https://github.com/zw3917 updated 
https://github.com/llvm/llvm-project/pull/155023

>From d978cb5b17b7a8450226825a8fd85f2054166059 Mon Sep 17 00:00:00 2001
From: Ziyi Wang <zw3...@nyu.edu>
Date: Fri, 22 Aug 2025 09:17:25 -0700
Subject: [PATCH 1/6] [lldb] Add count for errors of DWO files in statistics

---
 lldb/include/lldb/Symbol/SymbolFile.h         |   4 +
 lldb/include/lldb/Target/Statistics.h         |   1 +
 .../SymbolFile/DWARF/SymbolFileDWARF.cpp      |  18 +++
 .../SymbolFile/DWARF/SymbolFileDWARF.h        |   3 +
 lldb/source/Target/Statistics.cpp             |   5 +
 .../commands/statistics/basic/TestStats.py    | 115 ++++++++++++++++++
 .../statistics/basic/dwo_error_foo.cpp        |  10 ++
 .../statistics/basic/dwo_error_main.cpp       |   5 +
 8 files changed, 161 insertions(+)
 create mode 100644 lldb/test/API/commands/statistics/basic/dwo_error_foo.cpp
 create mode 100644 lldb/test/API/commands/statistics/basic/dwo_error_main.cpp

diff --git a/lldb/include/lldb/Symbol/SymbolFile.h 
b/lldb/include/lldb/Symbol/SymbolFile.h
index bbc615d9fdc38..7f590fc2e7e64 100644
--- a/lldb/include/lldb/Symbol/SymbolFile.h
+++ b/lldb/include/lldb/Symbol/SymbolFile.h
@@ -496,6 +496,10 @@ class SymbolFile : public PluginInterface {
   ///     symbol file doesn't support DWO files, both counts will be 0.
   virtual std::pair<uint32_t, uint32_t> GetDwoFileCounts() { return {0, 0}; }
 
+  /// Calculates the count of dwo load error, return the number of dwo file 
with
+  /// errors, 0 by default.
+  virtual uint32_t CountDwoLoadErrors() { return 0; }
+
   virtual lldb::TypeSP
   MakeType(lldb::user_id_t uid, ConstString name,
            std::optional<uint64_t> byte_size, SymbolContextScope *context,
diff --git a/lldb/include/lldb/Target/Statistics.h 
b/lldb/include/lldb/Target/Statistics.h
index 55dff8861a9ab..6dd09cac890b8 100644
--- a/lldb/include/lldb/Target/Statistics.h
+++ b/lldb/include/lldb/Target/Statistics.h
@@ -155,6 +155,7 @@ struct ModuleStats {
   bool debug_info_had_incomplete_types = false;
   uint32_t dwo_file_count = 0;
   uint32_t loaded_dwo_file_count = 0;
+  uint32_t dwo_load_error_count = 0;
 };
 
 struct ConstStringStats {
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp 
b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
index 9958af26379b9..51ad43894d982 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -4529,3 +4529,21 @@ std::pair<uint32_t, uint32_t> 
SymbolFileDWARF::GetDwoFileCounts() {
 
   return {loaded_dwo_count, total_dwo_count};
 }
+
+uint32_t SymbolFileDWARF::CountDwoLoadErrors() {
+  uint32_t dwo_load_error_count = 0;
+
+  DWARFDebugInfo &info = DebugInfo();
+  const size_t num_cus = info.GetNumUnits();
+  for (size_t cu_idx = 0; cu_idx < num_cus; cu_idx++) {
+    DWARFUnit *dwarf_cu = info.GetUnitAtIndex(cu_idx);
+    if (dwarf_cu == nullptr)
+      continue;
+
+    // Check if this unit has dwo error (False by default).
+    const Status &dwo_error = dwarf_cu->GetDwoError();
+    if (dwo_error.Fail())
+      dwo_load_error_count++;
+  }
+  return dwo_load_error_count;
+}
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h 
b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
index d7db8a3c0869f..349ea9ef8224b 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
@@ -288,6 +288,9 @@ class SymbolFileDWARF : public SymbolFileCommon {
   // CUs and total DWO CUs. For non-split-dwarf files, this reports 0 for both.
   std::pair<uint32_t, uint32_t> GetDwoFileCounts() override;
 
+  /// Count the number of dwo load errors happened.
+  uint32_t CountDwoLoadErrors() override;
+
   DWARFContext &GetDWARFContext() { return m_context; }
 
   const std::shared_ptr<SymbolFileDWARFDwo> &GetDwpSymbolFile();
diff --git a/lldb/source/Target/Statistics.cpp 
b/lldb/source/Target/Statistics.cpp
index 909f335687b21..20ade32f488ea 100644
--- a/lldb/source/Target/Statistics.cpp
+++ b/lldb/source/Target/Statistics.cpp
@@ -75,6 +75,7 @@ json::Value ModuleStats::ToJSON() const {
   module.try_emplace("symbolTableSymbolCount", symtab_symbol_count);
   module.try_emplace("dwoFileCount", dwo_file_count);
   module.try_emplace("loadedDwoFileCount", loaded_dwo_file_count);
+  module.try_emplace("dwoLoadErrorCount", dwo_load_error_count);
 
   if (!symbol_locator_time.map.empty()) {
     json::Object obj;
@@ -326,6 +327,7 @@ llvm::json::Value DebuggerStats::ReportStatistics(
   uint32_t symtab_symbol_count = 0;
   uint32_t total_loaded_dwo_file_count = 0;
   uint32_t total_dwo_file_count = 0;
+  uint32_t total_dwo_load_error_count = 0;
   for (size_t image_idx = 0; image_idx < num_modules; ++image_idx) {
     Module *module = target != nullptr
                          ? 
target->GetImages().GetModuleAtIndex(image_idx).get()
@@ -361,6 +363,8 @@ llvm::json::Value DebuggerStats::ReportStatistics(
           sym_file->GetDwoFileCounts();
       total_dwo_file_count += module_stat.dwo_file_count;
       total_loaded_dwo_file_count += module_stat.loaded_dwo_file_count;
+      module_stat.dwo_load_error_count += current_dwo_errors;
+      total_dwo_load_error_count += current_dwo_errors;
       module_stat.debug_info_index_loaded_from_cache =
           sym_file->GetDebugInfoIndexWasLoadedFromCache();
       if (module_stat.debug_info_index_loaded_from_cache)
@@ -437,6 +441,7 @@ llvm::json::Value DebuggerStats::ReportStatistics(
       {"totalSymbolTableSymbolCount", symtab_symbol_count},
       {"totalLoadedDwoFileCount", total_loaded_dwo_file_count},
       {"totalDwoFileCount", total_dwo_file_count},
+      {"totalDwoLoadErrorCount", total_dwo_load_error_count},
   };
 
   if (include_targets) {
diff --git a/lldb/test/API/commands/statistics/basic/TestStats.py 
b/lldb/test/API/commands/statistics/basic/TestStats.py
index e9ee8b8661e5a..7a2dc213ce6fd 100644
--- a/lldb/test/API/commands/statistics/basic/TestStats.py
+++ b/lldb/test/API/commands/statistics/basic/TestStats.py
@@ -1,6 +1,8 @@
+import glob
 import json
 import os
 import re
+import shutil
 
 import lldb
 from lldbsuite.test.decorators import *
@@ -179,6 +181,7 @@ def test_default_no_run(self):
             "totalDebugInfoParseTime",
             "totalDwoFileCount",
             "totalLoadedDwoFileCount",
+            "totalDwoLoadErrorCount",
         ]
         self.verify_keys(debug_stats, '"debug_stats"', debug_stat_keys, None)
         if self.getPlatform() != "windows":
@@ -291,6 +294,7 @@ def test_default_with_run(self):
             "totalDebugInfoParseTime",
             "totalDwoFileCount",
             "totalLoadedDwoFileCount",
+            "totalDwoLoadErrorCount",
         ]
         self.verify_keys(debug_stats, '"debug_stats"', debug_stat_keys, None)
         stats = debug_stats["targets"][0]
@@ -331,6 +335,7 @@ def test_memory(self):
             "totalDebugInfoByteSize",
             "totalDwoFileCount",
             "totalLoadedDwoFileCount",
+            "totalDwoLoadErrorCount",
         ]
         self.verify_keys(debug_stats, '"debug_stats"', debug_stat_keys, None)
 
@@ -385,6 +390,7 @@ def test_modules(self):
             "totalDebugInfoByteSize",
             "totalDwoFileCount",
             "totalLoadedDwoFileCount",
+            "totalDwoLoadErrorCount",
         ]
         self.verify_keys(debug_stats, '"debug_stats"', debug_stat_keys, None)
         stats = debug_stats["targets"][0]
@@ -407,6 +413,7 @@ def test_modules(self):
             "symbolTableSavedToCache",
             "dwoFileCount",
             "loadedDwoFileCount",
+            "dwoLoadErrorCount",
             "triple",
             "uuid",
         ]
@@ -497,6 +504,7 @@ def test_breakpoints(self):
             "totalDebugInfoByteSize",
             "totalDwoFileCount",
             "totalLoadedDwoFileCount",
+            "totalDwoLoadErrorCount",
         ]
         self.verify_keys(debug_stats, '"debug_stats"', debug_stat_keys, None)
         target_stats = debug_stats["targets"][0]
@@ -655,6 +663,113 @@ def test_dwp_dwo_file_count(self):
         self.assertEqual(debug_stats["totalDwoFileCount"], 2)
         self.assertEqual(debug_stats["totalLoadedDwoFileCount"], 2)
 
+    @add_test_categories(["dwo"])
+    def test_dwo_missing_error_stats(self):
+        """
+        Test that DWO missing errors are reported correctly in statistics.
+        This test:
+        1) Builds a program with split DWARF (.dwo files)
+        2) Delete all two .dwo files
+        3) Verify that 2 DWO load errors are reported in statistics
+        """
+        da = {
+            "CXX_SOURCES": "dwo_error_main.cpp dwo_error_foo.cpp",
+            "EXE": self.getBuildArtifact("a.out"),
+        }
+        # -gsplit-dwarf creates separate .dwo files,
+        # Expected output: dwo_error_main.dwo (contains main) and 
dwo_error_foo.dwo (contains foo struct/function)
+        self.build(dictionary=da, debug_info="dwo")
+        self.addTearDownCleanup(dictionary=da)
+        exe = self.getBuildArtifact("a.out")
+
+        # Remove the two .dwo files to trigger a DWO load error
+        dwo_files = glob.glob(self.getBuildArtifact("*.dwo"))
+        for dwo_file in dwo_files:
+            os.rename(dwo_file, dwo_file + ".bak")
+
+        target = self.createTestTarget(file_path=exe)
+        debug_stats = self.get_stats()
+
+        # Check DWO load error statistics are reported
+        self.assertIn("totalDwoLoadErrorCount", debug_stats)
+        self.assertEqual(debug_stats["totalDwoLoadErrorCount"], 2)
+
+        # Since there's only one module, module stats should have the same 
count as total count
+        self.assertIn("dwoLoadErrorCount", debug_stats["modules"][0])
+        self.assertEqual(debug_stats["modules"][0]["dwoLoadErrorCount"], 2)
+
+        # Restore the original .dwo file
+        for dwo_file in dwo_files:
+            os.rename(dwo_file + ".bak", dwo_file)
+
+    @add_test_categories(["dwo"])
+    def test_dwo_id_mismatch_error_stats(self):
+        """
+        Test that DWO ID mismatch errors are reported correctly in statistics.
+        This test:
+        1) Builds a program with split DWARF (.dwo files)
+        2) Change one of the source file content and rebuild
+        3) Replace the new .dwo file with the original one to create a DWO ID 
mismatch
+        4) Verifies that a DWO load error is reported in statistics
+        5) Restores the original source file
+        """
+        da = {
+            "CXX_SOURCES": "dwo_error_main.cpp dwo_error_foo.cpp",
+            "EXE": self.getBuildArtifact("a.out"),
+        }
+        # -gsplit-dwarf creates separate .dwo files,
+        # Expected output: dwo_error_main.dwo (contains main) and 
dwo_error_foo.dwo (contains foo struct/function)
+        self.build(dictionary=da, debug_info="dwo")
+        self.addTearDownCleanup(dictionary=da)
+        exe = self.getBuildArtifact("a.out")
+
+        # Find and make a backup of the original .dwo file
+        dwo_files = glob.glob(self.getBuildArtifact("*.dwo"))
+
+        original_dwo_file = dwo_files[1]
+        original_dwo_backup = original_dwo_file + ".bak"
+        shutil.copy2(original_dwo_file, original_dwo_backup)
+
+        target = self.createTestTarget(file_path=exe)
+        initial_stats = self.get_stats()
+        self.assertIn("totalDwoLoadErrorCount", initial_stats)
+        self.assertEqual(initial_stats["totalDwoLoadErrorCount"], 0)
+        self.dbg.DeleteTarget(target)
+
+        # Get the original file size before modification
+        source_file_path = self.getSourcePath("dwo_error_foo.cpp")
+        original_size = os.path.getsize(source_file_path)
+
+        try:
+            # Modify the source code  and rebuild
+            with open(source_file_path, "a") as f:
+                f.write("\n void additional_foo(){}\n")
+
+            # Rebuild and replace the new .dwo file with the original one
+            self.build(dictionary=da, debug_info="dwo")
+            shutil.copy2(original_dwo_backup, original_dwo_file)
+
+            # Create a new target and run to a breakpoint to force DWO file 
loading
+            target = self.createTestTarget(file_path=exe)
+            debug_stats = self.get_stats()
+
+            # Check that DWO load error statistics are reported
+            self.assertIn("totalDwoLoadErrorCount", debug_stats)
+            self.assertEqual(debug_stats["totalDwoLoadErrorCount"], 1)
+
+            # Since there's only one module, module stats should have the same 
count as total count
+            self.assertIn("dwoLoadErrorCount", debug_stats["modules"][0])
+            self.assertEqual(debug_stats["modules"][0]["dwoLoadErrorCount"], 1)
+
+        finally:
+            # Remove the appended content
+            with open(source_file_path, "a") as f:
+                f.truncate(original_size)
+
+            # Restore the original .dwo file
+            if os.path.exists(original_dwo_backup):
+                os.unlink(original_dwo_backup)
+
     @skipUnlessDarwin
     @no_debug_info_test
     def test_dsym_binary_has_symfile_in_stats(self):
diff --git a/lldb/test/API/commands/statistics/basic/dwo_error_foo.cpp 
b/lldb/test/API/commands/statistics/basic/dwo_error_foo.cpp
new file mode 100644
index 0000000000000..41618bdcee958
--- /dev/null
+++ b/lldb/test/API/commands/statistics/basic/dwo_error_foo.cpp
@@ -0,0 +1,10 @@
+struct foo {
+  int x;
+  bool y;
+};
+
+void dwo_error_foo() {
+  foo f;
+  f.x = 1;
+  f.y = true;
+}
diff --git a/lldb/test/API/commands/statistics/basic/dwo_error_main.cpp 
b/lldb/test/API/commands/statistics/basic/dwo_error_main.cpp
new file mode 100644
index 0000000000000..4f09bd74e1fd6
--- /dev/null
+++ b/lldb/test/API/commands/statistics/basic/dwo_error_main.cpp
@@ -0,0 +1,5 @@
+void dwo_error_foo();
+int main() {
+  dwo_error_foo();
+  return 0;
+}

>From 698bc9ea4b70ecb3981380615579a296ac064999 Mon Sep 17 00:00:00 2001
From: Ziyi Wang <zw3...@nyu.edu>
Date: Sun, 24 Aug 2025 16:24:54 -0700
Subject: [PATCH 2/6] Combine DWO counting statistics into a single DWOStats
 struct

---
 lldb/include/lldb/Symbol/SymbolFile.h         | 24 +++++++-----
 lldb/include/lldb/Target/Statistics.h         |  2 +-
 .../SymbolFile/DWARF/SymbolFileDWARF.cpp      | 37 ++++++-------------
 .../SymbolFile/DWARF/SymbolFileDWARF.h        | 12 +++---
 lldb/source/Target/Statistics.cpp             | 21 ++++++-----
 .../commands/statistics/basic/TestStats.py    | 24 ++++++------
 6 files changed, 56 insertions(+), 64 deletions(-)

diff --git a/lldb/include/lldb/Symbol/SymbolFile.h 
b/lldb/include/lldb/Symbol/SymbolFile.h
index 7f590fc2e7e64..49e3573292595 100644
--- a/lldb/include/lldb/Symbol/SymbolFile.h
+++ b/lldb/include/lldb/Symbol/SymbolFile.h
@@ -488,17 +488,23 @@ class SymbolFile : public PluginInterface {
     return false;
   };
 
-  /// Get number of loaded/parsed DWO files. This is emitted in "statistics
-  /// dump"
+  /// Holds statistics about DWO (Debug With Object) files.
+  struct DWOStats {
+    uint32_t loaded_dwo_file_count = 0;
+    uint32_t dwo_file_count = 0;
+    uint32_t dwo_error_count = 0;
+  };
+
+  /// Retrieves statistics about DWO files associated with this symbol file.
+  /// This function returns a DWOStats struct containing:
+  ///   - The number of successfully loaded/parsed DWO files.
+  ///   - The total number of DWO files encountered.
+  ///   - The number of DWO CUs that failed to load due to errors.
+  /// If this symbol file does not support DWO files, all counts will be zero.
   ///
   /// \returns
-  ///     A pair containing (loaded_dwo_count, total_dwo_count). If this
-  ///     symbol file doesn't support DWO files, both counts will be 0.
-  virtual std::pair<uint32_t, uint32_t> GetDwoFileCounts() { return {0, 0}; }
-
-  /// Calculates the count of dwo load error, return the number of dwo file 
with
-  /// errors, 0 by default.
-  virtual uint32_t CountDwoLoadErrors() { return 0; }
+  ///   A DWOStats struct with loaded, total, and error counts for DWO files.
+  virtual DWOStats GetDwoStats() { return {}; }
 
   virtual lldb::TypeSP
   MakeType(lldb::user_id_t uid, ConstString name,
diff --git a/lldb/include/lldb/Target/Statistics.h 
b/lldb/include/lldb/Target/Statistics.h
index 6dd09cac890b8..1cd78b195a7c9 100644
--- a/lldb/include/lldb/Target/Statistics.h
+++ b/lldb/include/lldb/Target/Statistics.h
@@ -155,7 +155,7 @@ struct ModuleStats {
   bool debug_info_had_incomplete_types = false;
   uint32_t dwo_file_count = 0;
   uint32_t loaded_dwo_file_count = 0;
-  uint32_t dwo_load_error_count = 0;
+  uint32_t dwo_error_count = 0;
 };
 
 struct ConstStringStats {
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp 
b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
index 5c95200abd1bd..e41dfdf190697 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -90,7 +90,7 @@
 #include <cctype>
 #include <cstring>
 
-//#define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN
+// #define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN
 
 #ifdef ENABLE_DEBUG_PRINTF
 #include <cstdio>
@@ -1716,7 +1716,7 @@ SymbolFileDWARF 
*SymbolFileDWARF::GetDIERefSymbolFile(const DIERef &die_ref) {
     return this;
 
   if (file_index) {
-      // We have a SymbolFileDWARFDebugMap, so let it find the right file
+    // We have a SymbolFileDWARFDebugMap, so let it find the right file
     if (SymbolFileDWARFDebugMap *debug_map = GetDebugMapSymfile())
       return debug_map->GetSymbolFileByOSOIndex(*file_index);
 
@@ -1725,7 +1725,8 @@ SymbolFileDWARF 
*SymbolFileDWARF::GetDIERefSymbolFile(const DIERef &die_ref) {
       return GetDwpSymbolFile().get(); // DWP case
 
     // Handle the .dwo file case correctly
-    return DebugInfo().GetUnitAtIndex(*die_ref.file_index())
+    return DebugInfo()
+        .GetUnitAtIndex(*die_ref.file_index())
         ->GetDwoSymbolFile(); // DWO case
   }
   return this;
@@ -4502,9 +4503,8 @@ void SymbolFileDWARF::GetCompileOptions(
   }
 }
 
-std::pair<uint32_t, uint32_t> SymbolFileDWARF::GetDwoFileCounts() {
-  uint32_t total_dwo_count = 0;
-  uint32_t loaded_dwo_count = 0;
+SymbolFile::DWOStats SymbolFileDWARF::GetDwoStats() {
+  SymbolFile::DWOStats stats;
 
   DWARFDebugInfo &info = DebugInfo();
   const size_t num_cus = info.GetNumUnits();
@@ -4517,34 +4517,21 @@ std::pair<uint32_t, uint32_t> 
SymbolFileDWARF::GetDwoFileCounts() {
     if (!dwarf_cu->GetDWOId().has_value())
       continue;
 
-    total_dwo_count++;
+    stats.dwo_file_count++;
 
     // If we have a DWO symbol file, that means we were able to successfully
     // load it.
     SymbolFile *dwo_symfile =
         dwarf_cu->GetDwoSymbolFile(/*load_all_debug_info=*/false);
     if (dwo_symfile) {
-      loaded_dwo_count++;
+      stats.loaded_dwo_file_count++;
     }
-  }
-
-  return {loaded_dwo_count, total_dwo_count};
-}
-
-uint32_t SymbolFileDWARF::CountDwoLoadErrors() {
-  uint32_t dwo_load_error_count = 0;
-
-  DWARFDebugInfo &info = DebugInfo();
-  const size_t num_cus = info.GetNumUnits();
-  for (size_t cu_idx = 0; cu_idx < num_cus; cu_idx++) {
-    DWARFUnit *dwarf_cu = info.GetUnitAtIndex(cu_idx);
-    if (dwarf_cu == nullptr)
-      continue;
 
-    // Check if this unit has dwo error (False by default).
+    // Check if this unit has a DWO load error, false by default.
     const Status &dwo_error = dwarf_cu->GetDwoError();
     if (dwo_error.Fail())
-      dwo_load_error_count++;
+      stats.dwo_error_count++;
   }
-  return dwo_load_error_count;
+
+  return stats;
 }
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h 
b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
index 349ea9ef8224b..8b8cb5859e8a0 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
@@ -283,13 +283,11 @@ class SymbolFileDWARF : public SymbolFileCommon {
   bool GetSeparateDebugInfo(StructuredData::Dictionary &d, bool errors_only,
                             bool load_all_debug_info = false) override;
 
-  // Gets a pair of loaded and total dwo file counts.
-  // For split-dwarf files, this reports the counts for successfully loaded DWO
-  // CUs and total DWO CUs. For non-split-dwarf files, this reports 0 for both.
-  std::pair<uint32_t, uint32_t> GetDwoFileCounts() override;
-
-  /// Count the number of dwo load errors happened.
-  uint32_t CountDwoLoadErrors() override;
+  /// Gets statistics about dwo files associated with this symbol file.
+  /// For split-dwarf files, this reports the counts for successfully loaded 
DWO
+  /// CUs, total DWO CUs, and the number of DWO CUs with loading errors.
+  /// For non-split-dwarf files, this reports 0 for all.
+  DWOStats GetDwoStats() override;
 
   DWARFContext &GetDWARFContext() { return m_context; }
 
diff --git a/lldb/source/Target/Statistics.cpp 
b/lldb/source/Target/Statistics.cpp
index 0f9eb5a785163..0dab6aa0b7861 100644
--- a/lldb/source/Target/Statistics.cpp
+++ b/lldb/source/Target/Statistics.cpp
@@ -75,7 +75,7 @@ json::Value ModuleStats::ToJSON() const {
   module.try_emplace("symbolTableSymbolCount", symtab_symbol_count);
   module.try_emplace("dwoFileCount", dwo_file_count);
   module.try_emplace("loadedDwoFileCount", loaded_dwo_file_count);
-  module.try_emplace("dwoLoadErrorCount", dwo_load_error_count);
+  module.try_emplace("dwoErrorCount", dwo_error_count);
 
   if (!symbol_locator_time.map.empty()) {
     json::Object obj;
@@ -327,7 +327,7 @@ llvm::json::Value DebuggerStats::ReportStatistics(
   uint32_t symtab_symbol_count = 0;
   uint32_t total_loaded_dwo_file_count = 0;
   uint32_t total_dwo_file_count = 0;
-  uint32_t total_dwo_load_error_count = 0;
+  uint32_t total_dwo_error_count = 0;
   for (size_t image_idx = 0; image_idx < num_modules; ++image_idx) {
     Module *module = target != nullptr
                          ? 
target->GetImages().GetModuleAtIndex(image_idx).get()
@@ -359,13 +359,14 @@ llvm::json::Value DebuggerStats::ReportStatistics(
         for (const auto &symbol_module : symbol_modules.Modules())
           module_stat.symfile_modules.push_back((intptr_t)symbol_module.get());
       }
-      std::tie(module_stat.loaded_dwo_file_count, module_stat.dwo_file_count) =
-          sym_file->GetDwoFileCounts();
-      total_dwo_file_count += module_stat.dwo_file_count;
-      total_loaded_dwo_file_count += module_stat.loaded_dwo_file_count;
-      uint32_t current_dwo_errors = sym_file->CountDwoLoadErrors();
-      module_stat.dwo_load_error_count += current_dwo_errors;
-      total_dwo_load_error_count += current_dwo_errors;
+      SymbolFile::DWOStats current_dwo_stats = sym_file->GetDwoStats();
+      module_stat.loaded_dwo_file_count +=
+          current_dwo_stats.loaded_dwo_file_count;
+      module_stat.dwo_file_count += current_dwo_stats.dwo_file_count;
+      module_stat.dwo_error_count += current_dwo_stats.dwo_error_count;
+      total_dwo_file_count += current_dwo_stats.dwo_file_count;
+      total_loaded_dwo_file_count += current_dwo_stats.loaded_dwo_file_count;
+      total_dwo_error_count += current_dwo_stats.dwo_error_count;
       module_stat.debug_info_index_loaded_from_cache =
           sym_file->GetDebugInfoIndexWasLoadedFromCache();
       if (module_stat.debug_info_index_loaded_from_cache)
@@ -442,7 +443,7 @@ llvm::json::Value DebuggerStats::ReportStatistics(
       {"totalSymbolTableSymbolCount", symtab_symbol_count},
       {"totalLoadedDwoFileCount", total_loaded_dwo_file_count},
       {"totalDwoFileCount", total_dwo_file_count},
-      {"totalDwoLoadErrorCount", total_dwo_load_error_count},
+      {"totalDwoErrorCount", total_dwo_error_count},
   };
 
   if (include_targets) {
diff --git a/lldb/test/API/commands/statistics/basic/TestStats.py 
b/lldb/test/API/commands/statistics/basic/TestStats.py
index 7a2dc213ce6fd..d41877eaf8996 100644
--- a/lldb/test/API/commands/statistics/basic/TestStats.py
+++ b/lldb/test/API/commands/statistics/basic/TestStats.py
@@ -670,7 +670,7 @@ def test_dwo_missing_error_stats(self):
         This test:
         1) Builds a program with split DWARF (.dwo files)
         2) Delete all two .dwo files
-        3) Verify that 2 DWO load errors are reported in statistics
+        3) Verify that 2 DWO errors are reported in statistics
         """
         da = {
             "CXX_SOURCES": "dwo_error_main.cpp dwo_error_foo.cpp",
@@ -691,12 +691,12 @@ def test_dwo_missing_error_stats(self):
         debug_stats = self.get_stats()
 
         # Check DWO load error statistics are reported
-        self.assertIn("totalDwoLoadErrorCount", debug_stats)
-        self.assertEqual(debug_stats["totalDwoLoadErrorCount"], 2)
+        self.assertIn("totalDwoErrorCount", debug_stats)
+        self.assertEqual(debug_stats["totalDwoErrorCount"], 2)
 
         # Since there's only one module, module stats should have the same 
count as total count
-        self.assertIn("dwoLoadErrorCount", debug_stats["modules"][0])
-        self.assertEqual(debug_stats["modules"][0]["dwoLoadErrorCount"], 2)
+        self.assertIn("dwoErrorCount", debug_stats["modules"][0])
+        self.assertEqual(debug_stats["modules"][0]["dwoErrorCount"], 2)
 
         # Restore the original .dwo file
         for dwo_file in dwo_files:
@@ -710,7 +710,7 @@ def test_dwo_id_mismatch_error_stats(self):
         1) Builds a program with split DWARF (.dwo files)
         2) Change one of the source file content and rebuild
         3) Replace the new .dwo file with the original one to create a DWO ID 
mismatch
-        4) Verifies that a DWO load error is reported in statistics
+        4) Verifies that a DWO error is reported in statistics
         5) Restores the original source file
         """
         da = {
@@ -732,8 +732,8 @@ def test_dwo_id_mismatch_error_stats(self):
 
         target = self.createTestTarget(file_path=exe)
         initial_stats = self.get_stats()
-        self.assertIn("totalDwoLoadErrorCount", initial_stats)
-        self.assertEqual(initial_stats["totalDwoLoadErrorCount"], 0)
+        self.assertIn("totalDwoErrorCount", initial_stats)
+        self.assertEqual(initial_stats["totalDwoErrorCount"], 0)
         self.dbg.DeleteTarget(target)
 
         # Get the original file size before modification
@@ -754,12 +754,12 @@ def test_dwo_id_mismatch_error_stats(self):
             debug_stats = self.get_stats()
 
             # Check that DWO load error statistics are reported
-            self.assertIn("totalDwoLoadErrorCount", debug_stats)
-            self.assertEqual(debug_stats["totalDwoLoadErrorCount"], 1)
+            self.assertIn("totalDwoErrorCount", debug_stats)
+            self.assertEqual(debug_stats["totalDwoErrorCount"], 1)
 
             # Since there's only one module, module stats should have the same 
count as total count
-            self.assertIn("dwoLoadErrorCount", debug_stats["modules"][0])
-            self.assertEqual(debug_stats["modules"][0]["dwoLoadErrorCount"], 1)
+            self.assertIn("dwoErrorCount", debug_stats["modules"][0])
+            self.assertEqual(debug_stats["modules"][0]["dwoErrorCount"], 1)
 
         finally:
             # Remove the appended content

>From 3881633f1bb7a1af20d15d26f4539dd5b0ab1c90 Mon Sep 17 00:00:00 2001
From: Ziyi Wang <zw3...@nyu.edu>
Date: Thu, 28 Aug 2025 13:29:23 -0700
Subject: [PATCH 3/6] Reuse DWOStats in Statistics

---
 lldb/include/lldb/Symbol/SymbolFile.h | 46 +++++++++++++++------------
 lldb/include/lldb/Target/Statistics.h |  5 ++-
 lldb/source/Target/Statistics.cpp     | 25 ++++++---------
 3 files changed, 37 insertions(+), 39 deletions(-)

diff --git a/lldb/include/lldb/Symbol/SymbolFile.h 
b/lldb/include/lldb/Symbol/SymbolFile.h
index 49e3573292595..671a2483783bf 100644
--- a/lldb/include/lldb/Symbol/SymbolFile.h
+++ b/lldb/include/lldb/Symbol/SymbolFile.h
@@ -493,6 +493,12 @@ class SymbolFile : public PluginInterface {
     uint32_t loaded_dwo_file_count = 0;
     uint32_t dwo_file_count = 0;
     uint32_t dwo_error_count = 0;
+
+    DWOStats operator+(const DWOStats &rhs) const {
+      return DWOStats{loaded_dwo_file_count + rhs.loaded_dwo_file_count,
+                      dwo_file_count + rhs.dwo_file_count,
+                      dwo_error_count + rhs.dwo_error_count};
+    }
   };
 
   /// Retrieves statistics about DWO files associated with this symbol file.
@@ -506,14 +512,15 @@ class SymbolFile : public PluginInterface {
   ///   A DWOStats struct with loaded, total, and error counts for DWO files.
   virtual DWOStats GetDwoStats() { return {}; }
 
-  virtual lldb::TypeSP
-  MakeType(lldb::user_id_t uid, ConstString name,
-           std::optional<uint64_t> byte_size, SymbolContextScope *context,
-           lldb::user_id_t encoding_uid,
-           Type::EncodingDataType encoding_uid_type, const Declaration &decl,
-           const CompilerType &compiler_qual_type,
-           Type::ResolveState compiler_type_resolve_state,
-           uint32_t opaque_payload = 0) = 0;
+  virtual lldb::TypeSP MakeType(lldb::user_id_t uid, ConstString name,
+                                std::optional<uint64_t> byte_size,
+                                SymbolContextScope *context,
+                                lldb::user_id_t encoding_uid,
+                                Type::EncodingDataType encoding_uid_type,
+                                const Declaration &decl,
+                                const CompilerType &compiler_qual_type,
+                                Type::ResolveState compiler_type_resolve_state,
+                                uint32_t opaque_payload = 0) = 0;
 
   virtual lldb::TypeSP CopyType(const lldb::TypeSP &other_type) = 0;
 
@@ -607,7 +614,7 @@ class SymbolFileCommon : public SymbolFile {
     return m_debug_info_had_variable_errors;
   }
   void SetDebugInfoHadFrameVariableErrors() override {
-     m_debug_info_had_variable_errors = true;
+    m_debug_info_had_variable_errors = true;
   }
 
   /// This function is used to create types that belong to a SymbolFile. The
@@ -622,21 +629,20 @@ class SymbolFileCommon : public SymbolFile {
                         const CompilerType &compiler_qual_type,
                         Type::ResolveState compiler_type_resolve_state,
                         uint32_t opaque_payload = 0) override {
-     lldb::TypeSP type_sp (new Type(
-         uid, this, name, byte_size, context, encoding_uid,
-         encoding_uid_type, decl, compiler_qual_type,
-         compiler_type_resolve_state, opaque_payload));
-     m_type_list.Insert(type_sp);
-     return type_sp;
+    lldb::TypeSP type_sp(new Type(
+        uid, this, name, byte_size, context, encoding_uid, encoding_uid_type,
+        decl, compiler_qual_type, compiler_type_resolve_state, 
opaque_payload));
+    m_type_list.Insert(type_sp);
+    return type_sp;
   }
 
   lldb::TypeSP CopyType(const lldb::TypeSP &other_type) override {
-     // Make sure the real symbol file matches when copying types.
-     if (GetBackingSymbolFile() != other_type->GetSymbolFile())
+    // Make sure the real symbol file matches when copying types.
+    if (GetBackingSymbolFile() != other_type->GetSymbolFile())
       return lldb::TypeSP();
-     lldb::TypeSP type_sp(new Type(*other_type));
-     m_type_list.Insert(type_sp);
-     return type_sp;
+    lldb::TypeSP type_sp(new Type(*other_type));
+    m_type_list.Insert(type_sp);
+    return type_sp;
   }
 
 protected:
diff --git a/lldb/include/lldb/Target/Statistics.h 
b/lldb/include/lldb/Target/Statistics.h
index 1cd78b195a7c9..bf00dd3eb146d 100644
--- a/lldb/include/lldb/Target/Statistics.h
+++ b/lldb/include/lldb/Target/Statistics.h
@@ -10,6 +10,7 @@
 #define LLDB_TARGET_STATISTICS_H
 
 #include "lldb/DataFormatters/TypeSummary.h"
+#include "lldb/Symbol/SymbolFile.h"
 #include "lldb/Utility/ConstString.h"
 #include "lldb/Utility/RealpathPrefixes.h"
 #include "lldb/Utility/Stream.h"
@@ -153,9 +154,7 @@ struct ModuleStats {
   bool symtab_stripped = false;
   bool debug_info_had_variable_errors = false;
   bool debug_info_had_incomplete_types = false;
-  uint32_t dwo_file_count = 0;
-  uint32_t loaded_dwo_file_count = 0;
-  uint32_t dwo_error_count = 0;
+  SymbolFile::DWOStats dwo_stats;
 };
 
 struct ConstStringStats {
diff --git a/lldb/source/Target/Statistics.cpp 
b/lldb/source/Target/Statistics.cpp
index 0dab6aa0b7861..b0e2257705b5e 100644
--- a/lldb/source/Target/Statistics.cpp
+++ b/lldb/source/Target/Statistics.cpp
@@ -73,9 +73,9 @@ json::Value ModuleStats::ToJSON() const {
                      debug_info_had_incomplete_types);
   module.try_emplace("symbolTableStripped", symtab_stripped);
   module.try_emplace("symbolTableSymbolCount", symtab_symbol_count);
-  module.try_emplace("dwoFileCount", dwo_file_count);
-  module.try_emplace("loadedDwoFileCount", loaded_dwo_file_count);
-  module.try_emplace("dwoErrorCount", dwo_error_count);
+  module.try_emplace("dwoFileCount", dwo_stats.dwo_file_count);
+  module.try_emplace("loadedDwoFileCount", dwo_stats.loaded_dwo_file_count);
+  module.try_emplace("dwoErrorCount", dwo_stats.dwo_error_count);
 
   if (!symbol_locator_time.map.empty()) {
     json::Object obj;
@@ -325,9 +325,7 @@ llvm::json::Value DebuggerStats::ReportStatistics(
   uint32_t num_modules_with_incomplete_types = 0;
   uint32_t num_stripped_modules = 0;
   uint32_t symtab_symbol_count = 0;
-  uint32_t total_loaded_dwo_file_count = 0;
-  uint32_t total_dwo_file_count = 0;
-  uint32_t total_dwo_error_count = 0;
+  SymbolFile::DWOStats total_dwo_stats;
   for (size_t image_idx = 0; image_idx < num_modules; ++image_idx) {
     Module *module = target != nullptr
                          ? 
target->GetImages().GetModuleAtIndex(image_idx).get()
@@ -360,13 +358,8 @@ llvm::json::Value DebuggerStats::ReportStatistics(
           module_stat.symfile_modules.push_back((intptr_t)symbol_module.get());
       }
       SymbolFile::DWOStats current_dwo_stats = sym_file->GetDwoStats();
-      module_stat.loaded_dwo_file_count +=
-          current_dwo_stats.loaded_dwo_file_count;
-      module_stat.dwo_file_count += current_dwo_stats.dwo_file_count;
-      module_stat.dwo_error_count += current_dwo_stats.dwo_error_count;
-      total_dwo_file_count += current_dwo_stats.dwo_file_count;
-      total_loaded_dwo_file_count += current_dwo_stats.loaded_dwo_file_count;
-      total_dwo_error_count += current_dwo_stats.dwo_error_count;
+      module_stat.dwo_stats += current_dwo_stats;
+      total_dwo_stats += current_dwo_stats;
       module_stat.debug_info_index_loaded_from_cache =
           sym_file->GetDebugInfoIndexWasLoadedFromCache();
       if (module_stat.debug_info_index_loaded_from_cache)
@@ -441,9 +434,9 @@ llvm::json::Value DebuggerStats::ReportStatistics(
       {"totalDebugInfoEnabled", num_debug_info_enabled_modules},
       {"totalSymbolTableStripped", num_stripped_modules},
       {"totalSymbolTableSymbolCount", symtab_symbol_count},
-      {"totalLoadedDwoFileCount", total_loaded_dwo_file_count},
-      {"totalDwoFileCount", total_dwo_file_count},
-      {"totalDwoErrorCount", total_dwo_error_count},
+      {"totalLoadedDwoFileCount", total_dwo_stats.loaded_dwo_file_count},
+      {"totalDwoFileCount", total_dwo_stats.dwo_file_count},
+      {"totalDwoErrorCount", total_dwo_stats.dwo_error_count},
   };
 
   if (include_targets) {

>From ec5dabd0a75ab86264b31dc40d049ac776dc6906 Mon Sep 17 00:00:00 2001
From: Ziyi Wang <zw3...@nyu.edu>
Date: Thu, 28 Aug 2025 16:35:19 -0700
Subject: [PATCH 4/6] [lldb]Reuse DWOStats in statistics

---
 lldb/include/lldb/Symbol/SymbolFile.h             | 13 -------------
 lldb/include/lldb/Target/Statistics.h             | 15 ++++++++++++++-
 .../Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp  |  4 ++--
 lldb/source/Target/Statistics.cpp                 |  8 ++++----
 4 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/lldb/include/lldb/Symbol/SymbolFile.h 
b/lldb/include/lldb/Symbol/SymbolFile.h
index 671a2483783bf..68c6563e7f314 100644
--- a/lldb/include/lldb/Symbol/SymbolFile.h
+++ b/lldb/include/lldb/Symbol/SymbolFile.h
@@ -488,19 +488,6 @@ class SymbolFile : public PluginInterface {
     return false;
   };
 
-  /// Holds statistics about DWO (Debug With Object) files.
-  struct DWOStats {
-    uint32_t loaded_dwo_file_count = 0;
-    uint32_t dwo_file_count = 0;
-    uint32_t dwo_error_count = 0;
-
-    DWOStats operator+(const DWOStats &rhs) const {
-      return DWOStats{loaded_dwo_file_count + rhs.loaded_dwo_file_count,
-                      dwo_file_count + rhs.dwo_file_count,
-                      dwo_error_count + rhs.dwo_error_count};
-    }
-  };
-
   /// Retrieves statistics about DWO files associated with this symbol file.
   /// This function returns a DWOStats struct containing:
   ///   - The number of successfully loaded/parsed DWO files.
diff --git a/lldb/include/lldb/Target/Statistics.h 
b/lldb/include/lldb/Target/Statistics.h
index bf00dd3eb146d..fac825229ec36 100644
--- a/lldb/include/lldb/Target/Statistics.h
+++ b/lldb/include/lldb/Target/Statistics.h
@@ -124,6 +124,19 @@ struct StatsSuccessFail {
   uint32_t failures = 0;
 };
 
+/// Holds statistics about DWO (Debug With Object) files.
+struct DWOStats {
+  uint32_t loaded_dwo_file_count = 0;
+  uint32_t dwo_file_count = 0;
+  uint32_t dwo_error_count = 0;
+
+  DWOStats operator+(const DWOStats &rhs) const {
+    return DWOStats{loaded_dwo_file_count + rhs.loaded_dwo_file_count,
+                    dwo_file_count + rhs.dwo_file_count,
+                    dwo_error_count + rhs.dwo_error_count};
+  }
+};
+
 /// A class that represents statistics for a since lldb_private::Module.
 struct ModuleStats {
   llvm::json::Value ToJSON() const;
@@ -154,7 +167,7 @@ struct ModuleStats {
   bool symtab_stripped = false;
   bool debug_info_had_variable_errors = false;
   bool debug_info_had_incomplete_types = false;
-  SymbolFile::DWOStats dwo_stats;
+  DWOStats dwo_stats;
 };
 
 struct ConstStringStats {
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp 
b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
index e41dfdf190697..6f395b5a98afe 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -4503,8 +4503,8 @@ void SymbolFileDWARF::GetCompileOptions(
   }
 }
 
-SymbolFile::DWOStats SymbolFileDWARF::GetDwoStats() {
-  SymbolFile::DWOStats stats;
+DWOStats SymbolFileDWARF::GetDwoStats() {
+  DWOStats stats;
 
   DWARFDebugInfo &info = DebugInfo();
   const size_t num_cus = info.GetNumUnits();
diff --git a/lldb/source/Target/Statistics.cpp 
b/lldb/source/Target/Statistics.cpp
index b0e2257705b5e..3c16df5440f25 100644
--- a/lldb/source/Target/Statistics.cpp
+++ b/lldb/source/Target/Statistics.cpp
@@ -325,7 +325,7 @@ llvm::json::Value DebuggerStats::ReportStatistics(
   uint32_t num_modules_with_incomplete_types = 0;
   uint32_t num_stripped_modules = 0;
   uint32_t symtab_symbol_count = 0;
-  SymbolFile::DWOStats total_dwo_stats;
+  DWOStats total_dwo_stats;
   for (size_t image_idx = 0; image_idx < num_modules; ++image_idx) {
     Module *module = target != nullptr
                          ? 
target->GetImages().GetModuleAtIndex(image_idx).get()
@@ -357,9 +357,9 @@ llvm::json::Value DebuggerStats::ReportStatistics(
         for (const auto &symbol_module : symbol_modules.Modules())
           module_stat.symfile_modules.push_back((intptr_t)symbol_module.get());
       }
-      SymbolFile::DWOStats current_dwo_stats = sym_file->GetDwoStats();
-      module_stat.dwo_stats += current_dwo_stats;
-      total_dwo_stats += current_dwo_stats;
+      DWOStats current_dwo_stats = sym_file->GetDwoStats();
+      module_stat.dwo_stats = module_stat.dwo_stats + current_dwo_stats;
+      total_dwo_stats = total_dwo_stats + current_dwo_stats;
       module_stat.debug_info_index_loaded_from_cache =
           sym_file->GetDebugInfoIndexWasLoadedFromCache();
       if (module_stat.debug_info_index_loaded_from_cache)

>From 76850ec9c1805bc52393fbe8fc6810dd9ae3afd8 Mon Sep 17 00:00:00 2001
From: Ziyi Wang <zw3...@nyu.edu>
Date: Thu, 28 Aug 2025 16:35:19 -0700
Subject: [PATCH 5/6] [lldb]Reuse DWOStats in statistics

---
 lldb/include/lldb/Target/Statistics.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lldb/include/lldb/Target/Statistics.h 
b/lldb/include/lldb/Target/Statistics.h
index fac825229ec36..c288917edbc6a 100644
--- a/lldb/include/lldb/Target/Statistics.h
+++ b/lldb/include/lldb/Target/Statistics.h
@@ -10,7 +10,6 @@
 #define LLDB_TARGET_STATISTICS_H
 
 #include "lldb/DataFormatters/TypeSummary.h"
-#include "lldb/Symbol/SymbolFile.h"
 #include "lldb/Utility/ConstString.h"
 #include "lldb/Utility/RealpathPrefixes.h"
 #include "lldb/Utility/Stream.h"

>From 3f866ad99a4163ef64a01c0566b8f246139c4749 Mon Sep 17 00:00:00 2001
From: Ziyi Wang <zw3...@nyu.edu>
Date: Mon, 1 Sep 2025 23:03:13 -0700
Subject: [PATCH 6/6] [format]Revert for auto-formatter

---
 lldb/include/lldb/Symbol/SymbolFile.h         | 40 +++++++++----------
 .../SymbolFile/DWARF/SymbolFileDWARF.cpp      |  7 ++--
 2 files changed, 23 insertions(+), 24 deletions(-)

diff --git a/lldb/include/lldb/Symbol/SymbolFile.h 
b/lldb/include/lldb/Symbol/SymbolFile.h
index 68c6563e7f314..ad35b1defb5c9 100644
--- a/lldb/include/lldb/Symbol/SymbolFile.h
+++ b/lldb/include/lldb/Symbol/SymbolFile.h
@@ -499,15 +499,14 @@ class SymbolFile : public PluginInterface {
   ///   A DWOStats struct with loaded, total, and error counts for DWO files.
   virtual DWOStats GetDwoStats() { return {}; }
 
-  virtual lldb::TypeSP MakeType(lldb::user_id_t uid, ConstString name,
-                                std::optional<uint64_t> byte_size,
-                                SymbolContextScope *context,
-                                lldb::user_id_t encoding_uid,
-                                Type::EncodingDataType encoding_uid_type,
-                                const Declaration &decl,
-                                const CompilerType &compiler_qual_type,
-                                Type::ResolveState compiler_type_resolve_state,
-                                uint32_t opaque_payload = 0) = 0;
+  virtual lldb::TypeSP
+  MakeType(lldb::user_id_t uid, ConstString name,
+           std::optional<uint64_t> byte_size, SymbolContextScope *context,
+           lldb::user_id_t encoding_uid,
+           Type::EncodingDataType encoding_uid_type, const Declaration &decl,
+           const CompilerType &compiler_qual_type,
+           Type::ResolveState compiler_type_resolve_state,
+           uint32_t opaque_payload = 0) = 0;
 
   virtual lldb::TypeSP CopyType(const lldb::TypeSP &other_type) = 0;
 
@@ -601,7 +600,7 @@ class SymbolFileCommon : public SymbolFile {
     return m_debug_info_had_variable_errors;
   }
   void SetDebugInfoHadFrameVariableErrors() override {
-    m_debug_info_had_variable_errors = true;
+     m_debug_info_had_variable_errors = true;
   }
 
   /// This function is used to create types that belong to a SymbolFile. The
@@ -616,20 +615,21 @@ class SymbolFileCommon : public SymbolFile {
                         const CompilerType &compiler_qual_type,
                         Type::ResolveState compiler_type_resolve_state,
                         uint32_t opaque_payload = 0) override {
-    lldb::TypeSP type_sp(new Type(
-        uid, this, name, byte_size, context, encoding_uid, encoding_uid_type,
-        decl, compiler_qual_type, compiler_type_resolve_state, 
opaque_payload));
-    m_type_list.Insert(type_sp);
-    return type_sp;
+     lldb::TypeSP type_sp (new Type(
+         uid, this, name, byte_size, context, encoding_uid,
+         encoding_uid_type, decl, compiler_qual_type,
+         compiler_type_resolve_state, opaque_payload));
+     m_type_list.Insert(type_sp);
+     return type_sp;
   }
 
   lldb::TypeSP CopyType(const lldb::TypeSP &other_type) override {
-    // Make sure the real symbol file matches when copying types.
-    if (GetBackingSymbolFile() != other_type->GetSymbolFile())
+     // Make sure the real symbol file matches when copying types.
+     if (GetBackingSymbolFile() != other_type->GetSymbolFile())
       return lldb::TypeSP();
-    lldb::TypeSP type_sp(new Type(*other_type));
-    m_type_list.Insert(type_sp);
-    return type_sp;
+     lldb::TypeSP type_sp(new Type(*other_type));
+     m_type_list.Insert(type_sp);
+     return type_sp;
   }
 
 protected:
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp 
b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
index 6f395b5a98afe..7108ac72eb030 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -90,7 +90,7 @@
 #include <cctype>
 #include <cstring>
 
-// #define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN
+//#define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN
 
 #ifdef ENABLE_DEBUG_PRINTF
 #include <cstdio>
@@ -1716,7 +1716,7 @@ SymbolFileDWARF 
*SymbolFileDWARF::GetDIERefSymbolFile(const DIERef &die_ref) {
     return this;
 
   if (file_index) {
-    // We have a SymbolFileDWARFDebugMap, so let it find the right file
+      // We have a SymbolFileDWARFDebugMap, so let it find the right file
     if (SymbolFileDWARFDebugMap *debug_map = GetDebugMapSymfile())
       return debug_map->GetSymbolFileByOSOIndex(*file_index);
 
@@ -1725,8 +1725,7 @@ SymbolFileDWARF 
*SymbolFileDWARF::GetDIERefSymbolFile(const DIERef &die_ref) {
       return GetDwpSymbolFile().get(); // DWP case
 
     // Handle the .dwo file case correctly
-    return DebugInfo()
-        .GetUnitAtIndex(*die_ref.file_index())
+    return DebugInfo().GetUnitAtIndex(*die_ref.file_index())
         ->GetDwoSymbolFile(); // DWO case
   }
   return this;

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