Raymond Chen's take on so-called zero cost exceptions

[Elronnd]

On Tuesday, 1 March 2022 at 12:51:08 UTC, deadalnix wrote:
> I'm not sure that gcc's code is actually better, it's pretty 
> much the same, with the cold section split out. The only 
> notable difference in is to use add/mov vs lea for gcc.

Yes:

1. hot/cold splitting

2. lea vs add/mov (marginal, but still smaller)

3. branchless h

I think all of these qualify gcc's code as better.

> Interestingly, i submitted a patch to split exception code in 
> cold section for LLVM the way GCC does it, but it ended up not 
> being merged :/

Curious, why not?