diff --git a/tests/source/issue_4579.rs b/tests/source/issue_4579.rs
new file mode 100644
index 000000000000..73f345233ba7
--- /dev/null
+++ b/tests/source/issue_4579.rs
@@ -0,0 +1,15 @@
+// rustfmt-hard_tabs: true
+
+#[macro_export]
+macro_rules! main {
+	() => {
+		#[spirv(fragment)]
+		pub fn main_fs(
+			mut out_color: ::spirv_std::storage_class::Output<Vec4>,
+			#[spirv(descriptor_set = 1)]iChannelResolution: ::spirv_std::storage_class::UniformConstant<
+				[::spirv_std::glam::Vec3A; 4],
+			>,
+		) {
+		}
+	};
+}
diff --git a/tests/target/issue_4579.rs b/tests/target/issue_4579.rs
new file mode 100644
index 000000000000..7b0a5f3a62e4
--- /dev/null
+++ b/tests/target/issue_4579.rs
@@ -0,0 +1,16 @@
+// rustfmt-hard_tabs: true
+
+#[macro_export]
+macro_rules! main {
+	() => {
+		#[spirv(fragment)]
+		pub fn main_fs(
+			mut out_color: ::spirv_std::storage_class::Output<Vec4>,
+			#[spirv(descriptor_set = 1)]
+			iChannelResolution: ::spirv_std::storage_class::UniformConstant<
+				[::spirv_std::glam::Vec3A; 4],
+			>,
+		) {
+		}
+	};
+}