MulOverflow #75
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MulOverflow #75
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chfast
approved these changes
Jun 5, 2020
holiman
approved these changes
Jun 5, 2020
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holiman
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holiman
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LGTM, although a benchmark wouldn't hurt too.... :)
It looks like it can be shaved a bit, by not having ph there, and not doing that copy, but instead do the zero-check on the p[4,5,6,7] elements directly ?
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I'm fine with merging this though, improvements can always be done later |
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I deliberately used full umul for clarity; this operation can be optimised later if need be.