jdk8-mips64-public/hotspot: src/cpu/sparc/vm/registerMap

7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>

     1 /*

     2  * Copyright (c) 1998, 2011, 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 CPU_SPARC_VM_REGISTERMAP_SPARC_HPP

    26 #define CPU_SPARC_VM_REGISTERMAP_SPARC_HPP

    28 // machine-dependent implemention for register maps

    29   friend class frame;

    30   friend class MethodHandles;

    32  private:

    33   intptr_t* _window;         // register window save area (for L and I regs)

    34   intptr_t* _younger_window; // previous save area (for O regs, if needed)

    36   address pd_location(VMReg reg) const;

    37   void pd_clear();

    38   void pd_initialize_from(const RegisterMap* map) {

    39     _window         = map->_window;

    40     _younger_window = map->_younger_window;

    41     _location_valid[0] = 0;  // avoid the shift_individual_registers game

    42   }

    43   void pd_initialize() {

    44     _window = NULL;

    45     _younger_window = NULL;

    46     _location_valid[0] = 0;  // avoid the shift_individual_registers game

    47   }

    48   void shift_window(intptr_t* sp, intptr_t* younger_sp) {

    49     _window         = sp;

    50     _younger_window = younger_sp;

    51     // Throw away locations for %i, %o, and %l registers:

    52     // But do not throw away %g register locs.

    53     if (_location_valid[0] != 0)  shift_individual_registers();

    54   }

    55   void shift_individual_registers();

    56   // When popping out of compiled frames, we make all IRegs disappear.

    57   void make_integer_regs_unsaved() { _location_valid[0] = 0; }

    59 #endif // CPU_SPARC_VM_REGISTERMAP_SPARC_HPP

src/cpu/sparc/vm/registerMap_sparc.hpp@1d7922586cf6

src/cpu/sparc/vm/registerMap_sparc.hpp

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

src/cpu/sparc/vm/registerMap_sparc.hpp@1d7922586cf6

src/cpu/sparc/vm/registerMap_sparc.hpp