[llvm] [VPlan] Add transformation to narrow interleave groups. (PR #106441)

[Alexey Bataev via llvm-commits]

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@@ -1663,3 +1666,125 @@ void VPlanTransforms::createInterleaveGroups(
       }
   }
 }
+
+static bool supportedLoad(VPWidenRecipe *R0, VPValue *V, unsigned Idx) {
+  if (auto *W = dyn_cast_or_null<VPWidenLoadRecipe>(V->getDefiningRecipe())) {
+    return !W->getMask() && (R0->getOperand(0) == V || R0->getOperand(1) == V);
+  }
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alexey-bataev wrote:

Drop braces?

https://github.com/llvm/llvm-project/pull/106441