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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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1980 } | 1980 } |
1981 } else { | 1981 } else { |
1982 jmp(adaptor, RelocInfo::CODE_TARGET); | 1982 jmp(adaptor, RelocInfo::CODE_TARGET); |
1983 } | 1983 } |
1984 bind(&invoke); | 1984 bind(&invoke); |
1985 } | 1985 } |
1986 } | 1986 } |
1987 | 1987 |
1988 | 1988 |
1989 void MacroAssembler::InvokeCode(const Operand& code, | 1989 void MacroAssembler::InvokeCode(const Operand& code, |
| 1990 Register new_target, |
1990 const ParameterCount& expected, | 1991 const ParameterCount& expected, |
1991 const ParameterCount& actual, | 1992 const ParameterCount& actual, |
1992 InvokeFlag flag, | 1993 InvokeFlag flag, |
1993 const CallWrapper& call_wrapper) { | 1994 const CallWrapper& call_wrapper) { |
1994 // You can't call a function without a valid frame. | 1995 // You can't call a function without a valid frame. |
1995 DCHECK(flag == JUMP_FUNCTION || has_frame()); | 1996 DCHECK(flag == JUMP_FUNCTION || has_frame()); |
1996 | 1997 |
| 1998 // Ensure new target is passed in the correct register. Otherwise clear the |
| 1999 // appropriate register in case new target is not given. |
| 2000 DCHECK_IMPLIES(new_target.is_valid(), new_target.is(edx)); |
| 2001 if (!new_target.is_valid()) { |
| 2002 mov(edx, isolate()->factory()->undefined_value()); |
| 2003 } |
| 2004 |
1997 Label done; | 2005 Label done; |
1998 bool definitely_mismatches = false; | 2006 bool definitely_mismatches = false; |
1999 InvokePrologue(expected, actual, &done, &definitely_mismatches, flag, | 2007 InvokePrologue(expected, actual, &done, &definitely_mismatches, flag, |
2000 Label::kNear, call_wrapper); | 2008 Label::kNear, call_wrapper); |
2001 if (!definitely_mismatches) { | 2009 if (!definitely_mismatches) { |
2002 if (flag == CALL_FUNCTION) { | 2010 if (flag == CALL_FUNCTION) { |
2003 call_wrapper.BeforeCall(CallSize(code)); | 2011 call_wrapper.BeforeCall(CallSize(code)); |
2004 call(code); | 2012 call(code); |
2005 call_wrapper.AfterCall(); | 2013 call_wrapper.AfterCall(); |
2006 } else { | 2014 } else { |
2007 DCHECK(flag == JUMP_FUNCTION); | 2015 DCHECK(flag == JUMP_FUNCTION); |
2008 jmp(code); | 2016 jmp(code); |
2009 } | 2017 } |
2010 bind(&done); | 2018 bind(&done); |
2011 } | 2019 } |
2012 } | 2020 } |
2013 | 2021 |
2014 | 2022 |
2015 void MacroAssembler::InvokeFunction(Register fun, | 2023 void MacroAssembler::InvokeFunction(Register fun, |
| 2024 Register new_target, |
2016 const ParameterCount& actual, | 2025 const ParameterCount& actual, |
2017 InvokeFlag flag, | 2026 InvokeFlag flag, |
2018 const CallWrapper& call_wrapper) { | 2027 const CallWrapper& call_wrapper) { |
2019 // You can't call a function without a valid frame. | 2028 // You can't call a function without a valid frame. |
2020 DCHECK(flag == JUMP_FUNCTION || has_frame()); | 2029 DCHECK(flag == JUMP_FUNCTION || has_frame()); |
2021 | 2030 |
2022 DCHECK(fun.is(edi)); | 2031 DCHECK(fun.is(edi)); |
2023 mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); | 2032 mov(ebx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
2024 mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); | 2033 mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
2025 mov(ebx, FieldOperand(edx, SharedFunctionInfo::kFormalParameterCountOffset)); | 2034 mov(ebx, FieldOperand(ebx, SharedFunctionInfo::kFormalParameterCountOffset)); |
2026 SmiUntag(ebx); | 2035 SmiUntag(ebx); |
2027 | 2036 |
2028 ParameterCount expected(ebx); | 2037 ParameterCount expected(ebx); |
2029 InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), | 2038 InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), new_target, |
2030 expected, actual, flag, call_wrapper); | 2039 expected, actual, flag, call_wrapper); |
2031 } | 2040 } |
2032 | 2041 |
2033 | 2042 |
2034 void MacroAssembler::InvokeFunction(Register fun, | 2043 void MacroAssembler::InvokeFunction(Register fun, |
2035 const ParameterCount& expected, | 2044 const ParameterCount& expected, |
2036 const ParameterCount& actual, | 2045 const ParameterCount& actual, |
2037 InvokeFlag flag, | 2046 InvokeFlag flag, |
2038 const CallWrapper& call_wrapper) { | 2047 const CallWrapper& call_wrapper) { |
2039 // You can't call a function without a valid frame. | 2048 // You can't call a function without a valid frame. |
2040 DCHECK(flag == JUMP_FUNCTION || has_frame()); | 2049 DCHECK(flag == JUMP_FUNCTION || has_frame()); |
2041 | 2050 |
2042 DCHECK(fun.is(edi)); | 2051 DCHECK(fun.is(edi)); |
2043 mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); | 2052 mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
2044 | 2053 |
2045 InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), | 2054 InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), no_reg, |
2046 expected, actual, flag, call_wrapper); | 2055 expected, actual, flag, call_wrapper); |
2047 } | 2056 } |
2048 | 2057 |
2049 | 2058 |
2050 void MacroAssembler::InvokeFunction(Handle<JSFunction> function, | 2059 void MacroAssembler::InvokeFunction(Handle<JSFunction> function, |
2051 const ParameterCount& expected, | 2060 const ParameterCount& expected, |
2052 const ParameterCount& actual, | 2061 const ParameterCount& actual, |
2053 InvokeFlag flag, | 2062 InvokeFlag flag, |
2054 const CallWrapper& call_wrapper) { | 2063 const CallWrapper& call_wrapper) { |
2055 LoadHeapObject(edi, function); | 2064 LoadHeapObject(edi, function); |
2056 InvokeFunction(edi, expected, actual, flag, call_wrapper); | 2065 InvokeFunction(edi, expected, actual, flag, call_wrapper); |
2057 } | 2066 } |
2058 | 2067 |
2059 | 2068 |
2060 void MacroAssembler::InvokeBuiltin(int native_context_index, InvokeFlag flag, | 2069 void MacroAssembler::InvokeBuiltin(int native_context_index, InvokeFlag flag, |
2061 const CallWrapper& call_wrapper) { | 2070 const CallWrapper& call_wrapper) { |
2062 // You can't call a builtin without a valid frame. | 2071 // You can't call a builtin without a valid frame. |
2063 DCHECK(flag == JUMP_FUNCTION || has_frame()); | 2072 DCHECK(flag == JUMP_FUNCTION || has_frame()); |
2064 | 2073 |
2065 // Rely on the assertion to check that the number of provided | 2074 // Rely on the assertion to check that the number of provided |
2066 // arguments match the expected number of arguments. Fake a | 2075 // arguments match the expected number of arguments. Fake a |
2067 // parameter count to avoid emitting code to do the check. | 2076 // parameter count to avoid emitting code to do the check. |
2068 ParameterCount expected(0); | 2077 ParameterCount expected(0); |
2069 GetBuiltinFunction(edi, native_context_index); | 2078 GetBuiltinFunction(edi, native_context_index); |
2070 InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), | 2079 InvokeCode(FieldOperand(edi, JSFunction::kCodeEntryOffset), no_reg, |
2071 expected, expected, flag, call_wrapper); | 2080 expected, expected, flag, call_wrapper); |
2072 } | 2081 } |
2073 | 2082 |
2074 | 2083 |
2075 void MacroAssembler::GetBuiltinFunction(Register target, | 2084 void MacroAssembler::GetBuiltinFunction(Register target, |
2076 int native_context_index) { | 2085 int native_context_index) { |
2077 // Load the JavaScript builtin function from the builtins object. | 2086 // Load the JavaScript builtin function from the builtins object. |
2078 mov(target, GlobalObjectOperand()); | 2087 mov(target, GlobalObjectOperand()); |
2079 mov(target, FieldOperand(target, JSGlobalObject::kNativeContextOffset)); | 2088 mov(target, FieldOperand(target, JSGlobalObject::kNativeContextOffset)); |
2080 mov(target, ContextOperand(target, native_context_index)); | 2089 mov(target, ContextOperand(target, native_context_index)); |
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3137 mov(eax, dividend); | 3146 mov(eax, dividend); |
3138 shr(eax, 31); | 3147 shr(eax, 31); |
3139 add(edx, eax); | 3148 add(edx, eax); |
3140 } | 3149 } |
3141 | 3150 |
3142 | 3151 |
3143 } // namespace internal | 3152 } // namespace internal |
3144 } // namespace v8 | 3153 } // namespace v8 |
3145 | 3154 |
3146 #endif // V8_TARGET_ARCH_IA32 | 3155 #endif // V8_TARGET_ARCH_IA32 |
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