Sorry for the last email. I'm not sure what happened I don't use mutt to write emails that often. I meant to say the below

I'm not sure how many developers would say that after looking at the assembly.

clang (21.1) and gcc (15.2) are nowhere near the __thread codegen, it's almost 10x the code

Not behavior, the optimized assembly is terrible, relatively speaking.

Unless you care about performance, which is why I measured and noticed this years ago.
I was talking to this with a friend (and ran into a situation where __thread won't compile).
I figure this may not get fixed unless it's discussed