[Bug tree-optimization/64277] [4.9 Regression] Incorrect warning "array subscript is above array bounds"

[ienkovich at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64277

--- Comment #18 from ienkovich at gcc dot gnu.org ---
Author: ienkovich
Date: Wed Jan 28 11:41:40 2015
New Revision: 220204

URL: https://gcc.gnu.org/viewcvs?rev=220204&root=gcc&view=rev
Log:
gcc/

    PR tree-optimization/64277
    * tree-ssa-loop-niter.c (record_nonwrapping_iv): Use base
    range info when possible to refine estimation.

gcc/testsuite/

    PR tree-optimization/64277
    * gcc.dg/pr64277.c: New.


Added:
    trunk/gcc/testsuite/gcc.dg/pr64277.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-loop-niter.c