avutil/tests: Add cpu_init.c to check whether the one-time initialization in av_get_cpu_flags() has data races.

Co-author: Dmitry Vyukov of Google

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
pull/241/head
Wan-Teh Chang 8 years ago committed by Michael Niedermayer
parent 29fb49194b
commit d84a21207e
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