[Bug c++/85077] [8 Regression] V[248][SD]F abs not optimized to

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85077

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
             Status|WAITING                     |ASSIGNED
                 CC|                            |jakub at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org
   Target Milestone|---                         |8.0
            Summary|V[248][SD]F abs not         |[8 Regression] V[248][SD]F
                   |optimized to                |abs not optimized to

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
This regressed with r248124, before that change the FE would fold the two
functions to ABS_EXPR <x> but now it emits VEC_COND_EXPR < x < {0.0, 0.0, 0.0,
0.0} , -NON_LVALUE_EXPR <x> , x > and nothing recognizes that later.  I'll have
a look.