https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69046
--- Comment #1 from Jack Howarth <howarth.at.gcc at gmail dot com> --- Created attachment 37129 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37129&action=edit log of 'make ctest' using -fopenmp -O3 on x86_64-apple-darwin15