[PATCH] D134410: [clang][CodeGen] Add noundef metadata to load instructions (preliminary)

[Vitaly Buka via Phabricator via cfe-commits]

vitalybuka added a comment.

In D134410#3860646 <https://reviews.llvm.org/D134410#3860646>, @xbolva00 wrote:

>> I assume with this patch landed, many such cases may change code behavior. So we will need to update msan to have a tool to detect cases like this anyway.
>
> I believe that updated msan should come first.

Yes, we can do that.


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