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

[Gábor Horváth via cfe-commits]

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@@ -0,0 +1,30 @@
+//===- LifetimeStats.cpp - Miscellaneous statistics related to C++ 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 defines the data structures and utility function for collection of
+// staticstics related to Lifetimesafety analysis.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Analysis/Analyses/LifetimeSafety/LifetimeStats.h"
+#include "llvm/Support/raw_ostream.h"
+
+namespace clang::lifetimes {
+void printStats(const LifetimeSafetyStats &Stats) {
+  llvm::errs() << "\n*** LifetimeSafety Missing Origin Stats "
+                  "(expression_type : count) :\n\n";
+  unsigned TotalMissingOrigins = 0;
+  for (const auto &[expr, count] : Stats.MissingOriginCount) {
+    llvm::errs() << expr << " : " << count << '\n';
+    TotalMissingOrigins += count;
+  }
+  llvm::errs() << "Total missing origins: " << TotalMissingOrigins << "\n";
+  llvm::errs() << "\n****************************************\n";
+}
+} // namespace clang::lifetimes
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Xazax-hun wrote:

Nit: missing new line. 

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