[clang] [llvm] [Intrinsics][AArch64] Add intrinsic to mask off aliasing vector lanes (PR #117007)

[Sam Tebbs via llvm-commits]

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@@ -2033,6 +2041,25 @@ bool AArch64TargetLowering::shouldExpandGetActiveLaneMask(EVT ResVT,
   return false;
 }
 
+bool AArch64TargetLowering::shouldExpandGetAliasLaneMask(
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SamTebbs33 wrote:

It certainly can. Done.

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