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Unverified Commit 7a45b96e authored by Roman Lebedev's avatar Roman Lebedev
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[X86] AMD Zen 3: same-reg AVX XMM VPSUB{B,W,D,Q} is a zero-cycle(!) dep-breaking zero-idiom 

As confirmed by the exegesis measurements, and ref docs.
parent 1ea8be21
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