[compiler-rt] [Compiler-rt] Implement AEABI Unaligned Read/Write Helpers in compiler-rt (PR #167913)

[Eli Friedman via llvm-commits]

efriedma-quic wrote:

Is it not sufficient to build the C code with -mfpu=none or something like that?  Maybe easier to just write it in assembly and not worry about it, though.

https://github.com/llvm/llvm-project/pull/167913