Mercurial > hg > graal-compiler
view src/share/vm/oops/typeArrayOop.hpp @ 17699:54436d3b2a91 hs25.20-b05
Merge
author | amurillo |
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date | Fri, 28 Feb 2014 08:43:42 -0800 |
parents | d8ce2825b193 |
children | bdd155477289 |
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/* * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_OOPS_TYPEARRAYOOP_HPP #define SHARE_VM_OOPS_TYPEARRAYOOP_HPP #include "oops/arrayOop.hpp" #include "oops/typeArrayKlass.hpp" #ifdef TARGET_OS_ARCH_linux_x86 # include "orderAccess_linux_x86.inline.hpp" #endif #ifdef TARGET_OS_ARCH_linux_sparc # include "orderAccess_linux_sparc.inline.hpp" #endif #ifdef TARGET_OS_ARCH_linux_zero # include "orderAccess_linux_zero.inline.hpp" #endif #ifdef TARGET_OS_ARCH_solaris_x86 # include "orderAccess_solaris_x86.inline.hpp" #endif #ifdef TARGET_OS_ARCH_solaris_sparc # include "orderAccess_solaris_sparc.inline.hpp" #endif #ifdef TARGET_OS_ARCH_windows_x86 # include "orderAccess_windows_x86.inline.hpp" #endif #ifdef TARGET_OS_ARCH_linux_arm # include "orderAccess_linux_arm.inline.hpp" #endif #ifdef TARGET_OS_ARCH_linux_ppc # include "orderAccess_linux_ppc.inline.hpp" #endif #ifdef TARGET_OS_ARCH_bsd_x86 # include "orderAccess_bsd_x86.inline.hpp" #endif #ifdef TARGET_OS_ARCH_bsd_zero # include "orderAccess_bsd_zero.inline.hpp" #endif // A typeArrayOop is an array containing basic types (non oop elements). // It is used for arrays of {characters, singles, doubles, bytes, shorts, integers, longs} #include <limits.h> class typeArrayOopDesc : public arrayOopDesc { protected: jchar* char_base() const { return (jchar*) base(T_CHAR); } jboolean* bool_base() const { return (jboolean*)base(T_BOOLEAN); } jbyte* byte_base() const { return (jbyte*) base(T_BYTE); } jint* int_base() const { return (jint*) base(T_INT); } jlong* long_base() const { return (jlong*) base(T_LONG); } jshort* short_base() const { return (jshort*) base(T_SHORT); } jfloat* float_base() const { return (jfloat*) base(T_FLOAT); } jdouble* double_base() const { return (jdouble*) base(T_DOUBLE); } friend class TypeArrayKlass; public: jbyte* byte_at_addr(int which) const { assert(is_within_bounds(which), "index out of bounds"); return &byte_base()[which]; } jboolean* bool_at_addr(int which) const { assert(is_within_bounds(which), "index out of bounds"); return &bool_base()[which]; } jchar* char_at_addr(int which) const { assert(is_within_bounds(which), "index out of bounds"); return &char_base()[which]; } jint* int_at_addr(int which) const { assert(is_within_bounds(which), "index out of bounds"); return &int_base()[which]; } jshort* short_at_addr(int which) const { assert(is_within_bounds(which), "index out of bounds"); return &short_base()[which]; } jushort* ushort_at_addr(int which) const { // for field descriptor arrays assert(is_within_bounds(which), "index out of bounds"); return (jushort*) &short_base()[which]; } jlong* long_at_addr(int which) const { assert(is_within_bounds(which), "index out of bounds"); return &long_base()[which]; } jfloat* float_at_addr(int which) const { assert(is_within_bounds(which), "index out of bounds"); return &float_base()[which]; } jdouble* double_at_addr(int which) const { assert(is_within_bounds(which), "index out of bounds"); return &double_base()[which]; } jbyte byte_at(int which) const { return *byte_at_addr(which); } void byte_at_put(int which, jbyte contents) { *byte_at_addr(which) = contents; } jboolean bool_at(int which) const { return *bool_at_addr(which); } void bool_at_put(int which, jboolean contents) { *bool_at_addr(which) = contents; } jchar char_at(int which) const { return *char_at_addr(which); } void char_at_put(int which, jchar contents) { *char_at_addr(which) = contents; } jint int_at(int which) const { return *int_at_addr(which); } void int_at_put(int which, jint contents) { *int_at_addr(which) = contents; } jshort short_at(int which) const { return *short_at_addr(which); } void short_at_put(int which, jshort contents) { *short_at_addr(which) = contents; } jushort ushort_at(int which) const { return *ushort_at_addr(which); } void ushort_at_put(int which, jushort contents) { *ushort_at_addr(which) = contents; } jlong long_at(int which) const { return *long_at_addr(which); } void long_at_put(int which, jlong contents) { *long_at_addr(which) = contents; } jfloat float_at(int which) const { return *float_at_addr(which); } void float_at_put(int which, jfloat contents) { *float_at_addr(which) = contents; } jdouble double_at(int which) const { return *double_at_addr(which); } void double_at_put(int which, jdouble contents) { *double_at_addr(which) = contents; } jbyte byte_at_acquire(int which) const { return OrderAccess::load_acquire(byte_at_addr(which)); } void release_byte_at_put(int which, jbyte contents) { OrderAccess::release_store(byte_at_addr(which), contents); } // Java thinks metadata arrays are just arrays of either long or int, since // there doesn't seem to be T_ADDRESS, so this is a bit of unfortunate // casting #ifdef _LP64 Metadata* metadata_at(int which) const { return (Metadata*)*long_at_addr(which); } void metadata_at_put(int which, Metadata* contents) { *long_at_addr(which) = (long)contents; } #else Metadata* metadata_at(int which) const { return (Metadata*)*int_at_addr(which); } void metadata_at_put(int which, Metadata* contents) { *int_at_addr(which) = (int)contents; } #endif // _LP64 // Sizing // Returns the number of words necessary to hold an array of "len" // elements each of the given "byte_size". private: static int object_size(int lh, int length) { int instance_header_size = Klass::layout_helper_header_size(lh); int element_shift = Klass::layout_helper_log2_element_size(lh); DEBUG_ONLY(BasicType etype = Klass::layout_helper_element_type(lh)); assert(length <= arrayOopDesc::max_array_length(etype), "no overflow"); julong size_in_bytes = length; size_in_bytes <<= element_shift; size_in_bytes += instance_header_size; julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize); assert(size_in_words <= (julong)max_jint, "no overflow"); return align_object_size((intptr_t)size_in_words); } public: int object_size() { TypeArrayKlass* tk = TypeArrayKlass::cast(klass()); return object_size(tk->layout_helper(), length()); } }; #endif // SHARE_VM_OOPS_TYPEARRAYOOP_HPP