Seeking benchmarking program, for math library functions

hi, I'm working in benchmarking and need to compare math library functions between different datatypes. E.g. pow( x, y ) in doubles vs. long doubles, want to cover also decimal datatypes. Think that's somewhere between "FLOPS" and "application". Actually I'm working with a homebrew iterating loop and timing with rdtscp(), it works quite good, for "throughput", however I'm curious if similar is available as standardized solution to gain comparability to other results, and get a standardized split in "throughput" vs. "latency". TIA for any help.