1 files changed, 54 insertions, 0 deletions
diff --git a/src/test/codegen/dllimports/main.rs b/src/test/codegen/dllimports/main.rs
new file mode 100644
index 000000000..bb3134e81
--- /dev/null
+++ b/src/test/codegen/dllimports/main.rs
@@ -0,0 +1,54 @@
+// This test is for *-windows-msvc only.
+// ignore-android
+// ignore-dragonfly
+// ignore-emscripten
+// ignore-freebsd
+// ignore-gnu
+// ignore-haiku
+// ignore-ios
+// ignore-linux
+// ignore-macos
+// ignore-netbsd
+// ignore-openbsd
+// ignore-solaris
+// ignore-sgx no dynamic linking
+
+// aux-build:dummy.rs
+// aux-build:wrapper.rs
+
+extern crate wrapper;
+
+// Check that external symbols coming from foreign dylibs are adorned with 'dllimport',
+// whereas symbols coming from foreign staticlibs are not. (RFC-1717)
+
+// CHECK: @dylib_global1 = external dllimport local_unnamed_addr global i32
+// CHECK: @dylib_global2 = external dllimport local_unnamed_addr global i32
+// CHECK: @static_global1 = external local_unnamed_addr global i32
+// CHECK: @static_global2 = external local_unnamed_addr global i32
+
+// CHECK: declare dllimport i32 @dylib_func1(i32)
+// CHECK: declare dllimport i32 @dylib_func2(i32)
+// CHECK: declare i32 @static_func1(i32)
+// CHECK: declare i32 @static_func2(i32)
+
+#[link(name = "dummy", kind="dylib")]
+extern "C" {
+    pub fn dylib_func1(x: i32) -> i32;
+    pub static dylib_global1: i32;
+}
+
+#[link(name = "dummy", kind="static")]
+extern "C" {
+    pub fn static_func1(x: i32) -> i32;
+    pub static static_global1: i32;
+}
+
+fn main() {
+    unsafe {
+        dylib_func1(dylib_global1);
+        wrapper::dylib_func2(wrapper::dylib_global2);
+
+        static_func1(static_global1);
+        wrapper::static_func2(wrapper::static_global2);
+    }
+}