[PATCH] D42209: [ModRefInfo] Return NoModRef for Must and NoModRef.

[Alina Sbirlea via Phabricator via llvm-commits]

asbirlea created this revision.
asbirlea added a reviewer: sanjoy.
Herald added a subscriber: jlebar.

In ModRefInfo "Must" was introduced to track presence of MustAlias, but we still want to return NoModRef when there is neither Mod or Ref, even when MustAlias is found. Patch has small fixes to ensure this happens.
Minor cleanup to compact 2 if statements into one when calling getModRefInfo for 2 ImmutableCallSites.


Repository:
  rL LLVM

https://reviews.llvm.org/D42209

Files:
  lib/Analysis/AliasAnalysis.cpp
  lib/Analysis/BasicAliasAnalysis.cpp

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