r242953 - in /trunk/gcc: ChangeLog match.pd tes...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Tue Nov 29 07:48:43 2016
New Revision: 242953

URL: https://gcc.gnu.org/viewcvs?rev=242953&root=gcc&view=rev
Log:
2016-11-29  Richard Biener  <rguenther@suse.de>

	PR middle-end/78546
	* match.pd: Add CST1 - (CST2 - A) -> CST3 + A missing case.

	* gcc.dg/tree-ssa/forwprop-36.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/forwprop-36.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd
    trunk/gcc/testsuite/ChangeLog