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In general, we probably want to try the multi-use reciprocal transform before sqrt transforms, but x/sqrt(x) is a special-case because that will always reduce to plain sqrt(x) or an estimate. The AArch64 tests show that the transform is limited by TLI hook to patterns where there are 3 or more uses of the divisor. So this change can result in an extra division compared to what we had, but that's the intended behvior based on the current setting of that hook.
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