jdk8-mips64-public/hotspot: src/share/vm/ci/ciTypeArray.cpp@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) 2005, 2010, 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 #include "precompiled.hpp"

    26 #include "ci/ciTypeArray.hpp"

    27 #include "ci/ciUtilities.hpp"

    29 // ciTypeArray

    30 //

    31 // This class represents an typeArrayOop in the HotSpot virtual

    32 // machine.

    35 // ------------------------------------------------------------------

    36 // ciTypeArray::char_at

    37 //

    38 // Implementation of the char_at method.

    39 jchar ciTypeArray::char_at(int index) {

    40   VM_ENTRY_MARK;

    41   assert(index >= 0 && index < length(), "out of range");

    42   jchar c = get_typeArrayOop()->char_at(index);

    43 #ifdef ASSERT

    44   jchar d = element_value(index).as_char();

    45   assert(c == d, "");

    46 #endif //ASSERT

    47   return c;

    48 }

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

src/share/vm/ci/ciTypeArray.cpp@b2ee5dc63353

src/share/vm/ci/ciTypeArray.cpp