jdk8-mips64-public/hotspot: src/os_cpu/windows_x86/vm/bytes_windows

6978355: renaming for 6961697
Summary: This is the renaming part of 6961697 to keep the actual changes small for review.
Reviewed-by: kvn, never

     1 /*

     2  * Copyright (c) 1998, 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 #pragma warning(disable: 4035) // Disable warning 4035: no return value

    27 // Efficient swapping of data bytes from Java byte

    28 // ordering to native byte ordering and vice versa.

    29 inline u2 Bytes::swap_u2(u2 x) {

    30 #ifdef AMD64

    31   address p = (address) &x;

    32   return  ( (u2(p[0]) << 8 ) | ( u2(p[1])) );

    33 #else

    34   __asm {

    35     mov ax, x

    36     xchg al, ah

    37   }

    38   // no return statement needed, result is already in ax

    39   // compiler warning C4035 disabled via warning pragma

    40 #endif // AMD64

    41 }

    43 inline u4 Bytes::swap_u4(u4 x) {

    44 #ifdef AMD64

    45   address p = (address) &x;

    46   return ( (u4(p[0]) << 24) | (u4(p[1]) << 16) | (u4(p[2]) << 8) | u4(p[3])) ;

    47 #else

    48   __asm {

    49     mov eax, x

    50     bswap eax

    51   }

    52   // no return statement needed, result is already in eax

    53   // compiler warning C4035 disabled via warning pragma

    54 #endif // AMD64

    55 }

    57 #ifdef AMD64

    58 inline u8 Bytes::swap_u8(u8 x) {

    59   address p = (address) &x;

    60   return ( (u8(p[0]) << 56) | (u8(p[1]) << 48) | (u8(p[2]) << 40) | (u8(p[3]) << 32) |

    61            (u8(p[4]) << 24) | (u8(p[5]) << 16) | (u8(p[6]) << 8)  | u8(p[7])) ;

    62 }

    64 #else

    65 // Helper function for swap_u8

    66 inline u8 Bytes::swap_u8_base(u4 x, u4 y) {

    67   __asm {

    68     mov eax, y

    69     mov edx, x

    70     bswap eax

    71     bswap edx

    72   }

    73   // no return statement needed, result is already in edx:eax

    74   // compiler warning C4035 disabled via warning pragma

    75 }

    77 inline u8 Bytes::swap_u8(u8 x) {

    78   return swap_u8_base(*(u4*)&x, *(((u4*)&x)+1));

    79 }

    80 #endif // AMD64

    82 #pragma warning(default: 4035) // Enable warning 4035: no return value

src/os_cpu/windows_x86/vm/bytes_windows_x86.inline.hpp@3e8fbc61cee8