1 files changed, 30 insertions, 0 deletions
diff --git a/clang/test/Modules/macros.c b/clang/test/Modules/macros.c
new file mode 100644
index 0000000..83e1c66
--- /dev/null
+++ b/clang/test/Modules/macros.c
@@ -0,0 +1,30 @@
+// RUN: rm -rf %t
+// RUN: %clang_cc1 -fmodules -x objective-c -emit-module -fmodule-cache-path %t -fmodule-name=macros %S/Inputs/module.map
+// RUN: %clang_cc1 -fmodules -x objective-c -verify -fmodule-cache-path %t %s
+// RUN: %clang_cc1 -E -fmodules -x objective-c -fmodule-cache-path %t %s | FileCheck -check-prefix CHECK-PREPROCESSED %s
+// FIXME: When we have a syntax for modules in C, use that.
+
+@__experimental_modules_import macros;
+
+#ifndef INTEGER
+#  error INTEGER macro should be visible
+#endif
+
+#ifdef FLOAT
+#  error FLOAT macro should not be visible
+#endif
+
+#ifdef MODULE
+#  error MODULE macro should not be visible
+#endif
+
+// CHECK-PREPROCESSED: double d
+double d;
+DOUBLE *dp = &d;
+
+#__public_macro WIBBLE // expected-error{{no macro named 'WIBBLE'}}
+
+void f() {
+  // CHECK-PREPROCESSED: int i = INTEGER;
+  int i = INTEGER; // the value was exported, the macro was not.
+}