[Bug rtl-optimization/63620] RELOAD lost SET_GOT dependency on Darwin

[evstupac at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63620

--- Comment #8 from Stupachenko Evgeny <evstupac at gmail dot com> ---
(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).

> 
> However, even if this will solve bootstrap, the RA should be fixed to mark
> PIC register live in case when constant is moved to memory.