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2013-02-11ARC: Atomic/bitops/cmpxchg/barriersVineet Gupta1-0/+232
This covers the UP / SMP (with no hardware assist for atomic r-m-w) as well as ARC700 LLOCK/SCOND insns based. Signed-off-by: Vineet Gupta <vgupta@synopsys.com>