path: root/gcc/fortran/intrinsic.h

/* Header file for intrinsics check, resolve and simplify function
   prototypes.
   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
   2010, 2011 Free Software Foundation, Inc.
   Contributed by Andy Vaught & Katherine Holcomb

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */

/* Expression returned when simplification fails.  */

extern gfc_expr gfc_bad_expr;


/* Check functions.  */
gfc_try gfc_check_a_ikind (gfc_expr *, gfc_expr *);
gfc_try gfc_check_a_xkind (gfc_expr *, gfc_expr *);
gfc_try gfc_check_a_p (gfc_expr *, gfc_expr *);
gfc_try gfc_check_x_yd (gfc_expr *, gfc_expr *);

gfc_try gfc_check_abs (gfc_expr *);
gfc_try gfc_check_access_func (gfc_expr *, gfc_expr *);
gfc_try gfc_check_achar (gfc_expr *, gfc_expr *);
gfc_try gfc_check_all_any (gfc_expr *, gfc_expr *);
gfc_try gfc_check_allocated (gfc_expr *);
gfc_try gfc_check_associated (gfc_expr *, gfc_expr *);
gfc_try gfc_check_atan_2 (gfc_expr *, gfc_expr *);
gfc_try gfc_check_atan2 (gfc_expr *, gfc_expr *);
gfc_try gfc_check_besn (gfc_expr *, gfc_expr *);
gfc_try gfc_check_bessel_n2 (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_bge_bgt_ble_blt (gfc_expr *, gfc_expr *);
gfc_try gfc_check_bitfcn (gfc_expr *, gfc_expr *);
gfc_try gfc_check_char (gfc_expr *, gfc_expr *);
gfc_try gfc_check_chdir (gfc_expr *);
gfc_try gfc_check_chmod (gfc_expr *, gfc_expr *);
gfc_try gfc_check_cmplx (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_complex (gfc_expr *, gfc_expr *);
gfc_try gfc_check_count (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_cshift (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_ctime (gfc_expr *);
gfc_try gfc_check_datan2 (gfc_expr *, gfc_expr *);
gfc_try gfc_check_dcmplx (gfc_expr *, gfc_expr *);
gfc_try gfc_check_dble (gfc_expr *);
gfc_try gfc_check_digits (gfc_expr *);
gfc_try gfc_check_dot_product (gfc_expr *, gfc_expr *);
gfc_try gfc_check_dprod (gfc_expr *, gfc_expr *);
gfc_try gfc_check_dshift (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_eoshift (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_dtime_etime (gfc_expr *);
gfc_try gfc_check_fgetputc (gfc_expr *, gfc_expr *);
gfc_try gfc_check_fgetput (gfc_expr *);
gfc_try gfc_check_float (gfc_expr *);
gfc_try gfc_check_fstat (gfc_expr *, gfc_expr *);
gfc_try gfc_check_ftell (gfc_expr *);
gfc_try gfc_check_fn_c (gfc_expr *);
gfc_try gfc_check_fn_d (gfc_expr *);
gfc_try gfc_check_fn_r (gfc_expr *);
gfc_try gfc_check_fn_rc (gfc_expr *);
gfc_try gfc_check_fn_rc2008 (gfc_expr *);
gfc_try gfc_check_fnum (gfc_expr *);
gfc_try gfc_check_hostnm (gfc_expr *);
gfc_try gfc_check_huge (gfc_expr *);
gfc_try gfc_check_hypot (gfc_expr *, gfc_expr *);
gfc_try gfc_check_i (gfc_expr *);
gfc_try gfc_check_iand (gfc_expr *, gfc_expr *);
gfc_try gfc_check_and (gfc_expr *, gfc_expr *);
gfc_try gfc_check_ibits (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_ichar_iachar (gfc_expr *, gfc_expr *);
gfc_try gfc_check_idnint (gfc_expr *);
gfc_try gfc_check_ieor (gfc_expr *, gfc_expr *);
gfc_try gfc_check_index (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_int (gfc_expr *, gfc_expr *);
gfc_try gfc_check_intconv (gfc_expr *);
gfc_try gfc_check_ior (gfc_expr *, gfc_expr *);
gfc_try gfc_check_irand (gfc_expr *);
gfc_try gfc_check_isatty (gfc_expr *);
gfc_try gfc_check_isnan (gfc_expr *);
gfc_try gfc_check_ishft (gfc_expr *, gfc_expr *);
gfc_try gfc_check_ishftc (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_kill (gfc_expr *, gfc_expr *);
gfc_try gfc_check_kind (gfc_expr *);
gfc_try gfc_check_lbound (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_lcobound (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_len_lentrim (gfc_expr *, gfc_expr *);
gfc_try gfc_check_link (gfc_expr *, gfc_expr *);
gfc_try gfc_check_lge_lgt_lle_llt (gfc_expr *, gfc_expr *);
gfc_try gfc_check_loc (gfc_expr *);
gfc_try gfc_check_logical (gfc_expr *, gfc_expr *);
gfc_try gfc_check_min_max (gfc_actual_arglist *);
gfc_try gfc_check_min_max_integer (gfc_actual_arglist *);
gfc_try gfc_check_min_max_real (gfc_actual_arglist *);
gfc_try gfc_check_min_max_double (gfc_actual_arglist *);
gfc_try gfc_check_malloc (gfc_expr *);
gfc_try gfc_check_mask (gfc_expr *, gfc_expr *);
gfc_try gfc_check_matmul (gfc_expr *, gfc_expr *);
gfc_try gfc_check_merge (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_merge_bits (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_minloc_maxloc (gfc_actual_arglist *);
gfc_try gfc_check_minval_maxval (gfc_actual_arglist *);
gfc_try gfc_check_nearest (gfc_expr *, gfc_expr *);
gfc_try gfc_check_new_line (gfc_expr *);
gfc_try gfc_check_norm2 (gfc_expr *, gfc_expr *);
gfc_try gfc_check_null (gfc_expr *);
gfc_try gfc_check_pack (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_parity (gfc_expr *, gfc_expr *);
gfc_try gfc_check_precision (gfc_expr *);
gfc_try gfc_check_present (gfc_expr *);
gfc_try gfc_check_product_sum (gfc_actual_arglist *);
gfc_try gfc_check_radix (gfc_expr *);
gfc_try gfc_check_rand (gfc_expr *);
gfc_try gfc_check_range (gfc_expr *);
gfc_try gfc_check_real (gfc_expr *, gfc_expr *);
gfc_try gfc_check_rename (gfc_expr *, gfc_expr *);
gfc_try gfc_check_repeat (gfc_expr *, gfc_expr *);
gfc_try gfc_check_reshape (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_same_type_as (gfc_expr *, gfc_expr *);
gfc_try gfc_check_scale (gfc_expr *, gfc_expr *);
gfc_try gfc_check_scan (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_second_sub (gfc_expr *);
gfc_try gfc_check_secnds (gfc_expr *);
gfc_try gfc_check_selected_char_kind (gfc_expr *);
gfc_try gfc_check_selected_int_kind (gfc_expr *);
gfc_try gfc_check_selected_real_kind (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_set_exponent (gfc_expr *, gfc_expr *);
gfc_try gfc_check_shape (gfc_expr *, gfc_expr *);
gfc_try gfc_check_shift (gfc_expr *, gfc_expr *);
gfc_try gfc_check_size (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_sign (gfc_expr *, gfc_expr *);
gfc_try gfc_check_signal (gfc_expr *, gfc_expr *);
gfc_try gfc_check_sizeof (gfc_expr *);
gfc_try gfc_check_c_sizeof (gfc_expr *);
gfc_try gfc_check_sngl (gfc_expr *);
gfc_try gfc_check_spread (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_srand (gfc_expr *);
gfc_try gfc_check_stat (gfc_expr *, gfc_expr *);
gfc_try gfc_check_storage_size (gfc_expr *, gfc_expr *);
gfc_try gfc_check_sum (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_symlnk (gfc_expr *, gfc_expr *);
gfc_try gfc_check_transf_bit_intrins (gfc_actual_arglist *);
gfc_try gfc_check_transfer (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_transpose (gfc_expr *);
gfc_try gfc_check_trim (gfc_expr *);
gfc_try gfc_check_ttynam (gfc_expr *);
gfc_try gfc_check_ubound (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_ucobound (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_umask (gfc_expr *);
gfc_try gfc_check_unlink (gfc_expr *);
gfc_try gfc_check_unpack (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_verify (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_x (gfc_expr *);


/* Intrinsic subroutines.  */
gfc_try gfc_check_alarm_sub (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_chdir_sub (gfc_expr *, gfc_expr *);
gfc_try gfc_check_chmod_sub (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_cpu_time (gfc_expr *);
gfc_try gfc_check_ctime_sub (gfc_expr *, gfc_expr *);
gfc_try gfc_check_system_clock (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_date_and_time (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_exit (gfc_expr *);
gfc_try gfc_check_fdate_sub (gfc_expr *);
gfc_try gfc_check_flush (gfc_expr *);
gfc_try gfc_check_free (gfc_expr *);
gfc_try gfc_check_fstat_sub (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_gerror (gfc_expr *);
gfc_try gfc_check_getarg (gfc_expr *, gfc_expr *);
gfc_try gfc_check_getlog (gfc_expr *);
gfc_try gfc_check_move_alloc (gfc_expr *, gfc_expr *);
gfc_try gfc_check_mvbits (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *,
		      gfc_expr *);
gfc_try gfc_check_random_number (gfc_expr *);
gfc_try gfc_check_random_seed (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_dtime_etime_sub (gfc_expr *, gfc_expr *);
gfc_try gfc_check_fgetputc_sub (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_fgetput_sub (gfc_expr *, gfc_expr *);
gfc_try gfc_check_fseek_sub (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_ftell_sub (gfc_expr *, gfc_expr *);
gfc_try gfc_check_getcwd_sub (gfc_expr *, gfc_expr *);
gfc_try gfc_check_hostnm_sub (gfc_expr *, gfc_expr *);
gfc_try gfc_check_image_index (gfc_expr *, gfc_expr *);
gfc_try gfc_check_itime_idate (gfc_expr *);
gfc_try gfc_check_kill_sub (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_ltime_gmtime (gfc_expr *, gfc_expr *);
gfc_try gfc_check_perror (gfc_expr *);
gfc_try gfc_check_rename_sub (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_link_sub (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_symlnk_sub (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_signal_sub (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_sleep_sub (gfc_expr *);
gfc_try gfc_check_stat_sub (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_try gfc_check_system_sub (gfc_expr *, gfc_expr *);
gfc_try gfc_check_this_image (gfc_expr *, gfc_expr *);
gfc_try gfc_check_ttynam_sub (gfc_expr *, gfc_expr *);
gfc_try gfc_check_umask_sub (gfc_expr *, gfc_expr *);
gfc_try gfc_check_unlink_sub (gfc_expr *, gfc_expr *);


/* Simplification functions.  */
gfc_expr *gfc_simplify_abs (gfc_expr *);
gfc_expr *gfc_simplify_achar (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_acos (gfc_expr *);
gfc_expr *gfc_simplify_acosh (gfc_expr *);
gfc_expr *gfc_simplify_adjustl (gfc_expr *);
gfc_expr *gfc_simplify_adjustr (gfc_expr *);
gfc_expr *gfc_simplify_aimag (gfc_expr *);
gfc_expr *gfc_simplify_aint (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_all (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_dint (gfc_expr *);
gfc_expr *gfc_simplify_anint (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_dnint (gfc_expr *);
gfc_expr *gfc_simplify_and (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_any (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_asin (gfc_expr *);
gfc_expr *gfc_simplify_asinh (gfc_expr *);
gfc_expr *gfc_simplify_atan (gfc_expr *);
gfc_expr *gfc_simplify_atanh (gfc_expr *);
gfc_expr *gfc_simplify_atan2 (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_bessel_j0 (gfc_expr *);
gfc_expr *gfc_simplify_bessel_j1 (gfc_expr *);
gfc_expr *gfc_simplify_bessel_jn (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_bessel_jn2 (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_bessel_y0 (gfc_expr *);
gfc_expr *gfc_simplify_bessel_y1 (gfc_expr *);
gfc_expr *gfc_simplify_bessel_yn (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_bessel_yn2 (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_bge (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_bgt (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_bit_size (gfc_expr *);
gfc_expr *gfc_simplify_ble (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_blt (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_btest (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_ceiling (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_char (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_cmplx (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_compiler_options (void);
gfc_expr *gfc_simplify_compiler_version (void);
gfc_expr *gfc_simplify_complex (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_conjg (gfc_expr *);
gfc_expr *gfc_simplify_cos (gfc_expr *);
gfc_expr *gfc_simplify_cosh (gfc_expr *);
gfc_expr *gfc_simplify_count (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_dcmplx (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_dble (gfc_expr *);
gfc_expr *gfc_simplify_digits (gfc_expr *);
gfc_expr *gfc_simplify_dim (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_dprod (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_dot_product (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_dshiftl (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_dshiftr (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_epsilon (gfc_expr *);
gfc_expr *gfc_simplify_erf (gfc_expr *);
gfc_expr *gfc_simplify_erfc (gfc_expr *);
gfc_expr *gfc_simplify_erfc_scaled (gfc_expr *);
gfc_expr *gfc_simplify_exp (gfc_expr *);
gfc_expr *gfc_simplify_exponent (gfc_expr *);
gfc_expr *gfc_simplify_extends_type_of (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_float (gfc_expr *);
gfc_expr *gfc_simplify_floor (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_fraction (gfc_expr *);
gfc_expr *gfc_simplify_gamma (gfc_expr *);
gfc_expr *gfc_simplify_huge (gfc_expr *);
gfc_expr *gfc_simplify_hypot (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_iachar (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_iall (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_iand (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_iany (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_ibclr (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_ibits (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_ibset (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_ichar (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_ieor (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_image_index (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_index (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_int (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_int2 (gfc_expr *);
gfc_expr *gfc_simplify_int8 (gfc_expr *);
gfc_expr *gfc_simplify_long (gfc_expr *);
gfc_expr *gfc_simplify_ifix (gfc_expr *);
gfc_expr *gfc_simplify_idint (gfc_expr *);
gfc_expr *gfc_simplify_ior (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_iparity (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_is_iostat_end (gfc_expr *);
gfc_expr *gfc_simplify_is_iostat_eor (gfc_expr *);
gfc_expr *gfc_simplify_isnan (gfc_expr *);
gfc_expr *gfc_simplify_ishft (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_ishftc (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_kind (gfc_expr *);
gfc_expr *gfc_simplify_lbound (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_lcobound (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_leadz (gfc_expr *);
gfc_expr *gfc_simplify_len (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_len_trim (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_lgamma (gfc_expr *);
gfc_expr *gfc_simplify_lge (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_lgt (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_lle (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_llt (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_log (gfc_expr *);
gfc_expr *gfc_simplify_log10 (gfc_expr *);
gfc_expr *gfc_simplify_logical (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_lshift (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_matmul (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_maskl (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_maskr (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_merge (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_merge_bits (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_min (gfc_expr *);
gfc_expr *gfc_simplify_minval (gfc_expr *, gfc_expr*, gfc_expr*);
gfc_expr *gfc_simplify_max (gfc_expr *);
gfc_expr *gfc_simplify_maxval (gfc_expr *, gfc_expr*, gfc_expr*);
gfc_expr *gfc_simplify_maxexponent (gfc_expr *);
gfc_expr *gfc_simplify_minexponent (gfc_expr *);
gfc_expr *gfc_simplify_mod (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_modulo (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_mvbits (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *,
			       gfc_expr *);
gfc_expr *gfc_simplify_nearest (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_new_line (gfc_expr *);
gfc_expr *gfc_simplify_nint (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_norm2 (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_null (gfc_expr *);
gfc_expr *gfc_simplify_num_images (void);
gfc_expr *gfc_simplify_idnint (gfc_expr *);
gfc_expr *gfc_simplify_not (gfc_expr *);
gfc_expr *gfc_simplify_or (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_pack (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_parity (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_popcnt (gfc_expr *);
gfc_expr *gfc_simplify_poppar (gfc_expr *);
gfc_expr *gfc_simplify_precision (gfc_expr *);
gfc_expr *gfc_simplify_product (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_radix (gfc_expr *);
gfc_expr *gfc_simplify_range (gfc_expr *);
gfc_expr *gfc_simplify_real (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_realpart (gfc_expr *);
gfc_expr *gfc_simplify_repeat (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_reshape (gfc_expr *, gfc_expr *, gfc_expr *,
				gfc_expr *);
gfc_expr *gfc_simplify_rrspacing (gfc_expr *);
gfc_expr *gfc_simplify_rshift (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_same_type_as (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_scale (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_scan (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_selected_char_kind (gfc_expr *);
gfc_expr *gfc_simplify_selected_int_kind (gfc_expr *);
gfc_expr *gfc_simplify_selected_real_kind (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_set_exponent (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_sign (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_shape (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_shifta (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_shiftl (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_shiftr (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_sin (gfc_expr *);
gfc_expr *gfc_simplify_sinh (gfc_expr *);
gfc_expr *gfc_simplify_size (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_sngl (gfc_expr *);
gfc_expr *gfc_simplify_spacing (gfc_expr *);
gfc_expr *gfc_simplify_spread (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_sqrt (gfc_expr *);
gfc_expr *gfc_simplify_sum (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_tan (gfc_expr *);
gfc_expr *gfc_simplify_tanh (gfc_expr *);
gfc_expr *gfc_simplify_this_image (gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_tiny (gfc_expr *);
gfc_expr *gfc_simplify_trailz (gfc_expr *);
gfc_expr *gfc_simplify_transfer (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_transpose (gfc_expr *);
gfc_expr *gfc_simplify_trim (gfc_expr *);
gfc_expr *gfc_simplify_ubound (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_ucobound (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_unpack (gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_verify (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
gfc_expr *gfc_simplify_xor (gfc_expr *, gfc_expr *);

/* Constant conversion simplification.  */
gfc_expr *gfc_convert_constant (gfc_expr *, bt, int);
gfc_expr *gfc_convert_char_constant (gfc_expr *, bt, int);


/* Resolution functions.  */
void gfc_resolve_abs (gfc_expr *, gfc_expr *);
void gfc_resolve_access (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_adjustl (gfc_expr *, gfc_expr *);
void gfc_resolve_adjustr (gfc_expr *, gfc_expr *);
void gfc_resolve_achar (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_acos (gfc_expr *, gfc_expr *);
void gfc_resolve_acosh (gfc_expr *, gfc_expr *);
void gfc_resolve_aimag (gfc_expr *, gfc_expr *);
void gfc_resolve_aint (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_dint (gfc_expr *, gfc_expr *);
void gfc_resolve_all (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_anint (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_dnint (gfc_expr *, gfc_expr *);
void gfc_resolve_and (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_any (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_asin (gfc_expr *, gfc_expr *);
void gfc_resolve_asinh (gfc_expr *, gfc_expr *);
void gfc_resolve_atan (gfc_expr *, gfc_expr *);
void gfc_resolve_atanh (gfc_expr *, gfc_expr *);
void gfc_resolve_atan2 (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_besn (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_bessel_n2 (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *a);
void gfc_resolve_btest (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_ceiling (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_char (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_chdir (gfc_expr *, gfc_expr *);
void gfc_resolve_chmod (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_cmplx (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_dcmplx (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_complex (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_conjg (gfc_expr *, gfc_expr *);
void gfc_resolve_cos (gfc_expr *, gfc_expr *);
void gfc_resolve_cosh (gfc_expr *, gfc_expr *);
void gfc_resolve_count (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_cshift (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_ctime (gfc_expr *, gfc_expr *);
void gfc_resolve_dble (gfc_expr *, gfc_expr *);
void gfc_resolve_dim (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_dot_product (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_dprod (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_dshift (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_dtime_sub (gfc_code *);
void gfc_resolve_eoshift (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *,
			  gfc_expr *);
void gfc_resolve_etime_sub (gfc_code *);
void gfc_resolve_exp (gfc_expr *, gfc_expr *);
void gfc_resolve_exponent (gfc_expr *, gfc_expr *);
void gfc_resolve_extends_type_of (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_fdate (gfc_expr *);
void gfc_resolve_floor (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_fnum (gfc_expr *, gfc_expr *);
void gfc_resolve_fraction (gfc_expr *, gfc_expr *);
void gfc_resolve_fstat (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_ftell (gfc_expr *, gfc_expr *);
void gfc_resolve_fgetc (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_fget (gfc_expr *, gfc_expr *);
void gfc_resolve_fputc (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_fput (gfc_expr *, gfc_expr *);
void gfc_resolve_g77_math1 (gfc_expr *, gfc_expr *);
void gfc_resolve_gamma (gfc_expr *, gfc_expr *);
void gfc_resolve_getcwd (gfc_expr *, gfc_expr *);
void gfc_resolve_getgid (gfc_expr *);
void gfc_resolve_getpid (gfc_expr *);
void gfc_resolve_getuid (gfc_expr *);
void gfc_resolve_hostnm (gfc_expr *, gfc_expr *);
void gfc_resolve_hypot (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_iand (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_ibclr (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_ibits (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_ibset (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_image_index (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_index_func (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *,
			     gfc_expr *);
void gfc_resolve_ierrno (gfc_expr *);
void gfc_resolve_ieor (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_ichar (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_iachar (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_iall (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_iany (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_idnint (gfc_expr *, gfc_expr *);
void gfc_resolve_int (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_int2 (gfc_expr *, gfc_expr *);
void gfc_resolve_int8 (gfc_expr *, gfc_expr *);
void gfc_resolve_long (gfc_expr *, gfc_expr *);
void gfc_resolve_ior (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_iparity (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_isatty (gfc_expr *, gfc_expr *);
void gfc_resolve_rshift (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_lshift (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_ishft (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_ishftc (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_kill (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_lbound (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_lcobound (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_len (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_len_trim (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_lgamma (gfc_expr *, gfc_expr *);
void gfc_resolve_link (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_loc (gfc_expr *, gfc_expr *);
void gfc_resolve_log (gfc_expr *, gfc_expr *);
void gfc_resolve_log10 (gfc_expr *, gfc_expr *);
void gfc_resolve_logical (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_lstat (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_malloc (gfc_expr *, gfc_expr *);
void gfc_resolve_matmul (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_max (gfc_expr *, gfc_actual_arglist *);
void gfc_resolve_maxloc (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_maxval (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_mclock (gfc_expr *);
void gfc_resolve_mclock8 (gfc_expr *);
void gfc_resolve_mask (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_merge (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_merge_bits (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_min (gfc_expr *, gfc_actual_arglist *);
void gfc_resolve_minloc (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_minval (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_mod (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_modulo (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_nearest (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_nint (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_norm2 (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_not (gfc_expr *, gfc_expr *);
void gfc_resolve_or (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_pack (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_parity (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_product (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_real (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_realpart (gfc_expr *, gfc_expr *);
void gfc_resolve_rename (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_repeat (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_reshape (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *,
			  gfc_expr *);
void gfc_resolve_rrspacing (gfc_expr *, gfc_expr *);
void gfc_resolve_scale (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_scan (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *,
		       gfc_expr *);
void gfc_resolve_second_sub (gfc_code *);
void gfc_resolve_secnds (gfc_expr *, gfc_expr *);
void gfc_resolve_set_exponent (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_shape (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_shift (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_sign (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_signal (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_sin (gfc_expr *, gfc_expr *);
void gfc_resolve_sinh (gfc_expr *, gfc_expr *);
void gfc_resolve_size (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_spacing (gfc_expr *, gfc_expr *);
void gfc_resolve_spread (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_sqrt (gfc_expr *, gfc_expr *);
void gfc_resolve_stat (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_storage_size (gfc_expr *f, gfc_expr *a, gfc_expr *kind);
void gfc_resolve_srand (gfc_code *);
void gfc_resolve_sum (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_symlnk (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_system (gfc_expr *, gfc_expr *);
void gfc_resolve_tan (gfc_expr *, gfc_expr *);
void gfc_resolve_tanh (gfc_expr *, gfc_expr *);
void gfc_resolve_this_image (gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_time (gfc_expr *);
void gfc_resolve_time8 (gfc_expr *);
void gfc_resolve_transfer (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_transpose (gfc_expr *, gfc_expr *);
void gfc_resolve_trim (gfc_expr *, gfc_expr *);
void gfc_resolve_ttynam (gfc_expr *, gfc_expr *);
void gfc_resolve_ubound (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_ucobound (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_umask (gfc_expr *, gfc_expr *);
void gfc_resolve_unlink (gfc_expr *, gfc_expr *);
void gfc_resolve_unpack (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
void gfc_resolve_verify (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *,
			 gfc_expr *);
void gfc_resolve_xor (gfc_expr *, gfc_expr *, gfc_expr *);


/* Intrinsic subroutine resolution.  */
void gfc_resolve_alarm_sub (gfc_code *);
void gfc_resolve_chdir_sub (gfc_code *);
void gfc_resolve_chmod_sub (gfc_code *);
void gfc_resolve_cpu_time (gfc_code *);
void gfc_resolve_ctime_sub (gfc_code *);
void gfc_resolve_execute_command_line (gfc_code *);
void gfc_resolve_exit (gfc_code *);
void gfc_resolve_fdate_sub (gfc_code *);
void gfc_resolve_flush (gfc_code *);
void gfc_resolve_free (gfc_code *);
void gfc_resolve_fseek_sub (gfc_code *);
void gfc_resolve_fstat_sub (gfc_code *);
void gfc_resolve_ftell_sub (gfc_code *);
void gfc_resolve_fgetc_sub (gfc_code *);
void gfc_resolve_fget_sub (gfc_code *);
void gfc_resolve_fputc_sub (gfc_code *);
void gfc_resolve_fput_sub (gfc_code *);
void gfc_resolve_gerror (gfc_code *);
void gfc_resolve_getarg (gfc_code *);
void gfc_resolve_getcwd_sub (gfc_code *);
void gfc_resolve_getlog (gfc_code *);
void gfc_resolve_get_command (gfc_code *);
void gfc_resolve_get_command_argument (gfc_code *);
void gfc_resolve_get_environment_variable (gfc_code *);
void gfc_resolve_gmtime (gfc_code *);
void gfc_resolve_hostnm_sub (gfc_code *);
void gfc_resolve_idate (gfc_code *);
void gfc_resolve_itime (gfc_code *);
void gfc_resolve_kill_sub (gfc_code *);
void gfc_resolve_lstat_sub (gfc_code *);
void gfc_resolve_ltime (gfc_code *);
void gfc_resolve_mvbits (gfc_code *);
void gfc_resolve_perror (gfc_code *);
void gfc_resolve_random_number (gfc_code *);
void gfc_resolve_random_seed (gfc_code *);
void gfc_resolve_rename_sub (gfc_code *);
void gfc_resolve_link_sub (gfc_code *);
void gfc_resolve_symlnk_sub (gfc_code *);
void gfc_resolve_signal_sub (gfc_code *);
void gfc_resolve_sleep_sub (gfc_code *);
void gfc_resolve_stat_sub (gfc_code *);
void gfc_resolve_system_clock (gfc_code *);
void gfc_resolve_system_sub (gfc_code *);
void gfc_resolve_ttynam_sub (gfc_code *);
void gfc_resolve_umask_sub (gfc_code *);
void gfc_resolve_unlink_sub (gfc_code *);


/* The mvbits() subroutine requires the most arguments: five.  */

#define MAX_INTRINSIC_ARGS 5

extern const char *gfc_current_intrinsic;
extern gfc_intrinsic_arg *gfc_current_intrinsic_arg[MAX_INTRINSIC_ARGS];
extern locus *gfc_current_intrinsic_where;