[llvm] Gsymutil aggregation similar to DwarfDump --verify (PR #81154)

[Greg Clayton via llvm-commits]

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@@ -0,0 +1,107 @@
+//===- DwarfTransformer.h ---------------------------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_GSYM_OUTPUTAGGREGATOR_H
+#define LLVM_DEBUGINFO_GSYM_OUTPUTAGGREGATOR_H
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/DebugInfo/GSYM/ExtractRanges.h"
+
+#include <map>
+#include <string>
+
+namespace llvm {
+
+class raw_ostream;
+
+namespace gsym {
+
+class OutputAggregator {
+protected:
+  // A std::map is preferable over an llvm::StringMap for presenting results
+  // in a predictable order.
+  std::map<std::string, unsigned> Aggregation;
+  raw_ostream *Out;
+  bool IncludeDetail;
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clayborg wrote:

Isn't this the same as asking of `Out != nullptr`? Do we need this bool?

https://github.com/llvm/llvm-project/pull/81154