[PATCH] D18041: [ELF] use fatal() instead of llvm_unreachable when performing relaxations.

[George Rimar via llvm-commits]

>>Is that optimized away in a Release build?
>
>It can be and can be not I think. Not good solution it seems, but at least can help with debug build.
>
>>Cheers,
>>Rafael

Why not to use fatal() then ? It seems to fit the needs.

George.