https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88416
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 #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 45209
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45209&action=edit
gcc9-pr88416.patch
Untested fix. The problem are targets like x86 which are not AUTO_INC_DEC, but
still have some patterns that use those expressions (pushes/pops).
As for !AUTO_INC_DEC we just called copy_rtx which does pretty much the same
copying/walking as cleanup_auto_inc_dec, except that the latter will handle
those properly, I think the best fix is just to never use copy_rtx here.
