[dataflow] PATCH more fixes for arm.

[Kenneth Zadeck]

Paolo Bonzini wrote:
> Kenneth Zadeck wrote:
>> This patch fixes two problems that were identified by testing on the arm
>> simulator:
>>
>> Combine needs the unmolested output of the UR problem as well as the
>> unmolested output of the LR, not the two combined.  Much of this patch
>> is devoted to splitting these two problems and then defining a third
>> problem CLRUR (Combined LR UR) that is the and of the two problems.
>
> Since we access it with DF_LIVE_IN, can't we call the problem
> "DF_LIFE" instead of a pretty cryptic acronym?
>
> As you say in the file, if you need access to life information, you
> probably will want DF_CLRUR.
>
> Paolo
I will do something, I see your point.

kenny