obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 4489 insertions, 0 deletions

diff --git a/gcc/fortran/intrinsic.c b/gcc/fortran/intrinsic.c
new file mode 100644
index 000000000..a1ca01eb4
--- /dev/null
+++ b/gcc/fortran/intrinsic.c
@@ -0,0 +1,4489 @@
+/* Build up a list of intrinsic subroutines and functions for the
+   name-resolution stage.
+   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/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "flags.h"
+#include "gfortran.h"
+#include "intrinsic.h"
+
+/* Namespace to hold the resolved symbols for intrinsic subroutines.  */
+static gfc_namespace *gfc_intrinsic_namespace;
+
+bool gfc_init_expr_flag = false;
+
+/* Pointers to an intrinsic function and its argument names that are being
+   checked.  */
+
+const char *gfc_current_intrinsic;
+gfc_intrinsic_arg *gfc_current_intrinsic_arg[MAX_INTRINSIC_ARGS];
+locus *gfc_current_intrinsic_where;
+
+static gfc_intrinsic_sym *functions, *subroutines, *conversion, *next_sym;
+static gfc_intrinsic_sym *char_conversions;
+static gfc_intrinsic_arg *next_arg;
+
+static int nfunc, nsub, nargs, nconv, ncharconv;
+
+static enum
+{ SZ_NOTHING = 0, SZ_SUBS, SZ_FUNCS, SZ_CONVS }
+sizing;
+
+enum klass
+{ CLASS_IMPURE = 0, CLASS_PURE, CLASS_ELEMENTAL,
+  CLASS_INQUIRY, CLASS_TRANSFORMATIONAL };
+
+#define ACTUAL_NO	0
+#define ACTUAL_YES	1
+
+#define REQUIRED	0
+#define OPTIONAL	1
+
+
+/* Return a letter based on the passed type.  Used to construct the
+   name of a type-dependent subroutine.  */
+
+char
+gfc_type_letter (bt type)
+{
+  char c;
+
+  switch (type)
+    {
+    case BT_LOGICAL:
+      c = 'l';
+      break;
+    case BT_CHARACTER:
+      c = 's';
+      break;
+    case BT_INTEGER:
+      c = 'i';
+      break;
+    case BT_REAL:
+      c = 'r';
+      break;
+    case BT_COMPLEX:
+      c = 'c';
+      break;
+
+    case BT_HOLLERITH:
+      c = 'h';
+      break;
+
+    default:
+      c = 'u';
+      break;
+    }
+
+  return c;
+}
+
+
+/* Get a symbol for a resolved name. Note, if needed be, the elemental
+   attribute has be added afterwards.  */
+
+gfc_symbol *
+gfc_get_intrinsic_sub_symbol (const char *name)
+{
+  gfc_symbol *sym;
+
+  gfc_get_symbol (name, gfc_intrinsic_namespace, &sym);
+  sym->attr.always_explicit = 1;
+  sym->attr.subroutine = 1;
+  sym->attr.flavor = FL_PROCEDURE;
+  sym->attr.proc = PROC_INTRINSIC;
+
+  gfc_commit_symbol (sym);
+
+  return sym;
+}
+
+
+/* Return a pointer to the name of a conversion function given two
+   typespecs.  */
+
+static const char *
+conv_name (gfc_typespec *from, gfc_typespec *to)
+{
+  return gfc_get_string ("__convert_%c%d_%c%d",
+			 gfc_type_letter (from->type), from->kind,
+			 gfc_type_letter (to->type), to->kind);
+}
+
+
+/* Given a pair of typespecs, find the gfc_intrinsic_sym node that
+   corresponds to the conversion.  Returns NULL if the conversion
+   isn't found.  */
+
+static gfc_intrinsic_sym *
+find_conv (gfc_typespec *from, gfc_typespec *to)
+{
+  gfc_intrinsic_sym *sym;
+  const char *target;
+  int i;
+
+  target = conv_name (from, to);
+  sym = conversion;
+
+  for (i = 0; i < nconv; i++, sym++)
+    if (target == sym->name)
+      return sym;
+
+  return NULL;
+}
+
+
+/* Given a pair of CHARACTER typespecs, find the gfc_intrinsic_sym node
+   that corresponds to the conversion.  Returns NULL if the conversion
+   isn't found.  */
+
+static gfc_intrinsic_sym *
+find_char_conv (gfc_typespec *from, gfc_typespec *to)
+{
+  gfc_intrinsic_sym *sym;
+  const char *target;
+  int i;
+
+  target = conv_name (from, to);
+  sym = char_conversions;
+
+  for (i = 0; i < ncharconv; i++, sym++)
+    if (target == sym->name)
+      return sym;
+
+  return NULL;
+}
+
+
+/* Interface to the check functions.  We break apart an argument list
+   and call the proper check function rather than forcing each
+   function to manipulate the argument list.  */
+
+static gfc_try
+do_check (gfc_intrinsic_sym *specific, gfc_actual_arglist *arg)
+{
+  gfc_expr *a1, *a2, *a3, *a4, *a5;
+
+  if (arg == NULL)
+    return (*specific->check.f0) ();
+
+  a1 = arg->expr;
+  arg = arg->next;
+  if (arg == NULL)
+    return (*specific->check.f1) (a1);
+
+  a2 = arg->expr;
+  arg = arg->next;
+  if (arg == NULL)
+    return (*specific->check.f2) (a1, a2);
+
+  a3 = arg->expr;
+  arg = arg->next;
+  if (arg == NULL)
+    return (*specific->check.f3) (a1, a2, a3);
+
+  a4 = arg->expr;
+  arg = arg->next;
+  if (arg == NULL)
+    return (*specific->check.f4) (a1, a2, a3, a4);
+
+  a5 = arg->expr;
+  arg = arg->next;
+  if (arg == NULL)
+    return (*specific->check.f5) (a1, a2, a3, a4, a5);
+
+  gfc_internal_error ("do_check(): too many args");
+}
+
+
+/*********** Subroutines to build the intrinsic list ****************/
+
+/* Add a single intrinsic symbol to the current list.
+
+   Argument list:
+      char *     name of function
+      int	whether function is elemental
+      int	If the function can be used as an actual argument [1]
+      bt	 return type of function
+      int	kind of return type of function
+      int	Fortran standard version
+      check      pointer to check function
+      simplify   pointer to simplification function
+      resolve    pointer to resolution function
+
+   Optional arguments come in multiples of five:
+      char *      name of argument
+      bt          type of argument
+      int         kind of argument
+      int         arg optional flag (1=optional, 0=required)
+      sym_intent  intent of argument
+
+   The sequence is terminated by a NULL name.
+
+
+ [1] Whether a function can or cannot be used as an actual argument is
+     determined by its presence on the 13.6 list in Fortran 2003.  The
+     following intrinsics, which are GNU extensions, are considered allowed
+     as actual arguments: ACOSH ATANH DACOSH DASINH DATANH DCONJG DIMAG
+     ZABS ZCOS ZEXP ZLOG ZSIN ZSQRT.  */
+
+static void
+add_sym (const char *name, gfc_isym_id id, enum klass cl, int actual_ok, bt type, int kind,
+	 int standard, gfc_check_f check, gfc_simplify_f simplify,
+	 gfc_resolve_f resolve, ...)
+{
+  char buf[GFC_MAX_SYMBOL_LEN + 11]; /* 10 for '_gfortran_', 1 for '\0'  */
+  int optional, first_flag;
+  sym_intent intent;
+  va_list argp;
+
+  switch (sizing)
+    {
+    case SZ_SUBS:
+      nsub++;
+      break;
+
+    case SZ_FUNCS:
+      nfunc++;
+      break;
+
+    case SZ_NOTHING:
+      next_sym->name = gfc_get_string (name);
+
+      strcpy (buf, "_gfortran_");
+      strcat (buf, name);
+      next_sym->lib_name = gfc_get_string (buf);
+
+      next_sym->pure = (cl != CLASS_IMPURE);
+      next_sym->elemental = (cl == CLASS_ELEMENTAL);
+      next_sym->inquiry = (cl == CLASS_INQUIRY);
+      next_sym->transformational = (cl == CLASS_TRANSFORMATIONAL);
+      next_sym->actual_ok = actual_ok;
+      next_sym->ts.type = type;
+      next_sym->ts.kind = kind;
+      next_sym->standard = standard;
+      next_sym->simplify = simplify;
+      next_sym->check = check;
+      next_sym->resolve = resolve;
+      next_sym->specific = 0;
+      next_sym->generic = 0;
+      next_sym->conversion = 0;
+      next_sym->id = id;
+      break;
+
+    default:
+      gfc_internal_error ("add_sym(): Bad sizing mode");
+    }
+
+  va_start (argp, resolve);
+
+  first_flag = 1;
+
+  for (;;)
+    {
+      name = va_arg (argp, char *);
+      if (name == NULL)
+	break;
+
+      type = (bt) va_arg (argp, int);
+      kind = va_arg (argp, int);
+      optional = va_arg (argp, int);
+      intent = (sym_intent) va_arg (argp, int);
+
+      if (sizing != SZ_NOTHING)
+	nargs++;
+      else
+	{
+	  next_arg++;
+
+	  if (first_flag)
+	    next_sym->formal = next_arg;
+	  else
+	    (next_arg - 1)->next = next_arg;
+
+	  first_flag = 0;
+
+	  strcpy (next_arg->name, name);
+	  next_arg->ts.type = type;
+	  next_arg->ts.kind = kind;
+	  next_arg->optional = optional;
+	  next_arg->value = 0;
+	  next_arg->intent = intent;
+	}
+    }
+
+  va_end (argp);
+
+  next_sym++;
+}
+
+
+/* Add a symbol to the function list where the function takes
+   0 arguments.  */
+
+static void
+add_sym_0 (const char *name, gfc_isym_id id, enum klass cl, int actual_ok, bt type,
+	   int kind, int standard,
+	   gfc_try (*check) (void),
+	   gfc_expr *(*simplify) (void),
+	   void (*resolve) (gfc_expr *))
+{
+  gfc_simplify_f sf;
+  gfc_check_f cf;
+  gfc_resolve_f rf;
+
+  cf.f0 = check;
+  sf.f0 = simplify;
+  rf.f0 = resolve;
+
+  add_sym (name, id, cl, actual_ok, type, kind, standard, cf, sf, rf,
+	   (void *) 0);
+}
+
+
+/* Add a symbol to the subroutine list where the subroutine takes
+   0 arguments.  */
+
+static void
+add_sym_0s (const char *name, gfc_isym_id id, int standard,
+	    void (*resolve) (gfc_code *))
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f1 = NULL;
+  sf.f1 = NULL;
+  rf.s1 = resolve;
+
+  add_sym (name, id, CLASS_IMPURE, ACTUAL_NO, BT_UNKNOWN, 0, standard, cf, sf,
+	   rf, (void *) 0);
+}
+
+
+/* Add a symbol to the function list where the function takes
+   1 arguments.  */
+
+static void
+add_sym_1 (const char *name, gfc_isym_id id, enum klass cl, int actual_ok, bt type,
+	   int kind, int standard,
+	   gfc_try (*check) (gfc_expr *),
+	   gfc_expr *(*simplify) (gfc_expr *),
+	   void (*resolve) (gfc_expr *, gfc_expr *),
+	   const char *a1, bt type1, int kind1, int optional1)
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f1 = check;
+  sf.f1 = simplify;
+  rf.f1 = resolve;
+
+  add_sym (name, id, cl, actual_ok, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, INTENT_IN,
+	   (void *) 0);
+}
+
+
+/* Add a symbol to the function list where the function takes
+   1 arguments, specifying the intent of the argument.  */
+
+static void
+add_sym_1_intent (const char *name, gfc_isym_id id, enum klass cl,
+		  int actual_ok, bt type, int kind, int standard,
+		  gfc_try (*check) (gfc_expr *),
+		  gfc_expr *(*simplify) (gfc_expr *),
+		  void (*resolve) (gfc_expr *, gfc_expr *),
+		  const char *a1, bt type1, int kind1, int optional1,
+		  sym_intent intent1)
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f1 = check;
+  sf.f1 = simplify;
+  rf.f1 = resolve;
+
+  add_sym (name, id, cl, actual_ok, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, intent1,
+	   (void *) 0);
+}
+
+
+/* Add a symbol to the subroutine list where the subroutine takes
+   1 arguments, specifying the intent of the argument.  */
+
+static void
+add_sym_1s (const char *name, gfc_isym_id id, enum klass cl, bt type, int kind,
+	    int standard, gfc_try (*check) (gfc_expr *),
+	    gfc_expr *(*simplify) (gfc_expr *), void (*resolve) (gfc_code *),
+	    const char *a1, bt type1, int kind1, int optional1,
+	    sym_intent intent1)
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f1 = check;
+  sf.f1 = simplify;
+  rf.s1 = resolve;
+
+  add_sym (name, id, cl, ACTUAL_NO, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, intent1,
+	   (void *) 0);
+}
+
+
+/* Add a symbol from the MAX/MIN family of intrinsic functions to the
+   function.  MAX et al take 2 or more arguments.  */
+
+static void
+add_sym_1m (const char *name, gfc_isym_id id, enum klass cl, int actual_ok, bt type,
+	    int kind, int standard,
+	    gfc_try (*check) (gfc_actual_arglist *),
+	    gfc_expr *(*simplify) (gfc_expr *),
+	    void (*resolve) (gfc_expr *, gfc_actual_arglist *),
+	    const char *a1, bt type1, int kind1, int optional1,
+	    const char *a2, bt type2, int kind2, int optional2)
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f1m = check;
+  sf.f1 = simplify;
+  rf.f1m = resolve;
+
+  add_sym (name, id, cl, actual_ok, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, INTENT_IN,
+	   a2, type2, kind2, optional2, INTENT_IN,
+	   (void *) 0);
+}
+
+
+/* Add a symbol to the function list where the function takes
+   2 arguments.  */
+
+static void
+add_sym_2 (const char *name, gfc_isym_id id, enum klass cl, int actual_ok, bt type,
+	   int kind, int standard,
+	   gfc_try (*check) (gfc_expr *, gfc_expr *),
+	   gfc_expr *(*simplify) (gfc_expr *, gfc_expr *),
+	   void (*resolve) (gfc_expr *, gfc_expr *, gfc_expr *),
+	   const char *a1, bt type1, int kind1, int optional1,
+	   const char *a2, bt type2, int kind2, int optional2)
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f2 = check;
+  sf.f2 = simplify;
+  rf.f2 = resolve;
+
+  add_sym (name, id, cl, actual_ok, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, INTENT_IN,
+	   a2, type2, kind2, optional2, INTENT_IN,
+	   (void *) 0);
+}
+
+
+/* Add a symbol to the function list where the function takes
+   2 arguments; same as add_sym_2 - but allows to specify the intent.  */
+
+static void
+add_sym_2_intent (const char *name, gfc_isym_id id, enum klass cl,
+		  int actual_ok, bt type, int kind, int standard,
+		  gfc_try (*check) (gfc_expr *, gfc_expr *),
+		  gfc_expr *(*simplify) (gfc_expr *, gfc_expr *),
+		  void (*resolve) (gfc_expr *, gfc_expr *, gfc_expr *),
+		  const char *a1, bt type1, int kind1, int optional1,
+		  sym_intent intent1, const char *a2, bt type2, int kind2,
+		  int optional2, sym_intent intent2)
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f2 = check;
+  sf.f2 = simplify;
+  rf.f2 = resolve;
+
+  add_sym (name, id, cl, actual_ok, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, intent1,
+	   a2, type2, kind2, optional2, intent2,
+	   (void *) 0);
+}
+
+
+/* Add a symbol to the subroutine list where the subroutine takes
+   2 arguments, specifying the intent of the arguments.  */
+
+static void
+add_sym_2s (const char *name, gfc_isym_id id, enum klass cl, bt type,
+	    int kind, int standard,
+	    gfc_try (*check) (gfc_expr *, gfc_expr *),
+	    gfc_expr *(*simplify) (gfc_expr *, gfc_expr *),
+	    void (*resolve) (gfc_code *),
+	    const char *a1, bt type1, int kind1, int optional1,
+	    sym_intent intent1, const char *a2, bt type2, int kind2,
+	    int optional2, sym_intent intent2)
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f2 = check;
+  sf.f2 = simplify;
+  rf.s1 = resolve;
+
+  add_sym (name, id, cl, ACTUAL_NO, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, intent1,
+	   a2, type2, kind2, optional2, intent2,
+	   (void *) 0);
+}
+
+
+/* Add a symbol to the function list where the function takes
+   3 arguments.  */
+
+static void
+add_sym_3 (const char *name, gfc_isym_id id, enum klass cl, int actual_ok, bt type,
+	   int kind, int standard,
+	   gfc_try (*check) (gfc_expr *, gfc_expr *, gfc_expr *),
+	   gfc_expr *(*simplify) (gfc_expr *, gfc_expr *, gfc_expr *),
+	   void (*resolve) (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *),
+	   const char *a1, bt type1, int kind1, int optional1,
+	   const char *a2, bt type2, int kind2, int optional2,
+	   const char *a3, bt type3, int kind3, int optional3)
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f3 = check;
+  sf.f3 = simplify;
+  rf.f3 = resolve;
+
+  add_sym (name, id, cl, actual_ok, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, INTENT_IN,
+	   a2, type2, kind2, optional2, INTENT_IN,
+	   a3, type3, kind3, optional3, INTENT_IN,
+	   (void *) 0);
+}
+
+
+/* MINLOC and MAXLOC get special treatment because their argument
+   might have to be reordered.  */
+
+static void
+add_sym_3ml (const char *name, gfc_isym_id id, enum klass cl, int actual_ok, bt type,
+	     int kind, int standard,
+	     gfc_try (*check) (gfc_actual_arglist *),
+	     gfc_expr *(*simplify) (gfc_expr *, gfc_expr *, gfc_expr *),
+	     void (*resolve) (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *),
+	     const char *a1, bt type1, int kind1, int optional1,
+	     const char *a2, bt type2, int kind2, int optional2,
+	     const char *a3, bt type3, int kind3, int optional3)
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f3ml = check;
+  sf.f3 = simplify;
+  rf.f3 = resolve;
+
+  add_sym (name, id, cl, actual_ok, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, INTENT_IN,
+	   a2, type2, kind2, optional2, INTENT_IN,
+	   a3, type3, kind3, optional3, INTENT_IN,
+	   (void *) 0);
+}
+
+
+/* MINVAL, MAXVAL, PRODUCT, and SUM also get special treatment because
+   their argument also might have to be reordered.  */
+
+static void
+add_sym_3red (const char *name, gfc_isym_id id, enum klass cl, int actual_ok, bt type,
+	      int kind, int standard,
+	      gfc_try (*check) (gfc_actual_arglist *),
+	      gfc_expr *(*simplify) (gfc_expr *, gfc_expr *, gfc_expr *),
+	      void (*resolve) (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *),
+	      const char *a1, bt type1, int kind1, int optional1,
+	      const char *a2, bt type2, int kind2, int optional2,
+	      const char *a3, bt type3, int kind3, int optional3)
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f3red = check;
+  sf.f3 = simplify;
+  rf.f3 = resolve;
+
+  add_sym (name, id, cl, actual_ok, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, INTENT_IN,
+	   a2, type2, kind2, optional2, INTENT_IN,
+	   a3, type3, kind3, optional3, INTENT_IN,
+	   (void *) 0);
+}
+
+
+/* Add a symbol to the subroutine list where the subroutine takes
+   3 arguments, specifying the intent of the arguments.  */
+
+static void
+add_sym_3s (const char *name, gfc_isym_id id, enum klass cl, bt type,
+	    int kind, int standard,
+	    gfc_try (*check) (gfc_expr *, gfc_expr *, gfc_expr *),
+	    gfc_expr *(*simplify) (gfc_expr *, gfc_expr *, gfc_expr *),
+	    void (*resolve) (gfc_code *),
+	    const char *a1, bt type1, int kind1, int optional1,
+	    sym_intent intent1, const char *a2, bt type2, int kind2,
+	    int optional2, sym_intent intent2, const char *a3, bt type3,
+	    int kind3, int optional3, sym_intent intent3)
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f3 = check;
+  sf.f3 = simplify;
+  rf.s1 = resolve;
+
+  add_sym (name, id, cl, ACTUAL_NO, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, intent1,
+	   a2, type2, kind2, optional2, intent2,
+	   a3, type3, kind3, optional3, intent3,
+	   (void *) 0);
+}
+
+
+/* Add a symbol to the function list where the function takes
+   4 arguments.  */
+
+static void
+add_sym_4 (const char *name, gfc_isym_id id, enum klass cl, int actual_ok, bt type,
+	   int kind, int standard,
+	   gfc_try (*check) (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *),
+	   gfc_expr *(*simplify) (gfc_expr *, gfc_expr *, gfc_expr *,
+				  gfc_expr *),
+	   void (*resolve) (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *,
+			    gfc_expr *),
+	   const char *a1, bt type1, int kind1, int optional1,
+	   const char *a2, bt type2, int kind2, int optional2,
+	   const char *a3, bt type3, int kind3, int optional3,
+	   const char *a4, bt type4, int kind4, int optional4 )
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f4 = check;
+  sf.f4 = simplify;
+  rf.f4 = resolve;
+
+  add_sym (name, id, cl, actual_ok, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, INTENT_IN,
+	   a2, type2, kind2, optional2, INTENT_IN,
+	   a3, type3, kind3, optional3, INTENT_IN,
+	   a4, type4, kind4, optional4, INTENT_IN,
+	   (void *) 0);
+}
+
+
+/* Add a symbol to the subroutine list where the subroutine takes
+   4 arguments.  */
+
+static void
+add_sym_4s (const char *name, gfc_isym_id id, enum klass cl, bt type, int kind,
+	    int standard,
+	    gfc_try (*check) (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *),
+	    gfc_expr *(*simplify) (gfc_expr *, gfc_expr *, gfc_expr *,
+				   gfc_expr *),
+	    void (*resolve) (gfc_code *),
+	    const char *a1, bt type1, int kind1, int optional1,
+	    sym_intent intent1, const char *a2, bt type2, int kind2,
+	    int optional2, sym_intent intent2, const char *a3, bt type3,
+	    int kind3, int optional3, sym_intent intent3, const char *a4,
+	    bt type4, int kind4, int optional4, sym_intent intent4)
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f4 = check;
+  sf.f4 = simplify;
+  rf.s1 = resolve;
+
+  add_sym (name, id, cl, ACTUAL_NO, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, intent1,
+	   a2, type2, kind2, optional2, intent2,
+	   a3, type3, kind3, optional3, intent3,
+	   a4, type4, kind4, optional4, intent4,
+	   (void *) 0);
+}
+
+
+/* Add a symbol to the subroutine list where the subroutine takes
+   5 arguments.  */
+
+static void
+add_sym_5s (const char *name, gfc_isym_id id, enum klass cl, bt type, int kind,
+	    int standard,
+	    gfc_try (*check) (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *,
+			  gfc_expr *),
+	    gfc_expr *(*simplify) (gfc_expr *, gfc_expr *, gfc_expr *,
+				   gfc_expr *, gfc_expr *),
+	    void (*resolve) (gfc_code *),
+	    const char *a1, bt type1, int kind1, int optional1,
+	    sym_intent intent1, const char *a2, bt type2, int kind2,
+	    int optional2, sym_intent intent2, const char *a3, bt type3,
+	    int kind3, int optional3, sym_intent intent3, const char *a4,
+	    bt type4, int kind4, int optional4, sym_intent intent4,
+	    const char *a5, bt type5, int kind5, int optional5,
+	    sym_intent intent5) 
+{
+  gfc_check_f cf;
+  gfc_simplify_f sf;
+  gfc_resolve_f rf;
+
+  cf.f5 = check;
+  sf.f5 = simplify;
+  rf.s1 = resolve;
+
+  add_sym (name, id, cl, ACTUAL_NO, type, kind, standard, cf, sf, rf,
+	   a1, type1, kind1, optional1, intent1,
+	   a2, type2, kind2, optional2, intent2,
+	   a3, type3, kind3, optional3, intent3,
+	   a4, type4, kind4, optional4, intent4,
+	   a5, type5, kind5, optional5, intent5,
+	   (void *) 0);
+}
+
+
+/* Locate an intrinsic symbol given a base pointer, number of elements
+   in the table and a pointer to a name.  Returns the NULL pointer if
+   a name is not found.  */
+
+static gfc_intrinsic_sym *
+find_sym (gfc_intrinsic_sym *start, int n, const char *name)
+{
+  /* name may be a user-supplied string, so we must first make sure
+     that we're comparing against a pointer into the global string
+     table.  */
+  const char *p = gfc_get_string (name);
+
+  while (n > 0)
+    {
+      if (p == start->name)
+	return start;
+
+      start++;
+      n--;
+    }
+
+  return NULL;
+}
+
+
+gfc_intrinsic_sym *
+gfc_intrinsic_function_by_id (gfc_isym_id id)
+{
+  gfc_intrinsic_sym *start = functions;
+  int n = nfunc;
+
+  while (true)
+    {
+      gcc_assert (n > 0);
+      if (id == start->id)
+	return start;
+
+      start++;
+      n--;
+    }
+}
+
+
+/* Given a name, find a function in the intrinsic function table.
+   Returns NULL if not found.  */
+
+gfc_intrinsic_sym *
+gfc_find_function (const char *name)
+{
+  gfc_intrinsic_sym *sym;
+
+  sym = find_sym (functions, nfunc, name);
+  if (!sym || sym->from_module)
+    sym = find_sym (conversion, nconv, name);
+
+  return (!sym || sym->from_module) ? NULL : sym;
+}
+
+
+/* Given a name, find a function in the intrinsic subroutine table.
+   Returns NULL if not found.  */
+
+gfc_intrinsic_sym *
+gfc_find_subroutine (const char *name)
+{
+  gfc_intrinsic_sym *sym;
+  sym = find_sym (subroutines, nsub, name);
+  return (!sym || sym->from_module) ? NULL : sym;
+}
+
+
+/* Given a string, figure out if it is the name of a generic intrinsic
+   function or not.  */
+
+int
+gfc_generic_intrinsic (const char *name)
+{
+  gfc_intrinsic_sym *sym;
+
+  sym = gfc_find_function (name);
+  return (!sym || sym->from_module) ? 0 : sym->generic;
+}
+
+
+/* Given a string, figure out if it is the name of a specific
+   intrinsic function or not.  */
+
+int
+gfc_specific_intrinsic (const char *name)
+{
+  gfc_intrinsic_sym *sym;
+
+  sym = gfc_find_function (name);
+  return (!sym || sym->from_module) ? 0 : sym->specific;
+}
+
+
+/* Given a string, figure out if it is the name of an intrinsic function
+   or subroutine allowed as an actual argument or not.  */
+int
+gfc_intrinsic_actual_ok (const char *name, const bool subroutine_flag)
+{
+  gfc_intrinsic_sym *sym;
+
+  /* Intrinsic subroutines are not allowed as actual arguments.  */
+  if (subroutine_flag)
+    return 0;
+  else
+    {
+      sym = gfc_find_function (name);
+      return (sym == NULL) ? 0 : sym->actual_ok;
+    }
+}
+
+
+/* Given a symbol, find out if it is (and is to be treated) an intrinsic.  If
+   it's name refers to an intrinsic but this intrinsic is not included in the
+   selected standard, this returns FALSE and sets the symbol's external
+   attribute.  */
+
+bool
+gfc_is_intrinsic (gfc_symbol* sym, int subroutine_flag, locus loc)
+{
+  gfc_intrinsic_sym* isym;
+  const char* symstd;
+
+  /* If INTRINSIC/EXTERNAL state is already known, return.  */
+  if (sym->attr.intrinsic)
+    return true;
+  if (sym->attr.external)
+    return false;
+
+  if (subroutine_flag)
+    isym = gfc_find_subroutine (sym->name);
+  else
+    isym = gfc_find_function (sym->name);
+
+  /* No such intrinsic available at all?  */
+  if (!isym)
+    return false;
+
+  /* See if this intrinsic is allowed in the current standard.  */
+  if (gfc_check_intrinsic_standard (isym, &symstd, false, loc) == FAILURE)
+    {
+      if (sym->attr.proc == PROC_UNKNOWN
+	  && gfc_option.warn_intrinsics_std)
+	gfc_warning_now ("The intrinsic '%s' at %L is not included in the"
+			 " selected standard but %s and '%s' will be"
+			 " treated as if declared EXTERNAL.  Use an"
+			 " appropriate -std=* option or define"
+			 " -fall-intrinsics to allow this intrinsic.",
+			 sym->name, &loc, symstd, sym->name);
+
+      return false;
+    }
+
+  return true;
+}
+
+
+/* Collect a set of intrinsic functions into a generic collection.
+   The first argument is the name of the generic function, which is
+   also the name of a specific function.  The rest of the specifics
+   currently in the table are placed into the list of specific
+   functions associated with that generic.
+
+   PR fortran/32778
+   FIXME: Remove the argument STANDARD if no regressions are
+          encountered. Change all callers (approx. 360).
+*/
+
+static void
+make_generic (const char *name, gfc_isym_id id, int standard ATTRIBUTE_UNUSED)
+{
+  gfc_intrinsic_sym *g;
+
+  if (sizing != SZ_NOTHING)
+    return;
+
+  g = gfc_find_function (name);
+  if (g == NULL)
+    gfc_internal_error ("make_generic(): Can't find generic symbol '%s'",
+			name);
+
+  gcc_assert (g->id == id);
+
+  g->generic = 1;
+  g->specific = 1;
+  if ((g + 1)->name != NULL)
+    g->specific_head = g + 1;
+  g++;
+
+  while (g->name != NULL)
+    {
+      g->next = g + 1;
+      g->specific = 1;
+      g++;
+    }
+
+  g--;
+  g->next = NULL;
+}
+
+
+/* Create a duplicate intrinsic function entry for the current
+   function, the only differences being the alternate name and
+   a different standard if necessary. Note that we use argument
+   lists more than once, but all argument lists are freed as a
+   single block.  */
+
+static void
+make_alias (const char *name, int standard)
+{
+  switch (sizing)
+    {
+    case SZ_FUNCS:
+      nfunc++;
+      break;
+
+    case SZ_SUBS:
+      nsub++;
+      break;
+
+    case SZ_NOTHING:
+      next_sym[0] = next_sym[-1];
+      next_sym->name = gfc_get_string (name);
+      next_sym->standard = standard;
+      next_sym++;
+      break;
+
+    default:
+      break;
+    }
+}
+
+
+/* Make the current subroutine noreturn.  */
+
+static void
+make_noreturn (void)
+{
+  if (sizing == SZ_NOTHING)
+    next_sym[-1].noreturn = 1;
+}
+
+
+/* Mark current intrinsic as module intrinsic.  */
+static void
+make_from_module (void)
+{
+  if (sizing == SZ_NOTHING)
+    next_sym[-1].from_module = 1;
+}
+
+/* Set the attr.value of the current procedure.  */
+
+static void
+set_attr_value (int n, ...)
+{
+  gfc_intrinsic_arg *arg;
+  va_list argp;
+  int i;
+
+  if (sizing != SZ_NOTHING)
+    return;
+
+  va_start (argp, n);
+  arg = next_sym[-1].formal;
+
+  for (i = 0; i < n; i++)
+    {
+      gcc_assert (arg != NULL);
+      arg->value = va_arg (argp, int);
+      arg = arg->next;
+    }
+  va_end (argp);
+}
+
+
+/* Add intrinsic functions.  */
+
+static void
+add_functions (void)
+{
+  /* Argument names as in the standard (to be used as argument keywords).  */
+  const char
+    *a = "a", *f = "field", *pt = "pointer", *tg = "target",
+    *b = "b", *m = "matrix", *ma = "matrix_a", *mb = "matrix_b",
+    *c = "c", *n = "n", *ncopies= "ncopies", *pos = "pos", *bck = "back",
+    *i = "i", *v = "vector", *va = "vector_a", *vb = "vector_b",
+    *j = "j", *a1 = "a1", *fs = "fsource", *ts = "tsource",
+    *l = "l", *a2 = "a2", *mo = "mold", *ord = "order",
+    *p = "p", *ar = "array", *shp = "shape", *src = "source",
+    *r = "r", *bd = "boundary", *pad = "pad", *set = "set",
+    *s = "s", *dm = "dim", *kind = "kind", *msk = "mask",
+    *x = "x", *sh = "shift", *stg = "string", *ssg = "substring",
+    *y = "y", *sz = "size", *sta = "string_a", *stb = "string_b",
+    *z = "z", *ln = "len", *ut = "unit", *han = "handler",
+    *num = "number", *tm = "time", *nm = "name", *md = "mode",
+    *vl = "values", *p1 = "path1", *p2 = "path2", *com = "command",
+    *ca = "coarray", *sub = "sub";
+
+  int di, dr, dd, dl, dc, dz, ii;
+
+  di = gfc_default_integer_kind;
+  dr = gfc_default_real_kind;
+  dd = gfc_default_double_kind;
+  dl = gfc_default_logical_kind;
+  dc = gfc_default_character_kind;
+  dz = gfc_default_complex_kind;
+  ii = gfc_index_integer_kind;
+
+  add_sym_1 ("abs", GFC_ISYM_ABS, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_abs, gfc_simplify_abs, gfc_resolve_abs,
+	     a, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("iabs", GFC_ISYM_ABS, CLASS_ELEMENTAL, ACTUAL_YES, BT_INTEGER, di, GFC_STD_F77,
+	     NULL, gfc_simplify_abs, gfc_resolve_abs,
+	     a, BT_INTEGER, di, REQUIRED);
+
+  add_sym_1 ("dabs", GFC_ISYM_ABS, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_abs, gfc_resolve_abs,
+	     a, BT_REAL, dd, REQUIRED);
+
+  add_sym_1 ("cabs", GFC_ISYM_ABS, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     NULL, gfc_simplify_abs, gfc_resolve_abs,
+	     a, BT_COMPLEX, dz, REQUIRED);
+
+  add_sym_1 ("zabs", GFC_ISYM_ABS, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_GNU, 
+	     NULL, gfc_simplify_abs, gfc_resolve_abs, 
+	     a, BT_COMPLEX, dd, REQUIRED);
+
+  make_alias ("cdabs", GFC_STD_GNU);
+
+  make_generic ("abs", GFC_ISYM_ABS, GFC_STD_F77);
+
+  /* The checking function for ACCESS is called gfc_check_access_func
+     because the name gfc_check_access is already used in module.c.  */
+  add_sym_2 ("access", GFC_ISYM_ACCESS, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, gfc_check_access_func, NULL, gfc_resolve_access,
+	     nm, BT_CHARACTER, dc, REQUIRED, md, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("access", GFC_ISYM_ACCESS, GFC_STD_GNU);
+
+  add_sym_2 ("achar", GFC_ISYM_ACHAR, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_CHARACTER, dc, GFC_STD_F95,
+	     gfc_check_achar, gfc_simplify_achar, gfc_resolve_achar,
+	     i, BT_INTEGER, di, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("achar", GFC_ISYM_ACHAR, GFC_STD_F95);
+
+  add_sym_1 ("acos", GFC_ISYM_ACOS, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_rc2008, gfc_simplify_acos, gfc_resolve_acos,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dacos", GFC_ISYM_ACOS, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_acos, gfc_resolve_acos,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("acos", GFC_ISYM_ACOS, GFC_STD_F77);
+
+  add_sym_1 ("acosh", GFC_ISYM_ACOSH, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr,
+	     GFC_STD_F2008, gfc_check_fn_rc2008, gfc_simplify_acosh,
+	     gfc_resolve_acosh, x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dacosh", GFC_ISYM_ACOSH, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_GNU,
+	     gfc_check_fn_d, gfc_simplify_acosh, gfc_resolve_acosh,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("acosh", GFC_ISYM_ACOSH, GFC_STD_F2008);
+
+  add_sym_1 ("adjustl", GFC_ISYM_ADJUSTL, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_CHARACTER, dc, GFC_STD_F95, NULL, gfc_simplify_adjustl,
+	     gfc_resolve_adjustl, stg, BT_CHARACTER, 0, REQUIRED);
+
+  make_generic ("adjustl", GFC_ISYM_ADJUSTL, GFC_STD_F95);
+
+  add_sym_1 ("adjustr", GFC_ISYM_ADJUSTR, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_CHARACTER, dc, GFC_STD_F95, NULL, gfc_simplify_adjustr,
+	     gfc_resolve_adjustr, stg, BT_CHARACTER, 0, REQUIRED);
+
+  make_generic ("adjustr", GFC_ISYM_ADJUSTR, GFC_STD_F95);
+
+  add_sym_1 ("aimag", GFC_ISYM_AIMAG, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_c, gfc_simplify_aimag, gfc_resolve_aimag,
+	     z, BT_COMPLEX, dz, REQUIRED);
+
+  make_alias ("imag", GFC_STD_GNU);
+  make_alias ("imagpart", GFC_STD_GNU);
+
+  add_sym_1 ("dimag", GFC_ISYM_AIMAG, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_GNU, 
+	     NULL, gfc_simplify_aimag, gfc_resolve_aimag, 
+	     z, BT_COMPLEX, dd, REQUIRED);
+
+  make_generic ("aimag", GFC_ISYM_AIMAG, GFC_STD_F77);
+
+  add_sym_2 ("aint", GFC_ISYM_AINT, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_a_xkind, gfc_simplify_aint, gfc_resolve_aint,
+	     a, BT_REAL, dr, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  add_sym_1 ("dint", GFC_ISYM_AINT, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     NULL, gfc_simplify_dint, gfc_resolve_dint,
+	     a, BT_REAL, dd, REQUIRED);
+
+  make_generic ("aint", GFC_ISYM_AINT, GFC_STD_F77);
+
+  add_sym_2 ("all", GFC_ISYM_ALL, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_LOGICAL, dl, GFC_STD_F95,
+	     gfc_check_all_any, gfc_simplify_all, gfc_resolve_all,
+	     msk, BT_LOGICAL, dl, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL);
+
+  make_generic ("all", GFC_ISYM_ALL, GFC_STD_F95);
+
+  add_sym_1 ("allocated", GFC_ISYM_ALLOCATED, CLASS_INQUIRY, ACTUAL_NO, BT_LOGICAL, dl, GFC_STD_F95,
+	     gfc_check_allocated, NULL, NULL,
+	     ar, BT_UNKNOWN, 0, REQUIRED);
+
+  make_generic ("allocated", GFC_ISYM_ALLOCATED, GFC_STD_F95);
+
+  add_sym_2 ("anint", GFC_ISYM_ANINT, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_a_xkind, gfc_simplify_anint, gfc_resolve_anint,
+	     a, BT_REAL, dr, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  add_sym_1 ("dnint", GFC_ISYM_ANINT, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     NULL, gfc_simplify_dnint, gfc_resolve_dnint,
+	     a, BT_REAL, dd, REQUIRED);
+
+  make_generic ("anint", GFC_ISYM_ANINT, GFC_STD_F77);
+
+  add_sym_2 ("any", GFC_ISYM_ANY, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_LOGICAL, dl, GFC_STD_F95,
+	     gfc_check_all_any, gfc_simplify_any, gfc_resolve_any,
+	     msk, BT_LOGICAL, dl, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL);
+
+  make_generic ("any", GFC_ISYM_ANY, GFC_STD_F95);
+
+  add_sym_1 ("asin", GFC_ISYM_ASIN, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_rc2008, gfc_simplify_asin, gfc_resolve_asin,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dasin", GFC_ISYM_ASIN, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_asin, gfc_resolve_asin,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("asin", GFC_ISYM_ASIN, GFC_STD_F77);
+  
+  add_sym_1 ("asinh", GFC_ISYM_ASINH, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr,
+	     GFC_STD_F2008, gfc_check_fn_rc2008, gfc_simplify_asinh,
+	     gfc_resolve_asinh, x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dasinh", GFC_ISYM_ASINH, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_GNU,
+	     gfc_check_fn_d, gfc_simplify_asinh, gfc_resolve_asinh,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("asinh", GFC_ISYM_ASINH, GFC_STD_F2008);
+
+  add_sym_2 ("associated", GFC_ISYM_ASSOCIATED, CLASS_INQUIRY, ACTUAL_NO, BT_LOGICAL, dl,
+	     GFC_STD_F95, gfc_check_associated, NULL, NULL,
+	     pt, BT_UNKNOWN, 0, REQUIRED, tg, BT_UNKNOWN, 0, OPTIONAL);
+
+  make_generic ("associated", GFC_ISYM_ASSOCIATED, GFC_STD_F95);
+
+  add_sym_1 ("atan", GFC_ISYM_ATAN, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_rc2008, gfc_simplify_atan, gfc_resolve_atan,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("datan", GFC_ISYM_ATAN, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_atan, gfc_resolve_atan,
+	     x, BT_REAL, dd, REQUIRED);
+
+  /* Two-argument version of atan, equivalent to atan2.  */
+  add_sym_2 ("atan", GFC_ISYM_ATAN2, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F2008,
+	     gfc_check_atan_2, gfc_simplify_atan2, gfc_resolve_atan2,
+	     y, BT_REAL, dr, REQUIRED, x, BT_REAL, dr, REQUIRED);
+
+  make_generic ("atan", GFC_ISYM_ATAN, GFC_STD_F77);
+  
+  add_sym_1 ("atanh", GFC_ISYM_ATANH, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr,
+	     GFC_STD_F2008, gfc_check_fn_rc2008, gfc_simplify_atanh,
+	     gfc_resolve_atanh, x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("datanh", GFC_ISYM_ATANH, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_GNU,
+	     gfc_check_fn_d, gfc_simplify_atanh, gfc_resolve_atanh,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("atanh", GFC_ISYM_ATANH, GFC_STD_F2008);
+
+  add_sym_2 ("atan2", GFC_ISYM_ATAN2, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_atan2, gfc_simplify_atan2, gfc_resolve_atan2,
+	     y, BT_REAL, dr, REQUIRED, x, BT_REAL, dr, REQUIRED);
+
+  add_sym_2 ("datan2", GFC_ISYM_ATAN2, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_datan2, gfc_simplify_atan2, gfc_resolve_atan2,
+	     y, BT_REAL, dd, REQUIRED, x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("atan2", GFC_ISYM_ATAN2, GFC_STD_F77);
+  
+  /* Bessel and Neumann functions for G77 compatibility.  */
+  add_sym_1 ("besj0", GFC_ISYM_J0, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_GNU,
+	     gfc_check_fn_r, gfc_simplify_bessel_j0, gfc_resolve_g77_math1,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_alias ("bessel_j0", GFC_STD_F2008);
+
+  add_sym_1 ("dbesj0", GFC_ISYM_J0, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd, GFC_STD_GNU,
+	     gfc_check_fn_d, gfc_simplify_bessel_j0, gfc_resolve_g77_math1,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("bessel_j0", GFC_ISYM_J0, GFC_STD_F2008);
+
+  add_sym_1 ("besj1", GFC_ISYM_J1, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_GNU,
+	     gfc_check_fn_r, gfc_simplify_bessel_j1, gfc_resolve_g77_math1,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_alias ("bessel_j1", GFC_STD_F2008);
+
+  add_sym_1 ("dbesj1", GFC_ISYM_J1, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd, GFC_STD_GNU,
+	     gfc_check_fn_d, gfc_simplify_bessel_j1, gfc_resolve_g77_math1,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("bessel_j1", GFC_ISYM_J1, GFC_STD_F2008);
+
+  add_sym_2 ("besjn", GFC_ISYM_JN, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_GNU,
+	     gfc_check_besn, gfc_simplify_bessel_jn, gfc_resolve_besn,
+	     n, BT_INTEGER, di, REQUIRED, x, BT_REAL, dr, REQUIRED);
+
+  make_alias ("bessel_jn", GFC_STD_F2008);
+
+  add_sym_2 ("dbesjn", GFC_ISYM_JN, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd, GFC_STD_GNU,
+	     gfc_check_besn, gfc_simplify_bessel_jn, gfc_resolve_besn,
+	     n, BT_INTEGER, di, REQUIRED, x, BT_REAL, dd, REQUIRED);
+
+  add_sym_3 ("bessel_jn", GFC_ISYM_JN2, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F2008,
+	     gfc_check_bessel_n2, gfc_simplify_bessel_jn2, gfc_resolve_bessel_n2,
+	     "n1", BT_INTEGER, di, REQUIRED,"n2", BT_INTEGER, di, REQUIRED,
+	     x, BT_REAL, dr, REQUIRED);
+  set_attr_value (3, true, true, true);
+
+  make_generic ("bessel_jn", GFC_ISYM_JN, GFC_STD_F2008);
+
+  add_sym_1 ("besy0", GFC_ISYM_Y0, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_GNU,
+	     gfc_check_fn_r, gfc_simplify_bessel_y0, gfc_resolve_g77_math1,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_alias ("bessel_y0", GFC_STD_F2008);
+
+  add_sym_1 ("dbesy0", GFC_ISYM_Y0, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd, GFC_STD_GNU,
+	     gfc_check_fn_d, gfc_simplify_bessel_y0, gfc_resolve_g77_math1,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("bessel_y0", GFC_ISYM_Y0, GFC_STD_F2008);
+
+  add_sym_1 ("besy1", GFC_ISYM_Y1, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_GNU,
+	     gfc_check_fn_r, gfc_simplify_bessel_y1, gfc_resolve_g77_math1,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_alias ("bessel_y1", GFC_STD_F2008);
+
+  add_sym_1 ("dbesy1", GFC_ISYM_Y1, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd, GFC_STD_GNU,
+	     gfc_check_fn_d, gfc_simplify_bessel_y1, gfc_resolve_g77_math1,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("bessel_y1", GFC_ISYM_Y1, GFC_STD_F2008);
+
+  add_sym_2 ("besyn", GFC_ISYM_YN, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_GNU,
+	     gfc_check_besn, gfc_simplify_bessel_yn, gfc_resolve_besn,
+	     n, BT_INTEGER, di, REQUIRED, x, BT_REAL, dr, REQUIRED);
+
+  make_alias ("bessel_yn", GFC_STD_F2008);
+
+  add_sym_2 ("dbesyn", GFC_ISYM_YN, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd, GFC_STD_GNU,
+	     gfc_check_besn, gfc_simplify_bessel_yn, gfc_resolve_besn,
+	     n, BT_INTEGER, di, REQUIRED, x, BT_REAL, dd, REQUIRED);
+
+  add_sym_3 ("bessel_yn", GFC_ISYM_YN2, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F2008,
+	     gfc_check_bessel_n2, gfc_simplify_bessel_yn2, gfc_resolve_bessel_n2,
+	     "n1", BT_INTEGER, di, REQUIRED,"n2", BT_INTEGER, di, REQUIRED,
+	      x, BT_REAL, dr, REQUIRED);
+  set_attr_value (3, true, true, true);
+
+  make_generic ("bessel_yn", GFC_ISYM_YN, GFC_STD_F2008);
+
+  add_sym_2 ("bge", GFC_ISYM_BGE, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_LOGICAL, dl, GFC_STD_F2008,
+	     gfc_check_bge_bgt_ble_blt, gfc_simplify_bge, NULL,
+	     i, BT_INTEGER, di, REQUIRED, j, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("bge", GFC_ISYM_BGE, GFC_STD_F2008);
+
+  add_sym_2 ("bgt", GFC_ISYM_BGT, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_LOGICAL, dl, GFC_STD_F2008,
+	     gfc_check_bge_bgt_ble_blt, gfc_simplify_bgt, NULL,
+	     i, BT_INTEGER, di, REQUIRED, j, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("bgt", GFC_ISYM_BGT, GFC_STD_F2008);
+
+  add_sym_1 ("bit_size", GFC_ISYM_BIT_SIZE, CLASS_INQUIRY, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_i, gfc_simplify_bit_size, NULL,
+	     i, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("bit_size", GFC_ISYM_BIT_SIZE, GFC_STD_F95);
+
+  add_sym_2 ("ble", GFC_ISYM_BLE, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_LOGICAL, dl, GFC_STD_F2008,
+	     gfc_check_bge_bgt_ble_blt, gfc_simplify_ble, NULL,
+	     i, BT_INTEGER, di, REQUIRED, j, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("ble", GFC_ISYM_BLE, GFC_STD_F2008);
+
+  add_sym_2 ("blt", GFC_ISYM_BLT, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_LOGICAL, dl, GFC_STD_F2008,
+	     gfc_check_bge_bgt_ble_blt, gfc_simplify_blt, NULL,
+	     i, BT_INTEGER, di, REQUIRED, j, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("blt", GFC_ISYM_BLT, GFC_STD_F2008);
+
+  add_sym_2 ("btest", GFC_ISYM_BTEST, CLASS_ELEMENTAL, ACTUAL_NO, BT_LOGICAL, dl, GFC_STD_F95,
+	     gfc_check_bitfcn, gfc_simplify_btest, gfc_resolve_btest,
+	     i, BT_INTEGER, di, REQUIRED, pos, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("btest", GFC_ISYM_BTEST, GFC_STD_F95);
+
+  add_sym_2 ("ceiling", GFC_ISYM_CEILING, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_a_ikind, gfc_simplify_ceiling, gfc_resolve_ceiling,
+	     a, BT_REAL, dr, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("ceiling", GFC_ISYM_CEILING, GFC_STD_F95);
+
+  add_sym_2 ("char", GFC_ISYM_CHAR, CLASS_ELEMENTAL, ACTUAL_NO, BT_CHARACTER, dc, GFC_STD_F77,
+	     gfc_check_char, gfc_simplify_char, gfc_resolve_char,
+	     i, BT_INTEGER, di, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("char", GFC_ISYM_CHAR, GFC_STD_F77);
+
+  add_sym_1 ("chdir", GFC_ISYM_CHDIR, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER, di,
+	     GFC_STD_GNU, gfc_check_chdir, NULL, gfc_resolve_chdir,
+	     nm, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("chdir", GFC_ISYM_CHDIR, GFC_STD_GNU);
+
+  add_sym_2 ("chmod", GFC_ISYM_CHMOD, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, gfc_check_chmod, NULL, gfc_resolve_chmod,
+	     nm, BT_CHARACTER, dc, REQUIRED, md, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("chmod", GFC_ISYM_CHMOD, GFC_STD_GNU);
+
+  add_sym_3 ("cmplx", GFC_ISYM_CMPLX, CLASS_ELEMENTAL, ACTUAL_NO, BT_COMPLEX, dz, GFC_STD_F77,
+	     gfc_check_cmplx, gfc_simplify_cmplx, gfc_resolve_cmplx,
+	     x, BT_UNKNOWN, dr, REQUIRED, y, BT_UNKNOWN, dr, OPTIONAL,
+	     kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("cmplx", GFC_ISYM_CMPLX, GFC_STD_F77);
+
+  add_sym_0 ("command_argument_count", GFC_ISYM_COMMAND_ARGUMENT_COUNT, CLASS_INQUIRY, 
+	     ACTUAL_NO, BT_INTEGER, di, GFC_STD_F2003, NULL, NULL, NULL);
+
+  make_generic ("command_argument_count", GFC_ISYM_COMMAND_ARGUMENT_COUNT,
+		GFC_STD_F2003);
+
+  add_sym_2 ("complex", GFC_ISYM_COMPLEX, CLASS_ELEMENTAL, ACTUAL_NO, BT_COMPLEX, dz, GFC_STD_GNU,
+	     gfc_check_complex, gfc_simplify_complex, gfc_resolve_complex,
+	     x, BT_UNKNOWN, dr, REQUIRED, y, BT_UNKNOWN, dr, REQUIRED);
+
+  make_generic ("complex", GFC_ISYM_COMPLEX, GFC_STD_GNU);
+
+  /* Making dcmplx a specific of cmplx causes cmplx to return a double
+     complex instead of the default complex.  */
+
+  add_sym_2 ("dcmplx", GFC_ISYM_CMPLX, CLASS_ELEMENTAL, ACTUAL_NO, BT_COMPLEX, dd, GFC_STD_GNU,
+	     gfc_check_dcmplx, gfc_simplify_dcmplx, gfc_resolve_dcmplx,
+	     x, BT_REAL, dd, REQUIRED, y, BT_REAL, dd, OPTIONAL);
+
+  make_generic ("dcmplx", GFC_ISYM_CMPLX, GFC_STD_GNU);
+
+  add_sym_1 ("conjg", GFC_ISYM_CONJG, CLASS_ELEMENTAL, ACTUAL_YES, BT_COMPLEX, dz, GFC_STD_F77,
+	     gfc_check_fn_c, gfc_simplify_conjg, gfc_resolve_conjg,
+	     z, BT_COMPLEX, dz, REQUIRED);
+
+  add_sym_1 ("dconjg", GFC_ISYM_CONJG, CLASS_ELEMENTAL, ACTUAL_YES, BT_COMPLEX, dd, GFC_STD_GNU,
+	     NULL, gfc_simplify_conjg, gfc_resolve_conjg, 
+	     z, BT_COMPLEX, dd, REQUIRED);
+
+  make_generic ("conjg", GFC_ISYM_CONJG, GFC_STD_F77);
+
+  add_sym_1 ("cos", GFC_ISYM_COS, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_rc, gfc_simplify_cos, gfc_resolve_cos,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dcos", GFC_ISYM_COS, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_cos, gfc_resolve_cos,
+	     x, BT_REAL, dd, REQUIRED);
+
+  add_sym_1 ("ccos", GFC_ISYM_COS, CLASS_ELEMENTAL, ACTUAL_YES, BT_COMPLEX, dz, GFC_STD_F77,
+	     NULL, gfc_simplify_cos, gfc_resolve_cos,
+	     x, BT_COMPLEX, dz, REQUIRED);
+
+  add_sym_1 ("zcos", GFC_ISYM_COS, CLASS_ELEMENTAL, ACTUAL_YES, BT_COMPLEX, dd, GFC_STD_GNU,
+	     NULL, gfc_simplify_cos, gfc_resolve_cos, 
+	     x, BT_COMPLEX, dd, REQUIRED);
+
+  make_alias ("cdcos", GFC_STD_GNU);
+
+  make_generic ("cos", GFC_ISYM_COS, GFC_STD_F77);
+
+  add_sym_1 ("cosh", GFC_ISYM_COSH, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_rc2008, gfc_simplify_cosh, gfc_resolve_cosh,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dcosh", GFC_ISYM_COSH, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_cosh, gfc_resolve_cosh,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("cosh", GFC_ISYM_COSH, GFC_STD_F77);
+
+  add_sym_3 ("count", GFC_ISYM_COUNT, CLASS_TRANSFORMATIONAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_count, gfc_simplify_count, gfc_resolve_count,
+	     msk, BT_LOGICAL, dl, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+	     kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("count", GFC_ISYM_COUNT, GFC_STD_F95);
+
+  add_sym_3 ("cshift", GFC_ISYM_CSHIFT, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_cshift, NULL, gfc_resolve_cshift,
+	     ar, BT_REAL, dr, REQUIRED, sh, BT_INTEGER, di, REQUIRED,
+	     dm, BT_INTEGER, ii, OPTIONAL);
+
+  make_generic ("cshift", GFC_ISYM_CSHIFT, GFC_STD_F95);
+
+  add_sym_1 ("ctime", GFC_ISYM_CTIME, CLASS_IMPURE, ACTUAL_NO, BT_CHARACTER,
+	     0, GFC_STD_GNU, gfc_check_ctime, NULL, gfc_resolve_ctime,
+	     tm, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("ctime", GFC_ISYM_CTIME, GFC_STD_GNU);
+
+  add_sym_1 ("dble", GFC_ISYM_DBLE, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_dble, gfc_simplify_dble, gfc_resolve_dble,
+	     a, BT_REAL, dr, REQUIRED);
+
+  make_generic ("dble", GFC_ISYM_DBLE, GFC_STD_F77);
+
+  add_sym_1 ("digits", GFC_ISYM_DIGITS, CLASS_INQUIRY, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_digits, gfc_simplify_digits, NULL,
+	     x, BT_UNKNOWN, dr, REQUIRED);
+
+  make_generic ("digits", GFC_ISYM_DIGITS, GFC_STD_F95);
+
+  add_sym_2 ("dim", GFC_ISYM_DIM, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_a_p, gfc_simplify_dim, gfc_resolve_dim,
+	     x, BT_REAL, dr, REQUIRED, y, BT_REAL, dr, REQUIRED);
+
+  add_sym_2 ("idim", GFC_ISYM_DIM, CLASS_ELEMENTAL, ACTUAL_YES, BT_INTEGER, di, GFC_STD_F77,
+	     NULL, gfc_simplify_dim, gfc_resolve_dim,
+	     x, BT_INTEGER, di, REQUIRED, y, BT_INTEGER, di, REQUIRED);
+
+  add_sym_2 ("ddim", GFC_ISYM_DIM, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_x_yd, gfc_simplify_dim, gfc_resolve_dim,
+	     x, BT_REAL, dd, REQUIRED, y, BT_REAL, dd, REQUIRED);
+
+  make_generic ("dim", GFC_ISYM_DIM, GFC_STD_F77);
+
+  add_sym_2 ("dot_product", GFC_ISYM_DOT_PRODUCT, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr,
+	     GFC_STD_F95, gfc_check_dot_product, gfc_simplify_dot_product, gfc_resolve_dot_product,
+	     va, BT_REAL, dr, REQUIRED, vb, BT_REAL, dr, REQUIRED);
+
+  make_generic ("dot_product", GFC_ISYM_DOT_PRODUCT, GFC_STD_F95);
+
+  add_sym_2 ("dprod", GFC_ISYM_DPROD,CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_dprod, gfc_simplify_dprod, gfc_resolve_dprod,
+	     x, BT_REAL, dr, REQUIRED, y, BT_REAL, dr, REQUIRED);
+
+  make_generic ("dprod", GFC_ISYM_DPROD, GFC_STD_F77);
+
+  add_sym_1 ("dreal", GFC_ISYM_REAL, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd, GFC_STD_GNU,
+	     NULL, NULL, NULL,
+	     a, BT_COMPLEX, dd, REQUIRED);
+
+  make_generic ("dreal", GFC_ISYM_REAL, GFC_STD_GNU);
+
+  add_sym_3 ("dshiftl", GFC_ISYM_DSHIFTL, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_dshift, gfc_simplify_dshiftl, gfc_resolve_dshift,
+	     i, BT_INTEGER, di, REQUIRED,
+	     j, BT_INTEGER, di, REQUIRED,
+	     sh, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("dshiftl", GFC_ISYM_DSHIFTL, GFC_STD_F2008);
+
+  add_sym_3 ("dshiftr", GFC_ISYM_DSHIFTR, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_dshift, gfc_simplify_dshiftr, gfc_resolve_dshift,
+	     i, BT_INTEGER, di, REQUIRED,
+	     j, BT_INTEGER, di, REQUIRED,
+	     sh, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("dshiftr", GFC_ISYM_DSHIFTR, GFC_STD_F2008);
+
+  add_sym_4 ("eoshift", GFC_ISYM_EOSHIFT, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_eoshift, NULL, gfc_resolve_eoshift,
+	     ar, BT_REAL, dr, REQUIRED, sh, BT_INTEGER, ii, REQUIRED,
+	     bd, BT_REAL, dr, OPTIONAL, dm, BT_INTEGER, ii, OPTIONAL);
+
+  make_generic ("eoshift", GFC_ISYM_EOSHIFT, GFC_STD_F95);
+
+  add_sym_1 ("epsilon", GFC_ISYM_EPSILON, CLASS_INQUIRY, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_x, gfc_simplify_epsilon, NULL,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_generic ("epsilon", GFC_ISYM_EPSILON, GFC_STD_F95);
+
+  /* G77 compatibility for the ERF() and ERFC() functions.  */
+  add_sym_1 ("erf", GFC_ISYM_ERF, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr,
+	     GFC_STD_F2008, gfc_check_fn_r, gfc_simplify_erf,
+	     gfc_resolve_g77_math1, x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("derf", GFC_ISYM_ERF, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd,
+	     GFC_STD_GNU, gfc_check_fn_d, gfc_simplify_erf,
+	     gfc_resolve_g77_math1, x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("erf", GFC_ISYM_ERF, GFC_STD_F2008);
+
+  add_sym_1 ("erfc", GFC_ISYM_ERFC, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr,
+	     GFC_STD_F2008, gfc_check_fn_r, gfc_simplify_erfc,
+	     gfc_resolve_g77_math1, x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("derfc", GFC_ISYM_ERFC, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd,
+	     GFC_STD_GNU, gfc_check_fn_d, gfc_simplify_erfc,
+	     gfc_resolve_g77_math1, x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("erfc", GFC_ISYM_ERFC, GFC_STD_F2008);
+
+  add_sym_1 ("erfc_scaled", GFC_ISYM_ERFC_SCALED, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_REAL, dr, GFC_STD_F2008, gfc_check_fn_r,
+	     gfc_simplify_erfc_scaled, gfc_resolve_g77_math1, x, BT_REAL,
+	     dr, REQUIRED);
+
+  make_generic ("erfc_scaled", GFC_ISYM_ERFC_SCALED, GFC_STD_F2008);
+
+  /* G77 compatibility */
+  add_sym_1 ("dtime", GFC_ISYM_DTIME, CLASS_IMPURE, ACTUAL_NO, BT_REAL,
+	     4, GFC_STD_GNU, gfc_check_dtime_etime, NULL, NULL,
+	     x, BT_REAL, 4, REQUIRED);
+
+  make_generic ("dtime", GFC_ISYM_DTIME, GFC_STD_GNU);
+
+  add_sym_1 ("etime", GFC_ISYM_ETIME, CLASS_IMPURE, ACTUAL_NO, BT_REAL,
+	     4, GFC_STD_GNU, gfc_check_dtime_etime, NULL, NULL,
+	     x, BT_REAL, 4, REQUIRED);
+
+  make_generic ("etime", GFC_ISYM_ETIME, GFC_STD_GNU);
+
+  add_sym_1 ("exp", GFC_ISYM_EXP, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr,  GFC_STD_F77,
+	     gfc_check_fn_rc, gfc_simplify_exp, gfc_resolve_exp,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dexp", GFC_ISYM_EXP, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_exp, gfc_resolve_exp,
+	     x, BT_REAL, dd, REQUIRED);
+
+  add_sym_1 ("cexp", GFC_ISYM_EXP, CLASS_ELEMENTAL, ACTUAL_YES, BT_COMPLEX, dz, GFC_STD_F77,
+	     NULL, gfc_simplify_exp, gfc_resolve_exp,
+	     x, BT_COMPLEX, dz, REQUIRED);
+
+  add_sym_1 ("zexp", GFC_ISYM_EXP, CLASS_ELEMENTAL, ACTUAL_YES, BT_COMPLEX, dd,  GFC_STD_GNU,
+	     NULL, gfc_simplify_exp, gfc_resolve_exp, 
+	     x, BT_COMPLEX, dd, REQUIRED);
+
+  make_alias ("cdexp", GFC_STD_GNU);
+
+  make_generic ("exp", GFC_ISYM_EXP, GFC_STD_F77);
+
+  add_sym_1 ("exponent", GFC_ISYM_EXPONENT, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_x, gfc_simplify_exponent, gfc_resolve_exponent,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_generic ("exponent", GFC_ISYM_EXPONENT, GFC_STD_F95);
+
+  add_sym_2 ("extends_type_of", GFC_ISYM_EXTENDS_TYPE_OF, CLASS_INQUIRY,
+	     ACTUAL_NO, BT_LOGICAL, dl, GFC_STD_F2003,
+	     gfc_check_same_type_as, gfc_simplify_extends_type_of,
+	     gfc_resolve_extends_type_of,
+	     a, BT_UNKNOWN, 0, REQUIRED,
+	     mo, BT_UNKNOWN, 0, REQUIRED);
+
+  add_sym_0 ("fdate",  GFC_ISYM_FDATE, CLASS_IMPURE, ACTUAL_NO, BT_CHARACTER,
+	     dc, GFC_STD_GNU, NULL, NULL, gfc_resolve_fdate);
+
+  make_generic ("fdate", GFC_ISYM_FDATE, GFC_STD_GNU);
+
+  add_sym_2 ("floor", GFC_ISYM_FLOOR, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_a_ikind, gfc_simplify_floor, gfc_resolve_floor,
+	     a, BT_REAL, dr, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("floor", GFC_ISYM_FLOOR, GFC_STD_F95);
+
+  /* G77 compatible fnum */
+  add_sym_1 ("fnum", GFC_ISYM_FNUM, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, gfc_check_fnum, NULL, gfc_resolve_fnum,
+	     ut, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("fnum", GFC_ISYM_FNUM, GFC_STD_GNU);
+
+  add_sym_1 ("fraction", GFC_ISYM_FRACTION, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_x, gfc_simplify_fraction, gfc_resolve_fraction,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_generic ("fraction", GFC_ISYM_FRACTION, GFC_STD_F95);
+
+  add_sym_2_intent ("fstat", GFC_ISYM_FSTAT, CLASS_IMPURE, ACTUAL_NO,
+		    BT_INTEGER, di, GFC_STD_GNU,
+		    gfc_check_fstat, NULL, gfc_resolve_fstat,
+		    ut, BT_INTEGER, di, REQUIRED, INTENT_IN,
+		    vl, BT_INTEGER, di, REQUIRED, INTENT_OUT);
+
+  make_generic ("fstat", GFC_ISYM_FSTAT, GFC_STD_GNU);
+
+  add_sym_1 ("ftell", GFC_ISYM_FTELL, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     ii, GFC_STD_GNU, gfc_check_ftell, NULL, gfc_resolve_ftell,
+	     ut, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("ftell", GFC_ISYM_FTELL, GFC_STD_GNU);
+
+  add_sym_2_intent ("fgetc", GFC_ISYM_FGETC, CLASS_IMPURE, ACTUAL_NO,
+		    BT_INTEGER, di, GFC_STD_GNU,
+		    gfc_check_fgetputc, NULL, gfc_resolve_fgetc,
+		    ut, BT_INTEGER, di, REQUIRED, INTENT_IN,
+		    c, BT_CHARACTER, dc, REQUIRED, INTENT_OUT);
+
+  make_generic ("fgetc", GFC_ISYM_FGETC, GFC_STD_GNU);
+
+  add_sym_1_intent ("fget", GFC_ISYM_FGET, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, gfc_check_fgetput, NULL, gfc_resolve_fget,
+	     c, BT_CHARACTER, dc, REQUIRED, INTENT_OUT);
+
+  make_generic ("fget", GFC_ISYM_FGET, GFC_STD_GNU);
+
+  add_sym_2 ("fputc", GFC_ISYM_FPUTC, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, gfc_check_fgetputc, NULL, gfc_resolve_fputc,
+	     ut, BT_INTEGER, di, REQUIRED, c, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("fputc", GFC_ISYM_FPUTC, GFC_STD_GNU);
+
+  add_sym_1 ("fput", GFC_ISYM_FPUT, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, gfc_check_fgetput, NULL, gfc_resolve_fput,
+	     c, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("fput", GFC_ISYM_FPUT, GFC_STD_GNU);
+
+  add_sym_1 ("gamma", GFC_ISYM_TGAMMA, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr,
+	     GFC_STD_F2008, gfc_check_fn_r, gfc_simplify_gamma,
+	     gfc_resolve_gamma, x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dgamma", GFC_ISYM_TGAMMA, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_GNU,
+	     gfc_check_fn_d, gfc_simplify_gamma, gfc_resolve_gamma,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_generic ("gamma", GFC_ISYM_TGAMMA, GFC_STD_F2008);
+
+  /* Unix IDs (g77 compatibility)  */
+  add_sym_1 ("getcwd", GFC_ISYM_GETCWD, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di,  GFC_STD_GNU, NULL, NULL, gfc_resolve_getcwd,
+	     c, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("getcwd", GFC_ISYM_GETCWD, GFC_STD_GNU);
+
+  add_sym_0 ("getgid", GFC_ISYM_GETGID, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, NULL, NULL, gfc_resolve_getgid);
+
+  make_generic ("getgid", GFC_ISYM_GETGID, GFC_STD_GNU);
+
+  add_sym_0 ("getpid", GFC_ISYM_GETPID, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, NULL, NULL, gfc_resolve_getpid);
+
+  make_generic ("getpid", GFC_ISYM_GETPID, GFC_STD_GNU);
+
+  add_sym_0 ("getuid", GFC_ISYM_GETUID, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, NULL, NULL, gfc_resolve_getuid);
+
+  make_generic ("getuid", GFC_ISYM_GETUID, GFC_STD_GNU);
+
+  add_sym_1_intent ("hostnm", GFC_ISYM_HOSTNM, CLASS_IMPURE, ACTUAL_NO,
+		    BT_INTEGER, di, GFC_STD_GNU,
+		    gfc_check_hostnm, NULL, gfc_resolve_hostnm,
+		    c, BT_CHARACTER, dc, REQUIRED, INTENT_OUT);
+
+  make_generic ("hostnm", GFC_ISYM_HOSTNM, GFC_STD_GNU);
+
+  add_sym_1 ("huge", GFC_ISYM_HUGE, CLASS_INQUIRY, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_huge, gfc_simplify_huge, NULL,
+	     x, BT_UNKNOWN, dr, REQUIRED);
+
+  make_generic ("huge", GFC_ISYM_HUGE, GFC_STD_F95);
+
+  add_sym_2 ("hypot", GFC_ISYM_HYPOT, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_REAL, dr, GFC_STD_F2008,
+	     gfc_check_hypot, gfc_simplify_hypot, gfc_resolve_hypot,
+	     x, BT_REAL, dr, REQUIRED, y, BT_REAL, dr, REQUIRED);
+
+  make_generic ("hypot", GFC_ISYM_HYPOT, GFC_STD_F2008);
+
+  add_sym_2 ("iachar", GFC_ISYM_IACHAR, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_ichar_iachar, gfc_simplify_iachar, gfc_resolve_iachar,
+	     c, BT_CHARACTER, dc, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("iachar", GFC_ISYM_IACHAR, GFC_STD_F95);
+
+  add_sym_2 ("iand", GFC_ISYM_IAND, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_iand, gfc_simplify_iand, gfc_resolve_iand,
+	     i, BT_INTEGER, di, REQUIRED, j, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("iand", GFC_ISYM_IAND, GFC_STD_F95);
+
+  add_sym_2 ("and", GFC_ISYM_AND, CLASS_IMPURE, ACTUAL_NO, BT_LOGICAL,
+	     dl, GFC_STD_GNU, gfc_check_and, gfc_simplify_and, gfc_resolve_and,
+	     i, BT_UNKNOWN, 0, REQUIRED, j, BT_UNKNOWN, 0, REQUIRED);
+
+  make_generic ("and", GFC_ISYM_AND, GFC_STD_GNU);
+
+  add_sym_3red ("iall", GFC_ISYM_IALL, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F2008,
+		gfc_check_transf_bit_intrins, gfc_simplify_iall, gfc_resolve_iall,
+		ar, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+		msk, BT_LOGICAL, dl, OPTIONAL);
+
+  make_generic ("iall", GFC_ISYM_IALL, GFC_STD_F2008);
+
+  add_sym_3red ("iany", GFC_ISYM_IANY, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F2008,
+		gfc_check_transf_bit_intrins, gfc_simplify_iany, gfc_resolve_iany,
+		ar, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+		msk, BT_LOGICAL, dl, OPTIONAL);
+
+  make_generic ("iany", GFC_ISYM_IANY, GFC_STD_F2008);
+
+  add_sym_0 ("iargc", GFC_ISYM_IARGC, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, NULL, NULL, NULL);
+
+  make_generic ("iargc", GFC_ISYM_IARGC, GFC_STD_GNU);
+
+  add_sym_2 ("ibclr", GFC_ISYM_IBCLR, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_bitfcn, gfc_simplify_ibclr, gfc_resolve_ibclr,
+	     i, BT_INTEGER, di, REQUIRED, pos, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("ibclr", GFC_ISYM_IBCLR, GFC_STD_F95);
+
+  add_sym_3 ("ibits", GFC_ISYM_IBITS, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_ibits, gfc_simplify_ibits, gfc_resolve_ibits,
+	     i, BT_INTEGER, di, REQUIRED, pos, BT_INTEGER, di, REQUIRED,
+	     ln, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("ibits", GFC_ISYM_IBITS, GFC_STD_F95);
+
+  add_sym_2 ("ibset", GFC_ISYM_IBSET, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_bitfcn, gfc_simplify_ibset, gfc_resolve_ibset,
+	     i, BT_INTEGER, di, REQUIRED, pos, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("ibset", GFC_ISYM_IBSET, GFC_STD_F95);
+
+  add_sym_2 ("ichar", GFC_ISYM_ICHAR, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F77,
+	     gfc_check_ichar_iachar, gfc_simplify_ichar, gfc_resolve_ichar,
+	     c, BT_CHARACTER, dc, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("ichar", GFC_ISYM_ICHAR, GFC_STD_F77);
+
+  add_sym_2 ("ieor", GFC_ISYM_IEOR, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_ieor, gfc_simplify_ieor, gfc_resolve_ieor,
+	     i, BT_INTEGER, di, REQUIRED, j, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("ieor", GFC_ISYM_IEOR, GFC_STD_F95);
+
+  add_sym_2 ("xor", GFC_ISYM_XOR, CLASS_IMPURE, ACTUAL_NO, BT_LOGICAL,
+	     dl, GFC_STD_GNU, gfc_check_and, gfc_simplify_xor, gfc_resolve_xor,
+	     i, BT_UNKNOWN, 0, REQUIRED, j, BT_UNKNOWN, 0, REQUIRED);
+
+  make_generic ("xor", GFC_ISYM_XOR, GFC_STD_GNU);
+
+  add_sym_0 ("ierrno", GFC_ISYM_IERRNO, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, NULL, NULL, gfc_resolve_ierrno);
+
+  make_generic ("ierrno", GFC_ISYM_IERRNO, GFC_STD_GNU);
+
+  add_sym_2 ("image_index", GFC_ISYM_IMAGE_INDEX, CLASS_INQUIRY, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_image_index, gfc_simplify_image_index, gfc_resolve_image_index,
+	     ca, BT_REAL, dr, REQUIRED, sub, BT_INTEGER, ii, REQUIRED);
+
+  /* The resolution function for INDEX is called gfc_resolve_index_func
+     because the name gfc_resolve_index is already used in resolve.c.  */
+  add_sym_4 ("index", GFC_ISYM_INDEX, CLASS_ELEMENTAL, ACTUAL_YES,
+	     BT_INTEGER, di, GFC_STD_F77,
+	     gfc_check_index, gfc_simplify_index, gfc_resolve_index_func,
+	     stg, BT_CHARACTER, dc, REQUIRED, ssg, BT_CHARACTER, dc, REQUIRED,
+	     bck, BT_LOGICAL, dl, OPTIONAL, kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("index", GFC_ISYM_INDEX, GFC_STD_F77);
+
+  add_sym_2 ("int", GFC_ISYM_INT, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F77,
+	     gfc_check_int, gfc_simplify_int, gfc_resolve_int,
+	     a, BT_REAL, dr, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  add_sym_1 ("ifix", GFC_ISYM_INT, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F77,
+	     NULL, gfc_simplify_ifix, NULL,
+	     a, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("idint", GFC_ISYM_INT, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F77,
+	     NULL, gfc_simplify_idint, NULL,
+	     a, BT_REAL, dd, REQUIRED);
+
+  make_generic ("int", GFC_ISYM_INT, GFC_STD_F77);
+
+  add_sym_1 ("int2", GFC_ISYM_INT2, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_GNU,
+	     gfc_check_intconv, gfc_simplify_int2, gfc_resolve_int2,
+	     a, BT_REAL, dr, REQUIRED);
+
+  make_alias ("short", GFC_STD_GNU);
+
+  make_generic ("int2", GFC_ISYM_INT2, GFC_STD_GNU);
+
+  add_sym_1 ("int8", GFC_ISYM_INT8, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_GNU,
+	     gfc_check_intconv, gfc_simplify_int8, gfc_resolve_int8,
+	     a, BT_REAL, dr, REQUIRED);
+
+  make_generic ("int8", GFC_ISYM_INT8, GFC_STD_GNU);
+
+  add_sym_1 ("long", GFC_ISYM_LONG, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_GNU,
+	     gfc_check_intconv, gfc_simplify_long, gfc_resolve_long,
+	     a, BT_REAL, dr, REQUIRED);
+
+  make_generic ("long", GFC_ISYM_LONG, GFC_STD_GNU);
+
+  add_sym_2 ("ior", GFC_ISYM_IOR, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_ior, gfc_simplify_ior, gfc_resolve_ior,
+	     i, BT_INTEGER, di, REQUIRED, j, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("ior", GFC_ISYM_IOR, GFC_STD_F95);
+
+  add_sym_2 ("or", GFC_ISYM_OR, CLASS_IMPURE, ACTUAL_NO, BT_LOGICAL,
+	     dl, GFC_STD_GNU, gfc_check_and, gfc_simplify_or, gfc_resolve_or,
+	     i, BT_UNKNOWN, 0, REQUIRED, j, BT_UNKNOWN, 0, REQUIRED);
+
+  make_generic ("or", GFC_ISYM_OR, GFC_STD_GNU);
+
+  add_sym_3red ("iparity", GFC_ISYM_IPARITY, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F2008,
+		gfc_check_transf_bit_intrins, gfc_simplify_iparity, gfc_resolve_iparity,
+		ar, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+		msk, BT_LOGICAL, dl, OPTIONAL);
+
+  make_generic ("iparity", GFC_ISYM_IPARITY, GFC_STD_F2008);
+
+  /* The following function is for G77 compatibility.  */
+  add_sym_1 ("irand", GFC_ISYM_IRAND, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     4, GFC_STD_GNU, gfc_check_irand, NULL, NULL,
+	     i, BT_INTEGER, 4, OPTIONAL);
+
+  make_generic ("irand", GFC_ISYM_IRAND, GFC_STD_GNU);
+
+  add_sym_1 ("isatty", GFC_ISYM_ISATTY, CLASS_IMPURE, ACTUAL_NO, BT_LOGICAL,
+	     dl, GFC_STD_GNU, gfc_check_isatty, NULL, gfc_resolve_isatty,
+	     ut, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("isatty", GFC_ISYM_ISATTY, GFC_STD_GNU);
+
+  add_sym_1 ("is_iostat_end", GFC_ISYM_IS_IOSTAT_END,
+	     CLASS_ELEMENTAL, ACTUAL_NO, BT_LOGICAL, dl, GFC_STD_F2003,
+	     gfc_check_i, gfc_simplify_is_iostat_end, NULL,
+	     i, BT_INTEGER, 0, REQUIRED);
+
+  make_generic ("is_iostat_end", GFC_ISYM_IS_IOSTAT_END, GFC_STD_F2003);
+
+  add_sym_1 ("is_iostat_eor", GFC_ISYM_IS_IOSTAT_EOR,
+	     CLASS_ELEMENTAL, ACTUAL_NO, BT_LOGICAL, dl, GFC_STD_F2003,
+	     gfc_check_i, gfc_simplify_is_iostat_eor, NULL,
+	     i, BT_INTEGER, 0, REQUIRED);
+
+  make_generic ("is_iostat_eor", GFC_ISYM_IS_IOSTAT_EOR, GFC_STD_F2003);
+
+  add_sym_1 ("isnan", GFC_ISYM_ISNAN, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_LOGICAL, dl, GFC_STD_GNU,
+	     gfc_check_isnan, gfc_simplify_isnan, NULL,
+	     x, BT_REAL, 0, REQUIRED);
+
+  make_generic ("isnan", GFC_ISYM_ISNAN, GFC_STD_GNU);
+
+  add_sym_2 ("rshift", GFC_ISYM_RSHIFT, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_GNU,
+	     gfc_check_ishft, gfc_simplify_rshift, gfc_resolve_rshift,
+	     i, BT_INTEGER, di, REQUIRED, sh, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("rshift", GFC_ISYM_RSHIFT, GFC_STD_GNU);
+
+  add_sym_2 ("lshift", GFC_ISYM_LSHIFT, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_GNU,
+	     gfc_check_ishft, gfc_simplify_lshift, gfc_resolve_lshift,
+	     i, BT_INTEGER, di, REQUIRED, sh, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("lshift", GFC_ISYM_LSHIFT, GFC_STD_GNU);
+
+  add_sym_2 ("ishft", GFC_ISYM_ISHFT, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_ishft, gfc_simplify_ishft, gfc_resolve_ishft,
+	     i, BT_INTEGER, di, REQUIRED, sh, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("ishft", GFC_ISYM_ISHFT, GFC_STD_F95);
+
+  add_sym_3 ("ishftc", GFC_ISYM_ISHFTC, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_ishftc, gfc_simplify_ishftc, gfc_resolve_ishftc,
+	     i, BT_INTEGER, di, REQUIRED, sh, BT_INTEGER, di, REQUIRED,
+	     sz, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("ishftc", GFC_ISYM_ISHFTC, GFC_STD_F95);
+
+  add_sym_2 ("kill", GFC_ISYM_KILL, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, gfc_check_kill, NULL, gfc_resolve_kill,
+	     a, BT_INTEGER, di, REQUIRED, b, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("kill", GFC_ISYM_KILL, GFC_STD_GNU);
+
+  add_sym_1 ("kind", GFC_ISYM_KIND, CLASS_INQUIRY, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_kind, gfc_simplify_kind, NULL,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_generic ("kind", GFC_ISYM_KIND, GFC_STD_F95);
+
+  add_sym_3 ("lbound", GFC_ISYM_LBOUND, CLASS_INQUIRY, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_lbound, gfc_simplify_lbound, gfc_resolve_lbound,
+	     ar, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, di, OPTIONAL,
+	     kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("lbound", GFC_ISYM_LBOUND, GFC_STD_F95);
+
+  add_sym_3 ("lcobound", GFC_ISYM_LCOBOUND, CLASS_INQUIRY, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_lcobound, gfc_simplify_lcobound, gfc_resolve_lcobound,
+	     ca, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+	     kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("lcobound", GFC_ISYM_LCOBOUND, GFC_STD_F2008);
+
+  add_sym_1 ("leadz", GFC_ISYM_LEADZ, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_i, gfc_simplify_leadz, NULL,
+	     i, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("leadz", GFC_ISYM_LEADZ, GFC_STD_F2008);
+
+  add_sym_2 ("len", GFC_ISYM_LEN, CLASS_INQUIRY, ACTUAL_YES,
+	     BT_INTEGER, di, GFC_STD_F77,
+	     gfc_check_len_lentrim, gfc_simplify_len, gfc_resolve_len,
+	     stg, BT_CHARACTER, dc, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("len", GFC_ISYM_LEN, GFC_STD_F77);
+
+  add_sym_2 ("len_trim", GFC_ISYM_LEN_TRIM, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_len_lentrim, gfc_simplify_len_trim, gfc_resolve_len_trim,
+	     stg, BT_CHARACTER, dc, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  make_alias ("lnblnk", GFC_STD_GNU);
+
+  make_generic ("len_trim", GFC_ISYM_LEN_TRIM, GFC_STD_F95);
+
+  add_sym_1 ("lgamma", GFC_ISYM_LGAMMA, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL,
+	     dr, GFC_STD_GNU,
+	     gfc_check_fn_r, gfc_simplify_lgamma, gfc_resolve_lgamma,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_alias ("log_gamma", GFC_STD_F2008);
+
+  add_sym_1 ("algama", GFC_ISYM_LGAMMA, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_GNU,
+	     gfc_check_fn_r, gfc_simplify_lgamma, gfc_resolve_lgamma,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dlgama", GFC_ISYM_LGAMMA, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_GNU,
+	     gfc_check_fn_d, gfc_simplify_lgamma, gfc_resolve_lgamma,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_generic ("log_gamma", GFC_ISYM_LGAMMA, GFC_STD_F2008);
+
+
+  add_sym_2 ("lge", GFC_ISYM_LGE, CLASS_ELEMENTAL, ACTUAL_NO, BT_LOGICAL, dl,
+	     GFC_STD_F77, gfc_check_lge_lgt_lle_llt, gfc_simplify_lge, NULL,
+	     sta, BT_CHARACTER, dc, REQUIRED, stb, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("lge", GFC_ISYM_LGE, GFC_STD_F77);
+
+  add_sym_2 ("lgt", GFC_ISYM_LGT, CLASS_ELEMENTAL, ACTUAL_NO, BT_LOGICAL, dl,
+	     GFC_STD_F77, gfc_check_lge_lgt_lle_llt, gfc_simplify_lgt, NULL,
+	     sta, BT_CHARACTER, dc, REQUIRED, stb, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("lgt", GFC_ISYM_LGT, GFC_STD_F77);
+
+  add_sym_2 ("lle",GFC_ISYM_LLE,  CLASS_ELEMENTAL, ACTUAL_NO, BT_LOGICAL, dl,
+	     GFC_STD_F77, gfc_check_lge_lgt_lle_llt, gfc_simplify_lle, NULL,
+	     sta, BT_CHARACTER, dc, REQUIRED, stb, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("lle", GFC_ISYM_LLE, GFC_STD_F77);
+
+  add_sym_2 ("llt", GFC_ISYM_LLT, CLASS_ELEMENTAL, ACTUAL_NO, BT_LOGICAL, dl,
+	     GFC_STD_F77, gfc_check_lge_lgt_lle_llt, gfc_simplify_llt, NULL,
+	     sta, BT_CHARACTER, dc, REQUIRED, stb, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("llt", GFC_ISYM_LLT, GFC_STD_F77);
+
+  add_sym_2 ("link", GFC_ISYM_LINK, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER, di,
+	     GFC_STD_GNU, gfc_check_link, NULL, gfc_resolve_link,
+	     p1, BT_CHARACTER, dc, REQUIRED, p2, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("link", GFC_ISYM_LINK, GFC_STD_GNU);
+  
+  add_sym_1 ("log", GFC_ISYM_LOG, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_rc, gfc_simplify_log, gfc_resolve_log,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("alog", GFC_ISYM_LOG, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     NULL, gfc_simplify_log, gfc_resolve_log,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dlog", GFC_ISYM_LOG, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_log, gfc_resolve_log,
+	     x, BT_REAL, dd, REQUIRED);
+
+  add_sym_1 ("clog", GFC_ISYM_LOG, CLASS_ELEMENTAL, ACTUAL_YES, BT_COMPLEX, dz, GFC_STD_F77,
+	     NULL, gfc_simplify_log, gfc_resolve_log,
+	     x, BT_COMPLEX, dz, REQUIRED);
+
+  add_sym_1 ("zlog", GFC_ISYM_LOG, CLASS_ELEMENTAL, ACTUAL_YES, BT_COMPLEX, dd,  GFC_STD_GNU,
+	     NULL, gfc_simplify_log, gfc_resolve_log,
+	     x, BT_COMPLEX, dd, REQUIRED);
+
+  make_alias ("cdlog", GFC_STD_GNU);
+
+  make_generic ("log", GFC_ISYM_LOG, GFC_STD_F77);
+
+  add_sym_1 ("log10", GFC_ISYM_LOG10, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_r, gfc_simplify_log10, gfc_resolve_log10,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("alog10", GFC_ISYM_LOG10, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     NULL, gfc_simplify_log10, gfc_resolve_log10,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dlog10", GFC_ISYM_LOG10, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_log10, gfc_resolve_log10,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("log10", GFC_ISYM_LOG10, GFC_STD_F77);
+
+  add_sym_2 ("logical", GFC_ISYM_LOGICAL, CLASS_ELEMENTAL, ACTUAL_NO, BT_LOGICAL, dl, GFC_STD_F95,
+	     gfc_check_logical, gfc_simplify_logical, gfc_resolve_logical,
+	     l, BT_LOGICAL, dl, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("logical", GFC_ISYM_LOGICAL, GFC_STD_F95);
+
+  add_sym_2_intent ("lstat", GFC_ISYM_LSTAT, CLASS_IMPURE, ACTUAL_NO,
+		    BT_INTEGER, di, GFC_STD_GNU,
+		    gfc_check_stat, NULL, gfc_resolve_lstat,
+		    nm, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+		    vl, BT_INTEGER, di, REQUIRED, INTENT_OUT);
+
+  make_generic ("lstat", GFC_ISYM_LSTAT, GFC_STD_GNU);
+
+  add_sym_1 ("malloc", GFC_ISYM_MALLOC, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER, ii,
+	     GFC_STD_GNU, gfc_check_malloc, NULL, gfc_resolve_malloc,
+	     sz, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("malloc", GFC_ISYM_MALLOC, GFC_STD_GNU);
+
+  add_sym_2 ("maskl", GFC_ISYM_MASKL, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_mask, gfc_simplify_maskl, gfc_resolve_mask,
+	     i, BT_INTEGER, di, REQUIRED,
+	     kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("maskl", GFC_ISYM_MASKL, GFC_STD_F2008);
+
+  add_sym_2 ("maskr", GFC_ISYM_MASKR, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_mask, gfc_simplify_maskr, gfc_resolve_mask,
+	     i, BT_INTEGER, di, REQUIRED,
+	     kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("maskr", GFC_ISYM_MASKR, GFC_STD_F2008);
+
+  add_sym_2 ("matmul", GFC_ISYM_MATMUL, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_matmul, gfc_simplify_matmul, gfc_resolve_matmul,
+	     ma, BT_REAL, dr, REQUIRED, mb, BT_REAL, dr, REQUIRED);
+
+  make_generic ("matmul", GFC_ISYM_MATMUL, GFC_STD_F95);
+
+  /* Note: amax0 is equivalent to real(max), max1 is equivalent to
+     int(max).  The max function must take at least two arguments.  */
+
+  add_sym_1m ("max", GFC_ISYM_MAX, CLASS_ELEMENTAL, ACTUAL_NO, BT_UNKNOWN, 0, GFC_STD_F77,
+	     gfc_check_min_max, gfc_simplify_max, gfc_resolve_max,
+	     a1, BT_UNKNOWN, dr, REQUIRED, a2, BT_UNKNOWN, dr, REQUIRED);
+
+  add_sym_1m ("max0", GFC_ISYM_MAX, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F77,
+	     gfc_check_min_max_integer, gfc_simplify_max, NULL,
+	     a1, BT_INTEGER, di, REQUIRED, a2, BT_INTEGER, di, REQUIRED);
+
+  add_sym_1m ("amax0", GFC_ISYM_MAX, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_min_max_integer, gfc_simplify_max, NULL,
+	     a1, BT_INTEGER, di, REQUIRED, a2, BT_INTEGER, di, REQUIRED);
+
+  add_sym_1m ("amax1", GFC_ISYM_MAX, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_min_max_real, gfc_simplify_max, NULL,
+	     a1, BT_REAL, dr, REQUIRED, a2, BT_REAL, dr, REQUIRED);
+
+  add_sym_1m ("max1", GFC_ISYM_MAX, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F77,
+	     gfc_check_min_max_real, gfc_simplify_max, NULL,
+	     a1, BT_REAL, dr, REQUIRED, a2, BT_REAL, dr, REQUIRED);
+
+  add_sym_1m ("dmax1", GFC_ISYM_MAX, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_min_max_double, gfc_simplify_max, NULL,
+	     a1, BT_REAL, dd, REQUIRED, a2, BT_REAL, dd, REQUIRED);
+
+  make_generic ("max", GFC_ISYM_MAX, GFC_STD_F77);
+
+  add_sym_1 ("maxexponent", GFC_ISYM_MAXEXPONENT, CLASS_INQUIRY, ACTUAL_NO, BT_INTEGER, di,
+	     GFC_STD_F95, gfc_check_x, gfc_simplify_maxexponent, NULL,
+	     x, BT_UNKNOWN, dr, REQUIRED);
+
+  make_generic ("maxexponent", GFC_ISYM_MAXEXPONENT, GFC_STD_F95);
+
+  add_sym_3ml ("maxloc", GFC_ISYM_MAXLOC, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	       gfc_check_minloc_maxloc, NULL, gfc_resolve_maxloc,
+	       ar, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+	       msk, BT_LOGICAL, dl, OPTIONAL);
+
+  make_generic ("maxloc", GFC_ISYM_MAXLOC, GFC_STD_F95);
+
+  add_sym_3red ("maxval", GFC_ISYM_MAXVAL, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+		gfc_check_minval_maxval, gfc_simplify_maxval, gfc_resolve_maxval,
+		ar, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+		msk, BT_LOGICAL, dl, OPTIONAL);
+
+  make_generic ("maxval", GFC_ISYM_MAXVAL, GFC_STD_F95);
+
+  add_sym_0 ("mclock", GFC_ISYM_MCLOCK, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER, di,
+	     GFC_STD_GNU, NULL, NULL, gfc_resolve_mclock);
+
+  make_generic ("mclock", GFC_ISYM_MCLOCK, GFC_STD_GNU);
+
+  add_sym_0 ("mclock8", GFC_ISYM_MCLOCK8, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, NULL, NULL, gfc_resolve_mclock8);
+
+  make_generic ("mclock8", GFC_ISYM_MCLOCK8, GFC_STD_GNU);
+
+  add_sym_3 ("merge", GFC_ISYM_MERGE, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_merge, gfc_simplify_merge, gfc_resolve_merge,
+	     ts, BT_REAL, dr, REQUIRED, fs, BT_REAL, dr, REQUIRED,
+	     msk, BT_LOGICAL, dl, REQUIRED);
+
+  make_generic ("merge", GFC_ISYM_MERGE, GFC_STD_F95);
+
+  add_sym_3 ("merge_bits", GFC_ISYM_MERGE_BITS, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_merge_bits, gfc_simplify_merge_bits,
+	     gfc_resolve_merge_bits,
+	     i, BT_INTEGER, di, REQUIRED,
+	     j, BT_INTEGER, di, REQUIRED,
+	     msk, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("merge_bits", GFC_ISYM_MERGE_BITS, GFC_STD_F2008);
+
+  /* Note: amin0 is equivalent to real(min), min1 is equivalent to
+     int(min).  */
+
+  add_sym_1m ("min", GFC_ISYM_MIN, CLASS_ELEMENTAL, ACTUAL_NO, BT_UNKNOWN, 0, GFC_STD_F77,
+	      gfc_check_min_max, gfc_simplify_min, gfc_resolve_min,
+	      a1, BT_REAL, dr, REQUIRED, a2, BT_REAL, dr, REQUIRED);
+
+  add_sym_1m ("min0", GFC_ISYM_MIN, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F77,
+	      gfc_check_min_max_integer, gfc_simplify_min, NULL,
+	      a1, BT_INTEGER, di, REQUIRED, a2, BT_INTEGER, di, REQUIRED);
+
+  add_sym_1m ("amin0", GFC_ISYM_MIN, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F77,
+	      gfc_check_min_max_integer, gfc_simplify_min, NULL,
+	      a1, BT_INTEGER, di, REQUIRED, a2, BT_INTEGER, di, REQUIRED);
+
+  add_sym_1m ("amin1", GFC_ISYM_MIN, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F77,
+	      gfc_check_min_max_real, gfc_simplify_min, NULL,
+	      a1, BT_REAL, dr, REQUIRED, a2, BT_REAL, dr, REQUIRED);
+
+  add_sym_1m ("min1", GFC_ISYM_MIN, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F77,
+	      gfc_check_min_max_real, gfc_simplify_min, NULL,
+	      a1, BT_REAL, dr, REQUIRED, a2, BT_REAL, dr, REQUIRED);
+
+  add_sym_1m ("dmin1", GFC_ISYM_MIN, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd, GFC_STD_F77,
+	      gfc_check_min_max_double, gfc_simplify_min, NULL,
+	      a1, BT_REAL, dd, REQUIRED, a2, BT_REAL, dd, REQUIRED);
+
+  make_generic ("min", GFC_ISYM_MIN, GFC_STD_F77);
+
+  add_sym_1 ("minexponent", GFC_ISYM_MINEXPONENT, CLASS_INQUIRY, ACTUAL_NO, BT_INTEGER, di,
+	     GFC_STD_F95, gfc_check_x, gfc_simplify_minexponent, NULL,
+	     x, BT_UNKNOWN, dr, REQUIRED);
+
+  make_generic ("minexponent", GFC_ISYM_MINEXPONENT, GFC_STD_F95);
+
+  add_sym_3ml ("minloc", GFC_ISYM_MINLOC, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	       gfc_check_minloc_maxloc, NULL, gfc_resolve_minloc,
+	       ar, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+	       msk, BT_LOGICAL, dl, OPTIONAL);
+
+  make_generic ("minloc", GFC_ISYM_MINLOC, GFC_STD_F95);
+
+  add_sym_3red ("minval", GFC_ISYM_MINVAL, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+		gfc_check_minval_maxval, gfc_simplify_minval, gfc_resolve_minval,
+		ar, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+		msk, BT_LOGICAL, dl, OPTIONAL);
+
+  make_generic ("minval", GFC_ISYM_MINVAL, GFC_STD_F95);
+
+  add_sym_2 ("mod", GFC_ISYM_MOD, CLASS_ELEMENTAL, ACTUAL_YES, BT_INTEGER, di, GFC_STD_F77,
+	     gfc_check_a_p, gfc_simplify_mod, gfc_resolve_mod,
+	     a, BT_INTEGER, di, REQUIRED, p, BT_INTEGER, di, REQUIRED);
+
+  add_sym_2 ("amod", GFC_ISYM_MOD, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     NULL, gfc_simplify_mod, gfc_resolve_mod,
+	     a, BT_REAL, dr, REQUIRED, p, BT_REAL, dr, REQUIRED);
+
+  add_sym_2 ("dmod", GFC_ISYM_MOD, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_x_yd, gfc_simplify_mod, gfc_resolve_mod,
+	     a, BT_REAL, dd, REQUIRED, p, BT_REAL, dd, REQUIRED);
+
+  make_generic ("mod", GFC_ISYM_MOD, GFC_STD_F77);
+
+  add_sym_2 ("modulo", GFC_ISYM_MODULO, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, di, GFC_STD_F95,
+	     gfc_check_a_p, gfc_simplify_modulo, gfc_resolve_modulo,
+	     a, BT_REAL, di, REQUIRED, p, BT_REAL, di, REQUIRED);
+
+  make_generic ("modulo", GFC_ISYM_MODULO, GFC_STD_F95);
+
+  add_sym_2 ("nearest", GFC_ISYM_NEAREST, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_nearest, gfc_simplify_nearest, gfc_resolve_nearest,
+	     x, BT_REAL, dr, REQUIRED, s, BT_REAL, dr, REQUIRED);
+
+  make_generic ("nearest", GFC_ISYM_NEAREST, GFC_STD_F95);
+
+  add_sym_1 ("new_line", GFC_ISYM_NEW_LINE, CLASS_INQUIRY, ACTUAL_NO, BT_CHARACTER, dc,
+	     GFC_STD_F2003, gfc_check_new_line, gfc_simplify_new_line, NULL,
+	     a, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("new_line", GFC_ISYM_NEW_LINE, GFC_STD_F2003);
+
+  add_sym_2 ("nint", GFC_ISYM_NINT, CLASS_ELEMENTAL, ACTUAL_YES, BT_INTEGER, di, GFC_STD_F77,
+	     gfc_check_a_ikind, gfc_simplify_nint, gfc_resolve_nint,
+	     a, BT_REAL, dr, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  add_sym_1 ("idnint", GFC_ISYM_NINT, CLASS_ELEMENTAL, ACTUAL_YES, BT_INTEGER, di, GFC_STD_F77,
+	     gfc_check_idnint, gfc_simplify_idnint, gfc_resolve_idnint,
+	     a, BT_REAL, dd, REQUIRED);
+
+  make_generic ("nint", GFC_ISYM_NINT, GFC_STD_F77);
+
+  add_sym_1 ("not", GFC_ISYM_NOT, CLASS_ELEMENTAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_i, gfc_simplify_not, gfc_resolve_not,
+	     i, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("not", GFC_ISYM_NOT, GFC_STD_F95);
+
+  add_sym_2 ("norm2", GFC_ISYM_NORM2, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr,
+	     GFC_STD_F2008, gfc_check_norm2, gfc_simplify_norm2, gfc_resolve_norm2,
+	     x, BT_REAL, dr, REQUIRED,
+	     dm, BT_INTEGER, ii, OPTIONAL);
+
+  make_generic ("norm2", GFC_ISYM_NORM2, GFC_STD_F2008);
+
+  add_sym_1 ("null", GFC_ISYM_NULL, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_null, gfc_simplify_null, NULL,
+	     mo, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("null", GFC_ISYM_NULL, GFC_STD_F95);
+
+  add_sym_0 ("num_images", GFC_ISYM_NUMIMAGES, CLASS_INQUIRY, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F2008,
+	     NULL, gfc_simplify_num_images, NULL);
+
+  add_sym_3 ("pack", GFC_ISYM_PACK, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_pack, gfc_simplify_pack, gfc_resolve_pack,
+	     ar, BT_REAL, dr, REQUIRED, msk, BT_LOGICAL, dl, REQUIRED,
+	     v, BT_REAL, dr, OPTIONAL);
+
+  make_generic ("pack", GFC_ISYM_PACK, GFC_STD_F95);
+
+
+  add_sym_2 ("parity", GFC_ISYM_PARITY, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_LOGICAL, dl,
+	     GFC_STD_F2008, gfc_check_parity, gfc_simplify_parity, gfc_resolve_parity,
+	     msk, BT_LOGICAL, dl, REQUIRED,
+	     dm, BT_INTEGER, ii, OPTIONAL);
+
+  make_generic ("parity", GFC_ISYM_PARITY, GFC_STD_F2008);
+
+  add_sym_1 ("popcnt", GFC_ISYM_POPCNT, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_i, gfc_simplify_popcnt, NULL,
+	     i, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("popcnt", GFC_ISYM_POPCNT, GFC_STD_F2008);
+
+  add_sym_1 ("poppar", GFC_ISYM_POPPAR, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_i, gfc_simplify_poppar, NULL,
+	     i, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("poppar", GFC_ISYM_POPPAR, GFC_STD_F2008);
+
+  add_sym_1 ("precision", GFC_ISYM_PRECISION, CLASS_INQUIRY, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_precision, gfc_simplify_precision, NULL,
+	     x, BT_UNKNOWN, 0, REQUIRED);
+
+  make_generic ("precision", GFC_ISYM_PRECISION, GFC_STD_F95);
+
+  add_sym_1_intent ("present", GFC_ISYM_PRESENT, CLASS_INQUIRY, ACTUAL_NO,
+		    BT_LOGICAL, dl, GFC_STD_F95, gfc_check_present, NULL, NULL,
+		    a, BT_REAL, dr, REQUIRED, INTENT_UNKNOWN);
+
+  make_generic ("present", GFC_ISYM_PRESENT, GFC_STD_F95);
+
+  add_sym_3red ("product", GFC_ISYM_PRODUCT, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+		gfc_check_product_sum, gfc_simplify_product, gfc_resolve_product,
+		ar, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+		msk, BT_LOGICAL, dl, OPTIONAL);
+
+  make_generic ("product", GFC_ISYM_PRODUCT, GFC_STD_F95);
+
+  add_sym_1 ("radix", GFC_ISYM_RADIX, CLASS_INQUIRY, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_radix, gfc_simplify_radix, NULL,
+	     x, BT_UNKNOWN, 0, REQUIRED);
+
+  make_generic ("radix", GFC_ISYM_RADIX, GFC_STD_F95);
+
+  /* The following function is for G77 compatibility.  */
+  add_sym_1 ("rand", GFC_ISYM_RAND, CLASS_IMPURE, ACTUAL_NO, BT_REAL,
+	     4, GFC_STD_GNU, gfc_check_rand, NULL, NULL,
+	     i, BT_INTEGER, 4, OPTIONAL);
+
+  /* Compatibility with HP FORTRAN 77/iX Reference.  Note, rand() and ran()
+     use slightly different shoddy multiplicative congruential PRNG.  */
+  make_alias ("ran", GFC_STD_GNU);
+
+  make_generic ("rand", GFC_ISYM_RAND, GFC_STD_GNU);
+
+  add_sym_1 ("range", GFC_ISYM_RANGE, CLASS_INQUIRY, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_range, gfc_simplify_range, NULL,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_generic ("range", GFC_ISYM_RANGE, GFC_STD_F95);
+
+  add_sym_2 ("real", GFC_ISYM_REAL, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_real, gfc_simplify_real, gfc_resolve_real,
+	     a, BT_UNKNOWN, dr, REQUIRED, kind, BT_INTEGER, di, OPTIONAL);
+
+  /* This provides compatibility with g77.  */
+  add_sym_1 ("realpart", GFC_ISYM_REAL, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_GNU,
+	     gfc_check_fn_c, gfc_simplify_realpart, gfc_resolve_realpart,
+	     a, BT_UNKNOWN, dr, REQUIRED);
+
+  add_sym_1 ("float", GFC_ISYM_REAL, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_float, gfc_simplify_float, NULL,
+	     a, BT_INTEGER, di, REQUIRED);
+
+  add_sym_1 ("dfloat", GFC_ISYM_REAL, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dd, GFC_STD_GNU,
+	     gfc_check_float, gfc_simplify_dble, gfc_resolve_dble,
+	     a, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("sngl", GFC_ISYM_REAL, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_sngl, gfc_simplify_sngl, NULL,
+	     a, BT_REAL, dd, REQUIRED);
+
+  make_generic ("real", GFC_ISYM_REAL, GFC_STD_F77);
+
+  add_sym_2 ("rename", GFC_ISYM_RENAME, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER, di,
+	     GFC_STD_GNU, gfc_check_rename, NULL, gfc_resolve_rename,
+	     p1, BT_CHARACTER, dc, REQUIRED, p2, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("rename", GFC_ISYM_RENAME, GFC_STD_GNU);
+  
+  add_sym_2 ("repeat", GFC_ISYM_REPEAT, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_CHARACTER, dc, GFC_STD_F95,
+	     gfc_check_repeat, gfc_simplify_repeat, gfc_resolve_repeat,
+	     stg, BT_CHARACTER, dc, REQUIRED, ncopies, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("repeat", GFC_ISYM_REPEAT, GFC_STD_F95);
+
+  add_sym_4 ("reshape", GFC_ISYM_RESHAPE, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_reshape, gfc_simplify_reshape, gfc_resolve_reshape,
+	     src, BT_REAL, dr, REQUIRED, shp, BT_INTEGER, ii, REQUIRED,
+	     pad, BT_REAL, dr, OPTIONAL, ord, BT_INTEGER, ii, OPTIONAL);
+
+  make_generic ("reshape", GFC_ISYM_RESHAPE, GFC_STD_F95);
+
+  add_sym_1 ("rrspacing", GFC_ISYM_RRSPACING, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_x, gfc_simplify_rrspacing, gfc_resolve_rrspacing,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_generic ("rrspacing", GFC_ISYM_RRSPACING, GFC_STD_F95);
+
+  add_sym_2 ("same_type_as", GFC_ISYM_SAME_TYPE_AS, CLASS_INQUIRY, ACTUAL_NO,
+	     BT_LOGICAL, dl, GFC_STD_F2003,
+	     gfc_check_same_type_as, gfc_simplify_same_type_as, NULL,
+	     a, BT_UNKNOWN, 0, REQUIRED,
+	     b, BT_UNKNOWN, 0, REQUIRED);
+
+  add_sym_2 ("scale", GFC_ISYM_SCALE, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_scale, gfc_simplify_scale, gfc_resolve_scale,
+	     x, BT_REAL, dr, REQUIRED, i, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("scale", GFC_ISYM_SCALE, GFC_STD_F95);
+
+  add_sym_4 ("scan", GFC_ISYM_SCAN, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_scan, gfc_simplify_scan, gfc_resolve_scan,
+	     stg, BT_CHARACTER, dc, REQUIRED, set, BT_CHARACTER, dc, REQUIRED,
+	     bck, BT_LOGICAL, dl, OPTIONAL, kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("scan", GFC_ISYM_SCAN, GFC_STD_F95);
+
+  /* Added for G77 compatibility garbage.  */
+  add_sym_0 ("second", GFC_ISYM_SECOND, CLASS_IMPURE, ACTUAL_NO, BT_REAL,
+	     4, GFC_STD_GNU, NULL, NULL, NULL);
+
+  make_generic ("second", GFC_ISYM_SECOND, GFC_STD_GNU);
+
+  /* Added for G77 compatibility.  */
+  add_sym_1 ("secnds", GFC_ISYM_SECNDS, CLASS_IMPURE, ACTUAL_NO, BT_REAL,
+	     dr, GFC_STD_GNU, gfc_check_secnds, NULL, gfc_resolve_secnds,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_generic ("secnds", GFC_ISYM_SECNDS, GFC_STD_GNU);
+
+  add_sym_1 ("selected_char_kind", GFC_ISYM_SC_KIND, CLASS_TRANSFORMATIONAL,
+	     ACTUAL_NO, BT_INTEGER, di, GFC_STD_F2003,
+	     gfc_check_selected_char_kind, gfc_simplify_selected_char_kind,
+	     NULL, nm, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("selected_char_kind", GFC_ISYM_SC_KIND, GFC_STD_F2003);
+
+  add_sym_1 ("selected_int_kind", GFC_ISYM_SI_KIND, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_INTEGER, di,
+	     GFC_STD_F95, gfc_check_selected_int_kind,
+	     gfc_simplify_selected_int_kind, NULL, r, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("selected_int_kind", GFC_ISYM_SI_KIND, GFC_STD_F95);
+
+  add_sym_3 ("selected_real_kind", GFC_ISYM_SR_KIND, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_INTEGER, di,
+	     GFC_STD_F95, gfc_check_selected_real_kind,
+	     gfc_simplify_selected_real_kind, NULL,
+	     p, BT_INTEGER, di, OPTIONAL, r, BT_INTEGER, di, OPTIONAL,
+	     "radix", BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("selected_real_kind", GFC_ISYM_SR_KIND, GFC_STD_F95);
+
+  add_sym_2 ("set_exponent", GFC_ISYM_SET_EXPONENT, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_set_exponent, gfc_simplify_set_exponent,
+	     gfc_resolve_set_exponent,
+	     x, BT_REAL, dr, REQUIRED, i, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("set_exponent", GFC_ISYM_SET_EXPONENT, GFC_STD_F95);
+
+  add_sym_2 ("shape", GFC_ISYM_SHAPE, CLASS_INQUIRY, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_shape, gfc_simplify_shape, gfc_resolve_shape,
+	     src, BT_REAL, dr, REQUIRED,
+	     kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("shape", GFC_ISYM_SHAPE, GFC_STD_F95);
+
+  add_sym_2 ("shifta", GFC_ISYM_SHIFTA, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_shift, gfc_simplify_shifta, gfc_resolve_shift,
+	     i, BT_INTEGER, di, REQUIRED,
+	     sh, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("shifta", GFC_ISYM_SHIFTA, GFC_STD_F2008);
+
+  add_sym_2 ("shiftl", GFC_ISYM_SHIFTL, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_shift, gfc_simplify_shiftl, gfc_resolve_shift,
+	     i, BT_INTEGER, di, REQUIRED,
+	     sh, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("shiftl", GFC_ISYM_SHIFTL, GFC_STD_F2008);
+
+  add_sym_2 ("shiftr", GFC_ISYM_SHIFTR, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_shift, gfc_simplify_shiftr, gfc_resolve_shift,
+	     i, BT_INTEGER, di, REQUIRED,
+	     sh, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("shiftr", GFC_ISYM_SHIFTR, GFC_STD_F2008);
+
+  add_sym_2 ("sign", GFC_ISYM_SIGN, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_sign, gfc_simplify_sign, gfc_resolve_sign,
+	     a, BT_REAL, dr, REQUIRED, b, BT_REAL, dr, REQUIRED);
+
+  add_sym_2 ("isign", GFC_ISYM_SIGN, CLASS_ELEMENTAL, ACTUAL_YES, BT_INTEGER, di, GFC_STD_F77,
+	     NULL, gfc_simplify_sign, gfc_resolve_sign,
+	     a, BT_INTEGER, di, REQUIRED, b, BT_INTEGER, di, REQUIRED);
+
+  add_sym_2 ("dsign", GFC_ISYM_SIGN, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_x_yd, gfc_simplify_sign, gfc_resolve_sign,
+	     a, BT_REAL, dd, REQUIRED, b, BT_REAL, dd, REQUIRED);
+
+  make_generic ("sign", GFC_ISYM_SIGN, GFC_STD_F77);
+
+  add_sym_2 ("signal", GFC_ISYM_SIGNAL, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, gfc_check_signal, NULL, gfc_resolve_signal,
+	     num, BT_INTEGER, di, REQUIRED, han, BT_VOID, 0, REQUIRED);
+
+  make_generic ("signal", GFC_ISYM_SIGNAL, GFC_STD_GNU);
+
+  add_sym_1 ("sin", GFC_ISYM_SIN, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_rc, gfc_simplify_sin, gfc_resolve_sin,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dsin", GFC_ISYM_SIN, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_sin, gfc_resolve_sin,
+	     x, BT_REAL, dd, REQUIRED);
+
+  add_sym_1 ("csin", GFC_ISYM_SIN, CLASS_ELEMENTAL, ACTUAL_YES, BT_COMPLEX, dz, GFC_STD_F77,
+	     NULL, gfc_simplify_sin, gfc_resolve_sin,
+	     x, BT_COMPLEX, dz, REQUIRED);
+
+  add_sym_1 ("zsin", GFC_ISYM_SIN, CLASS_ELEMENTAL, ACTUAL_YES, BT_COMPLEX, dd, GFC_STD_GNU,
+	     NULL, gfc_simplify_sin, gfc_resolve_sin,
+	     x, BT_COMPLEX, dd, REQUIRED);
+
+  make_alias ("cdsin", GFC_STD_GNU);
+
+  make_generic ("sin", GFC_ISYM_SIN, GFC_STD_F77);
+
+  add_sym_1 ("sinh", GFC_ISYM_SINH, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_rc2008, gfc_simplify_sinh, gfc_resolve_sinh,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dsinh", GFC_ISYM_SINH,CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_sinh, gfc_resolve_sinh,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("sinh", GFC_ISYM_SINH, GFC_STD_F77);
+
+  add_sym_3 ("size", GFC_ISYM_SIZE, CLASS_INQUIRY, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_size, gfc_simplify_size, gfc_resolve_size,
+	     ar, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+	     kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("size", GFC_ISYM_SIZE, GFC_STD_F95);
+
+  add_sym_1 ("sizeof", GFC_ISYM_SIZEOF, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER, ii,
+	     GFC_STD_GNU, gfc_check_sizeof, NULL, NULL,
+	     x, BT_UNKNOWN, 0, REQUIRED);
+
+  make_generic ("sizeof", GFC_ISYM_SIZEOF, GFC_STD_GNU);
+
+  /* C_SIZEOF is part of ISO_C_BINDING.  */
+  add_sym_1 ("c_sizeof", GFC_ISYM_C_SIZEOF, CLASS_INQUIRY, ACTUAL_NO,
+	     BT_INTEGER, ii, GFC_STD_F2008, gfc_check_c_sizeof, NULL, NULL,
+	     x, BT_UNKNOWN, 0, REQUIRED);
+  make_from_module();
+
+  /* COMPILER_OPTIONS and COMPILER_VERSION are part of ISO_FORTRAN_ENV.  */  
+  add_sym_0 ("compiler_options", GFC_ISYM_COMPILER_OPTIONS, CLASS_INQUIRY,
+	     ACTUAL_NO, BT_CHARACTER, dc, GFC_STD_F2008,
+	     NULL, gfc_simplify_compiler_options, NULL);
+  make_from_module();
+
+  add_sym_0 ("compiler_version", GFC_ISYM_COMPILER_VERSION, CLASS_INQUIRY,
+	     ACTUAL_NO, BT_CHARACTER, dc, GFC_STD_F2008,
+	     NULL, gfc_simplify_compiler_version, NULL);
+  make_from_module();
+
+  add_sym_1 ("spacing", GFC_ISYM_SPACING, CLASS_ELEMENTAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_x, gfc_simplify_spacing, gfc_resolve_spacing,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_generic ("spacing", GFC_ISYM_SPACING, GFC_STD_F95);
+
+  add_sym_3 ("spread", GFC_ISYM_SPREAD, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_spread, gfc_simplify_spread, gfc_resolve_spread,
+	     src, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, REQUIRED,
+	     ncopies, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("spread", GFC_ISYM_SPREAD, GFC_STD_F95);
+
+  add_sym_1 ("sqrt", GFC_ISYM_SQRT, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_rc, gfc_simplify_sqrt, gfc_resolve_sqrt,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dsqrt", GFC_ISYM_SQRT, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_sqrt, gfc_resolve_sqrt,
+	     x, BT_REAL, dd, REQUIRED);
+
+  add_sym_1 ("csqrt", GFC_ISYM_SQRT, CLASS_ELEMENTAL, ACTUAL_YES, BT_COMPLEX, dz, GFC_STD_F77,
+	     NULL, gfc_simplify_sqrt, gfc_resolve_sqrt,
+	     x, BT_COMPLEX, dz, REQUIRED);
+
+  add_sym_1 ("zsqrt", GFC_ISYM_SQRT, CLASS_ELEMENTAL, ACTUAL_YES, BT_COMPLEX, dd, GFC_STD_GNU,
+	     NULL, gfc_simplify_sqrt, gfc_resolve_sqrt,
+	     x, BT_COMPLEX, dd, REQUIRED);
+
+  make_alias ("cdsqrt", GFC_STD_GNU);
+
+  make_generic ("sqrt", GFC_ISYM_SQRT, GFC_STD_F77);
+
+  add_sym_2_intent ("stat", GFC_ISYM_STAT, CLASS_IMPURE, ACTUAL_NO,
+		    BT_INTEGER, di, GFC_STD_GNU,
+		    gfc_check_stat, NULL, gfc_resolve_stat,
+		    nm, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+		    vl, BT_INTEGER, di, REQUIRED, INTENT_OUT);
+
+  make_generic ("stat", GFC_ISYM_STAT, GFC_STD_GNU);
+
+  add_sym_2 ("storage_size", GFC_ISYM_STORAGE_SIZE, CLASS_INQUIRY, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_storage_size, NULL, gfc_resolve_storage_size,
+	     a, BT_UNKNOWN, 0, REQUIRED,
+	     kind, BT_INTEGER, di, OPTIONAL);
+  
+  add_sym_3red ("sum", GFC_ISYM_SUM, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+		gfc_check_product_sum, gfc_simplify_sum, gfc_resolve_sum,
+		ar, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+		msk, BT_LOGICAL, dl, OPTIONAL);
+
+  make_generic ("sum", GFC_ISYM_SUM, GFC_STD_F95);
+
+  add_sym_2 ("symlnk", GFC_ISYM_SYMLNK, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER, di,
+	     GFC_STD_GNU, gfc_check_symlnk, NULL, gfc_resolve_symlnk,
+	     p1, BT_CHARACTER, dc, REQUIRED, p2, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("symlnk", GFC_ISYM_SYMLNK, GFC_STD_GNU);
+
+  add_sym_1 ("system", GFC_ISYM_SYSTEM, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER, di,
+	     GFC_STD_GNU, NULL, NULL, NULL,
+	     com, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("system", GFC_ISYM_SYSTEM, GFC_STD_GNU);
+
+  add_sym_1 ("tan", GFC_ISYM_TAN, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_rc2008, gfc_simplify_tan, gfc_resolve_tan,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dtan", GFC_ISYM_TAN, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_tan, gfc_resolve_tan,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("tan", GFC_ISYM_TAN, GFC_STD_F77);
+
+  add_sym_1 ("tanh", GFC_ISYM_TANH, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dr, GFC_STD_F77,
+	     gfc_check_fn_rc2008, gfc_simplify_tanh, gfc_resolve_tanh,
+	     x, BT_REAL, dr, REQUIRED);
+
+  add_sym_1 ("dtanh", GFC_ISYM_TANH, CLASS_ELEMENTAL, ACTUAL_YES, BT_REAL, dd, GFC_STD_F77,
+	     gfc_check_fn_d, gfc_simplify_tanh, gfc_resolve_tanh,
+	     x, BT_REAL, dd, REQUIRED);
+
+  make_generic ("tanh", GFC_ISYM_TANH, GFC_STD_F77);
+
+  add_sym_2 ("this_image", GFC_ISYM_THIS_IMAGE, CLASS_INQUIRY, ACTUAL_NO, BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_this_image, gfc_simplify_this_image, gfc_resolve_this_image,
+	     ca, BT_REAL, dr, OPTIONAL, dm, BT_INTEGER, ii, OPTIONAL);
+
+  add_sym_0 ("time", GFC_ISYM_TIME, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, NULL, NULL, gfc_resolve_time);
+
+  make_generic ("time", GFC_ISYM_TIME, GFC_STD_GNU);
+
+  add_sym_0 ("time8", GFC_ISYM_TIME8, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, NULL, NULL, gfc_resolve_time8);
+
+  make_generic ("time8", GFC_ISYM_TIME8, GFC_STD_GNU);
+
+  add_sym_1 ("tiny", GFC_ISYM_TINY, CLASS_INQUIRY, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_x, gfc_simplify_tiny, NULL,
+	     x, BT_REAL, dr, REQUIRED);
+
+  make_generic ("tiny", GFC_ISYM_TINY, GFC_STD_F95);
+
+  add_sym_1 ("trailz", GFC_ISYM_TRAILZ, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F2008,
+	     gfc_check_i, gfc_simplify_trailz, NULL,
+	     i, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("trailz", GFC_ISYM_TRAILZ, GFC_STD_F2008);
+
+  add_sym_3 ("transfer", GFC_ISYM_TRANSFER, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_transfer, gfc_simplify_transfer, gfc_resolve_transfer,
+	     src, BT_REAL, dr, REQUIRED, mo, BT_REAL, dr, REQUIRED,
+	     sz, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("transfer", GFC_ISYM_TRANSFER, GFC_STD_F95);
+
+  add_sym_1 ("transpose", GFC_ISYM_TRANSPOSE, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_transpose, gfc_simplify_transpose, gfc_resolve_transpose,
+	     m, BT_REAL, dr, REQUIRED);
+
+  make_generic ("transpose", GFC_ISYM_TRANSPOSE, GFC_STD_F95);
+
+  add_sym_1 ("trim", GFC_ISYM_TRIM, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_CHARACTER, dc, GFC_STD_F95,
+	     gfc_check_trim, gfc_simplify_trim, gfc_resolve_trim,
+	     stg, BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("trim", GFC_ISYM_TRIM, GFC_STD_F95);
+
+  add_sym_1 ("ttynam", GFC_ISYM_TTYNAM, CLASS_IMPURE, ACTUAL_NO, BT_CHARACTER,
+	     0, GFC_STD_GNU, gfc_check_ttynam, NULL, gfc_resolve_ttynam,
+	     ut, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("ttynam", GFC_ISYM_TTYNAM, GFC_STD_GNU);
+
+  add_sym_3 ("ubound", GFC_ISYM_UBOUND, CLASS_INQUIRY, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_ubound, gfc_simplify_ubound, gfc_resolve_ubound,
+	     ar, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+	     kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("ubound", GFC_ISYM_UBOUND, GFC_STD_F95);
+
+  add_sym_3 ("ucobound", GFC_ISYM_UCOBOUND, CLASS_INQUIRY, ACTUAL_NO,
+	    BT_INTEGER, di, GFC_STD_F2008,
+	    gfc_check_ucobound, gfc_simplify_ucobound, gfc_resolve_ucobound,
+	    ca, BT_REAL, dr, REQUIRED, dm, BT_INTEGER, ii, OPTIONAL,
+	    kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("ucobound", GFC_ISYM_UCOBOUND, GFC_STD_F2008);
+
+  /* g77 compatibility for UMASK.  */
+  add_sym_1 ("umask", GFC_ISYM_UMASK, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER, di,
+	     GFC_STD_GNU, gfc_check_umask, NULL, gfc_resolve_umask,
+	     msk, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("umask", GFC_ISYM_UMASK, GFC_STD_GNU);
+
+  /* g77 compatibility for UNLINK.  */
+  add_sym_1 ("unlink", GFC_ISYM_UNLINK, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
+	     di, GFC_STD_GNU, gfc_check_unlink, NULL, gfc_resolve_unlink,
+	     "path", BT_CHARACTER, dc, REQUIRED);
+
+  make_generic ("unlink", GFC_ISYM_UNLINK, GFC_STD_GNU);
+
+  add_sym_3 ("unpack", GFC_ISYM_UNPACK, CLASS_TRANSFORMATIONAL, ACTUAL_NO, BT_REAL, dr, GFC_STD_F95,
+	     gfc_check_unpack, gfc_simplify_unpack, gfc_resolve_unpack,
+	     v, BT_REAL, dr, REQUIRED, msk, BT_LOGICAL, dl, REQUIRED,
+	     f, BT_REAL, dr, REQUIRED);
+
+  make_generic ("unpack", GFC_ISYM_UNPACK, GFC_STD_F95);
+
+  add_sym_4 ("verify", GFC_ISYM_VERIFY, CLASS_ELEMENTAL, ACTUAL_NO,
+	     BT_INTEGER, di, GFC_STD_F95,
+	     gfc_check_verify, gfc_simplify_verify, gfc_resolve_verify,
+	     stg, BT_CHARACTER, dc, REQUIRED, set, BT_CHARACTER, dc, REQUIRED,
+	     bck, BT_LOGICAL, dl, OPTIONAL, kind, BT_INTEGER, di, OPTIONAL);
+
+  make_generic ("verify", GFC_ISYM_VERIFY, GFC_STD_F95);
+    
+  add_sym_1 ("loc", GFC_ISYM_LOC, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER, ii,
+	     GFC_STD_GNU, gfc_check_loc, NULL, gfc_resolve_loc,
+	     x, BT_UNKNOWN, 0, REQUIRED);
+		
+  make_generic ("loc", GFC_ISYM_LOC, GFC_STD_GNU);
+}
+
+
+/* Add intrinsic subroutines.  */
+
+static void
+add_subroutines (void)
+{
+  /* Argument names as in the standard (to be used as argument keywords).  */
+  const char
+    *h = "harvest", *dt = "date", *vl = "values", *pt = "put",
+    *c = "count", *tm = "time", *tp = "topos", *gt = "get",
+    *t = "to", *zn = "zone", *fp = "frompos", *cm = "count_max",
+    *f = "from", *sz = "size", *ln = "len", *cr = "count_rate",
+    *com = "command", *length = "length", *st = "status",
+    *val = "value", *num = "number", *name = "name",
+    *trim_name = "trim_name", *ut = "unit", *han = "handler",
+    *sec = "seconds", *res = "result", *of = "offset", *md = "mode",
+    *whence = "whence", *pos = "pos", *ptr = "ptr", *p1 = "path1",
+    *p2 = "path2", *msk = "mask", *old = "old";
+
+  int di, dr, dc, dl, ii;
+
+  di = gfc_default_integer_kind;
+  dr = gfc_default_real_kind;
+  dc = gfc_default_character_kind;
+  dl = gfc_default_logical_kind;
+  ii = gfc_index_integer_kind;
+
+  add_sym_0s ("abort", GFC_ISYM_ABORT, GFC_STD_GNU, NULL);
+
+  make_noreturn();
+
+  add_sym_1s ("cpu_time", GFC_ISYM_CPU_TIME, CLASS_IMPURE, BT_UNKNOWN, 0,
+	      GFC_STD_F95, gfc_check_cpu_time, NULL, gfc_resolve_cpu_time,
+	      tm, BT_REAL, dr, REQUIRED, INTENT_OUT);
+
+  /* More G77 compatibility garbage.  */
+  add_sym_2s ("ctime", GFC_ISYM_CTIME, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_ctime_sub, NULL, gfc_resolve_ctime_sub,
+	      tm, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      res, BT_CHARACTER, dc, REQUIRED, INTENT_OUT);
+
+  add_sym_1s ("idate", GFC_ISYM_IDATE, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_itime_idate, NULL, gfc_resolve_idate,
+	      vl, BT_INTEGER, 4, REQUIRED, INTENT_OUT);
+
+  add_sym_1s ("itime", GFC_ISYM_ITIME, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_itime_idate, NULL, gfc_resolve_itime,
+	      vl, BT_INTEGER, 4, REQUIRED, INTENT_OUT);
+
+  add_sym_2s ("ltime", GFC_ISYM_LTIME, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_ltime_gmtime, NULL, gfc_resolve_ltime,
+	      tm, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      vl, BT_INTEGER, di, REQUIRED, INTENT_OUT);
+
+  add_sym_2s ("gmtime", GFC_ISYM_GMTIME, CLASS_IMPURE, BT_UNKNOWN, 0,
+	      GFC_STD_GNU, gfc_check_ltime_gmtime, NULL, gfc_resolve_gmtime,
+	      tm, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      vl, BT_INTEGER, di, REQUIRED, INTENT_OUT);
+
+  add_sym_1s ("second", GFC_ISYM_SECOND, CLASS_IMPURE, BT_UNKNOWN, 0,
+	      GFC_STD_GNU, gfc_check_second_sub, NULL, gfc_resolve_second_sub,
+	      tm, BT_REAL, dr, REQUIRED, INTENT_OUT);
+
+  add_sym_2s ("chdir", GFC_ISYM_CHDIR, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_chdir_sub, NULL, gfc_resolve_chdir_sub,
+	      name, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_3s ("chmod", GFC_ISYM_CHMOD, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_chmod_sub, NULL, gfc_resolve_chmod_sub,
+	      name, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      md, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_4s ("date_and_time", GFC_ISYM_DATE_AND_TIME, CLASS_IMPURE, BT_UNKNOWN,
+	      0, GFC_STD_F95, gfc_check_date_and_time, NULL, NULL,
+	      dt, BT_CHARACTER, dc, OPTIONAL, INTENT_OUT,
+	      tm, BT_CHARACTER, dc, OPTIONAL, INTENT_OUT,
+	      zn, BT_CHARACTER, dc, OPTIONAL, INTENT_OUT,
+	      vl, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  /* More G77 compatibility garbage.  */
+  add_sym_2s ("etime", GFC_ISYM_ETIME, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_dtime_etime_sub, NULL, gfc_resolve_etime_sub,
+	      vl, BT_REAL, 4, REQUIRED, INTENT_OUT,
+	      tm, BT_REAL, 4, REQUIRED, INTENT_OUT);
+
+  add_sym_2s ("dtime", GFC_ISYM_DTIME, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_dtime_etime_sub, NULL, gfc_resolve_dtime_sub,
+	      vl, BT_REAL, 4, REQUIRED, INTENT_OUT,
+	      tm, BT_REAL, 4, REQUIRED, INTENT_OUT);
+
+  add_sym_5s ("execute_command_line", GFC_ISYM_EXECUTE_COMMAND_LINE,
+	      CLASS_IMPURE , BT_UNKNOWN, 0, GFC_STD_F2008,
+	      NULL, NULL, gfc_resolve_execute_command_line,
+	      "command", BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      "wait", BT_LOGICAL, dl, OPTIONAL, INTENT_IN,
+	      "exitstat", BT_INTEGER, di, OPTIONAL, INTENT_INOUT,
+	      "cmdstat", BT_INTEGER, di, OPTIONAL, INTENT_OUT,
+	      "cmdmsg", BT_CHARACTER, dc, OPTIONAL, INTENT_INOUT);
+
+  add_sym_1s ("fdate", GFC_ISYM_FDATE, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_fdate_sub, NULL, gfc_resolve_fdate_sub,
+	      dt, BT_CHARACTER, dc, REQUIRED, INTENT_OUT);
+
+  add_sym_1s ("gerror", GFC_ISYM_GERROR, CLASS_IMPURE, BT_UNKNOWN,
+	      0, GFC_STD_GNU, gfc_check_gerror, NULL, gfc_resolve_gerror,
+	      res, BT_CHARACTER, dc, REQUIRED, INTENT_OUT);
+
+  add_sym_2s ("getcwd", GFC_ISYM_GETCWD, CLASS_IMPURE, BT_UNKNOWN, 0,
+	      GFC_STD_GNU, gfc_check_getcwd_sub, NULL, gfc_resolve_getcwd_sub,
+	      c, BT_CHARACTER, dc, REQUIRED, INTENT_OUT,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_2s ("getenv", GFC_ISYM_GETENV, CLASS_IMPURE, BT_UNKNOWN,
+	      0, GFC_STD_GNU, NULL, NULL, NULL,
+	      name, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      val, BT_CHARACTER, dc, REQUIRED, INTENT_OUT);
+
+  add_sym_2s ("getarg", GFC_ISYM_GETARG, CLASS_IMPURE, BT_UNKNOWN,
+	      0, GFC_STD_GNU, gfc_check_getarg, NULL, gfc_resolve_getarg,
+	      pos, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      val, BT_CHARACTER, dc, REQUIRED, INTENT_OUT);
+
+  add_sym_1s ("getlog", GFC_ISYM_GETLOG, CLASS_IMPURE, BT_UNKNOWN,
+	      0, GFC_STD_GNU, gfc_check_getlog, NULL, gfc_resolve_getlog,
+	      c, BT_CHARACTER, dc, REQUIRED, INTENT_OUT);
+
+  /* F2003 commandline routines.  */
+
+  add_sym_3s ("get_command", GFC_ISYM_GET_COMMAND, CLASS_IMPURE,
+	      BT_UNKNOWN, 0, GFC_STD_F2003,
+	      NULL, NULL, gfc_resolve_get_command,
+	      com, BT_CHARACTER, dc, OPTIONAL, INTENT_OUT,
+	      length, BT_INTEGER, di, OPTIONAL, INTENT_OUT,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_4s ("get_command_argument", GFC_ISYM_GET_COMMAND_ARGUMENT,
+	      CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_F2003, NULL, NULL,
+	      gfc_resolve_get_command_argument,
+	      num, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      val, BT_CHARACTER, dc, OPTIONAL, INTENT_OUT,
+	      length, BT_INTEGER, di, OPTIONAL, INTENT_OUT,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  /* F2003 subroutine to get environment variables.  */
+
+  add_sym_5s ("get_environment_variable", GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
+	      CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_F2003,
+	      NULL, NULL, gfc_resolve_get_environment_variable,
+	      name, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      val, BT_CHARACTER, dc, OPTIONAL, INTENT_OUT,
+	      length, BT_INTEGER, di, OPTIONAL, INTENT_OUT,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT,
+	      trim_name, BT_LOGICAL, dl, OPTIONAL, INTENT_IN);
+
+  add_sym_2s ("move_alloc", GFC_ISYM_MOVE_ALLOC, CLASS_PURE, BT_UNKNOWN, 0,
+	      GFC_STD_F2003,
+	      gfc_check_move_alloc, NULL, NULL,
+	      f, BT_UNKNOWN, 0, REQUIRED, INTENT_INOUT,
+	      t, BT_UNKNOWN, 0, REQUIRED, INTENT_OUT);
+
+  add_sym_5s ("mvbits", GFC_ISYM_MVBITS, CLASS_ELEMENTAL, BT_UNKNOWN, 0,
+	      GFC_STD_F95, gfc_check_mvbits, gfc_simplify_mvbits,
+	      gfc_resolve_mvbits,
+	      f, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      fp, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      ln, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      t, BT_INTEGER, di, REQUIRED, INTENT_INOUT,
+	      tp, BT_INTEGER, di, REQUIRED, INTENT_IN);
+
+  add_sym_1s ("random_number", GFC_ISYM_RANDOM_NUMBER, CLASS_IMPURE,
+	      BT_UNKNOWN, 0, GFC_STD_F95,
+	      gfc_check_random_number, NULL, gfc_resolve_random_number,
+	      h, BT_REAL, dr, REQUIRED, INTENT_OUT);
+
+  add_sym_3s ("random_seed", GFC_ISYM_RANDOM_SEED, CLASS_IMPURE,
+	      BT_UNKNOWN, 0, GFC_STD_F95,
+	      gfc_check_random_seed, NULL, gfc_resolve_random_seed,
+	      sz, BT_INTEGER, di, OPTIONAL, INTENT_OUT,
+	      pt, BT_INTEGER, di, OPTIONAL, INTENT_IN,
+	      gt, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  /* More G77 compatibility garbage.  */
+  add_sym_3s ("alarm", GFC_ISYM_ALARM, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_alarm_sub, NULL, gfc_resolve_alarm_sub,
+	      sec, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      han, BT_UNKNOWN, 0, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_1s ("srand", GFC_ISYM_SRAND, CLASS_IMPURE, BT_UNKNOWN,
+	      di, GFC_STD_GNU, gfc_check_srand, NULL, gfc_resolve_srand,
+	      "seed", BT_INTEGER, 4, REQUIRED, INTENT_IN);
+
+  add_sym_1s ("exit", GFC_ISYM_EXIT, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_exit, NULL, gfc_resolve_exit,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_IN);
+
+  make_noreturn();
+
+  add_sym_3s ("fgetc", GFC_ISYM_FGETC, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_fgetputc_sub, NULL, gfc_resolve_fgetc_sub,
+	      ut, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      c, BT_CHARACTER, dc, REQUIRED, INTENT_OUT,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_2s ("fget", GFC_ISYM_FGET, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_fgetput_sub, NULL, gfc_resolve_fget_sub,
+	      c, BT_CHARACTER, dc, REQUIRED, INTENT_OUT,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_1s ("flush", GFC_ISYM_FLUSH, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_flush, NULL, gfc_resolve_flush,
+	      ut, BT_INTEGER, di, OPTIONAL, INTENT_IN);
+
+  add_sym_3s ("fputc", GFC_ISYM_FPUTC, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_fgetputc_sub, NULL, gfc_resolve_fputc_sub,
+	      ut, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      c, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_2s ("fput", GFC_ISYM_FPUT, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_fgetput_sub, NULL, gfc_resolve_fput_sub,
+	      c, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_1s ("free", GFC_ISYM_FREE, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_free, NULL, gfc_resolve_free,
+	      ptr, BT_INTEGER, ii, REQUIRED, INTENT_INOUT);
+
+  add_sym_4s ("fseek", GFC_ISYM_FSEEK, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_fseek_sub, NULL, gfc_resolve_fseek_sub,
+	      ut, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      of, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      whence, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_2s ("ftell", GFC_ISYM_FTELL, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_ftell_sub, NULL, gfc_resolve_ftell_sub,
+	      ut, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      of, BT_INTEGER, ii, REQUIRED, INTENT_OUT);
+
+  add_sym_2s ("hostnm", GFC_ISYM_HOSTNM, CLASS_IMPURE, BT_UNKNOWN, 0,
+	      GFC_STD_GNU, gfc_check_hostnm_sub, NULL, gfc_resolve_hostnm_sub,
+	      c, BT_CHARACTER, dc, REQUIRED, INTENT_OUT,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_3s ("kill", GFC_ISYM_KILL, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_kill_sub, NULL, gfc_resolve_kill_sub,
+	      c, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      val, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_3s ("link", GFC_ISYM_LINK, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_link_sub, NULL, gfc_resolve_link_sub,
+	      p1, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      p2, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_1s ("perror", GFC_ISYM_PERROR, CLASS_IMPURE, BT_UNKNOWN,
+	      0, GFC_STD_GNU, gfc_check_perror, NULL, gfc_resolve_perror,
+	      "string", BT_CHARACTER, dc, REQUIRED, INTENT_IN);
+
+  add_sym_3s ("rename", GFC_ISYM_RENAME, CLASS_IMPURE, BT_UNKNOWN, 0,
+	      GFC_STD_GNU, gfc_check_rename_sub, NULL, gfc_resolve_rename_sub,
+	      p1, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      p2, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_1s ("sleep", GFC_ISYM_SLEEP, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_sleep_sub, NULL, gfc_resolve_sleep_sub,
+	      sec, BT_INTEGER, di, REQUIRED, INTENT_IN);
+
+  add_sym_3s ("fstat", GFC_ISYM_FSTAT, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_fstat_sub, NULL, gfc_resolve_fstat_sub,
+	      ut, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      vl, BT_INTEGER, di, REQUIRED, INTENT_OUT,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_3s ("lstat", GFC_ISYM_LSTAT, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_stat_sub, NULL, gfc_resolve_lstat_sub,
+	      name, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      vl, BT_INTEGER, di, REQUIRED, INTENT_OUT,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_3s ("stat", GFC_ISYM_STAT, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_stat_sub, NULL, gfc_resolve_stat_sub,
+	      name, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      vl, BT_INTEGER, di, REQUIRED, INTENT_OUT,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_3s ("signal", GFC_ISYM_SIGNAL, CLASS_IMPURE, BT_UNKNOWN, 0,
+	      GFC_STD_GNU, gfc_check_signal_sub, NULL, gfc_resolve_signal_sub,
+	      num, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      han, BT_UNKNOWN, 0, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_3s ("symlnk", GFC_ISYM_SYMLINK, CLASS_IMPURE, BT_UNKNOWN, 0,
+	      GFC_STD_GNU, gfc_check_symlnk_sub, NULL, gfc_resolve_symlnk_sub,
+	      p1, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      p2, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_2s ("system", GFC_ISYM_SYSTEM, CLASS_IMPURE, BT_UNKNOWN,
+	      0, GFC_STD_GNU, NULL, NULL, gfc_resolve_system_sub,
+	      com, BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_3s ("system_clock", GFC_ISYM_SYSTEM_CLOCK, CLASS_IMPURE,
+	      BT_UNKNOWN, 0, GFC_STD_F95,
+	      gfc_check_system_clock, NULL, gfc_resolve_system_clock,
+	      c, BT_INTEGER, di, OPTIONAL, INTENT_OUT,
+	      cr, BT_INTEGER, di, OPTIONAL, INTENT_OUT,
+	      cm, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_2s ("ttynam", GFC_ISYM_TTYNAM, CLASS_IMPURE, BT_UNKNOWN, 0,
+	      GFC_STD_GNU, gfc_check_ttynam_sub, NULL, gfc_resolve_ttynam_sub,
+	      ut, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      name, BT_CHARACTER, dc, REQUIRED, INTENT_OUT);
+
+  add_sym_2s ("umask", GFC_ISYM_UMASK, CLASS_IMPURE, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_umask_sub, NULL, gfc_resolve_umask_sub,
+	      msk, BT_INTEGER, di, REQUIRED, INTENT_IN,
+	      old, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+
+  add_sym_2s ("unlink", GFC_ISYM_UNLINK, CLASS_IMPURE, BT_UNKNOWN, 0,
+	      GFC_STD_GNU, gfc_check_unlink_sub, NULL, gfc_resolve_unlink_sub,
+	      "path", BT_CHARACTER, dc, REQUIRED, INTENT_IN,
+	      st, BT_INTEGER, di, OPTIONAL, INTENT_OUT);
+}
+
+
+/* Add a function to the list of conversion symbols.  */
+
+static void
+add_conv (bt from_type, int from_kind, bt to_type, int to_kind, int standard)
+{
+  gfc_typespec from, to;
+  gfc_intrinsic_sym *sym;
+
+  if (sizing == SZ_CONVS)
+    {
+      nconv++;
+      return;
+    }
+
+  gfc_clear_ts (&from);
+  from.type = from_type;
+  from.kind = from_kind;
+
+  gfc_clear_ts (&to);
+  to.type = to_type;
+  to.kind = to_kind;
+
+  sym = conversion + nconv;
+
+  sym->name = conv_name (&from, &to);
+  sym->lib_name = sym->name;
+  sym->simplify.cc = gfc_convert_constant;
+  sym->standard = standard;
+  sym->elemental = 1;
+  sym->pure = 1;
+  sym->conversion = 1;
+  sym->ts = to;
+  sym->id = GFC_ISYM_CONVERSION;
+
+  nconv++;
+}
+
+
+/* Create gfc_intrinsic_sym nodes for all intrinsic conversion
+   functions by looping over the kind tables.  */
+
+static void
+add_conversions (void)
+{
+  int i, j;
+
+  /* Integer-Integer conversions.  */
+  for (i = 0; gfc_integer_kinds[i].kind != 0; i++)
+    for (j = 0; gfc_integer_kinds[j].kind != 0; j++)
+      {
+	if (i == j)
+	  continue;
+
+	add_conv (BT_INTEGER, gfc_integer_kinds[i].kind,
+		  BT_INTEGER, gfc_integer_kinds[j].kind, GFC_STD_F77);
+      }
+
+  /* Integer-Real/Complex conversions.  */
+  for (i = 0; gfc_integer_kinds[i].kind != 0; i++)
+    for (j = 0; gfc_real_kinds[j].kind != 0; j++)
+      {
+	add_conv (BT_INTEGER, gfc_integer_kinds[i].kind,
+		  BT_REAL, gfc_real_kinds[j].kind, GFC_STD_F77);
+
+	add_conv (BT_REAL, gfc_real_kinds[j].kind,
+		  BT_INTEGER, gfc_integer_kinds[i].kind, GFC_STD_F77);
+
+	add_conv (BT_INTEGER, gfc_integer_kinds[i].kind,
+		  BT_COMPLEX, gfc_real_kinds[j].kind, GFC_STD_F77);
+
+	add_conv (BT_COMPLEX, gfc_real_kinds[j].kind,
+		  BT_INTEGER, gfc_integer_kinds[i].kind, GFC_STD_F77);
+      }
+
+  if ((gfc_option.allow_std & GFC_STD_LEGACY) != 0)
+    {
+      /* Hollerith-Integer conversions.  */
+      for (i = 0; gfc_integer_kinds[i].kind != 0; i++)
+	add_conv (BT_HOLLERITH, gfc_default_character_kind,
+		  BT_INTEGER, gfc_integer_kinds[i].kind, GFC_STD_LEGACY);
+      /* Hollerith-Real conversions.  */
+      for (i = 0; gfc_real_kinds[i].kind != 0; i++)
+	add_conv (BT_HOLLERITH, gfc_default_character_kind,
+		  BT_REAL, gfc_real_kinds[i].kind, GFC_STD_LEGACY);
+      /* Hollerith-Complex conversions.  */
+      for (i = 0; gfc_real_kinds[i].kind != 0; i++)
+	add_conv (BT_HOLLERITH, gfc_default_character_kind,
+		  BT_COMPLEX, gfc_real_kinds[i].kind, GFC_STD_LEGACY);
+
+      /* Hollerith-Character conversions.  */
+      add_conv (BT_HOLLERITH, gfc_default_character_kind, BT_CHARACTER,
+		  gfc_default_character_kind, GFC_STD_LEGACY);
+
+      /* Hollerith-Logical conversions.  */
+      for (i = 0; gfc_logical_kinds[i].kind != 0; i++)
+	add_conv (BT_HOLLERITH, gfc_default_character_kind,
+		  BT_LOGICAL, gfc_logical_kinds[i].kind, GFC_STD_LEGACY);
+    }
+
+  /* Real/Complex - Real/Complex conversions.  */
+  for (i = 0; gfc_real_kinds[i].kind != 0; i++)
+    for (j = 0; gfc_real_kinds[j].kind != 0; j++)
+      {
+	if (i != j)
+	  {
+	    add_conv (BT_REAL, gfc_real_kinds[i].kind,
+		      BT_REAL, gfc_real_kinds[j].kind, GFC_STD_F77);
+
+	    add_conv (BT_COMPLEX, gfc_real_kinds[i].kind,
+		      BT_COMPLEX, gfc_real_kinds[j].kind, GFC_STD_F77);
+	  }
+
+	add_conv (BT_REAL, gfc_real_kinds[i].kind,
+		  BT_COMPLEX, gfc_real_kinds[j].kind, GFC_STD_F77);
+
+	add_conv (BT_COMPLEX, gfc_real_kinds[i].kind,
+		  BT_REAL, gfc_real_kinds[j].kind, GFC_STD_F77);
+      }
+
+  /* Logical/Logical kind conversion.  */
+  for (i = 0; gfc_logical_kinds[i].kind; i++)
+    for (j = 0; gfc_logical_kinds[j].kind; j++)
+      {
+	if (i == j)
+	  continue;
+
+	add_conv (BT_LOGICAL, gfc_logical_kinds[i].kind,
+		  BT_LOGICAL, gfc_logical_kinds[j].kind, GFC_STD_F77);
+      }
+
+  /* Integer-Logical and Logical-Integer conversions.  */
+  if ((gfc_option.allow_std & GFC_STD_LEGACY) != 0)
+    for (i=0; gfc_integer_kinds[i].kind; i++)
+      for (j=0; gfc_logical_kinds[j].kind; j++)
+	{
+	  add_conv (BT_INTEGER, gfc_integer_kinds[i].kind,
+		    BT_LOGICAL, gfc_logical_kinds[j].kind, GFC_STD_LEGACY);
+	  add_conv (BT_LOGICAL, gfc_logical_kinds[j].kind,
+		    BT_INTEGER, gfc_integer_kinds[i].kind, GFC_STD_LEGACY);
+	}
+}
+
+
+static void
+add_char_conversions (void)
+{
+  int n, i, j;
+
+  /* Count possible conversions.  */
+  for (i = 0; gfc_character_kinds[i].kind != 0; i++)
+    for (j = 0; gfc_character_kinds[j].kind != 0; j++)
+      if (i != j)
+	ncharconv++;
+
+  /* Allocate memory.  */
+  char_conversions = XCNEWVEC (gfc_intrinsic_sym, ncharconv);
+
+  /* Add the conversions themselves.  */
+  n = 0;
+  for (i = 0; gfc_character_kinds[i].kind != 0; i++)
+    for (j = 0; gfc_character_kinds[j].kind != 0; j++)
+      {
+	gfc_typespec from, to;
+
+	if (i == j)
+	  continue;
+
+	gfc_clear_ts (&from);
+	from.type = BT_CHARACTER;
+	from.kind = gfc_character_kinds[i].kind;
+
+	gfc_clear_ts (&to);
+	to.type = BT_CHARACTER;
+	to.kind = gfc_character_kinds[j].kind;
+
+	char_conversions[n].name = conv_name (&from, &to);
+	char_conversions[n].lib_name = char_conversions[n].name;
+	char_conversions[n].simplify.cc = gfc_convert_char_constant;
+	char_conversions[n].standard = GFC_STD_F2003;
+	char_conversions[n].elemental = 1;
+	char_conversions[n].pure = 1;
+	char_conversions[n].conversion = 0;
+	char_conversions[n].ts = to;
+	char_conversions[n].id = GFC_ISYM_CONVERSION;
+
+	n++;
+      }
+}
+
+
+/* Initialize the table of intrinsics.  */
+void
+gfc_intrinsic_init_1 (void)
+{
+  nargs = nfunc = nsub = nconv = 0;
+
+  /* Create a namespace to hold the resolved intrinsic symbols.  */
+  gfc_intrinsic_namespace = gfc_get_namespace (NULL, 0);
+
+  sizing = SZ_FUNCS;
+  add_functions ();
+  sizing = SZ_SUBS;
+  add_subroutines ();
+  sizing = SZ_CONVS;
+  add_conversions ();
+
+  functions = XCNEWVAR (struct gfc_intrinsic_sym,
+			sizeof (gfc_intrinsic_sym) * (nfunc + nsub)
+			+ sizeof (gfc_intrinsic_arg) * nargs);
+
+  next_sym = functions;
+  subroutines = functions + nfunc;
+
+  conversion = XCNEWVEC (gfc_intrinsic_sym, nconv);
+
+  next_arg = ((gfc_intrinsic_arg *) (subroutines + nsub)) - 1;
+
+  sizing = SZ_NOTHING;
+  nconv = 0;
+
+  add_functions ();
+  add_subroutines ();
+  add_conversions ();
+
+  /* Character conversion intrinsics need to be treated separately.  */
+  add_char_conversions ();
+}
+
+
+void
+gfc_intrinsic_done_1 (void)
+{
+  gfc_free (functions);
+  gfc_free (conversion);
+  gfc_free (char_conversions);
+  gfc_free_namespace (gfc_intrinsic_namespace);
+}
+
+
+/******** Subroutines to check intrinsic interfaces ***********/
+
+/* Given a formal argument list, remove any NULL arguments that may
+   have been left behind by a sort against some formal argument list.  */
+
+static void
+remove_nullargs (gfc_actual_arglist **ap)
+{
+  gfc_actual_arglist *head, *tail, *next;
+
+  tail = NULL;
+
+  for (head = *ap; head; head = next)
+    {
+      next = head->next;
+
+      if (head->expr == NULL && !head->label)
+	{
+	  head->next = NULL;
+	  gfc_free_actual_arglist (head);
+	}
+      else
+	{
+	  if (tail == NULL)
+	    *ap = head;
+	  else
+	    tail->next = head;
+
+	  tail = head;
+	  tail->next = NULL;
+	}
+    }
+
+  if (tail == NULL)
+    *ap = NULL;
+}
+
+
+/* Given an actual arglist and a formal arglist, sort the actual
+   arglist so that its arguments are in a one-to-one correspondence
+   with the format arglist.  Arguments that are not present are given
+   a blank gfc_actual_arglist structure.  If something is obviously
+   wrong (say, a missing required argument) we abort sorting and
+   return FAILURE.  */
+
+static gfc_try
+sort_actual (const char *name, gfc_actual_arglist **ap,
+	     gfc_intrinsic_arg *formal, locus *where)
+{
+  gfc_actual_arglist *actual, *a;
+  gfc_intrinsic_arg *f;
+
+  remove_nullargs (ap);
+  actual = *ap;
+
+  for (f = formal; f; f = f->next)
+    f->actual = NULL;
+
+  f = formal;
+  a = actual;
+
+  if (f == NULL && a == NULL)	/* No arguments */
+    return SUCCESS;
+
+  for (;;)
+    {		/* Put the nonkeyword arguments in a 1:1 correspondence */
+      if (f == NULL)
+	break;
+      if (a == NULL)
+	goto optional;
+
+      if (a->name != NULL)
+	goto keywords;
+
+      f->actual = a;
+
+      f = f->next;
+      a = a->next;
+    }
+
+  if (a == NULL)
+    goto do_sort;
+
+  gfc_error ("Too many arguments in call to '%s' at %L", name, where);
+  return FAILURE;
+
+keywords:
+  /* Associate the remaining actual arguments, all of which have
+     to be keyword arguments.  */
+  for (; a; a = a->next)
+    {
+      for (f = formal; f; f = f->next)
+	if (strcmp (a->name, f->name) == 0)
+	  break;
+
+      if (f == NULL)
+	{
+	  if (a->name[0] == '%')
+	    gfc_error ("The argument list functions %%VAL, %%LOC or %%REF "
+		       "are not allowed in this context at %L", where);
+	  else
+	    gfc_error ("Can't find keyword named '%s' in call to '%s' at %L",
+		       a->name, name, where);
+	  return FAILURE;
+	}
+
+      if (f->actual != NULL)
+	{
+	  gfc_error ("Argument '%s' appears twice in call to '%s' at %L",
+		     f->name, name, where);
+	  return FAILURE;
+	}
+
+      f->actual = a;
+    }
+
+optional:
+  /* At this point, all unmatched formal args must be optional.  */
+  for (f = formal; f; f = f->next)
+    {
+      if (f->actual == NULL && f->optional == 0)
+	{
+	  gfc_error ("Missing actual argument '%s' in call to '%s' at %L",
+		     f->name, name, where);
+	  return FAILURE;
+	}
+    }
+
+do_sort:
+  /* Using the formal argument list, string the actual argument list
+     together in a way that corresponds with the formal list.  */
+  actual = NULL;
+
+  for (f = formal; f; f = f->next)
+    {
+      if (f->actual && f->actual->label != NULL && f->ts.type)
+	{
+	  gfc_error ("ALTERNATE RETURN not permitted at %L", where);
+	  return FAILURE;
+	}
+
+      if (f->actual == NULL)
+	{
+	  a = gfc_get_actual_arglist ();
+	  a->missing_arg_type = f->ts.type;
+	}
+      else
+	a = f->actual;
+
+      if (actual == NULL)
+	*ap = a;
+      else
+	actual->next = a;
+
+      actual = a;
+    }
+  actual->next = NULL;		/* End the sorted argument list.  */
+
+  return SUCCESS;
+}
+
+
+/* Compare an actual argument list with an intrinsic's formal argument
+   list.  The lists are checked for agreement of type.  We don't check
+   for arrayness here.  */
+
+static gfc_try
+check_arglist (gfc_actual_arglist **ap, gfc_intrinsic_sym *sym,
+	       int error_flag)
+{
+  gfc_actual_arglist *actual;
+  gfc_intrinsic_arg *formal;
+  int i;
+
+  formal = sym->formal;
+  actual = *ap;
+
+  i = 0;
+  for (; formal; formal = formal->next, actual = actual->next, i++)
+    {
+      gfc_typespec ts;
+
+      if (actual->expr == NULL)
+	continue;
+
+      ts = formal->ts;
+
+      /* A kind of 0 means we don't check for kind.  */
+      if (ts.kind == 0)
+	ts.kind = actual->expr->ts.kind;
+
+      if (!gfc_compare_types (&ts, &actual->expr->ts))
+	{
+	  if (error_flag)
+	    gfc_error ("Type of argument '%s' in call to '%s' at %L should "
+		       "be %s, not %s", gfc_current_intrinsic_arg[i]->name,
+		       gfc_current_intrinsic, &actual->expr->where,
+		       gfc_typename (&formal->ts),
+		       gfc_typename (&actual->expr->ts));
+	  return FAILURE;
+	}
+
+      /* If the formal argument is INTENT([IN]OUT), check for definability.  */
+      if (formal->intent == INTENT_INOUT || formal->intent == INTENT_OUT)
+	{
+	  const char* context = (error_flag
+				 ? _("actual argument to INTENT = OUT/INOUT")
+				 : NULL);
+
+	  /* No pointer arguments for intrinsics.  */
+	  if (gfc_check_vardef_context (actual->expr, false, context)
+		== FAILURE)
+	    return FAILURE;
+	}
+    }
+
+  return SUCCESS;
+}
+
+
+/* Given a pointer to an intrinsic symbol and an expression node that
+   represent the function call to that subroutine, figure out the type
+   of the result.  This may involve calling a resolution subroutine.  */
+
+static void
+resolve_intrinsic (gfc_intrinsic_sym *specific, gfc_expr *e)
+{
+  gfc_expr *a1, *a2, *a3, *a4, *a5;
+  gfc_actual_arglist *arg;
+
+  if (specific->resolve.f1 == NULL)
+    {
+      if (e->value.function.name == NULL)
+	e->value.function.name = specific->lib_name;
+
+      if (e->ts.type == BT_UNKNOWN)
+	e->ts = specific->ts;
+      return;
+    }
+
+  arg = e->value.function.actual;
+
+  /* Special case hacks for MIN and MAX.  */
+  if (specific->resolve.f1m == gfc_resolve_max
+      || specific->resolve.f1m == gfc_resolve_min)
+    {
+      (*specific->resolve.f1m) (e, arg);
+      return;
+    }
+
+  if (arg == NULL)
+    {
+      (*specific->resolve.f0) (e);
+      return;
+    }
+
+  a1 = arg->expr;
+  arg = arg->next;
+
+  if (arg == NULL)
+    {
+      (*specific->resolve.f1) (e, a1);
+      return;
+    }
+
+  a2 = arg->expr;
+  arg = arg->next;
+
+  if (arg == NULL)
+    {
+      (*specific->resolve.f2) (e, a1, a2);
+      return;
+    }
+
+  a3 = arg->expr;
+  arg = arg->next;
+
+  if (arg == NULL)
+    {
+      (*specific->resolve.f3) (e, a1, a2, a3);
+      return;
+    }
+
+  a4 = arg->expr;
+  arg = arg->next;
+
+  if (arg == NULL)
+    {
+      (*specific->resolve.f4) (e, a1, a2, a3, a4);
+      return;
+    }
+
+  a5 = arg->expr;
+  arg = arg->next;
+
+  if (arg == NULL)
+    {
+      (*specific->resolve.f5) (e, a1, a2, a3, a4, a5);
+      return;
+    }
+
+  gfc_internal_error ("resolve_intrinsic(): Too many args for intrinsic");
+}
+
+
+/* Given an intrinsic symbol node and an expression node, call the
+   simplification function (if there is one), perhaps replacing the
+   expression with something simpler.  We return FAILURE on an error
+   of the simplification, SUCCESS if the simplification worked, even
+   if nothing has changed in the expression itself.  */
+
+static gfc_try
+do_simplify (gfc_intrinsic_sym *specific, gfc_expr *e)
+{
+  gfc_expr *result, *a1, *a2, *a3, *a4, *a5;
+  gfc_actual_arglist *arg;
+
+  /* Max and min require special handling due to the variable number
+     of args.  */
+  if (specific->simplify.f1 == gfc_simplify_min)
+    {
+      result = gfc_simplify_min (e);
+      goto finish;
+    }
+
+  if (specific->simplify.f1 == gfc_simplify_max)
+    {
+      result = gfc_simplify_max (e);
+      goto finish;
+    }
+
+  if (specific->simplify.f1 == NULL)
+    {
+      result = NULL;
+      goto finish;
+    }
+
+  arg = e->value.function.actual;
+
+  if (arg == NULL)
+    {
+      result = (*specific->simplify.f0) ();
+      goto finish;
+    }
+
+  a1 = arg->expr;
+  arg = arg->next;
+
+  if (specific->simplify.cc == gfc_convert_constant
+      || specific->simplify.cc == gfc_convert_char_constant)
+    {
+      result = specific->simplify.cc (a1, specific->ts.type, specific->ts.kind);
+      goto finish;
+    }
+
+  if (arg == NULL)
+    result = (*specific->simplify.f1) (a1);
+  else
+    {
+      a2 = arg->expr;
+      arg = arg->next;
+
+      if (arg == NULL)
+	result = (*specific->simplify.f2) (a1, a2);
+      else
+	{
+	  a3 = arg->expr;
+	  arg = arg->next;
+
+	  if (arg == NULL)
+	    result = (*specific->simplify.f3) (a1, a2, a3);
+	  else
+	    {
+	      a4 = arg->expr;
+	      arg = arg->next;
+
+	      if (arg == NULL)
+		result = (*specific->simplify.f4) (a1, a2, a3, a4);
+	      else
+		{
+		  a5 = arg->expr;
+		  arg = arg->next;
+
+		  if (arg == NULL)
+		    result = (*specific->simplify.f5) (a1, a2, a3, a4, a5);
+		  else
+		    gfc_internal_error
+		      ("do_simplify(): Too many args for intrinsic");
+		}
+	    }
+	}
+    }
+
+finish:
+  if (result == &gfc_bad_expr)
+    return FAILURE;
+
+  if (result == NULL)
+    resolve_intrinsic (specific, e);	/* Must call at run-time */
+  else
+    {
+      result->where = e->where;
+      gfc_replace_expr (e, result);
+    }
+
+  return SUCCESS;
+}
+
+
+/* Initialize the gfc_current_intrinsic_arg[] array for the benefit of
+   error messages.  This subroutine returns FAILURE if a subroutine
+   has more than MAX_INTRINSIC_ARGS, in which case the actual argument
+   list cannot match any intrinsic.  */
+
+static void
+init_arglist (gfc_intrinsic_sym *isym)
+{
+  gfc_intrinsic_arg *formal;
+  int i;
+
+  gfc_current_intrinsic = isym->name;
+
+  i = 0;
+  for (formal = isym->formal; formal; formal = formal->next)
+    {
+      if (i >= MAX_INTRINSIC_ARGS)
+	gfc_internal_error ("init_arglist(): too many arguments");
+      gfc_current_intrinsic_arg[i++] = formal;
+    }
+}
+
+
+/* Given a pointer to an intrinsic symbol and an expression consisting
+   of a function call, see if the function call is consistent with the
+   intrinsic's formal argument list.  Return SUCCESS if the expression
+   and intrinsic match, FAILURE otherwise.  */
+
+static gfc_try
+check_specific (gfc_intrinsic_sym *specific, gfc_expr *expr, int error_flag)
+{
+  gfc_actual_arglist *arg, **ap;
+  gfc_try t;
+
+  ap = &expr->value.function.actual;
+
+  init_arglist (specific);
+
+  /* Don't attempt to sort the argument list for min or max.  */
+  if (specific->check.f1m == gfc_check_min_max
+      || specific->check.f1m == gfc_check_min_max_integer
+      || specific->check.f1m == gfc_check_min_max_real
+      || specific->check.f1m == gfc_check_min_max_double)
+    return (*specific->check.f1m) (*ap);
+
+  if (sort_actual (specific->name, ap, specific->formal,
+		   &expr->where) == FAILURE)
+    return FAILURE;
+
+  if (specific->check.f3ml == gfc_check_minloc_maxloc)
+    /* This is special because we might have to reorder the argument list.  */
+    t = gfc_check_minloc_maxloc (*ap);
+  else if (specific->check.f3red == gfc_check_minval_maxval)
+    /* This is also special because we also might have to reorder the
+       argument list.  */
+    t = gfc_check_minval_maxval (*ap);
+  else if (specific->check.f3red == gfc_check_product_sum)
+    /* Same here. The difference to the previous case is that we allow a
+       general numeric type.  */
+    t = gfc_check_product_sum (*ap);
+  else if (specific->check.f3red == gfc_check_transf_bit_intrins)
+    /* Same as for PRODUCT and SUM, but different checks.  */
+    t = gfc_check_transf_bit_intrins (*ap);
+  else
+     {
+       if (specific->check.f1 == NULL)
+	 {
+	   t = check_arglist (ap, specific, error_flag);
+	   if (t == SUCCESS)
+	     expr->ts = specific->ts;
+	 }
+       else
+	 t = do_check (specific, *ap);
+     }
+
+  /* Check conformance of elemental intrinsics.  */
+  if (t == SUCCESS && specific->elemental)
+    {
+      int n = 0;
+      gfc_expr *first_expr;
+      arg = expr->value.function.actual;
+
+      /* There is no elemental intrinsic without arguments.  */
+      gcc_assert(arg != NULL);
+      first_expr = arg->expr;
+
+      for ( ; arg && arg->expr; arg = arg->next, n++)
+	if (gfc_check_conformance (first_expr, arg->expr,
+				   "arguments '%s' and '%s' for "
+				   "intrinsic '%s'",
+				   gfc_current_intrinsic_arg[0]->name,
+				   gfc_current_intrinsic_arg[n]->name,
+				   gfc_current_intrinsic) == FAILURE)
+	  return FAILURE;
+    }
+
+  if (t == FAILURE)
+    remove_nullargs (ap);
+
+  return t;
+}
+
+
+/* Check whether an intrinsic belongs to whatever standard the user
+   has chosen, taking also into account -fall-intrinsics.  Here, no
+   warning/error is emitted; but if symstd is not NULL, it is pointed to a
+   textual representation of the symbols standard status (like
+   "new in Fortran 2008", "a GNU extension" or "obsolescent in Fortran 95") that
+   can be used to construct a detailed warning/error message in case of
+   a FAILURE.  */
+
+gfc_try
+gfc_check_intrinsic_standard (const gfc_intrinsic_sym* isym,
+			      const char** symstd, bool silent, locus where)
+{
+  const char* symstd_msg;
+
+  /* For -fall-intrinsics, just succeed.  */
+  if (gfc_option.flag_all_intrinsics)
+    return SUCCESS;
+
+  /* Find the symbol's standard message for later usage.  */
+  switch (isym->standard)
+    {
+    case GFC_STD_F77:
+      symstd_msg = "available since Fortran 77";
+      break;
+
+    case GFC_STD_F95_OBS:
+      symstd_msg = "obsolescent in Fortran 95";
+      break;
+
+    case GFC_STD_F95_DEL:
+      symstd_msg = "deleted in Fortran 95";
+      break;
+
+    case GFC_STD_F95:
+      symstd_msg = "new in Fortran 95";
+      break;
+
+    case GFC_STD_F2003:
+      symstd_msg = "new in Fortran 2003";
+      break;
+
+    case GFC_STD_F2008:
+      symstd_msg = "new in Fortran 2008";
+      break;
+
+    case GFC_STD_GNU:
+      symstd_msg = "a GNU Fortran extension";
+      break;
+
+    case GFC_STD_LEGACY:
+      symstd_msg = "for backward compatibility";
+      break;
+
+    default:
+      gfc_internal_error ("Invalid standard code on intrinsic '%s' (%d)",
+			  isym->name, isym->standard);
+    }
+
+  /* If warning about the standard, warn and succeed.  */
+  if (gfc_option.warn_std & isym->standard)
+    {
+      /* Do only print a warning if not a GNU extension.  */
+      if (!silent && isym->standard != GFC_STD_GNU)
+	gfc_warning ("Intrinsic '%s' (is %s) is used at %L",
+		     isym->name, _(symstd_msg), &where);
+
+      return SUCCESS;
+    }
+
+  /* If allowing the symbol's standard, succeed, too.  */
+  if (gfc_option.allow_std & isym->standard)
+    return SUCCESS;
+
+  /* Otherwise, fail.  */
+  if (symstd)
+    *symstd = _(symstd_msg);
+  return FAILURE;
+}
+
+
+/* See if a function call corresponds to an intrinsic function call.
+   We return:
+
+    MATCH_YES    if the call corresponds to an intrinsic, simplification
+		 is done if possible.
+
+    MATCH_NO     if the call does not correspond to an intrinsic
+
+    MATCH_ERROR  if the call corresponds to an intrinsic but there was an
+		 error during the simplification process.
+
+   The error_flag parameter enables an error reporting.  */
+
+match
+gfc_intrinsic_func_interface (gfc_expr *expr, int error_flag)
+{
+  gfc_intrinsic_sym *isym, *specific;
+  gfc_actual_arglist *actual;
+  const char *name;
+  int flag;
+
+  if (expr->value.function.isym != NULL)
+    return (do_simplify (expr->value.function.isym, expr) == FAILURE)
+	   ? MATCH_ERROR : MATCH_YES;
+
+  if (!error_flag)
+    gfc_push_suppress_errors ();
+  flag = 0;
+
+  for (actual = expr->value.function.actual; actual; actual = actual->next)
+    if (actual->expr != NULL)
+      flag |= (actual->expr->ts.type != BT_INTEGER
+	       && actual->expr->ts.type != BT_CHARACTER);
+
+  name = expr->symtree->n.sym->name;
+
+  if (expr->symtree->n.sym->intmod_sym_id)
+    {
+      int id = expr->symtree->n.sym->intmod_sym_id;
+      isym = specific = gfc_intrinsic_function_by_id ((gfc_isym_id) id);
+    }
+  else
+    isym = specific = gfc_find_function (name);
+
+  if (isym == NULL)
+    {
+      if (!error_flag)
+	gfc_pop_suppress_errors ();
+      return MATCH_NO;
+    }
+
+  if ((isym->id == GFC_ISYM_REAL || isym->id == GFC_ISYM_DBLE
+       || isym->id == GFC_ISYM_CMPLX)
+      && gfc_init_expr_flag
+      && gfc_notify_std (GFC_STD_F2003, "Fortran 2003: Function '%s' "
+			 "as initialization expression at %L", name,
+			 &expr->where) == FAILURE)
+    {
+      if (!error_flag)
+	gfc_pop_suppress_errors ();
+      return MATCH_ERROR;
+    }
+
+  gfc_current_intrinsic_where = &expr->where;
+
+  /* Bypass the generic list for min and max.  */
+  if (isym->check.f1m == gfc_check_min_max)
+    {
+      init_arglist (isym);
+
+      if (gfc_check_min_max (expr->value.function.actual) == SUCCESS)
+	goto got_specific;
+
+      if (!error_flag)
+	gfc_pop_suppress_errors ();
+      return MATCH_NO;
+    }
+
+  /* If the function is generic, check all of its specific
+     incarnations.  If the generic name is also a specific, we check
+     that name last, so that any error message will correspond to the
+     specific.  */
+  gfc_push_suppress_errors ();
+
+  if (isym->generic)
+    {
+      for (specific = isym->specific_head; specific;
+	   specific = specific->next)
+	{
+	  if (specific == isym)
+	    continue;
+	  if (check_specific (specific, expr, 0) == SUCCESS)
+	    {
+	      gfc_pop_suppress_errors ();
+	      goto got_specific;
+	    }
+	}
+    }
+
+  gfc_pop_suppress_errors ();
+
+  if (check_specific (isym, expr, error_flag) == FAILURE)
+    {
+      if (!error_flag)
+	gfc_pop_suppress_errors ();
+      return MATCH_NO;
+    }
+
+  specific = isym;
+
+got_specific:
+  expr->value.function.isym = specific;
+  gfc_intrinsic_symbol (expr->symtree->n.sym);
+
+  if (!error_flag)
+    gfc_pop_suppress_errors ();
+
+  if (do_simplify (specific, expr) == FAILURE)
+    return MATCH_ERROR;
+
+  /* F95, 7.1.6.1, Initialization expressions
+     (4) An elemental intrinsic function reference of type integer or
+         character where each argument is an initialization expression
+         of type integer or character
+
+     F2003, 7.1.7 Initialization expression
+     (4)   A reference to an elemental standard intrinsic function,
+           where each argument is an initialization expression  */
+
+  if (gfc_init_expr_flag && isym->elemental && flag
+      && gfc_notify_std (GFC_STD_F2003, "Fortran 2003: Elemental function "
+			"as initialization expression with non-integer/non-"
+		        "character arguments at %L", &expr->where) == FAILURE)
+    return MATCH_ERROR;
+
+  return MATCH_YES;
+}
+
+
+/* See if a CALL statement corresponds to an intrinsic subroutine.
+   Returns MATCH_YES if the subroutine corresponds to an intrinsic,
+   MATCH_NO if not, and MATCH_ERROR if there was an error (but did
+   correspond).  */
+
+match
+gfc_intrinsic_sub_interface (gfc_code *c, int error_flag)
+{
+  gfc_intrinsic_sym *isym;
+  const char *name;
+
+  name = c->symtree->n.sym->name;
+
+  isym = gfc_find_subroutine (name);
+  if (isym == NULL)
+    return MATCH_NO;
+
+  if (!error_flag)
+    gfc_push_suppress_errors ();
+
+  init_arglist (isym);
+
+  if (sort_actual (name, &c->ext.actual, isym->formal, &c->loc) == FAILURE)
+    goto fail;
+
+  if (isym->check.f1 != NULL)
+    {
+      if (do_check (isym, c->ext.actual) == FAILURE)
+	goto fail;
+    }
+  else
+    {
+      if (check_arglist (&c->ext.actual, isym, 1) == FAILURE)
+	goto fail;
+    }
+
+  /* The subroutine corresponds to an intrinsic.  Allow errors to be
+     seen at this point.  */
+  if (!error_flag)
+    gfc_pop_suppress_errors ();
+
+  c->resolved_isym = isym;
+  if (isym->resolve.s1 != NULL)
+    isym->resolve.s1 (c);
+  else
+    {
+      c->resolved_sym = gfc_get_intrinsic_sub_symbol (isym->lib_name);
+      c->resolved_sym->attr.elemental = isym->elemental;
+    }
+
+  if (gfc_pure (NULL) && !isym->pure)
+    {
+      gfc_error ("Subroutine call to intrinsic '%s' at %L is not PURE", name,
+		 &c->loc);
+      return MATCH_ERROR;
+    }
+
+  c->resolved_sym->attr.noreturn = isym->noreturn;
+
+  return MATCH_YES;
+
+fail:
+  if (!error_flag)
+    gfc_pop_suppress_errors ();
+  return MATCH_NO;
+}
+
+
+/* Call gfc_convert_type() with warning enabled.  */
+
+gfc_try
+gfc_convert_type (gfc_expr *expr, gfc_typespec *ts, int eflag)
+{
+  return gfc_convert_type_warn (expr, ts, eflag, 1);
+}
+
+
+/* Try to convert an expression (in place) from one type to another.
+   'eflag' controls the behavior on error.
+
+   The possible values are:
+
+     1 Generate a gfc_error()
+     2 Generate a gfc_internal_error().
+
+   'wflag' controls the warning related to conversion.  */
+
+gfc_try
+gfc_convert_type_warn (gfc_expr *expr, gfc_typespec *ts, int eflag, int wflag)
+{
+  gfc_intrinsic_sym *sym;
+  gfc_typespec from_ts;
+  locus old_where;
+  gfc_expr *new_expr;
+  int rank;
+  mpz_t *shape;
+
+  from_ts = expr->ts;		/* expr->ts gets clobbered */
+
+  if (ts->type == BT_UNKNOWN)
+    goto bad;
+
+  /* NULL and zero size arrays get their type here.  */
+  if (expr->expr_type == EXPR_NULL
+      || (expr->expr_type == EXPR_ARRAY && expr->value.constructor == NULL))
+    {
+      /* Sometimes the RHS acquire the type.  */
+      expr->ts = *ts;
+      return SUCCESS;
+    }
+
+  if (expr->ts.type == BT_UNKNOWN)
+    goto bad;
+
+  if (expr->ts.type == BT_DERIVED && ts->type == BT_DERIVED
+      && gfc_compare_types (&expr->ts, ts))
+    return SUCCESS;
+
+  sym = find_conv (&expr->ts, ts);
+  if (sym == NULL)
+    goto bad;
+
+  /* At this point, a conversion is necessary. A warning may be needed.  */
+  if ((gfc_option.warn_std & sym->standard) != 0)
+    {
+      gfc_warning_now ("Extension: Conversion from %s to %s at %L",
+		       gfc_typename (&from_ts), gfc_typename (ts),
+		       &expr->where);
+    }
+  else if (wflag)
+    {
+      if (gfc_option.flag_range_check
+	  && expr->expr_type == EXPR_CONSTANT
+	  && from_ts.type == ts->type)
+	{
+	  /* Do nothing. Constants of the same type are range-checked
+	     elsewhere. If a value too large for the target type is
+	     assigned, an error is generated. Not checking here avoids
+	     duplications of warnings/errors.
+	     If range checking was disabled, but -Wconversion enabled,
+	     a non range checked warning is generated below.  */
+	}
+      else if (from_ts.type == BT_LOGICAL || ts->type == BT_LOGICAL)
+	{
+	  /* Do nothing. This block exists only to simplify the other
+	     else-if expressions.
+	       LOGICAL <> LOGICAL    no warning, independent of kind values
+	       LOGICAL <> INTEGER    extension, warned elsewhere
+	       LOGICAL <> REAL       invalid, error generated elsewhere
+	       LOGICAL <> COMPLEX    invalid, error generated elsewhere  */
+	}
+      else if (from_ts.type == ts->type
+	       || (from_ts.type == BT_INTEGER && ts->type == BT_REAL)
+	       || (from_ts.type == BT_INTEGER && ts->type == BT_COMPLEX)
+	       || (from_ts.type == BT_REAL && ts->type == BT_COMPLEX))
+	{
+	  /* Larger kinds can hold values of smaller kinds without problems.
+	     Hence, only warn if target kind is smaller than the source
+	     kind - or if -Wconversion-extra is specified.  */
+	  if (gfc_option.warn_conversion_extra)
+	    gfc_warning_now ("Conversion from %s to %s at %L",
+			     gfc_typename (&from_ts), gfc_typename (ts),
+			     &expr->where);
+	  else if (gfc_option.gfc_warn_conversion
+		   && from_ts.kind > ts->kind)
+	    gfc_warning_now ("Possible change of value in conversion "
+			     "from %s to %s at %L", gfc_typename (&from_ts),
+			     gfc_typename (ts), &expr->where);
+	}
+      else if ((from_ts.type == BT_REAL && ts->type == BT_INTEGER)
+	       || (from_ts.type == BT_COMPLEX && ts->type == BT_INTEGER)
+	       || (from_ts.type == BT_COMPLEX && ts->type == BT_REAL))
+	{
+	  /* Conversion from REAL/COMPLEX to INTEGER or COMPLEX to REAL
+	     usually comes with a loss of information, regardless of kinds.  */
+	  if (gfc_option.warn_conversion_extra
+	      || gfc_option.gfc_warn_conversion)
+	    gfc_warning_now ("Possible change of value in conversion "
+			     "from %s to %s at %L", gfc_typename (&from_ts),
+			     gfc_typename (ts), &expr->where);
+	}
+      else if (from_ts.type == BT_HOLLERITH || ts->type == BT_HOLLERITH)
+	{
+	  /* If HOLLERITH is involved, all bets are off.  */
+	  if (gfc_option.warn_conversion_extra
+	      || gfc_option.gfc_warn_conversion)
+	    gfc_warning_now ("Conversion from %s to %s at %L",
+			     gfc_typename (&from_ts), gfc_typename (ts),
+			     &expr->where);
+	}
+      else
+        gcc_unreachable ();
+    }
+
+  /* Insert a pre-resolved function call to the right function.  */
+  old_where = expr->where;
+  rank = expr->rank;
+  shape = expr->shape;
+
+  new_expr = gfc_get_expr ();
+  *new_expr = *expr;
+
+  new_expr = gfc_build_conversion (new_expr);
+  new_expr->value.function.name = sym->lib_name;
+  new_expr->value.function.isym = sym;
+  new_expr->where = old_where;
+  new_expr->rank = rank;
+  new_expr->shape = gfc_copy_shape (shape, rank);
+
+  gfc_get_ha_sym_tree (sym->name, &new_expr->symtree);
+  new_expr->symtree->n.sym->result = new_expr->symtree->n.sym;
+  new_expr->symtree->n.sym->ts = *ts;
+  new_expr->symtree->n.sym->attr.flavor = FL_PROCEDURE;
+  new_expr->symtree->n.sym->attr.function = 1;
+  new_expr->symtree->n.sym->attr.elemental = 1;
+  new_expr->symtree->n.sym->attr.pure = 1;
+  new_expr->symtree->n.sym->attr.referenced = 1;
+  gfc_intrinsic_symbol(new_expr->symtree->n.sym);
+  gfc_commit_symbol (new_expr->symtree->n.sym);
+
+  *expr = *new_expr;
+
+  gfc_free (new_expr);
+  expr->ts = *ts;
+
+  if (gfc_is_constant_expr (expr->value.function.actual->expr)
+      && do_simplify (sym, expr) == FAILURE)
+    {
+
+      if (eflag == 2)
+	goto bad;
+      return FAILURE;		/* Error already generated in do_simplify() */
+    }
+
+  return SUCCESS;
+
+bad:
+  if (eflag == 1)
+    {
+      gfc_error ("Can't convert %s to %s at %L",
+		 gfc_typename (&from_ts), gfc_typename (ts), &expr->where);
+      return FAILURE;
+    }
+
+  gfc_internal_error ("Can't convert %s to %s at %L",
+		      gfc_typename (&from_ts), gfc_typename (ts),
+		      &expr->where);
+  /* Not reached */
+}
+
+
+gfc_try
+gfc_convert_chartype (gfc_expr *expr, gfc_typespec *ts)
+{
+  gfc_intrinsic_sym *sym;
+  locus old_where;
+  gfc_expr *new_expr;
+  int rank;
+  mpz_t *shape;
+
+  gcc_assert (expr->ts.type == BT_CHARACTER && ts->type == BT_CHARACTER);
+
+  sym = find_char_conv (&expr->ts, ts);
+  gcc_assert (sym);
+
+  /* Insert a pre-resolved function call to the right function.  */
+  old_where = expr->where;
+  rank = expr->rank;
+  shape = expr->shape;
+
+  new_expr = gfc_get_expr ();
+  *new_expr = *expr;
+
+  new_expr = gfc_build_conversion (new_expr);
+  new_expr->value.function.name = sym->lib_name;
+  new_expr->value.function.isym = sym;
+  new_expr->where = old_where;
+  new_expr->rank = rank;
+  new_expr->shape = gfc_copy_shape (shape, rank);
+
+  gfc_get_ha_sym_tree (sym->name, &new_expr->symtree);
+  new_expr->symtree->n.sym->ts = *ts;
+  new_expr->symtree->n.sym->attr.flavor = FL_PROCEDURE;
+  new_expr->symtree->n.sym->attr.function = 1;
+  new_expr->symtree->n.sym->attr.elemental = 1;
+  new_expr->symtree->n.sym->attr.referenced = 1;
+  gfc_intrinsic_symbol(new_expr->symtree->n.sym);
+  gfc_commit_symbol (new_expr->symtree->n.sym);
+
+  *expr = *new_expr;
+
+  gfc_free (new_expr);
+  expr->ts = *ts;
+
+  if (gfc_is_constant_expr (expr->value.function.actual->expr)
+      && do_simplify (sym, expr) == FAILURE)
+    {
+      /* Error already generated in do_simplify() */
+      return FAILURE;
+    }
+
+  return SUCCESS;
+}
+
+
+/* Check if the passed name is name of an intrinsic (taking into account the
+   current -std=* and -fall-intrinsic settings).  If it is, see if we should
+   warn about this as a user-procedure having the same name as an intrinsic
+   (-Wintrinsic-shadow enabled) and do so if we should.  */
+
+void
+gfc_warn_intrinsic_shadow (const gfc_symbol* sym, bool in_module, bool func)
+{
+  gfc_intrinsic_sym* isym;
+
+  /* If the warning is disabled, do nothing at all.  */
+  if (!gfc_option.warn_intrinsic_shadow)
+    return;
+
+  /* Try to find an intrinsic of the same name.  */
+  if (func)
+    isym = gfc_find_function (sym->name);
+  else  
+    isym = gfc_find_subroutine (sym->name);
+
+  /* If no intrinsic was found with this name or it's not included in the
+     selected standard, everything's fine.  */
+  if (!isym || gfc_check_intrinsic_standard (isym, NULL, true,
+					     sym->declared_at) == FAILURE)
+    return;
+
+  /* Emit the warning.  */
+  if (in_module)
+    gfc_warning ("'%s' declared at %L may shadow the intrinsic of the same"
+		 " name.  In order to call the intrinsic, explicit INTRINSIC"
+		 " declarations may be required.",
+		 sym->name, &sym->declared_at);
+  else
+    gfc_warning ("'%s' declared at %L is also the name of an intrinsic.  It can"
+		 " only be called via an explicit interface or if declared"
+		 " EXTERNAL.", sym->name, &sym->declared_at);
+}