https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85759
Stefan Talpalaru <stefantalpalaru at yahoo dot com> changed:
What |Removed |Added
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CC| |stefantalpalaru at yahoo dot
com
--- Comment #16 from Stefan Talpalaru <stefantalpalaru at yahoo dot com> ---
I found a new case that is unrelated to the use of -fprofile-generate=directory
or the existence of multiple *.gcda files with the same name in different
directories.
The problem appears in Python-2.7.15 when building the extensions with PGO,
using gcc-7.3.0 or gcc-8.1.0 on Gentoo ~amd64:
[...]/cpython-2.7.15/Modules/timemodule.c:1162:1: internal compiler error: in
output_profile_summary, at lto-cgraph.c:705
}
^
Detailed instructions for replicating the ICE:
https://gist.github.com/stefantalpalaru/a1f31b9dff6c2227999e32781741dd01
Serializing the profiling task does not help, nor does adding
-fprofile-update=atomic to the profile generation phase.
