diff --git a/tests/source/issue-4603.rs b/tests/source/issue-4603.rs
new file mode 100644
index 00000000000..ba0803e0eca
--- /dev/null
+++ b/tests/source/issue-4603.rs
@@ -0,0 +1,47 @@
+// Formatting when original macro snippet is used
+
+// Original issue #4603 code
+#![feature(or_patterns)]
+macro_rules! t_or_f {
+    () => {
+        (true // some comment
+        | false)
+    };
+}
+
+// Other test cases variations
+macro_rules! RULES {
+    () => {
+        (
+		xxxxxxx // COMMENT
+        | yyyyyyy
+        )
+    };
+}
+macro_rules! RULES {
+    () => {
+        (xxxxxxx // COMMENT
+            | yyyyyyy)
+    };
+}
+
+fn main() {
+	macro_rules! RULES {
+		() => {
+			(xxxxxxx // COMMENT
+			| yyyyyyy)
+		};
+	}
+}
+
+macro_rules! RULES {
+    () => {
+        (xxxxxxx /* COMMENT */ | yyyyyyy)
+    };
+}
+macro_rules! RULES {
+    () => {
+        (xxxxxxx /* COMMENT */
+        | yyyyyyy)
+    };
+}
diff --git a/tests/target/issue-4603.rs b/tests/target/issue-4603.rs
new file mode 100644
index 00000000000..e69de29bb2d