https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85129
Tom de Vries <vries at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |documentation
CC| |tschwinge at gcc dot gnu.org
--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
> When deferring
> to runtime, the environment variable @var{GOMP_OPENACC_DIM} can be set.
> It has the same format as the option value, except that '-' is not
> permitted.
Thinking about it some more, this doesn't make sense to me.
If we don't specify GOMP_OPENACC_DIM, then libgomp decides on the dimensions
that haven't been decided on yet.
So if '-' means: let libgomp decide, than surely not specifying
GOMP_OPENACC_DIM is the same as specifying GOMP_OPENACC_DIM="-:-:-"
I think it's better to keep the syntax equal between fopenacc-dim and
GOMP_OPENACC_DIM.
