mirror of
https://github.com/xenia-project/FFmpeg.git
synced 2024-11-24 12:09:55 +00:00
44a0a98f92
This is pretty much based on the same test for XMM registers. Signed-off-by: Martin Storsjö <martin@martin.st>
63 lines
2.6 KiB
C
63 lines
2.6 KiB
C
/*
|
|
* check NEON registers for clobbering
|
|
* Copyright (c) 2008 Ramiro Polla <ramiro.polla@gmail.com>
|
|
* Copyright (c) 2013 Martin Storsjo
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <inttypes.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <stdarg.h>
|
|
#include <string.h>
|
|
|
|
#include "libavutil/bswap.h"
|
|
|
|
#define storeneonregs(mem) \
|
|
__asm__ volatile( \
|
|
"vstm %0, {d8-d15}\n\t" \
|
|
:: "r"(mem) : "memory")
|
|
|
|
#define testneonclobbers(func, ctx, ...) \
|
|
uint64_t neon[2][8]; \
|
|
int ret; \
|
|
storeneonregs(neon[0]); \
|
|
ret = __real_ ## func(ctx, __VA_ARGS__); \
|
|
storeneonregs(neon[1]); \
|
|
if (memcmp(neon[0], neon[1], sizeof(neon[0]))) { \
|
|
int i; \
|
|
av_log(ctx, AV_LOG_ERROR, \
|
|
"NEON REGS CLOBBERED IN %s!\n", #func); \
|
|
for (i = 0; i < 8; i ++) \
|
|
if (neon[0][i] != neon[1][i]) { \
|
|
av_log(ctx, AV_LOG_ERROR, \
|
|
"d%-2d = %016"PRIx64"\n", \
|
|
8 + i, av_bswap64(neon[0][i])); \
|
|
av_log(ctx, AV_LOG_ERROR, \
|
|
" -> %016"PRIx64"\n", \
|
|
av_bswap64(neon[1][i])); \
|
|
} \
|
|
abort(); \
|
|
} \
|
|
return ret
|
|
|
|
#define wrap(func) \
|
|
int __real_ ## func; \
|
|
int __wrap_ ## func; \
|
|
int __wrap_ ## func
|