterpret_cast<uint64_t>( | 4568 reinterpret_cast<uint64_t>( |
4598 isolate->builtins()->OsrAfterStackCheck()->entry())); | 4569 isolate->builtins()->OsrAfterStackCheck()->entry())); |
4599 return OSR_AFTER_STACK_CHECK; | 4570 return OSR_AFTER_STACK_CHECK; |
4600 } | 4571 } |
4601 | 4572 |
4602 | 4573 |
4603 } // namespace internal | 4574 } // namespace internal |
4604 } // namespace v8 | 4575 } // namespace v8 |
4605 | 4576 |
4606 #endif // V8_TARGET_ARCH_MIPS64 | 4577 #endif // V8_TARGET_ARCH_MIPS64 |
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