[Bug c/86420] [9 regression] nextafter(0x1p-1022,0) is constant folded

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86420

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Jul  9 10:56:47 2018
New Revision: 262517

URL: https://gcc.gnu.org/viewcvs?rev=262517&root=gcc&view=rev
Log:
        PR c/86420
        * real.c (real_nextafter): Return true if result is denormal.

        * gcc.dg/nextafter-1.c (TEST): Adjust the tests that expect denormals
        to be returned and when first argument is not 0, so that they don't do
        anything for NEED_EXC or NEED_ERRNO.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/real.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/nextafter-1.c