optim: avoid div in millerLoopAndFinalExpResult#1363
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yelhousni merged 1 commit intoConsensys:masterfrom Dec 19, 2024
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optim: avoid div in millerLoopAndFinalExpResult#1363yelhousni merged 1 commit intoConsensys:masterfrom
yelhousni merged 1 commit intoConsensys:masterfrom
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cc @yelhousni , see also #1347 (reply in thread) |
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Thanks for spotting it 👍
Indeed it saves 1585 scs corresponding to the equality check in the hinted DivUnchecked.
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Description
Super minor optimisation to replace a div with a mul, for exponentiation by
λ' = q^3 - q^2 + q. We already have the inv so we can just exp the inverse byq^2and mul (instead of exp and div).How has this been tested?