[llvm] [TableGen] Optimize intrinsic info type signature encoding (PR #106809)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,31 @@
+//===- GetIntrinsicInfoTableEntries.cpp - IIT signature benchmark ---------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "benchmark/benchmark.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/IR/Intrinsics.h"
+#include <variant>
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arsenm wrote:

I don't see variant used here 

https://github.com/llvm/llvm-project/pull/106809