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[Bug libgcc/64677] incorrect result with complex division?
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 20 Jan 2015 19:07:05 +0000
- Subject: [Bug libgcc/64677] incorrect result with complex division?
- Auto-submitted: auto-generated
- References: <bug-64677-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64677
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Sanjay Patel from comment #5)
> (In reply to Mikhail Maltsev from comment #3)
> > So, compile-time result is more precise. BTW, what does the disassembly look
> > like?
>
> In the -O0 case, it looks like all of the math is handled in:
> call ___ieee_divdc3
Is this the one in libgcc or part of Apple's libc? If it is part of Apple's
libc, then the bug is there. Apple's libc implementation of ___ieee_divdc3 has
known issues IIRC.