[llvm] [hwasan] Omit tag check for null pointers (PR #122206)

[Thurston Dang via llvm-commits]

thurstond wrote:

> That's what I though. The patch is LGTM, as it's relatively simple. But maybe we don't need it.

The patch uses KnownBits value analysis, which is beneficial to shareholders.


https://github.com/llvm/llvm-project/pull/122206