static tree
cp_expand_cond_array_notations (tree orig_stmt)
{
  vec<tree, va_gc> *array_list = NULL, *array_operand = NULL;
  size_t list_size = 0;
  size_t rank = 0, ii = 0;
  tree an_init, body, stmt = NULL_TREE;
  tree builtin_loop, new_var = NULL_TREE;
  tree loop_with_init = alloc_stmt_list ();
  location_t location = UNKNOWN_LOCATION;
  vec<vec<an_parts> > an_info = vNULL;
  vec<an_loop_parts> an_loop_info = vNULL;

  if (TREE_CODE (orig_stmt) == COND_EXPR)
    {
      size_t cond_rank = 0, yes_rank = 0, no_rank = 0;
      tree yes_expr = COND_EXPR_THEN (orig_stmt);
      tree no_expr = COND_EXPR_ELSE (orig_stmt);
      tree cond = COND_EXPR_COND (orig_stmt);
      if (!find_rank (EXPR_LOCATION (cond), cond, cond, true, &cond_rank)
	  || !find_rank (EXPR_LOCATION (yes_expr), yes_expr, yes_expr, true,
			 &yes_rank)
	  || find_rank (EXPR_LOCATION (no_expr), no_expr, no_expr, true,
			&no_rank))
	return error_mark_node;
      /* If the condition has a zero rank, then handle array notations in body
	 separately.  */
      if (cond_rank == 0)
	return orig_stmt;
      if (cond_rank != yes_rank && yes_rank != 0)
	{
	  error_at (EXPR_LOCATION (yes_expr), "rank mismatch with controlling"
		    " expression of parent if-statement");
	  return error_mark_node;
	}
      else if (cond_rank != no_rank && no_rank != 0)
	{
	  error_at (EXPR_LOCATION (no_expr), "rank mismatch with controlling "
		    "expression of parent if-statement");
	  return error_mark_node;
	}
    }
  else if (TREE_CODE (orig_stmt) == IF_STMT)
    {
      size_t cond_rank = 0, yes_rank = 0, no_rank = 0;
      tree yes_expr = THEN_CLAUSE (orig_stmt);
      tree no_expr = ELSE_CLAUSE (orig_stmt);
      tree cond = IF_COND (orig_stmt);
      if (!find_rank (EXPR_LOCATION (cond), cond, cond, true, &cond_rank)
	  || (yes_expr
	      && !find_rank (EXPR_LOCATION (yes_expr), yes_expr, yes_expr, true,
			     &yes_rank))
	  || (no_expr
	      && !find_rank (EXPR_LOCATION (no_expr), no_expr, no_expr, true,
			     &no_rank)))
	return error_mark_node;

      /* Same reasoning as for COND_EXPR.  */
      if (cond_rank == 0)
	return orig_stmt;
      else if (cond_rank != yes_rank && yes_rank != 0)
	{
	  error_at (EXPR_LOCATION (yes_expr), "rank mismatch with controlling"
		    " expression of parent if-statement");
	  return error_mark_node;
	}
      else if (cond_rank != no_rank && no_rank != 0)
	{
	  error_at (EXPR_LOCATION (no_expr), "rank mismatch with controlling "
		    "expression of parent if-statement");
	  return error_mark_node;
	}
    }
  else if (truth_value_p (TREE_CODE (orig_stmt)))
    {
      size_t left_rank = 0, right_rank = 0;
      tree left_expr = TREE_OPERAND (orig_stmt, 0);
      tree right_expr = TREE_OPERAND (orig_stmt, 1);
      if (!find_rank (EXPR_LOCATION (left_expr), left_expr, left_expr, true,
		      &left_rank)
	  || !find_rank (EXPR_LOCATION (right_expr), right_expr, right_expr,
			 true, &right_rank))
	return error_mark_node;
      if (right_rank == 0 && left_rank == 0)
	return orig_stmt;
    }

  if (!find_rank (EXPR_LOCATION (orig_stmt), orig_stmt, orig_stmt, true,
		  &rank))
    return error_mark_node;
  if (rank == 0)
    return orig_stmt;

  extract_array_notation_exprs (orig_stmt, false, &array_list);
  stmt = alloc_stmt_list ();
  for (ii = 0; ii < vec_safe_length (array_list); ii++)
    {
      tree array_node = (*array_list)[ii];
      if (TREE_CODE (array_node) == CALL_EXPR
	  || TREE_CODE (array_node) == AGGR_INIT_EXPR)
	{
	  builtin_loop = expand_sec_reduce_builtin (array_node, &new_var);
	  if (builtin_loop == error_mark_node)
	    finish_expr_stmt (error_mark_node);
	  else if (new_var)
	    {
	      vec<tree, va_gc> *sub_list = NULL, *new_var_list = NULL;
	      vec_safe_push (sub_list, array_node);
	      vec_safe_push (new_var_list, new_var);
	      replace_array_notations (&orig_stmt, false, sub_list,
				       new_var_list);
	      append_to_statement_list (builtin_loop, &stmt);
	    }
	}
    }
  append_to_statement_list (orig_stmt, &stmt);
  rank = 0;
  array_list = NULL;
  if (!find_rank (EXPR_LOCATION (stmt), stmt, stmt, true, &rank))
    return error_mark_node;
  if (rank == 0)
    return stmt;
  
  extract_array_notation_exprs (stmt, true, &array_list);
  list_size = vec_safe_length (array_list);
  if (list_size == 0)
    return stmt;

  location = EXPR_LOCATION (orig_stmt);
  list_size = vec_safe_length (array_list);
  an_loop_info.safe_grow_cleared (rank);
  
  an_init = push_stmt_list ();

  /* Assign the array notation components to variable so that they can
     satisfy the exec-once rule.  */
  for (ii = 0; ii < list_size; ii++)
    {
      tree anode = (*array_list)[ii];
      make_triplet_val_inv (&ARRAY_NOTATION_START (anode));
      make_triplet_val_inv (&ARRAY_NOTATION_LENGTH (anode));
      make_triplet_val_inv (&ARRAY_NOTATION_STRIDE (anode));
    }
  cilkplus_extract_an_triplets (array_list, list_size, rank, &an_info);

  for (ii = 0; ii < rank; ii++) 
    {
      tree typ = ptrdiff_type_node;
      an_loop_info[ii].var = create_temporary_var (typ);
      add_decl_expr (an_loop_info[ii].var);
      an_loop_info[ii].ind_init =
	build_x_modify_expr (location, an_loop_info[ii].var, INIT_EXPR,
			     build_zero_cst (typ), tf_warning_or_error);
    }
  array_operand = create_array_refs (location, an_info, an_loop_info,
				     list_size, rank);
  replace_array_notations (&stmt, true, array_list, array_operand);
  create_cmp_incr (location, &an_loop_info, rank, an_info, tf_warning_or_error);
  
  an_init = pop_stmt_list (an_init);
  append_to_statement_list (an_init, &loop_with_init);
  body = stmt;

  for (ii = 0; ii < rank; ii++)
    {
      tree new_loop = push_stmt_list ();
      create_an_loop (an_loop_info[ii].ind_init, an_loop_info[ii].cmp,
		      an_loop_info[ii].incr, body);
      body = pop_stmt_list (new_loop);
    }
  append_to_statement_list (body, &loop_with_init);

  an_info.release ();
  an_loop_info.release ();
  
  return loop_with_init;
}
Exemplo n.º 2
0
bool
cp_dump_tree (void* dump_info, tree t)
{
  enum tree_code code;
  dump_info_p di = (dump_info_p) dump_info;

  /* Figure out what kind of node this is.  */
  code = TREE_CODE (t);

  if (DECL_P (t))
    {
      if (DECL_LANG_SPECIFIC (t) && DECL_LANGUAGE (t) != lang_cplusplus)
        dump_string_field (di, "lang", language_to_string (DECL_LANGUAGE (t)));
    }

  switch (code)
    {
    case IDENTIFIER_NODE:
      if (IDENTIFIER_OPNAME_P (t))
        {
          dump_string_field (di, "note", "operator");
          return true;
        }
      else if (IDENTIFIER_TYPENAME_P (t))
        {
          dump_child ("tynm", TREE_TYPE (t));
          return true;
        }
      break;

    case OFFSET_TYPE:
      dump_string_field (di, "note", "ptrmem");
      dump_child ("ptd", TYPE_PTRMEM_POINTED_TO_TYPE (t));
      dump_child ("cls", TYPE_PTRMEM_CLASS_TYPE (t));
      return true;

    case RECORD_TYPE:
      if (TYPE_PTRMEMFUNC_P (t))
        {
          dump_string_field (di, "note", "ptrmem");
          dump_child ("ptd", TYPE_PTRMEM_POINTED_TO_TYPE (t));
          dump_child ("cls", TYPE_PTRMEM_CLASS_TYPE (t));
          return true;
        }
      /* Fall through.  */

    case UNION_TYPE:
      /* Is it a type used as a base? */
      if (TYPE_CONTEXT (t) && TREE_CODE (TYPE_CONTEXT (t)) == TREE_CODE (t)
          && CLASSTYPE_AS_BASE (TYPE_CONTEXT (t)) == t)
        {
          dump_child ("bfld", TYPE_CONTEXT (t));
          return true;
        }

      if (! IS_AGGR_TYPE (t))
        break;

      dump_child ("vfld", TYPE_VFIELD (t));
      if (CLASSTYPE_TEMPLATE_SPECIALIZATION(t))
        dump_string(di, "spec");

      if (!dump_flag (di, TDF_SLIM, t) && TYPE_BINFO (t))
        {
          int i;
          tree binfo;
          tree base_binfo;

          for (binfo = TYPE_BINFO (t), i = 0;
               BINFO_BASE_ITERATE (binfo, i, base_binfo); ++i)
            {
              dump_child ("base", BINFO_TYPE (base_binfo));
              if (BINFO_VIRTUAL_P (base_binfo))
                dump_string_field (di, "spec", "virt");
              dump_access (di, base_binfo);
            }
        }
      break;

    case FIELD_DECL:
      dump_access (di, t);
      if (DECL_MUTABLE_P (t))
        dump_string_field (di, "spec", "mutable");
      break;

    case VAR_DECL:
      if (TREE_CODE (CP_DECL_CONTEXT (t)) == RECORD_TYPE)
        dump_access (di, t);
      if (TREE_STATIC (t) && !TREE_PUBLIC (t))
        dump_string_field (di, "link", "static");
      break;

    case FUNCTION_DECL:
      if (!DECL_THUNK_P (t))
        {
          if (DECL_OVERLOADED_OPERATOR_P (t)) {
            dump_string_field (di, "note", "operator");
            dump_op (di, t);
          }
          if (DECL_FUNCTION_MEMBER_P (t))
            {
              dump_string_field (di, "note", "member");
              dump_access (di, t);
            }
          if (DECL_PURE_VIRTUAL_P (t))
            dump_string_field (di, "spec", "pure");
          if (DECL_VIRTUAL_P (t))
            dump_string_field (di, "spec", "virt");
          if (DECL_CONSTRUCTOR_P (t))
            dump_string_field (di, "note", "constructor");
          if (DECL_DESTRUCTOR_P (t))
            dump_string_field (di, "note", "destructor");
          if (DECL_CONV_FN_P (t))
            dump_string_field (di, "note", "conversion");
          if (DECL_GLOBAL_CTOR_P (t))
            dump_string_field (di, "note", "global init");
          if (DECL_GLOBAL_DTOR_P (t))
            dump_string_field (di, "note", "global fini");
          if (DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t))
            dump_string_field (di, "note", "pseudo tmpl");
        }
      else
        {
          tree virt = THUNK_VIRTUAL_OFFSET (t);

          dump_string_field (di, "note", "thunk");
          if (DECL_THIS_THUNK_P (t))
            dump_string_field (di, "note", "this adjusting");
          else
            {
              dump_string_field (di, "note", "result adjusting");
              if (virt)
                virt = BINFO_VPTR_FIELD (virt);
            }
          dump_int (di, "fixd", THUNK_FIXED_OFFSET (t));
          if (virt)
            dump_int (di, "virt", tree_low_cst (virt, 0));
          dump_child ("fn", DECL_INITIAL (t));
        }
      break;

    case NAMESPACE_DECL:
      if (DECL_NAMESPACE_ALIAS (t))
        dump_child ("alis", DECL_NAMESPACE_ALIAS (t));
      else if (!dump_flag (di, TDF_SLIM, t))
        dump_child ("dcls", cp_namespace_decls (t));
      break;

    case TEMPLATE_DECL:
      dump_child ("rslt", DECL_TEMPLATE_RESULT (t));
      dump_child ("inst", DECL_TEMPLATE_INSTANTIATIONS (t));
      dump_child ("spcs", DECL_TEMPLATE_SPECIALIZATIONS (t));
      dump_child ("prms", DECL_TEMPLATE_PARMS (t));
      break;

    case OVERLOAD:
      dump_child ("crnt", OVL_CURRENT (t));
      dump_child ("chan", OVL_CHAIN (t));
      break;

    case TRY_BLOCK:
      dump_stmt (di, t);
      if (CLEANUP_P (t))
        dump_string_field (di, "note", "cleanup");
      dump_child ("body", TRY_STMTS (t));
      dump_child ("hdlr", TRY_HANDLERS (t));
      break;

    case EH_SPEC_BLOCK:
      dump_stmt (di, t);
      dump_child ("body", EH_SPEC_STMTS (t));
      dump_child ("raises", EH_SPEC_RAISES (t));
      break;

    case PTRMEM_CST:
      dump_child ("clas", PTRMEM_CST_CLASS (t));
      dump_child ("mbr", PTRMEM_CST_MEMBER (t));
      break;

    case THROW_EXPR:
      /* These nodes are unary, but do not have code class `1'.  */
      dump_child ("op 0", TREE_OPERAND (t, 0));
      break;

    case AGGR_INIT_EXPR:
      dump_int (di, "ctor", AGGR_INIT_VIA_CTOR_P (t));
      dump_child ("fn", TREE_OPERAND (t, 0));
      dump_child ("args", TREE_OPERAND (t, 1));
      dump_child ("decl", TREE_OPERAND (t, 2));
      break;

    case HANDLER:
      dump_stmt (di, t);
      dump_child ("parm", HANDLER_PARMS (t));
      dump_child ("body", HANDLER_BODY (t));
      break;

    case MUST_NOT_THROW_EXPR:
      dump_stmt (di, t);
      dump_child ("body", TREE_OPERAND (t, 0));
      break;

    case USING_STMT:
      dump_stmt (di, t);
      dump_child ("nmsp", USING_STMT_NAMESPACE (t));
      break;

    case CLEANUP_STMT:
      dump_stmt (di, t);
      dump_child ("decl", CLEANUP_DECL (t));
      dump_child ("expr", CLEANUP_EXPR (t));
      dump_child ("body", CLEANUP_BODY (t));
      break;

    case IF_STMT:
      dump_stmt (di, t);
      dump_child ("cond", IF_COND (t));
      dump_child ("then", THEN_CLAUSE (t));
      dump_child ("else", ELSE_CLAUSE (t));
      break;

    case BREAK_STMT:
    case CONTINUE_STMT:
      dump_stmt (di, t);
      break;

    case DO_STMT:
      dump_stmt (di, t);
      dump_child ("body", DO_BODY (t));
      dump_child ("cond", DO_COND (t));
      break;

    case FOR_STMT:
      dump_stmt (di, t);
      dump_child ("init", FOR_INIT_STMT (t));
      dump_child ("cond", FOR_COND (t));
      dump_child ("expr", FOR_EXPR (t));
      dump_child ("body", FOR_BODY (t));
      break;

    case SWITCH_STMT:
      dump_stmt (di, t);
      dump_child ("cond", SWITCH_STMT_COND (t));
      dump_child ("body", SWITCH_STMT_BODY (t));
      break;

    case WHILE_STMT:
      dump_stmt (di, t);
      dump_child ("cond", WHILE_COND (t));
      dump_child ("body", WHILE_BODY (t));
      break;

    case STMT_EXPR:
      dump_child ("stmt", STMT_EXPR_STMT (t));
      break;

    case EXPR_STMT:
      dump_stmt (di, t);
      dump_child ("expr", EXPR_STMT_EXPR (t));
      break;

    default:
      break;
    }

  return c_dump_tree (di, t);
}
Exemplo n.º 3
0
static void
pp_cxx_statement (cxx_pretty_printer *pp, tree t)
{
  switch (TREE_CODE (t))
    {
    case CTOR_INITIALIZER:
      pp_cxx_ctor_initializer (pp, t);
      break;

    case USING_STMT:
      pp_cxx_identifier (pp, "using");
      pp_cxx_identifier (pp, "namespace");
      if (DECL_CONTEXT (t))
	pp_cxx_nested_name_specifier (pp, DECL_CONTEXT (t));
      pp_cxx_qualified_id (pp, USING_STMT_NAMESPACE (t));
      break;

    case USING_DECL:
      pp_cxx_identifier (pp, "using");
      pp_cxx_nested_name_specifier (pp, USING_DECL_SCOPE (t));
      pp_cxx_unqualified_id (pp, DECL_NAME (t));
      break;

    case EH_SPEC_BLOCK:
      break;

      /* try-block:
	    try compound-statement handler-seq  */
    case TRY_BLOCK:
      pp_maybe_newline_and_indent (pp, 0);
      pp_cxx_identifier (pp, "try");
      pp_newline_and_indent (pp, 3);
      pp_cxx_statement (pp, TRY_STMTS (t));
      pp_newline_and_indent (pp, -3);
      if (CLEANUP_P (t))
	;
      else
	pp_cxx_statement (pp, TRY_HANDLERS (t));
      break;

      /*
	 handler-seq:
	    handler handler-seq(opt)

	 handler:
	 catch ( exception-declaration ) compound-statement

	 exception-declaration:
	    type-specifier-seq declarator
	    type-specifier-seq abstract-declarator
	    ...   */
    case HANDLER:
      pp_cxx_identifier (pp, "catch");
      pp_cxx_left_paren (pp);
      pp_cxx_exception_declaration (pp, HANDLER_PARMS (t));
      pp_cxx_right_paren (pp);
      pp_indentation (pp) += 3;
      pp_needs_newline (pp) = true;
      pp_cxx_statement (pp, HANDLER_BODY (t));
      pp_indentation (pp) -= 3;
      pp_needs_newline (pp) = true;
      break;

      /* selection-statement:
	    if ( expression ) statement
	    if ( expression ) statement else statement  */
    case IF_STMT:
      pp_cxx_identifier (pp, "if");
      pp_cxx_whitespace (pp);
      pp_cxx_left_paren (pp);
      pp_cxx_expression (pp, IF_COND (t));
      pp_cxx_right_paren (pp);
      pp_newline_and_indent (pp, 2);
      pp_cxx_statement (pp, THEN_CLAUSE (t));
      pp_newline_and_indent (pp, -2);
      if (ELSE_CLAUSE (t))
	{
	  tree else_clause = ELSE_CLAUSE (t);
	  pp_cxx_identifier (pp, "else");
	  if (TREE_CODE (else_clause) == IF_STMT)
	    pp_cxx_whitespace (pp);
	  else
	    pp_newline_and_indent (pp, 2);
	  pp_cxx_statement (pp, else_clause);
	  if (TREE_CODE (else_clause) != IF_STMT)
	    pp_newline_and_indent (pp, -2);
	}
      break;

    case SWITCH_STMT:
      pp_cxx_identifier (pp, "switch");
      pp_space (pp);
      pp_cxx_left_paren (pp);
      pp_cxx_expression (pp, SWITCH_STMT_COND (t));
      pp_cxx_right_paren (pp);
      pp_indentation (pp) += 3;
      pp_needs_newline (pp) = true;
      pp_cxx_statement (pp, SWITCH_STMT_BODY (t));
      pp_newline_and_indent (pp, -3);
      break;

      /* iteration-statement:
	    while ( expression ) statement
	    do statement while ( expression ) ;
	    for ( expression(opt) ; expression(opt) ; expression(opt) ) statement
	    for ( declaration expression(opt) ; expression(opt) ) statement  */
    case WHILE_STMT:
      pp_cxx_identifier (pp, "while");
      pp_space (pp);
      pp_cxx_left_paren (pp);
      pp_cxx_expression (pp, WHILE_COND (t));
      pp_cxx_right_paren (pp);
      pp_newline_and_indent (pp, 3);
      pp_cxx_statement (pp, WHILE_BODY (t));
      pp_indentation (pp) -= 3;
      pp_needs_newline (pp) = true;
      break;

    case DO_STMT:
      pp_cxx_identifier (pp, "do");
      pp_newline_and_indent (pp, 3);
      pp_cxx_statement (pp, DO_BODY (t));
      pp_newline_and_indent (pp, -3);
      pp_cxx_identifier (pp, "while");
      pp_space (pp);
      pp_cxx_left_paren (pp);
      pp_cxx_expression (pp, DO_COND (t));
      pp_cxx_right_paren (pp);
      pp_cxx_semicolon (pp);
      pp_needs_newline (pp) = true;
      break;

    case FOR_STMT:
      pp_cxx_identifier (pp, "for");
      pp_space (pp);
      pp_cxx_left_paren (pp);
      if (FOR_INIT_STMT (t))
	pp_cxx_statement (pp, FOR_INIT_STMT (t));
      else
	pp_cxx_semicolon (pp);
      pp_needs_newline (pp) = false;
      pp_cxx_whitespace (pp);
      if (FOR_COND (t))
	pp_cxx_expression (pp, FOR_COND (t));
      pp_cxx_semicolon (pp);
      pp_needs_newline (pp) = false;
      pp_cxx_whitespace (pp);
      if (FOR_EXPR (t))
	pp_cxx_expression (pp, FOR_EXPR (t));
      pp_cxx_right_paren (pp);
      pp_newline_and_indent (pp, 3);
      pp_cxx_statement (pp, FOR_BODY (t));
      pp_indentation (pp) -= 3;
      pp_needs_newline (pp) = true;
      break;

      /* jump-statement:
	    goto identifier;
	    continue ;
	    return expression(opt) ;  */
    case BREAK_STMT:
    case CONTINUE_STMT:
      pp_identifier (pp, TREE_CODE (t) == BREAK_STMT ? "break" : "continue");
      pp_cxx_semicolon (pp);
      pp_needs_newline (pp) = true;
      break;

      /* expression-statement:
	    expression(opt) ;  */
    case EXPR_STMT:
      pp_cxx_expression (pp, EXPR_STMT_EXPR (t));
      pp_cxx_semicolon (pp);
      pp_needs_newline (pp) = true;
      break;

    case CLEANUP_STMT:
      pp_cxx_identifier (pp, "try");
      pp_newline_and_indent (pp, 2);
      pp_cxx_statement (pp, CLEANUP_BODY (t));
      pp_newline_and_indent (pp, -2);
      pp_cxx_identifier (pp, CLEANUP_EH_ONLY (t) ? "catch" : "finally");
      pp_newline_and_indent (pp, 2);
      pp_cxx_statement (pp, CLEANUP_EXPR (t));
      pp_newline_and_indent (pp, -2);
      break;

    default:
      pp_c_statement (pp_c_base (pp), t);
      break;
    }
}