--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/Modules/Rmodule-import.m	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,46 @@
+// RUN: rm -rf %t1 %t2
+
+// Run with -verify, which onliy gets remarks from the main TU.
+//
+// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t1 \
+// RUN:     -fdisable-module-hash -fsyntax-only -I%S/Inputs/Rmodule-import \
+// RUN:     -Rmodule-build -Rmodule-import -verify %s
+
+// Run again, using FileCheck to check remarks from the module builds.
+//
+// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t2 \
+// RUN:     -fdisable-module-hash -fsyntax-only -I%S/Inputs/Rmodule-import \
+// RUN:     -Rmodule-build -Rmodule-import %s 2>&1 |\
+// RUN: FileCheck %s -implicit-check-not "remark:"
+
+#include "A.h" // \
+   expected-remark-re{{building module 'A' as '{{.*[/\\]}}A.pcm'}} \
+   expected-remark{{finished building module 'A'}} \
+   expected-remark-re{{importing module 'A' from '{{.*[/\\]}}A.pcm'}} \
+   expected-remark-re{{importing module 'B' into 'A' from '{{.*[/\\]}}B.pcm'}} \
+   expected-remark-re{{importing module 'C' into 'B' from '{{.*[/\\]}}C.pcm'}}
+// CHECK: remark: building module 'A'
+// CHECK: remark: building module 'B'
+// CHECK: remark: building module 'C'
+// CHECK: remark: finished building module 'C'
+// CHECK: remark: importing module 'C' from '{{.*[/\\]}}C.pcm'
+// CHECK: remark: finished building module 'B'
+// CHECK: remark: importing module 'B' from '{{.*[/\\]}}B.pcm'
+// CHECK: remark: importing module 'C' into 'B' from '{{.*[/\\]}}C.pcm'
+// CHECK: remark: finished building module 'A'
+// CHECK: remark: importing module 'A' from '{{.*[/\\]}}A.pcm'
+// CHECK: remark: importing module 'B' into 'A' from '{{.*[/\\]}}B.pcm'
+// CHECK: remark: importing module 'C' into 'B' from '{{.*[/\\]}}C.pcm'
+#include "B.h" // \
+   expected-remark-re{{importing module 'B' from '{{.*[/\\]}}B.pcm'}}
+// CHECK: remark: importing module 'B' from '{{.*[/\\]}}B.pcm'
+#include "C.h" // \
+   expected-remark-re{{importing module 'C' from '{{.*[/\\]}}C.pcm'}}
+// CHECK: remark: importing module 'C' from '{{.*[/\\]}}C.pcm'
+@import D; // \
+   expected-remark-re{{building module 'D' as '{{.*[/\\]}}D.pcm'}} \
+   expected-remark{{finished building module 'D'}} \
+   expected-remark-re{{importing module 'D' from '{{.*[/\\]}}D.pcm'}}
+// CHECK: remark: building module 'D'
+// CHECK: remark: finished building module 'D'
+// CHECK: remark: importing module 'D' from '{{.*[/\\]}}D.pcm'