[PATCH] D26229: [TBAA] Drop support for "old style" scalar TBAA

[Sanjoy Das via llvm-commits]

sanjoy created this revision.
sanjoy added reviewers: manmanren, chandlerc, sunfish.
sanjoy added a subscriber: llvm-commits.
Herald added subscribers: mgorny, mcrosier.

We've had support for auto upgrading old style scalar TBAA access
metadata into the "new" struct path aware TBAA metadata for 3 years now.
The only way to actually generate old style TBAA was explicitly through
the IRBuilder API.  I think this is a good time for dropping support for
old style scalar TBAA.

I will start an RFC on llvm-dev on this topic, but I wanted to have a
patch to link to first.


https://reviews.llvm.org/D26229

Files:
  lib/Analysis/TypeBasedAliasAnalysis.cpp
  lib/IR/Verifier.cpp
  unittests/Analysis/CMakeLists.txt
  unittests/Analysis/MixedTBAATest.cpp
  unittests/Analysis/TBAATest.cpp

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