[llvm] [Intrinsics][AArch64] Add intrinsics for masking off aliasing vector lanes (PR #117007)

[Sam Tebbs via llvm-commits]

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@@ -24146,13 +24147,12 @@ Semantics:
 The intrinsic returns ``poison`` if the distance between ``%prtA`` and ``%ptrB``
 is smaller than ``VF * %elementsize`` and either ``%ptrA + VF * %elementSize``
 or ``%ptrB + VF * %elementSize`` wrap.
-The element of the result mask is active when no write-after-read hazard occurs,
-meaning that:
+The element of the result mask is active when loading from %ptrA then storing to
+%ptrB is safe and doesn't result in aliasing, meaning that:
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SamTebbs33 wrote:

Done.

https://github.com/llvm/llvm-project/pull/117007