http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #17 from bfriesen at simple dot dallas.tx.us 2012-07-21 01:04:55 UTC --- I discovered that GCC's __attribute__((__optimize__())) and optimization pragmas do not work for OpenMP code because OpenMP uses a different function name for the actual working code. This makes it much more painful to work around this bug.