gcc/cobol/convert.cc

/*
 * Copyright (c) 2021-2025 Symas Corporation
 *
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 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above
 *   copyright notice, this list of conditions and the following disclaimer
 *   in the documentation and/or other materials provided with the
 *   distribution.
 * * Neither the name of the Symas Corporation nor the names of its
 *   contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 */

#include "cobol-system.h"

#include "coretypes.h"
#include "tree.h"
#include "fold-const.h"
#include "convert.h"

// This is required by some generic routines

tree
convert (tree /*type*/, tree /*expr*/)
{
// The routine is necessary, but in our testing of the GCOBOL compiler, it never
// is called.  I am commenting this cloned code out.  I am keeping it so I have
// something to refer to if and when the necessity to reconstitute it arises.
//  RJ Dubner, 2025-02-17
#if 0
  if (type == error_mark_node
      || expr == error_mark_node
      || TREE_TYPE (expr) == error_mark_node)
    return error_mark_node;

  if (type == TREE_TYPE (expr))
    return expr;

  if (TYPE_MAIN_VARIANT (type) == TYPE_MAIN_VARIANT (TREE_TYPE (expr)))
    return fold_convert (type, expr);

  switch (TREE_CODE (type))
    {
    case VOID_TYPE:
    case BOOLEAN_TYPE:
      return fold_convert (type, expr);
    case INTEGER_TYPE:
      return fold (convert_to_integer (type, expr));
    case POINTER_TYPE:
      return fold (convert_to_pointer (type, expr));
    case REAL_TYPE:
      return fold (convert_to_real (type, expr));
    case COMPLEX_TYPE:
      return fold (convert_to_complex (type, expr));
    default:
      break;
    }
#endif

  gcc_unreachable ();
}