Mercurial > hg > truffle
annotate src/share/vm/ci/ciMethodBlocks.hpp @ 14518:d8041d695d19
Merged with jdk9/dev/hotspot changeset 3812c088b945
| author | twisti |
|---|---|
| date | Tue, 11 Mar 2014 18:45:59 -0700 |
| parents | f95d63e2154a |
| children |
| rev | line source |
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| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 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 | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_CI_CIMETHODBLOCKS_HPP |
| 26 #define SHARE_VM_CI_CIMETHODBLOCKS_HPP | |
| 27 | |
| 28 #include "ci/ciMethod.hpp" | |
| 29 #include "memory/resourceArea.hpp" | |
| 30 #include "utilities/growableArray.hpp" | |
| 31 | |
| 0 | 32 |
| 33 class ciBlock; | |
| 34 | |
| 35 typedef short ciBlockIndex; | |
| 36 | |
| 37 class ciMethodBlocks : public ResourceObj { | |
| 38 private: | |
| 39 ciMethod *_method; | |
| 40 Arena *_arena; | |
| 41 GrowableArray<ciBlock *> *_blocks; | |
| 42 ciBlock **_bci_to_block; | |
| 43 int _num_blocks; | |
| 44 int _code_size; | |
| 45 | |
| 46 void do_analysis(); | |
| 47 public: | |
| 48 ciMethodBlocks(Arena *arena, ciMethod *meth); | |
| 49 | |
| 50 ciBlock *block_containing(int bci); | |
| 51 ciBlock *block(int index) { return _blocks->at(index); } | |
| 52 ciBlock *make_block_at(int bci); | |
| 53 ciBlock *split_block_at(int bci); | |
| 54 bool is_block_start(int bci); | |
| 55 int num_blocks() { return _num_blocks;} | |
| 56 void clear_processed(); | |
| 57 | |
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58 ciBlock *make_dummy_block(); // a block not associated with a bci |
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59 |
| 0 | 60 #ifndef PRODUCT |
| 61 void dump(); | |
| 62 #endif | |
| 63 }; | |
| 64 | |
| 65 class ciBlock : public ResourceObj { | |
| 66 private: | |
| 67 int _idx; | |
| 68 int _start_bci; | |
| 69 int _limit_bci; | |
| 70 int _control_bci; | |
| 71 uint _flags; | |
| 72 int _ex_start_bci; | |
| 73 int _ex_limit_bci; | |
| 74 #ifndef PRODUCT | |
| 75 ciMethod *_method; | |
| 76 #endif | |
| 77 enum { | |
| 78 Processed = (1 << 0), | |
| 79 Handler = (1 << 1), | |
| 80 MayThrow = (1 << 2), | |
| 81 DoesJsr = (1 << 3), | |
| 82 DoesRet = (1 << 4), | |
| 83 RetTarget = (1 << 5), | |
| 84 HasHandler = (1 << 6) | |
| 85 }; | |
| 86 | |
| 87 | |
| 88 public: | |
| 89 enum { | |
| 90 fall_through_bci = -1 | |
| 91 }; | |
| 92 | |
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93 ciBlock(ciMethod *method, int index, int start_bci); |
| 0 | 94 int start_bci() const { return _start_bci; } |
| 95 int limit_bci() const { return _limit_bci; } | |
| 96 int control_bci() const { return _control_bci; } | |
| 97 int index() const { return _idx; } | |
| 98 void set_start_bci(int bci) { _start_bci = bci; } | |
| 99 void set_limit_bci(int bci) { _limit_bci = bci; } | |
| 100 void set_control_bci(int bci) { _control_bci = bci;} | |
| 101 void set_exception_range(int start_bci, int limit_bci); | |
| 102 int ex_start_bci() const { return _ex_start_bci; } | |
| 103 int ex_limit_bci() const { return _ex_limit_bci; } | |
| 104 bool contains(int bci) const { return start_bci() <= bci && bci < limit_bci(); } | |
| 105 | |
| 106 // flag handling | |
| 107 bool processed() const { return (_flags & Processed) != 0; } | |
| 108 bool is_handler() const { return (_flags & Handler) != 0; } | |
| 109 bool may_throw() const { return (_flags & MayThrow) != 0; } | |
| 110 bool does_jsr() const { return (_flags & DoesJsr) != 0; } | |
| 111 bool does_ret() const { return (_flags & DoesRet) != 0; } | |
| 112 bool has_handler() const { return (_flags & HasHandler) != 0; } | |
| 113 bool is_ret_target() const { return (_flags & RetTarget) != 0; } | |
| 114 void set_processed() { _flags |= Processed; } | |
| 115 void clear_processed() { _flags &= ~Processed; } | |
| 116 void set_handler() { _flags |= Handler; } | |
| 117 void set_may_throw() { _flags |= MayThrow; } | |
| 118 void set_does_jsr() { _flags |= DoesJsr; } | |
| 119 void clear_does_jsr() { _flags &= ~DoesJsr; } | |
| 120 void set_does_ret() { _flags |= DoesRet; } | |
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121 void clear_does_ret() { _flags &= ~DoesRet; } |
| 0 | 122 void set_is_ret_target() { _flags |= RetTarget; } |
| 123 void set_has_handler() { _flags |= HasHandler; } | |
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124 void clear_exception_handler() { _flags &= ~Handler; _ex_start_bci = -1; _ex_limit_bci = -1; } |
| 0 | 125 #ifndef PRODUCT |
| 126 ciMethod *method() const { return _method; } | |
| 127 void dump(); | |
| 128 void print_on(outputStream* st) const PRODUCT_RETURN; | |
| 129 #endif | |
| 130 }; | |
| 1972 | 131 |
| 132 #endif // SHARE_VM_CI_CIMETHODBLOCKS_HPP |