[LLVMdev] Replacing phi nodes in ScalarEvolution while preserving LCSSA form

[Jakub Staszak]

It doesn't seem to fix PR8622.

On Nov 17, 2010, at 8:39 PM, Dan Gohman wrote:

> On Nov 17, 2010, at 11:03 AM, Duncan Sands wrote:
> 
>> Hi Dan, I whipped up this patch as a more optimal test of whether
>> replacing the phi node PN by V will break LCSSA form.  I hope it
>> is more or less correct, but since I know nothing about loops it
>> could well be completely bogus :)  Can you please comment on it.
> 
> Looks good to me.
> 
> Thanks,
> 
> Dan
> 
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