Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/vm/ci/ciArrayKlass.cpp	Sat Dec 01 00:00:00 2007 +0000
     1.3 @@ -0,0 +1,102 @@
     1.4 +/*
     1.5 + * Copyright 1999-2005 Sun Microsystems, Inc.  All Rights Reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
    1.24 + * have any questions.
    1.25 + *
    1.26 + */
    1.27 +
    1.28 +#include "incls/_precompiled.incl"
    1.29 +#include "incls/_ciArrayKlass.cpp.incl"
    1.30 +
    1.31 +// ciArrayKlass
    1.32 +//
    1.33 +// This class represents a klassOop in the HotSpot virtual machine
    1.34 +// whose Klass part in an arrayKlass.
    1.35 +
    1.36 +// ------------------------------------------------------------------
    1.37 +// ciArrayKlass::ciArrayKlass
    1.38 +//
    1.39 +// Loaded array klass.
    1.40 +ciArrayKlass::ciArrayKlass(KlassHandle h_k) : ciKlass(h_k) {
    1.41 +  assert(get_Klass()->oop_is_array(), "wrong type");
    1.42 +  _dimension = get_arrayKlass()->dimension();
    1.43 +}
    1.44 +
    1.45 +// ------------------------------------------------------------------
    1.46 +// ciArrayKlass::ciArrayKlass
    1.47 +//
    1.48 +// Unloaded array klass.
    1.49 +ciArrayKlass::ciArrayKlass(ciSymbol* name, int dimension, ciKlass* klass)
    1.50 +  : ciKlass(name, klass) {
    1.51 +  _dimension = dimension;
    1.52 +}
    1.53 +
    1.54 +// ------------------------------------------------------------------
    1.55 +// ciArrayKlass::element_type
    1.56 +//
    1.57 +// What type is obtained when this array is indexed once?
    1.58 +ciType* ciArrayKlass::element_type() {
    1.59 +  if (is_type_array_klass()) {
    1.60 +    return ciType::make(as_type_array_klass()->element_type());
    1.61 +  } else {
    1.62 +    return as_obj_array_klass()->element_klass()->as_klass();
    1.63 +  }
    1.64 +}
    1.65 +
    1.66 +
    1.67 +// ------------------------------------------------------------------
    1.68 +// ciArrayKlass::base_element_type
    1.69 +//
    1.70 +// What type is obtained when this array is indexed as many times as possible?
    1.71 +ciType* ciArrayKlass::base_element_type() {
    1.72 +  if (is_type_array_klass()) {
    1.73 +    return ciType::make(as_type_array_klass()->element_type());
    1.74 +  } else {
    1.75 +    ciKlass* ek = as_obj_array_klass()->base_element_klass();
    1.76 +    if (ek->is_type_array_klass()) {
    1.77 +      return ciType::make(ek->as_type_array_klass()->element_type());
    1.78 +    }
    1.79 +    return ek;
    1.80 +  }
    1.81 +}
    1.82 +
    1.83 +
    1.84 +// ------------------------------------------------------------------
    1.85 +// ciArrayKlass::is_leaf_type
    1.86 +bool ciArrayKlass::is_leaf_type() {
    1.87 +  if (is_type_array_klass()) {
    1.88 +    return true;
    1.89 +  } else {
    1.90 +    return as_obj_array_klass()->base_element_klass()->is_leaf_type();
    1.91 +  }
    1.92 +}
    1.93 +
    1.94 +
    1.95 +// ------------------------------------------------------------------
    1.96 +// ciArrayKlass::base_element_type
    1.97 +//
    1.98 +// What type is obtained when this array is indexed as many times as possible?
    1.99 +ciArrayKlass* ciArrayKlass::make(ciType* element_type) {
   1.100 +  if (element_type->is_primitive_type()) {
   1.101 +    return ciTypeArrayKlass::make(element_type->basic_type());
   1.102 +  } else {
   1.103 +    return ciObjArrayKlass::make(element_type->as_klass());
   1.104 +  }
   1.105 +}