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Issue 1073133002: Reland "Merge cellspace into old pointer space" (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 8 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 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_ARM64 7 #if V8_TARGET_ARCH_ARM64
8 8
9 #include "src/bootstrapper.h" 9 #include "src/bootstrapper.h"
10 #include "src/code-stubs.h" 10 #include "src/code-stubs.h"
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1537 __ IsObjectJSObjectType(prototype, scratch1, scratch2, &slow); 1537 __ IsObjectJSObjectType(prototype, scratch1, scratch2, &slow);
1538 1538
1539 // Update the global instanceof or call site inlined cache with the current 1539 // Update the global instanceof or call site inlined cache with the current
1540 // map and function. The cached answer will be set when it is known below. 1540 // map and function. The cached answer will be set when it is known below.
1541 if (HasCallSiteInlineCheck()) { 1541 if (HasCallSiteInlineCheck()) {
1542 // Patch the (relocated) inlined map check. 1542 // Patch the (relocated) inlined map check.
1543 __ GetRelocatedValueLocation(map_check_site, scratch1); 1543 __ GetRelocatedValueLocation(map_check_site, scratch1);
1544 // We have a cell, so need another level of dereferencing. 1544 // We have a cell, so need another level of dereferencing.
1545 __ Ldr(scratch1, MemOperand(scratch1)); 1545 __ Ldr(scratch1, MemOperand(scratch1));
1546 __ Str(map, FieldMemOperand(scratch1, Cell::kValueOffset)); 1546 __ Str(map, FieldMemOperand(scratch1, Cell::kValueOffset));
1547
1548 __ Mov(x14, map);
1549 // |scratch1| points at the beginning of the cell. Calculate the
1550 // field containing the map.
1551 __ Add(function, scratch1, Operand(Cell::kValueOffset - 1));
1552 __ RecordWriteField(scratch1, Cell::kValueOffset, x14, function,
1553 kLRHasNotBeenSaved, kDontSaveFPRegs,
1554 OMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
1547 } else { 1555 } else {
1548 __ StoreRoot(function, Heap::kInstanceofCacheFunctionRootIndex); 1556 __ StoreRoot(function, Heap::kInstanceofCacheFunctionRootIndex);
1549 __ StoreRoot(map, Heap::kInstanceofCacheMapRootIndex); 1557 __ StoreRoot(map, Heap::kInstanceofCacheMapRootIndex);
1550 } 1558 }
1551 1559
1552 Label return_true, return_result; 1560 Label return_true, return_result;
1553 Register smi_value = scratch1; 1561 Register smi_value = scratch1;
1554 { 1562 {
1555 // Loop through the prototype chain looking for the function prototype. 1563 // Loop through the prototype chain looking for the function prototype.
1556 Register chain_map = x1; 1564 Register chain_map = x1;
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5743 kStackUnwindSpace, NULL, spill_offset, 5751 kStackUnwindSpace, NULL, spill_offset,
5744 MemOperand(fp, 6 * kPointerSize), NULL); 5752 MemOperand(fp, 6 * kPointerSize), NULL);
5745 } 5753 }
5746 5754
5747 5755
5748 #undef __ 5756 #undef __
5749 5757
5750 } } // namespace v8::internal 5758 } } // namespace v8::internal
5751 5759
5752 #endif // V8_TARGET_ARCH_ARM64 5760 #endif // V8_TARGET_ARCH_ARM64
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