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Side by Side Diff: runtime/vm/intrinsifier_ia32.cc

Issue 10441111: - Rename class index to class id. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 8 years, 6 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 // 4 //
5 // The intrinsic code below is executed before a method has built its frame. 5 // The intrinsic code below is executed before a method has built its frame.
6 // The return address is on the stack and the arguments below it. 6 // The return address is on the stack and the arguments below it.
7 // Registers EDX (arguments descriptor) and ECX (function) must be preserved. 7 // Registers EDX (arguments descriptor) and ECX (function) must be preserved.
8 // Each intrinsification method returns true if the corresponding 8 // Each intrinsification method returns true if the corresponding
9 // Dart method was intrinsified. 9 // Dart method was intrinsified.
10 10
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78 __ j(ABOVE, &size_tag_overflow, Assembler::kNearJump); 78 __ j(ABOVE, &size_tag_overflow, Assembler::kNearJump);
79 __ shll(EDI, Immediate(RawObject::kSizeTagBit - kObjectAlignmentLog2)); 79 __ shll(EDI, Immediate(RawObject::kSizeTagBit - kObjectAlignmentLog2));
80 __ jmp(&done, Assembler::kNearJump); 80 __ jmp(&done, Assembler::kNearJump);
81 81
82 __ Bind(&size_tag_overflow); 82 __ Bind(&size_tag_overflow);
83 __ movl(EDI, Immediate(0)); 83 __ movl(EDI, Immediate(0));
84 __ Bind(&done); 84 __ Bind(&done);
85 85
86 // Get the class index and insert it into the tags. 86 // Get the class index and insert it into the tags.
87 const Class& cls = Class::Handle(isolate->object_store()->array_class()); 87 const Class& cls = Class::Handle(isolate->object_store()->array_class());
88 __ orl(EDI, Immediate(RawObject::ClassTag::encode(cls.index()))); 88 __ orl(EDI, Immediate(RawObject::ClassIdTag::encode(cls.id())));
89 __ movl(FieldAddress(EAX, Array::tags_offset()), EDI); // Tags. 89 __ movl(FieldAddress(EAX, Array::tags_offset()), EDI); // Tags.
90 } 90 }
91 91
92 // Store class value for array. 92 // Store class value for array.
93 // EAX: new object start as a tagged pointer. 93 // EAX: new object start as a tagged pointer.
94 // EBX: new object end address. 94 // EBX: new object end address.
95 __ movl(EDI, FieldAddress(CTX, Context::isolate_offset())); 95 __ movl(EDI, FieldAddress(CTX, Context::isolate_offset()));
96 __ movl(EDI, Address(EDI, Isolate::object_store_offset())); 96 __ movl(EDI, Address(EDI, Isolate::object_store_offset()));
97 __ movl(EDI, Address(EDI, ObjectStore::array_class_offset())); 97 __ movl(EDI, Address(EDI, ObjectStore::array_class_offset()));
98 __ StoreIntoObject(EAX, FieldAddress(EAX, Array::class_offset()), EDI); 98 __ StoreIntoObject(EAX, FieldAddress(EAX, Array::class_offset()), EDI);
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288 // next object start and initialize the object. 288 // next object start and initialize the object.
289 __ movl(Address::Absolute(heap->TopAddress()), EBX); 289 __ movl(Address::Absolute(heap->TopAddress()), EBX);
290 __ addl(EAX, Immediate(kHeapObjectTag)); 290 __ addl(EAX, Immediate(kHeapObjectTag));
291 291
292 // Initialize the tags. 292 // Initialize the tags.
293 // EAX: new growable array object start as a tagged pointer. 293 // EAX: new growable array object start as a tagged pointer.
294 const Class& cls = Class::Handle( 294 const Class& cls = Class::Handle(
295 isolate->object_store()->growable_object_array_class()); 295 isolate->object_store()->growable_object_array_class());
296 uword tags = 0; 296 uword tags = 0;
297 tags = RawObject::SizeTag::update(fixed_size, tags); 297 tags = RawObject::SizeTag::update(fixed_size, tags);
298 tags = RawObject::ClassTag::update(cls.index(), tags); 298 tags = RawObject::ClassIdTag::update(cls.id(), tags);
299 __ movl(FieldAddress(EAX, GrowableObjectArray::tags_offset()), 299 __ movl(FieldAddress(EAX, GrowableObjectArray::tags_offset()),
300 Immediate(tags)); 300 Immediate(tags));
301 301
302 // Store backing array object in growable array object. 302 // Store backing array object in growable array object.
303 __ movl(EBX, Address(ESP, kArrayOffset)); // data argument. 303 __ movl(EBX, Address(ESP, kArrayOffset)); // data argument.
304 __ StoreIntoObject(EAX, 304 __ StoreIntoObject(EAX,
305 FieldAddress(EAX, GrowableObjectArray::data_offset()), 305 FieldAddress(EAX, GrowableObjectArray::data_offset()),
306 EBX); 306 EBX);
307 307
308 // Store class value for the growable array object. 308 // Store class value for the growable array object.
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1291 __ Bind(&is_true); 1291 __ Bind(&is_true);
1292 __ LoadObject(EAX, bool_true); 1292 __ LoadObject(EAX, bool_true);
1293 __ ret(); 1293 __ ret();
1294 return true; 1294 return true;
1295 } 1295 }
1296 1296
1297 #undef __ 1297 #undef __
1298 } // namespace dart 1298 } // namespace dart
1299 1299
1300 #endif // defined TARGET_ARCH_IA32 1300 #endif // defined TARGET_ARCH_IA32
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