https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85095
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 43778
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43778&action=edit
gcc8-pr85095.patch
Untested fix. What happens is that combine uses simplify-rtx.c which optimizes
away the useless outer (plus with const0_rtx), and we don't have a pattern that
matches that.
