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Issue 6392027: Change OSR stack check patching to use the stack check table. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Address comments. Created 9 years, 10 months ago
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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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127 JSObject* object, OptimizedFunctionVisitor* visitor); 127 JSObject* object, OptimizedFunctionVisitor* visitor);
128 128
129 static void VisitAllOptimizedFunctions(OptimizedFunctionVisitor* visitor); 129 static void VisitAllOptimizedFunctions(OptimizedFunctionVisitor* visitor);
130 130
131 // Patch all stack guard checks in the unoptimized code to 131 // Patch all stack guard checks in the unoptimized code to
132 // unconditionally call replacement_code. 132 // unconditionally call replacement_code.
133 static void PatchStackCheckCode(Code* unoptimized_code, 133 static void PatchStackCheckCode(Code* unoptimized_code,
134 Code* check_code, 134 Code* check_code,
135 Code* replacement_code); 135 Code* replacement_code);
136 136
137 // Patch stack guard check at instruction before pc_after in
138 // the unoptimized code to unconditionally call replacement_code.
139 static void PatchStackCheckAt(Address pc_after,
140 Code* check_code,
141 Code* replacement_code);
142
137 // Change all patched stack guard checks in the unoptimized code 143 // Change all patched stack guard checks in the unoptimized code
138 // back to a normal stack guard check. 144 // back to a normal stack guard check.
139 static void RevertStackCheckCode(Code* unoptimized_code, 145 static void RevertStackCheckCode(Code* unoptimized_code,
140 Code* check_code, 146 Code* check_code,
141 Code* replacement_code); 147 Code* replacement_code);
142 148
143 ~Deoptimizer(); 149 ~Deoptimizer();
144 150
145 void InsertHeapNumberValues(int index, JavaScriptFrame* frame); 151 void InsertHeapNumberValues(int index, JavaScriptFrame* frame);
146 152
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505 Handle<Code> code_; 511 Handle<Code> code_;
506 512
507 // Next pointer for linked list. 513 // Next pointer for linked list.
508 DeoptimizingCodeListNode* next_; 514 DeoptimizingCodeListNode* next_;
509 }; 515 };
510 516
511 517
512 } } // namespace v8::internal 518 } } // namespace v8::internal
513 519
514 #endif // V8_DEOPTIMIZER_H_ 520 #endif // V8_DEOPTIMIZER_H_
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