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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_IA32 | 5 #if V8_TARGET_ARCH_IA32 |
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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2049 void MacroAssembler::InvokeFunction(Handle<JSFunction> function, | 2049 void MacroAssembler::InvokeFunction(Handle<JSFunction> function, |
2050 const ParameterCount& expected, | 2050 const ParameterCount& expected, |
2051 const ParameterCount& actual, | 2051 const ParameterCount& actual, |
2052 InvokeFlag flag, | 2052 InvokeFlag flag, |
2053 const CallWrapper& call_wrapper) { | 2053 const CallWrapper& call_wrapper) { |
2054 LoadHeapObject(edi, function); | 2054 LoadHeapObject(edi, function); |
2055 InvokeFunction(edi, expected, actual, flag, call_wrapper); | 2055 InvokeFunction(edi, expected, actual, flag, call_wrapper); |
2056 } | 2056 } |
2057 | 2057 |
2058 | 2058 |
2059 void MacroAssembler::InvokeBuiltin(Builtins::JavaScript id, | 2059 void MacroAssembler::InvokeBuiltin(int native_context_index, InvokeFlag flag, |
2060 InvokeFlag flag, | |
2061 const CallWrapper& call_wrapper) { | 2060 const CallWrapper& call_wrapper) { |
2062 // You can't call a builtin without a valid frame. | 2061 // You can't call a builtin without a valid frame. |
2063 DCHECK(flag == JUMP_FUNCTION || has_frame()); | 2062 DCHECK(flag == JUMP_FUNCTION || has_frame()); |
2064 | 2063 |
2065 // Rely on the assertion to check that the number of provided | 2064 // Rely on the assertion to check that the number of provided |
2066 // arguments match the expected number of arguments. Fake a | 2065 // arguments match the expected number of arguments. Fake a |
2067 // parameter count to avoid emitting code to do the check. | 2066 // parameter count to avoid emitting code to do the check. |
2068 ParameterCount expected(0); | 2067 ParameterCount expected(0); |
2069 GetBuiltinFunction(edi, id); | 2068 GetBuiltinFunction(edi, native_context_index); |
2070 InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), | 2069 InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), |
2071 expected, expected, flag, call_wrapper); | 2070 expected, expected, flag, call_wrapper); |
2072 } | 2071 } |
2073 | 2072 |
2074 | 2073 |
2075 void MacroAssembler::GetBuiltinFunction(Register target, | 2074 void MacroAssembler::GetBuiltinFunction(Register target, |
2076 Builtins::JavaScript id) { | 2075 int native_context_index) { |
2077 // Load the JavaScript builtin function from the builtins object. | 2076 // Load the JavaScript builtin function from the builtins object. |
2078 mov(target, Operand(esi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); | 2077 mov(target, GlobalObjectOperand()); |
2079 mov(target, FieldOperand(target, GlobalObject::kBuiltinsOffset)); | 2078 mov(target, FieldOperand(target, GlobalObject::kNativeContextOffset)); |
2080 mov(target, FieldOperand(target, | 2079 mov(target, ContextOperand(target, native_context_index)); |
2081 JSBuiltinsObject::OffsetOfFunctionWithId(id))); | |
2082 } | 2080 } |
2083 | 2081 |
2084 | 2082 |
2085 void MacroAssembler::GetBuiltinEntry(Register target, Builtins::JavaScript id) { | 2083 void MacroAssembler::GetBuiltinEntry(Register target, |
| 2084 int native_context_index) { |
2086 DCHECK(!target.is(edi)); | 2085 DCHECK(!target.is(edi)); |
2087 // Load the JavaScript builtin function from the builtins object. | 2086 // Load the JavaScript builtin function from the builtins object. |
2088 GetBuiltinFunction(edi, id); | 2087 GetBuiltinFunction(edi, native_context_index); |
2089 // Load the code entry point from the function into the target register. | 2088 // Load the code entry point from the function into the target register. |
2090 mov(target, FieldOperand(edi, JSFunction::kCodeEntryOffset)); | 2089 mov(target, FieldOperand(edi, JSFunction::kCodeEntryOffset)); |
2091 } | 2090 } |
2092 | 2091 |
2093 | 2092 |
2094 void MacroAssembler::LoadContext(Register dst, int context_chain_length) { | 2093 void MacroAssembler::LoadContext(Register dst, int context_chain_length) { |
2095 if (context_chain_length > 0) { | 2094 if (context_chain_length > 0) { |
2096 // Move up the chain of contexts to the context containing the slot. | 2095 // Move up the chain of contexts to the context containing the slot. |
2097 mov(dst, Operand(esi, Context::SlotOffset(Context::PREVIOUS_INDEX))); | 2096 mov(dst, Operand(esi, Context::SlotOffset(Context::PREVIOUS_INDEX))); |
2098 for (int i = 1; i < context_chain_length; i++) { | 2097 for (int i = 1; i < context_chain_length; i++) { |
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3183 mov(eax, dividend); | 3182 mov(eax, dividend); |
3184 shr(eax, 31); | 3183 shr(eax, 31); |
3185 add(edx, eax); | 3184 add(edx, eax); |
3186 } | 3185 } |
3187 | 3186 |
3188 | 3187 |
3189 } // namespace internal | 3188 } // namespace internal |
3190 } // namespace v8 | 3189 } // namespace v8 |
3191 | 3190 |
3192 #endif // V8_TARGET_ARCH_IA32 | 3191 #endif // V8_TARGET_ARCH_IA32 |
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