* g++.dg/cpp0x/gen-attrs-42.C: Add x86_64-*-* target.
	* g++.dg/ext/attrib42.C: Ditto.
	* g++.dg/torture/pr51344.C: Ditto.
	* g++.dg/tree-ssa/pr29902.C: Ditto.
	* gcc.c-torture/execute/20010129-1.c: Ditto.
	* gcc.dg/combine_ashiftrt_2.c: Ditto.
	* gcc.dg/march-generic.c: Ditto.
	* gcc.dg/torture/pr17526.c: Ditto.
	* gcc.dg/union-4.c: Ditto.

From-SVN: r217020