https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95236
Bug ID: 95236 Summary: OMP 'GOMP_MAP_STRUCT': a structure is more than the sum of all its fields? Product: gcc Version: 10.0 Status: UNCONFIRMED Keywords: openacc, openmp Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: tschwinge at gcc dot gnu.org CC: jakub at gcc dot gnu.org, jules at gcc dot gnu.org Target Milestone: --- Created attachment 48571 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48571&action=edit 'itu_.c' ..., and the answer (technically) may easily be "yes", considering ABI-mandated padding, for example. But: is that user friendly? Consider the test case I'm attaching, where 'struct s' consists of fields 'a', 'b', which both get mapped -- yet, 's' itself isn't considered to be. At the user level, should a structure equal the sum of all its fields, or "do we have to be complicated"? I have not fully thought that through, just noticed this when looking into something else. I also have not verified OpenMP behavior.