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Issue 12440041: Generalizing remaining Allocate functions in the macro assemblers used in pretenuring. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 9 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 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 202 matching lines...) Expand 10 before | Expand all | Expand 10 after
213 __ pop(rdi); 213 __ pop(rdi);
214 __ pop(rax); 214 __ pop(rax);
215 215
216 __ bind(&allocate); 216 __ bind(&allocate);
217 } 217 }
218 218
219 // Now allocate the JSObject on the heap. 219 // Now allocate the JSObject on the heap.
220 __ movzxbq(rdi, FieldOperand(rax, Map::kInstanceSizeOffset)); 220 __ movzxbq(rdi, FieldOperand(rax, Map::kInstanceSizeOffset));
221 __ shl(rdi, Immediate(kPointerSizeLog2)); 221 __ shl(rdi, Immediate(kPointerSizeLog2));
222 // rdi: size of new object 222 // rdi: size of new object
223 __ AllocateInNewSpace(rdi, 223 __ Allocate(rdi,
224 rbx, 224 rbx,
225 rdi, 225 rdi,
226 no_reg, 226 no_reg,
227 &rt_call, 227 &rt_call,
228 NO_ALLOCATION_FLAGS); 228 NO_ALLOCATION_FLAGS);
229 // Allocated the JSObject, now initialize the fields. 229 // Allocated the JSObject, now initialize the fields.
230 // rax: initial map 230 // rax: initial map
231 // rbx: JSObject (not HeapObject tagged - the actual address). 231 // rbx: JSObject (not HeapObject tagged - the actual address).
232 // rdi: start of next object 232 // rdi: start of next object
233 __ movq(Operand(rbx, JSObject::kMapOffset), rax); 233 __ movq(Operand(rbx, JSObject::kMapOffset), rax);
234 __ LoadRoot(rcx, Heap::kEmptyFixedArrayRootIndex); 234 __ LoadRoot(rcx, Heap::kEmptyFixedArrayRootIndex);
235 __ movq(Operand(rbx, JSObject::kPropertiesOffset), rcx); 235 __ movq(Operand(rbx, JSObject::kPropertiesOffset), rcx);
236 __ movq(Operand(rbx, JSObject::kElementsOffset), rcx); 236 __ movq(Operand(rbx, JSObject::kElementsOffset), rcx);
237 // Set extra fields in the newly allocated object. 237 // Set extra fields in the newly allocated object.
238 // rax: initial map 238 // rax: initial map
(...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after
280 __ subq(rdx, rcx); 280 __ subq(rdx, rcx);
281 // Done if no extra properties are to be allocated. 281 // Done if no extra properties are to be allocated.
282 __ j(zero, &allocated); 282 __ j(zero, &allocated);
283 __ Assert(positive, "Property allocation count failed."); 283 __ Assert(positive, "Property allocation count failed.");
284 284
285 // Scale the number of elements by pointer size and add the header for 285 // Scale the number of elements by pointer size and add the header for
286 // FixedArrays to the start of the next object calculation from above. 286 // FixedArrays to the start of the next object calculation from above.
287 // rbx: JSObject 287 // rbx: JSObject
288 // rdi: start of next object (will be start of FixedArray) 288 // rdi: start of next object (will be start of FixedArray)
289 // rdx: number of elements in properties array 289 // rdx: number of elements in properties array
290 __ AllocateInNewSpace(FixedArray::kHeaderSize, 290 __ Allocate(FixedArray::kHeaderSize,
291 times_pointer_size, 291 times_pointer_size,
292 rdx, 292 rdx,
293 rdi, 293 rdi,
294 rax, 294 rax,
295 no_reg, 295 no_reg,
296 &undo_allocation, 296 &undo_allocation,
297 RESULT_CONTAINS_TOP); 297 RESULT_CONTAINS_TOP);
298 298
299 // Initialize the FixedArray. 299 // Initialize the FixedArray.
300 // rbx: JSObject 300 // rbx: JSObject
301 // rdi: FixedArray 301 // rdi: FixedArray
302 // rdx: number of elements 302 // rdx: number of elements
303 // rax: start of next object 303 // rax: start of next object
304 __ LoadRoot(rcx, Heap::kFixedArrayMapRootIndex); 304 __ LoadRoot(rcx, Heap::kFixedArrayMapRootIndex);
305 __ movq(Operand(rdi, HeapObject::kMapOffset), rcx); // setup the map 305 __ movq(Operand(rdi, HeapObject::kMapOffset), rcx); // setup the map
306 __ Integer32ToSmi(rdx, rdx); 306 __ Integer32ToSmi(rdx, rdx);
307 __ movq(Operand(rdi, FixedArray::kLengthOffset), rdx); // and length 307 __ movq(Operand(rdi, FixedArray::kLengthOffset), rdx); // and length
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1209 1209
1210 if (FLAG_debug_code) { // Assert that array size is not zero. 1210 if (FLAG_debug_code) { // Assert that array size is not zero.
1211 __ testq(array_size, array_size); 1211 __ testq(array_size, array_size);
1212 __ Assert(not_zero, "array size is unexpectedly 0"); 1212 __ Assert(not_zero, "array size is unexpectedly 0");
1213 } 1213 }
1214 1214
1215 // Allocate the JSArray object together with space for a FixedArray with the 1215 // Allocate the JSArray object together with space for a FixedArray with the
1216 // requested elements. 1216 // requested elements.
1217 SmiIndex index = 1217 SmiIndex index =
1218 masm->SmiToIndex(kScratchRegister, array_size, kPointerSizeLog2); 1218 masm->SmiToIndex(kScratchRegister, array_size, kPointerSizeLog2);
1219 __ AllocateInNewSpace(JSArray::kSize + FixedArray::kHeaderSize, 1219 __ Allocate(JSArray::kSize + FixedArray::kHeaderSize,
1220 index.scale, 1220 index.scale,
1221 index.reg, 1221 index.reg,
1222 result, 1222 result,
1223 elements_array_end, 1223 elements_array_end,
1224 scratch, 1224 scratch,
1225 gc_required, 1225 gc_required,
1226 TAG_OBJECT); 1226 TAG_OBJECT);
1227 1227
1228 // Allocated the JSArray. Now initialize the fields except for the elements 1228 // Allocated the JSArray. Now initialize the fields except for the elements
1229 // array. 1229 // array.
1230 // result: JSObject 1230 // result: JSObject
1231 // elements_array: initial map 1231 // elements_array: initial map
1232 // elements_array_end: start of next object 1232 // elements_array_end: start of next object
1233 // array_size: size of array (smi) 1233 // array_size: size of array (smi)
1234 Factory* factory = masm->isolate()->factory(); 1234 Factory* factory = masm->isolate()->factory();
1235 __ movq(FieldOperand(result, JSObject::kMapOffset), elements_array); 1235 __ movq(FieldOperand(result, JSObject::kMapOffset), elements_array);
1236 __ Move(elements_array, factory->empty_fixed_array()); 1236 __ Move(elements_array, factory->empty_fixed_array());
(...skipping 660 matching lines...) Expand 10 before | Expand all | Expand 10 after
1897 Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR); 1897 Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR);
1898 generator.Generate(); 1898 generator.Generate();
1899 } 1899 }
1900 1900
1901 1901
1902 #undef __ 1902 #undef __
1903 1903
1904 } } // namespace v8::internal 1904 } } // namespace v8::internal
1905 1905
1906 #endif // V8_TARGET_ARCH_X64 1906 #endif // V8_TARGET_ARCH_X64
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