[FFmpeg-devel] [PATCH] Disable FASTDIV for M68K

ami_stuff ami_stuff
Tue Aug 18 21:47:23 CEST 2009


I propose to disable FASTDIV by default for m68k.

68040 at 25MHz (GCC 4.4.1 -m68040 -O3 -fomit-frame-pointer):

normaldiv(-1896828497) : time=65.793s
fastdiv_c(-1896828497) : time=66.521s

68060 at 50MHz (GCC 4.4.1 -m68060 -O3 -fomit-frame-pointer):

normaldiv(-1896828497) : time=29.296s
fastdiv_c(-1896828497) : time=52.392s

Patch attached.

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