[Bug target/96246] [AVX512] unefficient code generatation for vpblendm*

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96246

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2020-07-20
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
With -mavx2 it works:

        vpcmpgtd        %ymm1, %ymm0, %ymm0
        vpblendvb       %ymm0, %ymm2, %ymm3, %ymm0

not sure how _load<mode> comes into play - we expand from


  <bb 2> [local count: 1073741824]:
  _6 = .VCOND (a_2(D), b_3(D), c_4(D), d_5(D), 109);
  return _6;