[Bug tree-optimization/70775] [7 Regression] ICE on valid code at -O3 on x86_64-linux-gnu: Segmentation fault

["amker at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70775

--- Comment #3 from amker at gcc dot gnu.org ---
Author: amker
Date: Tue Apr 26 11:10:47 2016
New Revision: 235436

URL: https://gcc.gnu.org/viewcvs?rev=235436&root=gcc&view=rev
Log:
        PR tree-optimization/70771
        PR tree-optimization/70775
        * tree-if-conv.c (if_convertible_phi_p): Remove check on special
        virtual PHI nodes.  Delete parameter.
        (if_convertible_loop_p_1): Delete argument to above function.
        (predicate_all_scalar_phis): Delete code handling single-argument
        PHIs.
        (tree_if_conversion): Mark and update virtual SSA.

        gcc/testsuite/ChangeLog
        PR tree-optimization/70771
        PR tree-optimization/70775
        * gcc.dg/pr70771.c: New test.
        * gcc.dg/pr70771.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr70771.c
    trunk/gcc/testsuite/gcc.dg/pr70775.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-if-conv.c