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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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_X64) | 6 #if defined(TARGET_ARCH_X64) |
7 | 7 |
8 #include "vm/assembler.h" | 8 #include "vm/assembler.h" |
9 #include "vm/compiler.h" | 9 #include "vm/compiler.h" |
10 #include "vm/dart_entry.h" | 10 #include "vm/dart_entry.h" |
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1082 // when the object initialization should be done as a loop or as | 1082 // when the object initialization should be done as a loop or as |
1083 // straight line code. | 1083 // straight line code. |
1084 const int kInlineInstanceSize = 12; // In words. | 1084 const int kInlineInstanceSize = 12; // In words. |
1085 const intptr_t instance_size = cls.instance_size(); | 1085 const intptr_t instance_size = cls.instance_size(); |
1086 ASSERT(instance_size > 0); | 1086 ASSERT(instance_size > 0); |
1087 __ LoadObject(R12, Object::null_object(), PP); | 1087 __ LoadObject(R12, Object::null_object(), PP); |
1088 if (is_cls_parameterized) { | 1088 if (is_cls_parameterized) { |
1089 __ movq(RDX, Address(RSP, kObjectTypeArgumentsOffset)); | 1089 __ movq(RDX, Address(RSP, kObjectTypeArgumentsOffset)); |
1090 // RDX: instantiated type arguments. | 1090 // RDX: instantiated type arguments. |
1091 } | 1091 } |
1092 if (FLAG_inline_alloc && Heap::IsAllocatableInNewSpace(instance_size)) { | 1092 if (FLAG_inline_alloc && Heap::IsAllocatableInNewSpace(instance_size) && |
| 1093 !cls.trace_allocation()) { |
1093 Label slow_case; | 1094 Label slow_case; |
1094 // Allocate the object and update top to point to | 1095 // Allocate the object and update top to point to |
1095 // next object start and initialize the allocated object. | 1096 // next object start and initialize the allocated object. |
1096 // RDX: instantiated type arguments (if is_cls_parameterized). | 1097 // RDX: instantiated type arguments (if is_cls_parameterized). |
1097 Heap* heap = Isolate::Current()->heap(); | 1098 Heap* heap = Isolate::Current()->heap(); |
1098 Heap::Space space = heap->SpaceForAllocation(cls.id()); | 1099 Heap::Space space = heap->SpaceForAllocation(cls.id()); |
1099 __ movq(RCX, Immediate(heap->TopAddress(space))); | 1100 __ movq(RCX, Immediate(heap->TopAddress(space))); |
1100 __ movq(RAX, Address(RCX, 0)); | 1101 __ movq(RAX, Address(RCX, 0)); |
1101 __ leaq(RBX, Address(RAX, instance_size)); | 1102 __ leaq(RBX, Address(RAX, instance_size)); |
1102 // Check if the allocation fits into the remaining space. | 1103 // Check if the allocation fits into the remaining space. |
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2176 // Result: | 2177 // Result: |
2177 // RCX: entry point. | 2178 // RCX: entry point. |
2178 void StubCode::GenerateMegamorphicLookupStub(Assembler* assembler) { | 2179 void StubCode::GenerateMegamorphicLookupStub(Assembler* assembler) { |
2179 EmitMegamorphicLookup(assembler, RDI, RBX, RCX); | 2180 EmitMegamorphicLookup(assembler, RDI, RBX, RCX); |
2180 __ ret(); | 2181 __ ret(); |
2181 } | 2182 } |
2182 | 2183 |
2183 } // namespace dart | 2184 } // namespace dart |
2184 | 2185 |
2185 #endif // defined TARGET_ARCH_X64 | 2186 #endif // defined TARGET_ARCH_X64 |
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