[Bug tree-optimization/69070] [6 Regression] ICE: tree check: expected real_cst, have ssa_name in gimple_expand_builtin_pow, at tree-ssa-math-opts.c:1541 with -fsignaling-nans and powl()

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69070

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Jan  1 11:55:59 2016
New Revision: 232025

URL: https://gcc.gnu.org/viewcvs?rev=232025&root=gcc&view=rev
Log:
        PR tree-optimization/69070
        * tree-ssa-math-opts.c (gimple_expand_builtin_pow): Only test
        REAL_VALUE_ISSIGNALING_NAN on arg0 if arg0 is a REAL_CST.

        * gcc.dg/pr69070.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr69070.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-math-opts.c