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0c81356419
Since this method can apply to cmpxchg operations, make sure it's clear what value we're actually retrieving. This will help ensure we don't accidentally ignore the failure ordering of cmpxchg in the future. We could potentially introduce a getOrdering() method on AtomicSDNode that asserts the operation isn't cmpxchg, but not sure that's worthwhile. Differential Revision: https://reviews.llvm.org/D103338
To-do ----- * Instruction encodings * Tailcalls * Investigate loop alignment * Add builtins