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

ubizjak at gmail dot com gcc-bugzilla@gcc.gnu.org
Mon Oct 27 13:20:00 GMT 2014


--- Comment #11 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Stupachenko Evgeny from comment #10)

> Anyway, if call is not EBX dependent (say local call in Linux) the issue is
> not reproduced (like in example from PR63618).
> So the issue looks like Darwin dependent RA issue.

True. In Darwin case, RA allocates %eax, which is call-used register and
clobbered by the call to f128_p3. I don't see %eax saved around the call.

In Linux case, RA allocates %edi, which is call-saved.

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