denorm_min.cc: Use dg-add-options ieee.

denorm_min.cc: Use dg-add-options ieee.

	* testsuite/18_support/numeric_limits/denorm_min.cc: Use
	dg-add-options ieee.
	* testsuite/18_support/numeric_limits/digits10.cc: Likewise.
	* testsuite/18_support/numeric_limits/epsilon.cc: Likewise.
	* testsuite/18_support/numeric_limits/infinity.cc: Likewise.
	* testsuite/18_support/numeric_limits/is_iec559.cc: Likewise.
	* testsuite/18_support/numeric_limits/is_signed.cc: Likewise.
	* testsuite/18_support/numeric_limits/min_max.cc: Likewise.
	* testsuite/18_support/numeric_limits/quiet_NaN.cc: Likewise.
	* testsuite/18_support/numeric_limits/
	specialization_default_values.cc: Likewise.
	* testsuite/18_support/numeric_limits/traps.cc: Likewise.
	* testsuite/26_numerics/complex/pow.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	01_assoc_laguerre/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	02_assoc_legendre/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	03_beta/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	04_comp_ellint_1/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	05_comp_ellint_2/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	06_comp_ellint_3/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	07_conf_hyperg/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	08_cyl_bessel_i/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	09_cyl_bessel_j/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	10_cyl_bessel_k/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	11_cyl_neumann/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	12_ellint_1/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	13_ellint_2/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	14_ellint_3/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	15_expint/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	16_hermite/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	17_hyperg/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	18_laguerre/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	19_legendre/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	20_riemann_zeta/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	21_sph_bessel/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	22_sph_legendre/check_nan.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	23_sph_neumann/check_nan.cc: Likewise.

Co-Authored-By: Kaz Kojima <kkojima@gcc.gnu.org>
From-SVN: r151251