[llvm] [AArch64][SVE] Mark AES instructions commutable. (PR #142919)

[Paul Walker via llvm-commits]

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@@ -9254,7 +9254,9 @@ class sve2_crypto_des_bin_op<bits<2> opc, string asm, ZPRRegOp zprty>
 }
 
 multiclass sve2_crypto_des_bin_op<bits<2> opc, string asm, ZPRRegOp zprty,
-                                  SDPatternOperator op, ValueType vt> {
+                                  SDPatternOperator op, ValueType vt,
+                                  bit commutable = 0> {
+  let isCommutable = commutable in
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paulwalker-arm wrote:

Can you just wrap the two instruction definitions in `let isCommutable = 1 in {}`?

https://github.com/llvm/llvm-project/pull/142919