D to ASM.js vs D to Dart (VM)

[Etienne via Digitalmars-d]

On 2014-05-16 2:14 AM, Paulo Pinto wrote:
>
> Only if you are speaking about V8, as the other VMs (Nashorn, Webkit,
> Gecko) do use bytecodes, multiple levels actually.
>
> --
> Paulo

Well it does need to be converted to bytecode at some point but my point 
is that there can be changes in the code's typing - Javascript is not 
typed so the dynamic typing is taken for granted but in a typed language 
it's an important decision to just switch over an 64 bit -> 8 bit 
dynamically depending on profiling, it has the potential to adjust 
instructions for branch prediction to succeed more and even carry more 
into the CPU registers for tight algorithms which (theoretically) would 
beat plain C with -O3 on intel compilers with an intel cpu =)