diff --git a/test/runtime/samples/bitmask-overflow-slot-2/Echo.svelte b/test/runtime/samples/bitmask-overflow-slot-2/Echo.svelte
new file mode 100644
index 0000000000..c8905184dc
--- /dev/null
+++ b/test/runtime/samples/bitmask-overflow-slot-2/Echo.svelte
@@ -0,0 +1,73 @@
+<script>
+	export let d1 = 'd1';
+	export let d2 = 'd2';
+	export let d3 = 'd3';
+	export let d4 = 'd4';
+	export let d5 = 'd5';
+	export let d6 = 'd6';
+	export let d7 = 'd7';
+	export let d8 = 'd8';
+	export let d9 = 'd9';
+	export let d10 = 'd10';
+	export let d11 = 'd11';
+	export let d12 = 'd12';
+	export let d13 = 'd13';
+	export let d14 = 'd14';
+	export let d15 = 'd15';
+	export let d16 = 'd16';
+	export let d17 = 'd17';
+	export let d18 = 'd18';
+	export let d19 = 'd19';
+	export let d20 = 'd20';
+	export let d21 = 'd21';
+	export let d22 = 'd22';
+	export let d23 = 'd23';
+	export let d24 = 'd24';
+	export let d25 = 'd25';
+	export let d26 = 'd26';
+	export let d27 = 'd27';
+	export let d28 = 'd28';
+	export let d29 = 'd29';
+	export let d30 = 'd30';
+	export let d31 = 'd31';
+	export let d32 = 'd32';
+	export let d33 = 'd33';
+
+	$: dummy = d32 + ':' + d33;
+</script>
+
+<p>{d1}</p>
+<p>{d2}</p>
+<p>{d3}</p>
+<p>{d4}</p>
+<p>{d5}</p>
+<p>{d6}</p>
+<p>{d7}</p>
+<p>{d8}</p>
+<p>{d9}</p>
+<p>{d10}</p>
+<p>{d11}</p>
+<p>{d12}</p>
+<p>{d13}</p>
+<p>{d14}</p>
+<p>{d15}</p>
+<p>{d16}</p>
+<p>{d17}</p>
+<p>{d18}</p>
+<p>{d19}</p>
+<p>{d20}</p>
+<p>{d21}</p>
+<p>{d22}</p>
+<p>{d23}</p>
+<p>{d24}</p>
+<p>{d25}</p>
+<p>{d26}</p>
+<p>{d27}</p>
+<p>{d28}</p>
+<p>{d29}</p>
+<p>{d30}</p>
+<p>{d31}</p>
+<p>{d32}</p>
+<p>{d33}</p>
+
+<slot dummy={dummy}></slot>
\ No newline at end of file
diff --git a/test/runtime/samples/bitmask-overflow-slot-2/_config.js b/test/runtime/samples/bitmask-overflow-slot-2/_config.js
new file mode 100644
index 0000000000..b01bd81e00
--- /dev/null
+++ b/test/runtime/samples/bitmask-overflow-slot-2/_config.js
@@ -0,0 +1,96 @@
+export default {
+	html: `
+	<p>d1</p>
+	<p>d2</p>
+	<p>d3</p>
+	<p>d4</p>
+	<p>d5</p>
+	<p>d6</p>
+	<p>d7</p>
+	<p>d8</p>
+	<p>d9</p>
+	<p>d10</p>
+	<p>d11</p>
+	<p>d12</p>
+	<p>d13</p>
+	<p>d14</p>
+	<p>d15</p>
+	<p>d16</p>
+	<p>d17</p>
+	<p>d18</p>
+	<p>d19</p>
+	<p>d20</p>
+	<p>d21</p>
+	<p>d22</p>
+	<p>d23</p>
+	<p>d24</p>
+	<p>d25</p>
+	<p>d26</p>
+	<p>d27</p>
+	<p>d28</p>
+	<p>d29</p>
+	<p>d30</p>
+	<p>d31</p>
+	<p>2</p>
+	<p>1</p>
+	<p>0:1</p>
+	<p>2:1</p>
+	<p>0</p>
+	<p>1</p>
+	<p>2</p>
+	`,
+
+	test({ assert, component, target }) {
+		component.reads = {};
+
+		component._0 = 'a';
+		component._1 = 'b';
+		component._2 = 'c';
+
+		assert.htmlEqual(target.innerHTML, `
+			<p>d1</p>
+			<p>d2</p>
+			<p>d3</p>
+			<p>d4</p>
+			<p>d5</p>
+			<p>d6</p>
+			<p>d7</p>
+			<p>d8</p>
+			<p>d9</p>
+			<p>d10</p>
+			<p>d11</p>
+			<p>d12</p>
+			<p>d13</p>
+			<p>d14</p>
+			<p>d15</p>
+			<p>d16</p>
+			<p>d17</p>
+			<p>d18</p>
+			<p>d19</p>
+			<p>d20</p>
+			<p>d21</p>
+			<p>d22</p>
+			<p>d23</p>
+			<p>d24</p>
+			<p>d25</p>
+			<p>d26</p>
+			<p>d27</p>
+			<p>d28</p>
+			<p>d29</p>
+			<p>d30</p>
+			<p>d31</p>
+			<p>c</p>
+			<p>b</p>
+			<p>a:b</p>
+			<p>c:b</p>
+			<p>a</p>
+			<p>b</p>
+			<p>c</p>
+		`);
+
+		assert.deepEqual(component.reads, {
+			_0: 2,
+			_1: 2,
+		});
+	}
+};
\ No newline at end of file
diff --git a/test/runtime/samples/bitmask-overflow-slot-2/main.svelte b/test/runtime/samples/bitmask-overflow-slot-2/main.svelte
new file mode 100644
index 0000000000..c15b4d5322
--- /dev/null
+++ b/test/runtime/samples/bitmask-overflow-slot-2/main.svelte
@@ -0,0 +1,30 @@
+<script>
+	import Echo from './Echo.svelte';
+
+	export let reads = {};
+
+	export let _0 = '0';
+	export let _1 = '1';
+	export let _2 = '2';
+
+	$: bar = read(_0, '_0') + ':' + read(_1, '_1');
+
+	const read = (value, label) => {
+		if (!reads[label]) reads[label] = 0;
+		reads[label] += 1;
+
+		return value;
+	};
+</script>
+
+<Echo
+	let:dummy
+	d33={_1}
+	d32={_2}
+>
+	<p>{bar}</p>
+	<p>{dummy}</p>
+	<p>{_0}</p>
+	<p>{_1}</p>
+	<p>{_2}</p>
+</Echo>
\ No newline at end of file