ChangeLog/

[official-gcc.git] / gcc / gimple-pretty-print.c

/* Pretty formatting of GIMPLE statements and expressions.
   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
   2011  Free Software Foundation, Inc.
   Contributed by Aldy Hernandez <aldyh@redhat.com> and
   Diego Novillo <dnovillo@google.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 "gimple-pretty-print.h"
#include "hashtab.h"
#include "tree-flow.h"
#include "dumpfile.h"   /* for dump_flags */
#include "gimple.h"
#include "value-prof.h"
#include "trans-mem.h"

#define INDENT(SPACE)                                                   \
  do { int i; for (i = 0; i < SPACE; i++) pp_space (buffer); } while (0)

static pretty_printer buffer;
static bool initialized = false;

#define GIMPLE_NIY do_niy (buffer,gs)

/* Try to print on BUFFER a default message for the unrecognized
   gimple statement GS.  */

static void
do_niy (pretty_printer *buffer, gimple gs)
{
  pp_printf (buffer, "<<< Unknown GIMPLE statement: %s >>>\n",
             gimple_code_name[(int) gimple_code (gs)]);
}


/* Initialize the pretty printer on FILE if needed.  */

static void
maybe_init_pretty_print (FILE *file)
{
  if (!initialized)
    {
      pp_construct (&buffer, NULL, 0);
      pp_needs_newline (&buffer) = true;
      initialized = true;
    }

  buffer.buffer->stream = file;
}


/* Emit a newline and SPC indentation spaces to BUFFER.  */

static void
newline_and_indent (pretty_printer *buffer, int spc)
{
  pp_newline (buffer);
  INDENT (spc);
}


/* Print the GIMPLE statement GS on stderr.  */

DEBUG_FUNCTION void
debug_gimple_stmt (gimple gs)
{
  print_gimple_stmt (stderr, gs, 0, TDF_VOPS|TDF_MEMSYMS);
  fprintf (stderr, "\n");
}


/* Print GIMPLE statement G to FILE using SPC indentation spaces and
   FLAGS as in pp_gimple_stmt_1.  */

void
print_gimple_stmt (FILE *file, gimple g, int spc, int flags)
{
  maybe_init_pretty_print (file);
  pp_gimple_stmt_1 (&buffer, g, spc, flags);
  pp_newline_and_flush (&buffer);
}


/* Print GIMPLE statement G to FILE using SPC indentation spaces and
   FLAGS as in pp_gimple_stmt_1.  Print only the right-hand side
   of the statement.  */

void
print_gimple_expr (FILE *file, gimple g, int spc, int flags)
{
  flags |= TDF_RHS_ONLY;
  maybe_init_pretty_print (file);
  pp_gimple_stmt_1 (&buffer, g, spc, flags);
}


/* Print the GIMPLE sequence SEQ on BUFFER using SPC indentation
   spaces and FLAGS as in pp_gimple_stmt_1.
   The caller is responsible for calling pp_flush on BUFFER to finalize
   the pretty printer.  */

static void
dump_gimple_seq (pretty_printer *buffer, gimple_seq seq, int spc, int flags)
{
  gimple_stmt_iterator i;

  for (i = gsi_start (seq); !gsi_end_p (i); gsi_next (&i))
    {
      gimple gs = gsi_stmt (i);
      INDENT (spc);
      pp_gimple_stmt_1 (buffer, gs, spc, flags);
      if (!gsi_one_before_end_p (i))
        pp_newline (buffer);
    }
}


/* Print GIMPLE sequence SEQ to FILE using SPC indentation spaces and
   FLAGS as in pp_gimple_stmt_1.  */

void
print_gimple_seq (FILE *file, gimple_seq seq, int spc, int flags)
{
  maybe_init_pretty_print (file);
  dump_gimple_seq (&buffer, seq, spc, flags);
  pp_newline_and_flush (&buffer);
}


/* Print the GIMPLE sequence SEQ on stderr.  */

DEBUG_FUNCTION void
debug_gimple_seq (gimple_seq seq)
{
  print_gimple_seq (stderr, seq, 0, TDF_VOPS|TDF_MEMSYMS);
}


/* A simple helper to pretty-print some of the gimple tuples in the printf
   style. The format modifiers are preceded by '%' and are:
     'G' - outputs a string corresponding to the code of the given gimple,
     'S' - outputs a gimple_seq with indent of spc + 2,
     'T' - outputs the tree t,
     'd' - outputs an int as a decimal,
     's' - outputs a string,
     'n' - outputs a newline,
     'x' - outputs an int as hexadecimal,
     '+' - increases indent by 2 then outputs a newline,
     '-' - decreases indent by 2 then outputs a newline.   */

static void
dump_gimple_fmt (pretty_printer *buffer, int spc, int flags,
                 const char *fmt, ...)
{
  va_list args;
  const char *c;
  const char *tmp;

  va_start (args, fmt);
  for (c = fmt; *c; c++)
    {
      if (*c == '%')
        {
          gimple_seq seq;
          tree t;
          gimple g;
          switch (*++c)
            {
              case 'G':
                g = va_arg (args, gimple);
                tmp = gimple_code_name[gimple_code (g)];
                pp_string (buffer, tmp);
                break;

              case 'S':
                seq = va_arg (args, gimple_seq);
                pp_newline (buffer);
                dump_gimple_seq (buffer, seq, spc + 2, flags);
                newline_and_indent (buffer, spc);
                break;

              case 'T':
                t = va_arg (args, tree);
                if (t == NULL_TREE)
                  pp_string (buffer, "NULL");
                else
                  dump_generic_node (buffer, t, spc, flags, false);
                break;

              case 'd':
                pp_decimal_int (buffer, va_arg (args, int));
                break;

              case 's':
                pp_string (buffer, va_arg (args, char *));
                break;

              case 'n':
                newline_and_indent (buffer, spc);
                break;

              case 'x':
                pp_scalar (buffer, "%x", va_arg (args, int));
                break;

              case '+':
                spc += 2;
                newline_and_indent (buffer, spc);
                break;

              case '-':
                spc -= 2;
                newline_and_indent (buffer, spc);
                break;

              default:
                gcc_unreachable ();
            }
        }
      else
        pp_character (buffer, *c);
    }
  va_end (args);
}


/* Helper for dump_gimple_assign.  Print the unary RHS of the
   assignment GS.  BUFFER, SPC and FLAGS are as in pp_gimple_stmt_1.  */

static void
dump_unary_rhs (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  enum tree_code rhs_code = gimple_assign_rhs_code (gs);
  tree lhs = gimple_assign_lhs (gs);
  tree rhs = gimple_assign_rhs1 (gs);

  switch (rhs_code)
    {
    case VIEW_CONVERT_EXPR:
    case ASSERT_EXPR:
      dump_generic_node (buffer, rhs, spc, flags, false);
      break;

    case FIXED_CONVERT_EXPR:
    case ADDR_SPACE_CONVERT_EXPR:
    case FIX_TRUNC_EXPR:
    case FLOAT_EXPR:
    CASE_CONVERT:
      pp_character (buffer, '(');
      dump_generic_node (buffer, TREE_TYPE (lhs), spc, flags, false);
      pp_string (buffer, ") ");
      if (op_prio (rhs) < op_code_prio (rhs_code))
        {
          pp_character (buffer, '(');
          dump_generic_node (buffer, rhs, spc, flags, false);
          pp_character (buffer, ')');
        }
      else
        dump_generic_node (buffer, rhs, spc, flags, false);
      break;

    case PAREN_EXPR:
      pp_string (buffer, "((");
      dump_generic_node (buffer, rhs, spc, flags, false);
      pp_string (buffer, "))");
      break;

    case ABS_EXPR:
      pp_string (buffer, "ABS_EXPR <");
      dump_generic_node (buffer, rhs, spc, flags, false);
      pp_character (buffer, '>');
      break;

    default:
      if (TREE_CODE_CLASS (rhs_code) == tcc_declaration
          || TREE_CODE_CLASS (rhs_code) == tcc_constant
          || TREE_CODE_CLASS (rhs_code) == tcc_reference
          || rhs_code == SSA_NAME
          || rhs_code == ADDR_EXPR
          || rhs_code == CONSTRUCTOR)
        {
          dump_generic_node (buffer, rhs, spc, flags, false);
          break;
        }
      else if (rhs_code == BIT_NOT_EXPR)
        pp_character (buffer, '~');
      else if (rhs_code == TRUTH_NOT_EXPR)
        pp_character (buffer, '!');
      else if (rhs_code == NEGATE_EXPR)
        pp_character (buffer, '-');
      else
        {
          pp_character (buffer, '[');
          pp_string (buffer, tree_code_name [rhs_code]);
          pp_string (buffer, "] ");
        }

      if (op_prio (rhs) < op_code_prio (rhs_code))
        {
          pp_character (buffer, '(');
          dump_generic_node (buffer, rhs, spc, flags, false);
          pp_character (buffer, ')');
        }
      else
        dump_generic_node (buffer, rhs, spc, flags, false);
      break;
    }
}


/* Helper for dump_gimple_assign.  Print the binary RHS of the
   assignment GS.  BUFFER, SPC and FLAGS are as in pp_gimple_stmt_1.  */

static void
dump_binary_rhs (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  const char *p;
  enum tree_code code = gimple_assign_rhs_code (gs);
  switch (code)
    {
    case COMPLEX_EXPR:
    case MIN_EXPR:
    case MAX_EXPR:
    case VEC_WIDEN_MULT_HI_EXPR:
    case VEC_WIDEN_MULT_LO_EXPR:
    case VEC_WIDEN_MULT_EVEN_EXPR:
    case VEC_WIDEN_MULT_ODD_EXPR:
    case VEC_PACK_TRUNC_EXPR:
    case VEC_PACK_SAT_EXPR:
    case VEC_PACK_FIX_TRUNC_EXPR:
    case VEC_WIDEN_LSHIFT_HI_EXPR:
    case VEC_WIDEN_LSHIFT_LO_EXPR:
      for (p = tree_code_name [(int) code]; *p; p++)
        pp_character (buffer, TOUPPER (*p));
      pp_string (buffer, " <");
      dump_generic_node (buffer, gimple_assign_rhs1 (gs), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, gimple_assign_rhs2 (gs), spc, flags, false);
      pp_character (buffer, '>');
      break;

    default:
      if (op_prio (gimple_assign_rhs1 (gs)) <= op_code_prio (code))
        {
          pp_character (buffer, '(');
          dump_generic_node (buffer, gimple_assign_rhs1 (gs), spc, flags,
                             false);
          pp_character (buffer, ')');
        }
      else
        dump_generic_node (buffer, gimple_assign_rhs1 (gs), spc, flags, false);
      pp_space (buffer);
      pp_string (buffer, op_symbol_code (gimple_assign_rhs_code (gs)));
      pp_space (buffer);
      if (op_prio (gimple_assign_rhs2 (gs)) <= op_code_prio (code))
        {
          pp_character (buffer, '(');
          dump_generic_node (buffer, gimple_assign_rhs2 (gs), spc, flags,
                             false);
          pp_character (buffer, ')');
        }
      else
        dump_generic_node (buffer, gimple_assign_rhs2 (gs), spc, flags, false);
    }
}

/* Helper for dump_gimple_assign.  Print the ternary RHS of the
   assignment GS.  BUFFER, SPC and FLAGS are as in pp_gimple_stmt_1.  */

static void
dump_ternary_rhs (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  const char *p;
  enum tree_code code = gimple_assign_rhs_code (gs);
  switch (code)
    {
    case WIDEN_MULT_PLUS_EXPR:
    case WIDEN_MULT_MINUS_EXPR:
      for (p = tree_code_name [(int) code]; *p; p++)
        pp_character (buffer, TOUPPER (*p));
      pp_string (buffer, " <");
      dump_generic_node (buffer, gimple_assign_rhs1 (gs), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, gimple_assign_rhs2 (gs), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, gimple_assign_rhs3 (gs), spc, flags, false);
      pp_character (buffer, '>');
      break;

    case FMA_EXPR:
      dump_generic_node (buffer, gimple_assign_rhs1 (gs), spc, flags, false);
      pp_string (buffer, " * ");
      dump_generic_node (buffer, gimple_assign_rhs2 (gs), spc, flags, false);
      pp_string (buffer, " + ");
      dump_generic_node (buffer, gimple_assign_rhs3 (gs), spc, flags, false);
      break;

    case DOT_PROD_EXPR:
      pp_string (buffer, "DOT_PROD_EXPR <");
      dump_generic_node (buffer, gimple_assign_rhs1 (gs), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, gimple_assign_rhs2 (gs), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, gimple_assign_rhs3 (gs), spc, flags, false);
      pp_string (buffer, ">");
      break;
    
    case VEC_PERM_EXPR:
      pp_string (buffer, "VEC_PERM_EXPR <");
      dump_generic_node (buffer, gimple_assign_rhs1 (gs), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, gimple_assign_rhs2 (gs), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, gimple_assign_rhs3 (gs), spc, flags, false);
      pp_string (buffer, ">");
      break;

    case REALIGN_LOAD_EXPR:
      pp_string (buffer, "REALIGN_LOAD <");
      dump_generic_node (buffer, gimple_assign_rhs1 (gs), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, gimple_assign_rhs2 (gs), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, gimple_assign_rhs3 (gs), spc, flags, false);
      pp_string (buffer, ">");
      break;

    case COND_EXPR:
      dump_generic_node (buffer, gimple_assign_rhs1 (gs), spc, flags, false);
      pp_string (buffer, " ? ");
      dump_generic_node (buffer, gimple_assign_rhs2 (gs), spc, flags, false);
      pp_string (buffer, " : ");
      dump_generic_node (buffer, gimple_assign_rhs3 (gs), spc, flags, false);
      break;

    case VEC_COND_EXPR:
      pp_string (buffer, "VEC_COND_EXPR <");
      dump_generic_node (buffer, gimple_assign_rhs1 (gs), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, gimple_assign_rhs2 (gs), spc, flags, false);
      pp_string (buffer, ", ");
      dump_generic_node (buffer, gimple_assign_rhs3 (gs), spc, flags, false);
      pp_string (buffer, ">");
      break;

    default:
      gcc_unreachable ();
    }
}


/* Dump the gimple assignment GS.  BUFFER, SPC and FLAGS are as in
   pp_gimple_stmt_1.  */

static void
dump_gimple_assign (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
    {
      tree arg1 = NULL;
      tree arg2 = NULL;
      tree arg3 = NULL;
      switch (gimple_num_ops (gs))
        {
        case 4:
          arg3 = gimple_assign_rhs3 (gs);
        case 3:
          arg2 = gimple_assign_rhs2 (gs);
        case 2:
          arg1 = gimple_assign_rhs1 (gs);
          break;
        default:
          gcc_unreachable ();
        }

      dump_gimple_fmt (buffer, spc, flags, "%G <%s, %T, %T, %T, %T>", gs,
                       tree_code_name[gimple_assign_rhs_code (gs)],
                       gimple_assign_lhs (gs), arg1, arg2, arg3);
    }
  else
    {
      if (!(flags & TDF_RHS_ONLY))
        {
          dump_generic_node (buffer, gimple_assign_lhs (gs), spc, flags, false);
          pp_space (buffer);
          pp_character (buffer, '=');

          if (gimple_assign_nontemporal_move_p (gs))
            pp_string (buffer, "{nt}");

          if (gimple_has_volatile_ops (gs))
            pp_string (buffer, "{v}");

          pp_space (buffer);
        }

      if (gimple_num_ops (gs) == 2)
        dump_unary_rhs (buffer, gs, spc, flags);
      else if (gimple_num_ops (gs) == 3)
        dump_binary_rhs (buffer, gs, spc, flags);
      else if (gimple_num_ops (gs) == 4)
        dump_ternary_rhs (buffer, gs, spc, flags);
      else
        gcc_unreachable ();
      if (!(flags & TDF_RHS_ONLY))
        pp_semicolon(buffer);
    }
}


/* Dump the return statement GS.  BUFFER, SPC and FLAGS are as in
   pp_gimple_stmt_1.  */

static void
dump_gimple_return (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  tree t;

  t = gimple_return_retval (gs);
  if (flags & TDF_RAW)
    dump_gimple_fmt (buffer, spc, flags, "%G <%T>", gs, t);
  else
    {
      pp_string (buffer, "return");
      if (t)
        {
          pp_space (buffer);
          dump_generic_node (buffer, t, spc, flags, false);
        }
      pp_semicolon (buffer);
    }
}


/* Dump the call arguments for a gimple call. BUFFER, FLAGS are as in
   dump_gimple_call.  */

static void
dump_gimple_call_args (pretty_printer *buffer, gimple gs, int flags)
{
  size_t i;

  for (i = 0; i < gimple_call_num_args (gs); i++)
    {
      dump_generic_node (buffer, gimple_call_arg (gs, i), 0, flags, false);
      if (i < gimple_call_num_args (gs) - 1)
        pp_string (buffer, ", ");
    }

  if (gimple_call_va_arg_pack_p (gs))
    {
      if (gimple_call_num_args (gs) > 0)
        {
          pp_character (buffer, ',');
          pp_space (buffer);
        }

      pp_string (buffer, "__builtin_va_arg_pack ()");
    }
}

/* Dump the points-to solution *PT to BUFFER.  */

static void
pp_points_to_solution (pretty_printer *buffer, struct pt_solution *pt)
{
  if (pt->anything)
    {
      pp_string (buffer, "anything ");
      return;
    }
  if (pt->nonlocal)
    pp_string (buffer, "nonlocal ");
  if (pt->escaped)
    pp_string (buffer, "escaped ");
  if (pt->ipa_escaped)
    pp_string (buffer, "unit-escaped ");
  if (pt->null)
    pp_string (buffer, "null ");
  if (pt->vars
      && !bitmap_empty_p (pt->vars))
    {
      bitmap_iterator bi;
      unsigned i;
      pp_string (buffer, "{ ");
      EXECUTE_IF_SET_IN_BITMAP (pt->vars, 0, i, bi)
        {
          pp_string (buffer, "D.");
          pp_decimal_int (buffer, i);
          pp_character (buffer, ' ');
        }
      pp_character (buffer, '}');
      if (pt->vars_contains_global)
        pp_string (buffer, " (glob)");
    }
}

/* Dump the call statement GS.  BUFFER, SPC and FLAGS are as in
   pp_gimple_stmt_1.  */

static void
dump_gimple_call (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  tree lhs = gimple_call_lhs (gs);
  tree fn = gimple_call_fn (gs);

  if (flags & TDF_ALIAS)
    {
      struct pt_solution *pt;
      pt = gimple_call_use_set (gs);
      if (!pt_solution_empty_p (pt))
        {
          pp_string (buffer, "# USE = ");
          pp_points_to_solution (buffer, pt);
          newline_and_indent (buffer, spc);
        }
      pt = gimple_call_clobber_set (gs);
      if (!pt_solution_empty_p (pt))
        {
          pp_string (buffer, "# CLB = ");
          pp_points_to_solution (buffer, pt);
          newline_and_indent (buffer, spc);
        }
    }

  if (flags & TDF_RAW)
    {
      if (gimple_call_internal_p (gs))
        dump_gimple_fmt (buffer, spc, flags, "%G <%s, %T", gs,
                         internal_fn_name (gimple_call_internal_fn (gs)), lhs);
      else
        dump_gimple_fmt (buffer, spc, flags, "%G <%T, %T", gs, fn, lhs);
      if (gimple_call_num_args (gs) > 0)
        {
          pp_string (buffer, ", ");
          dump_gimple_call_args (buffer, gs, flags);
        }
      pp_character (buffer, '>');
    }
  else
    {
      if (lhs && !(flags & TDF_RHS_ONLY))
        {
          dump_generic_node (buffer, lhs, spc, flags, false);
          pp_string (buffer, " =");

          if (gimple_has_volatile_ops (gs))
            pp_string (buffer, "{v}");

          pp_space (buffer);
        }
      if (gimple_call_internal_p (gs))
        pp_string (buffer, internal_fn_name (gimple_call_internal_fn (gs)));
      else
        print_call_name (buffer, fn, flags);
      pp_string (buffer, " (");
      dump_gimple_call_args (buffer, gs, flags);
      pp_character (buffer, ')');
      if (!(flags & TDF_RHS_ONLY))
        pp_semicolon (buffer);
    }

  if (gimple_call_chain (gs))
    {
      pp_string (buffer, " [static-chain: ");
      dump_generic_node (buffer, gimple_call_chain (gs), spc, flags, false);
      pp_character (buffer, ']');
    }

  if (gimple_call_return_slot_opt_p (gs))
    pp_string (buffer, " [return slot optimization]");
  if (gimple_call_tail_p (gs))
    pp_string (buffer, " [tail call]");

  if (fn == NULL)
    return;

  /* Dump the arguments of _ITM_beginTransaction sanely.  */
  if (TREE_CODE (fn) == ADDR_EXPR)
    fn = TREE_OPERAND (fn, 0);
  if (TREE_CODE (fn) == FUNCTION_DECL && decl_is_tm_clone (fn))
    pp_string (buffer, " [tm-clone]");
  if (TREE_CODE (fn) == FUNCTION_DECL
      && DECL_BUILT_IN_CLASS (fn) == BUILT_IN_NORMAL
      && DECL_FUNCTION_CODE (fn) == BUILT_IN_TM_START
      && gimple_call_num_args (gs) > 0)
    {
      tree t = gimple_call_arg (gs, 0);
      unsigned HOST_WIDE_INT props;
      gcc_assert (TREE_CODE (t) == INTEGER_CST);

      pp_string (buffer, " [ ");

      /* Get the transaction code properties.  */
      props = TREE_INT_CST_LOW (t);

      if (props & PR_INSTRUMENTEDCODE)
        pp_string (buffer, "instrumentedCode ");
      if (props & PR_UNINSTRUMENTEDCODE)
        pp_string (buffer, "uninstrumentedCode ");
      if (props & PR_HASNOXMMUPDATE)
        pp_string (buffer, "hasNoXMMUpdate ");
      if (props & PR_HASNOABORT)
        pp_string (buffer, "hasNoAbort ");
      if (props & PR_HASNOIRREVOCABLE)
        pp_string (buffer, "hasNoIrrevocable ");
      if (props & PR_DOESGOIRREVOCABLE)
        pp_string (buffer, "doesGoIrrevocable ");
      if (props & PR_HASNOSIMPLEREADS)
        pp_string (buffer, "hasNoSimpleReads ");
      if (props & PR_AWBARRIERSOMITTED)
        pp_string (buffer, "awBarriersOmitted ");
      if (props & PR_RARBARRIERSOMITTED)
        pp_string (buffer, "RaRBarriersOmitted ");
      if (props & PR_UNDOLOGCODE)
        pp_string (buffer, "undoLogCode ");
      if (props & PR_PREFERUNINSTRUMENTED)
        pp_string (buffer, "preferUninstrumented ");
      if (props & PR_EXCEPTIONBLOCK)
        pp_string (buffer, "exceptionBlock ");
      if (props & PR_HASELSE)
        pp_string (buffer, "hasElse ");
      if (props & PR_READONLY)
        pp_string (buffer, "readOnly ");

      pp_string (buffer, "]");
    }
}


/* Dump the switch statement GS.  BUFFER, SPC and FLAGS are as in
   pp_gimple_stmt_1.  */

static void
dump_gimple_switch (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  unsigned int i;

  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
  if (flags & TDF_RAW)
    dump_gimple_fmt (buffer, spc, flags, "%G <%T, ", gs,
                   gimple_switch_index (gs));
  else
    {
      pp_string (buffer, "switch (");
      dump_generic_node (buffer, gimple_switch_index (gs), spc, flags, true);
      pp_string (buffer, ") <");
    }

  for (i = 0; i < gimple_switch_num_labels (gs); i++)
    {
      tree case_label = gimple_switch_label (gs, i);
      gcc_checking_assert (case_label != NULL_TREE);
      dump_generic_node (buffer, case_label, spc, flags, false);
      pp_character (buffer, ' ');
      dump_generic_node (buffer, CASE_LABEL (case_label), spc, flags, false);
      if (i < gimple_switch_num_labels (gs) - 1)
        pp_string (buffer, ", ");
    }
  pp_character (buffer, '>');
}


/* Dump the gimple conditional GS.  BUFFER, SPC and FLAGS are as in
   pp_gimple_stmt_1.  */

static void
dump_gimple_cond (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
    dump_gimple_fmt (buffer, spc, flags, "%G <%s, %T, %T, %T, %T>", gs,
                   tree_code_name [gimple_cond_code (gs)],
                   gimple_cond_lhs (gs), gimple_cond_rhs (gs),
                   gimple_cond_true_label (gs), gimple_cond_false_label (gs));
  else
    {
      if (!(flags & TDF_RHS_ONLY))
        pp_string (buffer, "if (");
      dump_generic_node (buffer, gimple_cond_lhs (gs), spc, flags, false);
      pp_space (buffer);
      pp_string (buffer, op_symbol_code (gimple_cond_code (gs)));
      pp_space (buffer);
      dump_generic_node (buffer, gimple_cond_rhs (gs), spc, flags, false);
      if (!(flags & TDF_RHS_ONLY))
        {
          pp_character (buffer, ')');

          if (gimple_cond_true_label (gs))
            {
              pp_string (buffer, " goto ");
              dump_generic_node (buffer, gimple_cond_true_label (gs),
                                 spc, flags, false);
              pp_semicolon (buffer);
            }
          if (gimple_cond_false_label (gs))
            {
              pp_string (buffer, " else goto ");
              dump_generic_node (buffer, gimple_cond_false_label (gs),
                                 spc, flags, false);
              pp_semicolon (buffer);
            }
        }
    }
}


/* Dump a GIMPLE_LABEL tuple on the pretty_printer BUFFER, SPC
   spaces of indent.  FLAGS specifies details to show in the dump (see
   TDF_* in dumpfils.h).  */

static void
dump_gimple_label (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  tree label = gimple_label_label (gs);
  if (flags & TDF_RAW)
      dump_gimple_fmt (buffer, spc, flags, "%G <%T>", gs, label);
  else
    {
      dump_generic_node (buffer, label, spc, flags, false);
      pp_character (buffer, ':');
    }
  if (DECL_NONLOCAL (label))
    pp_string (buffer, " [non-local]");
  if ((flags & TDF_EH) && EH_LANDING_PAD_NR (label))
    pp_printf (buffer, " [LP %d]", EH_LANDING_PAD_NR (label));
}

/* Dump a GIMPLE_GOTO tuple on the pretty_printer BUFFER, SPC
   spaces of indent.  FLAGS specifies details to show in the dump (see
   TDF_* in dumpfile.h).  */

static void
dump_gimple_goto (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  tree label = gimple_goto_dest (gs);
  if (flags & TDF_RAW)
    dump_gimple_fmt (buffer, spc, flags, "%G <%T>", gs, label);
  else
    dump_gimple_fmt (buffer, spc, flags, "goto %T;", label);
}


/* Dump a GIMPLE_BIND tuple on the pretty_printer BUFFER, SPC
   spaces of indent.  FLAGS specifies details to show in the dump (see
   TDF_* in dumpfile.h).  */

static void
dump_gimple_bind (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
    dump_gimple_fmt (buffer, spc, flags, "%G <", gs);
  else
    pp_character (buffer, '{');
  if (!(flags & TDF_SLIM))
    {
      tree var;

      for (var = gimple_bind_vars (gs); var; var = DECL_CHAIN (var))
        {
          newline_and_indent (buffer, 2);
          print_declaration (buffer, var, spc, flags);
        }
      if (gimple_bind_vars (gs))
        pp_newline (buffer);
    }
  pp_newline (buffer);
  dump_gimple_seq (buffer, gimple_bind_body (gs), spc + 2, flags);
  newline_and_indent (buffer, spc);
  if (flags & TDF_RAW)
    pp_character (buffer, '>');
  else
    pp_character (buffer, '}');
}


/* Dump a GIMPLE_TRY tuple on the pretty_printer BUFFER, SPC spaces of
   indent.  FLAGS specifies details to show in the dump (see TDF_* in
   dumpfile.h).  */

static void
dump_gimple_try (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
    {
      const char *type;
      if (gimple_try_kind (gs) == GIMPLE_TRY_CATCH)
        type = "GIMPLE_TRY_CATCH";
      else if (gimple_try_kind (gs) == GIMPLE_TRY_FINALLY)
        type = "GIMPLE_TRY_FINALLY";
      else
        type = "UNKNOWN GIMPLE_TRY";
      dump_gimple_fmt (buffer, spc, flags,
                       "%G <%s,%+EVAL <%S>%nCLEANUP <%S>%->", gs, type,
                       gimple_try_eval (gs), gimple_try_cleanup (gs));
    }
  else
    {
      pp_string (buffer, "try");
      newline_and_indent (buffer, spc + 2);
      pp_character (buffer, '{');
      pp_newline (buffer);

      dump_gimple_seq (buffer, gimple_try_eval (gs), spc + 4, flags);
      newline_and_indent (buffer, spc + 2);
      pp_character (buffer, '}');

      if (gimple_try_kind (gs) == GIMPLE_TRY_CATCH)
        {
          newline_and_indent (buffer, spc);
          pp_string (buffer, "catch");
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '{');
        }
      else if (gimple_try_kind (gs) == GIMPLE_TRY_FINALLY)
        {
          newline_and_indent (buffer, spc);
          pp_string (buffer, "finally");
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '{');
        }
      else
        pp_string (buffer, " <UNKNOWN GIMPLE_TRY> {");

      pp_newline (buffer);
      dump_gimple_seq (buffer, gimple_try_cleanup (gs), spc + 4, flags);
      newline_and_indent (buffer, spc + 2);
      pp_character (buffer, '}');
    }
}


/* Dump a GIMPLE_CATCH tuple on the pretty_printer BUFFER, SPC spaces of
   indent.  FLAGS specifies details to show in the dump (see TDF_* in
   dumpfile.h).  */

static void
dump_gimple_catch (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
      dump_gimple_fmt (buffer, spc, flags, "%G <%T, %+CATCH <%S>%->", gs,
                       gimple_catch_types (gs), gimple_catch_handler (gs));
  else
      dump_gimple_fmt (buffer, spc, flags, "catch (%T)%+{%S}",
                       gimple_catch_types (gs), gimple_catch_handler (gs));
}


/* Dump a GIMPLE_EH_FILTER tuple on the pretty_printer BUFFER, SPC spaces of
   indent.  FLAGS specifies details to show in the dump (see TDF_* in
   dumpfile.h).  */

static void
dump_gimple_eh_filter (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
    dump_gimple_fmt (buffer, spc, flags, "%G <%T, %+FAILURE <%S>%->", gs,
                     gimple_eh_filter_types (gs),
                     gimple_eh_filter_failure (gs));
  else
    dump_gimple_fmt (buffer, spc, flags, "<<<eh_filter (%T)>>>%+{%+%S%-}",
                     gimple_eh_filter_types (gs),
                     gimple_eh_filter_failure (gs));
}


/* Dump a GIMPLE_EH_MUST_NOT_THROW tuple.  */

static void
dump_gimple_eh_must_not_throw (pretty_printer *buffer, gimple gs,
                               int spc, int flags)
{
  if (flags & TDF_RAW)
    dump_gimple_fmt (buffer, spc, flags, "%G <%T>", gs,
                     gimple_eh_must_not_throw_fndecl (gs));
  else
    dump_gimple_fmt (buffer, spc, flags, "<<<eh_must_not_throw (%T)>>>",
                     gimple_eh_must_not_throw_fndecl (gs));
}


/* Dump a GIMPLE_EH_ELSE tuple on the pretty_printer BUFFER, SPC spaces of
   indent.  FLAGS specifies details to show in the dump (see TDF_* in
   dumpfile.h).  */

static void
dump_gimple_eh_else (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
    dump_gimple_fmt (buffer, spc, flags,
                     "%G <%+N_BODY <%S>%nE_BODY <%S>%->", gs,
                     gimple_eh_else_n_body (gs), gimple_eh_else_e_body (gs));
  else
    dump_gimple_fmt (buffer, spc, flags,
                    "<<<if_normal_exit>>>%+{%S}%-<<<else_eh_exit>>>%+{%S}",
                     gimple_eh_else_n_body (gs), gimple_eh_else_e_body (gs));
}


/* Dump a GIMPLE_RESX tuple on the pretty_printer BUFFER, SPC spaces of
   indent.  FLAGS specifies details to show in the dump (see TDF_* in
   dumpfile.h).  */

static void
dump_gimple_resx (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
    dump_gimple_fmt (buffer, spc, flags, "%G <%d>", gs,
                     gimple_resx_region (gs));
  else
    dump_gimple_fmt (buffer, spc, flags, "resx %d", gimple_resx_region (gs));
}

/* Dump a GIMPLE_EH_DISPATCH tuple on the pretty_printer BUFFER.  */

static void
dump_gimple_eh_dispatch (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
    dump_gimple_fmt (buffer, spc, flags, "%G <%d>", gs,
                     gimple_eh_dispatch_region (gs));
  else
    dump_gimple_fmt (buffer, spc, flags, "eh_dispatch %d",
                     gimple_eh_dispatch_region (gs));
}

/* Dump a GIMPLE_DEBUG tuple on the pretty_printer BUFFER, SPC spaces
   of indent.  FLAGS specifies details to show in the dump (see TDF_*
   in dumpfile.h).  */

static void
dump_gimple_debug (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  switch (gs->gsbase.subcode)
    {
    case GIMPLE_DEBUG_BIND:
      if (flags & TDF_RAW)
        dump_gimple_fmt (buffer, spc, flags, "%G BIND <%T, %T>", gs,
                         gimple_debug_bind_get_var (gs),
                         gimple_debug_bind_get_value (gs));
      else
        dump_gimple_fmt (buffer, spc, flags, "# DEBUG %T => %T",
                         gimple_debug_bind_get_var (gs),
                         gimple_debug_bind_get_value (gs));
      break;

    case GIMPLE_DEBUG_SOURCE_BIND:
      if (flags & TDF_RAW)
        dump_gimple_fmt (buffer, spc, flags, "%G SRCBIND <%T, %T>", gs,
                         gimple_debug_source_bind_get_var (gs),
                         gimple_debug_source_bind_get_value (gs));
      else
        dump_gimple_fmt (buffer, spc, flags, "# DEBUG %T s=> %T",
                         gimple_debug_source_bind_get_var (gs),
                         gimple_debug_source_bind_get_value (gs));
      break;

    default:
      gcc_unreachable ();
    }
}

/* Dump a GIMPLE_OMP_FOR tuple on the pretty_printer BUFFER.  */
static void
dump_gimple_omp_for (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  size_t i;

  if (flags & TDF_RAW)
    {
      dump_gimple_fmt (buffer, spc, flags, "%G <%+BODY <%S>%nCLAUSES <", gs,
                       gimple_omp_body (gs));
      dump_omp_clauses (buffer, gimple_omp_for_clauses (gs), spc, flags);
      dump_gimple_fmt (buffer, spc, flags, " >,");
      for (i = 0; i < gimple_omp_for_collapse (gs); i++)
        dump_gimple_fmt (buffer, spc, flags,
                         "%+%T, %T, %T, %s, %T,%n",
                         gimple_omp_for_index (gs, i),
                         gimple_omp_for_initial (gs, i),
                         gimple_omp_for_final (gs, i),
                         tree_code_name[gimple_omp_for_cond (gs, i)],
                         gimple_omp_for_incr (gs, i));
      dump_gimple_fmt (buffer, spc, flags, "PRE_BODY <%S>%->",
                       gimple_omp_for_pre_body (gs));
    }
  else
    {
      pp_string (buffer, "#pragma omp for");
      dump_omp_clauses (buffer, gimple_omp_for_clauses (gs), spc, flags);
      for (i = 0; i < gimple_omp_for_collapse (gs); i++)
        {
          if (i)
            spc += 2;
          newline_and_indent (buffer, spc);
          pp_string (buffer, "for (");
          dump_generic_node (buffer, gimple_omp_for_index (gs, i), spc,
                             flags, false);
          pp_string (buffer, " = ");
          dump_generic_node (buffer, gimple_omp_for_initial (gs, i), spc,
                             flags, false);
          pp_string (buffer, "; ");

          dump_generic_node (buffer, gimple_omp_for_index (gs, i), spc,
                             flags, false);
          pp_space (buffer);
          switch (gimple_omp_for_cond (gs, i))
            {
            case LT_EXPR:
              pp_character (buffer, '<');
              break;
            case GT_EXPR:
              pp_character (buffer, '>');
              break;
            case LE_EXPR:
              pp_string (buffer, "<=");
              break;
            case GE_EXPR:
              pp_string (buffer, ">=");
              break;
            default:
              gcc_unreachable ();
            }
          pp_space (buffer);
          dump_generic_node (buffer, gimple_omp_for_final (gs, i), spc,
                             flags, false);
          pp_string (buffer, "; ");

          dump_generic_node (buffer, gimple_omp_for_index (gs, i), spc,
                             flags, false);
          pp_string (buffer, " = ");
          dump_generic_node (buffer, gimple_omp_for_incr (gs, i), spc,
                             flags, false);
          pp_character (buffer, ')');
        }

      if (!gimple_seq_empty_p (gimple_omp_body (gs)))
        {
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '{');
          pp_newline (buffer);
          dump_gimple_seq (buffer, gimple_omp_body (gs), spc + 4, flags);
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '}');
        }
    }
}

/* Dump a GIMPLE_OMP_CONTINUE tuple on the pretty_printer BUFFER.  */

static void
dump_gimple_omp_continue (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
    {
      dump_gimple_fmt (buffer, spc, flags, "%G <%T, %T>", gs,
                       gimple_omp_continue_control_def (gs),
                       gimple_omp_continue_control_use (gs));
    }
  else
    {
      pp_string (buffer, "#pragma omp continue (");
      dump_generic_node (buffer, gimple_omp_continue_control_def (gs),
                         spc, flags, false);
      pp_character (buffer, ',');
      pp_space (buffer);
      dump_generic_node (buffer, gimple_omp_continue_control_use (gs),
                         spc, flags, false);
      pp_character (buffer, ')');
    }
}

/* Dump a GIMPLE_OMP_SINGLE tuple on the pretty_printer BUFFER.  */

static void
dump_gimple_omp_single (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
    {
      dump_gimple_fmt (buffer, spc, flags, "%G <%+BODY <%S>%nCLAUSES <", gs,
                       gimple_omp_body (gs));
      dump_omp_clauses (buffer, gimple_omp_single_clauses (gs), spc, flags);
      dump_gimple_fmt (buffer, spc, flags, " >");
    }
  else
    {
      pp_string (buffer, "#pragma omp single");
      dump_omp_clauses (buffer, gimple_omp_single_clauses (gs), spc, flags);
      if (!gimple_seq_empty_p (gimple_omp_body (gs)))
        {
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '{');
          pp_newline (buffer);
          dump_gimple_seq (buffer, gimple_omp_body (gs), spc + 4, flags);
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '}');
        }
    }
}

/* Dump a GIMPLE_OMP_SECTIONS tuple on the pretty_printer BUFFER.  */

static void
dump_gimple_omp_sections (pretty_printer *buffer, gimple gs, int spc,
                          int flags)
{
  if (flags & TDF_RAW)
    {
      dump_gimple_fmt (buffer, spc, flags, "%G <%+BODY <%S>%nCLAUSES <", gs,
                       gimple_omp_body (gs));
      dump_omp_clauses (buffer, gimple_omp_sections_clauses (gs), spc, flags);
      dump_gimple_fmt (buffer, spc, flags, " >");
    }
  else
    {
      pp_string (buffer, "#pragma omp sections");
      if (gimple_omp_sections_control (gs))
        {
          pp_string (buffer, " <");
          dump_generic_node (buffer, gimple_omp_sections_control (gs), spc,
                             flags, false);
          pp_character (buffer, '>');
        }
      dump_omp_clauses (buffer, gimple_omp_sections_clauses (gs), spc, flags);
      if (!gimple_seq_empty_p (gimple_omp_body (gs)))
        {
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '{');
          pp_newline (buffer);
          dump_gimple_seq (buffer, gimple_omp_body (gs), spc + 4, flags);
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '}');
        }
    }
}

/* Dump a GIMPLE_OMP_{MASTER,ORDERED,SECTION} tuple on the pretty_printer
   BUFFER.  */

static void
dump_gimple_omp_block (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
    dump_gimple_fmt (buffer, spc, flags, "%G <%+BODY <%S> >", gs,
                     gimple_omp_body (gs));
  else
    {
      switch (gimple_code (gs))
        {
        case GIMPLE_OMP_MASTER:
          pp_string (buffer, "#pragma omp master");
          break;
        case GIMPLE_OMP_ORDERED:
          pp_string (buffer, "#pragma omp ordered");
          break;
        case GIMPLE_OMP_SECTION:
          pp_string (buffer, "#pragma omp section");
          break;
        default:
          gcc_unreachable ();
        }
      if (!gimple_seq_empty_p (gimple_omp_body (gs)))
        {
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '{');
          pp_newline (buffer);
          dump_gimple_seq (buffer, gimple_omp_body (gs), spc + 4, flags);
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '}');
        }
    }
}

/* Dump a GIMPLE_OMP_CRITICAL tuple on the pretty_printer BUFFER.  */

static void
dump_gimple_omp_critical (pretty_printer *buffer, gimple gs, int spc,
                          int flags)
{
  if (flags & TDF_RAW)
    dump_gimple_fmt (buffer, spc, flags, "%G <%+BODY <%S> >", gs,
                     gimple_omp_body (gs));
  else
    {
      pp_string (buffer, "#pragma omp critical");
      if (gimple_omp_critical_name (gs))
        {
          pp_string (buffer, " (");
          dump_generic_node (buffer, gimple_omp_critical_name (gs), spc,
                             flags, false);
          pp_character (buffer, ')');
        }
      if (!gimple_seq_empty_p (gimple_omp_body (gs)))
        {
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '{');
          pp_newline (buffer);
          dump_gimple_seq (buffer, gimple_omp_body (gs), spc + 4, flags);
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '}');
        }
    }
}

/* Dump a GIMPLE_OMP_RETURN tuple on the pretty_printer BUFFER.  */

static void
dump_gimple_omp_return (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (flags & TDF_RAW)
    {
      dump_gimple_fmt (buffer, spc, flags, "%G <nowait=%d>", gs,
                       (int) gimple_omp_return_nowait_p (gs));
    }
  else
    {
      pp_string (buffer, "#pragma omp return");
      if (gimple_omp_return_nowait_p (gs))
        pp_string (buffer, "(nowait)");
    }
}

/* Dump a GIMPLE_TRANSACTION tuple on the pretty_printer BUFFER.  */

static void
dump_gimple_transaction (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  unsigned subcode = gimple_transaction_subcode (gs);

  if (flags & TDF_RAW)
    {
      dump_gimple_fmt (buffer, spc, flags,
                       "%G [SUBCODE=%x,LABEL=%T] <%+BODY <%S> >",
                       gs, subcode, gimple_transaction_label (gs),
                       gimple_transaction_body (gs));
    }
  else
    {
      if (subcode & GTMA_IS_OUTER)
        pp_string (buffer, "__transaction_atomic [[outer]]");
      else if (subcode & GTMA_IS_RELAXED)
        pp_string (buffer, "__transaction_relaxed");
      else
        pp_string (buffer, "__transaction_atomic");
      subcode &= ~GTMA_DECLARATION_MASK;

      if (subcode || gimple_transaction_label (gs))
        {
          pp_string (buffer, "  //");
          if (gimple_transaction_label (gs))
            {
              pp_string (buffer, " LABEL=");
              dump_generic_node (buffer, gimple_transaction_label (gs),
                                 spc, flags, false);
            }
          if (subcode)
            {
              pp_string (buffer, " SUBCODE=[ ");
              if (subcode & GTMA_HAVE_ABORT)
                {
                  pp_string (buffer, "GTMA_HAVE_ABORT ");
                  subcode &= ~GTMA_HAVE_ABORT;
                }
              if (subcode & GTMA_HAVE_LOAD)
                {
                  pp_string (buffer, "GTMA_HAVE_LOAD ");
                  subcode &= ~GTMA_HAVE_LOAD;
                }
              if (subcode & GTMA_HAVE_STORE)
                {
                  pp_string (buffer, "GTMA_HAVE_STORE ");
                  subcode &= ~GTMA_HAVE_STORE;
                }
              if (subcode & GTMA_MAY_ENTER_IRREVOCABLE)
                {
                  pp_string (buffer, "GTMA_MAY_ENTER_IRREVOCABLE ");
                  subcode &= ~GTMA_MAY_ENTER_IRREVOCABLE;
                }
              if (subcode & GTMA_DOES_GO_IRREVOCABLE)
                {
                  pp_string (buffer, "GTMA_DOES_GO_IRREVOCABLE ");
                  subcode &= ~GTMA_DOES_GO_IRREVOCABLE;
                }
              if (subcode)
                pp_printf (buffer, "0x%x ", subcode);
              pp_string (buffer, "]");
            }
        }

      if (!gimple_seq_empty_p (gimple_transaction_body (gs)))
        {
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '{');
          pp_newline (buffer);
          dump_gimple_seq (buffer, gimple_transaction_body (gs),
                           spc + 4, flags);
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '}');
        }
    }
}

/* Dump a GIMPLE_ASM tuple on the pretty_printer BUFFER, SPC spaces of
   indent.  FLAGS specifies details to show in the dump (see TDF_* in
   dumpfile.h).  */

static void
dump_gimple_asm (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  unsigned int i, n, f, fields;

  if (flags & TDF_RAW)
    {
      dump_gimple_fmt (buffer, spc, flags, "%G <%+STRING <%n%s%n>", gs,
                       gimple_asm_string (gs));

      n = gimple_asm_noutputs (gs);
      if (n)
        {
          newline_and_indent (buffer, spc + 2);
          pp_string (buffer, "OUTPUT: ");
          for (i = 0; i < n; i++)
            {
              dump_generic_node (buffer, gimple_asm_output_op (gs, i),
                                 spc, flags, false);
              if (i < n - 1)
                pp_string (buffer, ", ");
            }
        }

      n = gimple_asm_ninputs (gs);
      if (n)
        {
          newline_and_indent (buffer, spc + 2);
          pp_string (buffer, "INPUT: ");
          for (i = 0; i < n; i++)
            {
              dump_generic_node (buffer, gimple_asm_input_op (gs, i),
                                 spc, flags, false);
              if (i < n - 1)
                pp_string (buffer, ", ");
            }
        }

      n = gimple_asm_nclobbers (gs);
      if (n)
        {
          newline_and_indent (buffer, spc + 2);
          pp_string (buffer, "CLOBBER: ");
          for (i = 0; i < n; i++)
            {
              dump_generic_node (buffer, gimple_asm_clobber_op (gs, i),
                                 spc, flags, false);
              if (i < n - 1)
                pp_string (buffer, ", ");
            }
        }

      n = gimple_asm_nlabels (gs);
      if (n)
        {
          newline_and_indent (buffer, spc + 2);
          pp_string (buffer, "LABEL: ");
          for (i = 0; i < n; i++)
            {
              dump_generic_node (buffer, gimple_asm_label_op (gs, i),
                                 spc, flags, false);
              if (i < n - 1)
                pp_string (buffer, ", ");
            }
        }

      newline_and_indent (buffer, spc);
      pp_character (buffer, '>');
    }
  else
    {
      pp_string (buffer, "__asm__");
      if (gimple_asm_volatile_p (gs))
        pp_string (buffer, " __volatile__");
      if (gimple_asm_nlabels (gs))
        pp_string (buffer, " goto");
      pp_string (buffer, "(\"");
      pp_string (buffer, gimple_asm_string (gs));
      pp_string (buffer, "\"");

      if (gimple_asm_nlabels (gs))
        fields = 4;
      else if (gimple_asm_nclobbers (gs))
        fields = 3;
      else if (gimple_asm_ninputs (gs))
        fields = 2;
      else if (gimple_asm_noutputs (gs))
        fields = 1;
      else
        fields = 0;

      for (f = 0; f < fields; ++f)
        {
          pp_string (buffer, " : ");

          switch (f)
            {
            case 0:
              n = gimple_asm_noutputs (gs);
              for (i = 0; i < n; i++)
                {
                  dump_generic_node (buffer, gimple_asm_output_op (gs, i),
                                     spc, flags, false);
                  if (i < n - 1)
                    pp_string (buffer, ", ");
                }
              break;

            case 1:
              n = gimple_asm_ninputs (gs);
              for (i = 0; i < n; i++)
                {
                  dump_generic_node (buffer, gimple_asm_input_op (gs, i),
                                     spc, flags, false);
                  if (i < n - 1)
                    pp_string (buffer, ", ");
                }
              break;

            case 2:
              n = gimple_asm_nclobbers (gs);
              for (i = 0; i < n; i++)
                {
                  dump_generic_node (buffer, gimple_asm_clobber_op (gs, i),
                                     spc, flags, false);
                  if (i < n - 1)
                    pp_string (buffer, ", ");
                }
              break;

            case 3:
              n = gimple_asm_nlabels (gs);
              for (i = 0; i < n; i++)
                {
                  dump_generic_node (buffer, gimple_asm_label_op (gs, i),
                                     spc, flags, false);
                  if (i < n - 1)
                    pp_string (buffer, ", ");
                }
              break;

            default:
              gcc_unreachable ();
            }
        }

      pp_string (buffer, ");");
    }
}


/* Dump a PHI node PHI.  BUFFER, SPC and FLAGS are as in pp_gimple_stmt_1.
   The caller is responsible for calling pp_flush on BUFFER to finalize
   pretty printer.  */

static void
dump_gimple_phi (pretty_printer *buffer, gimple phi, int spc, int flags)
{
  size_t i;
  tree lhs = gimple_phi_result (phi);

  if (flags & TDF_ALIAS
      && POINTER_TYPE_P (TREE_TYPE (lhs))
      && SSA_NAME_PTR_INFO (lhs))
    {
      unsigned int align, misalign;
      struct ptr_info_def *pi = SSA_NAME_PTR_INFO (lhs);
      pp_string (buffer, "PT = ");
      pp_points_to_solution (buffer, &pi->pt);
      newline_and_indent (buffer, spc);
      if (get_ptr_info_alignment (pi, &align, &misalign))
        {
          pp_printf (buffer, "# ALIGN = %u, MISALIGN = %u", align, misalign);
          newline_and_indent (buffer, spc);
        }
      pp_string (buffer, "# ");
    }

  if (flags & TDF_RAW)
      dump_gimple_fmt (buffer, spc, flags, "%G <%T, ", phi,
                       gimple_phi_result (phi));
  else
    {
      dump_generic_node (buffer, lhs, spc, flags, false);
      pp_string (buffer, " = PHI <");
    }
  for (i = 0; i < gimple_phi_num_args (phi); i++)
    {
      if ((flags & TDF_LINENO) && gimple_phi_arg_has_location (phi, i))
        {
          expanded_location xloc;

          xloc = expand_location (gimple_phi_arg_location (phi, i));
          pp_character (buffer, '[');
          if (xloc.file)
            {
              pp_string (buffer, xloc.file);
              pp_string (buffer, " : ");
            }
          pp_decimal_int (buffer, xloc.line);
          pp_string (buffer, ":");
          pp_decimal_int (buffer, xloc.column);
          pp_string (buffer, "] ");
        }
      dump_generic_node (buffer, gimple_phi_arg_def (phi, i), spc, flags,
                         false);
      pp_character (buffer, '(');
      pp_decimal_int (buffer, gimple_phi_arg_edge (phi, i)->src->index);
      pp_character (buffer, ')');
      if (i < gimple_phi_num_args (phi) - 1)
        pp_string (buffer, ", ");
    }
  pp_character (buffer, '>');
}


/* Dump a GIMPLE_OMP_PARALLEL tuple on the pretty_printer BUFFER, SPC spaces
   of indent.  FLAGS specifies details to show in the dump (see TDF_* in
   dumpfile.h).  */

static void
dump_gimple_omp_parallel (pretty_printer *buffer, gimple gs, int spc,
                          int flags)
{
  if (flags & TDF_RAW)
    {
      dump_gimple_fmt (buffer, spc, flags, "%G <%+BODY <%S>%nCLAUSES <", gs,
                       gimple_omp_body (gs));
      dump_omp_clauses (buffer, gimple_omp_parallel_clauses (gs), spc, flags);
      dump_gimple_fmt (buffer, spc, flags, " >, %T, %T%n>",
                       gimple_omp_parallel_child_fn (gs),
                       gimple_omp_parallel_data_arg (gs));
    }
  else
    {
      gimple_seq body;
      pp_string (buffer, "#pragma omp parallel");
      dump_omp_clauses (buffer, gimple_omp_parallel_clauses (gs), spc, flags);
      if (gimple_omp_parallel_child_fn (gs))
        {
          pp_string (buffer, " [child fn: ");
          dump_generic_node (buffer, gimple_omp_parallel_child_fn (gs),
                             spc, flags, false);
          pp_string (buffer, " (");
          if (gimple_omp_parallel_data_arg (gs))
            dump_generic_node (buffer, gimple_omp_parallel_data_arg (gs),
                               spc, flags, false);
          else
            pp_string (buffer, "???");
          pp_string (buffer, ")]");
        }
      body = gimple_omp_body (gs);
      if (body && gimple_code (gimple_seq_first_stmt (body)) != GIMPLE_BIND)
        {
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '{');
          pp_newline (buffer);
          dump_gimple_seq (buffer, body, spc + 4, flags);
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '}');
        }
      else if (body)
        {
          pp_newline (buffer);
          dump_gimple_seq (buffer, body, spc + 2, flags);
        }
    }
}


/* Dump a GIMPLE_OMP_TASK tuple on the pretty_printer BUFFER, SPC spaces
   of indent.  FLAGS specifies details to show in the dump (see TDF_* in
   dumpfile.h).  */

static void
dump_gimple_omp_task (pretty_printer *buffer, gimple gs, int spc,
                      int flags)
{
  if (flags & TDF_RAW)
    {
      dump_gimple_fmt (buffer, spc, flags, "%G <%+BODY <%S>%nCLAUSES <", gs,
                       gimple_omp_body (gs));
      dump_omp_clauses (buffer, gimple_omp_task_clauses (gs), spc, flags);
      dump_gimple_fmt (buffer, spc, flags, " >, %T, %T, %T, %T, %T%n>",
                       gimple_omp_task_child_fn (gs),
                       gimple_omp_task_data_arg (gs),
                       gimple_omp_task_copy_fn (gs),
                       gimple_omp_task_arg_size (gs),
                       gimple_omp_task_arg_size (gs));
    }
  else
    {
      gimple_seq body;
      pp_string (buffer, "#pragma omp task");
      dump_omp_clauses (buffer, gimple_omp_task_clauses (gs), spc, flags);
      if (gimple_omp_task_child_fn (gs))
        {
          pp_string (buffer, " [child fn: ");
          dump_generic_node (buffer, gimple_omp_task_child_fn (gs),
                             spc, flags, false);
          pp_string (buffer, " (");
          if (gimple_omp_task_data_arg (gs))
            dump_generic_node (buffer, gimple_omp_task_data_arg (gs),
                               spc, flags, false);
          else
            pp_string (buffer, "???");
          pp_string (buffer, ")]");
        }
      body = gimple_omp_body (gs);
      if (body && gimple_code (gimple_seq_first_stmt (body)) != GIMPLE_BIND)
        {
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '{');
          pp_newline (buffer);
          dump_gimple_seq (buffer, body, spc + 4, flags);
          newline_and_indent (buffer, spc + 2);
          pp_character (buffer, '}');
        }
      else if (body)
        {
          pp_newline (buffer);
          dump_gimple_seq (buffer, body, spc + 2, flags);
        }
    }
}


/* Dump a GIMPLE_OMP_ATOMIC_LOAD tuple on the pretty_printer BUFFER, SPC
   spaces of indent.  FLAGS specifies details to show in the dump (see TDF_*
   in dumpfile.h).  */

static void
dump_gimple_omp_atomic_load (pretty_printer *buffer, gimple gs, int spc,
                             int flags)
{
  if (flags & TDF_RAW)
    {
      dump_gimple_fmt (buffer, spc, flags, "%G <%T, %T>", gs,
                       gimple_omp_atomic_load_lhs (gs),
                       gimple_omp_atomic_load_rhs (gs));
    }
  else
    {
      pp_string (buffer, "#pragma omp atomic_load");
      if (gimple_omp_atomic_need_value_p (gs))
        pp_string (buffer, " [needed]");
      newline_and_indent (buffer, spc + 2);
      dump_generic_node (buffer, gimple_omp_atomic_load_lhs (gs),
                         spc, flags, false);
      pp_space (buffer);
      pp_character (buffer, '=');
      pp_space (buffer);
      pp_character (buffer, '*');
      dump_generic_node (buffer, gimple_omp_atomic_load_rhs (gs),
                         spc, flags, false);
    }
}

/* Dump a GIMPLE_OMP_ATOMIC_STORE tuple on the pretty_printer BUFFER, SPC
   spaces of indent.  FLAGS specifies details to show in the dump (see TDF_*
   in dumpfile.h).  */

static void
dump_gimple_omp_atomic_store (pretty_printer *buffer, gimple gs, int spc,
                             int flags)
{
  if (flags & TDF_RAW)
    {
      dump_gimple_fmt (buffer, spc, flags, "%G <%T>", gs,
                       gimple_omp_atomic_store_val (gs));
    }
  else
    {
      pp_string (buffer, "#pragma omp atomic_store ");
      if (gimple_omp_atomic_need_value_p (gs))
        pp_string (buffer, "[needed] ");
      pp_character (buffer, '(');
      dump_generic_node (buffer, gimple_omp_atomic_store_val (gs),
                         spc, flags, false);
      pp_character (buffer, ')');
    }
}


/* Dump all the memory operands for statement GS.  BUFFER, SPC and
   FLAGS are as in pp_gimple_stmt_1.  */

static void
dump_gimple_mem_ops (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  tree vdef = gimple_vdef (gs);
  tree vuse = gimple_vuse (gs);

  if (!ssa_operands_active (DECL_STRUCT_FUNCTION (current_function_decl))
      || !gimple_references_memory_p (gs))
    return;

  if (vdef != NULL_TREE)
    {
      pp_string (buffer, "# ");
      dump_generic_node (buffer, vdef, spc + 2, flags, false);
      pp_string (buffer, " = VDEF <");
      dump_generic_node (buffer, vuse, spc + 2, flags, false);
      pp_character (buffer, '>');
      newline_and_indent (buffer, spc);
    }
  else if (vuse != NULL_TREE)
    {
      pp_string (buffer, "# VUSE <");
      dump_generic_node (buffer, vuse, spc + 2, flags, false);
      pp_character (buffer, '>');
      newline_and_indent (buffer, spc);
    }
}


/* Print the gimple statement GS on the pretty printer BUFFER, SPC
   spaces of indent.  FLAGS specifies details to show in the dump (see
   TDF_* in dumpfile.h).  The caller is responsible for calling
   pp_flush on BUFFER to finalize the pretty printer.  */

void
pp_gimple_stmt_1 (pretty_printer *buffer, gimple gs, int spc, int flags)
{
  if (!gs)
    return;

  if (flags & TDF_STMTADDR)
    pp_printf (buffer, "<&%p> ", (void *) gs);

  if ((flags & TDF_LINENO) && gimple_has_location (gs))
    {
      expanded_location xloc = expand_location (gimple_location (gs));
      pp_character (buffer, '[');
      if (xloc.file)
        {
          pp_string (buffer, xloc.file);
          pp_string (buffer, " : ");
        }
      pp_decimal_int (buffer, xloc.line);
      pp_string (buffer, ":");
      pp_decimal_int (buffer, xloc.column);
      pp_string (buffer, "] ");
    }

  if (flags & TDF_EH)
    {
      int lp_nr = lookup_stmt_eh_lp (gs);
      if (lp_nr > 0)
        pp_printf (buffer, "[LP %d] ", lp_nr);
      else if (lp_nr < 0)
        pp_printf (buffer, "[MNT %d] ", -lp_nr);
    }

  if ((flags & (TDF_VOPS|TDF_MEMSYMS))
      && gimple_has_mem_ops (gs))
    dump_gimple_mem_ops (buffer, gs, spc, flags);

  if ((flags & TDF_ALIAS)
      && gimple_has_lhs (gs))
    {
      tree lhs = gimple_get_lhs (gs);
      if (TREE_CODE (lhs) == SSA_NAME
          && POINTER_TYPE_P (TREE_TYPE (lhs))
          && SSA_NAME_PTR_INFO (lhs))
        {
          unsigned int align, misalign;
          struct ptr_info_def *pi = SSA_NAME_PTR_INFO (lhs);
          pp_string (buffer, "# PT = ");
          pp_points_to_solution (buffer, &pi->pt);
          newline_and_indent (buffer, spc);
          if (get_ptr_info_alignment (pi, &align, &misalign))
            {
              pp_printf (buffer, "# ALIGN = %u, MISALIGN = %u",
                         align, misalign);
              newline_and_indent (buffer, spc);
            }
        }
    }

  switch (gimple_code (gs))
    {
    case GIMPLE_ASM:
      dump_gimple_asm (buffer, gs, spc, flags);
      break;

    case GIMPLE_ASSIGN:
      dump_gimple_assign (buffer, gs, spc, flags);
      break;

    case GIMPLE_BIND:
      dump_gimple_bind (buffer, gs, spc, flags);
      break;

    case GIMPLE_CALL:
      dump_gimple_call (buffer, gs, spc, flags);
      break;

    case GIMPLE_COND:
      dump_gimple_cond (buffer, gs, spc, flags);
      break;

    case GIMPLE_LABEL:
      dump_gimple_label (buffer, gs, spc, flags);
      break;

    case GIMPLE_GOTO:
      dump_gimple_goto (buffer, gs, spc, flags);
      break;

    case GIMPLE_NOP:
      pp_string (buffer, "GIMPLE_NOP");
      break;

    case GIMPLE_RETURN:
      dump_gimple_return (buffer, gs, spc, flags);
      break;

    case GIMPLE_SWITCH:
      dump_gimple_switch (buffer, gs, spc, flags);
      break;

    case GIMPLE_TRY:
      dump_gimple_try (buffer, gs, spc, flags);
      break;

    case GIMPLE_PHI:
      dump_gimple_phi (buffer, gs, spc, flags);
      break;

    case GIMPLE_OMP_PARALLEL:
      dump_gimple_omp_parallel (buffer, gs, spc, flags);
      break;

    case GIMPLE_OMP_TASK:
      dump_gimple_omp_task (buffer, gs, spc, flags);
      break;

    case GIMPLE_OMP_ATOMIC_LOAD:
      dump_gimple_omp_atomic_load (buffer, gs, spc, flags);

      break;

    case GIMPLE_OMP_ATOMIC_STORE:
      dump_gimple_omp_atomic_store (buffer, gs, spc, flags);
      break;

    case GIMPLE_OMP_FOR:
      dump_gimple_omp_for (buffer, gs, spc, flags);
      break;

    case GIMPLE_OMP_CONTINUE:
      dump_gimple_omp_continue (buffer, gs, spc, flags);
      break;

    case GIMPLE_OMP_SINGLE:
      dump_gimple_omp_single (buffer, gs, spc, flags);
      break;

    case GIMPLE_OMP_RETURN:
      dump_gimple_omp_return (buffer, gs, spc, flags);
      break;

    case GIMPLE_OMP_SECTIONS:
      dump_gimple_omp_sections (buffer, gs, spc, flags);
      break;

    case GIMPLE_OMP_SECTIONS_SWITCH:
      pp_string (buffer, "GIMPLE_SECTIONS_SWITCH");
      break;

    case GIMPLE_OMP_MASTER:
    case GIMPLE_OMP_ORDERED:
    case GIMPLE_OMP_SECTION:
      dump_gimple_omp_block (buffer, gs, spc, flags);
      break;

    case GIMPLE_OMP_CRITICAL:
      dump_gimple_omp_critical (buffer, gs, spc, flags);
      break;

    case GIMPLE_CATCH:
      dump_gimple_catch (buffer, gs, spc, flags);
      break;

    case GIMPLE_EH_FILTER:
      dump_gimple_eh_filter (buffer, gs, spc, flags);
      break;

    case GIMPLE_EH_MUST_NOT_THROW:
      dump_gimple_eh_must_not_throw (buffer, gs, spc, flags);
      break;

    case GIMPLE_EH_ELSE:
      dump_gimple_eh_else (buffer, gs, spc, flags);
      break;

    case GIMPLE_RESX:
      dump_gimple_resx (buffer, gs, spc, flags);
      break;

    case GIMPLE_EH_DISPATCH:
      dump_gimple_eh_dispatch (buffer, gs, spc, flags);
      break;

    case GIMPLE_DEBUG:
      dump_gimple_debug (buffer, gs, spc, flags);
      break;

    case GIMPLE_PREDICT:
      pp_string (buffer, "// predicted ");
      if (gimple_predict_outcome (gs))
        pp_string (buffer, "likely by ");
      else
        pp_string (buffer, "unlikely by ");
      pp_string (buffer, predictor_name (gimple_predict_predictor (gs)));
      pp_string (buffer, " predictor.");
      break;

    case GIMPLE_TRANSACTION:
      dump_gimple_transaction (buffer, gs, spc, flags);
      break;

    default:
      GIMPLE_NIY;
    }

  /* If we're building a diagnostic, the formatted text will be
     written into BUFFER's stream by the caller; otherwise, write it
     now.  */
  if (!(flags & TDF_DIAGNOSTIC))
    pp_write_text_to_stream (buffer);
}


/* Dumps header of basic block BB to OUTF indented by INDENT
   spaces and details described by flags.  */

static void
dump_gimple_bb_header (FILE *outf, basic_block bb, int indent, int flags)
{
  if (flags & TDF_BLOCKS)
    {
      if (flags & TDF_LINENO)
        {
          gimple_stmt_iterator gsi;
          char *s_indent = (char *) alloca ((size_t) indent + 1);
          memset (s_indent, ' ', (size_t) indent);
          s_indent[indent] = '\0';

          if (flags & TDF_COMMENT)
            fputs (";; ", outf);

          for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
            if (!is_gimple_debug (gsi_stmt (gsi))
                && get_lineno (gsi_stmt (gsi)) != UNKNOWN_LOCATION)
              {
                fprintf (outf, "%sstarting at line %d",
                         s_indent, get_lineno (gsi_stmt (gsi)));
                break;
              }
          if (bb->discriminator)
            fprintf (outf, ", discriminator %i", bb->discriminator);
          fputc ('\n', outf);
        }
    }
  else
    {
      gimple stmt = first_stmt (bb);
      if (!stmt || gimple_code (stmt) != GIMPLE_LABEL)
        {
          char *s_indent = (char *) alloca ((size_t) indent - 2 + 1);
          memset (s_indent, ' ', (size_t) indent);
          s_indent[indent] = '\0';
          fprintf (outf, "%s<bb %d>:\n", s_indent, bb->index);
        }
    }
}


/* Dumps end of basic block BB to buffer BUFFER indented by INDENT
   spaces.  */

static void
dump_gimple_bb_footer (FILE *outf ATTRIBUTE_UNUSED,
                       basic_block bb ATTRIBUTE_UNUSED,
                       int indent ATTRIBUTE_UNUSED,
                       int flags ATTRIBUTE_UNUSED)
{
  /* There is currently no GIMPLE-specific basic block info to dump.  */
  return;
}


/* Dump PHI nodes of basic block BB to BUFFER with details described
   by FLAGS and indented by INDENT spaces.  */

static void
dump_phi_nodes (pretty_printer *buffer, basic_block bb, int indent, int flags)
{
  gimple_stmt_iterator i;

  for (i = gsi_start_phis (bb); !gsi_end_p (i); gsi_next (&i))
    {
      gimple phi = gsi_stmt (i);
      if (!virtual_operand_p (gimple_phi_result (phi)) || (flags & TDF_VOPS))
        {
          INDENT (indent);
          pp_string (buffer, "# ");
          dump_gimple_phi (buffer, phi, indent, flags);
          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)
{
  gimple stmt;

  stmt = first_stmt (bb);

  pp_string (buffer, "goto <bb ");
  pp_decimal_int (buffer, bb->index);
  pp_character (buffer, '>');
  if (stmt && gimple_code (stmt) == GIMPLE_LABEL)
    {
      pp_string (buffer, " (");
      dump_generic_node (buffer, gimple_label_label (stmt), 0, 0, false);
      pp_character (buffer, ')');
      pp_semicolon (buffer);
    }
  else
    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;
  gimple stmt;

  stmt = last_stmt (bb);

  if (stmt && gimple_code (stmt) == GIMPLE_COND)
    {
      edge true_edge, false_edge;

      /* When we are emitting the code or changing CFG, it is possible that
         the edges are not yet created.  When we are using debug_bb in such
         a situation, we do not want it to crash.  */
      if (EDGE_COUNT (bb->succs) != 2)
        return;
      extract_true_false_edges_from_block (bb, &true_edge, &false_edge);

      INDENT (indent + 2);
      pp_cfg_jump (buffer, true_edge->dest);
      newline_and_indent (buffer, indent);
      pp_string (buffer, "else");
      newline_and_indent (buffer, indent + 2);
      pp_cfg_jump (buffer, false_edge->dest);
      pp_newline (buffer);
      return;
    }

  /* If there is a fallthru edge, we may need to add an artificial
     goto to the dump.  */
  e = find_fallthru_edge (bb->succs);

  if (e && e->dest != bb->next_bb)
    {
      INDENT (indent);

      if ((flags & TDF_LINENO)
          && e->goto_locus != UNKNOWN_LOCATION
          )
        {
          expanded_location goto_xloc;
          goto_xloc = expand_location (e->goto_locus);
          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_decimal_int (buffer, goto_xloc.column);
          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
gimple_dump_bb_buff (pretty_printer *buffer, basic_block bb, int indent,
                     int flags)
{
  gimple_stmt_iterator gsi;
  gimple stmt;
  int label_indent = indent - 2;

  if (label_indent < 0)
    label_indent = 0;

  dump_phi_nodes (buffer, bb, indent, flags);

  for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
    {
      int curr_indent;

      stmt = gsi_stmt (gsi);

      curr_indent = gimple_code (stmt) == GIMPLE_LABEL ? label_indent : indent;

      INDENT (curr_indent);
      pp_gimple_stmt_1 (buffer, stmt, curr_indent, flags);
      pp_newline_and_flush (buffer);
      gcc_checking_assert (DECL_STRUCT_FUNCTION (current_function_decl));
      dump_histograms_for_stmt (DECL_STRUCT_FUNCTION (current_function_decl),
                                buffer->buffer->stream, stmt);
    }

  dump_implicit_edges (buffer, bb, indent, flags);
  pp_flush (buffer);
}


/* Dumps basic block BB to FILE with details described by FLAGS and
   indented by INDENT spaces.  */

void
gimple_dump_bb (FILE *file, basic_block bb, int indent, int flags)
{
  dump_gimple_bb_header (file, bb, indent, flags);
  if (bb->index >= NUM_FIXED_BLOCKS)
    {
      maybe_init_pretty_print (file);
      gimple_dump_bb_buff (&buffer, bb, indent, flags);
    }
  dump_gimple_bb_footer (file, bb, indent, flags);
}