diff --git a/tests/checkasm/jpeg2000dsp.c b/tests/checkasm/jpeg2000dsp.c
index 4251f8982a..bce534dbaf 100644
--- a/tests/checkasm/jpeg2000dsp.c
+++ b/tests/checkasm/jpeg2000dsp.c
@@ -33,6 +33,13 @@
             src[i] = rnd();                 \
     } while (0)
 
+#define randomize_buffers_float()                    \
+    do {                                             \
+        int i;                                       \
+        for (i = 0; i < BUF_SIZE*3; i++)             \
+            src[i] = (float)rnd() / (UINT_MAX >> 5); \
+    } while (0)
+
 static void check_rct_int(void)
 {
     LOCAL_ALIGNED_32(int32_t, src, [BUF_SIZE*3]);
@@ -57,6 +64,30 @@ static void check_rct_int(void)
     bench_new(new0, new1, new2, BUF_SIZE);
 }
 
+static void check_ict_float(void)
+{
+    LOCAL_ALIGNED_32(float, src, [BUF_SIZE*3]);
+    LOCAL_ALIGNED_32(float, ref, [BUF_SIZE*3]);
+    LOCAL_ALIGNED_32(float, new, [BUF_SIZE*3]);
+    float *ref0 = &ref[BUF_SIZE*0], *new0 = &new[BUF_SIZE*0];
+    float *ref1 = &ref[BUF_SIZE*1], *new1 = &new[BUF_SIZE*1];
+    float *ref2 = &ref[BUF_SIZE*2], *new2 = &new[BUF_SIZE*2];
+
+    declare_func(void, void *src0, void *src1, void *src2, int csize);
+
+    randomize_buffers_float();
+    memcpy(ref, src, BUF_SIZE * 3 * sizeof(*src));
+    memcpy(new, src, BUF_SIZE * 3 * sizeof(*src));
+    call_ref(ref0, ref1, ref2, BUF_SIZE);
+    call_new(new0, new1, new2, BUF_SIZE);
+    if (!float_near_abs_eps_array(ref0, new0, 1.0e-5, BUF_SIZE) ||
+        !float_near_abs_eps_array(ref1, new1, 1.0e-5, BUF_SIZE) ||
+        !float_near_abs_eps_array(ref2, new2, 1.0e-5, BUF_SIZE))
+        fail();
+    memcpy(new, src, BUF_SIZE * 3 * sizeof(*src));
+    bench_new(new0, new1, new2, BUF_SIZE);
+}
+
 void checkasm_check_jpeg2000dsp(void)
 {
     Jpeg2000DSPContext h;
@@ -65,6 +96,8 @@ void checkasm_check_jpeg2000dsp(void)
 
     if (check_func(h.mct_decode[FF_DWT53], "jpeg2000_rct_int"))
         check_rct_int();
+    if (check_func(h.mct_decode[FF_DWT97], "jpeg2000_ict_float"))
+        check_ict_float();
 
     report("mct_decode");
 }