On 10/21/2014 11:30 PM, Jakub Jelinek wrote:
At least for OpenMP, the best would be if the #pragma omp target regions and/or #pragma omp declare target functions contain anything a particular offloading accelerator can't handle, instead of failing the whole compilation perhaps just emit some at least by default non-fatal warning and not emit anything for the particular offloading target, which would mean either host fallback, or, if some other offloading target succeeded, just that target.
I guess a test could be added to mkoffload if gcc were to return a different value for a sorry vs. any other compilation failure. The tool could then choose not to produce offloading support for that target.
Bernd
