[PATCH] D33328: [CodeGen] Pessimize aliasing for union members (and may-alias) objects

[Krzysztof Parzyszek via Phabricator via cfe-commits]

kparzysz updated this revision to Diff 100142.
kparzysz added a comment.

Pass char TBAA directly to DecorateInstructionWithTBAA and pass true for ConvertTypeToTag in such cases.


Repository:
  rL LLVM

https://reviews.llvm.org/D33328

Files:
  lib/CodeGen/CGExpr.cpp
  test/CodeGen/union-tbaa1.c
  test/CodeGenCXX/union-tbaa2.cpp

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