1 files changed, 26 insertions, 0 deletions
diff --git a/clang/test/Modules/pcm-with-errors.cpp b/clang/test/Modules/pcm-with-errors.cpp
new file mode 100644
index 0000000..1bbc386
--- /dev/null
+++ b/clang/test/Modules/pcm-with-errors.cpp
@@ -0,0 +1,26 @@
+// RUN: rm -rf %t
+// RUN: split-file %s %t
+// RUN: cd %t
+
+// RUN: %clang_cc1 -std=c++23 m.cppm -emit-module-interface -o m.pcm -fallow-pcm-with-compiler-errors -verify
+// RUN: %clang_cc1 -std=c++23 main.cpp -fmodule-file=m=m.pcm -verify -fallow-pcm-with-compiler-errors -verify
+
+// RUN: %clang_cc1 -std=c++23 m.cppm -fmodules-reduced-bmi -emit-module-interface -o m.pcm -fallow-pcm-with-compiler-errors -verify
+// RUN: %clang_cc1 -std=c++23 main.cpp -fmodule-file=m=m.pcm -verify -fallow-pcm-with-compiler-errors -verify
+
+//--- m.cppm
+export module m;
+
+export int f() {
+  return 0;
+}
+
+export struct Foo {
+  __Int bar; // expected-error {{unknown type name '__Int'}}
+};
+
+//--- main.cpp
+// expected-no-diagnostics
+import m; // ok
+
+static_assert(__is_same(decltype(f), int())); // ok