diff --git a/math/libm-test.inc b/math/libm-test.inc
index 81ca896..a8414ec 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -6209,7 +6209,11 @@ static const struct test_c_f_data cimag_test_data[] =
     TEST_c_f (cimag, 1.0, 0.0, 0.0, NO_INEXACT_EXCEPTION),
     TEST_c_f (cimag, 1.0, minus_zero, minus_zero, NO_INEXACT_EXCEPTION),
     TEST_c_f (cimag, 1.0, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
+    TEST_c_f (cimag, 1.0, snan_value, snan_value, NO_INEXACT_EXCEPTION),
     TEST_c_f (cimag, qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
+    TEST_c_f (cimag, qnan_value, snan_value, snan_value, NO_INEXACT_EXCEPTION),
+    TEST_c_f (cimag, snan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
+    TEST_c_f (cimag, snan_value, snan_value, snan_value, NO_INEXACT_EXCEPTION),
     TEST_c_f (cimag, 1.0, plus_infty, plus_infty, NO_INEXACT_EXCEPTION),
     TEST_c_f (cimag, 1.0, minus_infty, minus_infty, NO_INEXACT_EXCEPTION),
     TEST_c_f (cimag, 2.0, 3.0, 3.0, NO_INEXACT_EXCEPTION),
@@ -6347,6 +6351,9 @@ static const struct test_c_c_data conj_test_data[] =
     TEST_c_c (conj, 0.0, 0.0, 0.0, minus_zero, NO_INEXACT_EXCEPTION),
     TEST_c_c (conj, 0.0, minus_zero, 0.0, 0.0, NO_INEXACT_EXCEPTION),
     TEST_c_c (conj, qnan_value, qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
+    TEST_c_c (conj, qnan_value, snan_value, qnan_value, snan_value, NO_INEXACT_EXCEPTION),
+    TEST_c_c (conj, snan_value, qnan_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION),
+    TEST_c_c (conj, snan_value, snan_value, snan_value, snan_value, NO_INEXACT_EXCEPTION),
     TEST_c_c (conj, plus_infty, minus_infty, plus_infty, plus_infty, NO_INEXACT_EXCEPTION),
     TEST_c_c (conj, plus_infty, plus_infty, plus_infty, minus_infty, NO_INEXACT_EXCEPTION),
     TEST_c_c (conj, 1.0, 2.0, 1.0, -2.0, NO_INEXACT_EXCEPTION),
@@ -6402,6 +6409,31 @@ static const struct test_ff_f_data copysign_test_data[] =
     TEST_ff_f (copysign, -qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
     TEST_ff_f (copysign, -qnan_value, -qnan_value, -qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
 
+    TEST_ff_f (copysign, 0, snan_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_ff_f (copysign, 0, -snan_value, minus_zero, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_ff_f (copysign, minus_zero, snan_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_ff_f (copysign, minus_zero, -snan_value, minus_zero, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+
+    TEST_ff_f (copysign, snan_value, 0, snan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+    TEST_ff_f (copysign, snan_value, minus_zero, -snan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+    TEST_ff_f (copysign, -snan_value, 0, snan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+    TEST_ff_f (copysign, -snan_value, minus_zero, -snan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+
+    TEST_ff_f (copysign, qnan_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+    TEST_ff_f (copysign, qnan_value, -snan_value, -qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+    TEST_ff_f (copysign, -qnan_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+    TEST_ff_f (copysign, -qnan_value, -snan_value, -qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+
+    TEST_ff_f (copysign, snan_value, qnan_value, snan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+    TEST_ff_f (copysign, snan_value, -qnan_value, -snan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+    TEST_ff_f (copysign, -snan_value, qnan_value, snan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+    TEST_ff_f (copysign, -snan_value, -qnan_value, -snan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+
+    TEST_ff_f (copysign, snan_value, snan_value, snan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+    TEST_ff_f (copysign, snan_value, -snan_value, -snan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+    TEST_ff_f (copysign, -snan_value, snan_value, snan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+    TEST_ff_f (copysign, -snan_value, -snan_value, -snan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED|TEST_NAN_SIGN),
+
     TEST_ff_f (copysign, min_value, min_subnorm_value, min_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_ff_f (copysign, min_value, -min_subnorm_value, -min_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_ff_f (copysign, -min_value, min_subnorm_value, min_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
@@ -6547,7 +6579,11 @@ static const struct test_c_f_data creal_test_data[] =
     TEST_c_f (creal, 0.0, 1.0, 0.0, NO_INEXACT_EXCEPTION),
     TEST_c_f (creal, minus_zero, 1.0, minus_zero, NO_INEXACT_EXCEPTION),
     TEST_c_f (creal, qnan_value, 1.0, qnan_value, NO_INEXACT_EXCEPTION),
+    TEST_c_f (creal, snan_value, 1.0, snan_value, NO_INEXACT_EXCEPTION),
     TEST_c_f (creal, qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
+    TEST_c_f (creal, qnan_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION),
+    TEST_c_f (creal, snan_value, qnan_value, snan_value, NO_INEXACT_EXCEPTION),
+    TEST_c_f (creal, snan_value, snan_value, snan_value, NO_INEXACT_EXCEPTION),
     TEST_c_f (creal, plus_infty, 1.0, plus_infty, NO_INEXACT_EXCEPTION),
     TEST_c_f (creal, minus_infty, 1.0, minus_infty, NO_INEXACT_EXCEPTION),
     TEST_c_f (creal, 2.0, 3.0, 2.0, NO_INEXACT_EXCEPTION),
@@ -7312,16 +7348,28 @@ static const struct test_fff_f_data fma_test_data[] =
   {
     TEST_fff_f (fma, qnan_value, 2.0, 3.0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, -qnan_value, 2.0, 3.0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_fff_f (fma, snan_value, 2.0, 3.0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, -snan_value, 2.0, 3.0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_fff_f (fma, 1.0, qnan_value, 3.0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, 1.0, -qnan_value, 3.0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_fff_f (fma, 1.0, snan_value, 3.0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, 1.0, -snan_value, 3.0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_fff_f (fma, 1.0, 2.0, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, 1.0, 2.0, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_fff_f (fma, 1.0, 2.0, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, 1.0, 2.0, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_fff_f (fma, max_value, max_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, max_value, max_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, min_value, min_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, min_value, min_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, min_subnorm_value, min_subnorm_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, min_subnorm_value, min_subnorm_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_fff_f (fma, max_value, max_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, max_value, max_value, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, min_value, min_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, min_value, min_value, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, min_subnorm_value, min_subnorm_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, min_subnorm_value, min_subnorm_value, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_fff_f (fma, qnan_value, qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, qnan_value, qnan_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, qnan_value, -qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
@@ -7330,26 +7378,41 @@ static const struct test_fff_f_data fma_test_data[] =
     TEST_fff_f (fma, -qnan_value, qnan_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, -qnan_value, -qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, -qnan_value, -qnan_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_fff_f (fma, snan_value, qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, qnan_value, snan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, qnan_value, qnan_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, snan_value, snan_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_fff_f (fma, 1.0, qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, 1.0, qnan_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, 1.0, -qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, 1.0, -qnan_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_fff_f (fma, 1.0, snan_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_fff_f (fma, qnan_value, 2.0, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, qnan_value, 2.0, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, -qnan_value, 2.0, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, -qnan_value, 2.0, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_fff_f (fma, snan_value, 2.0, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_fff_f (fma, qnan_value, qnan_value, 3.0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, qnan_value, -qnan_value, 3.0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, -qnan_value, qnan_value, 3.0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_fff_f (fma, -qnan_value, -qnan_value, 3.0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_fff_f (fma, snan_value, snan_value, 3.0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_fff_f (fma, plus_infty, 0.0, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION_OK),
     TEST_fff_f (fma, plus_infty, 0.0, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION_OK),
     TEST_fff_f (fma, minus_infty, 0.0, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION_OK),
     TEST_fff_f (fma, minus_infty, 0.0, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION_OK),
+    TEST_fff_f (fma, plus_infty, 0.0, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, plus_infty, 0.0, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, minus_infty, 0.0, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, minus_infty, 0.0, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_fff_f (fma, 0.0, plus_infty, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION_OK),
     TEST_fff_f (fma, 0.0, plus_infty, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION_OK),
     TEST_fff_f (fma, 0.0, minus_infty, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION_OK),
     TEST_fff_f (fma, 0.0, minus_infty, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION_OK),
+    TEST_fff_f (fma, 0.0, plus_infty, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, 0.0, plus_infty, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, 0.0, minus_infty, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_fff_f (fma, 0.0, minus_infty, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     /* Bug 6801: errno setting may be missing.  */
     TEST_fff_f (fma, plus_infty, 0.0, 1.0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_fff_f (fma, minus_infty, 0.0, 1.0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
@@ -7595,6 +7658,16 @@ static const struct test_ff_f_data fmod_test_data[] =
     TEST_ff_f (fmod, plus_infty, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_ff_f (fmod, minus_infty, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_ff_f (fmod, minus_infty, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_ff_f (fmod, 0, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, 0, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, minus_zero, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, minus_zero, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, 1, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, 1, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, plus_infty, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, plus_infty, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, minus_infty, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, minus_infty, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_ff_f (fmod, qnan_value, 0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_ff_f (fmod, -qnan_value, 0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_ff_f (fmod, qnan_value, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
@@ -7605,10 +7678,32 @@ static const struct test_ff_f_data fmod_test_data[] =
     TEST_ff_f (fmod, -qnan_value, plus_infty, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_ff_f (fmod, qnan_value, minus_infty, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_ff_f (fmod, -qnan_value, minus_infty, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_ff_f (fmod, snan_value, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, -snan_value, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, snan_value, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, -snan_value, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, snan_value, 1, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, -snan_value, 1, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, snan_value, plus_infty, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, -snan_value, plus_infty, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, snan_value, minus_infty, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, -snan_value, minus_infty, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_ff_f (fmod, qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_ff_f (fmod, qnan_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_ff_f (fmod, -qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_ff_f (fmod, -qnan_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_ff_f (fmod, qnan_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, qnan_value, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, -qnan_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, -qnan_value, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, snan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, snan_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, -snan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, -snan_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, snan_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, snan_value, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, -snan_value, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_ff_f (fmod, -snan_value, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
 
     TEST_ff_f (fmod, 6.5, 2.25L, 2.0L, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_ff_f (fmod, -6.5, 2.25L, -2.0L, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
