[llvm] [LV][VPlan] Add initial support for CSA vectorization (PR #106560)

[Florian Hahn via llvm-commits]

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@@ -1569,6 +1622,11 @@ static void transformRecipestoEVLRecipes(VPlan &Plan, VPValue &EVL) {
     }
     recursivelyDeleteDeadRecipes(HeaderMask);
   }
+
+  // We build the scalar version of a CSA when VF=ElementCount::getFixed(1),
+  // which does not require an EVL.
+  if (!Plan.hasScalarVFOnly())
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fhahn wrote:

does this apply to the other EVL recipes as well?


https://github.com/llvm/llvm-project/pull/106560