r240616 - in /trunk/gcc: ChangeLog match.pd tes...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Thu Sep 29 12:28:19 2016
New Revision: 240616

URL: https://gcc.gnu.org/viewcvs?rev=240616&root=gcc&view=rev
Log:
2016-09-29  Richard Biener  <rguenther@suse.de>

	PR middle-end/77407
	* match.pd: Add X / abs (X) -> X < 0 ? -1 : 1 and
	X / -X -> -1 simplifications.

	* gcc.dg/pr77407.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/pr77407.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd
    trunk/gcc/testsuite/ChangeLog