[LLVMdev] SimplifyCFG vs loops

[Krzysztof Parzyszek]

On 11/20/2012 4:35 PM, Humphreys, Jonathan wrote:
> What was the resolution to this issue?  Was the patch accepted?
>

On my side, I am still swamped with my "regularly scheduled programming" 
and so I wasn't able to prepare a convincing testcase to show the 
detrimental effects of SimplifyCFG.  If someone else has such a testcase 
it would be great.

We should agree on a specific loop structure that will be maintained 
throughout the entire optimization phase (at least on the bitcode 
level).  That would both, simplify loop optimizations, and enable 
optimizations that would otherwise have their opportunities obscured.

-Krzysztof

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