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Issue 2860049: Port prototype-call-stubs for normal objects (http://codereview.chromium.org/... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 10 years, 5 months ago
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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. 1 // Copyright 2006-2009 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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309 // On exit, r0 contains TOS (code slot). 309 // On exit, r0 contains TOS (code slot).
310 void PushTryHandler(CodeLocation try_location, HandlerType type); 310 void PushTryHandler(CodeLocation try_location, HandlerType type);
311 311
312 // Unlink the stack handler on top of the stack from the try handler chain. 312 // Unlink the stack handler on top of the stack from the try handler chain.
313 // Must preserve the result register. 313 // Must preserve the result register.
314 void PopTryHandler(); 314 void PopTryHandler();
315 315
316 // --------------------------------------------------------------------------- 316 // ---------------------------------------------------------------------------
317 // Inline caching support 317 // Inline caching support
318 318
319 // Generates code that verifies that the maps of objects in the
320 // prototype chain of object hasn't changed since the code was
321 // generated and branches to the miss label if any map has. If
322 // necessary the function also generates code for security check
323 // in case of global object holders. The scratch and holder
324 // registers are always clobbered, but the object register is only
325 // clobbered if it the same as the holder register. The function
326 // returns a register containing the holder - either object_reg or
327 // holder_reg.
328 // The function can optionally (when save_at_depth !=
329 // kInvalidProtoDepth) save the object at the given depth by moving
330 // it to [sp].
331 Register CheckMaps(JSObject* object, Register object_reg,
332 JSObject* holder, Register holder_reg,
333 Register scratch,
334 int save_at_depth,
335 Label* miss);
336
337 // Generate code for checking access rights - used for security checks 319 // Generate code for checking access rights - used for security checks
338 // on access to global objects across environments. The holder register 320 // on access to global objects across environments. The holder register
339 // is left untouched, whereas both scratch registers are clobbered. 321 // is left untouched, whereas both scratch registers are clobbered.
340 void CheckAccessGlobalProxy(Register holder_reg, 322 void CheckAccessGlobalProxy(Register holder_reg,
341 Register scratch, 323 Register scratch,
342 Label* miss); 324 Label* miss);
343 325
344 326
345 // --------------------------------------------------------------------------- 327 // ---------------------------------------------------------------------------
346 // Allocation support 328 // Allocation support
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734 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) 716 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
735 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> 717 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
736 #else 718 #else
737 #define ACCESS_MASM(masm) masm-> 719 #define ACCESS_MASM(masm) masm->
738 #endif 720 #endif
739 721
740 722
741 } } // namespace v8::internal 723 } } // namespace v8::internal
742 724
743 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ 725 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_
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