Index: include/llvm/MC/MCSymbol.h
===================================================================
--- include/llvm/MC/MCSymbol.h
+++ include/llvm/MC/MCSymbol.h
@@ -221,7 +221,6 @@
 
   /// isUsed - Check if this is used.
   bool isUsed() const { return IsUsed; }
-  void setUsed(bool Value) const { IsUsed |= Value; }
 
   /// \brief Check if this symbol is redefinable.
   bool isRedefinable() const { return IsRedefinable; }
Index: lib/MC/WasmObjectWriter.cpp
===================================================================
--- lib/MC/WasmObjectWriter.cpp
+++ lib/MC/WasmObjectWriter.cpp
@@ -1190,6 +1190,7 @@
                  << S.isExternal() << " isTemporary=" << S.isTemporary()
                  << " isFunction=" << WS.isFunction()
                  << " isWeak=" << WS.isWeak()
+                 << " isUsed=" << WS.isUsed()
                  << " isHidden=" << WS.isHidden()
                  << " isVariable=" << WS.isVariable() << "\n");
 
Index: test/MC/WebAssembly/comdat.ll
===================================================================
--- test/MC/WebAssembly/comdat.ll
+++ test/MC/WebAssembly/comdat.ll
@@ -22,7 +22,46 @@
   ret i32 0
 }
 
-; CHECK:       - Type:            EXPORT
+; CHECK:      Sections:        
+; CHECK-NEXT:   - Type:            TYPE
+; CHECK-NEXT:     Signatures:      
+; CHECK-NEXT:       - Index:           0
+; CHECK-NEXT:         ReturnType:      I32
+; CHECK-NEXT:         ParamTypes:      
+; CHECK-NEXT:   - Type:            IMPORT
+; CHECK-NEXT:     Imports:         
+; CHECK-NEXT:       - Module:          env
+; CHECK-NEXT:         Field:           __linear_memory
+; CHECK-NEXT:         Kind:            MEMORY
+; CHECK-NEXT:         Memory:          
+; CHECK-NEXT:           Initial:         0x00000001
+; CHECK-NEXT:       - Module:          env
+; CHECK-NEXT:         Field:           __indirect_function_table
+; CHECK-NEXT:         Kind:            TABLE
+; CHECK-NEXT:         Table:           
+; CHECK-NEXT:           ElemType:        ANYFUNC
+; CHECK-NEXT:           Limits:          
+; CHECK-NEXT:             Initial:         0x00000000
+; CHECK-NEXT:       - Module:          env
+; CHECK-NEXT:         Field:           funcImport
+; CHECK-NEXT:         Kind:            FUNCTION
+; CHECK-NEXT:         SigIndex:        0
+; CHECK-NEXT:       - Module:          env
+; CHECK-NEXT:         Field:           sharedComdat
+; CHECK-NEXT:         Kind:            GLOBAL
+; CHECK-NEXT:         GlobalType:      I32
+; CHECK-NEXT:         GlobalMutable:   false
+; CHECK-NEXT:   - Type:            FUNCTION
+; CHECK-NEXT:     FunctionTypes:   [ 0, 0, 0 ]
+; CHECK-NEXT:   - Type:            GLOBAL
+; CHECK-NEXT:     Globals:         
+; CHECK-NEXT:       - Index:           1
+; CHECK-NEXT:         Type:            I32
+; CHECK-NEXT:         Mutable:         false
+; CHECK-NEXT:         InitExpr:        
+; CHECK-NEXT:           Opcode:          I32_CONST
+; CHECK-NEXT:           Value:           0
+; CHECK-NEXT:  - Type:            EXPORT
 ; CHECK-NEXT:    Exports:
 ; CHECK-NEXT:      - Name:            callImport
 ; CHECK-NEXT:        Kind:            FUNCTION