r220695 - in /trunk/gcc: ChangeLog match.pd tes...

Fri Feb 13 20:17:00 GMT 2015

Author: law
Date: Fri Feb 13 20:17:55 2015
New Revision: 220695

URL: https://gcc.gnu.org/viewcvs?rev=220695&root=gcc&view=rev
Log:
	PR rtl-optimization/47477
	* match.pd (convert (plus/minus (convert @0) (convert @1): New
	simplifier to narrow arithmetic.

	PR rtl-optimization/47477
	* gcc.dg/tree-ssa/pr47477.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr47477.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd
    trunk/gcc/testsuite/ChangeLog