https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107028
Tobias Burnus <burnus at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jules at gcc dot gnu.org --- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> --- The problem is that for 8 | #pragma acc data copyin(a, a.data) the function install_var_field is called twice, both times with: install_var_field (var=0x7ffff6fd8d80, by_ref=true, mask=3, ctx=0x30abd50) where var is var_decl 'a'. This then runs into the assert: 797 gcc_assert ((mask & 1) == 0 798 || !splay_tree_lookup (ctx->field_map, key)); * * * BTW, in GCC 12 (and OG12), the omplower dump is: #pragma omp target oacc_data map(to:a [len: 4]) map(to:a.data [len: 4]) * * * Unless I messed up with bisecting, the culprit is r13-2665-g23baa717c991d77f206a9358ce2c04960ccf9eea OpenMP/OpenACC struct sibling list gimplification extension and rework