[Bug tree-optimization/84334] [8 Regression] Stack overflow with -Ofast -frounding-math

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84334

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Feb 15 11:17:05 2018
New Revision: 257683

URL: https://gcc.gnu.org/viewcvs?rev=257683&root=gcc&view=rev
Log:
        PR tree-optimization/84334
        * match.pd ((A +- CST1) +- CST2 -> A + CST3): If A is
        also a CONSTANT_CLASS_P, punt.

        * gcc.dg/pr84334.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr84334.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd
    trunk/gcc/testsuite/ChangeLog