--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/Modules/requires.m	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,32 @@
+// RUN: rm -rf %t
+// RUN: %clang_cc1 -Wauto-import -Wno-private-module -fmodules-cache-path=%t -fmodules -fimplicit-module-maps -F %S/Inputs -I %S/Inputs %s -verify -fmodule-feature custom_req1
+// RUN: %clang_cc1 -Wauto-import -Wno-private-module -fmodules-cache-path=%t -fmodules -fimplicit-module-maps -F %S/Inputs -I %S/Inputs %s -verify -std=c89 -DTEST_C_FEATURES
+#ifndef TEST_C_FEATURES
+// expected-error@DependsOnModule.framework/module.map:7 {{module 'DependsOnModule.CXX' requires feature 'cplusplus'}}
+@import DependsOnModule.CXX; // expected-note {{module imported here}}
+@import DependsOnModule.NotCXX;
+// expected-error@DependsOnModule.framework/module.map:15 {{module 'DependsOnModule.NotObjC' is incompatible with feature 'objc'}}
+@import DependsOnModule.NotObjC; // expected-note {{module imported here}}
+@import DependsOnModule.CustomReq1; // OK
+// expected-error@DependsOnModule.framework/module.map:22 {{module 'DependsOnModule.CustomReq2' requires feature 'custom_req2'}}
+@import DependsOnModule.CustomReq2; // expected-note {{module imported here}}
+
+@import RequiresWithMissingHeader; // OK
+// expected-error@module.map:* {{module 'RequiresWithMissingHeader.HeaderBefore' requires feature 'missing'}}
+@import RequiresWithMissingHeader.HeaderBefore; // expected-note {{module imported here}}
+// expected-error@module.map:* {{module 'RequiresWithMissingHeader.HeaderAfter' requires feature 'missing'}}
+@import RequiresWithMissingHeader.HeaderAfter; // expected-note {{module imported here}}
+// expected-error@DependsOnModule.framework/module.map:40 {{module 'DependsOnModule.CXX11' requires feature 'cplusplus11'}}
+@import DependsOnModule.CXX11; // expected-note {{module imported here}}
+// expected-error@DependsOnModule.framework/module.map:43 {{module 'DependsOnModule.CXX14' requires feature 'cplusplus14'}}
+@import DependsOnModule.CXX14; // expected-note {{module imported here}}
+// expected-error@DependsOnModule.framework/module.map:46 {{module 'DependsOnModule.CXX17' requires feature 'cplusplus17'}}
+@import DependsOnModule.CXX17; // expected-note {{module imported here}}
+#else
+// expected-error@DependsOnModule.framework/module.map:49 {{module 'DependsOnModule.C99' requires feature 'c99'}}
+@import DependsOnModule.C99; // expected-note {{module imported here}}
+// expected-error@DependsOnModule.framework/module.map:52 {{module 'DependsOnModule.C11' requires feature 'c11'}}
+@import DependsOnModule.C11; // expected-note {{module imported here}}
+// expected-error@DependsOnModule.framework/module.map:55 {{module 'DependsOnModule.C17' requires feature 'c17'}}
+@import DependsOnModule.C17; // expected-note {{module imported here}}
+#endif