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Issue 1094014: Merge the partial_snapshots branch back into bleeding_edge. For... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 10 years, 9 months ago
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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
(...skipping 127 matching lines...) Expand 10 before | Expand all | Expand 10 after
138 __ bind(&done); // t1 == t0 + 4*index 138 __ bind(&done); // t1 == t0 + 4*index
139 __ ldr(r3, FieldMemOperand(t1, kElementsStartOffset + 2 * kPointerSize)); 139 __ ldr(r3, FieldMemOperand(t1, kElementsStartOffset + 2 * kPointerSize));
140 __ tst(r3, Operand(PropertyDetails::TypeField::mask() << kSmiTagSize)); 140 __ tst(r3, Operand(PropertyDetails::TypeField::mask() << kSmiTagSize));
141 __ b(ne, miss); 141 __ b(ne, miss);
142 142
143 // Get the value at the masked, scaled index and return. 143 // Get the value at the masked, scaled index and return.
144 __ ldr(t1, FieldMemOperand(t1, kElementsStartOffset + 1 * kPointerSize)); 144 __ ldr(t1, FieldMemOperand(t1, kElementsStartOffset + 1 * kPointerSize));
145 } 145 }
146 146
147 147
148 // Helper function used to check that a value is either not an object
149 // or is loaded if it is an object.
150 static void GenerateCheckNonObjectOrLoaded(MacroAssembler* masm,
151 Label* miss,
152 Register value,
153 Register scratch) {
154 Label done;
155 // Check if the value is a Smi.
156 __ tst(value, Operand(kSmiTagMask));
157 __ b(eq, &done);
158 // Check if the object has been loaded.
159 __ ldr(scratch, FieldMemOperand(value, JSObject::kMapOffset));
160 __ ldrb(scratch, FieldMemOperand(scratch, Map::kBitField2Offset));
161 __ tst(scratch, Operand(1 << Map::kNeedsLoading));
162 __ b(ne, miss);
163 __ bind(&done);
164 }
165
166
167 void LoadIC::GenerateArrayLength(MacroAssembler* masm) { 148 void LoadIC::GenerateArrayLength(MacroAssembler* masm) {
168 // ----------- S t a t e ------------- 149 // ----------- S t a t e -------------
169 // -- r2 : name 150 // -- r2 : name
170 // -- lr : return address 151 // -- lr : return address
171 // -- [sp] : receiver 152 // -- [sp] : receiver
172 // ----------------------------------- 153 // -----------------------------------
173 Label miss; 154 Label miss;
174 155
175 __ ldr(r0, MemOperand(sp, 0)); 156 __ ldr(r0, MemOperand(sp, 0));
176 157
(...skipping 108 matching lines...) Expand 10 before | Expand all | Expand 10 after
285 GenerateDictionaryLoad(masm, miss, r0, r1); 266 GenerateDictionaryLoad(masm, miss, r0, r1);
286 267
287 // Check that the value isn't a smi. 268 // Check that the value isn't a smi.
288 __ tst(r1, Operand(kSmiTagMask)); 269 __ tst(r1, Operand(kSmiTagMask));
289 __ b(eq, miss); 270 __ b(eq, miss);
290 271
291 // Check that the value is a JSFunction. 272 // Check that the value is a JSFunction.
292 __ CompareObjectType(r1, r0, r0, JS_FUNCTION_TYPE); 273 __ CompareObjectType(r1, r0, r0, JS_FUNCTION_TYPE);
293 __ b(ne, miss); 274 __ b(ne, miss);
294 275
295 // Check that the function has been loaded.
296 __ ldr(r0, FieldMemOperand(r1, JSObject::kMapOffset));
297 __ ldrb(r0, FieldMemOperand(r0, Map::kBitField2Offset));
298 __ tst(r0, Operand(1 << Map::kNeedsLoading));
299 __ b(ne, miss);
300
301 // Patch the receiver with the global proxy if necessary. 276 // Patch the receiver with the global proxy if necessary.
302 if (is_global_object) { 277 if (is_global_object) {
303 __ ldr(r0, MemOperand(sp, argc * kPointerSize)); 278 __ ldr(r0, MemOperand(sp, argc * kPointerSize));
304 __ ldr(r0, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset)); 279 __ ldr(r0, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset));
305 __ str(r0, MemOperand(sp, argc * kPointerSize)); 280 __ str(r0, MemOperand(sp, argc * kPointerSize));
306 } 281 }
307 282
308 // Invoke the function. 283 // Invoke the function.
309 ParameterCount actual(argc); 284 ParameterCount actual(argc);
310 __ InvokeFunction(r1, actual, JUMP_FUNCTION); 285 __ InvokeFunction(r1, actual, JUMP_FUNCTION);
(...skipping 151 matching lines...) Expand 10 before | Expand all | Expand 10 after
462 __ cmp(r1, Operand(JS_GLOBAL_PROXY_TYPE)); 437 __ cmp(r1, Operand(JS_GLOBAL_PROXY_TYPE));
463 __ b(eq, &global); 438 __ b(eq, &global);
464 439
465 // Check for non-global object that requires access check. 440 // Check for non-global object that requires access check.
466 __ ldrb(r3, FieldMemOperand(r3, Map::kBitFieldOffset)); 441 __ ldrb(r3, FieldMemOperand(r3, Map::kBitFieldOffset));
467 __ tst(r3, Operand(1 << Map::kIsAccessCheckNeeded)); 442 __ tst(r3, Operand(1 << Map::kIsAccessCheckNeeded));
468 __ b(ne, &miss); 443 __ b(ne, &miss);
469 444
470 __ bind(&probe); 445 __ bind(&probe);
471 GenerateDictionaryLoad(masm, &miss, r1, r0); 446 GenerateDictionaryLoad(masm, &miss, r1, r0);
472 GenerateCheckNonObjectOrLoaded(masm, &miss, r0, r1);
473 __ Ret(); 447 __ Ret();
474 448
475 // Global object access: Check access rights. 449 // Global object access: Check access rights.
476 __ bind(&global); 450 __ bind(&global);
477 __ CheckAccessGlobalProxy(r0, r1, &miss); 451 __ CheckAccessGlobalProxy(r0, r1, &miss);
478 __ b(&probe); 452 __ b(&probe);
479 453
480 // Cache miss: Restore receiver from stack and jump to runtime. 454 // Cache miss: Restore receiver from stack and jump to runtime.
481 __ bind(&miss); 455 __ bind(&miss);
482 GenerateMiss(masm); 456 GenerateMiss(masm);
(...skipping 424 matching lines...) Expand 10 before | Expand all | Expand 10 after
907 __ bind(&miss); 881 __ bind(&miss);
908 882
909 GenerateMiss(masm); 883 GenerateMiss(masm);
910 } 884 }
911 885
912 886
913 #undef __ 887 #undef __
914 888
915 889
916 } } // namespace v8::internal 890 } } // namespace v8::internal
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