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The code has undefined behavior and makes no difference when optimizations
are enabled.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'c19a49e565bd06ea47947d50779ba236df9d4943':
ppc: Support little endian intreadwrite
Conflicts:
libavutil/ppc/intreadwrite.h
See: d37c620c84e28400ad071d1c75cc81445b4acb29
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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Untested due to lack of hardware
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Originally committed as revision 21278 to svn://svn.ffmpeg.org/ffmpeg/trunk
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The target register of first word loaded must be marked early-clobber.
Originally committed as revision 19536 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 18606 to svn://svn.ffmpeg.org/ffmpeg/trunk
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PPC is normally big endian but has special little endian load/store
instructions. Using these avoids a separate byteswap. This makes the
vorbis decoder about 5% faster. Not much else uses little-endian
read/write extensively.
GCC generates horrible PPC code for the default AV_[RW]B64 (which uses
a packed struct), so we override it with a plain pointer cast.
Originally committed as revision 18602 to svn://svn.ffmpeg.org/ffmpeg/trunk
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