win64: add a XMM clobber test configure option.
[libav.git] / libavutil / x86 / w64xmmtest.h
1 /*
2 * check XMM registers for clobbers on Win64
3 * Copyright (c) 2008 Ramiro Polla <ramiro.polla@gmail.com>
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include <stdint.h>
23 #include <stdlib.h>
24 #include <stdarg.h>
25
26 #include "libavutil/bswap.h"
27
28 #define storexmmregs(mem) \
29 __asm__ volatile( \
30 "movups %%xmm6 , 0x00(%0)\n\t" \
31 "movups %%xmm7 , 0x10(%0)\n\t" \
32 "movups %%xmm8 , 0x20(%0)\n\t" \
33 "movups %%xmm9 , 0x30(%0)\n\t" \
34 "movups %%xmm10, 0x40(%0)\n\t" \
35 "movups %%xmm11, 0x50(%0)\n\t" \
36 "movups %%xmm12, 0x60(%0)\n\t" \
37 "movups %%xmm13, 0x70(%0)\n\t" \
38 "movups %%xmm14, 0x80(%0)\n\t" \
39 "movups %%xmm15, 0x90(%0)\n\t" \
40 :: "r"(mem) : "memory")
41
42 #define testxmmclobbers(func, ctx, ...) \
43 uint64_t xmm[2][10][2]; \
44 int ret; \
45 storexmmregs(xmm[0]); \
46 ret = __real_ ## func(ctx, __VA_ARGS__); \
47 storexmmregs(xmm[1]); \
48 if (memcmp(xmm[0], xmm[1], sizeof(xmm[0]))) { \
49 int i; \
50 av_log(ctx, AV_LOG_ERROR, \
51 "XMM REGS CLOBBERED IN %s!\n", #func); \
52 for (i = 0; i < 10; i ++) \
53 if (xmm[0][i][0] != xmm[1][i][0] || \
54 xmm[0][i][1] != xmm[1][i][1]) { \
55 av_log(ctx, AV_LOG_ERROR, \
56 "xmm%-2d = %016"PRIx64"%016"PRIx64"\n", \
57 6 + i, av_bswap64(xmm[0][i][0]), \
58 av_bswap64(xmm[0][i][1])); \
59 av_log(ctx, AV_LOG_ERROR, \
60 " -> %016"PRIx64"%016"PRIx64"\n", \
61 av_bswap64(xmm[1][i][0]), \
62 av_bswap64(xmm[1][i][1])); \
63 } \
64 abort(); \
65 } \
66 return ret
67
68 #define wrap(func) \
69 int __real_ ## func; \
70 int __wrap_ ## func; \
71 int __wrap_ ## func