[llvm] [IA]: Construct (de)interleave4 out of (de)interleave2 (PR #89276)

[Paul Walker via llvm-commits]

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@@ -16946,9 +17068,8 @@ bool AArch64TargetLowering::lowerDeinterleaveIntrinsicToLoad(
   Value *BaseAddr = LI->getPointerOperand();
   Value *Result;
   if (NumLoads > 1) {
-    Value *Left = PoisonValue::get(VTy);
-    Value *Right = PoisonValue::get(VTy);
-
+    // Create multiple legal small ldN instead of a wide one.
+    SmallVector<Value *, 4> WideValues(Factor, (PoisonValue::get(VTy)));
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paulwalker-arm wrote:

Redundant brackets wrapping `PoisonValue::get(VTy)`?

https://github.com/llvm/llvm-project/pull/89276