[llvm] [VPlan] Transform VPFirstOrderRecurrencePHIRecipe into concrete recipes (PR #172009)

[Ramkumar Ramachandra via llvm-commits]

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@@ -572,6 +573,13 @@ Value *VPInstruction::generate(VPTransformState &State) {
     Value *B = State.get(getOperand(1), OnlyFirstLaneUsed);
     return Builder.CreateCmp(getPredicate(), A, B, Name);
   }
+  case Instruction::InsertElement: {
+    assert(State.VF.isVector() && "Only insert element into vector");
+    Value *Vec = State.get(getOperand(0));
+    Value *Elt = State.get(getOperand(1), /*IsScalar=*/true);
+    Value *Idx = State.get(getOperand(2), /*IsScalar=*/true);
+    return Builder.CreateInsertElement(Vec, Elt, Idx, Name);
+  }
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artagnon wrote:

Could move this directly after ExtractElement?

https://github.com/llvm/llvm-project/pull/172009