[PATCH] Fix flakiness in fp16-promote.ll

[Ahmed Bougacha]

In http://reviews.llvm.org/D9112#158400, @pirama wrote:

> 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.


If you set an explicit triple, IIRC there's a default CPU chosen (in this case probably cortex-a8), so I don't expect that to vary.  Schedule variations are still possible because of other changes missing from trunk though, probably like the register allocation issue here.  (+ Renato, who would have the advice you're looking for)

In any case, bots are still broken, so this should be fixed one way or the other, soon ;)

-Ahmed


http://reviews.llvm.org/D9112

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