[PATCH] Fix for bug 21725: wrong results with union and strict-aliasing

[hfinkel at anl.gov]

In http://reviews.llvm.org/D8056#141899, @jeroen.dobbelaere wrote:

> Further investigation shows that llvm/lib/Analysis/TypeBasedAliasAnalysis.cpp is not ready to handle struct types where multiple members have the same (0) offset. The clang fix only makes sense once that issue is resolved.


Can you work on this? If not (or even if you can), can you file a bug report with an example?


http://reviews.llvm.org/D8056

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