diff --git a/clang/lib/CodeGen/MicrosoftCXXABI.cpp b/clang/lib/CodeGen/MicrosoftCXXABI.cpp
--- a/clang/lib/CodeGen/MicrosoftCXXABI.cpp
+++ b/clang/lib/CodeGen/MicrosoftCXXABI.cpp
@@ -2083,6 +2083,8 @@
   // Start defining the function.
   CGF.StartFunction(GlobalDecl(), FnInfo.getReturnType(), ThunkFn, FnInfo,
                     FunctionArgs, MD->getLocation(), SourceLocation());
+
+  ApplyDebugLocation AL(CGF, MD->getLocation());
   setCXXABIThisValue(CGF, loadIncomingCXXThis(CGF));
 
   // Load the vfptr and then callee from the vftable.  The callee should have
diff --git a/clang/test/CodeGenCXX/microsoft-abi-member-pointers-debug-info.cpp b/clang/test/CodeGenCXX/microsoft-abi-member-pointers-debug-info.cpp
new file mode 100644
--- /dev/null
+++ b/clang/test/CodeGenCXX/microsoft-abi-member-pointers-debug-info.cpp
@@ -0,0 +1,14 @@
+// RUN: %clang_cc1 -std=c++11 -debug-info-kind=line-tables-only -fno-rtti -emit-llvm %s -o - -triple=x86_64-pc-win32 -fms-extensions | FileCheck %s
+
+struct Task {
+  virtual void Run() = 0;
+};
+
+auto b = &Task::Run;
+
+// CHECK: define {{.*}}@"??_9Task@@$BA@AA"
+// CHECK-NOT: define
+// CHECK: musttail call {{.*}}, !dbg ![[DBG:[0-9]+]]
+
+// CHECK: ![[DBG]] = !DILocation(line: 4
+