[Bug tree-optimization/99398] Miss to optimize vector permutation fed by CTOR and CTOR/CST

[linkw at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99398

Kewen Lin <linkw at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2021-03-05

--- Comment #1 from Kewen Lin <linkw at gcc dot gnu.org> ---
I have a patch by teaching simplify_permutation@tree-ssa-forwprop.c to bypass
VIEW_CONVERT_EXPR.