jdk8-mips64-public/hotspot: src/share/vm/ci/ciObjArrayKlass.hpp@b2ee5dc63353

8024070: C2 needs some form of type speculation
Summary: record unused type profile information with type system, propagate and use it.
Reviewed-by: kvn, twisti

     1 /*

     2  * Copyright (c) 1999, 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #ifndef SHARE_VM_CI_CIOBJARRAYKLASS_HPP

    26 #define SHARE_VM_CI_CIOBJARRAYKLASS_HPP

    28 #include "ci/ciArrayKlass.hpp"

    30 // ciObjArrayKlass

    31 //

    32 // This class represents a Klass* in the HotSpot virtual machine

    33 // whose Klass part is an ObjArrayKlass.

    34 class ciObjArrayKlass : public ciArrayKlass {

    35   CI_PACKAGE_ACCESS

    36   friend class ciEnv;

    38 private:

    39   ciKlass* _element_klass;

    40   ciKlass* _base_element_klass;

    42 protected:

    43   ciObjArrayKlass(KlassHandle h_k);

    44   ciObjArrayKlass(ciSymbol* array_name,

    45                   ciKlass* base_element_klass,

    46                   int dimension);

    48   ObjArrayKlass* get_ObjArrayKlass() {

    49     return (ObjArrayKlass*)get_Klass();

    50   }

    52   static ciObjArrayKlass* make_impl(ciKlass* element_klass);

    53   static ciSymbol* construct_array_name(ciSymbol* element_name,

    54                                         int       dimension);

    56   const char* type_string() { return "ciObjArrayKlass"; }

    58   oop     loader()        { return _base_element_klass->loader(); }

    59   jobject loader_handle() { return _base_element_klass->loader_handle(); }

    61   oop     protection_domain()        { return _base_element_klass->protection_domain(); }

    62   jobject protection_domain_handle() { return _base_element_klass->protection_domain_handle(); }

    65 public:

    66   // The one-level type of the array elements.

    67   ciKlass* element_klass();

    69   // The innermost type of the array elements.

    70   ciKlass* base_element_klass() { return _base_element_klass; }

    72   // What kind of ciObject is this?

    73   bool is_obj_array_klass() const { return true; }

    75   static ciObjArrayKlass* make(ciKlass* element_klass);

    77   virtual ciKlass* exact_klass();

    78 };

    80 #endif // SHARE_VM_CI_CIOBJARRAYKLASS_HPP

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

src/share/vm/ci/ciObjArrayKlass.hpp@b2ee5dc63353

src/share/vm/ci/ciObjArrayKlass.hpp