On Mon, Nov 09, 2015 at 05:58:56PM +0100, Martin Jambor wrote:
> > But I don't see any way to disable it on the command line? (no switch?)
>
> No, the switch is -foffload, which has missing documentation (PR
> 67300) and is only described at https://gcc.gnu.org/wiki/Offloading
> Nevertheless, the option allows the user to specify compiler option
> -foffload=disable and no offloading should happen, not even HSA. The
> user can also enumerate just the offload targets they want (and pass
> them special command line stuff).
>
> It seems I have misplaced a hunk in the patch series. Nevertheless,
> in the first patch (with configuration stuff), there is a change to
> opts.c which scans the -foffload= contents and sets the flag variable
> if hsa is not present.
>
> Whenever the compiler has to decide whether HSA is enabled for the
> given compilation or not, it has to look at this variable (if
> configured for HSA).
Buut what is the difference between
-foffload=disable
or
-foffload={list not including hsa}
and the new param? If you don't gridify, you don't emit any kernels...
Jakub
