* trans-expr.c (gfc_conv_power_op): Handle floating-point types

	* trans-expr.c (gfc_conv_power_op): Handle floating-point types
	other than long double.
	* mathbuiltins.def: Add builtins from the POW and CPOW family.
	* trans.h (gfc_builtin_decl_for_float_kind): New prototype.
	* trans-intrinsic.c (gfc_builtin_decl_for_float_kind): Add gfc_
	prefix to function name.
	(gfc_build_intrinsic_lib_fndecls): Add cpow prototype.
	(gfc_conv_intrinsic_aint): Use gfc_builtin_decl_for_float_kind
	function name.
	(gfc_conv_intrinsic_exponent): Likewise.
	(gfc_conv_intrinsic_abs): Likewise.
	(gfc_conv_intrinsic_mod): Likewise.
	(gfc_conv_intrinsic_sign): Likewise.
	(gfc_conv_intrinsic_arith): Likewise.
	(gfc_conv_intrinsic_fraction): Likewise.
	(gfc_conv_intrinsic_nearest): Likewise.
	(gfc_conv_intrinsic_spacing): Likewise.
	(gfc_conv_intrinsic_rrspacing): Likewise.
	(gfc_conv_intrinsic_scale): Likewise.
	(gfc_conv_intrinsic_set_exponent): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@163721 138bc75d-0d04-0410-961f-82ee72b054a4