| /* |
| * check NEON registers for clobbering |
| * Copyright (c) 2008 Ramiro Polla <ramiro.polla@gmail.com> |
| * Copyright (c) 2013 Martin Storsjo |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg 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. |
| * |
| * FFmpeg 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 FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef AVUTIL_ARM_NEONTEST_H |
| #define AVUTIL_ARM_NEONTEST_H |
| |
| #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 |
| |
| #endif /* AVUTIL_ARM_NEONTEST_H */ |
