[llvm] [VPlan] Improve code in VPInstruction::generate (NFC) (PR #169470)

[Florian Hahn via llvm-commits]

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@@ -900,7 +897,7 @@ Value *VPInstruction::generate(VPTransformState &State) {
     // each part of the reduction.
     unsigned UF = getNumOperands() - 1;
     VectorParts RdxParts(UF);
-    for (unsigned Part = 0; Part < UF; ++Part)
+    for (unsigned Part : seq<unsigned>(UF))
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fhahn wrote:

IMO both ways are fine, but I am also not sure changing from one way to the other is necessarily a clear-cut  improvement and adds churn/costs time.

https://github.com/llvm/llvm-project/pull/169470