prefetch_solaris_sparc.inline.hpp revision 1472:c18cbe5936b8 
1/*
2 * Copyright (c) 2003, 2007, 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
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23 */
24
25#if defined(COMPILER2) || defined(_LP64)
26
27// For Sun Studio inplementation is in solaris_sparc.il
28// For gcc inplementation is just below
29extern "C" void _Prefetch_read (void *loc, intx interval);
30extern "C" void _Prefetch_write(void *loc, intx interval);
31
32inline void Prefetch::read(void *loc, intx interval) {
33  _Prefetch_read(loc, interval);
34}
35
36inline void Prefetch::write(void *loc, intx interval) {
37  _Prefetch_write(loc, interval);
38}
39
40#ifdef _GNU_SOURCE
41extern "C" {
42  inline void _Prefetch_read (void *loc, intx interval) {
43    __asm__ volatile
44      ("prefetch [%0+%1], 0" : : "r" (loc), "r" (interval) : "memory" );
45  }
46  inline void _Prefetch_write(void *loc, intx interval) {
47    __asm__ volatile
48      ("prefetch [%0+%1], 2" : : "r" (loc), "r" (interval) : "memory" );
49  }
50}
51#endif // _GNU_SOURCE
52
53#else  // defined(COMPILER2) || defined(_LP64)
54
55inline void Prefetch::read (void *loc, intx interval) {}
56inline void Prefetch::write(void *loc, intx interval) {}
57
58#endif // defined(COMPILER2) || defined(_LP64)
59