[Bug tree-optimization/68157] [5/6 Regression] internal compiler error: in reassoc_stmt_dominates_stmt_p, at tree-ssa-reassoc.c:1287

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68157

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Nov 18 10:23:21 2015
New Revision: 230530

URL: https://gcc.gnu.org/viewcvs?rev=230530&root=gcc&view=rev
Log:
        PR tree-optimization/68157
        * tree-ssa-reassoc.c (attempt_builtin_powi): Set uid of
        pow_stmt or mul_stmt from stmt's uid.
        (reassociate_bb): Set uid of mul_stmt from stmt's uid.

        * g++.dg/opt/pr68157.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/opt/pr68157.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-reassoc.c