jdk8-mips64-public/hotspot: src/share/vm/ci/ciArrayKlass.cpp@194b8e3a2fc4

6384206: Phis which are later unneeded are impairing our ability to inline based on static types
Reviewed-by: rasbold, jrose

     1 /*

     2  * Copyright 1999-2005 Sun Microsystems, Inc.  All Rights Reserved.

     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  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 #include "incls/_precompiled.incl"

    26 #include "incls/_ciArrayKlass.cpp.incl"

    28 // ciArrayKlass

    29 //

    30 // This class represents a klassOop in the HotSpot virtual machine

    31 // whose Klass part in an arrayKlass.

    33 // ------------------------------------------------------------------

    34 // ciArrayKlass::ciArrayKlass

    35 //

    36 // Loaded array klass.

    37 ciArrayKlass::ciArrayKlass(KlassHandle h_k) : ciKlass(h_k) {

    38   assert(get_Klass()->oop_is_array(), "wrong type");

    39   _dimension = get_arrayKlass()->dimension();

    40 }

    42 // ------------------------------------------------------------------

    43 // ciArrayKlass::ciArrayKlass

    44 //

    45 // Unloaded array klass.

    46 ciArrayKlass::ciArrayKlass(ciSymbol* name, int dimension, ciKlass* klass)

    47   : ciKlass(name, klass) {

    48   _dimension = dimension;

    49 }

    51 // ------------------------------------------------------------------

    52 // ciArrayKlass::element_type

    53 //

    54 // What type is obtained when this array is indexed once?

    55 ciType* ciArrayKlass::element_type() {

    56   if (is_type_array_klass()) {

    57     return ciType::make(as_type_array_klass()->element_type());

    58   } else {

    59     return as_obj_array_klass()->element_klass()->as_klass();

    60   }

    61 }

    64 // ------------------------------------------------------------------

    65 // ciArrayKlass::base_element_type

    66 //

    67 // What type is obtained when this array is indexed as many times as possible?

    68 ciType* ciArrayKlass::base_element_type() {

    69   if (is_type_array_klass()) {

    70     return ciType::make(as_type_array_klass()->element_type());

    71   } else {

    72     ciKlass* ek = as_obj_array_klass()->base_element_klass();

    73     if (ek->is_type_array_klass()) {

    74       return ciType::make(ek->as_type_array_klass()->element_type());

    75     }

    76     return ek;

    77   }

    78 }

    81 // ------------------------------------------------------------------

    82 // ciArrayKlass::is_leaf_type

    83 bool ciArrayKlass::is_leaf_type() {

    84   if (is_type_array_klass()) {

    85     return true;

    86   } else {

    87     return as_obj_array_klass()->base_element_klass()->is_leaf_type();

    88   }

    89 }

    92 // ------------------------------------------------------------------

    93 // ciArrayKlass::base_element_type

    94 //

    95 // What type is obtained when this array is indexed as many times as possible?

    96 ciArrayKlass* ciArrayKlass::make(ciType* element_type) {

    97   if (element_type->is_primitive_type()) {

    98     return ciTypeArrayKlass::make(element_type->basic_type());

    99   } else {

   100     return ciObjArrayKlass::make(element_type->as_klass());

   101   }

   102 }

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