1 files changed, 29 insertions, 0 deletions
diff --git a/tests/codegen/abi-x86_64_sysv.rs b/tests/codegen/abi-x86_64_sysv.rs
new file mode 100644
index 000000000..84e06023e
--- /dev/null
+++ b/tests/codegen/abi-x86_64_sysv.rs
@@ -0,0 +1,29 @@
+// only-x86_64
+
+// compile-flags: -C no-prepopulate-passes
+
+#![crate_type = "lib"]
+
+pub struct S24 {
+  a: i8,
+  b: i8,
+  c: i8,
+}
+
+pub struct S48 {
+  a: i16,
+  b: i16,
+  c: i8,
+}
+
+// CHECK: i24 @struct_24_bits(i24
+#[no_mangle]
+pub extern "sysv64" fn struct_24_bits(a: S24) -> S24 {
+  a
+}
+
+// CHECK: i48 @struct_48_bits(i48
+#[no_mangle]
+pub extern "sysv64" fn struct_48_bits(a: S48) -> S48 {
+  a
+}