https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92840
Bug ID: 92840
Summary: [OpenACC] Disallow 'acc_unmap_data' for everything
other than 'acc_map_data'
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: openacc, patch
Severity: normal
Priority: P3
Component: libgomp
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: ---
OpenACC 2.6, 3.2.27. "acc_unmap_data" states that "It is undefined behavior to
call 'acc_unmap_data' with a host address unless that host address was mapped
to device memory using 'acc_map_data'. We're currently not checking that, but
it's easy enough to do (..., and uncovers some weirdness...).
WIP patch exists.
