https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114746
--- Comment #7 from Vincent Lefèvre ---
BTW, in /usr/include/math.h from the GNU libc 2.37:
# define M_PI 3.14159265358979323846 /* pi */
i.e. M_PI is defined with 21 digits in base 10, which corresponds to about 70
digits in base
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114746
--- Comment #6 from Vincent Lefèvre ---
(In reply to Jakub Jelinek from comment #5)
> FLT_EVAL_METHOD = 0 is on some hw like the pre-SSE2 ia32 extremely
> expensive, far more so than even the very expensive -ffloat-store. That is
> certainly
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114746
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114746
--- Comment #4 from Vincent Lefèvre ---
I actually find it more confusing the fact that constants are not evaluated in
extended precision while everything else is evaluated in extended precision.
The real solution to avoid confusion would be to
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114746
--- Comment #3 from Joseph S. Myers ---
The actual effect of -fexcess-precision=fast is more like "outside the back
end, pretend excess precision doesn't exist, but the back end might use it
anyway" (complicated a bit by having genuine excess
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114746
Vincent Lefèvre changed:
What|Removed |Added
Summary|With FLT_EVAL_METHOD = 2, |With FLT_EVAL_METHOD = 2,
