diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -1647,8 +1647,18 @@
 
   // Set the symbol type to function if the alias has a function type.
   // This affects codegen when the aliasee is not a function.
-  if (IsFunction)
+  if (IsFunction) {
     OutStreamer->emitSymbolAttribute(Name, MCSA_ELF_TypeFunction);
+    if (TM.getTargetTriple().isOSBinFormatCOFF()) {
+      OutStreamer->BeginCOFFSymbolDef(Name);
+      OutStreamer->EmitCOFFSymbolStorageClass(
+          GA.hasLocalLinkage() ? COFF::IMAGE_SYM_CLASS_STATIC
+                               : COFF::IMAGE_SYM_CLASS_EXTERNAL);
+      OutStreamer->EmitCOFFSymbolType(COFF::IMAGE_SYM_DTYPE_FUNCTION
+                                      << COFF::SCT_COMPLEX_TYPE_SHIFT);
+      OutStreamer->EndCOFFSymbolDef();
+    }
+  }
 
   emitVisibility(Name, GA.getVisibility());
 
diff --git a/llvm/test/CodeGen/X86/coff-alias-type.ll b/llvm/test/CodeGen/X86/coff-alias-type.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/X86/coff-alias-type.ll
@@ -0,0 +1,24 @@
+; RUN: llc -mtriple=x86_64-windows-gnu -o - %s | FileCheck %s
+
+%struct.MyStruct = type { i8 }
+
+@_ZN8MyStructC1Ev = dso_local alias void (%struct.MyStruct*), void (%struct.MyStruct*)* @_ZN8MyStructC2Ev
+
+define dso_local void @_ZN8MyStructC2Ev(%struct.MyStruct* %this) {
+entry:
+  ret void
+}
+
+; CHECK:      .def     _ZN8MyStructC2Ev
+; CHECK-NEXT: .scl     2
+; CHECK-NEXT: .type    32
+; CHECK-NEXT: .endef
+; CHECK-NEXT: .globl   _ZN8MyStructC2Ev
+; CHECK:      {{^}}_ZN8MyStructC2Ev:
+
+; CHECK:      .globl   _ZN8MyStructC1Ev
+; CHECK-NEXT: .def     _ZN8MyStructC1Ev
+; CHECK-NEXT: .scl     2
+; CHECK-NEXT: .type    32
+; CHECK-NEXT: .endef
+; CHECK-NEXT: .set     _ZN8MyStructC1Ev, _ZN8MyStructC2Ev