2007-09-02  David Daney  <ddaney@avtrex.com>

	* config/mips/mips.md (UNSPEC_COMPARE_AND_SWAP, UNSPEC_SYNC_OLD_OP,
	UNSPEC_SYNC_NEW_OP, UNSPEC_SYNC_EXCHANGE): New define_constants.
	(optab, insn): Add more attributes.
	(fetchop_bit): New code macro.
	(immediate_insn): New code macro attribute.
	(sync): Change condition to ISA_HAS_SYNC.
	(rdhwr): Change predicate for operand 0 to register_operand.
	(memory_barrier): New expand.
	(sync_compare_and_swap<mode>, sync_add<mode>, sync_sub<mode>,
	sync_old_add<mode>, sync_old_sub<mode>, sync_new_add<mode>,
	sync_new_sub<mode>, sync_<optab><mode>,	sync_old_<optab><mode>,
	sync_new_<optab><mode>, sync_nand<mode>, sync_old_nand<mode>,
	sync_new_nand<mode>, sync_lock_test_and_set<mode>): New insns.
	* config/mips/mips.h (ISA_HAS_SYNC, ISA_HAS_LL_SC): New ISA predicates.
	(MIPS_COMPARE_AND_SWAP, MIPS_SYNC_OP, MIPS_SYNC_OLD_OP,
	MIPS_SYNC_NEW_OP, MIPS_SYNC_NAND, MIPS_SYNC_OLD_NAND,
	MIPS_SYNC_NEW_NAND, MIPS_SYNC_EXCHANGE): New Macros.
	
2007-09-02  David Daney  <ddaney@avtrex.com>
	* gcc.target/mips/gcc-have-sync-compare-and-swap-1.c: New test.
	* gcc.target/mips/gcc-have-sync-compare-and-swap-2.c: Ditto.
	* gcc.target/mips/atomic-memory-1.c: Ditto.
	* testsuite/gcc.target/mips/atomic-memory-2.c: Ditto.

From-SVN: r128037