[FFmpeg-devel] [PATCH V2] Fixes compiler bug - replace vec_lvsl/vec_perm with vec_xl

[ckerchne]

How do I get someone to look at this patch?

> A bug exist with the gcc compilers for Power in versions 6.x and 7.x
> (verified with 6.3 and 7.4). It was fixed in version 8.x (verified
> with 8.3). I was using a Power 9 ppc64le machine for building and
> testing.
> This is to address ticket #7124.
> 
> It appears the compiler is generating the wrong code for little endian
> machines for the vec_lvsl/vec_perm instruction combos in some cases.
> If these instructions are replaced with vec_xl, the problem goes away
> for all versions of the compilers.
> 
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