r230754 - in /trunk/gcc: ChangeLog testsuite/Ch...

[jiwang@gcc.gnu.org]

Author: jiwang
Date: Mon Nov 23 12:14:05 2015
New Revision: 230754

URL: https://gcc.gnu.org/viewcvs?rev=230754&root=gcc&view=rev
Log:
[Patch] Drop constant overflow flag in adjust_range_with_scev when possible

2015-11-23  Richard Biener  <rguenth@gcc.gnu.com>
            Jiong Wang  <jiong.wang@arm.com>

gcc/
  PR tree-optimization/68317
  PR tree-optimization/68326
  * tree-vrp.c (adjust_range_with_scev): Call drop_tree_overflow if the
  final min and max are not infinity.

gcc/testsuite/
  * gcc.dg/pr68317.c: New testcase.


Added:
    trunk/gcc/testsuite/gcc.dg/pr68317.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c