[libc-commits] [libc] [libc][math][c23] Add entrypoints and tests for totalorder{, f, l, f128} (PR #100593)

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overmighty wrote:

I'm guessing x86 `long double` needs special handling in `fputil::totalorder`, since only the `totalorderl` tests are failing.

https://github.com/llvm/llvm-project/pull/100593