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-rw-r--r--clang/test/Modules/Inputs/explicit-build-overlap/a.h1
-rw-r--r--clang/test/Modules/Inputs/explicit-build-overlap/b.h1
-rw-r--r--clang/test/Modules/Inputs/explicit-build-overlap/def.map2
-rw-r--r--clang/test/Modules/Inputs/explicit-build-overlap/use.map3
-rw-r--r--clang/test/Modules/explicit-build-overlap.cpp14
5 files changed, 21 insertions, 0 deletions
diff --git a/clang/test/Modules/Inputs/explicit-build-overlap/a.h b/clang/test/Modules/Inputs/explicit-build-overlap/a.h
new file mode 100644
index 00000000000..4c5cd949f23
--- /dev/null
+++ b/clang/test/Modules/Inputs/explicit-build-overlap/a.h
@@ -0,0 +1 @@
+struct A {};
diff --git a/clang/test/Modules/Inputs/explicit-build-overlap/b.h b/clang/test/Modules/Inputs/explicit-build-overlap/b.h
new file mode 100644
index 00000000000..c51edab1416
--- /dev/null
+++ b/clang/test/Modules/Inputs/explicit-build-overlap/b.h
@@ -0,0 +1 @@
+struct B {};
diff --git a/clang/test/Modules/Inputs/explicit-build-overlap/def.map b/clang/test/Modules/Inputs/explicit-build-overlap/def.map
new file mode 100644
index 00000000000..444faf7cb59
--- /dev/null
+++ b/clang/test/Modules/Inputs/explicit-build-overlap/def.map
@@ -0,0 +1,2 @@
+module a { textual header "a.h" }
+module b { header "a.h" header "b.h" }
diff --git a/clang/test/Modules/Inputs/explicit-build-overlap/use.map b/clang/test/Modules/Inputs/explicit-build-overlap/use.map
new file mode 100644
index 00000000000..456fbd06943
--- /dev/null
+++ b/clang/test/Modules/Inputs/explicit-build-overlap/use.map
@@ -0,0 +1,3 @@
+module "use" {
+ use a
+}
diff --git a/clang/test/Modules/explicit-build-overlap.cpp b/clang/test/Modules/explicit-build-overlap.cpp
new file mode 100644
index 00000000000..1966cce170e
--- /dev/null
+++ b/clang/test/Modules/explicit-build-overlap.cpp
@@ -0,0 +1,14 @@
+// RUN: rm -rf %t
+// RUN: %clang_cc1 -x c++ -fmodules %S/Inputs/explicit-build-overlap/def.map -fmodule-name=a -emit-module -o %t/a.pcm
+// RUN: %clang_cc1 -x c++ -fmodules %S/Inputs/explicit-build-overlap/def.map -fmodule-name=b -emit-module -o %t/ba.pcm -fmodule-file=%t/a.pcm
+// RUN: %clang_cc1 -x c++ -fmodules -fmodule-map-file=%S/Inputs/explicit-build-overlap/use.map -fmodule-name=use -fmodule-file=%t/ba.pcm %s -verify -I%S/Inputs/explicit-build-overlap -fmodules-decluse
+//
+// RUN: %clang_cc1 -x c++ -fmodules %S/Inputs/explicit-build-overlap/def.map -fmodule-name=b -emit-module -o %t/b.pcm
+// RUN: %clang_cc1 -x c++ -fmodules %S/Inputs/explicit-build-overlap/def.map -fmodule-name=a -emit-module -o %t/ab.pcm -fmodule-file=%t/b.pcm
+// RUN: %clang_cc1 -x c++ -fmodules -fmodule-map-file=%S/Inputs/explicit-build-overlap/use.map -fmodule-name=use -fmodule-file=%t/ab.pcm %s -verify -I%S/Inputs/explicit-build-overlap -fmodules-decluse
+
+// expected-no-diagnostics
+#include "a.h"
+
+A a;
+B b;
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