[Bug tree-optimization/72772] Missed SCEV after pass reordering@236440

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72772

--- Comment #11 from amker at gcc dot gnu.org ---
Author: amker
Date: Tue Aug  9 15:08:02 2016
New Revision: 239291

URL: https://gcc.gnu.org/viewcvs?rev=239291&root=gcc&view=rev
Log:
        PR tree-optimization/72772
        * tree-ssa-loop-niter.c (loop_exits_before_overflow): Check equality
        for expanded base.

        gcc/testsuite
        PR tree-optimization/pr72772
        * gcc.dg/tree-ssa/pr72772.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr72772.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-loop-niter.c