jdk8-mips64-public/hotspot: src/share/vm/oops/typeArrayOop.hpp@4735d2c84362 (annotated)

src/share/vm/oops/typeArrayOop.hpp@4735d2c84362 (annotated)

src/share/vm/oops/typeArrayOop.hpp

Thu, 11 Oct 2012 12:25:42 -0400

author: kamg
date: Thu, 11 Oct 2012 12:25:42 -0400
changeset 4245: 4735d2c84362
parent 4142: d8ce2825b193
child 6461: bdd155477289
permissions: -rw-r--r--

7200776: Implement default methods in interfaces
Summary: Add generic type analysis and default method selection algorithms
Reviewed-by: coleenp, acorn

 /*
  * 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

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/oops/typeArrayOop.hpp@4735d2c84362 (annotated)

src/share/vm/oops/typeArrayOop.hpp