1 files changed, 87 insertions, 0 deletions
diff --git a/test/Parser/ms-if-exists.c b/test/Parser/ms-if-exists.c
new file mode 100644
index 000000000000..7dd20544a6b4
--- /dev/null
+++ b/test/Parser/ms-if-exists.c
@@ -0,0 +1,87 @@
+// RUN: %clang_cc1 %s -fsyntax-only -Wmicrosoft -verify -fms-extensions
+// expected-no-diagnostics
+
+struct Type {
+};
+
+void test_if_exists_stmts() {
+  int b = 0;
+  __if_exists(Type) {
+    b++;
+    b++;
+  }
+  __if_exists(Type_not) {
+    this will not compile.
+  }
+  __if_not_exists(Type) {
+    this will not compile.
+  }
+  __if_not_exists(Type_not) {
+    b++;
+    b++;
+  }
+}
+
+int if_exists_creates_no_scope() {
+  __if_exists(Type) {
+    int x;  // 'x' is declared in the parent scope.
+  }
+  __if_not_exists(Type_not) {
+    x++;
+  }
+  return x;
+}
+
+__if_exists(Type) {
+  int var23;
+}
+
+__if_exists(Type_not) {
+  this will not compile.
+}
+
+__if_not_exists(Type) {
+  this will not compile.
+}
+
+__if_not_exists(Type_not) {
+  int var244;
+}
+
+void test_if_exists_init_list() {
+
+  int array1[] = {
+    0,
+    __if_exists(Type) {2, }
+    3
+  };
+
+  int array2[] = {
+    0,
+    __if_exists(Type_not) { this will not compile }
+    3
+  };
+
+  int array3[] = {
+    0,
+    __if_not_exists(Type_not) {2, }
+    3
+  };
+
+  int array4[] = {
+    0,
+    __if_not_exists(Type) { this will not compile }
+    3
+  };
+
+}
+
+
+void test_nested_if_exists() {
+  __if_exists(Type) {
+    int x = 42;
+    __if_not_exists(Type_not) {
+      x++;
+    }
+  }
+}