diff --git a/llvm/include/llvm/Object/COFF.h b/llvm/include/llvm/Object/COFF.h
--- a/llvm/include/llvm/Object/COFF.h
+++ b/llvm/include/llvm/Object/COFF.h
@@ -959,7 +959,7 @@
   bool isSectionData(DataRefImpl Sec) const override;
   bool isSectionBSS(DataRefImpl Sec) const override;
   bool isSectionVirtual(DataRefImpl Sec) const override;
-  bool isDebugSection(StringRef SectionName) const override;
+  bool isDebugSection(DataRefImpl Sec) const override;
   relocation_iterator section_rel_begin(DataRefImpl Sec) const override;
   relocation_iterator section_rel_end(DataRefImpl Sec) const override;
 
diff --git a/llvm/include/llvm/Object/ELFObjectFile.h b/llvm/include/llvm/Object/ELFObjectFile.h
--- a/llvm/include/llvm/Object/ELFObjectFile.h
+++ b/llvm/include/llvm/Object/ELFObjectFile.h
@@ -289,7 +289,7 @@
   bool isSectionVirtual(DataRefImpl Sec) const override;
   bool isBerkeleyText(DataRefImpl Sec) const override;
   bool isBerkeleyData(DataRefImpl Sec) const override;
-  bool isDebugSection(StringRef SectionName) const override;
+  bool isDebugSection(DataRefImpl Sec) const override;
   relocation_iterator section_rel_begin(DataRefImpl Sec) const override;
   relocation_iterator section_rel_end(DataRefImpl Sec) const override;
   std::vector<SectionRef> dynamic_relocation_sections() const override;
@@ -928,9 +928,13 @@
 }
 
 template <class ELFT>
-bool ELFObjectFile<ELFT>::isDebugSection(StringRef SectionName) const {
-  return SectionName.startswith(".debug") ||
-         SectionName.startswith(".zdebug") || SectionName == ".gdb_index";
+bool ELFObjectFile<ELFT>::isDebugSection(DataRefImpl Sec) const {
+  if (Expected<StringRef> SectionNameOrErr = getSectionName(Sec)) {
+    StringRef SectionName = SectionNameOrErr.get();
+    return SectionName.startswith(".debug") ||
+           SectionName.startswith(".zdebug") || SectionName == ".gdb_index";
+  }
+  return false;
 }
 
 template <class ELFT>
diff --git a/llvm/include/llvm/Object/MachO.h b/llvm/include/llvm/Object/MachO.h
--- a/llvm/include/llvm/Object/MachO.h
+++ b/llvm/include/llvm/Object/MachO.h
@@ -309,7 +309,7 @@
   bool isSectionBSS(DataRefImpl Sec) const override;
   bool isSectionVirtual(DataRefImpl Sec) const override;
   bool isSectionBitcode(DataRefImpl Sec) const override;
-  bool isDebugSection(StringRef SectionName) const override;
+  bool isDebugSection(DataRefImpl Sec) const override;
 
   /// When dsymutil generates the companion file, it strips all unnecessary
   /// sections (e.g. everything in the _TEXT segment) by omitting their body
diff --git a/llvm/include/llvm/Object/ObjectFile.h b/llvm/include/llvm/Object/ObjectFile.h
--- a/llvm/include/llvm/Object/ObjectFile.h
+++ b/llvm/include/llvm/Object/ObjectFile.h
@@ -123,7 +123,7 @@
   bool isBerkeleyData() const;
 
   /// Whether this section is a debug section.
-  bool isDebugSection(StringRef SectionName) const;
+  bool isDebugSection() const;
 
   bool containsSymbol(SymbolRef S) const;
 
@@ -274,7 +274,7 @@
   virtual bool isSectionStripped(DataRefImpl Sec) const;
   virtual bool isBerkeleyText(DataRefImpl Sec) const;
   virtual bool isBerkeleyData(DataRefImpl Sec) const;
-  virtual bool isDebugSection(StringRef SectionName) const;
+  virtual bool isDebugSection(DataRefImpl Sec) const;
   virtual relocation_iterator section_rel_begin(DataRefImpl Sec) const = 0;
   virtual relocation_iterator section_rel_end(DataRefImpl Sec) const = 0;
   virtual Expected<section_iterator> getRelocatedSection(DataRefImpl Sec) const;
@@ -504,8 +504,8 @@
   return OwningObject->isBerkeleyData(SectionPimpl);
 }
 
-inline bool SectionRef::isDebugSection(StringRef SectionName) const {
-  return OwningObject->isDebugSection(SectionName);
+inline bool SectionRef::isDebugSection() const {
+  return OwningObject->isDebugSection(SectionPimpl);
 }
 
 inline relocation_iterator SectionRef::relocation_begin() const {
diff --git a/llvm/include/llvm/Object/XCOFFObjectFile.h b/llvm/include/llvm/Object/XCOFFObjectFile.h
--- a/llvm/include/llvm/Object/XCOFFObjectFile.h
+++ b/llvm/include/llvm/Object/XCOFFObjectFile.h
@@ -338,6 +338,7 @@
   bool isSectionText(DataRefImpl Sec) const override;
   bool isSectionData(DataRefImpl Sec) const override;
   bool isSectionBSS(DataRefImpl Sec) const override;
+  bool isDebugSection(DataRefImpl Sec) const override;
 
   bool isSectionVirtual(DataRefImpl Sec) const override;
   relocation_iterator section_rel_begin(DataRefImpl Sec) const override;
diff --git a/llvm/lib/Object/COFFObjectFile.cpp b/llvm/lib/Object/COFFObjectFile.cpp
--- a/llvm/lib/Object/COFFObjectFile.cpp
+++ b/llvm/lib/Object/COFFObjectFile.cpp
@@ -328,8 +328,12 @@
 
 // The .debug sections are the only debug sections for COFF
 // (\see MCObjectFileInfo.cpp).
-bool COFFObjectFile::isDebugSection(StringRef SectionName) const {
-  return SectionName.startswith(".debug");
+bool COFFObjectFile::isDebugSection(DataRefImpl Ref) const {
+  if (Expected<StringRef> SectionNameOrErr = getSectionName(Ref)) {
+    StringRef SectionName = SectionNameOrErr.get();
+    return SectionName.startswith(".debug");
+  }
+  return false;
 }
 
 unsigned COFFObjectFile::getSectionID(SectionRef Sec) const {
diff --git a/llvm/lib/Object/MachOObjectFile.cpp b/llvm/lib/Object/MachOObjectFile.cpp
--- a/llvm/lib/Object/MachOObjectFile.cpp
+++ b/llvm/lib/Object/MachOObjectFile.cpp
@@ -2035,11 +2035,15 @@
           SectionType == MachO::S_GB_ZEROFILL);
 }
 
-bool MachOObjectFile::isDebugSection(StringRef SectionName) const {
-  return SectionName.startswith("__debug") ||
-         SectionName.startswith("__zdebug") ||
-         SectionName.startswith("__apple") || SectionName == "__gdb_index" ||
-         SectionName == "__swift_ast";
+bool MachOObjectFile::isDebugSection(DataRefImpl Sec) const {
+  if (Expected<StringRef> SectionNameOrErr = getSectionName(Sec)) {
+    StringRef SectionName = SectionNameOrErr.get();
+    return SectionName.startswith("__debug") ||
+           SectionName.startswith("__zdebug") ||
+           SectionName.startswith("__apple") || SectionName == "__gdb_index" ||
+           SectionName == "__swift_ast";
+  }
+  return false;
 }
 
 unsigned MachOObjectFile::getSectionID(SectionRef Sec) const {
diff --git a/llvm/lib/Object/ObjectFile.cpp b/llvm/lib/Object/ObjectFile.cpp
--- a/llvm/lib/Object/ObjectFile.cpp
+++ b/llvm/lib/Object/ObjectFile.cpp
@@ -94,7 +94,7 @@
   return isSectionData(Sec);
 }
 
-bool ObjectFile::isDebugSection(StringRef SectionName) const {
+bool ObjectFile::isDebugSection(DataRefImpl Sec) const {
   return false;
 }
 
diff --git a/llvm/lib/Object/XCOFFObjectFile.cpp b/llvm/lib/Object/XCOFFObjectFile.cpp
--- a/llvm/lib/Object/XCOFFObjectFile.cpp
+++ b/llvm/lib/Object/XCOFFObjectFile.cpp
@@ -304,6 +304,11 @@
   return Flags & (XCOFF::STYP_BSS | XCOFF::STYP_TBSS);
 }
 
+bool XCOFFObjectFile::isDebugSection(DataRefImpl Sec) const {
+  uint32_t Flags = getSectionFlags(Sec);
+  return Flags & (XCOFF::STYP_DEBUG | XCOFF::STYP_DWARF);
+}
+
 bool XCOFFObjectFile::isSectionVirtual(DataRefImpl Sec) const {
   return is64Bit() ? toSection64(Sec)->FileOffsetToRawData == 0
                    : toSection32(Sec)->FileOffsetToRawData == 0;
diff --git a/llvm/tools/llvm-dwarfdump/SectionSizes.cpp b/llvm/tools/llvm-dwarfdump/SectionSizes.cpp
--- a/llvm/tools/llvm-dwarfdump/SectionSizes.cpp
+++ b/llvm/tools/llvm-dwarfdump/SectionSizes.cpp
@@ -93,7 +93,7 @@
     LLVM_DEBUG(dbgs() << SectionName.str() << ": " << Section.getSize()
                       << '\n');
 
-    if (!Section.isDebugSection(SectionName))
+    if (!Section.isDebugSection())
       continue;
 
     Sizes.TotalDebugSectionsSize += Section.getSize();