[llvm] [AArch64][SVE] Add SubtargetFeature to disable lowering unpredicated loads/stores as… (PR #170256)

[Paul Walker via llvm-commits]

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@@ -443,6 +443,8 @@ def AllowMisalignedMemAccesses
 
 def UseWzrToVecMove : Predicate<"Subtarget->useWzrToVecMove()">;
 
+def AllowUnpredicatedLdStLower
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paulwalker-arm wrote:

Fair enough. It's easily changed if other non-lowering uses crop up.

https://github.com/llvm/llvm-project/pull/170256