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3747a2830e
Optimize the sequence ``` %1 = init_enum_data_addr %enum_addr, #someCaseWithPayload store %payload to %1 inject_enum_addr %enum_addr, #someCaseWithPayload ``` to ``` %1 = enum $E, #someCaseWithPayload, %payload store %1 to %enum_addr ``` This sequence of three instructions must appear in consecutive order. But usually this is the case, because it's generated this way by SILGen.