andykaylor wrote: > > This might not have been noticed because, unlike the `__builtin_fmax` > > handling, Clang's `__builtin_elementwise_max` doesn't set the `nsz` flag so > > the backend never gets the message that it can ignore the sign of zero on > > operands, but I'm pretty sure that Clang's documentation for > > `__builtin_elementwise_max` is saying that the sign of zero may be ignored. > > If you really really want that, that should be a distinct elementwise > fmin/fmax. > > Alternatively we should round out the math pragmas to have nsz
The Clang documentation for `__builtin_elementwise_max` already indicates that it doesn't respect signed zero (that is, it maps to the IEEE-754 2008 `maxNum`). We could add `__builtin_elementwise_fmax` and leave `__builtin_elementwise_max` deprecated. I suppose that adds a bit of clarity, but my understanding is that it was depcrecated because we have too many variations of this already. https://github.com/llvm/llvm-project/pull/180885 _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
