[llvm] [KernelInfo] Implement new LLVM IR pass for GPU code analysis (PR #102944)

[Joel E. Denny via llvm-commits]

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@@ -0,0 +1,121 @@
+//=- KernelInfo.h - Kernel Analysis -------------------------------*- C++ -*-=//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the KernelInfo, KernelInfoAnalysis, and KernelInfoPrinter
+// classes used to extract function properties from a GPU kernel.
+//
+// See llvm/docs/KernelInfo.rst.
+// ===---------------------------------------------------------------------===//
+
+#ifndef LLVM_ANALYSIS_KERNELINFO_H
+#define LLVM_ANALYSIS_KERNELINFO_H
+
+#include "llvm/Analysis/OptimizationRemarkEmitter.h"
+#include "llvm/Analysis/TargetTransformInfo.h"
+
+namespace llvm {
+class DominatorTree;
+class Function;
+
+/// Data structure holding function info for kernels.
+class KernelInfo {
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jdenny-ornl wrote:

> For now, we can sink it into the impl file.

In that case, does anyone see value in keeping the KernelInfoAnalysis class for now?  KernelInfoPrinter can just call KernelInfo directly.

https://github.com/llvm/llvm-project/pull/102944