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/*
* 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( \
"stp d8, d9, [%0]\n\t" \
"stp d10, d11, [%0, #16]\n\t" \
"stp d12, d13, [%0, #32]\n\t" \
"stp d14, d15, [%0, #48]\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
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