[clang] [TBAA] Emit distinct TBAA tags for pointers with different depths,types. (PR #76612)

[Nikolas Klauser via cfe-commits]

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@@ -392,6 +392,10 @@ Non-comprehensive list of changes in this release
 - ``#pragma GCC diagnostic warning "-Wfoo"`` can now downgrade ``-Werror=foo``
   errors and certain default-to-error ``-W`` diagnostics to warnings.
 
+- Clang now emits distinct type-based alias analysis tags for incompatible
+  pointers, enabling more powerful alias analysis when accessing pointer types.
+  The new behavior can be disabledusing ``-fno-pointer-tbaa``.
----------------
philnik777 wrote:

```suggestion
  The new behavior can be disabled using ``-fno-pointer-tbaa``.
```

https://github.com/llvm/llvm-project/pull/76612