[Bug target/94343] [10 Regression] invalid AVX512VL vpternlogd instruction emitted for -march=knl

[jbeulich at suse dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94343

--- Comment #12 from jbeulich at suse dot com ---
(In reply to Jakub Jelinek from comment #8)
> Created attachment 48128 [details]
> gcc10-pr94343.patch
> 
> Updated patch.  A variant to that would be 4 separate patterns I guess, not
> sure if that would be shorter.

May I suggest that the testcases also check for the 0x55 immediate? The
potential of VPTERNLOG allows for much wider use (with different immediates) in
principle, so the correct choice of immediate would imo better be validated
here as well.