On 23/06/2020 20:36, Thomas Schwinge wrote:
Eventually (not now...), instead of special-casing more and more options (I somehow doubt that '-fpic', '-fPIC' are the only ones?), shouldn't we solve this in some more generic way, like re-invoking the host compiler exactly as invoked before (if that makes sense?), or -- freaky ;-) -- instead of doing the "LTO wrapper thing", pause the host compiler, generate offload code, inject that code into the host compiler, and directly proceed there? (That is, do offload code generation as part of the host compilation, instead of at link time.) (Just thinking aloud, and without and "depth" -- and any such work will be a bigger, separate task, obviously.)
I thought the same, but it's better to fix one problem now than probably not getting around to fixing two problems later. In any case, we definitely want a white list, and explicit coding is easy to read.
Andrew
