| Commit message (Collapse) | Author | Age |
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These macros reflect the actual capabilities required here.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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Current GCC versions know how to generate these instructions
properly and avoiding inline asm gives better code. The MULH
function for ARMv5 uses the same instruction and is also not
needed any more.
The MLS64 macro remains since negating an input would normally
not be allowed as it would fail for INT_MIN. In our uses, the
inputs never have this value and thus negating is safe.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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Reasonable gcc versions get this one right on their own.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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Prior to ARMv6, the destination registers of the SMULL instruction
must be distinct from the first source register. Marking the
output early-clobber ensures it is allocated unique registers.
This restriction is dropped in ARMv6 and later, so allowing overlap
between input and output registers there might give better code.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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Originally committed as revision 19692 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 17831 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 17679 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 16819 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 16818 to svn://svn.ffmpeg.org/ffmpeg/trunk
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They are now always defined to either 0 or 1.
Originally committed as revision 16590 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 16179 to svn://svn.ffmpeg.org/ffmpeg/trunk
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