https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104323
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
Ever confirmed|0 |1
Target Milestone|--- |12.0
Last reconfirmed| |2022-02-01
Status|UNCONFIRMED |ASSIGNED
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
rs6000-gen-builtins.cc contains comments like:
/* #### Cannot mark this as a GC root because only pointer types can
be marked as GTY((user)) and be GC roots. All trees in here are
kept alive by other globals, so not a big deal. Alternatively,
we could change the enum fields to ints and cast them in and out
to avoid requiring a GTY((user)) designation, but that seems
unnecessarily gross. */
but while that seems to work fine for GC (e.g. rs6000_builtin_info[?].fntype
is set to some FUNCTION_TYPE that is also stored in some GC root forever, so GC
shouldn't free that FUNCTION_TYPE), it doesn't and can't work for PCH, which
really needs to be able to adjust all the pointers.
