Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/oops/generateOopMap.cpp
src/share/vm/oops/generateOopMap.cpp
- changeset 2462
- 8012aa3ccede
- parent 2314
- f95d63e2154a
- child 2497
- 3582bf76420e
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| 2450:34d64ad817f4 | 2462:8012aa3ccede |
|---|---|
| 1 /* | 1 /* |
| 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | 4 * |
| 5 * This code is free software; you can redistribute it and/or modify it | 5 * This code is free software; you can redistribute it and/or modify it |
| 6 * under the terms of the GNU General Public License version 2 only, as | 6 * under the terms of the GNU General Public License version 2 only, as |
| 7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
| 533 break; | 533 break; |
| 534 case Bytecodes::_goto_w: | 534 case Bytecodes::_goto_w: |
| 535 (*jmpFct)(this, bcs->dest_w(), data); | 535 (*jmpFct)(this, bcs->dest_w(), data); |
| 536 break; | 536 break; |
| 537 case Bytecodes::_tableswitch: | 537 case Bytecodes::_tableswitch: |
| 538 { Bytecode_tableswitch *tableswitch = Bytecode_tableswitch_at(bcs->bcp()); | 538 { Bytecode_tableswitch tableswitch(method(), bcs->bcp()); |
| 539 int len = tableswitch->length(); | 539 int len = tableswitch.length(); |
| 540 | 540 |
| 541 (*jmpFct)(this, bci + tableswitch->default_offset(), data); /* Default. jump address */ | 541 (*jmpFct)(this, bci + tableswitch.default_offset(), data); /* Default. jump address */ |
| 542 while (--len >= 0) { | 542 while (--len >= 0) { |
| 543 (*jmpFct)(this, bci + tableswitch->dest_offset_at(len), data); | 543 (*jmpFct)(this, bci + tableswitch.dest_offset_at(len), data); |
| 544 } | 544 } |
| 545 break; | 545 break; |
| 546 } | 546 } |
| 547 | 547 |
| 548 case Bytecodes::_lookupswitch: | 548 case Bytecodes::_lookupswitch: |
| 549 { Bytecode_lookupswitch *lookupswitch = Bytecode_lookupswitch_at(bcs->bcp()); | 549 { Bytecode_lookupswitch lookupswitch(method(), bcs->bcp()); |
| 550 int npairs = lookupswitch->number_of_pairs(); | 550 int npairs = lookupswitch.number_of_pairs(); |
| 551 (*jmpFct)(this, bci + lookupswitch->default_offset(), data); /* Default. */ | 551 (*jmpFct)(this, bci + lookupswitch.default_offset(), data); /* Default. */ |
| 552 while(--npairs >= 0) { | 552 while(--npairs >= 0) { |
| 553 LookupswitchPair *pair = lookupswitch->pair_at(npairs); | 553 LookupswitchPair pair = lookupswitch.pair_at(npairs); |
| 554 (*jmpFct)(this, bci + pair->offset(), data); | 554 (*jmpFct)(this, bci + pair.offset(), data); |
| 555 } | 555 } |
| 556 break; | 556 break; |
| 557 } | 557 } |
| 558 case Bytecodes::_jsr: | 558 case Bytecodes::_jsr: |
| 559 assert(bcs->is_wide()==false, "sanity check"); | 559 assert(bcs->is_wide()==false, "sanity check"); |
| 975 bb->_state = basicBlockState + blockNum * _state_len; | 975 bb->_state = basicBlockState + blockNum * _state_len; |
| 976 | 976 |
| 977 #ifdef ASSERT | 977 #ifdef ASSERT |
| 978 if (blockNum + 1 < bbNo) { | 978 if (blockNum + 1 < bbNo) { |
| 979 address bcp = _method->bcp_from(bb->_end_bci); | 979 address bcp = _method->bcp_from(bb->_end_bci); |
| 980 int bc_len = Bytecodes::java_length_at(bcp); | 980 int bc_len = Bytecodes::java_length_at(_method(), bcp); |
| 981 assert(bb->_end_bci + bc_len == bb[1]._bci, "unmatched bci info in basicblock"); | 981 assert(bb->_end_bci + bc_len == bb[1]._bci, "unmatched bci info in basicblock"); |
| 982 } | 982 } |
| 983 #endif | 983 #endif |
| 984 } | 984 } |
| 985 #ifdef ASSERT | 985 #ifdef ASSERT |
| 986 { BasicBlock *bb = &_basic_blocks[bbNo-1]; | 986 { BasicBlock *bb = &_basic_blocks[bbNo-1]; |
| 987 address bcp = _method->bcp_from(bb->_end_bci); | 987 address bcp = _method->bcp_from(bb->_end_bci); |
| 988 int bc_len = Bytecodes::java_length_at(bcp); | 988 int bc_len = Bytecodes::java_length_at(_method(), bcp); |
| 989 assert(bb->_end_bci + bc_len == _method->code_size(), "wrong end bci"); | 989 assert(bb->_end_bci + bc_len == _method->code_size(), "wrong end bci"); |
| 990 } | 990 } |
| 991 #endif | 991 #endif |
| 992 | 992 |
| 993 // Mark all alive blocks | 993 // Mark all alive blocks |
| 1835 } | 1835 } |
| 1836 | 1836 |
| 1837 | 1837 |
| 1838 | 1838 |
| 1839 void GenerateOopMap::do_ldc(int bci) { | 1839 void GenerateOopMap::do_ldc(int bci) { |
| 1840 Bytecode_loadconstant* ldc = Bytecode_loadconstant_at(method(), bci); | 1840 Bytecode_loadconstant ldc(method(), bci); |
| 1841 constantPoolOop cp = method()->constants(); | 1841 constantPoolOop cp = method()->constants(); |
| 1842 BasicType bt = ldc->result_type(); | 1842 BasicType bt = ldc.result_type(); |
| 1843 CellTypeState cts = (bt == T_OBJECT) ? CellTypeState::make_line_ref(bci) : valCTS; | 1843 CellTypeState cts = (bt == T_OBJECT) ? CellTypeState::make_line_ref(bci) : valCTS; |
| 1844 // Make sure bt==T_OBJECT is the same as old code (is_pointer_entry). | 1844 // Make sure bt==T_OBJECT is the same as old code (is_pointer_entry). |
| 1845 // Note that CONSTANT_MethodHandle entries are u2 index pairs, not pointer-entries, | 1845 // Note that CONSTANT_MethodHandle entries are u2 index pairs, not pointer-entries, |
| 1846 // and they are processed by _fast_aldc and the CP cache. | 1846 // and they are processed by _fast_aldc and the CP cache. |
| 1847 assert((ldc->has_cache_index() || cp->is_pointer_entry(ldc->pool_index())) | 1847 assert((ldc.has_cache_index() || cp->is_pointer_entry(ldc.pool_index())) |
| 1848 ? (bt == T_OBJECT) : true, "expected object type"); | 1848 ? (bt == T_OBJECT) : true, "expected object type"); |
| 1849 ppush1(cts); | 1849 ppush1(cts); |
| 1850 } | 1850 } |
| 1851 | 1851 |
| 1852 void GenerateOopMap::do_multianewarray(int dims, int bci) { | 1852 void GenerateOopMap::do_multianewarray(int dims, int bci) { |
| 2341 // bcN : either _aload or _astore | 2341 // bcN : either _aload or _astore |
| 2342 // bc0 : either _aload_0 or _astore_0 | 2342 // bc0 : either _aload_0 or _astore_0 |
| 2343 bool GenerateOopMap::rewrite_load_or_store(BytecodeStream *bcs, Bytecodes::Code bcN, Bytecodes::Code bc0, unsigned int varNo) { | 2343 bool GenerateOopMap::rewrite_load_or_store(BytecodeStream *bcs, Bytecodes::Code bcN, Bytecodes::Code bc0, unsigned int varNo) { |
| 2344 assert(bcN == Bytecodes::_astore || bcN == Bytecodes::_aload, "wrong argument (bcN)"); | 2344 assert(bcN == Bytecodes::_astore || bcN == Bytecodes::_aload, "wrong argument (bcN)"); |
| 2345 assert(bc0 == Bytecodes::_astore_0 || bc0 == Bytecodes::_aload_0, "wrong argument (bc0)"); | 2345 assert(bc0 == Bytecodes::_astore_0 || bc0 == Bytecodes::_aload_0, "wrong argument (bc0)"); |
| 2346 int ilen = Bytecodes::length_at(bcs->bcp()); | 2346 int ilen = Bytecodes::length_at(_method(), bcs->bcp()); |
| 2347 int newIlen; | 2347 int newIlen; |
| 2348 | 2348 |
| 2349 if (ilen == 4) { | 2349 if (ilen == 4) { |
| 2350 // Original instruction was wide; keep it wide for simplicity | 2350 // Original instruction was wide; keep it wide for simplicity |
| 2351 newIlen = 4; | 2351 newIlen = 4; |
