Index: include/llvm/DebugInfo/DWARF/DWARFDebugAranges.h
===================================================================
--- include/llvm/DebugInfo/DWARF/DWARFDebugAranges.h
+++ include/llvm/DebugInfo/DWARF/DWARFDebugAranges.h
@@ -10,7 +10,6 @@
 #ifndef LLVM_DEBUGINFO_DWARFDEBUGARANGES_H
 #define LLVM_DEBUGINFO_DWARFDEBUGARANGES_H
 
-#include "llvm/ADT/DenseSet.h"
 #include "llvm/Support/DataExtractor.h"
 #include <cstdint>
 #include <vector>
@@ -81,7 +80,6 @@
 
   std::vector<RangeEndpoint> Endpoints;
   RangeColl Aranges;
-  DenseSet<uint32_t> ParsedCUOffsets;
 };
 
 } // end namespace llvm
Index: lib/DebugInfo/DWARF/DWARFDebugAranges.cpp
===================================================================
--- lib/DebugInfo/DWARF/DWARFDebugAranges.cpp
+++ lib/DebugInfo/DWARF/DWARFDebugAranges.cpp
@@ -33,7 +33,6 @@
       uint64_t HighPC = Desc.getEndAddress();
       appendRange(CUOffset, LowPC, HighPC);
     }
-    ParsedCUOffsets.insert(CUOffset);
   }
 }
 
@@ -52,12 +51,10 @@
   // manually build aranges for the rest of them.
   for (const auto &CU : CTX->compile_units()) {
     uint32_t CUOffset = CU->getOffset();
-    if (ParsedCUOffsets.insert(CUOffset).second) {
-      DWARFAddressRangesVector CURanges;
-      CU->collectAddressRanges(CURanges);
-      for (const auto &R : CURanges)
-        appendRange(CUOffset, R.LowPC, R.HighPC);
-    }
+    DWARFAddressRangesVector CURanges;
+    CU->collectAddressRanges(CURanges);
+    for (const auto &R : CURanges)
+      appendRange(CUOffset, R.LowPC, R.HighPC);
   }
 
   construct();
@@ -66,7 +63,6 @@
 void DWARFDebugAranges::clear() {
   Endpoints.clear();
   Aranges.clear();
-  ParsedCUOffsets.clear();
 }
 
 void DWARFDebugAranges::appendRange(uint32_t CUOffset, uint64_t LowPC,
Index: lib/DebugInfo/DWARF/DWARFVerifier.cpp
===================================================================
--- lib/DebugInfo/DWARF/DWARFVerifier.cpp
+++ lib/DebugInfo/DWARF/DWARFVerifier.cpp
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "SyntaxHighlighting.h"
+#include "llvm/ADT/DenseSet.h"
 #include "llvm/DebugInfo/DWARF/DWARFVerifier.h"
 #include "llvm/DebugInfo/DWARF/DWARFCompileUnit.h"
 #include "llvm/DebugInfo/DWARF/DWARFContext.h"
Index: tools/llvm-dwarfdump/Statistics.cpp
===================================================================
--- tools/llvm-dwarfdump/Statistics.cpp
+++ tools/llvm-dwarfdump/Statistics.cpp
@@ -1,4 +1,5 @@
 #include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/DenseSet.h"
 #include "llvm/DebugInfo/DIContext.h"
 #include "llvm/DebugInfo/DWARF/DWARFContext.h"
 #include "llvm/DebugInfo/DWARF/DWARFDebugLoc.h"