[LLVMdev] Another LiveInterval Question

Evan Cheng evan.cheng at apple.com
Thu Jan 17 15:22:48 PST 2008


On Jan 17, 2008, at 1:49 PM, David Greene wrote:

> Post-phi-elimination, when can a LiveInterval VNInfo have a ~1 or ~0  
> def
> value?  I've seen ~0 on intervals created for spills.  Can it happen  
> anywhere
> else?

They can be created during coalescing.

Evan

>
>
>                                                -Dave
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