7 files changed, 79 insertions, 0 deletions
diff --git a/clang/test/Modules/Inputs/stress1/common.h b/clang/test/Modules/Inputs/stress1/common.h
new file mode 100644
index 00000000000..d2fff1098d9
--- /dev/null
+++ b/clang/test/Modules/Inputs/stress1/common.h
@@ -0,0 +1,38 @@
+#ifndef STRESS1_COMMON_H
+#define STRESS1_COMMON_H
+
+inline char function00(char x) { return x + x; }
+inline short function00(short x) { return x + x; }
+inline int function00(int x) { return x + x; }
+
+namespace N00 {
+struct S00 {
+  char c;
+  short s;
+  int i;
+
+  S00(char x) : c(x) {}
+  S00(short x) : s(x) {}
+  S00(int x) : i(x) {}
+
+  char method00(char x) { return x + x; }
+  short method00(short x) { return x + x; }
+  int method00(int x) { return x + x; }
+
+  operator char() { return c; }
+  operator short() { return s; }
+  operator int() { return i; }
+};
+struct S01 {};
+struct S03 {};
+}
+
+namespace N01 {
+struct S00 : N00::S00 {
+  using N00::S00::S00;
+};
+struct S01 {};
+struct S02 {};
+}
+
+#endif
diff --git a/clang/test/Modules/Inputs/stress1/m00.h b/clang/test/Modules/Inputs/stress1/m00.h
new file mode 100644
index 00000000000..ca5af38f58c
--- /dev/null
+++ b/clang/test/Modules/Inputs/stress1/m00.h
@@ -0,0 +1,6 @@
+#ifndef STRESS1_M00_H
+#define STRESS1_M00_H
+
+#include "common.h"
+
+#endif
diff --git a/clang/test/Modules/Inputs/stress1/m01.h b/clang/test/Modules/Inputs/stress1/m01.h
new file mode 100644
index 00000000000..d0b150a7382
--- /dev/null
+++ b/clang/test/Modules/Inputs/stress1/m01.h
@@ -0,0 +1,6 @@
+#ifndef STRESS1_M01_H
+#define STRESS1_M01_H
+
+#include "common.h"
+
+#endif
diff --git a/clang/test/Modules/Inputs/stress1/m02.h b/clang/test/Modules/Inputs/stress1/m02.h
new file mode 100644
index 00000000000..bb9714ff747
--- /dev/null
+++ b/clang/test/Modules/Inputs/stress1/m02.h
@@ -0,0 +1,6 @@
+#ifndef STRESS1_M02_H
+#define STRESS1_M02_H
+
+#include "common.h"
+
+#endif
diff --git a/clang/test/Modules/Inputs/stress1/m03.h b/clang/test/Modules/Inputs/stress1/m03.h
new file mode 100644
index 00000000000..b6dbb68ccd5
--- /dev/null
+++ b/clang/test/Modules/Inputs/stress1/m03.h
@@ -0,0 +1,6 @@
+#ifndef STRESS1_M03_H
+#define STRESS1_M03_H
+
+#include "common.h"
+
+#endif
diff --git a/clang/test/Modules/Inputs/stress1/merge00.h b/clang/test/Modules/Inputs/stress1/merge00.h
new file mode 100644
index 00000000000..c6dccdf5305
--- /dev/null
+++ b/clang/test/Modules/Inputs/stress1/merge00.h
@@ -0,0 +1,11 @@
+#ifndef STRESS1_MERGE00_H
+#define STRESS1_MERGE00_H
+
+#include "m00.h"
+#include "m01.h"
+#include "m02.h"
+#include "m03.h"
+
+inline int g() { return N00::S00('a').method00('b') + (int)N00::S00(42) + function00(42); }
+
+#endif
diff --git a/clang/test/Modules/Inputs/stress1/module.modulemap b/clang/test/Modules/Inputs/stress1/module.modulemap
new file mode 100644
index 00000000000..2b687b01521
--- /dev/null
+++ b/clang/test/Modules/Inputs/stress1/module.modulemap
@@ -0,0 +1,6 @@
+module m00 { header "Inputs/stress1/m00.h" export * }
+module m01 { header "Inputs/stress1/m01.h" export * }
+module m02 { header "Inputs/stress1/m02.h" export * }
+module m03 { header "Inputs/stress1/m03.h" export * }
+
+module merge00 { header "Inputs/stress1/merge00.h" export * }