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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [tree-pretty-print.c] - Blame information for rev 856

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/* Pretty formatting of GENERIC trees in C syntax.
   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
   Free Software Foundation, Inc.
   Adapted from c-pretty-print.c by Diego Novillo <dnovillo@redhat.com>
 
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 "coretypes.h"
#include "tm.h"
#include "tree.h"
#include "diagnostic.h"
#include "real.h"
#include "hashtab.h"
#include "tree-flow.h"
#include "langhooks.h"
#include "tree-iterator.h"
#include "tree-chrec.h"
#include "tree-pass.h"
 
/* Local functions, macros and variables.  */
static int op_prio (tree);
static const char *op_symbol_1 (enum tree_code);
static const char *op_symbol (tree);
static void pretty_print_string (pretty_printer *, const char*);
static void print_call_name (pretty_printer *, tree);
static void newline_and_indent (pretty_printer *, int);
static void maybe_init_pretty_print (FILE *);
static void print_declaration (pretty_printer *, tree, int, int);
static void print_struct_decl (pretty_printer *, tree, int, int);
static void do_niy (pretty_printer *, tree);
static void dump_vops (pretty_printer *, tree, int, int);
static void dump_generic_bb_buff (pretty_printer *, basic_block, int, int);
 
#define INDENT(SPACE) do { \
  int i; for (i = 0; i<SPACE; i++) pp_space (buffer); } while (0)
 
#define NIY do_niy(buffer,node)
 
#define PRINT_FUNCTION_NAME(NODE)  pp_printf             \
  (buffer, "%s", TREE_CODE (NODE) == NOP_EXPR ?              \
   lang_hooks.decl_printable_name (TREE_OPERAND (NODE, 0), 1) : \
   lang_hooks.decl_printable_name (NODE, 1))
 
static pretty_printer buffer;
static int initialized = 0;
 
/* Try to print something for an unknown tree code.  */
 
static void
do_niy (pretty_printer *buffer, tree node)
{
  int i, len;
 
  pp_string (buffer, "<<< Unknown tree: ");
  pp_string (buffer, tree_code_name[(int) TREE_CODE (node)]);
 
  if (EXPR_P (node))
    {
      len = TREE_CODE_LENGTH (TREE_CODE (node));
      for (i = 0; i < len; ++i)
        {
          newline_and_indent (buffer, 2);
          dump_generic_node (buffer, TREE_OPERAND (node, i), 2, 0, false);
        }
    }
 
  pp_string (buffer, " >>>\n");
}
 
void
debug_generic_expr (tree t)
{
  print_generic_expr (stderr, t, TDF_VOPS|TDF_UID);
  fprintf (stderr, "\n");
}
 
void
debug_generic_stmt (tree t)
{
  print_generic_stmt (stderr, t, TDF_VOPS|TDF_UID);
  fprintf (stderr, "\n");
}
 
void
debug_tree_chain (tree t)
{
  while (t)
  {
    print_generic_expr (stderr, t, TDF_VOPS|TDF_UID);
    fprintf(stderr, " ");
    t = TREE_CHAIN (t);
  }
  fprintf (stderr, "\n");
}
 
/* Prints declaration DECL to the FILE with details specified by FLAGS.  */
void
print_generic_decl (FILE *file, tree decl, int flags)
{
  maybe_init_pretty_print (file);
  print_declaration (&buffer, decl, 2, flags);
  pp_write_text_to_stream (&buffer);
}
 
/* Print tree T, and its successors, on file FILE.  FLAGS specifies details
   to show in the dump.  See TDF_* in tree.h.  */
 
void
print_generic_stmt (FILE *file, tree t, int flags)
{
  maybe_init_pretty_print (file);
  dump_generic_node (&buffer, t, 0, flags, true);
  pp_flush (&buffer);
}
 
/* Print tree T, and its successors, on file FILE.  FLAGS specifies details
   to show in the dump.  See TDF_* in tree.h.  The output is indented by
   INDENT spaces.  */
 
void
print_generic_stmt_indented (FILE *file, tree t, int flags, int indent)
{
  int i;
 
  maybe_init_pretty_print (file);
 
  for (i = 0; i < indent; i++)
    pp_space (&buffer);
  dump_generic_node (&buffer, t, indent, flags, true);
  pp_flush (&buffer);
}
 
/* Print a single expression T on file FILE.  FLAGS specifies details to show
   in the dump.  See TDF_* in tree.h.  */
 
void
print_generic_expr (FILE *file, tree t, int flags)
{
  maybe_init_pretty_print (file);
  dump_generic_node (&buffer, t, 0, flags, false);
}
 
/* Dump the name of a _DECL node and its DECL_UID if TDF_UID is set
   in FLAGS.  */
 
static void
dump_decl_name (pretty_printer *buffer, tree node, int flags)
{
  tree t = node;
 
  if (DECL_NAME (t))
    pp_tree_identifier (buffer, DECL_NAME (t));
  if ((flags & TDF_UID)
      || DECL_NAME (t) == NULL_TREE)
    {
      if (TREE_CODE (t) == LABEL_DECL
          && LABEL_DECL_UID (t) != -1)
        pp_printf (buffer, "L." HOST_WIDE_INT_PRINT_DEC,
                   LABEL_DECL_UID (t));
      else
        {
          char c = TREE_CODE (t) == CONST_DECL ? 'C' : 'D';
          pp_printf (buffer, "%c.%u", c, DECL_UID (t));
        }
    }
}
 
/* Like the above, but used for pretty printing function calls.  */
 
static void
dump_function_name (pretty_printer *buffer, tree node)
{
  if (DECL_NAME (node))
    PRINT_FUNCTION_NAME (node);
  else
    dump_decl_name (buffer, node, 0);
}
 
/* Dump a function declaration.  NODE is the FUNCTION_TYPE.  BUFFER, SPC and
   FLAGS are as in dump_generic_node.  */
 
static void
dump_function_declaration (pretty_printer *buffer, tree node,
                           int spc, int flags)
{
  bool wrote_arg = false;
  tree arg;
 
  pp_space (buffer);
  pp_character (buffer, '(');
 
  /* Print the argument types.  The last element in the list is a VOID_TYPE.
     The following avoids printing the last element.  */
  arg = TYPE_ARG_TYPES (node);
  while (arg && TREE_CHAIN (arg) && arg != error_mark_node)
    {
      wrote_arg = true;
      dump_generic_node (buffer, TREE_VALUE (arg), spc, flags, false);
      arg = TREE_CHAIN (arg);
      if (TREE_CHAIN (arg) && TREE_CODE (TREE_CHAIN (arg)) == TREE_LIST)
        {
          pp_character (buffer, ',');
          pp_space (buffer);
        }
    }
 
  if (!wrote_arg)
    pp_string (buffer, "void");
 
  pp_character (buffer, ')');
}
 
/* Dump the domain associated with an array.  */
 
static void
dump_array_domain (pretty_printer *buffer, tree domain, int spc, int flags)
{
  pp_character (buffer, '[');
  if (domain)
    {
      tree min = TYPE_MIN_VALUE (domain);
      tree max = TYPE_MAX_VALUE (domain);
 
      if (min && max
          && integer_zerop (min)
          && host_integerp (max, 0))
        pp_wide_integer (buffer, TREE_INT_CST_LOW (max) + 1);
      else
        {
          if (min)
            dump_generic_node (buffer, min, spc, flags, false);
          pp_character (buffer, ':');
          if (max)
            dump_generic_node (buffer, max, spc, flags, false);
        }
    }
  else
    pp_string (buffer, "<unknown>");
  pp_character (buffer, ']');
}
 
 
/* Dump OpenMP clause CLAUSE.  BUFFER, CLAUSE, SPC and FLAGS are as in
   dump_generic_node.  */
 
static void
dump_omp_clause (pretty_printer *buffer, tree clause, int spc, int flags)
{
  const char *name;
 
  switch (OMP_CLAUSE_CODE (clause))
    {
    case OMP_CLAUSE_PRIVATE:
      name = "private";
      goto print_remap;
    case OMP_CLAUSE_SHARED:
      name = "shared";
      goto print_remap;
    case OMP_CLAUSE_FIRSTPRIVATE:
      name = "firstprivate";
      goto print_remap;
    case OMP_CLAUSE_LASTPRIVATE:
      name = "lastprivate";
      goto print_remap;
    case OMP_CLAUSE_COPYIN:
      name = "copyin";
      goto print_remap;
    case OMP_CLAUSE_COPYPRIVATE:
      name = "copyprivate";
      goto print_remap;
  print_remap:
      pp_string (buffer, name);
      pp_character (buffer, '(');
      dump_generic_node (buffer, OMP_CLAUSE_DECL (clause),
          spc, flags, false);
      pp_character (buffer, ')');
      break;
 
    case OMP_CLAUSE_REDUCTION:
      pp_string (buffer, "reduction(");
      pp_string (buffer, op_symbol_1 (OMP_CLAUSE_REDUCTION_CODE (clause)));
      pp_character (buffer, ':');
      dump_generic_node (buffer, OMP_CLAUSE_DECL (clause),
          spc, flags, false);
      pp_character (buffer, ')');
      break;
 
    case OMP_CLAUSE_IF:
      pp_string (buffer, "if(");
      dump_generic_node (buffer, OMP_CLAUSE_IF_EXPR (clause),
          spc, flags, false);
      pp_character (buffer, ')');
      break;
 
    case OMP_CLAUSE_NUM_THREADS:
      pp_string (buffer, "num_threads(");
      dump_generic_node (buffer, OMP_CLAUSE_NUM_THREADS_EXPR (clause),
          spc, flags, false);
      pp_character (buffer, ')');
      break;
 
    case OMP_CLAUSE_NOWAIT:
      pp_string (buffer, "nowait");
      break;
    case OMP_CLAUSE_ORDERED:
      pp_string (buffer, "ordered");
      break;
 
    case OMP_CLAUSE_DEFAULT:
      pp_string (buffer, "default(");
      switch (OMP_CLAUSE_DEFAULT_KIND (clause))
        {
      case OMP_CLAUSE_DEFAULT_UNSPECIFIED:
        break;
      case OMP_CLAUSE_DEFAULT_SHARED:
        pp_string (buffer, "shared");
        break;
      case OMP_CLAUSE_DEFAULT_NONE:
        pp_string (buffer, "none");
        break;
      case OMP_CLAUSE_DEFAULT_PRIVATE:
        pp_string (buffer, "private");
        break;
      default:
        gcc_unreachable ();
        }
      pp_character (buffer, ')');
      break;
 
    case OMP_CLAUSE_SCHEDULE:
      pp_string (buffer, "schedule(");
      switch (OMP_CLAUSE_SCHEDULE_KIND (clause))
        {
      case OMP_CLAUSE_SCHEDULE_STATIC:
        pp_string (buffer, "static");
        break;
      case OMP_CLAUSE_SCHEDULE_DYNAMIC:
        pp_string (buffer, "dynamic");
        break;
      case OMP_CLAUSE_SCHEDULE_GUIDED:
        pp_string (buffer, "guided");
        break;
      case OMP_CLAUSE_SCHEDULE_RUNTIME:
        pp_string (buffer, "runtime");
        break;
      default:
        gcc_unreachable ();
        }
      if (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR (clause))
        {
          pp_character (buffer, ',');
          dump_generic_node (buffer,
              OMP_CLAUSE_SCHEDULE_CHUNK_EXPR (clause),
              spc, flags, false);
        }
      pp_character (buffer, ')');
      break;
 
    default:
      /* Should never happen.  */
      dump_generic_node (buffer, clause, spc, flags, false);
      break;
    }
}
 
 
/* Dump the list of OpenMP clauses.  BUFFER, SPC and FLAGS are as in
   dump_generic_node.  */
 
static void
dump_omp_clauses (pretty_printer *buffer, tree clause, int spc, int flags)
{
  if (clause == NULL)
    return;
 
  pp_space (buffer);
  while (1)
    {
      dump_omp_clause (buffer, clause, spc, flags);
      clause = OMP_CLAUSE_CHAIN (clause);
      if (clause == NULL)
        return;
      pp_space (buffer);
    }
}
 
 
/* Dump the node NODE on the pretty_printer BUFFER, SPC spaces of indent.
   FLAGS specifies details to show in the dump (see TDF_* in tree.h).  If
   IS_STMT is true, the object printed is considered to be a statement
   and it is terminated by ';' if appropriate.  */
 
int
dump_generic_node (pretty_printer *buffer, tree node, int spc, int flags,
                   bool is_stmt)
{
  tree type;
  tree op0, op1;
  const char *str;
  bool is_expr;
 
  if (node == NULL_TREE)
    return spc;
 
  is_expr = EXPR_P (node);
 
  if (TREE_CODE (node) != ERROR_MARK
      && is_gimple_stmt (node)
      && (flags & TDF_VOPS)
      && stmt_ann (node)
      && TREE_CODE (node) != PHI_NODE)
    dump_vops (buffer, node, spc, flags);
 
  if (is_stmt && (flags & TDF_STMTADDR))
    pp_printf (buffer, "<&%p> ", (void *)node);
 
  if ((flags & TDF_LINENO) && EXPR_HAS_LOCATION (node))
    {
      expanded_location xloc = expand_location (EXPR_LOCATION (node));
      pp_character (buffer, '[');
      if (xloc.file)
        {
          pp_string (buffer, xloc.file);
          pp_string (buffer, " : ");
        }
      pp_decimal_int (buffer, xloc.line);
      pp_string (buffer, "] ");
    }
 
  switch (TREE_CODE (node))
    {
    case ERROR_MARK:
      pp_string (buffer, "<<< error >>>");
      break;
 
    case IDENTIFIER_NODE:
      pp_tree_identifier (buffer, node);
      break;
 
    case TREE_LIST:
      while (node && node != error_mark_node)
        {
          if (TREE_PURPOSE (node))
            {
              dump_generic_node (buffer, TREE_PURPOSE (node), spc, flags, false);
              pp_space (buffer);
            }
          dump_generic_node (buffer, TREE_VALUE (node), spc, flags, false);
          node = TREE_CHAIN (node);
          if (node && TREE_CODE (node) == TREE_LIST)
            {
              pp_character (buffer, ',');
              pp_space (buffer);
            }
        }
      break;
 
    case TREE_BINFO:
      dump_generic_node (buffer, BINFO_TYPE (node), spc, flags, false);
 
    case TREE_VEC:
      {
        size_t i;
        if (TREE_VEC_LENGTH (node) > 0)
          {
            size_t len = TREE_VEC_LENGTH (node);
            for (i = 0; i < len - 1; i++)
              {
                dump_generic_node (buffer, TREE_VEC_ELT (node, i), spc, flags,
                                   false);
                pp_character (buffer, ',');
                pp_space (buffer);
              }
            dump_generic_node (buffer, TREE_VEC_ELT (node, len - 1), spc,
                               flags, false);
          }
      }
      break;
 
    case VOID_TYPE:
    case INTEGER_TYPE:
    case REAL_TYPE:
    case COMPLEX_TYPE:
    case VECTOR_TYPE:
    case ENUMERAL_TYPE:
    case BOOLEAN_TYPE:
      {
        unsigned int quals = TYPE_QUALS (node);
        enum tree_code_class class;
 
        if (quals & TYPE_QUAL_CONST)
          pp_string (buffer, "const ");
        else if (quals & TYPE_QUAL_VOLATILE)
          pp_string (buffer, "volatile ");
        else if (quals & TYPE_QUAL_RESTRICT)
          pp_string (buffer, "restrict ");
 
        class = TREE_CODE_CLASS (TREE_CODE (node));
 
        if (class == tcc_declaration)
          {
            if (DECL_NAME (node))
              dump_decl_name (buffer, node, flags);
            else
              pp_string (buffer, "<unnamed type decl>");
          }
        else if (class == tcc_type)
          {
            if (TYPE_NAME (node))
              {
                if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
                  pp_tree_identifier (buffer, TYPE_NAME (node));
                else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
                         && DECL_NAME (TYPE_NAME (node)))
                  dump_decl_name (buffer, TYPE_NAME (node), flags);
                else
                  pp_string (buffer, "<unnamed type>");
              }
            else if (TREE_CODE (node) == VECTOR_TYPE)
              {
                pp_string (buffer, "vector ");
                dump_generic_node (buffer, TREE_TYPE (node),
                                   spc, flags, false);
              }
            else
              pp_string (buffer, "<unnamed type>");
          }
        break;
      }
 
    case POINTER_TYPE:
    case REFERENCE_TYPE:
      str = (TREE_CODE (node) == POINTER_TYPE ? "*" : "&");
 
      if (TREE_CODE (TREE_TYPE (node)) == FUNCTION_TYPE)
        {
          tree fnode = TREE_TYPE (node);
 
          dump_generic_node (buffer, TREE_TYPE (fnode), spc, flags, false);
          pp_space (buffer);
          pp_character (buffer, '(');
          pp_string (buffer, str);
          if (TYPE_NAME (node) && DECL_NAME (TYPE_NAME (node)))
            dump_decl_name (buffer, TYPE_NAME (node), flags);
          else
            pp_printf (buffer, "<T%x>", TYPE_UID (node));
 
          pp_character (buffer, ')');
          dump_function_declaration (buffer, fnode, spc, flags);
        }
      else
        {
          unsigned int quals = TYPE_QUALS (node);
 
          dump_generic_node (buffer, TREE_TYPE (node), spc, flags, false);
          pp_space (buffer);
          pp_string (buffer, str);
 
          if (quals & TYPE_QUAL_CONST)
            pp_string (buffer, " const");
          else if (quals & TYPE_QUAL_VOLATILE)
            pp_string (buffer,  "volatile");
          else if (quals & TYPE_QUAL_RESTRICT)
            pp_string (buffer, " restrict");
 
          if (TYPE_REF_CAN_ALIAS_ALL (node))
            pp_string (buffer, " {ref-all}");
        }
      break;
 
    case OFFSET_TYPE:
      NIY;
      break;
 
    case METHOD_TYPE:
      dump_decl_name (buffer, TYPE_NAME (TYPE_METHOD_BASETYPE (node)), flags);
      pp_string (buffer, "::");
      break;
 
    case TARGET_MEM_REF:
      {
        const char *sep = "";
        tree tmp;
 
        pp_string (buffer, "MEM[");
 
        tmp = TMR_SYMBOL (node);
        if (tmp)
          {
            pp_string (buffer, sep);
            sep = ", ";
            pp_string (buffer, "symbol: ");
            dump_generic_node (buffer, tmp, spc, flags, false);
          }
        tmp = TMR_BASE (node);
        if (tmp)
          {
            pp_string (buffer, sep);
            sep = ", ";
            pp_string (buffer, "base: ");
            dump_generic_node (buffer, tmp, spc, flags, false);
          }
        tmp = TMR_INDEX (node);
        if (tmp)
          {
            pp_string (buffer, sep);
            sep = ", ";
            pp_string (buffer, "index: ");
            dump_generic_node (buffer, tmp, spc, flags, false);
          }
        tmp = TMR_STEP (node);
        if (tmp)
          {
            pp_string (buffer, sep);
            sep = ", ";
            pp_string (buffer, "step: ");
            dump_generic_node (buffer, tmp, spc, flags, false);
          }
        tmp = TMR_OFFSET (node);
        if (tmp)
          {
            pp_string (buffer, sep);
            sep = ", ";
            pp_string (buffer, "offset: ");
            dump_generic_node (buffer, tmp, spc, flags, false);
          }
        pp_string (buffer, "]");
        if (flags & TDF_DETAILS)
          {
            pp_string (buffer, "{");
            dump_generic_node (buffer, TMR_ORIGINAL (node), spc, flags,
                               false);
            pp_string (buffer, "}");
          }
      }
      break;
 
    case ARRAY_TYPE:
      {
        tree tmp;
 
        /* Print the innermost component type.  */
        for (tmp = TREE_TYPE (node); TREE_CODE (tmp) == ARRAY_TYPE;
             tmp = TREE_TYPE (tmp))
          ;
        dump_generic_node (buffer, tmp, spc, flags, false);
 
        /* Print the dimensions.  */
        for (tmp = node; TREE_CODE (tmp) == ARRAY_TYPE; tmp = TREE_TYPE (tmp))
          dump_array_domain (buffer, TYPE_DOMAIN (tmp), spc, flags);
        break;
      }
 
    case RECORD_TYPE:
    case UNION_TYPE:
    case QUAL_UNION_TYPE:
      /* Print the name of the structure.  */
      if (TREE_CODE (node) == RECORD_TYPE)
        pp_string (buffer, "struct ");
      else if (TREE_CODE (node) == UNION_TYPE)
        pp_string (buffer, "union ");
 
      if (TYPE_NAME (node))
        dump_generic_node (buffer, TYPE_NAME (node), spc, flags, false);
      else
        print_struct_decl (buffer, node, spc, flags);
      break;
 
    case LANG_TYPE:
      NIY;
      break;
 
    case INTEGER_CST:
      if (TREE_CODE (TREE_TYPE (node)) == POINTER_TYPE)
        {
          /* In the case of a pointer, one may want to divide by the
             size of the pointed-to type.  Unfortunately, this not
             straightforward.  The C front-end maps expressions
 
             (int *) 5
             int *p; (p + 5)
 
             in such a way that the two INTEGER_CST nodes for "5" have
             different values but identical types.  In the latter
             case, the 5 is multiplied by sizeof (int) in c-common.c
             (pointer_int_sum) to convert it to a byte address, and
             yet the type of the node is left unchanged.  Argh.  What
             is consistent though is that the number value corresponds
             to bytes (UNITS) offset.
 
             NB: Neither of the following divisors can be trivially
             used to recover the original literal:
 
             TREE_INT_CST_LOW (TYPE_SIZE_UNIT (TREE_TYPE (node)))
             TYPE_PRECISION (TREE_TYPE (TREE_TYPE (node)))  */
          pp_wide_integer (buffer, TREE_INT_CST_LOW (node));
          pp_string (buffer, "B"); /* pseudo-unit */
        }
      else if (! host_integerp (node, 0))
        {
          tree val = node;
 
          if (tree_int_cst_sgn (val) < 0)
            {
              pp_character (buffer, '-');
              val = build_int_cst_wide (NULL_TREE,
                                        -TREE_INT_CST_LOW (val),
                                        ~TREE_INT_CST_HIGH (val)
                                        + !TREE_INT_CST_LOW (val));
            }
          /* Would "%x%0*x" or "%x%*0x" get zero-padding on all
             systems?  */
          {
            static char format[10]; /* "%x%09999x\0" */
            if (!format[0])
              sprintf (format, "%%x%%0%dx", HOST_BITS_PER_INT / 4);
            sprintf (pp_buffer (buffer)->digit_buffer, format,
                     TREE_INT_CST_HIGH (val),
                     TREE_INT_CST_LOW (val));
            pp_string (buffer, pp_buffer (buffer)->digit_buffer);
          }
        }
      else
        pp_wide_integer (buffer, TREE_INT_CST_LOW (node));
      break;
 
    case REAL_CST:
      /* Code copied from print_node.  */
      {
        REAL_VALUE_TYPE d;
        if (TREE_OVERFLOW (node))
          pp_string (buffer, " overflow");
 
#if !defined(REAL_IS_NOT_DOUBLE) || defined(REAL_ARITHMETIC)
        d = TREE_REAL_CST (node);
        if (REAL_VALUE_ISINF (d))
          pp_string (buffer, " Inf");
        else if (REAL_VALUE_ISNAN (d))
          pp_string (buffer, " Nan");
        else
          {
            char string[100];
            real_to_decimal (string, &d, sizeof (string), 0, 1);
            pp_string (buffer, string);
          }
#else
        {
          HOST_WIDE_INT i;
          unsigned char *p = (unsigned char *) &TREE_REAL_CST (node);
          pp_string (buffer, "0x");
          for (i = 0; i < sizeof TREE_REAL_CST (node); i++)
            output_formatted_integer (buffer, "%02x", *p++);
        }
#endif
        break;
      }
 
    case COMPLEX_CST:
      pp_string (buffer, "__complex__ (");
      dump_generic_node (buffer, TREE_REALPART (node), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, TREE_IMAGPART (node), spc, flags, false);
      pp_string (buffer, ")");
      break;
 
    case STRING_CST:
      pp_string (buffer, "\"");
      pretty_print_string (buffer, TREE_STRING_POINTER (node));
      pp_string (buffer, "\"");
      break;
 
    case VECTOR_CST:
      {
        tree elt;
        pp_string (buffer, "{ ");
        for (elt = TREE_VECTOR_CST_ELTS (node); elt; elt = TREE_CHAIN (elt))
          {
            dump_generic_node (buffer, TREE_VALUE (elt), spc, flags, false);
            if (TREE_CHAIN (elt))
              pp_string (buffer, ", ");
          }
        pp_string (buffer, " }");
      }
      break;
 
    case FUNCTION_TYPE:
      break;
 
    case FUNCTION_DECL:
    case CONST_DECL:
      dump_decl_name (buffer, node, flags);
      break;
 
    case LABEL_DECL:
      if (DECL_NAME (node))
        dump_decl_name (buffer, node, flags);
      else if (LABEL_DECL_UID (node) != -1)
        pp_printf (buffer, "<L" HOST_WIDE_INT_PRINT_DEC ">",
                   LABEL_DECL_UID (node));
      else
        pp_printf (buffer, "<D%u>", DECL_UID (node));
      break;
 
    case TYPE_DECL:
      if (DECL_IS_BUILTIN (node))
        {
          /* Don't print the declaration of built-in types.  */
          break;
        }
      if (DECL_NAME (node))
        dump_decl_name (buffer, node, flags);
      else
        {
          if ((TREE_CODE (TREE_TYPE (node)) == RECORD_TYPE
               || TREE_CODE (TREE_TYPE (node)) == UNION_TYPE)
              && TYPE_METHODS (TREE_TYPE (node)))
            {
              /* The type is a c++ class: all structures have at least
                 4 methods.  */
              pp_string (buffer, "class ");
              dump_generic_node (buffer, TREE_TYPE (node), spc, flags, false);
            }
          else
            {
              pp_string (buffer,
                         (TREE_CODE (TREE_TYPE (node)) == UNION_TYPE
                          ? "union" : "struct "));
              dump_generic_node (buffer, TREE_TYPE (node), spc, flags, false);
            }
        }
      break;
 
    case SYMBOL_MEMORY_TAG:
    case NAME_MEMORY_TAG:
    case STRUCT_FIELD_TAG:
    case VAR_DECL:
    case PARM_DECL:
    case FIELD_DECL:
    case NAMESPACE_DECL:
      dump_decl_name (buffer, node, flags);
      break;
 
    case RESULT_DECL:
      pp_string (buffer, "<retval>");
      break;
 
    case COMPONENT_REF:
      op0 = TREE_OPERAND (node, 0);
      str = ".";
      if (TREE_CODE (op0) == INDIRECT_REF)
        {
          op0 = TREE_OPERAND (op0, 0);
          str = "->";
        }
      if (op_prio (op0) < op_prio (node))
        pp_character (buffer, '(');
      dump_generic_node (buffer, op0, spc, flags, false);
      if (op_prio (op0) < op_prio (node))
        pp_character (buffer, ')');
      pp_string (buffer, str);
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
 
      if (TREE_CODE (op0) != VALUE_HANDLE)
        {
          op0 = component_ref_field_offset (node);
          if (op0 && TREE_CODE (op0) != INTEGER_CST)
            {
              pp_string (buffer, "{off: ");
              dump_generic_node (buffer, op0, spc, flags, false);
              pp_character (buffer, '}');
            }
        }
      break;
 
    case BIT_FIELD_REF:
      pp_string (buffer, "BIT_FIELD_REF <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, TREE_OPERAND (node, 2), spc, flags, false);
      pp_string (buffer, ">");
      break;
 
    case ARRAY_REF:
    case ARRAY_RANGE_REF:
      op0 = TREE_OPERAND (node, 0);
      if (op_prio (op0) < op_prio (node))
        pp_character (buffer, '(');
      dump_generic_node (buffer, op0, spc, flags, false);
      if (op_prio (op0) < op_prio (node))
        pp_character (buffer, ')');
      pp_character (buffer, '[');
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
      if (TREE_CODE (node) == ARRAY_RANGE_REF)
        pp_string (buffer, " ...");
      pp_character (buffer, ']');
 
      op0 = array_ref_low_bound (node);
      op1 = array_ref_element_size (node);
 
      if (!integer_zerop (op0)
          || (TYPE_SIZE_UNIT (TREE_TYPE (node))
              && !operand_equal_p (op1, TYPE_SIZE_UNIT (TREE_TYPE (node)), 0)))
        {
          pp_string (buffer, "{lb: ");
          dump_generic_node (buffer, op0, spc, flags, false);
          pp_string (buffer, " sz: ");
          dump_generic_node (buffer, op1, spc, flags, false);
          pp_character (buffer, '}');
        }
      break;
 
    case CONSTRUCTOR:
      {
        unsigned HOST_WIDE_INT ix;
        tree field, val;
        bool is_struct_init = FALSE;
        pp_character (buffer, '{');
        if (TREE_CODE (TREE_TYPE (node)) == RECORD_TYPE
            || TREE_CODE (TREE_TYPE (node)) == UNION_TYPE)
          is_struct_init = TRUE;
        FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (node), ix, field, val)
          {
            if (field && is_struct_init)
              {
                pp_character (buffer, '.');
                dump_generic_node (buffer, field, spc, flags, false);
                pp_string (buffer, "=");
              }
            if (val && TREE_CODE (val) == ADDR_EXPR)
              if (TREE_CODE (TREE_OPERAND (val, 0)) == FUNCTION_DECL)
                val = TREE_OPERAND (val, 0);
            if (val && TREE_CODE (val) == FUNCTION_DECL)
                dump_decl_name (buffer, val, flags);
            else
                dump_generic_node (buffer, val, spc, flags, false);
            if (ix != VEC_length (constructor_elt, CONSTRUCTOR_ELTS (node)) - 1)
              {
                pp_character (buffer, ',');
                pp_space (buffer);
              }
          }
        pp_character (buffer, '}');
      }
      break;
 
    case COMPOUND_EXPR:
      {
        tree *tp;
        if (flags & TDF_SLIM)
          {
            pp_string (buffer, "<COMPOUND_EXPR>");
            break;
          }
 
        dump_generic_node (buffer, TREE_OPERAND (node, 0),
                           spc, flags, !(flags & TDF_SLIM));
        if (flags & TDF_SLIM)
          newline_and_indent (buffer, spc);
        else
          {
            pp_character (buffer, ',');
            pp_space (buffer);
          }
 
        for (tp = &TREE_OPERAND (node, 1);
             TREE_CODE (*tp) == COMPOUND_EXPR;
             tp = &TREE_OPERAND (*tp, 1))
          {
            dump_generic_node (buffer, TREE_OPERAND (*tp, 0),
                               spc, flags, !(flags & TDF_SLIM));
            if (flags & TDF_SLIM)
              newline_and_indent (buffer, spc);
            else
              {
                pp_character (buffer, ',');
                pp_space (buffer);
              }
          }
 
        dump_generic_node (buffer, *tp, spc, flags, !(flags & TDF_SLIM));
      }
      break;
 
    case STATEMENT_LIST:
      {
        tree_stmt_iterator si;
        bool first = true;
 
        if (flags & TDF_SLIM)
          {
            pp_string (buffer, "<STATEMENT_LIST>");
            break;
          }
 
        for (si = tsi_start (node); !tsi_end_p (si); tsi_next (&si))
          {
            if (!first)
              newline_and_indent (buffer, spc);
            else
              first = false;
            dump_generic_node (buffer, tsi_stmt (si), spc, flags, true);
          }
      }
      break;
 
    case MODIFY_EXPR:
    case INIT_EXPR:
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_space (buffer);
      pp_character (buffer, '=');
      pp_space (buffer);
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
      break;
 
    case TARGET_EXPR:
      pp_string (buffer, "TARGET_EXPR <");
      dump_generic_node (buffer, TARGET_EXPR_SLOT (node), spc, flags, false);
      pp_character (buffer, ',');
      pp_space (buffer);
      dump_generic_node (buffer, TARGET_EXPR_INITIAL (node), spc, flags, false);
      pp_character (buffer, '>');
      break;
 
    case DECL_EXPR:
      print_declaration (buffer, DECL_EXPR_DECL (node), spc, flags);
      is_stmt = false;
      break;
 
    case COND_EXPR:
      if (TREE_TYPE (node) == NULL || TREE_TYPE (node) == void_type_node)
        {
          pp_string (buffer, "if (");
          dump_generic_node (buffer, COND_EXPR_COND (node), spc, flags, false);
          pp_character (buffer, ')');
          /* The lowered cond_exprs should always be printed in full.  */
          if (COND_EXPR_THEN (node)
              && (IS_EMPTY_STMT (COND_EXPR_THEN (node))
                  || TREE_CODE (COND_EXPR_THEN (node)) == GOTO_EXPR)
              && COND_EXPR_ELSE (node)
              && (IS_EMPTY_STMT (COND_EXPR_ELSE (node))
                  || TREE_CODE (COND_EXPR_ELSE (node)) == GOTO_EXPR))
            {
              pp_space (buffer);
              dump_generic_node (buffer, COND_EXPR_THEN (node), 0, flags, true);
              pp_string (buffer, " else ");
              dump_generic_node (buffer, COND_EXPR_ELSE (node), 0, flags, true);
            }
          else if (!(flags & TDF_SLIM))
            {
              /* Output COND_EXPR_THEN.  */
              if (COND_EXPR_THEN (node))
                {
                  newline_and_indent (buffer, spc+2);
                  pp_character (buffer, '{');
                  newline_and_indent (buffer, spc+4);
                  dump_generic_node (buffer, COND_EXPR_THEN (node), spc+4,
                                     flags, true);
                  newline_and_indent (buffer, spc+2);
                  pp_character (buffer, '}');
                }
 
              /* Output COND_EXPR_ELSE.  */
              if (COND_EXPR_ELSE (node))
                {
                  newline_and_indent (buffer, spc);
                  pp_string (buffer, "else");
                  newline_and_indent (buffer, spc+2);
                  pp_character (buffer, '{');
                  newline_and_indent (buffer, spc+4);
                  dump_generic_node (buffer, COND_EXPR_ELSE (node), spc+4,
                                     flags, true);
                  newline_and_indent (buffer, spc+2);
                  pp_character (buffer, '}');
                }
            }
          is_expr = false;
        }
      else
        {
          dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
          pp_space (buffer);
          pp_character (buffer, '?');
          pp_space (buffer);
          dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
          pp_space (buffer);
          pp_character (buffer, ':');
          pp_space (buffer);
          dump_generic_node (buffer, TREE_OPERAND (node, 2), spc, flags, false);
        }
      break;
 
    case BIND_EXPR:
      pp_character (buffer, '{');
      if (!(flags & TDF_SLIM))
        {
          if (BIND_EXPR_VARS (node))
            {
              pp_newline (buffer);
 
              for (op0 = BIND_EXPR_VARS (node); op0; op0 = TREE_CHAIN (op0))
                {
                  print_declaration (buffer, op0, spc+2, flags);
                  pp_newline (buffer);
                }
            }
 
          newline_and_indent (buffer, spc+2);
          dump_generic_node (buffer, BIND_EXPR_BODY (node), spc+2, flags, true);
          newline_and_indent (buffer, spc);
          pp_character (buffer, '}');
        }
      is_expr = false;
      break;
 
    case CALL_EXPR:
      print_call_name (buffer, node);
 
      /* Print parameters.  */
      pp_space (buffer);
      pp_character (buffer, '(');
      op1 = TREE_OPERAND (node, 1);
      if (op1)
        dump_generic_node (buffer, op1, spc, flags, false);
      pp_character (buffer, ')');
 
      op1 = TREE_OPERAND (node, 2);
      if (op1)
        {
          pp_string (buffer, " [static-chain: ");
          dump_generic_node (buffer, op1, spc, flags, false);
          pp_character (buffer, ']');
        }
 
      if (CALL_EXPR_RETURN_SLOT_OPT (node))
        pp_string (buffer, " [return slot optimization]");
      if (CALL_EXPR_TAILCALL (node))
        pp_string (buffer, " [tail call]");
      break;
 
    case WITH_CLEANUP_EXPR:
      NIY;
      break;
 
    case CLEANUP_POINT_EXPR:
      pp_string (buffer, "<<cleanup_point ");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, ">>");
      break;
 
    case PLACEHOLDER_EXPR:
      pp_string (buffer, "<PLACEHOLDER_EXPR ");
      dump_generic_node (buffer, TREE_TYPE (node), spc, flags, false);
      pp_character (buffer, '>');
      break;
 
      /* Binary arithmetic and logic expressions.  */
    case WIDEN_SUM_EXPR:
    case WIDEN_MULT_EXPR:
    case MULT_EXPR:
    case PLUS_EXPR:
    case MINUS_EXPR:
    case TRUNC_DIV_EXPR:
    case CEIL_DIV_EXPR:
    case FLOOR_DIV_EXPR:
    case ROUND_DIV_EXPR:
    case TRUNC_MOD_EXPR:
    case CEIL_MOD_EXPR:
    case FLOOR_MOD_EXPR:
    case ROUND_MOD_EXPR:
    case RDIV_EXPR:
    case EXACT_DIV_EXPR:
    case LSHIFT_EXPR:
    case RSHIFT_EXPR:
    case LROTATE_EXPR:
    case RROTATE_EXPR:
    case VEC_LSHIFT_EXPR:
    case VEC_RSHIFT_EXPR:
    case BIT_IOR_EXPR:
    case BIT_XOR_EXPR:
    case BIT_AND_EXPR:
    case TRUTH_ANDIF_EXPR:
    case TRUTH_ORIF_EXPR:
    case TRUTH_AND_EXPR:
    case TRUTH_OR_EXPR:
    case TRUTH_XOR_EXPR:
    case LT_EXPR:
    case LE_EXPR:
    case GT_EXPR:
    case GE_EXPR:
    case EQ_EXPR:
    case NE_EXPR:
    case UNLT_EXPR:
    case UNLE_EXPR:
    case UNGT_EXPR:
    case UNGE_EXPR:
    case UNEQ_EXPR:
    case LTGT_EXPR:
    case ORDERED_EXPR:
    case UNORDERED_EXPR:
      {
        const char *op = op_symbol (node);
        op0 = TREE_OPERAND (node, 0);
        op1 = TREE_OPERAND (node, 1);
 
        /* When the operands are expressions with less priority,
           keep semantics of the tree representation.  */
        if (op_prio (op0) < op_prio (node))
          {
            pp_character (buffer, '(');
            dump_generic_node (buffer, op0, spc, flags, false);
            pp_character (buffer, ')');
          }
        else
          dump_generic_node (buffer, op0, spc, flags, false);
 
        pp_space (buffer);
        pp_string (buffer, op);
        pp_space (buffer);
 
        /* When the operands are expressions with less priority,
           keep semantics of the tree representation.  */
        if (op_prio (op1) < op_prio (node))
          {
            pp_character (buffer, '(');
            dump_generic_node (buffer, op1, spc, flags, false);
            pp_character (buffer, ')');
          }
        else
          dump_generic_node (buffer, op1, spc, flags, false);
      }
      break;
 
      /* Unary arithmetic and logic expressions.  */
    case NEGATE_EXPR:
    case BIT_NOT_EXPR:
    case TRUTH_NOT_EXPR:
    case ADDR_EXPR:
    case PREDECREMENT_EXPR:
    case PREINCREMENT_EXPR:
    case ALIGN_INDIRECT_REF:
    case MISALIGNED_INDIRECT_REF:
    case INDIRECT_REF:
      if (TREE_CODE (node) == ADDR_EXPR
          && (TREE_CODE (TREE_OPERAND (node, 0)) == STRING_CST
              || TREE_CODE (TREE_OPERAND (node, 0)) == FUNCTION_DECL))
        ;       /* Do not output '&' for strings and function pointers.  */
      else
        pp_string (buffer, op_symbol (node));
 
      if (op_prio (TREE_OPERAND (node, 0)) < op_prio (node))
        {
          pp_character (buffer, '(');
          dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
          pp_character (buffer, ')');
        }
      else
        dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
 
      if (TREE_CODE (node) == MISALIGNED_INDIRECT_REF)
        {
          pp_string (buffer, "{misalignment: ");
          dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
          pp_character (buffer, '}');
        }
      break;
 
    case POSTDECREMENT_EXPR:
    case POSTINCREMENT_EXPR:
      if (op_prio (TREE_OPERAND (node, 0)) < op_prio (node))
        {
          pp_character (buffer, '(');
          dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
          pp_character (buffer, ')');
        }
      else
        dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, op_symbol (node));
      break;
 
    case MIN_EXPR:
      pp_string (buffer, "MIN_EXPR <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
      pp_character (buffer, '>');
      break;
 
    case MAX_EXPR:
      pp_string (buffer, "MAX_EXPR <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
      pp_character (buffer, '>');
      break;
 
    case ABS_EXPR:
      pp_string (buffer, "ABS_EXPR <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_character (buffer, '>');
      break;
 
    case RANGE_EXPR:
      NIY;
      break;
 
    case FIX_TRUNC_EXPR:
    case FIX_CEIL_EXPR:
    case FIX_FLOOR_EXPR:
    case FIX_ROUND_EXPR:
    case FLOAT_EXPR:
    case CONVERT_EXPR:
    case NOP_EXPR:
      type = TREE_TYPE (node);
      op0 = TREE_OPERAND (node, 0);
      if (type != TREE_TYPE (op0))
        {
          pp_character (buffer, '(');
          dump_generic_node (buffer, type, spc, flags, false);
          pp_string (buffer, ") ");
        }
      if (op_prio (op0) < op_prio (node))
        pp_character (buffer, '(');
      dump_generic_node (buffer, op0, spc, flags, false);
      if (op_prio (op0) < op_prio (node))
        pp_character (buffer, ')');
      break;
 
    case VIEW_CONVERT_EXPR:
      pp_string (buffer, "VIEW_CONVERT_EXPR<");
      dump_generic_node (buffer, TREE_TYPE (node), spc, flags, false);
      pp_string (buffer, ">(");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_character (buffer, ')');
      break;
 
    case NON_LVALUE_EXPR:
      pp_string (buffer, "NON_LVALUE_EXPR <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_character (buffer, '>');
      break;
 
    case SAVE_EXPR:
      pp_string (buffer, "SAVE_EXPR <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_character (buffer, '>');
      break;
 
    case COMPLEX_EXPR:
      pp_string (buffer, "COMPLEX_EXPR <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
      pp_string (buffer, ">");
      break;
 
    case CONJ_EXPR:
      pp_string (buffer, "CONJ_EXPR <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, ">");
      break;
 
    case REALPART_EXPR:
      pp_string (buffer, "REALPART_EXPR <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, ">");
      break;
 
    case IMAGPART_EXPR:
      pp_string (buffer, "IMAGPART_EXPR <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, ">");
      break;
 
    case VA_ARG_EXPR:
      pp_string (buffer, "VA_ARG_EXPR <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, ">");
      break;
 
    case TRY_FINALLY_EXPR:
    case TRY_CATCH_EXPR:
      pp_string (buffer, "try");
      newline_and_indent (buffer, spc+2);
      pp_string (buffer, "{");
      newline_and_indent (buffer, spc+4);
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc+4, flags, true);
      newline_and_indent (buffer, spc+2);
      pp_string (buffer, "}");
      newline_and_indent (buffer, spc);
      pp_string (buffer,
                         (TREE_CODE (node) == TRY_CATCH_EXPR) ? "catch" : "finally");
      newline_and_indent (buffer, spc+2);
      pp_string (buffer, "{");
      newline_and_indent (buffer, spc+4);
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc+4, flags, true);
      newline_and_indent (buffer, spc+2);
      pp_string (buffer, "}");
      is_expr = false;
      break;
 
    case CATCH_EXPR:
      pp_string (buffer, "catch (");
      dump_generic_node (buffer, CATCH_TYPES (node), spc+2, flags, false);
      pp_string (buffer, ")");
      newline_and_indent (buffer, spc+2);
      pp_string (buffer, "{");
      newline_and_indent (buffer, spc+4);
      dump_generic_node (buffer, CATCH_BODY (node), spc+4, flags, true);
      newline_and_indent (buffer, spc+2);
      pp_string (buffer, "}");
      is_expr = false;
      break;
 
    case EH_FILTER_EXPR:
      pp_string (buffer, "<<<eh_filter (");
      dump_generic_node (buffer, EH_FILTER_TYPES (node), spc+2, flags, false);
      pp_string (buffer, ")>>>");
      newline_and_indent (buffer, spc+2);
      pp_string (buffer, "{");
      newline_and_indent (buffer, spc+4);
      dump_generic_node (buffer, EH_FILTER_FAILURE (node), spc+4, flags, true);
      newline_and_indent (buffer, spc+2);
      pp_string (buffer, "}");
      is_expr = false;
      break;
 
    case LABEL_EXPR:
      op0 = TREE_OPERAND (node, 0);
      /* If this is for break or continue, don't bother printing it.  */
      if (DECL_NAME (op0))
        {
          const char *name = IDENTIFIER_POINTER (DECL_NAME (op0));
          if (strcmp (name, "break") == 0
              || strcmp (name, "continue") == 0)
            break;
        }
      dump_generic_node (buffer, op0, spc, flags, false);
      pp_character (buffer, ':');
      if (DECL_NONLOCAL (op0))
        pp_string (buffer, " [non-local]");
      break;
 
    case EXC_PTR_EXPR:
      pp_string (buffer, "<<<exception object>>>");
      break;
 
    case FILTER_EXPR:
      pp_string (buffer, "<<<filter object>>>");
      break;
 
    case LOOP_EXPR:
      pp_string (buffer, "while (1)");
      if (!(flags & TDF_SLIM))
        {
          newline_and_indent (buffer, spc+2);
          pp_character (buffer, '{');
          newline_and_indent (buffer, spc+4);
          dump_generic_node (buffer, LOOP_EXPR_BODY (node), spc+4, flags, true);
          newline_and_indent (buffer, spc+2);
          pp_character (buffer, '}');
        }
      is_expr = false;
      break;
 
    case RETURN_EXPR:
      pp_string (buffer, "return");
      op0 = TREE_OPERAND (node, 0);
      if (op0)
        {
          pp_space (buffer);
          if (TREE_CODE (op0) == MODIFY_EXPR)
            dump_generic_node (buffer, TREE_OPERAND (op0, 1), spc, flags, false);
          else
            dump_generic_node (buffer, op0, spc, flags, false);
        }
      break;
 
    case EXIT_EXPR:
      pp_string (buffer, "if (");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, ") break");
      break;
 
    case SWITCH_EXPR:
      pp_string (buffer, "switch (");
      dump_generic_node (buffer, SWITCH_COND (node), spc, flags, false);
      pp_character (buffer, ')');
      if (!(flags & TDF_SLIM))
        {
          newline_and_indent (buffer, spc+2);
          pp_character (buffer, '{');
          if (SWITCH_BODY (node))
            {
              newline_and_indent (buffer, spc+4);
              dump_generic_node (buffer, SWITCH_BODY (node), spc+4, flags,
                                 true);
            }
          else
            {
              tree vec = SWITCH_LABELS (node);
              size_t i, n = TREE_VEC_LENGTH (vec);
              for (i = 0; i < n; ++i)
                {
                  tree elt = TREE_VEC_ELT (vec, i);
                  newline_and_indent (buffer, spc+4);
                  if (elt)
                    {
                      dump_generic_node (buffer, elt, spc+4, flags, false);
                      pp_string (buffer, " goto ");
                      dump_generic_node (buffer, CASE_LABEL (elt), spc+4,
                                         flags, true);
                      pp_semicolon (buffer);
                    }
                  else
                    pp_string (buffer, "case ???: goto ???;");
                }
            }
          newline_and_indent (buffer, spc+2);
          pp_character (buffer, '}');
        }
      is_expr = false;
      break;
 
    case GOTO_EXPR:
      op0 = GOTO_DESTINATION (node);
      if (TREE_CODE (op0) != SSA_NAME && DECL_P (op0) && DECL_NAME (op0))
        {
          const char *name = IDENTIFIER_POINTER (DECL_NAME (op0));
          if (strcmp (name, "break") == 0
              || strcmp (name, "continue") == 0)
            {
              pp_string (buffer, name);
              break;
            }
        }
      pp_string (buffer, "goto ");
      dump_generic_node (buffer, op0, spc, flags, false);
      break;
 
    case RESX_EXPR:
      pp_string (buffer, "resx ");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      break;
 
    case ASM_EXPR:
      pp_string (buffer, "__asm__");
      if (ASM_VOLATILE_P (node))
        pp_string (buffer, " __volatile__");
      pp_character (buffer, '(');
      dump_generic_node (buffer, ASM_STRING (node), spc, flags, false);
      pp_character (buffer, ':');
      dump_generic_node (buffer, ASM_OUTPUTS (node), spc, flags, false);
      pp_character (buffer, ':');
      dump_generic_node (buffer, ASM_INPUTS (node), spc, flags, false);
      if (ASM_CLOBBERS (node))
        {
          pp_character (buffer, ':');
          dump_generic_node (buffer, ASM_CLOBBERS (node), spc, flags, false);
        }
      pp_string (buffer, ")");
      break;
 
    case CASE_LABEL_EXPR:
      if (CASE_LOW (node) && CASE_HIGH (node))
        {
          pp_string (buffer, "case ");
          dump_generic_node (buffer, CASE_LOW (node), spc, flags, false);
          pp_string (buffer, " ... ");
          dump_generic_node (buffer, CASE_HIGH (node), spc, flags, false);
        }
      else if (CASE_LOW (node))
        {
          pp_string (buffer, "case ");
          dump_generic_node (buffer, CASE_LOW (node), spc, flags, false);
        }
      else
        pp_string (buffer, "default ");
      pp_character (buffer, ':');
      break;
 
    case OBJ_TYPE_REF:
      pp_string (buffer, "OBJ_TYPE_REF(");
      dump_generic_node (buffer, OBJ_TYPE_REF_EXPR (node), spc, flags, false);
      pp_character (buffer, ';');
      dump_generic_node (buffer, OBJ_TYPE_REF_OBJECT (node), spc, flags, false);
      pp_character (buffer, '-');
      pp_character (buffer, '>');
      dump_generic_node (buffer, OBJ_TYPE_REF_TOKEN (node), spc, flags, false);
      pp_character (buffer, ')');
      break;
 
    case PHI_NODE:
      {
        int i;
 
        dump_generic_node (buffer, PHI_RESULT (node), spc, flags, false);
        pp_string (buffer, " = PHI <");
        for (i = 0; i < PHI_NUM_ARGS (node); i++)
          {
            dump_generic_node (buffer, PHI_ARG_DEF (node, i), spc, flags, false);
            pp_string (buffer, "(");
            pp_decimal_int (buffer, PHI_ARG_EDGE (node, i)->src->index);
            pp_string (buffer, ")");
            if (i < PHI_NUM_ARGS (node) - 1)
              pp_string (buffer, ", ");
          }
        pp_string (buffer, ">;");
      }
      break;
 
    case SSA_NAME:
      dump_generic_node (buffer, SSA_NAME_VAR (node), spc, flags, false);
      pp_string (buffer, "_");
      pp_decimal_int (buffer, SSA_NAME_VERSION (node));
      if (SSA_NAME_OCCURS_IN_ABNORMAL_PHI (node))
        pp_string (buffer, "(ab)");
      break;
 
    case WITH_SIZE_EXPR:
      pp_string (buffer, "WITH_SIZE_EXPR <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
      pp_string (buffer, ">");
      break;
 
    case VALUE_HANDLE:
      pp_printf (buffer, "VH.%d", VALUE_HANDLE_ID (node));
      break;
 
    case ASSERT_EXPR:
      pp_string (buffer, "ASSERT_EXPR <");
      dump_generic_node (buffer, ASSERT_EXPR_VAR (node), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, ASSERT_EXPR_COND (node), spc, flags, false);
      pp_string (buffer, ">");
      break;
 
    case SCEV_KNOWN:
      pp_string (buffer, "scev_known");
      break;
 
    case SCEV_NOT_KNOWN:
      pp_string (buffer, "scev_not_known");
      break;
 
    case POLYNOMIAL_CHREC:
      pp_string (buffer, "{");
      dump_generic_node (buffer, CHREC_LEFT (node), spc, flags, false);
      pp_string (buffer, ", +, ");
      dump_generic_node (buffer, CHREC_RIGHT (node), spc, flags, false);
      pp_string (buffer, "}_");
      dump_generic_node (buffer, CHREC_VAR (node), spc, flags, false);
      is_stmt = false;
      break;
 
    case REALIGN_LOAD_EXPR:
      pp_string (buffer, "REALIGN_LOAD <");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, TREE_OPERAND (node, 2), spc, flags, false);
      pp_string (buffer, ">");
      break;
 
    case VEC_COND_EXPR:
      pp_string (buffer, " VEC_COND_EXPR < ");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, " , ");
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
      pp_string (buffer, " , ");
      dump_generic_node (buffer, TREE_OPERAND (node, 2), spc, flags, false);
      pp_string (buffer, " > ");
      break;
 
    case DOT_PROD_EXPR:
      pp_string (buffer, " DOT_PROD_EXPR < ");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, " , ");
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
      pp_string (buffer, " , ");
      dump_generic_node (buffer, TREE_OPERAND (node, 2), spc, flags, false);
      pp_string (buffer, " > ");
      break;
 
    case OMP_PARALLEL:
      pp_string (buffer, "#pragma omp parallel");
      dump_omp_clauses (buffer, OMP_PARALLEL_CLAUSES (node), spc, flags);
      if (OMP_PARALLEL_FN (node))
        {
          pp_string (buffer, " [child fn: ");
          dump_generic_node (buffer, OMP_PARALLEL_FN (node), spc, flags, false);
 
          pp_string (buffer, " (");
 
          if (OMP_PARALLEL_DATA_ARG (node))
            dump_generic_node (buffer, OMP_PARALLEL_DATA_ARG (node), spc, flags,
                               false);
          else
            pp_string (buffer, "???");
 
          pp_string (buffer, ")]");
        }
 
    dump_omp_body:
      if (!(flags & TDF_SLIM) && OMP_BODY (node))
        {
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '{');
          newline_and_indent (buffer, spc + 4);
          dump_generic_node (buffer, OMP_BODY (node), spc + 4, flags, false);
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '}');
        }
      is_expr = false;
      break;
 
    case OMP_FOR:
      pp_string (buffer, "#pragma omp for");
      dump_omp_clauses (buffer, OMP_FOR_CLAUSES (node), spc, flags);
 
      if (!(flags & TDF_SLIM))
        {
          if (OMP_FOR_PRE_BODY (node))
            {
              newline_and_indent (buffer, spc + 2);
              pp_character (buffer, '{');
              spc += 4;
              newline_and_indent (buffer, spc);
              dump_generic_node (buffer, OMP_FOR_PRE_BODY (node),
                  spc, flags, false);
            }
          newline_and_indent (buffer, spc);
          pp_string (buffer, "for (");
          dump_generic_node (buffer, OMP_FOR_INIT (node), spc, flags, false);
          pp_string (buffer, "; ");
          dump_generic_node (buffer, OMP_FOR_COND (node), spc, flags, false);
          pp_string (buffer, "; ");
          dump_generic_node (buffer, OMP_FOR_INCR (node), spc, flags, false);
          pp_string (buffer, ")");
          if (OMP_FOR_BODY (node))
            {
              newline_and_indent (buffer, spc + 2);
              pp_character (buffer, '{');
              newline_and_indent (buffer, spc + 4);
              dump_generic_node (buffer, OMP_FOR_BODY (node), spc + 4, flags,
                  false);
              newline_and_indent (buffer, spc + 2);
              pp_character (buffer, '}');
            }
          if (OMP_FOR_PRE_BODY (node))
            {
              spc -= 4;
              newline_and_indent (buffer, spc + 2);
              pp_character (buffer, '}');
            }
        }
      is_expr = false;
      break;
 
    case OMP_SECTIONS:
      pp_string (buffer, "#pragma omp sections");
      dump_omp_clauses (buffer, OMP_SECTIONS_CLAUSES (node), spc, flags);
      goto dump_omp_body;
 
    case OMP_SECTION:
      pp_string (buffer, "#pragma omp section");
      goto dump_omp_body;
 
    case OMP_MASTER:
      pp_string (buffer, "#pragma omp master");
      goto dump_omp_body;
 
    case OMP_ORDERED:
      pp_string (buffer, "#pragma omp ordered");
      goto dump_omp_body;
 
    case OMP_CRITICAL:
      pp_string (buffer, "#pragma omp critical");
      if (OMP_CRITICAL_NAME (node))
        {
          pp_space (buffer);
          pp_character (buffer, '(');
          dump_generic_node (buffer, OMP_CRITICAL_NAME (node), spc,
                             flags, false);
          pp_character (buffer, ')');
        }
      goto dump_omp_body;
 
    case OMP_ATOMIC:
      pp_string (buffer, "#pragma omp atomic");
      newline_and_indent (buffer, spc + 2);
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_space (buffer);
      pp_character (buffer, '=');
      pp_space (buffer);
      dump_generic_node (buffer, TREE_OPERAND (node, 1), spc, flags, false);
      break;
 
    case OMP_SINGLE:
      pp_string (buffer, "#pragma omp single");
      dump_omp_clauses (buffer, OMP_SINGLE_CLAUSES (node), spc, flags);
      goto dump_omp_body;
 
    case OMP_RETURN:
      pp_string (buffer, "OMP_RETURN");
      if (OMP_RETURN_NOWAIT (node))
        pp_string (buffer, " [nowait]");
      is_expr = false;
      break;
 
    case OMP_CONTINUE:
      pp_string (buffer, "OMP_CONTINUE");
      is_expr = false;
      break;
 
    case OMP_CLAUSE:
      dump_omp_clause (buffer, node, spc, flags);
      is_expr = false;
      break;
 
    case REDUC_MAX_EXPR:
      pp_string (buffer, " REDUC_MAX_EXPR < ");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, " > ");
      break;
 
    case REDUC_MIN_EXPR:
      pp_string (buffer, " REDUC_MIN_EXPR < ");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, " > ");
      break;
 
    case REDUC_PLUS_EXPR:
      pp_string (buffer, " REDUC_PLUS_EXPR < ");
      dump_generic_node (buffer, TREE_OPERAND (node, 0), spc, flags, false);
      pp_string (buffer, " > ");
      break;
 
    case BLOCK:
      {
        tree t;
        pp_string (buffer, "BLOCK");
 
        if (BLOCK_ABSTRACT (node))
          pp_string (buffer, " [abstract]");
 
        if (TREE_ASM_WRITTEN (node))
          pp_string (buffer, " [written]");
 
        newline_and_indent (buffer, spc + 2);
 
        if (BLOCK_SUPERCONTEXT (node))
          {
            pp_string (buffer, "SUPERCONTEXT: ");
            if (TREE_CODE (BLOCK_SUPERCONTEXT (node)) == BLOCK)
              pp_printf (buffer, "BLOCK %p",
                         (void *)BLOCK_SUPERCONTEXT (node));
            else
              dump_generic_node (buffer, BLOCK_SUPERCONTEXT (node), 0, flags,
                                 false);
            newline_and_indent (buffer, spc + 2);
          }
 
        if (BLOCK_SUBBLOCKS (node))
          {
            pp_string (buffer, "SUBBLOCKS: ");
            for (t = BLOCK_SUBBLOCKS (node); t; t = BLOCK_CHAIN (t))
              pp_printf (buffer, "%p ", (void *)t);
            newline_and_indent (buffer, spc + 2);
          }
 
        if (BLOCK_VARS (node))
          {
            pp_string (buffer, "VARS: ");
            for (t = BLOCK_VARS (node); t; t = TREE_CHAIN (t))
              {
                dump_generic_node (buffer, t, 0, flags, false);
                pp_string (buffer, " ");
              }
            newline_and_indent (buffer, spc + 2);
          }
 
        if (BLOCK_ABSTRACT_ORIGIN (node))
          {
            pp_string (buffer, "ABSTRACT_ORIGIN: ");
            if (TREE_CODE (BLOCK_ABSTRACT_ORIGIN (node)) == BLOCK)
              pp_printf (buffer, "BLOCK %p",
                         (void *)BLOCK_ABSTRACT_ORIGIN (node));
            else
              dump_generic_node (buffer, BLOCK_ABSTRACT_ORIGIN (node), 0, flags,
                                 false);
            newline_and_indent (buffer, spc + 2);
          }
      }
    break;
 
    default:
      NIY;
    }
 
  if (is_stmt && is_expr)
    pp_semicolon (buffer);
  pp_write_text_to_stream (buffer);
 
  return spc;
}
 
/* Print the declaration of a variable.  */
 
static void
print_declaration (pretty_printer *buffer, tree t, int spc, int flags)
{
  INDENT (spc);
 
  if (TREE_CODE (t) == TYPE_DECL)
    pp_string (buffer, "typedef ");
 
  if (CODE_CONTAINS_STRUCT (TREE_CODE (t), TS_DECL_WRTL) && DECL_REGISTER (t))
    pp_string (buffer, "register ");
 
  if (TREE_PUBLIC (t) && DECL_EXTERNAL (t))
    pp_string (buffer, "extern ");
  else if (TREE_STATIC (t))
    pp_string (buffer, "static ");
 
  /* Print the type and name.  */
  if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
    {
      tree tmp;
 
      /* Print array's type.  */
      tmp = TREE_TYPE (t);
      while (TREE_CODE (TREE_TYPE (tmp)) == ARRAY_TYPE)
        tmp = TREE_TYPE (tmp);
      dump_generic_node (buffer, TREE_TYPE (tmp), spc, flags, false);
 
      /* Print variable's name.  */
      pp_space (buffer);
      dump_generic_node (buffer, t, spc, flags, false);
 
      /* Print the dimensions.  */
      tmp = TREE_TYPE (t);
      while (TREE_CODE (tmp) == ARRAY_TYPE)
        {
          dump_array_domain (buffer, TYPE_DOMAIN (tmp), spc, flags);
          tmp = TREE_TYPE (tmp);
        }
    }
  else if (TREE_CODE (t) == FUNCTION_DECL)
    {
      dump_generic_node (buffer, TREE_TYPE (TREE_TYPE (t)), spc, flags, false);
      pp_space (buffer);
      dump_decl_name (buffer, t, flags);
      dump_function_declaration (buffer, TREE_TYPE (t), spc, flags);
    }
  else
    {
      /* Print type declaration.  */
      dump_generic_node (buffer, TREE_TYPE (t), spc, flags, false);
 
      /* Print variable's name.  */
      pp_space (buffer);
      dump_generic_node (buffer, t, spc, flags, false);
    }
 
  if (TREE_CODE (t) == VAR_DECL && DECL_HARD_REGISTER (t))
    {
      pp_string (buffer, " __asm__ ");
      pp_character (buffer, '(');
      dump_generic_node (buffer, DECL_ASSEMBLER_NAME (t), spc, flags, false);
      pp_character (buffer, ')');
    }
 
  /* The initial value of a function serves to determine wether the function
     is declared or defined.  So the following does not apply to function
     nodes.  */
  if (TREE_CODE (t) != FUNCTION_DECL)
    {
      /* Print the initial value.  */
      if (DECL_INITIAL (t))
        {
          pp_space (buffer);
          pp_character (buffer, '=');
          pp_space (buffer);
          dump_generic_node (buffer, DECL_INITIAL (t), spc, flags, false);
        }
    }
 
  if (TREE_CODE (t) == VAR_DECL && DECL_HAS_VALUE_EXPR_P (t))
    {
      pp_string (buffer, " [value-expr: ");
      dump_generic_node (buffer, DECL_VALUE_EXPR (t), spc, flags, false);
      pp_character (buffer, ']');
    }
 
  pp_character (buffer, ';');
}
 
 
/* Prints a structure: name, fields, and methods.
   FIXME: Still incomplete.  */
 
static void
print_struct_decl (pretty_printer *buffer, tree node, int spc, int flags)
{
  /* Print the name of the structure.  */
  if (TYPE_NAME (node))
    {
      INDENT (spc);
      if (TREE_CODE (node) == RECORD_TYPE)
        pp_string (buffer, "struct ");
      else if ((TREE_CODE (node) == UNION_TYPE
                || TREE_CODE (node) == QUAL_UNION_TYPE))
        pp_string (buffer, "union ");
 
      dump_generic_node (buffer, TYPE_NAME (node), spc, 0, false);
    }
 
  /* Print the contents of the structure.  */
  pp_newline (buffer);
  INDENT (spc);
  pp_character (buffer, '{');
  pp_newline (buffer);
 
  /* Print the fields of the structure.  */
  {
    tree tmp;
    tmp = TYPE_FIELDS (node);
    while (tmp)
      {
        /* Avoid to print recursively the structure.  */
        /* FIXME : Not implemented correctly...,
           what about the case when we have a cycle in the contain graph? ...
           Maybe this could be solved by looking at the scope in which the
           structure was declared.  */
        if (TREE_TYPE (tmp) != node
            || (TREE_CODE (TREE_TYPE (tmp)) == POINTER_TYPE
                && TREE_TYPE (TREE_TYPE (tmp)) != node))
          {
            print_declaration (buffer, tmp, spc+2, flags);
            pp_newline (buffer);
          }
        tmp = TREE_CHAIN (tmp);
      }
  }
  INDENT (spc);
  pp_character (buffer, '}');
}
 
/* Return the priority of the operator OP.
 
   From lowest to highest precedence with either left-to-right (L-R)
   or right-to-left (R-L) associativity]:
 
     1  [L-R] ,
     2  [R-L] = += -= *= /= %= &= ^= |= <<= >>=
     3  [R-L] ?:
     4  [L-R] ||
     5  [L-R] &&
     6  [L-R] |
     7  [L-R] ^
     8  [L-R] &
     9  [L-R] == !=
    10  [L-R] < <= > >=
    11  [L-R] << >>
    12  [L-R] + -
    13  [L-R] * / %
    14  [R-L] ! ~ ++ -- + - * & (type) sizeof
    15  [L-R] fn() [] -> .
 
   unary +, - and * have higher precedence than the corresponding binary
   operators.  */
 
static int
op_prio (tree op)
{
  if (op == NULL)
    return 9999;
 
  switch (TREE_CODE (op))
    {
    case TREE_LIST:
    case COMPOUND_EXPR:
    case BIND_EXPR:
      return 1;
 
    case MODIFY_EXPR:
    case INIT_EXPR:
      return 2;
 
    case COND_EXPR:
      return 3;
 
    case TRUTH_OR_EXPR:
    case TRUTH_ORIF_EXPR:
      return 4;
 
    case TRUTH_AND_EXPR:
    case TRUTH_ANDIF_EXPR:
      return 5;
 
    case BIT_IOR_EXPR:
      return 6;
 
    case BIT_XOR_EXPR:
    case TRUTH_XOR_EXPR:
      return 7;
 
    case BIT_AND_EXPR:
      return 8;
 
    case EQ_EXPR:
    case NE_EXPR:
      return 9;
 
    case UNLT_EXPR:
    case UNLE_EXPR:
    case UNGT_EXPR:
    case UNGE_EXPR:
    case UNEQ_EXPR:
    case LTGT_EXPR:
    case ORDERED_EXPR:
    case UNORDERED_EXPR:
    case LT_EXPR:
    case LE_EXPR:
    case GT_EXPR:
    case GE_EXPR:
      return 10;
 
    case LSHIFT_EXPR:
    case RSHIFT_EXPR:
    case LROTATE_EXPR:
    case RROTATE_EXPR:
      return 11;
 
    case WIDEN_SUM_EXPR:
    case PLUS_EXPR:
    case MINUS_EXPR:
      return 12;
 
    case WIDEN_MULT_EXPR:
    case DOT_PROD_EXPR:
    case MULT_EXPR:
    case TRUNC_DIV_EXPR:
    case CEIL_DIV_EXPR:
    case FLOOR_DIV_EXPR:
    case ROUND_DIV_EXPR:
    case RDIV_EXPR:
    case EXACT_DIV_EXPR:
    case TRUNC_MOD_EXPR:
    case CEIL_MOD_EXPR:
    case FLOOR_MOD_EXPR:
    case ROUND_MOD_EXPR:
      return 13;
 
    case TRUTH_NOT_EXPR:
    case BIT_NOT_EXPR:
    case POSTINCREMENT_EXPR:
    case POSTDECREMENT_EXPR:
    case PREINCREMENT_EXPR:
    case PREDECREMENT_EXPR:
    case NEGATE_EXPR:
    case ALIGN_INDIRECT_REF:
    case MISALIGNED_INDIRECT_REF:
    case INDIRECT_REF:
    case ADDR_EXPR:
    case FLOAT_EXPR:
    case NOP_EXPR:
    case CONVERT_EXPR:
    case FIX_TRUNC_EXPR:
    case FIX_CEIL_EXPR:
    case FIX_FLOOR_EXPR:
    case FIX_ROUND_EXPR:
    case TARGET_EXPR:
      return 14;
 
    case CALL_EXPR:
    case ARRAY_REF:
    case ARRAY_RANGE_REF:
    case COMPONENT_REF:
      return 15;
 
      /* Special expressions.  */
    case MIN_EXPR:
    case MAX_EXPR:
    case ABS_EXPR:
    case REALPART_EXPR:
    case IMAGPART_EXPR:
    case REDUC_MAX_EXPR:
    case REDUC_MIN_EXPR:
    case REDUC_PLUS_EXPR:
    case VEC_LSHIFT_EXPR:
    case VEC_RSHIFT_EXPR:
      return 16;
 
    case SAVE_EXPR:
    case NON_LVALUE_EXPR:
      return op_prio (TREE_OPERAND (op, 0));
 
    default:
      /* Return an arbitrarily high precedence to avoid surrounding single
         VAR_DECLs in ()s.  */
      return 9999;
    }
}
 
 
/* Return the symbol associated with operator OP.  */
 
static const char *
op_symbol_1 (enum tree_code code)
{
  switch (code)
    {
    case MODIFY_EXPR:
      return "=";
 
    case TRUTH_OR_EXPR:
    case TRUTH_ORIF_EXPR:
      return "||";
 
    case TRUTH_AND_EXPR:
    case TRUTH_ANDIF_EXPR:
      return "&&";
 
    case BIT_IOR_EXPR:
      return "|";
 
    case TRUTH_XOR_EXPR:
    case BIT_XOR_EXPR:
      return "^";
 
    case ADDR_EXPR:
    case BIT_AND_EXPR:
      return "&";
 
    case ORDERED_EXPR:
      return "ord";
    case UNORDERED_EXPR:
      return "unord";
 
    case EQ_EXPR:
      return "==";
    case UNEQ_EXPR:
      return "u==";
 
    case NE_EXPR:
      return "!=";
 
    case LT_EXPR:
      return "<";
    case UNLT_EXPR:
      return "u<";
 
    case LE_EXPR:
      return "<=";
    case UNLE_EXPR:
      return "u<=";
 
    case GT_EXPR:
      return ">";
    case UNGT_EXPR:
      return "u>";
 
    case GE_EXPR:
      return ">=";
    case UNGE_EXPR:
      return "u>=";
 
    case LTGT_EXPR:
      return "<>";
 
    case LSHIFT_EXPR:
      return "<<";
 
    case RSHIFT_EXPR:
      return ">>";
 
    case LROTATE_EXPR:
      return "r<<";
 
    case RROTATE_EXPR:
      return "r>>";
 
    case VEC_LSHIFT_EXPR:
      return "v<<";
 
    case VEC_RSHIFT_EXPR:
      return "v>>";
 
    case PLUS_EXPR:
      return "+";
 
    case REDUC_PLUS_EXPR:
      return "r+";
 
    case WIDEN_SUM_EXPR:
      return "w+";
 
    case WIDEN_MULT_EXPR:
      return "w*";
 
    case NEGATE_EXPR:
    case MINUS_EXPR:
      return "-";
 
    case BIT_NOT_EXPR:
      return "~";
 
    case TRUTH_NOT_EXPR:
      return "!";
 
    case MULT_EXPR:
    case INDIRECT_REF:
      return "*";
 
    case ALIGN_INDIRECT_REF:
      return "A*";
 
    case MISALIGNED_INDIRECT_REF:
      return "M*";
 
    case TRUNC_DIV_EXPR:
    case RDIV_EXPR:
      return "/";
 
    case CEIL_DIV_EXPR:
      return "/[cl]";
 
    case FLOOR_DIV_EXPR:
      return "/[fl]";
 
    case ROUND_DIV_EXPR:
      return "/[rd]";
 
    case EXACT_DIV_EXPR:
      return "/[ex]";
 
    case TRUNC_MOD_EXPR:
      return "%";
 
    case CEIL_MOD_EXPR:
      return "%[cl]";
 
    case FLOOR_MOD_EXPR:
      return "%[fl]";
 
    case ROUND_MOD_EXPR:
      return "%[rd]";
 
    case PREDECREMENT_EXPR:
      return " --";
 
    case PREINCREMENT_EXPR:
      return " ++";
 
    case POSTDECREMENT_EXPR:
      return "-- ";
 
    case POSTINCREMENT_EXPR:
      return "++ ";
 
    case MAX_EXPR:
      return "max";
 
    case MIN_EXPR:
      return "min";
 
    default:
      return "<<< ??? >>>";
    }
}
 
static const char *
op_symbol (tree op)
{
  return op_symbol_1 (TREE_CODE (op));
}
 
/* Prints the name of a CALL_EXPR.  */
 
static void
print_call_name (pretty_printer *buffer, tree node)
{
  tree op0;
 
  gcc_assert (TREE_CODE (node) == CALL_EXPR);
 
  op0 = TREE_OPERAND (node, 0);
 
  if (TREE_CODE (op0) == NON_LVALUE_EXPR)
    op0 = TREE_OPERAND (op0, 0);
 
  switch (TREE_CODE (op0))
    {
    case VAR_DECL:
    case PARM_DECL:
      dump_function_name (buffer, op0);
      break;
 
    case ADDR_EXPR:
    case INDIRECT_REF:
    case NOP_EXPR:
      dump_generic_node (buffer, TREE_OPERAND (op0, 0), 0, 0, false);
      break;
 
    case COND_EXPR:
      pp_string (buffer, "(");
      dump_generic_node (buffer, TREE_OPERAND (op0, 0), 0, 0, false);
      pp_string (buffer, ") ? ");
      dump_generic_node (buffer, TREE_OPERAND (op0, 1), 0, 0, false);
      pp_string (buffer, " : ");
      dump_generic_node (buffer, TREE_OPERAND (op0, 2), 0, 0, false);
      break;
 
    case COMPONENT_REF:
      /* The function is a pointer contained in a structure.  */
      if (TREE_CODE (TREE_OPERAND (op0, 0)) == INDIRECT_REF ||
          TREE_CODE (TREE_OPERAND (op0, 0)) == VAR_DECL)
        dump_function_name (buffer, TREE_OPERAND (op0, 1));
      else
        dump_generic_node (buffer, TREE_OPERAND (op0, 0), 0, 0, false);
      /* else
         We can have several levels of structures and a function
         pointer inside.  This is not implemented yet...  */
      /*                  NIY;*/
      break;
 
    case ARRAY_REF:
      if (TREE_CODE (TREE_OPERAND (op0, 0)) == VAR_DECL)
        dump_function_name (buffer, TREE_OPERAND (op0, 0));
      else
        dump_generic_node (buffer, op0, 0, 0, false);
      break;
 
    case SSA_NAME:
    case OBJ_TYPE_REF:
      dump_generic_node (buffer, op0, 0, 0, false);
      break;
 
    default:
      NIY;
    }
}
 
/* Parses the string STR and replaces new-lines by '\n', tabs by '\t', ...  */
 
static void
pretty_print_string (pretty_printer *buffer, const char *str)
{
  if (str == NULL)
    return;
 
  while (*str)
    {
      switch (str[0])
        {
        case '\b':
          pp_string (buffer, "\\b");
          break;
 
        case '\f':
          pp_string (buffer, "\\f");
          break;
 
        case '\n':
          pp_string (buffer, "\\n");
          break;
 
        case '\r':
          pp_string (buffer, "\\r");
          break;
 
        case '\t':
          pp_string (buffer, "\\t");
          break;
 
        case '\v':
          pp_string (buffer, "\\v");
          break;
 
        case '\\':
          pp_string (buffer, "\\\\");
          break;
 
        case '\"':
          pp_string (buffer, "\\\"");
          break;
 
        case '\'':
          pp_string (buffer, "\\'");
          break;
 
          /* No need to handle \0; the loop terminates on \0.  */
 
        case '\1':
          pp_string (buffer, "\\1");
          break;
 
        case '\2':
          pp_string (buffer, "\\2");
          break;
 
        case '\3':
          pp_string (buffer, "\\3");
          break;
 
        case '\4':
          pp_string (buffer, "\\4");
          break;
 
        case '\5':
          pp_string (buffer, "\\5");
          break;
 
        case '\6':
          pp_string (buffer, "\\6");
          break;
 
        case '\7':
          pp_string (buffer, "\\7");
          break;
 
        default:
          pp_character (buffer, str[0]);
          break;
        }
      str++;
    }
}
 
static void
maybe_init_pretty_print (FILE *file)
{
  if (!initialized)
    {
      pp_construct (&buffer, /* prefix */NULL, /* line-width */0);
      pp_needs_newline (&buffer) = true;
      initialized = 1;
    }
 
  buffer.buffer->stream = file;
}
 
static void
newline_and_indent (pretty_printer *buffer, int spc)
{
  pp_newline (buffer);
  INDENT (spc);
}
 
static void
dump_vops (pretty_printer *buffer, tree stmt, int spc, int flags)
{
  tree use;
  use_operand_p use_p;
  def_operand_p def_p;
  use_operand_p kill_p;
  ssa_op_iter iter;
 
  if (!ssa_operands_active ())
    return;
 
  FOR_EACH_SSA_MAYDEF_OPERAND (def_p, use_p, stmt, iter)
    {
      pp_string (buffer, "#   ");
      dump_generic_node (buffer, DEF_FROM_PTR (def_p),
                         spc + 2, flags, false);
      pp_string (buffer, " = V_MAY_DEF <");
      dump_generic_node (buffer, USE_FROM_PTR (use_p),
                         spc + 2, flags, false);
      pp_string (buffer, ">;");
      newline_and_indent (buffer, spc);
    }
 
  FOR_EACH_SSA_MUSTDEF_OPERAND (def_p, kill_p, stmt, iter)
    {
      pp_string (buffer, "#   ");
      dump_generic_node (buffer, DEF_FROM_PTR (def_p),
                         spc + 2, flags, false);
      pp_string (buffer, " = V_MUST_DEF <");
      dump_generic_node (buffer, USE_FROM_PTR (kill_p),
                         spc + 2, flags, false);
      pp_string (buffer, ">;");
      newline_and_indent (buffer, spc);
    }
 
  FOR_EACH_SSA_TREE_OPERAND (use, stmt, iter, SSA_OP_VUSE)
    {
      pp_string (buffer, "#   VUSE <");
      dump_generic_node (buffer, use, spc + 2, flags, false);
      pp_string (buffer, ">;");
      newline_and_indent (buffer, spc);
    }
}
 
/* Dumps basic block BB to FILE with details described by FLAGS and
   indented by INDENT spaces.  */
 
void
dump_generic_bb (FILE *file, basic_block bb, int indent, int flags)
{
  maybe_init_pretty_print (file);
  dump_generic_bb_buff (&buffer, bb, indent, flags);
  pp_flush (&buffer);
}
 
/* Dumps header of basic block BB to buffer BUFFER indented by INDENT
   spaces and details described by flags.  */
 
static void
dump_bb_header (pretty_printer *buffer, basic_block bb, int indent, int flags)
{
  edge e;
  tree stmt;
  edge_iterator ei;
 
  if (flags & TDF_BLOCKS)
    {
      INDENT (indent);
      pp_string (buffer, "# BLOCK ");
      pp_decimal_int (buffer, bb->index);
      if (bb->frequency)
        {
          pp_string (buffer, " freq:");
          pp_decimal_int (buffer, bb->frequency);
        }
      if (bb->count)
        {
          pp_string (buffer, " count:");
          pp_widest_integer (buffer, bb->count);
        }
 
      if (flags & TDF_LINENO)
        {
          block_stmt_iterator bsi;
 
          for (bsi = bsi_start (bb); !bsi_end_p (bsi); bsi_next (&bsi))
            if (get_lineno (bsi_stmt (bsi)) != -1)
              {
                pp_string (buffer, ", starting at line ");
                pp_decimal_int (buffer, get_lineno (bsi_stmt (bsi)));
                break;
              }
        }
      newline_and_indent (buffer, indent);
 
      pp_string (buffer, "# PRED:");
      pp_write_text_to_stream (buffer);
      FOR_EACH_EDGE (e, ei, bb->preds)
        if (flags & TDF_SLIM)
          {
            pp_string (buffer, " ");
            if (e->src == ENTRY_BLOCK_PTR)
              pp_string (buffer, "ENTRY");
            else
              pp_decimal_int (buffer, e->src->index);
          }
        else
          dump_edge_info (buffer->buffer->stream, e, 0);
      pp_newline (buffer);
    }
  else
    {
      stmt = first_stmt (bb);
      if (!stmt || TREE_CODE (stmt) != LABEL_EXPR)
        {
          INDENT (indent - 2);
          pp_string (buffer, "<bb ");
          pp_decimal_int (buffer, bb->index);
          pp_string (buffer, ">:");
          pp_newline (buffer);
        }
    }
  pp_write_text_to_stream (buffer);
  check_bb_profile (bb, buffer->buffer->stream);
}
 
/* Dumps end of basic block BB to buffer BUFFER indented by INDENT
   spaces.  */
 
static void
dump_bb_end (pretty_printer *buffer, basic_block bb, int indent, int flags)
{
  edge e;
  edge_iterator ei;
 
  INDENT (indent);
  pp_string (buffer, "# SUCC:");
  pp_write_text_to_stream (buffer);
  FOR_EACH_EDGE (e, ei, bb->succs)
    if (flags & TDF_SLIM)
      {
        pp_string (buffer, " ");
        if (e->dest == EXIT_BLOCK_PTR)
          pp_string (buffer, "EXIT");
        else
          pp_decimal_int (buffer, e->dest->index);
      }
    else
      dump_edge_info (buffer->buffer->stream, e, 1);
  pp_newline (buffer);
}
 
/* Dumps phi nodes of basic block BB to buffer BUFFER with details described by
   FLAGS indented by INDENT spaces.  */
 
static void
dump_phi_nodes (pretty_printer *buffer, basic_block bb, int indent, int flags)
{
  tree phi = phi_nodes (bb);
  if (!phi)
    return;
 
  for (; phi; phi = PHI_CHAIN (phi))
    {
      if (is_gimple_reg (PHI_RESULT (phi)) || (flags & TDF_VOPS))
        {
          INDENT (indent);
          pp_string (buffer, "# ");
          dump_generic_node (buffer, phi, indent, flags, false);
          pp_newline (buffer);
        }
    }
}
 
/* Dump jump to basic block BB that is represented implicitly in the cfg
   to BUFFER.  */
 
static void
pp_cfg_jump (pretty_printer *buffer, basic_block bb)
{
  tree stmt;
 
  stmt = first_stmt (bb);
 
  pp_string (buffer, "goto <bb ");
  pp_decimal_int (buffer, bb->index);
  pp_string (buffer, ">");
  if (stmt && TREE_CODE (stmt) == LABEL_EXPR)
    {
      pp_string (buffer, " (");
      dump_generic_node (buffer, LABEL_EXPR_LABEL (stmt), 0, 0, false);
      pp_string (buffer, ")");
    }
  pp_semicolon (buffer);
}
 
/* Dump edges represented implicitly in basic block BB to BUFFER, indented
   by INDENT spaces, with details given by FLAGS.  */
 
static void
dump_implicit_edges (pretty_printer *buffer, basic_block bb, int indent,
                     int flags)
{
  edge e;
  edge_iterator ei;
 
  /* If there is a fallthru edge, we may need to add an artificial goto to the
     dump.  */
  FOR_EACH_EDGE (e, ei, bb->succs)
    if (e->flags & EDGE_FALLTHRU)
      break;
  if (e && e->dest != bb->next_bb)
    {
      INDENT (indent);
 
      if ((flags & TDF_LINENO)
#ifdef USE_MAPPED_LOCATION
          && e->goto_locus != UNKNOWN_LOCATION
#else
          && e->goto_locus
#endif
          )
        {
          expanded_location goto_xloc;
#ifdef USE_MAPPED_LOCATION
          goto_xloc = expand_location (e->goto_locus);
#else
          goto_xloc = *e->goto_locus;
#endif
          pp_character (buffer, '[');
          if (goto_xloc.file)
            {
              pp_string (buffer, goto_xloc.file);
              pp_string (buffer, " : ");
            }
          pp_decimal_int (buffer, goto_xloc.line);
          pp_string (buffer, "] ");
        }
 
      pp_cfg_jump (buffer, e->dest);
      pp_newline (buffer);
    }
}
 
/* Dumps basic block BB to buffer BUFFER with details described by FLAGS and
   indented by INDENT spaces.  */
 
static void
dump_generic_bb_buff (pretty_printer *buffer, basic_block bb,
                      int indent, int flags)
{
  block_stmt_iterator bsi;
  tree stmt;
  int label_indent = indent - 2;
 
  if (label_indent < 0)
    label_indent = 0;
 
  dump_bb_header (buffer, bb, indent, flags);
 
  dump_phi_nodes (buffer, bb, indent, flags);
 
  for (bsi = bsi_start (bb); !bsi_end_p (bsi); bsi_next (&bsi))
    {
      int curr_indent;
 
      stmt = bsi_stmt (bsi);
 
      curr_indent = TREE_CODE (stmt) == LABEL_EXPR ? label_indent : indent;
 
      INDENT (curr_indent);
      dump_generic_node (buffer, stmt, curr_indent, flags, true);
      pp_newline (buffer);
    }
 
  dump_implicit_edges (buffer, bb, indent, flags);
 
  if (flags & TDF_BLOCKS)
    dump_bb_end (buffer, bb, indent, flags);
}
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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [tree-pretty-print.c] - Blame information for rev 856

Line No.	Rev	Author	Line
1	38	julius	`/* Pretty formatting of GENERIC trees in C syntax.`
2			`Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007`
3			`Free Software Foundation, Inc.`
4			`Adapted from c-pretty-print.c by Diego Novillo <dnovillo@redhat.com>`
5
6			`This file is part of GCC.`
7
8			`GCC is free software; you can redistribute it and/or modify it under`
9			`the terms of the GNU General Public License as published by the Free`
10			`Software Foundation; either version 3, or (at your option) any later`
11			`version.`
12
13			`GCC is distributed in the hope that it will be useful, but WITHOUT ANY`
14			`WARRANTY; without even the implied warranty of MERCHANTABILITY or`
15			`FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License`
16			`for more details.`
17
18			`You should have received a copy of the GNU General Public License`
19			`along with GCC; see the file COPYING3. If not see`
20			`<http://www.gnu.org/licenses/>. */`
21
22			`#include "config.h"`
23			`#include "system.h"`
24			`#include "coretypes.h"`
25			`#include "tm.h"`
26			`#include "tree.h"`
27			`#include "diagnostic.h"`
28			`#include "real.h"`
29			`#include "hashtab.h"`
30			`#include "tree-flow.h"`
31			`#include "langhooks.h"`
32			`#include "tree-iterator.h"`
33			`#include "tree-chrec.h"`
34			`#include "tree-pass.h"`
35
36			`/* Local functions, macros and variables. */`
37			`static int op_prio (tree);`
38			`static const char *op_symbol_1 (enum tree_code);`
39			`static const char *op_symbol (tree);`
40			`static void pretty_print_string (pretty_printer , const char);`