[PATCH] D124571: Avoid strict aliasing violation on type punning inside llvm::PointerIntPair

[Breno Rodrigues Guimaraes via Phabricator via llvm-commits]

brenoguim added a comment.

> I was thinking a `union { Ptr Data; void* VoidPtr }` or something like that.  If you access the union via memcpy, it shouldn't matter which member of the union is active, I think?

I have no idea, maybe. But I also have to support the `getPointerAddress` API which doesn't use memcpy, so it would force me to know which member is active.

I think I'll go with the aligned array of char for safety, if that's alright.


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  https://reviews.llvm.org/D124571/new/

https://reviews.llvm.org/D124571