2 * check NEON registers for clobbering
3 * Copyright (c) 2008 Ramiro Polla <ramiro.polla@gmail.com>
4 * Copyright (c) 2013 Martin Storsjo
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #ifndef AVUTIL_AARCH64_NEONTEST_H
24 #define AVUTIL_AARCH64_NEONTEST_H
32 #include "libavutil/bswap.h"
34 #define storeneonregs(mem) \
36 "stp d8, d9, [%0]\n\t" \
37 "stp d10, d11, [%0, #16]\n\t" \
38 "stp d12, d13, [%0, #32]\n\t" \
39 "stp d14, d15, [%0, #48]\n\t" \
40 :: "r"(mem) : "memory")
42 #define testneonclobbers(func, ctx, ...) \
43 uint64_t neon[2][8]; \
45 storeneonregs(neon[0]); \
46 ret = __real_ ## func(ctx, __VA_ARGS__); \
47 storeneonregs(neon[1]); \
48 if (memcmp(neon[0], neon[1], sizeof(neon[0]))) { \
50 av_log(ctx, AV_LOG_ERROR, \
51 "NEON REGS CLOBBERED IN %s!\n", #func); \
52 for (i = 0; i < 8; i ++) \
53 if (neon[0][i] != neon[1][i]) { \
54 av_log(ctx, AV_LOG_ERROR, \
55 "d%-2d = %016"PRIx64"\n", \
56 8 + i, av_bswap64(neon[0][i])); \
57 av_log(ctx, AV_LOG_ERROR, \
58 " -> %016"PRIx64"\n", \
59 av_bswap64(neon[1][i])); \
66 int __real_ ## func; \
67 int __wrap_ ## func; \
70 #endif /* AVUTIL_AARCH64_NEONTEST_H */