* 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.

From-SVN: r204545

re PR testsuite/51258 (64-bit gcc.dg/atomic-compare-exchange-5.c link failure on 32-bit Solaris/x86)

	PR testsuite/51258
	* lib/target-supports.exp
	(check_effective_target_sync_long_long): Also supported on 32bit
	x86 targets.  Add comment about required dg-options.
	Add alpha*-*-* targets.
	(check_effective_target_sync_long_long_runtime): Ditto.

	* gcc.dg/atomic-op-4.c (dg-options): Add -march=pentium for
	32bit x86 targets.
	* gcc.dg/atomic-compare-exchange-4.c: Ditto.
	* gcc.dg/atomic-exchange-4.c: Ditto.
	* gcc.dg/atomic-load-4.c: Ditto.
	* gcc.dg/atomic-store-4.c: Ditto.
	* gcc.dg/di-longlong64-sync-1.c: Ditto.
	* gcc.dg/di-sync-multithread.c: Ditto.
	* gcc.dg/simulate-thread/atomic-load-longlong.c: Ditto.
	* gcc.dg/simulate-thread/atomic-other-longlong.c: Ditto.

From-SVN: r181728

re PR testsuite/51258 (64-bit gcc.dg/atomic-compare-exchange-5.c link failure on 32-bit Solaris/x86)

	PR testsuite/51258
	* lib/target-supports.exp
	(check_effective_target_sync_int_128_runtime): New procedure.
	(check_effective_target_sync_long_long_runtime): Ditto.
	(check_effective_target_sync_long_long): Add arm*-*-*.
	(check_effective_target_sync_longlong): Remove.

	* gcc.dg/atomic-op-5.c: Require sync_int_128_runtime effective target.
	* gcc.dg/atomic-compare-exchange-5.c: Ditto.
	* gcc.dg/atomic-exchange-5.c: Ditto.
	* gcc.dg/atomic-load-5.c: Ditto.
	* gcc.dg/atomic-store-5.c: Ditto.
	* gcc.dg/simulate-thread/atomic-load-int128.c: Ditto.
	* gcc.dg/simulate-thread/atomic-other-int128.c: Ditto.
	* gcc.dg/atomic-op-4.c: Require sync_long_long_runtime
	effective target.
	* gcc.dg/atomic-compare-exchange-4.c: Ditto.
	* gcc.dg/atomic-exchange-4.c: Ditto.
	* gcc.dg/atomic-load-4.c: Ditto.
	* gcc.dg/atomic-store-4.c: Ditto.
	* gcc.dg/di-longlong64-sync-1.c: Ditto.
	* gcc.dg/di-sync-multithread.c: Ditto.
	* gcc.dg/simulate-thread/atomic-load-longlong.c: Ditto.
	* gcc.dg/simulate-thread/atomic-other-longlong.c: Ditto.

From-SVN: r181727

From-SVN: r181031