[Bug ipa/64963] [5 Regression] IPA Cloning/Splitting does not copy function section attributes resulting in kernel miscompilation

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64963

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |5.0
            Summary|IPA Cloning/Splitting does  |[5 Regression] IPA
                   |not copy function section   |Cloning/Splitting does not
                   |attributes resulting in     |copy function section
                   |kernel miscompilation       |attributes resulting in
                   |                            |kernel miscompilation

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Ah, though it seems we've actually been using the user section for the clones
in the past, it is just Honza's r211363/r211365 changes (or so, r211350 works,
r211400 doesn't), that broke this.  So in that case it is a regression and
supposedly cloning should ensure the section name is copied (which has been
done automatically in the past because it was part of the FUNCTION_DECL that
was copied and modified, but after moving that out into cgraph that doesn't
happen anymore).