[clang] [LifetimeSafety] Add missing origins stats for lifetime analysis (PR #166568)

[Gábor Horváth via cfe-commits]

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@@ -0,0 +1,33 @@
+//===- LifetimeStats.h - Miscellaneous statistics related to lifetime safety
+//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 declares the data structures and utility function for collection of
+// staticstics related to Lifetimesafety analysis.
+//
+//===----------------------------------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_ANALYSIS_ANALYSES_LIFETIMESAFETY_LIFETIMESTATS_H
+#define LLVM_CLANG_ANALYSIS_ANALYSES_LIFETIMESAFETY_LIFETIMESTATS_H
+
+#include "llvm/ADT/StringMap.h"
+
+namespace clang::lifetimes {
+/// A structure to hold the statistics related to LifetimeAnalysis.
+/// Currently it holds only the missing origin details.
+struct LifetimeSafetyStats {
+  /// A map from `ExpressionClassName<QualType>` to their missing origin
+  /// counts.
+  llvm::StringMap<unsigned> MissingOriginCount;
+};
+
+// utility function to print missing origin stats.
+void printStats(const LifetimeSafetyStats &Stats);
+} // namespace clang::lifetimes
+
+#endif // LLVM_CLANG_ANALYSIS_ANALYSES_LIFETIMESAFETY_LIFETIMESTATS_H
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Xazax-hun wrote:

Nit: missing end line at the end of file.

https://github.com/llvm/llvm-project/pull/166568