* trans-intrinsic.c: (gfc_conv_intrinsic_minmax): Emit MIN_MAX_EXPR
	or IFN_FMIN/FMAX sequence to calculate the min/max when possible.

	* gfortran.dg/max_fmax_aarch64.f90: New test.
	* gfortran.dg/min_fmin_aarch64.f90: Likewise.
	* gfortran.dg/minmax_integer.f90: Likewise.

From-SVN: r262876