Index: test/tools/llvm-readobj/stack-sizes.test
===================================================================
--- test/tools/llvm-readobj/stack-sizes.test
+++ test/tools/llvm-readobj/stack-sizes.test
@@ -303,6 +303,9 @@
 # RUN: llvm-readobj --stack-sizes %t07 2> %t07-llvm.err | FileCheck %s --check-prefix=BADSECTION-OUT-LLVM
 # RUN: FileCheck %s < %t07-llvm.err --check-prefix=BADSECTION-ERR -DFILE=%t07
 
+# RUN: llvm-readelf --stack-sizes --demangle %t07 2>&1 | FileCheck %s --check-prefix=BADSECTION-DEMANGLE-ERR -DFILE=%t07
+# RUN: llvm-readobj --stack-sizes --demangle %t07 2>&1 | FileCheck %s --check-prefix=BADSECTION-DEMANGLE-ERR -DFILE=%t07
+
 # BADSECTION-OUT-GNU: Size Function
 # BADSECTION-OUT-GNU:    8 ?
 
@@ -313,7 +316,8 @@
 # BADSECTION-OUT-LLVM-NEXT:   }
 # BADSECTION-OUT-LLVM-NEXT: ]
 
-# BADSECTION-ERR: warning: '[[FILE]]': cannot identify the section for relocation symbol foo
+# BADSECTION-ERR: warning: '[[FILE]]': cannot identify the section for relocation symbol _Z3foof
+# BADSECTION-DEMANGLE-ERR: warning: '[[FILE]]': cannot identify the section for relocation symbol foo(float)
 
 --- !ELF
 FileHeader:
@@ -334,10 +338,10 @@
     Info:    .stack_sizes
     Relocations:
     - Offset: 0
-      Symbol: foo 
+      Symbol: _Z3foof
       Type:   R_X86_64_64
 Symbols:
-  - Name:    foo
+  - Name:    _Z3foof
 ## An invalid section index.
     Index:   10
     Type:    STT_FUNC
Index: tools/llvm-readobj/ELFDumper.cpp
===================================================================
--- tools/llvm-readobj/ELFDumper.cpp
+++ tools/llvm-readobj/ELFDumper.cpp
@@ -4688,6 +4688,26 @@
   OS << "printELFLinkerOptions not implemented!\n";
 }
 
+// Used for printing section names in places where possible errors can be
+// ignored.
+static StringRef getSectionName(const SectionRef &Sec) {
+  Expected<StringRef> NameOrErr = Sec.getName();
+  if (NameOrErr)
+    return *NameOrErr;
+  consumeError(NameOrErr.takeError());
+  return "<?>";
+}
+
+// Used for printing symbol names in places where possible errors can be
+// ignored.
+static std::string getSymbolName(const ELFSymbolRef &Sym) {
+  Expected<StringRef> NameOrErr = Sym.getName();
+  if (NameOrErr)
+    return maybeDemangle(*NameOrErr);
+  consumeError(NameOrErr.takeError());
+  return "<?>";
+}
+
 template <class ELFT>
 void DumpStyle<ELFT>::printFunctionStackSize(
     const ELFObjectFile<ELFT> *Obj, uint64_t SymValue, SectionRef FunctionSec,
@@ -4712,18 +4732,12 @@
 
   std::string FuncName = "?";
   // A valid SymbolRef has a non-null object file pointer.
-  if (FuncSym.BasicSymbolRef::getObject()) {
-    // Extract the symbol name.
-    Expected<StringRef> FuncNameOrErr = FuncSym.getName();
-    if (FuncNameOrErr)
-      FuncName = maybeDemangle(*FuncNameOrErr);
-    else
-      consumeError(FuncNameOrErr.takeError());
-  } else {
+  if (FuncSym.BasicSymbolRef::getObject())
+    FuncName = getSymbolName(FuncSym);
+  else
     reportWarning(
         createError("could not identify function symbol for stack size entry"),
         Obj->getFileName());
-  }
 
   // Extract the size. The expectation is that Offset is pointing to the right
   // place, i.e. past the function address.
@@ -4765,22 +4779,16 @@
     // Ensure that the relocation symbol is in the function section, i.e. the
     // section where the functions whose stack sizes we are reporting are
     // located.
-    StringRef SymName = "?";
-    Expected<StringRef> NameOrErr = RelocSym->getName();
-    if (NameOrErr)
-      SymName = *NameOrErr;
-    else
-      consumeError(NameOrErr.takeError());
-
     auto SectionOrErr = RelocSym->getSection();
     if (!SectionOrErr) {
       reportWarning(
           createError("cannot identify the section for relocation symbol " +
-                      SymName),
+                      getSymbolName(*RelocSym)),
           FileStr);
       consumeError(SectionOrErr.takeError());
     } else if (*SectionOrErr != FunctionSec) {
-      reportWarning(createError("relocation symbol " + SymName +
+      reportWarning(createError("relocation symbol " +
+                                getSymbolName(*RelocSym) +
                                 " is not in the expected section"),
                     FileStr);
       // Pretend that the symbol is in the correct section and report its
@@ -4810,16 +4818,6 @@
                                Data, &Offset);
 }
 
-// Used for printing section names in places where possible errors can be
-// ignored.
-static StringRef getSectionName(const SectionRef &Sec) {
-  Expected<StringRef> NameOrErr = Sec.getName();
-  if (NameOrErr)
-    return *NameOrErr;
-  consumeError(NameOrErr.takeError());
-  return "<?>";
-}
-
 template <class ELFT>
 void DumpStyle<ELFT>::printNonRelocatableStackSizes(
     const ELFObjectFile<ELFT> *Obj, std::function<void()> PrintHeader) {