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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
6 // met: | 6 // met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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773 | 773 |
774 void Assembler::bind(Label* L) { | 774 void Assembler::bind(Label* L) { |
775 ASSERT(!L->is_bound()); // Label can only be bound once. | 775 ASSERT(!L->is_bound()); // Label can only be bound once. |
776 bind_to(L, pc_offset()); | 776 bind_to(L, pc_offset()); |
777 } | 777 } |
778 | 778 |
779 | 779 |
780 void Assembler::next(Label* L) { | 780 void Assembler::next(Label* L) { |
781 ASSERT(L->is_linked()); | 781 ASSERT(L->is_linked()); |
782 int link = target_at(L->pos()); | 782 int link = target_at(L->pos()); |
783 ASSERT(link > 0 || link == kEndOfChain); | |
784 if (link == kEndOfChain) { | 783 if (link == kEndOfChain) { |
785 L->Unuse(); | 784 L->Unuse(); |
786 } else if (link > 0) { | 785 } else { |
| 786 ASSERT(link >= 0); |
787 L->link_to(link); | 787 L->link_to(link); |
788 } | 788 } |
789 } | 789 } |
790 | 790 |
791 bool Assembler::is_near(Label* L) { | 791 bool Assembler::is_near(Label* L) { |
792 if (L->is_bound()) { | 792 if (L->is_bound()) { |
793 return ((pc_offset() - L->pos()) < kMaxBranchOffset - 4 * kInstrSize); | 793 return ((pc_offset() - L->pos()) < kMaxBranchOffset - 4 * kInstrSize); |
794 } | 794 } |
795 return false; | 795 return false; |
796 } | 796 } |
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2059 *p = LUI | rt_code | ((itarget & kHiMask) >> kLuiShift); | 2059 *p = LUI | rt_code | ((itarget & kHiMask) >> kLuiShift); |
2060 *(p+1) = ORI | rt_code | (rt_code << 5) | (itarget & kImm16Mask); | 2060 *(p+1) = ORI | rt_code | (rt_code << 5) | (itarget & kImm16Mask); |
2061 | 2061 |
2062 CPU::FlushICache(pc, 2 * sizeof(int32_t)); | 2062 CPU::FlushICache(pc, 2 * sizeof(int32_t)); |
2063 } | 2063 } |
2064 | 2064 |
2065 | 2065 |
2066 } } // namespace v8::internal | 2066 } } // namespace v8::internal |
2067 | 2067 |
2068 #endif // V8_TARGET_ARCH_MIPS | 2068 #endif // V8_TARGET_ARCH_MIPS |
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