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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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58 | 58 |
59 CompilationInfo* info_; | 59 CompilationInfo* info_; |
60 bool has_supported_syntax_; | 60 bool has_supported_syntax_; |
61 | 61 |
62 DISALLOW_COPY_AND_ASSIGN(FastCodeGenSyntaxChecker); | 62 DISALLOW_COPY_AND_ASSIGN(FastCodeGenSyntaxChecker); |
63 }; | 63 }; |
64 | 64 |
65 | 65 |
66 class FastCodeGenerator: public AstVisitor { | 66 class FastCodeGenerator: public AstVisitor { |
67 public: | 67 public: |
68 explicit FastCodeGenerator(MacroAssembler* masm) : masm_(masm), info_(NULL) {} | 68 explicit FastCodeGenerator(MacroAssembler* masm) |
| 69 : masm_(masm), info_(NULL), destination_(no_reg) { |
| 70 } |
69 | 71 |
70 static Handle<Code> MakeCode(CompilationInfo* info); | 72 static Handle<Code> MakeCode(CompilationInfo* info); |
71 | 73 |
72 void Generate(CompilationInfo* compilation_info); | 74 void Generate(CompilationInfo* compilation_info); |
73 | 75 |
74 private: | 76 private: |
75 MacroAssembler* masm() { return masm_; } | 77 MacroAssembler* masm() { return masm_; } |
76 CompilationInfo* info() { return info_; } | 78 CompilationInfo* info() { return info_; } |
77 Label* bailout() { return &bailout_; } | 79 Label* bailout() { return &bailout_; } |
78 | 80 |
| 81 Register destination() { return destination_; } |
| 82 void set_destination(Register reg) { destination_ = reg; } |
| 83 |
79 FunctionLiteral* function() { return info_->function(); } | 84 FunctionLiteral* function() { return info_->function(); } |
80 Scope* scope() { return info_->scope(); } | 85 Scope* scope() { return info_->scope(); } |
81 | 86 |
82 // Platform-specific fixed registers, all guaranteed distinct. | 87 // Platform-specific fixed registers, all guaranteed distinct. |
83 Register accumulator0(); | 88 Register accumulator0(); |
84 Register accumulator1(); | 89 Register accumulator1(); |
85 Register scratch0(); | 90 Register scratch0(); |
86 Register scratch1(); | 91 Register scratch1(); |
87 Register receiver_reg(); | 92 Register receiver_reg(); |
88 Register context_reg(); | 93 Register context_reg(); |
89 | 94 |
| 95 Register other_accumulator(Register reg) { |
| 96 ASSERT(reg.is(accumulator0()) || reg.is(accumulator1())); |
| 97 return (reg.is(accumulator0())) ? accumulator1() : accumulator0(); |
| 98 } |
| 99 |
90 // AST node visit functions. | 100 // AST node visit functions. |
91 #define DECLARE_VISIT(type) virtual void Visit##type(type* node); | 101 #define DECLARE_VISIT(type) virtual void Visit##type(type* node); |
92 AST_NODE_LIST(DECLARE_VISIT) | 102 AST_NODE_LIST(DECLARE_VISIT) |
93 #undef DECLARE_VISIT | 103 #undef DECLARE_VISIT |
94 | 104 |
95 // Emit code to load the receiver from the stack into the fixed receiver | 105 // Emit code to load the receiver from the stack into receiver_reg. |
96 // register. | |
97 void EmitLoadReceiver(); | 106 void EmitLoadReceiver(); |
98 | 107 |
99 // Emit code to check that the receiver has the same map as the | 108 // Emit code to load a global variable directly from a global property |
100 // compile-time receiver. Receiver is expected in {ia32-edx, x64-rdx, | 109 // cell into the destination register. |
101 // arm-r1}. Emit a branch to the (single) bailout label if check fails. | |
102 void EmitReceiverMapCheck(); | |
103 | |
104 // Emit code to check that the global object has the same map as the | |
105 // global object seen at compile time. | |
106 void EmitGlobalMapCheck(); | |
107 | |
108 // Emit code to load a global variable directly from a global | |
109 // property cell into {ia32-eax, x64-rax, arm-r0}. | |
110 void EmitGlobalVariableLoad(Handle<Object> cell); | 110 void EmitGlobalVariableLoad(Handle<Object> cell); |
111 | 111 |
112 // Emit a store to an own property of this. The stored value is expected | 112 // Emit a store to an own property of this. The stored value is expected |
113 // in {ia32-eax, x64-rax, arm-r0} and the receiver in {is32-edx, x64-rdx, | 113 // in accumulator0 and the receiver in receiver_reg. The receiver |
114 // arm-r1}. Both are preserve. | 114 // register is preserved and the result (the stored value) is left in the |
| 115 // destination register. |
115 void EmitThisPropertyStore(Handle<String> name); | 116 void EmitThisPropertyStore(Handle<String> name); |
116 | 117 |
| 118 // Emit a load from an own property of this. The receiver is expected in |
| 119 // receiver_reg. The receiver register is preserved and the result is |
| 120 // left in the destination register. |
| 121 void EmitThisPropertyLoad(Handle<String> name); |
| 122 |
| 123 // Emit a bitwise or operation. The left operand is in accumulator1 and |
| 124 // the right is in accumulator0. The result should be left in the |
| 125 // destination register. |
| 126 void EmitBitOr(); |
| 127 |
117 MacroAssembler* masm_; | 128 MacroAssembler* masm_; |
118 | |
119 CompilationInfo* info_; | 129 CompilationInfo* info_; |
120 | |
121 Label bailout_; | 130 Label bailout_; |
| 131 Register destination_; |
122 | 132 |
123 DISALLOW_COPY_AND_ASSIGN(FastCodeGenerator); | 133 DISALLOW_COPY_AND_ASSIGN(FastCodeGenerator); |
124 }; | 134 }; |
125 | 135 |
126 | 136 |
127 } } // namespace v8::internal | 137 } } // namespace v8::internal |
128 | 138 |
129 #endif // V8_FAST_CODEGEN_H_ | 139 #endif // V8_FAST_CODEGEN_H_ |
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