summaryrefslogtreecommitdiffstats
path: root/libavutil
diff options
context:
space:
mode:
authorJanne Grunau <janne-libav@jannau.net>2014-01-11 17:21:19 +0100
committerJanne Grunau <janne-libav@jannau.net>2014-01-15 12:31:07 +0100
commitfe96769bed828cf54c0d9dc5d55b74948a68946d (patch)
tree990b7b97c664cf9ddd36b88336cbb179752e7447 /libavutil
parentf896bca03fc63b93851c1c14c9321c20b3cd44a6 (diff)
downloadffmpeg-streaming-fe96769bed828cf54c0d9dc5d55b74948a68946d.zip
ffmpeg-streaming-fe96769bed828cf54c0d9dc5d55b74948a68946d.tar.gz
aarch64: port neon clobber test from arm
Diffstat (limited to 'libavutil')
-rw-r--r--libavutil/aarch64/neontest.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/libavutil/aarch64/neontest.h b/libavutil/aarch64/neontest.h
new file mode 100644
index 0000000..de841bb
--- /dev/null
+++ b/libavutil/aarch64/neontest.h
@@ -0,0 +1,65 @@
+/*
+ * 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
OpenPOWER on IntegriCloud