示例#1
0
void
declare_function_name ()
{
  tree decl, init;
  char *name, *printable_name;

  if (current_function_decl == NULL)
    {
      name = "";
      printable_name = "top level";
    }
  else
    {
      char *kind = "function";
      if (TREE_CODE (TREE_TYPE (current_function_decl)) == METHOD_TYPE)
	kind = "method";
      /* Allow functions to be nameless (such as artificial ones).  */
      if (DECL_NAME (current_function_decl))
        name = IDENTIFIER_POINTER (DECL_NAME (current_function_decl));
      else
	name = "";
      printable_name = (*decl_printable_name) (current_function_decl, &kind);
    }

  push_obstacks_nochange ();
  decl = build_decl (VAR_DECL, get_identifier ("__FUNCTION__"),
		     char_array_type_node);
  TREE_STATIC (decl) = 1;
  TREE_READONLY (decl) = 1;
  DECL_SOURCE_LINE (decl) = 0;
  DECL_IN_SYSTEM_HEADER (decl) = 1;
  DECL_IGNORED_P (decl) = 1;
  init = build_string (strlen (name) + 1, name);
  TREE_TYPE (init) = char_array_type_node;
  DECL_INITIAL (decl) = init;
  finish_decl (pushdecl (decl), init, NULL_TREE);

  push_obstacks_nochange ();
  decl = build_decl (VAR_DECL, get_identifier ("__PRETTY_FUNCTION__"),
		     char_array_type_node);
  TREE_STATIC (decl) = 1;
  TREE_READONLY (decl) = 1;
  DECL_SOURCE_LINE (decl) = 0;
  DECL_IN_SYSTEM_HEADER (decl) = 1;
  DECL_IGNORED_P (decl) = 1;
  init = build_string (strlen (printable_name) + 1, printable_name);
  TREE_TYPE (init) = char_array_type_node;
  DECL_INITIAL (decl) = init;
  finish_decl (pushdecl (decl), init, NULL_TREE);
}
示例#2
0
bool
c_warn_unused_global_decl (tree decl)
{
  if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl))
    return false;
  if (DECL_IN_SYSTEM_HEADER (decl))
    return false;

  return true;
}
示例#3
0
bool
cxx_warn_unused_global_decl (const_tree decl)
{
  if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl))
    return false;
  if (DECL_IN_SYSTEM_HEADER (decl))
    return false;

  /* Const variables take the place of #defines in C++.  */
  if (VAR_P (decl) && TREE_READONLY (decl))
    return false;

  return true;
}
bool
lhd_warn_unused_global_decl (const_tree decl)
{
  /* This is what used to exist in check_global_declarations.  Probably
     not many of these actually apply to non-C languages.  */

  if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl))
    return false;
  if (TREE_CODE (decl) == VAR_DECL && TREE_READONLY (decl))
    return false;
  if (DECL_IN_SYSTEM_HEADER (decl))
    return false;

  return true;
}
示例#5
0
int
c_cannot_inline_tree_fn (tree *fnp)
{
  tree fn = *fnp;
  bool do_warning = (warn_inline
                     && DECL_INLINE (fn)
                     && DECL_DECLARED_INLINE_P (fn)
                     && !DECL_IN_SYSTEM_HEADER (fn));

  if (flag_really_no_inline
      && lookup_attribute ("always_inline", DECL_ATTRIBUTES (fn)) == NULL)
    {
      if (do_warning)
        warning (OPT_Winline, "function %q+F can never be inlined because it "
                 "is suppressed using -fno-inline", fn);
      goto cannot_inline;
    }

  /* Don't auto-inline anything that might not be bound within
     this unit of translation.  */
  if (!DECL_DECLARED_INLINE_P (fn) && !targetm.binds_local_p (fn))
    {
      if (do_warning)
        warning (OPT_Winline, "function %q+F can never be inlined because it "
                 "might not be bound within this unit of translation", fn);
      goto cannot_inline;
    }

  if (!function_attribute_inlinable_p (fn))
    {
      if (do_warning)
        warning (OPT_Winline, "function %q+F can never be inlined because it "
                 "uses attributes conflicting with inlining", fn);
      goto cannot_inline;
    }

  return 0;

 cannot_inline:
  DECL_UNINLINABLE (fn) = 1;
  return 1;
}
示例#6
0
void
print_node (FILE *file, const char *prefix, tree node, int indent)
{
    int hash;
    struct bucket *b;
    machine_mode mode;
    enum tree_code_class tclass;
    int len;
    int i;
    expanded_location xloc;
    enum tree_code code;

    if (node == 0)
        return;

    code = TREE_CODE (node);
    tclass = TREE_CODE_CLASS (code);

    /* Don't get too deep in nesting.  If the user wants to see deeper,
       it is easy to use the address of a lowest-level node
       as an argument in another call to debug_tree.  */

    if (indent > 24)
    {
        print_node_brief (file, prefix, node, indent);
        return;
    }

    if (indent > 8 && (tclass == tcc_type || tclass == tcc_declaration))
    {
        print_node_brief (file, prefix, node, indent);
        return;
    }

    /* It is unsafe to look at any other fields of an ERROR_MARK node.  */
    if (code == ERROR_MARK)
    {
        print_node_brief (file, prefix, node, indent);
        return;
    }

    /* Allow this function to be called if the table is not there.  */
    if (table)
    {
        hash = ((uintptr_t) node) % HASH_SIZE;

        /* If node is in the table, just mention its address.  */
        for (b = table[hash]; b; b = b->next)
            if (b->node == node)
            {
                print_node_brief (file, prefix, node, indent);
                return;
            }

        /* Add this node to the table.  */
        b = XNEW (struct bucket);
        b->node = node;
        b->next = table[hash];
        table[hash] = b;
    }

    /* Indent to the specified column, since this is the long form.  */
    indent_to (file, indent);

    /* Print the slot this node is in, and its code, and address.  */
    fprintf (file, "%s <%s", prefix, get_tree_code_name (code));
    dump_addr (file, " ", node);

    /* Print the name, if any.  */
    if (tclass == tcc_declaration)
    {
        if (DECL_NAME (node))
            fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
        else if (code == LABEL_DECL
                 && LABEL_DECL_UID (node) != -1)
        {
            if (dump_flags & TDF_NOUID)
                fprintf (file, " L.xxxx");
            else
                fprintf (file, " L.%d", (int) LABEL_DECL_UID (node));
        }
        else
        {
            if (dump_flags & TDF_NOUID)
                fprintf (file, " %c.xxxx", code == CONST_DECL ? 'C' : 'D');
            else
                fprintf (file, " %c.%u", code == CONST_DECL ? 'C' : 'D',
                         DECL_UID (node));
        }
    }
    else if (tclass == tcc_type)
    {
        if (TYPE_NAME (node))
        {
            if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
                fprintf (file, " %s", IDENTIFIER_POINTER (TYPE_NAME (node)));
            else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
                     && DECL_NAME (TYPE_NAME (node)))
                fprintf (file, " %s",
                         IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node))));
        }
    }
    if (code == IDENTIFIER_NODE)
        fprintf (file, " %s", IDENTIFIER_POINTER (node));

    if (code == INTEGER_CST)
    {
        if (indent <= 4)
            print_node_brief (file, "type", TREE_TYPE (node), indent + 4);
    }
    else if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
    {
        print_node (file, "type", TREE_TYPE (node), indent + 4);
        if (TREE_TYPE (node))
            indent_to (file, indent + 3);
    }

    if (!TYPE_P (node) && TREE_SIDE_EFFECTS (node))
        fputs (" side-effects", file);

    if (TYPE_P (node) ? TYPE_READONLY (node) : TREE_READONLY (node))
        fputs (" readonly", file);
    if (TYPE_P (node) && TYPE_ATOMIC (node))
        fputs (" atomic", file);
    if (!TYPE_P (node) && TREE_CONSTANT (node))
        fputs (" constant", file);
    else if (TYPE_P (node) && TYPE_SIZES_GIMPLIFIED (node))
        fputs (" sizes-gimplified", file);

    if (TYPE_P (node) && !ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (node)))
        fprintf (file, " address-space-%d", TYPE_ADDR_SPACE (node));

    if (TREE_ADDRESSABLE (node))
        fputs (" addressable", file);
    if (TREE_THIS_VOLATILE (node))
        fputs (" volatile", file);
    if (TREE_ASM_WRITTEN (node))
        fputs (" asm_written", file);
    if (TREE_USED (node))
        fputs (" used", file);
    if (TREE_NOTHROW (node))
        fputs (" nothrow", file);
    if (TREE_PUBLIC (node))
        fputs (" public", file);
    if (TREE_PRIVATE (node))
        fputs (" private", file);
    if (TREE_PROTECTED (node))
        fputs (" protected", file);
    if (TREE_STATIC (node))
        fputs (code == CALL_EXPR ? " must-tail-call" : " static", file);
    if (TREE_DEPRECATED (node))
        fputs (" deprecated", file);
    if (TREE_VISITED (node))
        fputs (" visited", file);

    if (code != TREE_VEC && code != INTEGER_CST && code != SSA_NAME)
    {
        if (TREE_LANG_FLAG_0 (node))
            fputs (" tree_0", file);
        if (TREE_LANG_FLAG_1 (node))
            fputs (" tree_1", file);
        if (TREE_LANG_FLAG_2 (node))
            fputs (" tree_2", file);
        if (TREE_LANG_FLAG_3 (node))
            fputs (" tree_3", file);
        if (TREE_LANG_FLAG_4 (node))
            fputs (" tree_4", file);
        if (TREE_LANG_FLAG_5 (node))
            fputs (" tree_5", file);
        if (TREE_LANG_FLAG_6 (node))
            fputs (" tree_6", file);
    }

    /* DECL_ nodes have additional attributes.  */

    switch (TREE_CODE_CLASS (code))
    {
    case tcc_declaration:
        if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
        {
            if (DECL_UNSIGNED (node))
                fputs (" unsigned", file);
            if (DECL_IGNORED_P (node))
                fputs (" ignored", file);
            if (DECL_ABSTRACT_P (node))
                fputs (" abstract", file);
            if (DECL_EXTERNAL (node))
                fputs (" external", file);
            if (DECL_NONLOCAL (node))
                fputs (" nonlocal", file);
        }
        if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
        {
            if (DECL_WEAK (node))
                fputs (" weak", file);
            if (DECL_IN_SYSTEM_HEADER (node))
                fputs (" in_system_header", file);
        }
        if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL)
                && code != LABEL_DECL
                && code != FUNCTION_DECL
                && DECL_REGISTER (node))
            fputs (" regdecl", file);

        if (code == TYPE_DECL && TYPE_DECL_SUPPRESS_DEBUG (node))
            fputs (" suppress-debug", file);

        if (code == FUNCTION_DECL
                && DECL_FUNCTION_SPECIFIC_TARGET (node))
            fputs (" function-specific-target", file);
        if (code == FUNCTION_DECL
                && DECL_FUNCTION_SPECIFIC_OPTIMIZATION (node))
            fputs (" function-specific-opt", file);
        if (code == FUNCTION_DECL && DECL_DECLARED_INLINE_P (node))
            fputs (" autoinline", file);
        if (code == FUNCTION_DECL && DECL_BUILT_IN (node))
            fputs (" built-in", file);
        if (code == FUNCTION_DECL && DECL_STATIC_CHAIN (node))
            fputs (" static-chain", file);
        if (TREE_CODE (node) == FUNCTION_DECL && decl_is_tm_clone (node))
            fputs (" tm-clone", file);

        if (code == FIELD_DECL && DECL_PACKED (node))
            fputs (" packed", file);
        if (code == FIELD_DECL && DECL_BIT_FIELD (node))
            fputs (" bit-field", file);
        if (code == FIELD_DECL && DECL_NONADDRESSABLE_P (node))
            fputs (" nonaddressable", file);

        if (code == LABEL_DECL && EH_LANDING_PAD_NR (node))
            fprintf (file, " landing-pad:%d", EH_LANDING_PAD_NR (node));

        if (code == VAR_DECL && DECL_IN_TEXT_SECTION (node))
            fputs (" in-text-section", file);
        if (code == VAR_DECL && DECL_IN_CONSTANT_POOL (node))
            fputs (" in-constant-pool", file);
        if (code == VAR_DECL && DECL_COMMON (node))
            fputs (" common", file);
        if (code == VAR_DECL && DECL_THREAD_LOCAL_P (node))
        {
            fputs (" ", file);
            fputs (tls_model_names[DECL_TLS_MODEL (node)], file);
        }

        if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
        {
            if (DECL_VIRTUAL_P (node))
                fputs (" virtual", file);
            if (DECL_PRESERVE_P (node))
                fputs (" preserve", file);
            if (DECL_LANG_FLAG_0 (node))
                fputs (" decl_0", file);
            if (DECL_LANG_FLAG_1 (node))
                fputs (" decl_1", file);
            if (DECL_LANG_FLAG_2 (node))
                fputs (" decl_2", file);
            if (DECL_LANG_FLAG_3 (node))
                fputs (" decl_3", file);
            if (DECL_LANG_FLAG_4 (node))
                fputs (" decl_4", file);
            if (DECL_LANG_FLAG_5 (node))
                fputs (" decl_5", file);
            if (DECL_LANG_FLAG_6 (node))
                fputs (" decl_6", file);
            if (DECL_LANG_FLAG_7 (node))
                fputs (" decl_7", file);

            mode = DECL_MODE (node);
            fprintf (file, " %s", GET_MODE_NAME (mode));
        }

        if ((code == VAR_DECL || code == PARM_DECL || code == RESULT_DECL)
                && DECL_BY_REFERENCE (node))
            fputs (" passed-by-reference", file);

        if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)  && DECL_DEFER_OUTPUT (node))
            fputs (" defer-output", file);


        xloc = expand_location (DECL_SOURCE_LOCATION (node));
        fprintf (file, " file %s line %d col %d", xloc.file, xloc.line,
                 xloc.column);

        if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
        {
            print_node (file, "size", DECL_SIZE (node), indent + 4);
            print_node (file, "unit size", DECL_SIZE_UNIT (node), indent + 4);

            if (code != FUNCTION_DECL || DECL_BUILT_IN (node))
                indent_to (file, indent + 3);

            if (DECL_USER_ALIGN (node))
                fprintf (file, " user");

            fprintf (file, " align %d", DECL_ALIGN (node));
            if (code == FIELD_DECL)
                fprintf (file, " offset_align " HOST_WIDE_INT_PRINT_UNSIGNED,
                         DECL_OFFSET_ALIGN (node));

            if (code == FUNCTION_DECL && DECL_BUILT_IN (node))
            {
                if (DECL_BUILT_IN_CLASS (node) == BUILT_IN_MD)
                    fprintf (file, " built-in BUILT_IN_MD %d", DECL_FUNCTION_CODE (node));
                else
                    fprintf (file, " built-in %s:%s",
                             built_in_class_names[(int) DECL_BUILT_IN_CLASS (node)],
                             built_in_names[(int) DECL_FUNCTION_CODE (node)]);
            }
        }
        if (code == FIELD_DECL)
        {
            print_node (file, "offset", DECL_FIELD_OFFSET (node), indent + 4);
            print_node (file, "bit offset", DECL_FIELD_BIT_OFFSET (node),
                        indent + 4);
            if (DECL_BIT_FIELD_TYPE (node))
                print_node (file, "bit_field_type", DECL_BIT_FIELD_TYPE (node),
                            indent + 4);
        }

        print_node_brief (file, "context", DECL_CONTEXT (node), indent + 4);

        if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
        {
            print_node_brief (file, "attributes",
                              DECL_ATTRIBUTES (node), indent + 4);
            if (code != PARM_DECL)
                print_node_brief (file, "initial", DECL_INITIAL (node),
                                  indent + 4);
        }
        if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
        {
            print_node_brief (file, "abstract_origin",
                              DECL_ABSTRACT_ORIGIN (node), indent + 4);
        }
        if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
        {
            print_node (file, "result", DECL_RESULT_FLD (node), indent + 4);
        }

        lang_hooks.print_decl (file, node, indent);

        if (DECL_RTL_SET_P (node))
        {
            indent_to (file, indent + 4);
            print_rtl (file, DECL_RTL (node));
        }

        if (code == PARM_DECL)
        {
            print_node (file, "arg-type", DECL_ARG_TYPE (node), indent + 4);

            if (DECL_INCOMING_RTL (node) != 0)
            {
                indent_to (file, indent + 4);
                fprintf (file, "incoming-rtl ");
                print_rtl (file, DECL_INCOMING_RTL (node));
            }
        }
        else if (code == FUNCTION_DECL
                 && DECL_STRUCT_FUNCTION (node) != 0)
        {
            print_node (file, "arguments", DECL_ARGUMENTS (node), indent + 4);
            indent_to (file, indent + 4);
            dump_addr (file, "struct-function ", DECL_STRUCT_FUNCTION (node));
        }

        if ((code == VAR_DECL || code == PARM_DECL)
                && DECL_HAS_VALUE_EXPR_P (node))
            print_node (file, "value-expr", DECL_VALUE_EXPR (node), indent + 4);

        /* Print the decl chain only if decl is at second level.  */
        if (indent == 4)
            print_node (file, "chain", TREE_CHAIN (node), indent + 4);
        else
            print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
        break;

    case tcc_type:
        if (TYPE_UNSIGNED (node))
            fputs (" unsigned", file);

        if (TYPE_NO_FORCE_BLK (node))
            fputs (" no-force-blk", file);

        if (TYPE_STRING_FLAG (node))
            fputs (" string-flag", file);

        if (TYPE_NEEDS_CONSTRUCTING (node))
            fputs (" needs-constructing", file);

        if ((code == RECORD_TYPE
                || code == UNION_TYPE
                || code == QUAL_UNION_TYPE
                || code == ARRAY_TYPE)
                && TYPE_REVERSE_STORAGE_ORDER (node))
            fputs (" reverse-storage-order", file);

        /* The transparent-union flag is used for different things in
        different nodes.  */
        if ((code == UNION_TYPE || code == RECORD_TYPE)
                && TYPE_TRANSPARENT_AGGR (node))
            fputs (" transparent-aggr", file);
        else if (code == ARRAY_TYPE
                 && TYPE_NONALIASED_COMPONENT (node))
            fputs (" nonaliased-component", file);

        if (TYPE_PACKED (node))
            fputs (" packed", file);

        if (TYPE_RESTRICT (node))
            fputs (" restrict", file);

        if (TYPE_LANG_FLAG_0 (node))
            fputs (" type_0", file);
        if (TYPE_LANG_FLAG_1 (node))
            fputs (" type_1", file);
        if (TYPE_LANG_FLAG_2 (node))
            fputs (" type_2", file);
        if (TYPE_LANG_FLAG_3 (node))
            fputs (" type_3", file);
        if (TYPE_LANG_FLAG_4 (node))
            fputs (" type_4", file);
        if (TYPE_LANG_FLAG_5 (node))
            fputs (" type_5", file);
        if (TYPE_LANG_FLAG_6 (node))
            fputs (" type_6", file);
        if (TYPE_LANG_FLAG_7 (node))
            fputs (" type_7", file);

        mode = TYPE_MODE (node);
        fprintf (file, " %s", GET_MODE_NAME (mode));

        print_node (file, "size", TYPE_SIZE (node), indent + 4);
        print_node (file, "unit size", TYPE_SIZE_UNIT (node), indent + 4);
        indent_to (file, indent + 3);

        if (TYPE_USER_ALIGN (node))
            fprintf (file, " user");

        fprintf (file, " align %d symtab %d alias set " HOST_WIDE_INT_PRINT_DEC,
                 TYPE_ALIGN (node), TYPE_SYMTAB_ADDRESS (node),
                 (HOST_WIDE_INT) TYPE_ALIAS_SET (node));

        if (TYPE_STRUCTURAL_EQUALITY_P (node))
            fprintf (file, " structural equality");
        else
            dump_addr (file, " canonical type ", TYPE_CANONICAL (node));

        print_node (file, "attributes", TYPE_ATTRIBUTES (node), indent + 4);

        if (INTEGRAL_TYPE_P (node) || code == REAL_TYPE
                || code == FIXED_POINT_TYPE)
        {
            fprintf (file, " precision %d", TYPE_PRECISION (node));
            print_node_brief (file, "min", TYPE_MIN_VALUE (node), indent + 4);
            print_node_brief (file, "max", TYPE_MAX_VALUE (node), indent + 4);
        }

        if (code == ENUMERAL_TYPE)
            print_node (file, "values", TYPE_VALUES (node), indent + 4);
        else if (code == ARRAY_TYPE)
            print_node (file, "domain", TYPE_DOMAIN (node), indent + 4);
        else if (code == VECTOR_TYPE)
            fprintf (file, " nunits %d", (int) TYPE_VECTOR_SUBPARTS (node));
        else if (code == RECORD_TYPE
                 || code == UNION_TYPE
                 || code == QUAL_UNION_TYPE)
            print_node (file, "fields", TYPE_FIELDS (node), indent + 4);
        else if (code == FUNCTION_TYPE
                 || code == METHOD_TYPE)
        {
            if (TYPE_METHOD_BASETYPE (node))
                print_node_brief (file, "method basetype",
                                  TYPE_METHOD_BASETYPE (node), indent + 4);
            print_node (file, "arg-types", TYPE_ARG_TYPES (node), indent + 4);
        }
        else if (code == OFFSET_TYPE)
            print_node_brief (file, "basetype", TYPE_OFFSET_BASETYPE (node),
                              indent + 4);

        if (TYPE_CONTEXT (node))
            print_node_brief (file, "context", TYPE_CONTEXT (node), indent + 4);

        lang_hooks.print_type (file, node, indent);

        if (TYPE_POINTER_TO (node) || TREE_CHAIN (node))
            indent_to (file, indent + 3);

        print_node_brief (file, "pointer_to_this", TYPE_POINTER_TO (node),
                          indent + 4);
        print_node_brief (file, "reference_to_this", TYPE_REFERENCE_TO (node),
                          indent + 4);
        print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
        break;

    case tcc_expression:
    case tcc_comparison:
    case tcc_unary:
    case tcc_binary:
    case tcc_reference:
    case tcc_statement:
    case tcc_vl_exp:
        if (code == BIND_EXPR)
        {
            print_node (file, "vars", TREE_OPERAND (node, 0), indent + 4);
            print_node (file, "body", TREE_OPERAND (node, 1), indent + 4);
            print_node (file, "block", TREE_OPERAND (node, 2), indent + 4);
            break;
        }
        if (code == CALL_EXPR)
        {
            call_expr_arg_iterator iter;
            tree arg;
            print_node (file, "fn", CALL_EXPR_FN (node), indent + 4);
            print_node (file, "static_chain", CALL_EXPR_STATIC_CHAIN (node),
                        indent + 4);
            i = 0;
            FOR_EACH_CALL_EXPR_ARG (arg, iter, node)
            {
                char temp[10];
                sprintf (temp, "arg %d", i);
                print_node (file, temp, arg, indent + 4);
                i++;
            }
        }
示例#7
0
文件: c-common.c 项目: wacke/g21k
void
declare_function_name ()
{
  tree decl, type, init;
  char *name, *printable_name;
  int len;

  if (current_function_decl == NULL)
    {
      name = "";
      printable_name = "top level";
    }
  else
    {
      char *kind = "function";
      if (TREE_CODE (TREE_TYPE (current_function_decl)) == METHOD_TYPE)
	kind = "method";
      /* Allow functions to be nameless (such as artificial ones).  */
      if (DECL_NAME (current_function_decl))
        name = IDENTIFIER_POINTER (DECL_NAME (current_function_decl));
      else
	name = "";
      printable_name = (*decl_printable_name) (current_function_decl, &kind);
    }

  /* If the default size of char arrays isn't big enough for the name,
     make a bigger one.  */
  len = strlen (name) + 1;
  type = char_array_type_node;
  if (TREE_INT_CST_LOW (TYPE_MAX_VALUE (TREE_TYPE (char_array_type_node)))
      < len)
    type = build_array_type (char_type_node,
			     build_index_type (build_int_2 (len, 0)));

  push_obstacks_nochange ();
  decl = build_decl (VAR_DECL, get_identifier ("__FUNCTION__"), type);
  TREE_STATIC (decl) = 1;
  TREE_READONLY (decl) = 1;
  DECL_SOURCE_LINE (decl) = 0;
  DECL_IN_SYSTEM_HEADER (decl) = 1;
  DECL_IGNORED_P (decl) = 1;
  init = build_string (len, name);
  TREE_TYPE (init) = type;
  DECL_INITIAL (decl) = init;
  finish_decl (pushdecl (decl), init, NULL_TREE);

  len = strlen (printable_name) + 1;
  type = char_array_type_node;
  if (TREE_INT_CST_LOW (TYPE_MAX_VALUE (TREE_TYPE (char_array_type_node)))
      < len)
    type = build_array_type (char_type_node,
			     build_index_type (build_int_2 (len, 0)));

  push_obstacks_nochange ();
  decl = build_decl (VAR_DECL, get_identifier ("__PRETTY_FUNCTION__"), type);
  TREE_STATIC (decl) = 1;
  TREE_READONLY (decl) = 1;
  DECL_SOURCE_LINE (decl) = 0;
  DECL_IN_SYSTEM_HEADER (decl) = 1;
  DECL_IGNORED_P (decl) = 1;
  init = build_string (len, printable_name);
  TREE_TYPE (init) = type;
  DECL_INITIAL (decl) = init;
  finish_decl (pushdecl (decl), init, NULL_TREE);
}
示例#8
0
int
c_cannot_inline_tree_fn (tree *fnp)
{
  tree fn = *fnp;
  tree t;
  bool do_warning = (warn_inline
		     && DECL_INLINE (fn)
		     && DECL_DECLARED_INLINE_P (fn)
		     && !DECL_IN_SYSTEM_HEADER (fn));

  if (flag_really_no_inline
      && lookup_attribute ("always_inline", DECL_ATTRIBUTES (fn)) == NULL)
    {
      if (do_warning)
	warning ("%Jfunction '%F' can never be inlined because it "
		 "is suppressed using -fno-inline", fn, fn);
      goto cannot_inline;
    }

  /* Don't auto-inline anything that might not be bound within
     this unit of translation.  */
  if (!DECL_DECLARED_INLINE_P (fn) && !(*targetm.binds_local_p) (fn))
    {
      if (do_warning)
	warning ("%Jfunction '%F' can never be inlined because it might not "
		 "be bound within this unit of translation", fn, fn);
      goto cannot_inline;
    }

  if (! function_attribute_inlinable_p (fn))
    {
      if (do_warning)
	warning ("%Jfunction '%F' can never be inlined because it uses "
		 "attributes conflicting with inlining", fn, fn);
      goto cannot_inline;
    }

  /* If a function has pending sizes, we must not defer its
     compilation, and we can't inline it as a tree.  */
  if (fn == current_function_decl)
    {
      t = get_pending_sizes ();
      put_pending_sizes (t);

      if (t)
	{
	  if (do_warning)
	    warning ("%Jfunction '%F' can never be inlined because it has "
		     "pending sizes", fn, fn);
	  goto cannot_inline;
	}
    }

  if (! DECL_FILE_SCOPE_P (fn))
    {
      /* If a nested function has pending sizes, we may have already
         saved them.  */
      if (DECL_LANG_SPECIFIC (fn)->pending_sizes)
	{
	  if (do_warning)
	    warning ("%Jnested function '%F' can never be inlined because it "
		     "has possibly saved pending sizes", fn, fn);
	  goto cannot_inline;
	}
    }

  return 0;

 cannot_inline:
  DECL_UNINLINABLE (fn) = 1;
  return 1;
}