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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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| 794 // fixup_pos. | 794 // fixup_pos. |
| 795 Instr instr = instr_at(fixup_pos); | 795 Instr instr = instr_at(fixup_pos); |
| 796 if (is_internal) { | 796 if (is_internal) { |
| 797 target_at_put(fixup_pos, pos, is_internal); | 797 target_at_put(fixup_pos, pos, is_internal); |
| 798 } else if (IsBranch(instr)) { | 798 } else if (IsBranch(instr)) { |
| 799 if (dist > kMaxBranchOffset) { | 799 if (dist > kMaxBranchOffset) { |
| 800 if (trampoline_pos == kInvalidSlotPos) { | 800 if (trampoline_pos == kInvalidSlotPos) { |
| 801 trampoline_pos = get_trampoline_entry(fixup_pos); | 801 trampoline_pos = get_trampoline_entry(fixup_pos); |
| 802 CHECK(trampoline_pos != kInvalidSlotPos); | 802 CHECK(trampoline_pos != kInvalidSlotPos); |
| 803 } | 803 } |
| 804 DCHECK((trampoline_pos - fixup_pos) <= kMaxBranchOffset); | 804 CHECK((trampoline_pos - fixup_pos) <= kMaxBranchOffset); |
| 805 target_at_put(fixup_pos, trampoline_pos, false); | 805 target_at_put(fixup_pos, trampoline_pos, false); |
| 806 fixup_pos = trampoline_pos; | 806 fixup_pos = trampoline_pos; |
| 807 dist = pos - fixup_pos; | 807 dist = pos - fixup_pos; |
| 808 } | 808 } |
| 809 target_at_put(fixup_pos, pos, false); | 809 target_at_put(fixup_pos, pos, false); |
| 810 } else { | 810 } else { |
| 811 DCHECK(IsJ(instr) || IsJal(instr) || IsLui(instr) || | 811 DCHECK(IsJ(instr) || IsJal(instr) || IsLui(instr) || |
| 812 IsEmittedConstant(instr)); | 812 IsEmittedConstant(instr)); |
| 813 target_at_put(fixup_pos, pos, false); | 813 target_at_put(fixup_pos, pos, false); |
| 814 } | 814 } |
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| 3089 ClearRecordedAstId(); | 3089 ClearRecordedAstId(); |
| 3090 reloc_info_writer.Write(&reloc_info_with_ast_id); | 3090 reloc_info_writer.Write(&reloc_info_with_ast_id); |
| 3091 } else { | 3091 } else { |
| 3092 reloc_info_writer.Write(&rinfo); | 3092 reloc_info_writer.Write(&rinfo); |
| 3093 } | 3093 } |
| 3094 } | 3094 } |
| 3095 } | 3095 } |
| 3096 | 3096 |
| 3097 | 3097 |
| 3098 void Assembler::BlockTrampolinePoolFor(int instructions) { | 3098 void Assembler::BlockTrampolinePoolFor(int instructions) { |
| 3099 CheckTrampolinePoolQuick(instructions); |
| 3099 BlockTrampolinePoolBefore(pc_offset() + instructions * kInstrSize); | 3100 BlockTrampolinePoolBefore(pc_offset() + instructions * kInstrSize); |
| 3100 } | 3101 } |
| 3101 | 3102 |
| 3102 | 3103 |
| 3103 void Assembler::CheckTrampolinePool() { | 3104 void Assembler::CheckTrampolinePool() { |
| 3104 // Some small sequences of instructions must not be broken up by the | 3105 // Some small sequences of instructions must not be broken up by the |
| 3105 // insertion of a trampoline pool; such sequences are protected by setting | 3106 // insertion of a trampoline pool; such sequences are protected by setting |
| 3106 // either trampoline_pool_blocked_nesting_ or no_trampoline_pool_before_, | 3107 // either trampoline_pool_blocked_nesting_ or no_trampoline_pool_before_, |
| 3107 // which are both checked here. Also, recursive calls to CheckTrampolinePool | 3108 // which are both checked here. Also, recursive calls to CheckTrampolinePool |
| 3108 // are blocked by trampoline_pool_blocked_nesting_. | 3109 // are blocked by trampoline_pool_blocked_nesting_. |
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| 3239 if (icache_flush_mode != SKIP_ICACHE_FLUSH) { | 3240 if (icache_flush_mode != SKIP_ICACHE_FLUSH) { |
| 3240 CpuFeatures::FlushICache(pc, 4 * Assembler::kInstrSize); | 3241 CpuFeatures::FlushICache(pc, 4 * Assembler::kInstrSize); |
| 3241 } | 3242 } |
| 3242 } | 3243 } |
| 3243 | 3244 |
| 3244 | 3245 |
| 3245 } // namespace internal | 3246 } // namespace internal |
| 3246 } // namespace v8 | 3247 } // namespace v8 |
| 3247 | 3248 |
| 3248 #endif // V8_TARGET_ARCH_MIPS64 | 3249 #endif // V8_TARGET_ARCH_MIPS64 |
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