[llvm] r179026 - Generate PPC early conditional returns

[Krzysztof Parzyszek]

On 4/9/2013 12:07 PM, Hal Finkel wrote:
>
> I think that early if conversion is too early because it happens before epilogue generation.

Does this cause a problem?
Early return can help avoid a PHI node in the return block, and can 
expose opportunity for shrink-wrapping.

-Krzysztof

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