using avx2 insn on avx CPU in x265_mbtree_propagate_cost_avx

[Sami Farin]

Program received signal SIGILL, Illegal instruction.

=> 0x00007ffff57fc445 <x265_mbtree_propagate_cost_avx+85>:  vpsubd %ymm3,%ymm2,%ymm2

I have Core i5-2500K without AVX2.

x265 version: Latest tag: 1.8, Latest tag distance: 38, Changeset: 11084:fe65544b6c40

[Ma0]

The patch is waiting for commit: https://www.mail-archive.com/[e-mail]/msg08713.html

[Sami Farin]

that patch fixed the issue

[Deepthi Nandakumar]

Pushed, sorry for the delay