r243431 - in /trunk/gcc: ChangeLog testsuite/Ch...

[amker@gcc.gnu.org]

Author: amker
Date: Thu Dec  8 10:56:41 2016
New Revision: 243431

URL: https://gcc.gnu.org/viewcvs?rev=243431&root=gcc&view=rev
Log:
	PR middle-end/78684
	* tree-vect-loop-manip.c (create_intersect_range_checks_index): Check
	sign bit for index step of data reference.
	gcc/testsuite
	PR middle-end/78684
	* g++.dg/torture/pr78684.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr78684.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop-manip.c