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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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100 #endif | 100 #endif |
101 }; | 101 }; |
102 | 102 |
103 | 103 |
104 // Generate code for a JS function. On entry to the function the receiver | 104 // Generate code for a JS function. On entry to the function the receiver |
105 // and arguments have been pushed on the stack left to right, with the | 105 // and arguments have been pushed on the stack left to right, with the |
106 // return address on top of them. The actual argument count matches the | 106 // return address on top of them. The actual argument count matches the |
107 // formal parameter count expected by the function. | 107 // formal parameter count expected by the function. |
108 // | 108 // |
109 // The live registers are: | 109 // The live registers are: |
110 // o ecx: CallKind | |
111 // o edi: the JS function object being called (i.e. ourselves) | 110 // o edi: the JS function object being called (i.e. ourselves) |
112 // o esi: our context | 111 // o esi: our context |
113 // o ebp: our caller's frame pointer | 112 // o ebp: our caller's frame pointer |
114 // o esp: stack pointer (pointing to return address) | 113 // o esp: stack pointer (pointing to return address) |
115 // | 114 // |
116 // The function builds a JS frame. Please see JavaScriptFrameConstants in | 115 // The function builds a JS frame. Please see JavaScriptFrameConstants in |
117 // frames-ia32.h for its layout. | 116 // frames-ia32.h for its layout. |
118 void FullCodeGenerator::Generate() { | 117 void FullCodeGenerator::Generate() { |
119 CompilationInfo* info = info_; | 118 CompilationInfo* info = info_; |
120 handler_table_ = | 119 handler_table_ = |
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131 info->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) { | 130 info->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) { |
132 __ int3(); | 131 __ int3(); |
133 } | 132 } |
134 #endif | 133 #endif |
135 | 134 |
136 // Classic mode functions and builtins need to replace the receiver with the | 135 // Classic mode functions and builtins need to replace the receiver with the |
137 // global proxy when called as functions (without an explicit receiver | 136 // global proxy when called as functions (without an explicit receiver |
138 // object). | 137 // object). |
139 if (info->is_classic_mode() && !info->is_native()) { | 138 if (info->is_classic_mode() && !info->is_native()) { |
140 Label ok; | 139 Label ok; |
141 __ test(ecx, ecx); | |
142 __ j(zero, &ok, Label::kNear); | |
143 | |
144 // +1 for return address. | 140 // +1 for return address. |
145 int receiver_offset = (info->scope()->num_parameters() + 1) * kPointerSize; | 141 int receiver_offset = (info->scope()->num_parameters() + 1) * kPointerSize; |
146 __ mov(ecx, Operand(esp, receiver_offset)); | 142 __ mov(ecx, Operand(esp, receiver_offset)); |
147 | 143 |
148 __ cmp(ecx, isolate()->factory()->undefined_value()); | 144 __ cmp(ecx, isolate()->factory()->undefined_value()); |
149 __ j(not_equal, &ok, Label::kNear); | 145 __ j(not_equal, &ok, Label::kNear); |
150 | 146 |
151 __ mov(ecx, GlobalObjectOperand()); | 147 __ mov(ecx, GlobalObjectOperand()); |
152 __ mov(ecx, FieldOperand(ecx, GlobalObject::kGlobalReceiverOffset)); | 148 __ mov(ecx, FieldOperand(ecx, GlobalObject::kGlobalReceiverOffset)); |
153 | 149 |
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3686 | 3682 |
3687 Label runtime, done; | 3683 Label runtime, done; |
3688 // Check for non-function argument (including proxy). | 3684 // Check for non-function argument (including proxy). |
3689 __ JumpIfSmi(eax, &runtime); | 3685 __ JumpIfSmi(eax, &runtime); |
3690 __ CmpObjectType(eax, JS_FUNCTION_TYPE, ebx); | 3686 __ CmpObjectType(eax, JS_FUNCTION_TYPE, ebx); |
3691 __ j(not_equal, &runtime); | 3687 __ j(not_equal, &runtime); |
3692 | 3688 |
3693 // InvokeFunction requires the function in edi. Move it in there. | 3689 // InvokeFunction requires the function in edi. Move it in there. |
3694 __ mov(edi, result_register()); | 3690 __ mov(edi, result_register()); |
3695 ParameterCount count(arg_count); | 3691 ParameterCount count(arg_count); |
3696 __ InvokeFunction(edi, count, CALL_FUNCTION, | 3692 __ InvokeFunction(edi, count, CALL_FUNCTION, NullCallWrapper()); |
3697 NullCallWrapper(), CALL_AS_FUNCTION); | |
3698 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); | 3693 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
3699 __ jmp(&done); | 3694 __ jmp(&done); |
3700 | 3695 |
3701 __ bind(&runtime); | 3696 __ bind(&runtime); |
3702 __ push(eax); | 3697 __ push(eax); |
3703 __ CallRuntime(Runtime::kCall, args->length()); | 3698 __ CallRuntime(Runtime::kCall, args->length()); |
3704 __ bind(&done); | 3699 __ bind(&done); |
3705 | 3700 |
3706 context()->Plug(eax); | 3701 context()->Plug(eax); |
3707 } | 3702 } |
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4890 | 4885 |
4891 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), | 4886 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), |
4892 Assembler::target_address_at(call_target_address)); | 4887 Assembler::target_address_at(call_target_address)); |
4893 return OSR_AFTER_STACK_CHECK; | 4888 return OSR_AFTER_STACK_CHECK; |
4894 } | 4889 } |
4895 | 4890 |
4896 | 4891 |
4897 } } // namespace v8::internal | 4892 } } // namespace v8::internal |
4898 | 4893 |
4899 #endif // V8_TARGET_ARCH_IA32 | 4894 #endif // V8_TARGET_ARCH_IA32 |
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