https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88140
--- Comment #12 from Jan Hubicka <hubicka at gcc dot gnu.org> --- I have committed the workaround as: r267398 | hubicka | 2018-12-24 12:21:25 +0100 (Mon, 24 Dec 2018) | 6 lines * tree.c (fld_simplified_type): Temporarily disable array simplification. * gcc.c-torture/pr88140.c: New testcase. forgot to cut&past the PR specifier into the commit log. Shall we retarget this to GCC 10 now?