9diff --git lib/CodeGen/CGClass.cpp lib/CodeGen/CGClass.cpp
index 6303e20..131c807 100644
--- lib/CodeGen/CGClass.cpp
+++ lib/CodeGen/CGClass.cpp
@@ -714,7 +714,8 @@ void CodeGenFunction::EmitConstructorBody(FunctionArgList &Args) {

   // Before we go any further, try the complete->base constructor
   // delegation optimization.
-  if (CtorType == Ctor_Complete && IsConstructorDelegationValid(Ctor)) {
+  if (CtorType == Ctor_Complete && IsConstructorDelegationValid(Ctor) &&
+      CGM.getContext().getTargetInfo().getCXXABI() != CXXABI_Microsoft) {
     if (CGDebugInfo *DI = getDebugInfo())
       DI->EmitLocation(Builder, Ctor->getLocEnd());
     EmitDelegateCXXConstructorCall(Ctor, Ctor_Base, Args);
@@ -913,7 +914,7 @@ void CodeGenFunction::EmitDestructorBody(FunctionArgList &Args) {
     // Enter the cleanup scopes for virtual bases.
     EnterDtorCleanups(Dtor, Dtor_Complete);

-    if (!isTryBody) {
+    if (!isTryBody && CGM.getContext().getTargetInfo().getCXXABI() != CXXABI_Microsoft) {
       EmitCXXDestructorCall(Dtor, Dtor_Base, /*ForVirtualBase=*/false,
                             LoadCXXThis());
       break;
diff --git test/CodeGenCXX/microsoft-abi-smoke.cpp test/CodeGenCXX/microsoft-abi-smoke.cpp
new file mode 100644
index 0000000..6f465c7
--- /dev/null
+++ test/CodeGenCXX/microsoft-abi-smoke.cpp
@@ -0,0 +1,26 @@
+// RUN: %clang -Xclang -cxx-abi -Xclang microsoft -o %t.exe %s 2> %t.log
+// FIXME: in my environment, this fails to link due to empty LIB env.
+// RUN: %t.exe | FileCheck %s
+// FIXME: should XFAIL on non-Windows platforms
+
+extern "C" int printf(...);
+
+class A {
+ public:
+  A() { printf("ctor!\n"); }
+  ~A() { printf("dtor!\n"); }
+};
+
+int main() {
+  printf("before ctor\n");
+  // CHECK: before ctor
+  {
+    A a;
+    // CHECK: ctor!
+    printf("before dtor\n");
+    // CHECK: before dtor
+    // CHECK: dtor!
+  }
+  printf("after  dtor\n");
+  // CHECK: after  dtor
+}