https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96044
Paul Zimmermann <zimmerma+gcc at loria dot fr> changed:
What |Removed |Added
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CC| |zimmerma+gcc at loria dot fr
--- Comment #7 from Paul Zimmermann <zimmerma+gcc at loria dot fr> ---
the problem is partly solved in MPFR development branch, where jn(73333,73333)
now takes about 2 seconds on my machine, and jn(733333,733333) about 4 minutes.
Note that Wolfram Alpha fails for jn(73333,73333), and Pari/GP fails for
jn(733333,733333). Maybe a timeout should be put into the constant folding
code?
With MPFR I get 4.9602731659759520e-03 whereas gcc -fno-builtin gives
4.9602731659753978e-03, which is off by 639 ulps (assuming the MPFR value is
correct).
