[LLVMdev] AliasAnalysis refactoring for the new pass manager

[Chandler Carruth]

On Mon, Jun 15, 2015 at 3:56 PM Duncan P. N. Exon Smith <
dexonsmith at apple.com> wrote:

> I like this colour:
>
>     enum class AliasKind /* or AliasCategory? */ {
>       Null,
>       Unknown,
>       Partial,
>       Complete
>     };
>

So, the only non-bikeshed-color argument I have (which is also referenced
by Philip, but i couldn't reply to both) suggests we *really* want NoAlias,
MayAlias, and MustAlias, because these are terms of art in the literature
(confirmed by DannyB who is a reasonable expert in alias analysis
literature). I'm inclined to keep these names as a consequence. The natural
extension is PartialAlias.

That leaves the question of the enumeration name. I think "AliasResult" is
my new found favorite. Danny gave me a reason: these are really results of
a particular query, not just abstract kinds of aliasing... And its shorter
than AliasRelationship. =]

Thoughts?
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