ARM first & default LDC

[Ola Fosheim Grøstad]

On Wednesday, 30 December 2020 at 18:25:41 UTC, Max Haughton 
wrote:
> WASM is a stack machine IIRC whereas most compiler 
> optimisations are traditionally stated as register machines so 
> it would be more productive to have WASM as a traditional 
> backend.

I was more thinking having the same SSA instructions/limitations. 
If one can do fast SSA->WASM then one might be able to use 
whatever WASM execution engine Chrome uses for JIT? Just a 
thought...

> I think any algorithms that rely on DAGs are also more 
> efficient with register IRs, so again it would be easy to have 
> a traditional SSA IR (probably with Block arguments instead of 
> phi because it's 2020) and convert to a stack machine 
> afterwards.

Oh, yes, for sure use a simple register IR.