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-rw-r--r--math/libm-test.inc5
1 files changed, 5 insertions, 0 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc
index b3396b6a79..6045764fd3 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -7219,6 +7219,11 @@ static const struct test_f_i_data ilogb_test_data[] =
TEST_f_i (ilogb, 1024, 10, NO_INEXACT_EXCEPTION),
TEST_f_i (ilogb, -2000, 10, NO_INEXACT_EXCEPTION),
+#if defined TEST_LDOUBLE && LDBL_MANT_DIG >= 57
+ TEST_f_i (ilogb, 0x1.ffffffffffffffp1L, 1, NO_INEXACT_EXCEPTION),
+ TEST_f_i (ilogb, -0x1.ffffffffffffffp1L, 1, NO_INEXACT_EXCEPTION),
+#endif
+
/* ilogb (0.0) == FP_ILOGB0 plus invalid exception */
TEST_f_i (ilogb, 0.0, FP_ILOGB0, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
/* ilogb (qNaN) == FP_ILOGBNAN plus invalid exception */