[Bug tree-optimization/77862] [7 Regression] ice in add_equivalence

[kugan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77862

--- Comment #5 from kugan at gcc dot gnu.org ---
Author: kugan
Date: Thu Oct  6 19:58:46 2016
New Revision: 240842

URL: https://gcc.gnu.org/viewcvs?rev=240842&root=gcc&view=rev
Log:
Fix PR77862
gcc/testsuite/ChangeLog:

2016-10-06  Kugan Vivekanandarajah  <kug...@linaro.org>

        PR tree-optimization/77862
        * gcc.dg/pr77862.c: New test.

gcc/ChangeLog:

2016-10-06  Kugan Vivekanandarajah  <kug...@linaro.org>

        PR tree-optimization/77862
        * tree-vrp.c (add_equivalence): Use get_value_range so that
        num_vr_values is checked before accessing vr_values.



Added:
    trunk/gcc/testsuite/gcc.dg/pr77862.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c