jdk8-mips64-public/hotspot: src/cpu/x86/vm/copy

7074017: Introduce MemBarAcquireLock/MemBarReleaseLock nodes for monitor enter/exit code paths
Summary: replace MemBarAcquire/MemBarRelease nodes on the monitor enter/exit code paths with new MemBarAcquireLock/MemBarReleaseLock nodes
Reviewed-by: kvn, twisti

     1 /*

     2  * Copyright (c) 2003, 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 #ifndef CPU_X86_VM_COPY_X86_HPP

    26 #define CPU_X86_VM_COPY_X86_HPP

    28 // Inline functions for memory copy and fill.

    30 // Contains inline asm implementations

    31 #ifdef TARGET_OS_ARCH_linux_x86

    32 # include "copy_linux_x86.inline.hpp"

    33 #endif

    34 #ifdef TARGET_OS_ARCH_solaris_x86

    35 # include "copy_solaris_x86.inline.hpp"

    36 #endif

    37 #ifdef TARGET_OS_ARCH_windows_x86

    38 # include "copy_windows_x86.inline.hpp"

    39 #endif

    42 static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) {

    43 #ifdef AMD64

    44   julong* to = (julong*) tohw;

    45   julong  v  = ((julong) value << 32) | value;

    46   while (count-- > 0) {

    47     *to++ = v;

    48   }

    49 #else

    50   juint* to = (juint*)tohw;

    51   count *= HeapWordSize / BytesPerInt;

    52   while (count-- > 0) {

    53     *to++ = value;

    54   }

    55 #endif // AMD64

    56 }

    58 static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) {

    59   pd_fill_to_words(tohw, count, value);

    60 }

    62 static void pd_fill_to_bytes(void* to, size_t count, jubyte value) {

    63   (void)memset(to, value, count);

    64 }

    66 static void pd_zero_to_words(HeapWord* tohw, size_t count) {

    67   pd_fill_to_words(tohw, count, 0);

    68 }

    70 static void pd_zero_to_bytes(void* to, size_t count) {

    71   (void)memset(to, 0, count);

    72 }

    74 #endif // CPU_X86_VM_COPY_X86_HPP

src/cpu/x86/vm/copy_x86.hpp@f1c12354c3f7

src/cpu/x86/vm/copy_x86.hpp

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

src/cpu/x86/vm/copy_x86.hpp@f1c12354c3f7

src/cpu/x86/vm/copy_x86.hpp