[llvm] [LV][NFC] Autogen a test with integer costs per lane (PR #201560)

[Paul Walker via llvm-commits]

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@@ -47,6 +47,13 @@ using VectorParts = SmallVector<Value *, 2>;
 #define LV_NAME "loop-vectorize"
 #define DEBUG_TYPE LV_NAME
 
+#if !defined(NDEBUG)
+static cl::opt<bool> VPlanDontPrintMetadata(
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paulwalker-arm wrote:

The `Dont` looks awkward to my eye. Perhaps `VPlanPrintMetadata` or `VPlanDisableMetadataPrinting` reads better?

https://github.com/llvm/llvm-project/pull/201560