[Bug tree-optimization/71230] [7 Regression] ICE : in zero_one_operation, at tree-ssa-reassoc.c:1230

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71230

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon May 23 14:09:35 2016
New Revision: 236591

URL: https://gcc.gnu.org/viewcvs?rev=236591&root=gcc&view=rev
Log:
2016-05-23  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/71230
        * tree-ssa-reassoc.c (acceptable_pow_call): Move initial condition...
        (try_special_add_to_ops): ... here.  Always test for single-use.

        * gfortran.dg/pr71230-1.f90: New testcase.
        * gfortran.dg/pr71230-2.f90: Likewise.

Added:
    trunk/gcc/testsuite/gfortran.dg/pr71230-1.f90
    trunk/gcc/testsuite/gfortran.dg/pr71230-2.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-reassoc.c