diff --git a/tests/hlsl/cast-to-int.shader_test b/tests/hlsl/cast-to-int.shader_test
index 385e3375..4605edb8 100644
--- a/tests/hlsl/cast-to-int.shader_test
+++ b/tests/hlsl/cast-to-int.shader_test
@@ -1,3 +1,19 @@
+[pixel shader todo(sm<4)]
+uniform float3 f;
+
+float4 main() : sv_target
+{
+    int3 r = f;
+
+    return float4(r, 0);
+}
+
+[test]
+uniform 0 float4 10.3 11.5 12.8 13.1
+todo(sm<4) draw quad
+probe all rgba (10, 11, 12, 0)
+
+
 [pixel shader todo(sm<4)]
 uniform float f;
 uniform uint u;