https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121159
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |ebotcazou at gcc dot gnu.org
--- Comment #22 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> I must say I'm not sure how musttail calls work at all on SPARC at -O0.
> The thing is sparc_function_ok_for_sibcall depends on flag_delayed_branch
> and that is only enabled by default for -O1 and higher.
> Perhaps we need to enable some subset of delayed branch processing in
> cfun->has_musttail functions even if !flag_delayed_branch?
-fno-delayed-branch should prevail though, either implicitly or explicitly, so
the error at -O0 is OK in my opinion.
