[llvm] [CodeGen] Use __extendhfsf2 and __truncsfhf2 by default (PR #126880)

[Nikita Popov via llvm-commits]

nikic wrote:

Okay, looking a bit more deeply, libgcc only seems to actually enable __extendhfsf2 and __truncsfhf2 for i386 and riscv, if I'm reading the sources correctly.

So while I still think it makes sense to use these symbols instead of the ARM ones, it probably makes little practical difference...

https://github.com/llvm/llvm-project/pull/126880