https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121570
Mikael Morin <mikael at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |mikael at gcc dot gnu.org
--- Comment #1 from Mikael Morin <mikael at gcc dot gnu.org> ---
(In reply to Bastiaan Braams from comment #0)
> I think that Andi Kleen of the gcc-bugs mailing list may add some comments
> here. He identified that under the hood ieee_next_after invokes routines to
> save the fpu state before the actual computation and to restore it
> afterwards, and this is where the bulk of the time is spent. He comments
> further that these invocations of _gfortran_ieee_procedure_{entry,exit} may
> perhaps be optimized out of the loop.
For reference the discussion was in the thread starting at:
https://gcc.gnu.org/pipermail/gcc-bugs/2025-August/925833.html