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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 #include "src/crankshaft/mips64/lithium-codegen-mips64.h" | 5 #include "src/crankshaft/mips64/lithium-codegen-mips64.h" |
6 | 6 |
7 #include "src/code-factory.h" | 7 #include "src/code-factory.h" |
8 #include "src/code-stubs.h" | 8 #include "src/code-stubs.h" |
9 #include "src/crankshaft/hydrogen-osr.h" | 9 #include "src/crankshaft/hydrogen-osr.h" |
10 #include "src/crankshaft/mips64/lithium-gap-resolver-mips64.h" | 10 #include "src/crankshaft/mips64/lithium-gap-resolver-mips64.h" |
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2567 DCHECK(!input.is(temp)); | 2567 DCHECK(!input.is(temp)); |
2568 DCHECK(!input.is(temp2)); | 2568 DCHECK(!input.is(temp2)); |
2569 DCHECK(!temp.is(temp2)); | 2569 DCHECK(!temp.is(temp2)); |
2570 | 2570 |
2571 __ JumpIfSmi(input, is_false); | 2571 __ JumpIfSmi(input, is_false); |
2572 | 2572 |
2573 if (String::Equals(isolate()->factory()->Function_string(), class_name)) { | 2573 if (String::Equals(isolate()->factory()->Function_string(), class_name)) { |
2574 // Assuming the following assertions, we can use the same compares to test | 2574 // Assuming the following assertions, we can use the same compares to test |
2575 // for both being a function type and being in the object type range. | 2575 // for both being a function type and being in the object type range. |
2576 STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); | 2576 STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); |
2577 STATIC_ASSERT(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE == | |
2578 FIRST_JS_RECEIVER_TYPE + 1); | |
2579 STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == | 2577 STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == |
2580 LAST_JS_RECEIVER_TYPE - 1); | 2578 LAST_JS_RECEIVER_TYPE - 1); |
2581 STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); | 2579 STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
2582 | 2580 |
2583 __ GetObjectType(input, temp, temp2); | 2581 __ GetObjectType(input, temp, temp2); |
2584 __ Branch(is_false, lt, temp2, Operand(FIRST_JS_RECEIVER_TYPE)); | 2582 __ Branch(is_false, lt, temp2, Operand(FIRST_JS_RECEIVER_TYPE)); |
2585 __ Branch(is_true, eq, temp2, Operand(FIRST_JS_RECEIVER_TYPE)); | |
2586 __ Branch(is_true, eq, temp2, Operand(LAST_JS_RECEIVER_TYPE)); | 2583 __ Branch(is_true, eq, temp2, Operand(LAST_JS_RECEIVER_TYPE)); |
2587 } else { | 2584 } else { |
2588 // Faster code path to avoid two compares: subtract lower bound from the | 2585 // Faster code path to avoid two compares: subtract lower bound from the |
2589 // actual type and do a signed compare with the width of the type range. | 2586 // actual type and do a signed compare with the width of the type range. |
2590 __ GetObjectType(input, temp, temp2); | 2587 __ GetObjectType(input, temp, temp2); |
2591 __ Dsubu(temp2, temp2, Operand(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); | 2588 __ Dsubu(temp2, temp2, Operand(FIRST_JS_RECEIVER_TYPE)); |
2592 __ Branch(is_false, gt, temp2, Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE - | 2589 __ Branch(is_false, gt, temp2, Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE - |
2593 FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); | 2590 FIRST_JS_RECEIVER_TYPE)); |
2594 } | 2591 } |
2595 | 2592 |
2596 // Now we are in the FIRST-LAST_NONCALLABLE_SPEC_OBJECT_TYPE range. | 2593 // Now we are in the FIRST-LAST_NONCALLABLE_SPEC_OBJECT_TYPE range. |
2597 // Check if the constructor in the map is a function. | 2594 // Check if the constructor in the map is a function. |
2598 Register instance_type = scratch1(); | 2595 Register instance_type = scratch1(); |
2599 DCHECK(!instance_type.is(temp)); | 2596 DCHECK(!instance_type.is(temp)); |
2600 __ GetMapConstructor(temp, temp, temp2, instance_type); | 2597 __ GetMapConstructor(temp, temp, temp2, instance_type); |
2601 | 2598 |
2602 // Objects with a non-function constructor have class 'Object'. | 2599 // Objects with a non-function constructor have class 'Object'. |
2603 if (String::Equals(class_name, isolate()->factory()->Object_string())) { | 2600 if (String::Equals(class_name, isolate()->factory()->Object_string())) { |
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5873 __ Push(at, ToRegister(instr->function())); | 5870 __ Push(at, ToRegister(instr->function())); |
5874 CallRuntime(Runtime::kPushBlockContext, 2, instr); | 5871 CallRuntime(Runtime::kPushBlockContext, 2, instr); |
5875 RecordSafepoint(Safepoint::kNoLazyDeopt); | 5872 RecordSafepoint(Safepoint::kNoLazyDeopt); |
5876 } | 5873 } |
5877 | 5874 |
5878 | 5875 |
5879 #undef __ | 5876 #undef __ |
5880 | 5877 |
5881 } // namespace internal | 5878 } // namespace internal |
5882 } // namespace v8 | 5879 } // namespace v8 |
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