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arm: intreadwrite: disable inline asm for gcc 4.7 and later

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Starting with version 4.7, gcc properly supports unaligned
memory accesses on ARM.  Not using the inline asm with these
compilers results in better code.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2012-05-02 15:09:54 +01:00
parent adebad07e0
commit ababec7b95
1 changed files with 2 additions and 1 deletions
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3
libavutil/arm/intreadwrite.h
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@ -21,8 +21,9 @@
#include <stdint.h>
#include "config.h"
#include "libavutil/attributes.h"
#if HAVE_FAST_UNALIGNED && HAVE_INLINE_ASM
#if HAVE_FAST_UNALIGNED && HAVE_INLINE_ASM && !AV_GCC_VERSION_AT_LEAST(4,7)
#define AV_RN16 AV_RN16
static av_always_inline unsigned AV_RN16(const void *p)