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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" // NOLINT | 5 #include "vm/globals.h" // NOLINT |
| 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/cpu.h" | 9 #include "vm/cpu.h" |
| 10 #include "vm/heap.h" | 10 #include "vm/heap.h" |
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| 3695 // the case that object is a Smi. | 3695 // the case that object is a Smi. |
| 3696 LoadObject(result, Object::null_object()); | 3696 LoadObject(result, Object::null_object()); |
| 3697 // Check if the object is a Smi. | 3697 // Check if the object is a Smi. |
| 3698 testq(object, Immediate(kSmiTagMask)); | 3698 testq(object, Immediate(kSmiTagMask)); |
| 3699 // If the object *is* a Smi, use the null object instead. | 3699 // If the object *is* a Smi, use the null object instead. |
| 3700 cmoveq(object, result); | 3700 cmoveq(object, result); |
| 3701 // Loads either the cid of the object if it isn't a Smi, or the cid of null | 3701 // Loads either the cid of the object if it isn't a Smi, or the cid of null |
| 3702 // if it is a Smi, which will be ignored. | 3702 // if it is a Smi, which will be ignored. |
| 3703 LoadClassId(result, object); | 3703 LoadClassId(result, object); |
| 3704 | 3704 |
| 3705 movq(object, Immediate(kSmiCid)); | 3705 movq(TMP, Immediate(kSmiCid)); |
| 3706 // If object is a Smi, move the Smi cid into result. o/w leave alone. | 3706 // If object is a Smi, move the Smi cid into result. o/w leave alone. |
| 3707 cmoveq(result, object); | 3707 cmoveq(result, TMP); |
| 3708 } | 3708 } |
| 3709 | 3709 |
| 3710 | 3710 |
| 3711 void Assembler::LoadTaggedClassIdMayBeSmi(Register result, Register object) { | 3711 void Assembler::LoadTaggedClassIdMayBeSmi(Register result, Register object) { |
| 3712 LoadClassIdMayBeSmi(result, object); | 3712 LoadClassIdMayBeSmi(result, object); |
| 3713 // Finally, tag the result. | 3713 // Finally, tag the result. |
| 3714 SmiTag(result); | 3714 SmiTag(result); |
| 3715 } | 3715 } |
| 3716 | 3716 |
| 3717 | 3717 |
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| 3784 | 3784 |
| 3785 | 3785 |
| 3786 const char* Assembler::FpuRegisterName(FpuRegister reg) { | 3786 const char* Assembler::FpuRegisterName(FpuRegister reg) { |
| 3787 ASSERT((0 <= reg) && (reg < kNumberOfXmmRegisters)); | 3787 ASSERT((0 <= reg) && (reg < kNumberOfXmmRegisters)); |
| 3788 return xmm_reg_names[reg]; | 3788 return xmm_reg_names[reg]; |
| 3789 } | 3789 } |
| 3790 | 3790 |
| 3791 } // namespace dart | 3791 } // namespace dart |
| 3792 | 3792 |
| 3793 #endif // defined TARGET_ARCH_X64 | 3793 #endif // defined TARGET_ARCH_X64 |
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