[llvm] r204433 - [Constant Hoisting] Change the algorithm to only track constants for instructions.

[Juergen Ributzka]

PHI nodes were not handled by the new algorithm until r204435. This is why I had to temporally change one of the PHI test cases.

-Juergen 

On Mar 31, 2014, at 4:30 PM, Eric Christopher <echristo at gmail.com> wrote:

> Looks pretty nice as a refactoring change. What's up with the testcase
> change, I couldn't quite spot it.
> 
> -eric

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