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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 #include "vm/globals.h" | 5 #include "vm/globals.h" |
6 #if defined(TARGET_ARCH_IA32) | 6 #if defined(TARGET_ARCH_IA32) |
7 | 7 |
8 #include "vm/assembler.h" | 8 #include "vm/assembler.h" |
9 #include "vm/heap.h" | 9 #include "vm/heap.h" |
10 #include "vm/memory_region.h" | 10 #include "vm/memory_region.h" |
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1415 cmpl(value, Immediate( | 1415 cmpl(value, Immediate( |
1416 (kNewObjectAlignmentOffset >> 1) + kHeapObjectTag + | 1416 (kNewObjectAlignmentOffset >> 1) + kHeapObjectTag + |
1417 kOldObjectAlignmentOffset + kHeapObjectTag)); | 1417 kOldObjectAlignmentOffset + kHeapObjectTag)); |
1418 j(NOT_ZERO, no_update, Assembler::kNearJump); | 1418 j(NOT_ZERO, no_update, Assembler::kNearJump); |
1419 } | 1419 } |
1420 | 1420 |
1421 | 1421 |
1422 void Assembler::StoreIntoObject(Register object, | 1422 void Assembler::StoreIntoObject(Register object, |
1423 const FieldAddress& dest, | 1423 const FieldAddress& dest, |
1424 Register value) { | 1424 Register value) { |
1425 // TODO(kmillikin): pass temp registers to avoid pushing registers. | 1425 ASSERT(object != value); |
1426 movl(dest, value); | 1426 movl(dest, value); |
1427 Label done; | 1427 Label done; |
1428 pushl(value); | |
1429 StoreIntoObjectFilter(object, value, &done); | 1428 StoreIntoObjectFilter(object, value, &done); |
1430 // A store buffer update is required. | 1429 // A store buffer update is required. |
1431 if (value != EAX) pushl(EAX); // Preserve EAX. | 1430 if (value != EAX) pushl(EAX); // Preserve EAX. |
1432 leal(EAX, dest); | 1431 leal(EAX, dest); |
1433 call(&StubCode::UpdateStoreBufferLabel()); | 1432 call(&StubCode::UpdateStoreBufferLabel()); |
1434 if (value != EAX) popl(EAX); // Restore EAX. | 1433 if (value != EAX) popl(EAX); // Restore EAX. |
1435 Bind(&done); | 1434 Bind(&done); |
1436 popl(value); | |
1437 } | 1435 } |
1438 | 1436 |
1439 | 1437 |
1440 void Assembler::StoreIntoObjectNoBarrier(Register object, | 1438 void Assembler::StoreIntoObjectNoBarrier(Register object, |
1441 const FieldAddress& dest, | 1439 const FieldAddress& dest, |
1442 Register value) { | 1440 Register value) { |
1443 movl(dest, value); | 1441 movl(dest, value); |
1444 #if defined(DEBUG) | 1442 #if defined(DEBUG) |
1445 Label done; | 1443 Label done; |
1446 pushl(value); | 1444 pushl(value); |
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1840 | 1838 |
1841 const char* Assembler::XmmRegisterName(XmmRegister reg) { | 1839 const char* Assembler::XmmRegisterName(XmmRegister reg) { |
1842 ASSERT((0 <= reg) && (reg < kNumberOfXmmRegisters)); | 1840 ASSERT((0 <= reg) && (reg < kNumberOfXmmRegisters)); |
1843 return xmm_reg_names[reg]; | 1841 return xmm_reg_names[reg]; |
1844 } | 1842 } |
1845 | 1843 |
1846 | 1844 |
1847 } // namespace dart | 1845 } // namespace dart |
1848 | 1846 |
1849 #endif // defined TARGET_ARCH_IA32 | 1847 #endif // defined TARGET_ARCH_IA32 |
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