jdk8-mips64-public/hotspot: src/cpu/zero/vm/entryFrame

6926048: Improve Zero performance
Summary: Make Zero figure out result types in a similar way to C++ interpreter implementation.
Reviewed-by: kvn
Contributed-by: gbenson@redhat.com

     1 /*

     2  * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.

     3  * Copyright 2008 Red Hat, Inc.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

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

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

    22  * have any questions.

    23  *

    24  */

    26 // |  ...               |

    27 // +--------------------+  ------------------

    28 // | parameter n-1      |       low addresses

    29 // |  ...               |

    30 // | parameter 0        |

    31 // | call_wrapper       |

    32 // | frame_type         |

    33 // | next_frame         |      high addresses

    34 // +--------------------+  ------------------

    35 // |  ...               |

    37 class EntryFrame : public ZeroFrame {

    38  private:

    39   EntryFrame() : ZeroFrame() {

    40     ShouldNotCallThis();

    41   }

    43  protected:

    44   enum Layout {

    45     call_wrapper_off = jf_header_words,

    46     header_words

    47   };

    49  public:

    50   static EntryFrame *build(ZeroStack*       stack,

    51                            const intptr_t*  parameters,

    52                            int              parameter_words,

    53                            JavaCallWrapper* call_wrapper);

    54  public:

    55   JavaCallWrapper *call_wrapper() const {

    56     return (JavaCallWrapper *) value_of_word(call_wrapper_off);

    57   }

    59  public:

    60   void identify_word(int   frame_index,

    61                      int   offset,

    62                      char* fieldbuf,

    63                      char* valuebuf,

    64                      int   buflen) const;

    65 };

src/cpu/zero/vm/entryFrame_zero.hpp@c09ee209b65c

src/cpu/zero/vm/entryFrame_zero.hpp

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

src/cpu/zero/vm/entryFrame_zero.hpp@c09ee209b65c

src/cpu/zero/vm/entryFrame_zero.hpp