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Issue 334323003: Reland r22082 "Replace HeapNumber as doublebox with an explicit MutableHeapNumber." (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Migrations test fixed Created 6 years, 5 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 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #if V8_TARGET_ARCH_X87 7 #if V8_TARGET_ARCH_X87
8 8
9 #include "src/bootstrapper.h" 9 #include "src/bootstrapper.h"
10 #include "src/codegen.h" 10 #include "src/codegen.h"
(...skipping 1558 matching lines...) Expand 10 before | Expand all | Expand 10 after
1569 cmp(object, Operand::StaticVariable(new_space_allocation_top)); 1569 cmp(object, Operand::StaticVariable(new_space_allocation_top));
1570 Check(below, kUndoAllocationOfNonAllocatedMemory); 1570 Check(below, kUndoAllocationOfNonAllocatedMemory);
1571 #endif 1571 #endif
1572 mov(Operand::StaticVariable(new_space_allocation_top), object); 1572 mov(Operand::StaticVariable(new_space_allocation_top), object);
1573 } 1573 }
1574 1574
1575 1575
1576 void MacroAssembler::AllocateHeapNumber(Register result, 1576 void MacroAssembler::AllocateHeapNumber(Register result,
1577 Register scratch1, 1577 Register scratch1,
1578 Register scratch2, 1578 Register scratch2,
1579 Label* gc_required) { 1579 Label* gc_required,
1580 MutableMode mode) {
1580 // Allocate heap number in new space. 1581 // Allocate heap number in new space.
1581 Allocate(HeapNumber::kSize, result, scratch1, scratch2, gc_required, 1582 Allocate(HeapNumber::kSize, result, scratch1, scratch2, gc_required,
1582 TAG_OBJECT); 1583 TAG_OBJECT);
1583 1584
1585 Handle<Map> map = mode == MUTABLE
1586 ? isolate()->factory()->mutable_heap_number_map()
1587 : isolate()->factory()->heap_number_map();
1588
1584 // Set the map. 1589 // Set the map.
1585 mov(FieldOperand(result, HeapObject::kMapOffset), 1590 mov(FieldOperand(result, HeapObject::kMapOffset), Immediate(map));
1586 Immediate(isolate()->factory()->heap_number_map()));
1587 } 1591 }
1588 1592
1589 1593
1590 void MacroAssembler::AllocateTwoByteString(Register result, 1594 void MacroAssembler::AllocateTwoByteString(Register result,
1591 Register length, 1595 Register length,
1592 Register scratch1, 1596 Register scratch1,
1593 Register scratch2, 1597 Register scratch2,
1594 Register scratch3, 1598 Register scratch3,
1595 Label* gc_required) { 1599 Label* gc_required) {
1596 // Calculate the number of bytes needed for the characters in the string while 1600 // Calculate the number of bytes needed for the characters in the string while
(...skipping 1695 matching lines...) Expand 10 before | Expand all | Expand 10 after
3292 if (ms.shift() > 0) sar(edx, ms.shift()); 3296 if (ms.shift() > 0) sar(edx, ms.shift());
3293 mov(eax, dividend); 3297 mov(eax, dividend);
3294 shr(eax, 31); 3298 shr(eax, 31);
3295 add(edx, eax); 3299 add(edx, eax);
3296 } 3300 }
3297 3301
3298 3302
3299 } } // namespace v8::internal 3303 } } // namespace v8::internal
3300 3304
3301 #endif // V8_TARGET_ARCH_X87 3305 #endif // V8_TARGET_ARCH_X87
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