https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78053
--- Comment #3 from vehre at gcc dot gnu.org --- (In reply to Richard Biener from comment #2) > The ICE happens because the FE introduces a type that ends up not being > gimplified via gimplify-type-sizes: > > character(kind=1)[0:][1:.__tmp_CHARACTER_0_1] * D.3481; > > The reason is a missing DECL_EXPR for the variable-size type. Thanks for the crucial information. I might have been searching this for days.