https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81688
--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> --- Already mentioned here ( https://gcc.gnu.org/ml/gcc-patches/2016-11/msg00972.html ): ... With OpenMP/PTX offloading there are 5 additional failures in check-target-libgomp: <SNIP> Two with 'target nowait' (not implemented) FAIL: libgomp.c/target-33.c execution test FAIL: libgomp.c/target-34.c execution test ...