https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94694
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |burnus at gcc dot gnu.org
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
libgfortran already has a huge collection of fallback functions, in
intrinsics/c99_functions.c
and so IMNSHO we should just handle fma{,f,l} and copysign in there, we already
handle copysignf there.
A fallback for fma can be just x * y + z, I know it isn't perfect, but didn't
glibc have that for more than a decade?
copysign fallback can be __builtin_copysign if configure proves it is not
expanded by the compiler as copysign call, I think we emit it inline on all
sane arches.
