* gcc.dg/atomic-compare-exchange-1.c,

	* gcc.dg/atomic-compare-exchange-1.c,
	gcc.dg/atomic-compare-exchange-2.c,
	gcc.dg/atomic-compare-exchange-3.c,
	gcc.dg/atomic-compare-exchange-4.c,
	gcc.dg/atomic-compare-exchange-5.c, gcc.dg/atomic-exchange-1.c,
	gcc.dg/atomic-exchange-2.c, gcc.dg/atomic-exchange-3.c,
	gcc.dg/atomic-exchange-4.c, gcc.dg/atomic-exchange-5.c,
	gcc.dg/atomic-fence.c, gcc.dg/atomic-flag.c,
	gcc.dg/atomic-generic.c, gcc.dg/atomic-invalid.c,
	gcc.dg/atomic-load-1.c, gcc.dg/atomic-load-2.c,
	gcc.dg/atomic-load-3.c, gcc.dg/atomic-load-4.c,
	gcc.dg/atomic-load-5.c, gcc.dg/atomic-lockfree.c,
	gcc.dg/atomic-noinline.c, gcc.dg/atomic-op-1.c,
	gcc.dg/atomic-op-2.c, gcc.dg/atomic-op-3.c, gcc.dg/atomic-op-4.c,
	gcc.dg/atomic-op-5.c, gcc.dg/atomic-param.c,
	gcc.dg/atomic-store-1.c, gcc.dg/atomic-store-2.c,
	gcc.dg/atomic-store-3.c, gcc.dg/atomic-store-4.c,
	gcc.dg/atomic-store-5.c: Declare main as returning int.
	* gcc.dg/atomic-exchange-1.c, gcc.dg/atomic-exchange-2.c,
	gcc.dg/atomic-exchange-3.c, gcc.dg/atomic-exchange-4.c,
	gcc.dg/atomic-exchange-5.c: Separate increments of count from
	expression using value of count.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204545 138bc75d-0d04-0410-961f-82ee72b054a4