[llvm] [AArch64] Refactor creation of a shuffle mask for TBL (NFC) (PR #92529)

[Florian Hahn via llvm-commits]

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@@ -735,6 +735,12 @@ def AArch64rev64 : SDNode<"AArch64ISD::REV64", SDT_AArch64UnaryVec>;
 def AArch64ext : SDNode<"AArch64ISD::EXT", SDT_AArch64ExtVec>;
 
 def AArch64vashr : SDNode<"AArch64ISD::VASHR", SDT_AArch64vshift>;
+
+def AArch64vashr_exact : PatFrag<(ops          node:$lhs, node:$rhs),
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fhahn wrote:

looks like some changes from the follow-up commit made it in this PR?

https://github.com/llvm/llvm-project/pull/92529