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I know that it was decoded into 2 micro-ops and thus had to be decoded by the wide decoder, so perhaps 2 cycles?

That could be. Agner's tables seem to confirm that.

Per Fog's tables, Ice Lake shows a reg-to-reg cmov decoding to 1 uop with a latency of 1 and throughput of 0.5. *mont all have latency 2. P4 had a latency of 6. AMD's K10 latency 4.

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