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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_X87 | 5 #if V8_TARGET_ARCH_X87 |
| 6 | 6 |
| 7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
| 8 #include "src/base/division-by-constant.h" | 8 #include "src/base/division-by-constant.h" |
| 9 #include "src/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
| 10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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| 2014 void MacroAssembler::InvokeFunction(Handle<JSFunction> function, | 2014 void MacroAssembler::InvokeFunction(Handle<JSFunction> function, |
| 2015 const ParameterCount& expected, | 2015 const ParameterCount& expected, |
| 2016 const ParameterCount& actual, | 2016 const ParameterCount& actual, |
| 2017 InvokeFlag flag, | 2017 InvokeFlag flag, |
| 2018 const CallWrapper& call_wrapper) { | 2018 const CallWrapper& call_wrapper) { |
| 2019 LoadHeapObject(edi, function); | 2019 LoadHeapObject(edi, function); |
| 2020 InvokeFunction(edi, expected, actual, flag, call_wrapper); | 2020 InvokeFunction(edi, expected, actual, flag, call_wrapper); |
| 2021 } | 2021 } |
| 2022 | 2022 |
| 2023 | 2023 |
| 2024 void MacroAssembler::InvokeBuiltin(Builtins::JavaScript id, | 2024 void MacroAssembler::InvokeBuiltin(int native_context_index, InvokeFlag flag, |
| 2025 InvokeFlag flag, | |
| 2026 const CallWrapper& call_wrapper) { | 2025 const CallWrapper& call_wrapper) { |
| 2027 // You can't call a builtin without a valid frame. | 2026 // You can't call a builtin without a valid frame. |
| 2028 DCHECK(flag == JUMP_FUNCTION || has_frame()); | 2027 DCHECK(flag == JUMP_FUNCTION || has_frame()); |
| 2029 | 2028 |
| 2030 // Rely on the assertion to check that the number of provided | 2029 // Rely on the assertion to check that the number of provided |
| 2031 // arguments match the expected number of arguments. Fake a | 2030 // arguments match the expected number of arguments. Fake a |
| 2032 // parameter count to avoid emitting code to do the check. | 2031 // parameter count to avoid emitting code to do the check. |
| 2033 ParameterCount expected(0); | 2032 ParameterCount expected(0); |
| 2034 GetBuiltinFunction(edi, id); | 2033 GetBuiltinFunction(edi, native_context_index); |
| 2035 InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), | 2034 InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), |
| 2036 expected, expected, flag, call_wrapper); | 2035 expected, expected, flag, call_wrapper); |
| 2037 } | 2036 } |
| 2038 | 2037 |
| 2039 | 2038 |
| 2040 void MacroAssembler::GetBuiltinFunction(Register target, | 2039 void MacroAssembler::GetBuiltinFunction(Register target, |
| 2041 Builtins::JavaScript id) { | 2040 int native_context_index) { |
| 2042 // Load the JavaScript builtin function from the builtins object. | 2041 // Load the JavaScript builtin function from the builtins object. |
| 2043 mov(target, Operand(esi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); | 2042 mov(target, Operand(esi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
| 2044 mov(target, FieldOperand(target, GlobalObject::kBuiltinsOffset)); | 2043 mov(target, FieldOperand(target, GlobalObject::kNativeContextOffset)); |
| 2045 mov(target, FieldOperand(target, | 2044 mov(target, ContextOperand(target, native_context_index)); |
| 2046 JSBuiltinsObject::OffsetOfFunctionWithId(id))); | |
| 2047 } | 2045 } |
| 2048 | 2046 |
| 2049 | 2047 |
| 2050 void MacroAssembler::GetBuiltinEntry(Register target, Builtins::JavaScript id) { | 2048 void MacroAssembler::GetBuiltinEntry(Register target, |
| 2049 int native_context_index) { |
| 2051 DCHECK(!target.is(edi)); | 2050 DCHECK(!target.is(edi)); |
| 2052 // Load the JavaScript builtin function from the builtins object. | 2051 // Load the JavaScript builtin function from the builtins object. |
| 2053 GetBuiltinFunction(edi, id); | 2052 GetBuiltinFunction(edi, native_context_index); |
| 2054 // Load the code entry point from the function into the target register. | 2053 // Load the code entry point from the function into the target register. |
| 2055 mov(target, FieldOperand(edi, JSFunction::kCodeEntryOffset)); | 2054 mov(target, FieldOperand(edi, JSFunction::kCodeEntryOffset)); |
| 2056 } | 2055 } |
| 2057 | 2056 |
| 2058 | 2057 |
| 2059 void MacroAssembler::LoadContext(Register dst, int context_chain_length) { | 2058 void MacroAssembler::LoadContext(Register dst, int context_chain_length) { |
| 2060 if (context_chain_length > 0) { | 2059 if (context_chain_length > 0) { |
| 2061 // Move up the chain of contexts to the context containing the slot. | 2060 // Move up the chain of contexts to the context containing the slot. |
| 2062 mov(dst, Operand(esi, Context::SlotOffset(Context::PREVIOUS_INDEX))); | 2061 mov(dst, Operand(esi, Context::SlotOffset(Context::PREVIOUS_INDEX))); |
| 2063 for (int i = 1; i < context_chain_length; i++) { | 2062 for (int i = 1; i < context_chain_length; i++) { |
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| 3060 mov(eax, dividend); | 3059 mov(eax, dividend); |
| 3061 shr(eax, 31); | 3060 shr(eax, 31); |
| 3062 add(edx, eax); | 3061 add(edx, eax); |
| 3063 } | 3062 } |
| 3064 | 3063 |
| 3065 | 3064 |
| 3066 } // namespace internal | 3065 } // namespace internal |
| 3067 } // namespace v8 | 3066 } // namespace v8 |
| 3068 | 3067 |
| 3069 #endif // V8_TARGET_ARCH_X87 | 3068 #endif // V8_TARGET_ARCH_X87 |
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