https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96044
--- Comment #10 from Vincent Lefèvre ---
(In reply to Richard Biener from comment #8)
> The issue with timeouts (as in wall-clock) is that it makes builds
> dependent on CPU speed which is something we generally avoid. For ISL
> computations whe
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96044
--- Comment #9 from Paul Zimmermann ---
Dear Richard, about mini-gmp, note that MPFR 4.1.0 (rc2 now in test) will come
with improved mini-gmp support. From NEWS:
- Mini-gmp support: replaced --enable-mini-gmp configure option by
--with-mini-gmp
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96044
--- Comment #8 from Richard Biener ---
(In reply to Paul Zimmermann from comment #7)
> the problem is partly solved in MPFR development branch, where
> jn(7,7) now takes about 2 seconds on my machine, and
> jn(73,73) about 4 minut
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96044
Paul Zimmermann changed:
What|Removed |Added
CC||zimmerma+gcc at loria dot fr
--- Comme
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96044
--- Comment #6 from Vincent Lefèvre ---
(In reply to Richard Biener from comment #5)
> Vincent, any guidance on that? I guess the actual runtime implementation in
> glibc may be "fast" because it's not accurate (evaluating takes 0.00s with
> gli
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96044
Richard Biener changed:
What|Removed |Added
Status|WAITING |NEW
--- Comment #5 from Richard Biener
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96044
--- Comment #4 from Alex Coplan ---
I left the updated version running for ~1 hour and it didn't finish compiling.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96044
--- Comment #3 from Alex Coplan ---
Ah, it appears I just wasn't being patient enough. It seems you can make the
constant folding take longer (arbitrarily long?) by adding another digit to the
arguments.
This code:
void f(void) {
__builtin_jn
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96044
--- Comment #2 from Andrew Pinski ---
Could this be a bug in MPFR?
return do_mpfr_arg2 (result, mpfr_jn, arg0, arg1, format);
do_mpfr_arg2 does:
mpfr_inits2 (prec, m0, m1, NULL);
mpfr_from_real (m0, arg0, MPFR_RNDN);
mpfr_from_real
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96044
Richard Biener changed:
What|Removed |Added
Status|UNCONFIRMED |WAITING
Ever confirmed|0
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