Mercurial > hg > truffle
annotate src/share/vm/oops/typeArrayOop.hpp @ 20579:e4bd8244c085
8049542: C2: assert(size_in_words <= (julong)max_jint) failed: no overflow
Summary: Added juint cast to avoid gcc problem we have on one of our platforms.
Reviewed-by: dholmes, roland
| author | kvn |
|---|---|
| date | Tue, 05 Aug 2014 14:44:18 -0700 |
| parents | ce8f6bb717c9 |
| children | 7848fc12602b |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, 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_OOPS_TYPEARRAYOOP_HPP |
| 26 #define SHARE_VM_OOPS_TYPEARRAYOOP_HPP | |
| 27 | |
| 28 #include "oops/arrayOop.hpp" | |
| 29 #include "oops/typeArrayKlass.hpp" | |
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30 #include "runtime/orderAccess.inline.hpp" |
| 1972 | 31 |
| 0 | 32 // A typeArrayOop is an array containing basic types (non oop elements). |
| 33 // It is used for arrays of {characters, singles, doubles, bytes, shorts, integers, longs} | |
| 34 #include <limits.h> | |
| 35 | |
| 36 class typeArrayOopDesc : public arrayOopDesc { | |
| 37 protected: | |
| 38 jchar* char_base() const { return (jchar*) base(T_CHAR); } | |
| 39 jboolean* bool_base() const { return (jboolean*)base(T_BOOLEAN); } | |
| 40 jbyte* byte_base() const { return (jbyte*) base(T_BYTE); } | |
| 41 jint* int_base() const { return (jint*) base(T_INT); } | |
| 42 jlong* long_base() const { return (jlong*) base(T_LONG); } | |
| 43 jshort* short_base() const { return (jshort*) base(T_SHORT); } | |
| 44 jfloat* float_base() const { return (jfloat*) base(T_FLOAT); } | |
| 45 jdouble* double_base() const { return (jdouble*) base(T_DOUBLE); } | |
| 46 | |
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47 friend class TypeArrayKlass; |
| 0 | 48 |
| 49 public: | |
| 50 jbyte* byte_at_addr(int which) const { | |
| 51 assert(is_within_bounds(which), "index out of bounds"); | |
| 52 return &byte_base()[which]; | |
| 53 } | |
| 54 | |
| 55 jboolean* bool_at_addr(int which) const { | |
| 56 assert(is_within_bounds(which), "index out of bounds"); | |
| 57 return &bool_base()[which]; | |
| 58 } | |
| 59 | |
| 60 jchar* char_at_addr(int which) const { | |
| 61 assert(is_within_bounds(which), "index out of bounds"); | |
| 62 return &char_base()[which]; | |
| 63 } | |
| 64 | |
| 65 jint* int_at_addr(int which) const { | |
| 66 assert(is_within_bounds(which), "index out of bounds"); | |
| 67 return &int_base()[which]; | |
| 68 } | |
| 69 | |
| 70 jshort* short_at_addr(int which) const { | |
| 71 assert(is_within_bounds(which), "index out of bounds"); | |
| 72 return &short_base()[which]; | |
| 73 } | |
| 74 | |
| 75 jushort* ushort_at_addr(int which) const { // for field descriptor arrays | |
| 76 assert(is_within_bounds(which), "index out of bounds"); | |
| 77 return (jushort*) &short_base()[which]; | |
| 78 } | |
| 79 | |
| 80 jlong* long_at_addr(int which) const { | |
| 81 assert(is_within_bounds(which), "index out of bounds"); | |
| 82 return &long_base()[which]; | |
| 83 } | |
| 84 | |
| 85 jfloat* float_at_addr(int which) const { | |
| 86 assert(is_within_bounds(which), "index out of bounds"); | |
| 87 return &float_base()[which]; | |
| 88 } | |
| 89 | |
| 90 jdouble* double_at_addr(int which) const { | |
| 91 assert(is_within_bounds(which), "index out of bounds"); | |
| 92 return &double_base()[which]; | |
| 93 } | |
| 94 | |
| 95 jbyte byte_at(int which) const { return *byte_at_addr(which); } | |
| 96 void byte_at_put(int which, jbyte contents) { *byte_at_addr(which) = contents; } | |
| 97 | |
| 98 jboolean bool_at(int which) const { return *bool_at_addr(which); } | |
| 99 void bool_at_put(int which, jboolean contents) { *bool_at_addr(which) = contents; } | |
| 100 | |
| 101 jchar char_at(int which) const { return *char_at_addr(which); } | |
| 102 void char_at_put(int which, jchar contents) { *char_at_addr(which) = contents; } | |
| 103 | |
| 104 jint int_at(int which) const { return *int_at_addr(which); } | |
| 105 void int_at_put(int which, jint contents) { *int_at_addr(which) = contents; } | |
| 106 | |
| 107 jshort short_at(int which) const { return *short_at_addr(which); } | |
| 108 void short_at_put(int which, jshort contents) { *short_at_addr(which) = contents; } | |
| 109 | |
| 110 jushort ushort_at(int which) const { return *ushort_at_addr(which); } | |
| 111 void ushort_at_put(int which, jushort contents) { *ushort_at_addr(which) = contents; } | |
| 112 | |
| 113 jlong long_at(int which) const { return *long_at_addr(which); } | |
| 114 void long_at_put(int which, jlong contents) { *long_at_addr(which) = contents; } | |
| 115 | |
| 116 jfloat float_at(int which) const { return *float_at_addr(which); } | |
| 117 void float_at_put(int which, jfloat contents) { *float_at_addr(which) = contents; } | |
| 118 | |
| 119 jdouble double_at(int which) const { return *double_at_addr(which); } | |
| 120 void double_at_put(int which, jdouble contents) { *double_at_addr(which) = contents; } | |
| 121 | |
| 122 jbyte byte_at_acquire(int which) const { return OrderAccess::load_acquire(byte_at_addr(which)); } | |
| 123 void release_byte_at_put(int which, jbyte contents) { OrderAccess::release_store(byte_at_addr(which), contents); } | |
| 124 | |
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125 // Java thinks metadata arrays are just arrays of either long or int, since |
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126 // there doesn't seem to be T_ADDRESS, so this is a bit of unfortunate |
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127 // casting |
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128 #ifdef _LP64 |
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129 Metadata* metadata_at(int which) const { |
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130 return (Metadata*)*long_at_addr(which); } |
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131 void metadata_at_put(int which, Metadata* contents) { |
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da91efe96a93
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132 *long_at_addr(which) = (long)contents; |
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da91efe96a93
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133 } |
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134 #else |
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135 Metadata* metadata_at(int which) const { |
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da91efe96a93
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136 return (Metadata*)*int_at_addr(which); } |
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da91efe96a93
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coleenp
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137 void metadata_at_put(int which, Metadata* contents) { |
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da91efe96a93
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138 *int_at_addr(which) = (int)contents; |
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da91efe96a93
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139 } |
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140 #endif // _LP64 |
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141 |
| 0 | 142 // Sizing |
| 143 | |
| 144 // Returns the number of words necessary to hold an array of "len" | |
| 145 // elements each of the given "byte_size". | |
| 146 private: | |
| 147 static int object_size(int lh, int length) { | |
| 148 int instance_header_size = Klass::layout_helper_header_size(lh); | |
| 149 int element_shift = Klass::layout_helper_log2_element_size(lh); | |
| 150 DEBUG_ONLY(BasicType etype = Klass::layout_helper_element_type(lh)); | |
| 151 assert(length <= arrayOopDesc::max_array_length(etype), "no overflow"); | |
| 152 | |
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153 julong size_in_bytes = (juint)length; |
| 0 | 154 size_in_bytes <<= element_shift; |
| 155 size_in_bytes += instance_header_size; | |
| 156 julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize); | |
| 157 assert(size_in_words <= (julong)max_jint, "no overflow"); | |
| 158 | |
| 159 return align_object_size((intptr_t)size_in_words); | |
| 160 } | |
| 161 | |
| 162 public: | |
| 163 int object_size() { | |
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164 TypeArrayKlass* tk = TypeArrayKlass::cast(klass()); |
| 0 | 165 return object_size(tk->layout_helper(), length()); |
| 166 } | |
| 167 }; | |
| 1972 | 168 |
| 169 #endif // SHARE_VM_OOPS_TYPEARRAYOOP_HPP |