On 18.05.21 15:57, Richard Biener wrote:
Doh. So -foffload=default -foffloat=nvptx-none=-latomic maybe?
We really need a good documentation for -foffload= and something like -foffload=default would be good as well – I think we currently only have 'disabled' and an explicit list. (Documentation: cf. https://gcc.gnu.org/PR67300 )
That said, it would be nice if -latomic was_added_ by the targets specs when possibly needed, maybe with -Wl,--as-needed instead of the user being required to add it himself.
Last patch was https://gcc.gnu.org/pipermail/gcc-patches/2020-October/556297.html (also linked to from C99's https://gcc.gnu.org/PR81358 ) – see review comments in the reply email. At the end, I did run out of time for this side project and did not follow up. (The changing the code/configure part should be quick; the testsuite part is not as straight forward but might or might not be complicated/lengthy.) Tobias ----------------- Mentor Graphics (Deutschland) GmbH, Arnulfstrasse 201, 80634 München Registergericht München HRB 106955, Geschäftsführer: Thomas Heurung, Frank Thürauf
