[LLVMdev] Mul & div support for wider-than-legal types

[Paweł Bylica]

Hi LLVM,

   1. Can mul and/or div support be added for big integer types like i256?
   2. What are the limits?
   3. If yes, how should it be done?

I have experience only with X86 target and know that mul i128 works and div
i128 is lowered to function call from compile-rt like library (what works
only if you link with such library). Can that support be extended?

- Paweł
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