[Bug tree-optimization/79186] [7 Regression] ICE on valid code at -O2 and -O3 on x86_64-linux-gnu: Segmentation fault (in VRP)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79186

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Jan 23 13:08:44 2017
New Revision: 244804

URL: https://gcc.gnu.org/viewcvs?rev=244804&root=gcc&view=rev
Log:
2017-01-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79186
        * tree-vrp.c (register_new_assert_for): Make sure we've seen
        both incoming edges before moving an assert.

        * gcc.dg/torture/pr79186.c: New testcase.
        * gcc.dg/torture/pr79187.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr79186.c
    trunk/gcc/testsuite/gcc.dg/torture/pr79187.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c