[Bug rtl-optimization/63620] RELOAD lost SET_GOT dependency on Darwin
ubizjak at gmail dot com
Mon Oct 27 10:22:00 GMT 2014
--- Comment #9 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Stupachenko Evgeny from comment #8)
> (In reply to Uroš Bizjak from comment #7)
> > The difference si that the call to f128_p3 does not expand with "use (reg:SI
> > bx)" tag in the Darwin case. Probably ix86_expand_call should be fixed for
> > TARGET_MACHO
> Darwin generates indirect access throw generated section: .symbol_stub.
> They don't use EBX in the call even without any changes (relaxing EBX usage).
I guess that the mentioned "use" in the call is what keeps PIC register live
accross push in the non-Darwin case.
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