yxsamliu wrote:

> > Will the metadata for unsafe-fp-atomics also be controlled by the pragma 
> > that controls the no-fine-grained and no-remote metadata? e.g. something 
> > like
> > ```
> > #pragma clang atomics begin no-fine-grained(on) no-remote(on) unsafe-fp(on)
> > ```
> 
> Yes, I would expect something like that for consistency. The most problematic 
> part is the denormal flushing in some address spaces, and secondarily the 
> fixed rounding mode in other cases

we might document that those are not supported for now. if users really need 
them, introducing more controls to support them

https://github.com/llvm/llvm-project/pull/69229
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