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Re: GNU Lightning 2.2.1 release

From: Paul Cercueil
Subject: Re: GNU Lightning 2.2.1 release
Date: Fri, 24 Feb 2023 19:37:07 +0000 
[...]

Answer to myself:

> I would maybe benefit from having "mask extract" and "mask insert"
> functions similar to EXT/INS on MIPS.

A mask extract is just
  jit_rshi_u(rd, rs, ctz(mask));
  jit_andi(rd, rd, mask);

The backends with "mask extract" opcodes (e.g. MIPS r2) could maybe
just detect this pattern.

Cheers,
-Paul
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