Ping^2 Re: Pass -foffload targets from driver to libgomp at link time

Bernd Schmidt bschmidt@redhat.com
Thu Sep 10 14:03:00 GMT 2015


On 09/10/2015 03:41 PM, Joseph Myers wrote:
> Ping^2.  This patch 
> <https://gcc.gnu.org/ml/gcc-patches/2015-08/msg01748.html> is still 
> pending review.

No fundamental objections, but I have some questions. Cuold you describe
what the handling of flags/lang_mask accomplishes in this patch? Would
option handling be simpler if the creation/compilation of the extra file
happened in lto_wrapper (where we already do similar things through
mkoffload)?

I initially thought the information you're giving to
GOMP_set_offload_targets is already available implicitly, from the calls
to GOMP_offload_register. But digging through the archives it sounds
like the problem is that if there's no offloadable code, no offload
image will be generated. Is that correct?



Bernd



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