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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/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_X64 | 7 #if V8_TARGET_ARCH_X64 |
8 | 8 |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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3224 __ j(not_equal, &non_function_constructor); | 3224 __ j(not_equal, &non_function_constructor); |
3225 | 3225 |
3226 // rax now contains the constructor function. Grab the | 3226 // rax now contains the constructor function. Grab the |
3227 // instance class name from there. | 3227 // instance class name from there. |
3228 __ movp(rax, FieldOperand(rax, JSFunction::kSharedFunctionInfoOffset)); | 3228 __ movp(rax, FieldOperand(rax, JSFunction::kSharedFunctionInfoOffset)); |
3229 __ movp(rax, FieldOperand(rax, SharedFunctionInfo::kInstanceClassNameOffset)); | 3229 __ movp(rax, FieldOperand(rax, SharedFunctionInfo::kInstanceClassNameOffset)); |
3230 __ jmp(&done); | 3230 __ jmp(&done); |
3231 | 3231 |
3232 // Functions have class 'Function'. | 3232 // Functions have class 'Function'. |
3233 __ bind(&function); | 3233 __ bind(&function); |
3234 __ Move(rax, isolate()->factory()->function_class_string()); | 3234 __ Move(rax, isolate()->factory()->Function_string()); |
3235 __ jmp(&done); | 3235 __ jmp(&done); |
3236 | 3236 |
3237 // Objects with a non-function constructor have class 'Object'. | 3237 // Objects with a non-function constructor have class 'Object'. |
3238 __ bind(&non_function_constructor); | 3238 __ bind(&non_function_constructor); |
3239 __ Move(rax, isolate()->factory()->Object_string()); | 3239 __ Move(rax, isolate()->factory()->Object_string()); |
3240 __ jmp(&done); | 3240 __ jmp(&done); |
3241 | 3241 |
3242 // Non-JS objects have class null. | 3242 // Non-JS objects have class null. |
3243 __ bind(&null); | 3243 __ bind(&null); |
3244 __ LoadRoot(rax, Heap::kNullValueRootIndex); | 3244 __ LoadRoot(rax, Heap::kNullValueRootIndex); |
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4832 DCHECK_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), | 4832 DCHECK_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), |
4833 Assembler::target_address_at(call_target_address, | 4833 Assembler::target_address_at(call_target_address, |
4834 unoptimized_code)); | 4834 unoptimized_code)); |
4835 return OSR_AFTER_STACK_CHECK; | 4835 return OSR_AFTER_STACK_CHECK; |
4836 } | 4836 } |
4837 | 4837 |
4838 | 4838 |
4839 } } // namespace v8::internal | 4839 } } // namespace v8::internal |
4840 | 4840 |
4841 #endif // V8_TARGET_ARCH_X64 | 4841 #endif // V8_TARGET_ARCH_X64 |
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