[llvm] [AssumeBundles] Dereferenceable used in bundle only applies at assume. (PR #126117)

[Florian Hahn via llvm-commits]

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@@ -2926,6 +2928,11 @@ the behavior is undefined, unless one of the following exceptions applies:
   (including a zero alignment). If this is the case, then the pointer value
   must be a null pointer, otherwise the behavior is undefined.
 
+* ``dereferenceable(<n>)`` operand bundles only guarantee the pointer is
+    dereferenceable at the point of the assumption. The pointer may not be
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fhahn wrote:

Should hopefully be fixed by 2d6330f83a64a414f83d647bba7f23928f66aa5c

https://github.com/llvm/llvm-project/pull/126117