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[Attributor] Simplify comparison against constant null pointer

Authored by jdoerfert on Aug 18 2020, 8:52 AM.



Comparison against null is a common pattern that usually is followed by
error handling code and the likes. We now use AANonNull to simplify
these comparisons optimistically in order to make more code dead early

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jdoerfert created this revision.Aug 18 2020, 8:52 AM
Herald added a project: Restricted Project. · View Herald TranscriptAug 18 2020, 8:52 AM
jdoerfert requested review of this revision.Aug 18 2020, 8:52 AM

I think the logic is correct, other people might want to check too.
Maybe we want to add more comments, it doesn't seem obvious what's happening here.

okura added a comment.Aug 19 2020, 6:14 AM

I think the logic is correct too and we need comments for this.
IMHO, putting the conditional into helper function would improve readability.

uenoku accepted this revision.Aug 19 2020, 9:47 AM

Great, LGTM :)

This revision is now accepted and ready to land.Aug 19 2020, 9:47 AM
This revision was landed with ongoing or failed builds.Aug 19 2020, 11:48 PM
This revision was automatically updated to reflect the committed changes.

FWIW, I moved the logic in a helper and added comments. Feel free to let me know if there is anything else :)