playing with Souper tonight, it easily proves these popcounts from wikipedia to be equivalent to each otherpic.twitter.com/IlW9Anfk1E
Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.
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| Country | Code | For customers of |
|---|---|---|
| United States | 40404 | (any) |
| Canada | 21212 | (any) |
| United Kingdom | 86444 | Vodafone, Orange, 3, O2 |
| Brazil | 40404 | Nextel, TIM |
| Haiti | 40404 | Digicel, Voila |
| Ireland | 51210 | Vodafone, O2 |
| India | 53000 | Bharti Airtel, Videocon, Reliance |
| Indonesia | 89887 | AXIS, 3, Telkomsel, Indosat, XL Axiata |
| Italy | 4880804 | Wind |
| 3424486444 | Vodafone | |
| » See SMS short codes for other countries | ||
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playing with Souper tonight, it easily proves these popcounts from wikipedia to be equivalent to each otherpic.twitter.com/IlW9Anfk1E
are you aware of any tool that is able to prove equiv of two different memcpy implementations in LLVM IR?
Equivalence modulo UB, or no? (i.e. does it get to take restrict into account?)
I think equivalence modulo UB is the only way to do it
I don't think you can define equivalence otherwise.
Without "modulo UB/restrict", memcpy impls would have to be same-order-on-overlapping to be equiv.
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