[Bug tree-optimization/88964] [8/9 Regression] ICE in wide_int_to_tree_1, at tree.c:1561

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88964

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Jan 23 08:35:38 2019
New Revision: 268179

URL: https://gcc.gnu.org/viewcvs?rev=268179&root=gcc&view=rev
Log:
        PR tree-optimization/88964
        * gimple-loop-interchange.cc (loop_cand::analyze_induction_var): Use
        build_zero_cst instead of build_int_cst.  Return false for loop
        invariants which honor signed zeros.

        * gfortran.dg/pr88964.f90: New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/pr88964.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-loop-interchange.cc
    trunk/gcc/testsuite/ChangeLog