2017-11-07  Marc Glisse  <marc.glisse@inria.fr>

gcc/
	* match.pd ((a&~b)|(a^b),(a&~b)^~a,(a|b)&~(a^b),a|~(a^b),
	(a|b)|(a&^b),(a&b)|~(a^b),~(~a&b),~X^Y): New transformations.

gcc/testsuite/
	* gcc.dg/tree-ssa/bitops-1.c: New file.

From-SVN: r254495