[llvm] [AArch64][SVE] Select non-temporal instructions for loads/stores with the nontemporal flag (PR #171261)

[Ricardo Jesus via llvm-commits]

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@@ -3076,6 +3075,15 @@ let Predicates = [HasSVE_or_SME] in {
               (RegImmInst ZPR:$val, (PTrue 31), GPR64:$base, (i64 0))>;
   }
 
+  defm : unpred_store<nontemporalstore, nxv16i8, STNT1B_ZRR, STNT1B_ZRI, PTRUE_B ,am_sve_regreg_lsl0>;
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rj-jesus wrote:

If you add `let AddedComplexity = 3` or similar around this block and the one below, do you still need the changes related to `temporal_load`/`temporal_store`?

Also, the commas separating the last and second-to-last arguments are misaligned.

https://github.com/llvm/llvm-project/pull/171261