r249732 - in /trunk/gcc: ChangeLog match.pd tes...

[glisse@gcc.gnu.org]

Author: glisse
Date: Wed Jun 28 09:22:30 2017
New Revision: 249732

URL: https://gcc.gnu.org/viewcvs?rev=249732&root=gcc&view=rev
Log:
Simplify 3*x == 3*y for wrapping types

2017-06-28  Marc Glisse  <marc.glisse@inria.fr>

gcc/
	* match.pd ((X & ~Y) | (~X & Y)): Generalize to + and ^.
	(x * C EQ/NE y * C): New transformation.

gcc/testsuite/
	* gcc.dg/tree-ssa/addadd.c: Remove test duplicated in addadd-2.c.
	* gcc.dg/tree-ssa/mulcmp-1.c: New file.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/mulcmp-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/addadd.c