https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119833
Thomas Schwinge <tschwinge at gcc dot gnu.org> changed:
What |Removed |Added
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See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=97106,
| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=105018
--- Comment #1 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
As a corollary to commit r15-9523-gca9cffe737d20953082333dacebb65d4261e0d0c
"For nvptx offloading, make sure to emit C++ constructor, destructor aliases
[PR97106]", in combination with my finding in bug 117010, comment #9, things
would actually break for nvptx offloading compilation if we didn't transform
weak into strong aliases during offloading compilation (as enabled by
'pass_ipa_whole_program_visibility' via 'in_lto_p' set to 'true').
One potential solution would then be:
(In reply to Jakub Jelinek from bug 117010, comment #5)
> [...]
> So, if some offloading target like NVPTX lacks alias support or lacks weak
> alias support, I'm afraid we need to tweak it; add thunks like IPA ICF uses
> etc.
..., or implementing proper handling for symbol aliases as well as weak symbols
in nvptx 'ld', as discussed in PR105018 "[nvptx] Need better alias support".
