Mercurial > hg > truffle
annotate src/cpu/x86/vm/copy_x86.hpp @ 18682:0a109f5d5873
Add unwrap method to arithmetic operations.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Mon, 15 Dec 2014 19:15:39 +0100 |
parents | f08d439fab8c |
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rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef CPU_X86_VM_COPY_X86_HPP |
26 #define CPU_X86_VM_COPY_X86_HPP | |
27 | |
0 | 28 // Inline functions for memory copy and fill. |
29 | |
30 // Contains inline asm implementations | |
1972 | 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 | |
3960 | 40 #ifdef TARGET_OS_ARCH_bsd_x86 |
41 # include "copy_bsd_x86.inline.hpp" | |
42 #endif | |
1972 | 43 |
0 | 44 |
45 static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) { | |
46 #ifdef AMD64 | |
47 julong* to = (julong*) tohw; | |
48 julong v = ((julong) value << 32) | value; | |
49 while (count-- > 0) { | |
50 *to++ = v; | |
51 } | |
52 #else | |
53 juint* to = (juint*)tohw; | |
54 count *= HeapWordSize / BytesPerInt; | |
55 while (count-- > 0) { | |
56 *to++ = value; | |
57 } | |
58 #endif // AMD64 | |
59 } | |
60 | |
61 static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) { | |
62 pd_fill_to_words(tohw, count, value); | |
63 } | |
64 | |
65 static void pd_fill_to_bytes(void* to, size_t count, jubyte value) { | |
66 (void)memset(to, value, count); | |
67 } | |
68 | |
69 static void pd_zero_to_words(HeapWord* tohw, size_t count) { | |
70 pd_fill_to_words(tohw, count, 0); | |
71 } | |
72 | |
73 static void pd_zero_to_bytes(void* to, size_t count) { | |
74 (void)memset(to, 0, count); | |
75 } | |
1972 | 76 |
77 #endif // CPU_X86_VM_COPY_X86_HPP |