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

[jakub at gcc dot gnu.org]

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

--- Comment #32 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Feb 20 22:41:26 2019
New Revision: 269055

URL: https://gcc.gnu.org/viewcvs?rev=269055&root=gcc&view=rev
Log:
        PR middle-end/88074
        PR middle-end/89415
        * toplev.c (do_compile): Double the emin/emax exponents to workaround
        buggy mpc_norm.

        * gcc.dg/pr88074-2.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr88074-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/toplev.c