[compiler-rt] r309973 - These tests use 80-bit long doubles, which are x86 only. Mark them so.

[Joerg Sonnenberger via llvm-commits]

On Thu, Aug 03, 2017 at 06:56:54PM -0000, Sterling Augustine via llvm-commits wrote:
> Author: saugustine
> Date: Thu Aug  3 11:56:54 2017
> New Revision: 309973
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=309973&view=rev
> Log:
> These tests use 80-bit long doubles, which are x86 only. Mark them so.

Actually, that's not true. The same format is used by IA64 and M68K.
It should be kept at the very least as comment.

Joerg