Re: Question on how register allocation is done on the lua compiler

[Hive Heap <hive.heap@...>]

That's interesting, could you send me the link where it states that? I Want to read more about it. Regardless, I still think this is a bit illogical behavior, considering how it's written, but good to know.

Thanks.

On Fri, Apr 28, 2023 at 5:55 PM Gé Weijers <ge@weijers.org> wrote:

On Fri, Apr 28, 2023 at 1:49 AM Ziyao <ziyao@disroot.org> wrote:

> As far as I know, most languages do the expected output, such as c++,
> Java, Python, and even Luau now.
> Is there a specific reason for choosing this behavior?

There is nothing stopping a C or C++ compiler from reordering assignments and many other operations, this is very explicitly allowed in the standards, and helps produce faster code by avoiding pipeline stalls. 

 

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Gé