diff --git a/dlls/d3dx9_36/tests/math.c b/dlls/d3dx9_36/tests/math.c
index ca1c87d..b418126 100644
--- a/dlls/d3dx9_36/tests/math.c
+++ b/dlls/d3dx9_36/tests/math.c
@@ -2281,6 +2281,37 @@ static void test_D3DXFloat_Array(void)
         ok(relative_error(single, testdata[i].single_out_ver2) < admitted_error,
            "Got %f, expected %f for index %d.\n", single, testdata[i].single_out_ver2, i);
     }
+
+    {
+        HMODULE dll_handle = NULL;
+        D3DXFLOAT16 res, res2;
+        D3DXFLOAT16* (WINAPI * float32to16)(D3DXFLOAT16 *pout, CONST FLOAT *pin, UINT n);
+        union
+        {
+            float f;
+            DWORD d;
+        } x;
+
+        dll_handle = LoadLibraryA("d3dx9_36_2.dll");
+        if (!dll_handle) skip("init: Could not load d3dx9_36_2.dll.\n");
+
+        float32to16 = (void *)GetProcAddress(dll_handle, "D3DXFloat32To16Array");
+        if (!float32to16)
+        {
+            FreeLibrary(dll_handle);
+            skip("init: Could not get function pointer (D3DXFloat32To16Array).\n");
+        }
+
+        for (i = 0; i < 0xfffff000; i += 0xfff)
+        {
+            x.d = i;
+            float32to16(&res, &x.f, 1);
+            D3DXFloat32To16Array(&res2, &x.f, 1);
+
+            ok(res.value == res2.value, "Failed i=%#x f=%f (%#x!=%#x)\n", i, x.f, res.value, res2.value);
+        }
+        FreeLibrary(dll_handle);
+    }
 }
 
 START_TEST(math)