Overly clever constant folding

[Walter Bright]

On 12/11/2022 12:39 PM, deadalnix wrote:
> why is constant folding done 
> there to begin with?

How else are you going to have, for example, a static initializer initialized 
with an expression? How about `static if (expression)` ?

How can you do optimization without constant folding?


> Today's optimizer are shockingly good at doing this kind of transformations

The optimizer is doing the constant folding.


> And if take a step back to the step back, we notice that this is where the "fill 
> a bug report" approach fails.

Not filing a bug report means the bug will never get fixed. The n.g. is not a 
practical bug reporting system (I know, I tried it in the early days of D).


> we should also stop inlining in there.

I do agree with that. In fact, I implemented it:

https://github.com/dlang/dmd/blob/master/compiler/src/dmd/backend/inliner.d