[Bug tree-optimization/88074] [7/8/9 Regression] g++ hangs on math expression

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88074

--- Comment #13 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
MPFR deals with larger exponent ranges for intermediate computations 
itself (MPFR functions generally set the maximum possible exponent range 
internally).  MPC generally doesn't seem to, so quite likely setting an 
exponent range could show up some MPC bugs.