3 files changed, 20 insertions, 0 deletions
diff --git a/clang/test/Modules/Inputs/submodule-visibility/a.h b/clang/test/Modules/Inputs/submodule-visibility/a.h
index d8805c92f24..34ac6b2b2ea 100644
--- a/clang/test/Modules/Inputs/submodule-visibility/a.h
+++ b/clang/test/Modules/Inputs/submodule-visibility/a.h
@@ -1 +1,7 @@
 int n;
+
+#ifdef B
+#error B is defined
+#endif
+
+#define A
diff --git a/clang/test/Modules/Inputs/submodule-visibility/b.h b/clang/test/Modules/Inputs/submodule-visibility/b.h
index fa419c0c5c4..dae75bf3315 100644
--- a/clang/test/Modules/Inputs/submodule-visibility/b.h
+++ b/clang/test/Modules/Inputs/submodule-visibility/b.h
@@ -1 +1,7 @@
 int m = n;
+
+#if defined(A) && !defined(ALLOW_NAME_LEAKAGE)
+#error A is defined
+#endif
+
+#define B
diff --git a/clang/test/Modules/submodule-visibility.cpp b/clang/test/Modules/submodule-visibility.cpp
index 084f811f231..b2c5fc7ba19 100644
--- a/clang/test/Modules/submodule-visibility.cpp
+++ b/clang/test/Modules/submodule-visibility.cpp
@@ -20,3 +20,11 @@
 #endif
 
 int k = n + m; // OK, a and b are visible here.
+
+#ifndef A
+#error A is not defined
+#endif
+
+#ifndef B
+#error B is not defined
+#endif