[clang] Clang: Drop float support from __builtin_elementwise_max (PR #180885)

[Nikita Popov via cfe-commits]

nikic wrote:

The context here is that there are at least 4 notions of what "max" means for floating-point numbers that are in common use, and the used semantics should not hidden behind such an innocuous name.

It would probably make more sense to warn if this intrinsic is used with floats rather than not supporting them entirely.

https://github.com/llvm/llvm-project/pull/180885