demo: use `funnel_sh[lr] directly in u256 shifts#1153
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demo: use `funnel_sh[lr] directly in u256 shifts#1153tgross35 wants to merge 2 commits intorust-lang:mainfrom
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Switch to an algorithm using word-sized operations on an array to do coarse shifts, then funnel shifts for the bit shifts. The result is quite close to what LLVM generates when using native `u256` types.
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☔ The latest upstream changes (possibly #1193) made this pull request unmergeable. Please resolve the merge conflicts. |
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