1cabdff1aSopenharmony_ci/* 2cabdff1aSopenharmony_ci * check NEON registers for clobbering 3cabdff1aSopenharmony_ci * Copyright (c) 2008 Ramiro Polla <ramiro.polla@gmail.com> 4cabdff1aSopenharmony_ci * Copyright (c) 2013 Martin Storsjo 5cabdff1aSopenharmony_ci * 6cabdff1aSopenharmony_ci * This file is part of FFmpeg. 7cabdff1aSopenharmony_ci * 8cabdff1aSopenharmony_ci * FFmpeg is free software; you can redistribute it and/or 9cabdff1aSopenharmony_ci * modify it under the terms of the GNU Lesser General Public 10cabdff1aSopenharmony_ci * License as published by the Free Software Foundation; either 11cabdff1aSopenharmony_ci * version 2.1 of the License, or (at your option) any later version. 12cabdff1aSopenharmony_ci * 13cabdff1aSopenharmony_ci * FFmpeg is distributed in the hope that it will be useful, 14cabdff1aSopenharmony_ci * but WITHOUT ANY WARRANTY; without even the implied warranty of 15cabdff1aSopenharmony_ci * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16cabdff1aSopenharmony_ci * Lesser General Public License for more details. 17cabdff1aSopenharmony_ci * 18cabdff1aSopenharmony_ci * You should have received a copy of the GNU Lesser General Public 19cabdff1aSopenharmony_ci * License along with FFmpeg; if not, write to the Free Software 20cabdff1aSopenharmony_ci * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 21cabdff1aSopenharmony_ci */ 22cabdff1aSopenharmony_ci 23cabdff1aSopenharmony_ci#ifndef AVUTIL_ARM_NEONTEST_H 24cabdff1aSopenharmony_ci#define AVUTIL_ARM_NEONTEST_H 25cabdff1aSopenharmony_ci 26cabdff1aSopenharmony_ci#include <inttypes.h> 27cabdff1aSopenharmony_ci#include <stdint.h> 28cabdff1aSopenharmony_ci#include <stdlib.h> 29cabdff1aSopenharmony_ci#include <stdarg.h> 30cabdff1aSopenharmony_ci#include <string.h> 31cabdff1aSopenharmony_ci 32cabdff1aSopenharmony_ci#include "libavutil/bswap.h" 33cabdff1aSopenharmony_ci 34cabdff1aSopenharmony_ci#define storeneonregs(mem) \ 35cabdff1aSopenharmony_ci __asm__ volatile( \ 36cabdff1aSopenharmony_ci "vstm %0, {d8-d15}\n\t" \ 37cabdff1aSopenharmony_ci :: "r"(mem) : "memory") 38cabdff1aSopenharmony_ci 39cabdff1aSopenharmony_ci#define testneonclobbers(func, ctx, ...) \ 40cabdff1aSopenharmony_ci uint64_t neon[2][8]; \ 41cabdff1aSopenharmony_ci int ret; \ 42cabdff1aSopenharmony_ci storeneonregs(neon[0]); \ 43cabdff1aSopenharmony_ci ret = __real_ ## func(ctx, __VA_ARGS__); \ 44cabdff1aSopenharmony_ci storeneonregs(neon[1]); \ 45cabdff1aSopenharmony_ci if (memcmp(neon[0], neon[1], sizeof(neon[0]))) { \ 46cabdff1aSopenharmony_ci int i; \ 47cabdff1aSopenharmony_ci av_log(ctx, AV_LOG_ERROR, \ 48cabdff1aSopenharmony_ci "NEON REGS CLOBBERED IN %s!\n", #func); \ 49cabdff1aSopenharmony_ci for (i = 0; i < 8; i ++) \ 50cabdff1aSopenharmony_ci if (neon[0][i] != neon[1][i]) { \ 51cabdff1aSopenharmony_ci av_log(ctx, AV_LOG_ERROR, \ 52cabdff1aSopenharmony_ci "d%-2d = %016"PRIx64"\n", \ 53cabdff1aSopenharmony_ci 8 + i, av_bswap64(neon[0][i])); \ 54cabdff1aSopenharmony_ci av_log(ctx, AV_LOG_ERROR, \ 55cabdff1aSopenharmony_ci " -> %016"PRIx64"\n", \ 56cabdff1aSopenharmony_ci av_bswap64(neon[1][i])); \ 57cabdff1aSopenharmony_ci } \ 58cabdff1aSopenharmony_ci abort(); \ 59cabdff1aSopenharmony_ci } \ 60cabdff1aSopenharmony_ci return ret 61cabdff1aSopenharmony_ci 62cabdff1aSopenharmony_ci#define wrap(func) \ 63cabdff1aSopenharmony_ciint __real_ ## func; \ 64cabdff1aSopenharmony_ciint __wrap_ ## func; \ 65cabdff1aSopenharmony_ciint __wrap_ ## func 66cabdff1aSopenharmony_ci 67cabdff1aSopenharmony_ci#endif /* AVUTIL_ARM_NEONTEST_H */ 68