Are there any architectures in production today where fractional arithmetic is meaningfully different than emulated block floating point and have an LLVM backen

Are there any architectures in production today where fractional arithmetic is meaningfully different than emulated block floating point and have an LLVM backend already? I know there are some TI and ADI arch's with special fixed point data types built into their compilers (which are nonstandard extensions to C/C++, fwiw), but they are unsupported by LLVM last I checked. I've also heard that those niches are having their lunch eaten by ARM M4/M7 cores which have floating point vector instructions, and you can write Rust to target those today.