[PATCH] Fix flakiness in fp16-promote.ll

[Pirama Arumuga Nainar]

I can probably add regular expressions to match registers.  It is still a problem that a different instruction schedule will cause the test to fail.

Is it possible that an explicit target CPU or another option in the command line will remove the variations?  If so, we should do that instead of changing the test.  I am not familiar enough with the backend to  know this.


http://reviews.llvm.org/D9112

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