D37144: [gold] Fix up a new test to allow it to pass on non x86 builds.

[David Green via llvm-commits]

Maxim / Renato, any opinions on adding these X86 gold tests to some of the arm bots?

It comes up every now and again, like in https://reviews.llvm.org/D37144

I'm not sure if it gold or the X86 backend that would be missing.

Cheers
Dave