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ARM: change return type of AV_RN16() to unsigned

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This prevents gcc inserting useless UXTH instructions, at least
in some cases.

Originally committed as revision 25212 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2010-09-26 21:01:20 +00:00
parent 33ce384688
commit 3288177150
1 changed files with 2 additions and 2 deletions
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4
libavutil/arm/intreadwrite.h
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@ -25,9 +25,9 @@
#if HAVE_FAST_UNALIGNED && HAVE_INLINE_ASM #if HAVE_FAST_UNALIGNED && HAVE_INLINE_ASM
#define AV_RN16 AV_RN16 #define AV_RN16 AV_RN16
static av_always_inline uint16_t AV_RN16(const void *p) static av_always_inline unsigned AV_RN16(const void *p)
{ {
uint16_t v; unsigned v;
__asm__ ("ldrh %0, %1" : "=r"(v) : "m"(*(const uint16_t *)p)); __asm__ ("ldrh %0, %1" : "=r"(v) : "m"(*(const uint16_t *)p));
return v; return v;
} }