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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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| 81 void CopyRegistersFromStackToMemory(Register base, | 81 void CopyRegistersFromStackToMemory(Register base, |
| 82 Register scratch, | 82 Register scratch, |
| 83 RegList regs); | 83 RegList regs); |
| 84 | 84 |
| 85 | 85 |
| 86 // --------------------------------------------------------------------------- | 86 // --------------------------------------------------------------------------- |
| 87 // Activation frames | 87 // Activation frames |
| 88 | 88 |
| 89 // Enter or exit a stack frame of the given type. Cannot be used to | 89 // Enter or exit a stack frame of the given type. Cannot be used to |
| 90 // construct or leave JavaScript frames. | 90 // construct or leave JavaScript frames. |
| 91 void EnterFrame(StackFrame::Type type); | 91 void EnterInternalFrame(); |
| 92 void ExitFrame(StackFrame::Type type); | 92 void ExitInternalFrame(); |
| 93 | 93 |
| 94 | 94 |
| 95 // --------------------------------------------------------------------------- | 95 // --------------------------------------------------------------------------- |
| 96 // JavaScript invokes | 96 // JavaScript invokes |
| 97 | 97 |
| 98 // Invoke the JavaScript function code by either calling or jumping. | 98 // Invoke the JavaScript function code by either calling or jumping. |
| 99 void InvokeCode(const Operand& code, | 99 void InvokeCode(const Operand& code, |
| 100 const ParameterCount& expected, | 100 const ParameterCount& expected, |
| 101 const ParameterCount& actual, | 101 const ParameterCount& actual, |
| 102 InvokeFlag flag); | 102 InvokeFlag flag); |
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| 113 const ParameterCount& actual, | 113 const ParameterCount& actual, |
| 114 InvokeFlag flag); | 114 InvokeFlag flag); |
| 115 | 115 |
| 116 // Invoke specified builtin JavaScript function. Adds an entry to | 116 // Invoke specified builtin JavaScript function. Adds an entry to |
| 117 // the unresolved list if the name does not resolve. | 117 // the unresolved list if the name does not resolve. |
| 118 void InvokeBuiltin(Builtins::JavaScript id, InvokeFlag flag); | 118 void InvokeBuiltin(Builtins::JavaScript id, InvokeFlag flag); |
| 119 | 119 |
| 120 // Store the code object for the given builtin in the target register. | 120 // Store the code object for the given builtin in the target register. |
| 121 void GetBuiltinEntry(Register target, Builtins::JavaScript id); | 121 void GetBuiltinEntry(Register target, Builtins::JavaScript id); |
| 122 | 122 |
| 123 // Get the code for the given builtin. Returns if able to resolve | |
| 124 // the function in the 'resolved' flag. | |
| 125 Handle<Code> ResolveBuiltin(Builtins::JavaScript id, bool* resolved); | |
| 126 | |
| 127 // Expression support | 123 // Expression support |
| 128 void Set(Register dst, const Immediate& x); | 124 void Set(Register dst, const Immediate& x); |
| 129 void Set(const Operand& dst, const Immediate& x); | 125 void Set(const Operand& dst, const Immediate& x); |
| 130 | 126 |
| 131 // FCmp is similar to integer cmp, but requires unsigned | 127 // FCmp is similar to integer cmp, but requires unsigned |
| 132 // jcc instructions (je, ja, jae, jb, jbe, je, and jz). | 128 // jcc instructions (je, ja, jae, jb, jbe, je, and jz). |
| 133 void FCmp(); | 129 void FCmp(); |
| 134 | 130 |
| 135 // --------------------------------------------------------------------------- | 131 // --------------------------------------------------------------------------- |
| 136 // Exception handling | 132 // Exception handling |
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| 244 bool generating_stub_; | 240 bool generating_stub_; |
| 245 bool allow_stub_calls_; | 241 bool allow_stub_calls_; |
| 246 | 242 |
| 247 // Helper functions for generating invokes. | 243 // Helper functions for generating invokes. |
| 248 void InvokePrologue(const ParameterCount& expected, | 244 void InvokePrologue(const ParameterCount& expected, |
| 249 const ParameterCount& actual, | 245 const ParameterCount& actual, |
| 250 Handle<Code> code_constant, | 246 Handle<Code> code_constant, |
| 251 const Operand& code_operand, | 247 const Operand& code_operand, |
| 252 Label* done, | 248 Label* done, |
| 253 InvokeFlag flag); | 249 InvokeFlag flag); |
| 250 |
| 251 // Get the code for the given builtin. Returns if able to resolve |
| 252 // the function in the 'resolved' flag. |
| 253 Handle<Code> ResolveBuiltin(Builtins::JavaScript id, bool* resolved); |
| 254 }; | 254 }; |
| 255 | 255 |
| 256 | 256 |
| 257 // The code patcher is used to patch (typically) small parts of code e.g. for | 257 // The code patcher is used to patch (typically) small parts of code e.g. for |
| 258 // debugging and other types of instrumentation. When using the code patcher | 258 // debugging and other types of instrumentation. When using the code patcher |
| 259 // the exact number of bytes specified must be emitted. Is not legal to emit | 259 // the exact number of bytes specified must be emitted. Is not legal to emit |
| 260 // relocation information. If any of these constraints are violated it causes | 260 // relocation information. If any of these constraints are violated it causes |
| 261 // an assertion. | 261 // an assertion. |
| 262 class CodePatcher { | 262 class CodePatcher { |
| 263 public: | 263 public: |
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| 287 Register index, | 287 Register index, |
| 288 ScaleFactor scale, | 288 ScaleFactor scale, |
| 289 int offset) { | 289 int offset) { |
| 290 return Operand(object, index, scale, offset - kHeapObjectTag); | 290 return Operand(object, index, scale, offset - kHeapObjectTag); |
| 291 } | 291 } |
| 292 | 292 |
| 293 | 293 |
| 294 } } // namespace v8::internal | 294 } } // namespace v8::internal |
| 295 | 295 |
| 296 #endif // V8_MACRO_ASSEMBLER_IA32_H_ | 296 #endif // V8_MACRO_ASSEMBLER_IA32_H_ |
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