https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85433
Jan Hubicka <hubicka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at redhat dot com
Assignee|hubicka at gcc dot gnu.org |unassigned at gcc dot
gnu.org
--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
I looked into this more and problem is collect2 which creates the file. This is
done to handle rpo files. For those compilation is done multiple times until
all templates are needed. In this case error messages from earlier runs are
discarded and that is why we can't output the directly to terminal.
Obviously this is silly to do with LTO, but at the time we create temporary we
do not know if we will LTO or not because linker is called later.
Jason, I wonder are RPO files still relevant and whether there is something to
do about this? I am unassigning myself since I do not know what to do. However
in my tree I simply have hack that disables the RPO path and this gets me nice
colorful warnings (and they come when they are found, not several minutes
later)
