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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 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_MIPS 7 #if V8_TARGET_ARCH_MIPS
8 8
9 #include "src/base/bits.h" 9 #include "src/base/bits.h"
10 #include "src/bootstrapper.h" 10 #include "src/bootstrapper.h"
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1452 DCHECK(HasArgsInRegisters()); 1452 DCHECK(HasArgsInRegisters());
1453 // Patch the (relocated) inlined map check. 1453 // Patch the (relocated) inlined map check.
1454 1454
1455 // The offset was stored in t0 safepoint slot. 1455 // The offset was stored in t0 safepoint slot.
1456 // (See LCodeGen::DoDeferredLInstanceOfKnownGlobal). 1456 // (See LCodeGen::DoDeferredLInstanceOfKnownGlobal).
1457 __ LoadFromSafepointRegisterSlot(scratch, t0); 1457 __ LoadFromSafepointRegisterSlot(scratch, t0);
1458 __ Subu(inline_site, ra, scratch); 1458 __ Subu(inline_site, ra, scratch);
1459 // Get the map location in scratch and patch it. 1459 // Get the map location in scratch and patch it.
1460 __ GetRelocatedValue(inline_site, scratch, v1); // v1 used as scratch. 1460 __ GetRelocatedValue(inline_site, scratch, v1); // v1 used as scratch.
1461 __ sw(map, FieldMemOperand(scratch, Cell::kValueOffset)); 1461 __ sw(map, FieldMemOperand(scratch, Cell::kValueOffset));
1462
1463 __ mov(t4, map);
1464 // |scratch| points at the beginning of the cell. Calculate the field
1465 // containing the map.
1466 __ Addu(function, scratch, Operand(Cell::kValueOffset - 1));
1467 __ RecordWriteField(scratch, Cell::kValueOffset, t4, function,
1468 kRAHasNotBeenSaved, kDontSaveFPRegs,
1469 OMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
1462 } 1470 }
1463 1471
1464 // Register mapping: a3 is object map and t0 is function prototype. 1472 // Register mapping: a3 is object map and t0 is function prototype.
1465 // Get prototype of object into a2. 1473 // Get prototype of object into a2.
1466 __ lw(scratch, FieldMemOperand(map, Map::kPrototypeOffset)); 1474 __ lw(scratch, FieldMemOperand(map, Map::kPrototypeOffset));
1467 1475
1468 // We don't need map any more. Use it as a scratch register. 1476 // We don't need map any more. Use it as a scratch register.
1469 Register scratch2 = map; 1477 Register scratch2 = map;
1470 map = no_reg; 1478 map = no_reg;
1471 1479
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5503 kStackUnwindSpace, kInvalidStackOffset, 5511 kStackUnwindSpace, kInvalidStackOffset,
5504 MemOperand(fp, 6 * kPointerSize), NULL); 5512 MemOperand(fp, 6 * kPointerSize), NULL);
5505 } 5513 }
5506 5514
5507 5515
5508 #undef __ 5516 #undef __
5509 5517
5510 } } // namespace v8::internal 5518 } } // namespace v8::internal
5511 5519
5512 #endif // V8_TARGET_ARCH_MIPS 5520 #endif // V8_TARGET_ARCH_MIPS
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