static void
unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
{
  DECL_DEFER_OUTPUT (expr) = (unsigned) bp_unpack_value (bp, 1);
  DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
  DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
  DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
  DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp,  1);
  DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp,  1);
  DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp,  2);
  DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp,  1);

  if (TREE_CODE (expr) == VAR_DECL)
    {
      DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
      DECL_IN_TEXT_SECTION (expr) = (unsigned) bp_unpack_value (bp, 1);
      DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
      DECL_TLS_MODEL (expr) = (enum tls_model) bp_unpack_value (bp,  3);
    }

  if (VAR_OR_FUNCTION_DECL_P (expr))
    {
      priority_type p;
      p = (priority_type) bp_unpack_var_len_unsigned (bp);
      SET_DECL_INIT_PRIORITY (expr, p);
    }
}
// llvm_emit_code_for_current_function - Top level interface for emitting a
// function to the .s file.
void llvm_emit_code_for_current_function(tree fndecl) {
  if (cfun->nonlocal_goto_save_area)
    sorry("%Jnon-local gotos not supported by LLVM", fndecl);

  if (errorcount || sorrycount) {
    TREE_ASM_WRITTEN(fndecl) = 1;
    return;  // Do not process broken code.
  }
  timevar_push(TV_LLVM_FUNCS);

  // Convert the AST to raw/ugly LLVM code.
  Function *Fn;
  {
    TreeToLLVM Emitter(fndecl);

    // Set up parameters and prepare for return, for the function.
    Emitter.StartFunctionBody();
    
    // Emit the body of the function.
    Emitter.Emit(DECL_SAVED_TREE(fndecl), 0);
  
    // Wrap things up.
    Fn = Emitter.FinishFunctionBody();
  }

#if 0
  if (dump_file) {
    fprintf (dump_file,
             "\n\n;;\n;; Full LLVM generated for this function:\n;;\n");
    Fn->dump();
  }
#endif
  
  if (PerFunctionPasses)
    PerFunctionPasses->run(*Fn);
  
  // TODO: Nuke the .ll code for the function at -O[01] if we don't want to
  // inline it or something else.
  
  // There's no need to defer outputting this function any more; we
  // know we want to output it.
  DECL_DEFER_OUTPUT(fndecl) = 0;
  
  // Finally, we have written out this function!
  TREE_ASM_WRITTEN(fndecl) = 1;
  timevar_pop(TV_LLVM_FUNCS);
}
static void
pack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
{
  bp_pack_value (bp, DECL_DEFER_OUTPUT (expr), 1);
  bp_pack_value (bp, DECL_COMMON (expr), 1);
  bp_pack_value (bp, DECL_DLLIMPORT_P (expr), 1);
  bp_pack_value (bp, DECL_WEAK (expr), 1);
  bp_pack_value (bp, DECL_SEEN_IN_BIND_EXPR_P (expr),  1);
  bp_pack_value (bp, DECL_COMDAT (expr),  1);
  bp_pack_value (bp, DECL_VISIBILITY (expr),  2);
  bp_pack_value (bp, DECL_VISIBILITY_SPECIFIED (expr),  1);

  if (TREE_CODE (expr) == VAR_DECL)
    {
      bp_pack_value (bp, DECL_HARD_REGISTER (expr), 1);
      bp_pack_value (bp, DECL_IN_TEXT_SECTION (expr), 1);
      bp_pack_value (bp, DECL_IN_CONSTANT_POOL (expr), 1);
      bp_pack_value (bp, DECL_TLS_MODEL (expr),  3);
    }

  if (VAR_OR_FUNCTION_DECL_P (expr))
    bp_pack_var_len_unsigned (bp, DECL_INIT_PRIORITY (expr));
}
Example #4
0
static tree
build_common_decl (gfc_common_head *com, tree union_type, bool is_init)
{
  gfc_symbol *common_sym;
  tree decl;

  /* Create a namespace to store symbols for common blocks.  */
  if (gfc_common_ns == NULL)
    gfc_common_ns = gfc_get_namespace (NULL, 0);

  gfc_get_symbol (com->name, gfc_common_ns, &common_sym);
  decl = common_sym->backend_decl;

  /* Update the size of this common block as needed.  */
  if (decl != NULL_TREE)
    {
      tree size = TYPE_SIZE_UNIT (union_type);

      /* Named common blocks of the same name shall be of the same size
	 in all scoping units of a program in which they appear, but
	 blank common blocks may be of different sizes.  */
      if (!tree_int_cst_equal (DECL_SIZE_UNIT (decl), size)
	  && strcmp (com->name, BLANK_COMMON_NAME))
	gfc_warning ("Named COMMON block '%s' at %L shall be of the "
		     "same size as elsewhere (%lu vs %lu bytes)", com->name,
		     &com->where,
		     (unsigned long) TREE_INT_CST_LOW (size),
		     (unsigned long) TREE_INT_CST_LOW (DECL_SIZE_UNIT (decl)));

      if (tree_int_cst_lt (DECL_SIZE_UNIT (decl), size))
	{
	  DECL_SIZE (decl) = TYPE_SIZE (union_type);
	  DECL_SIZE_UNIT (decl) = size;
	  DECL_MODE (decl) = TYPE_MODE (union_type);
	  TREE_TYPE (decl) = union_type;
	  layout_decl (decl, 0);
	}
     }

  /* If this common block has been declared in a previous program unit,
     and either it is already initialized or there is no new initialization
     for it, just return.  */
  if ((decl != NULL_TREE) && (!is_init || DECL_INITIAL (decl)))
    return decl;

  /* If there is no backend_decl for the common block, build it.  */
  if (decl == NULL_TREE)
    {
      decl = build_decl (input_location,
			 VAR_DECL, get_identifier (com->name), union_type);
      gfc_set_decl_assembler_name (decl, gfc_sym_mangled_common_id (com));
      TREE_PUBLIC (decl) = 1;
      TREE_STATIC (decl) = 1;
      DECL_IGNORED_P (decl) = 1;
      if (!com->is_bind_c)
	DECL_ALIGN (decl) = BIGGEST_ALIGNMENT;
      else
        {
	  /* Do not set the alignment for bind(c) common blocks to
	     BIGGEST_ALIGNMENT because that won't match what C does.  Also,
	     for common blocks with one element, the alignment must be
	     that of the field within the common block in order to match
	     what C will do.  */
	  tree field = NULL_TREE;
	  field = TYPE_FIELDS (TREE_TYPE (decl));
	  if (DECL_CHAIN (field) == NULL_TREE)
	    DECL_ALIGN (decl) = TYPE_ALIGN (TREE_TYPE (field));
	}
      DECL_USER_ALIGN (decl) = 0;
      GFC_DECL_COMMON_OR_EQUIV (decl) = 1;

      gfc_set_decl_location (decl, &com->where);

      if (com->threadprivate)
	DECL_TLS_MODEL (decl) = decl_default_tls_model (decl);

      /* Place the back end declaration for this common block in
         GLOBAL_BINDING_LEVEL.  */
      common_sym->backend_decl = pushdecl_top_level (decl);
    }

  /* Has no initial values.  */
  if (!is_init)
    {
      DECL_INITIAL (decl) = NULL_TREE;
      DECL_COMMON (decl) = 1;
      DECL_DEFER_OUTPUT (decl) = 1;
    }
  else
    {
      DECL_INITIAL (decl) = error_mark_node;
      DECL_COMMON (decl) = 0;
      DECL_DEFER_OUTPUT (decl) = 0;
    }
  return decl;
}
Example #5
0
void
rest_of_decl_compilation (tree decl,
			  int top_level,
			  int at_end)
{
  /* We deferred calling assemble_alias so that we could collect
     other attributes such as visibility.  Emit the alias now.  */
  {
    tree alias;
    alias = lookup_attribute ("alias", DECL_ATTRIBUTES (decl));
    if (alias)
      {
	alias = TREE_VALUE (TREE_VALUE (alias));
	alias = get_identifier (TREE_STRING_POINTER (alias));
	assemble_alias (decl, alias);
      }
  }

  /* Emit tm_* attributes for declarations now */
  {
    tree tm_attribute;
    tm_attribute = lookup_attribute ("tm_wrapper", DECL_ATTRIBUTES (decl));
    if (tm_attribute == NULL)
      tm_attribute = lookup_attribute ("transaction_wrap", DECL_ATTRIBUTES (decl));
    if (tm_attribute) {
      tm_attribute = TREE_VALUE (TREE_VALUE (tm_attribute));
      tm_attribute = get_identifier (TREE_STRING_POINTER (tm_attribute));
      assemble_tm_wrapper (decl, tm_attribute);
    }
    
    if (has_tm_pure_attribute(decl)) {
      assemble_tm_pure (decl);
    }

    if (has_tm_callable_attribute(decl)) {
      assemble_tm_callable (decl);
    }

  }

  /* Can't defer this, because it needs to happen before any
     later function definitions are processed.  */
  if (DECL_ASSEMBLER_NAME_SET_P (decl) && DECL_REGISTER (decl))
    /* LLVM LOCAL begin */
#ifndef ENABLE_LLVM
    make_decl_rtl (decl);
#else
    make_decl_llvm (decl);
#endif
    /* LLVM LOCAL end */

  /* Forward declarations for nested functions are not "external",
     but we need to treat them as if they were.  */
  if (TREE_STATIC (decl) || DECL_EXTERNAL (decl)
      || TREE_CODE (decl) == FUNCTION_DECL)
    {
      timevar_push (TV_VARCONST);

      /* Don't output anything when a tentative file-scope definition
	 is seen.  But at end of compilation, do output code for them.

	 We do output all variables when unit-at-a-time is active and rely on
	 callgraph code to defer them except for forward declarations
	 (see gcc.c-torture/compile/920624-1.c) */
      if ((at_end
	   || !DECL_DEFER_OUTPUT (decl)
	   || DECL_INITIAL (decl))
	  && !DECL_EXTERNAL (decl))
	{
	  if (TREE_CODE (decl) != FUNCTION_DECL)
	    cgraph_varpool_finalize_decl (decl);
	  else
	    assemble_variable (decl, top_level, at_end, 0);
	}

#ifdef ASM_FINISH_DECLARE_OBJECT
      if (decl == last_assemble_variable_decl)
	{
	  ASM_FINISH_DECLARE_OBJECT (asm_out_file, decl,
				     top_level, at_end);
	}
#endif

      timevar_pop (TV_VARCONST);
    }
  else if (TREE_CODE (decl) == TYPE_DECL
	   /* Like in rest_of_type_compilation, avoid confusing the debug
	      information machinery when there are errors.  */
	   && !(sorrycount || errorcount))
    {
    /* LLVM LOCAL begin */
#ifndef ENABLE_LLVM
      timevar_push (TV_SYMOUT);
      debug_hooks->type_decl (decl, !top_level);
      timevar_pop (TV_SYMOUT);
#else
      llvm_emit_typedef (decl);
#endif
    /* LLVM LOCAL end */
    }

  /* Let cgraph know about the existence of variables.  */
  if (TREE_CODE (decl) == VAR_DECL && !DECL_EXTERNAL (decl))
    cgraph_varpool_node (decl);
}
Example #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++;
            }
        }
Example #7
0
void
rest_of_decl_compilation (tree decl,
			  int top_level,
			  int at_end)
{
  /* We deferred calling assemble_alias so that we could collect
     other attributes such as visibility.  Emit the alias now.  */
  {
    tree alias;
    alias = lookup_attribute ("alias", DECL_ATTRIBUTES (decl));
    if (alias)
      {
	alias = TREE_VALUE (TREE_VALUE (alias));
	alias = get_identifier (TREE_STRING_POINTER (alias));
	assemble_alias (decl, alias);
#ifdef KEY
	// Put aliases into the list of decls emitted by g++ so that we can
	// iterate through the list when expanding aliases to WHIRL.  An alias
	// can be expanded only if its target, which can be another alias, is
	// expanded.  Bug 4393.
	if (flag_spin_file)
	  gspin_gxx_emits_decl(decl);
#endif
      }
  }

  /* Can't defer this, because it needs to happen before any
     later function definitions are processed.  */
  if (DECL_ASSEMBLER_NAME_SET_P (decl) && DECL_REGISTER (decl))
    make_decl_rtl (decl);

  /* Forward declarations for nested functions are not "external",
     but we need to treat them as if they were.  */
  if (TREE_STATIC (decl) || DECL_EXTERNAL (decl)
      || TREE_CODE (decl) == FUNCTION_DECL)
    {
      timevar_push (TV_VARCONST);

      /* Don't output anything when a tentative file-scope definition
	 is seen.  But at end of compilation, do output code for them.

	 We do output all variables when unit-at-a-time is active and rely on
	 callgraph code to defer them except for forward declarations
	 (see gcc.c-torture/compile/920624-1.c) */
      if ((at_end
	   || !DECL_DEFER_OUTPUT (decl)
	   || DECL_INITIAL (decl))
	  && !DECL_EXTERNAL (decl))
	{
	  if (TREE_CODE (decl) != FUNCTION_DECL)
	    cgraph_varpool_finalize_decl (decl);
	  else
	    assemble_variable (decl, top_level, at_end, 0);
	}

#ifdef ASM_FINISH_DECLARE_OBJECT
      if (decl == last_assemble_variable_decl)
	{
	  ASM_FINISH_DECLARE_OBJECT (asm_out_file, decl,
				     top_level, at_end);
	}
#endif

      timevar_pop (TV_VARCONST);
    }
  else if (TREE_CODE (decl) == TYPE_DECL
	   /* Like in rest_of_type_compilation, avoid confusing the debug
	      information machinery when there are errors.  */
	   && !(sorrycount || errorcount))
    {
      timevar_push (TV_SYMOUT);
      debug_hooks->type_decl (decl, !top_level);
      timevar_pop (TV_SYMOUT);
    }

  /* Let cgraph know about the existence of variables.  */
  if (TREE_CODE (decl) == VAR_DECL && !DECL_EXTERNAL (decl))
    cgraph_varpool_node (decl);
}
Example #8
0
static void
tree_expand_cfg (void)
{
  basic_block bb, init_block;
  sbitmap blocks;

  /* Some backends want to know that we are expanding to RTL.  */
  currently_expanding_to_rtl = 1;

  /* Prepare the rtl middle end to start recording block changes.  */
  reset_block_changes ();

  /* Expand the variables recorded during gimple lowering.  */
  expand_used_vars ();

#ifdef KEY
  // Run expand_used_vars above to set DECL_SECTION_NAME.  Bug 10876.
  if (flag_spin_file)
    return;
#endif

  /* Set up parameters and prepare for return, for the function.  */
  expand_function_start (current_function_decl);

  /* If this function is `main', emit a call to `__main'
     to run global initializers, etc.  */
  if (DECL_NAME (current_function_decl)
      && MAIN_NAME_P (DECL_NAME (current_function_decl))
      && DECL_FILE_SCOPE_P (current_function_decl))
    expand_main_function ();

  /* Register rtl specific functions for cfg.  */
  rtl_register_cfg_hooks ();

  init_block = construct_init_block ();

  FOR_BB_BETWEEN (bb, init_block->next_bb, EXIT_BLOCK_PTR, next_bb)
    bb = expand_gimple_basic_block (bb, dump_file);

  construct_exit_block ();

  /* We're done expanding trees to RTL.  */
  currently_expanding_to_rtl = 0;

  /* Convert tree EH labels to RTL EH labels, and clean out any unreachable
     EH regions.  */
  convert_from_eh_region_ranges ();

  rebuild_jump_labels (get_insns ());
  find_exception_handler_labels ();

  blocks = sbitmap_alloc (last_basic_block);
  sbitmap_ones (blocks);
  find_many_sub_basic_blocks (blocks);
  purge_all_dead_edges (0);
  sbitmap_free (blocks);

  compact_blocks ();
#ifdef ENABLE_CHECKING
  verify_flow_info();
#endif

  /* There's no need to defer outputting this function any more; we
     know we want to output it.  */
  DECL_DEFER_OUTPUT (current_function_decl) = 0;

  /* Now that we're done expanding trees to RTL, we shouldn't have any
     more CONCATs anywhere.  */
  generating_concat_p = 0;

  finalize_block_changes ();

  if (dump_file)
    {
      fprintf (dump_file,
	       "\n\n;;\n;; Full RTL generated for this function:\n;;\n");
      /* And the pass manager will dump RTL for us.  */
    }
}
Example #9
0
static tree
build_common_decl (gfc_common_head *com, tree union_type, bool is_init)
{
  gfc_symbol *common_sym;
  tree decl;

  /* Create a namespace to store symbols for common blocks.  */
  if (gfc_common_ns == NULL)
    gfc_common_ns = gfc_get_namespace (NULL);

  gfc_get_symbol (com->name, gfc_common_ns, &common_sym);
  decl = common_sym->backend_decl;

  /* Update the size of this common block as needed.  */
  if (decl != NULL_TREE)
    {
      tree size = TYPE_SIZE_UNIT (union_type);
      if (tree_int_cst_lt (DECL_SIZE_UNIT (decl), size))
        {
          /* Named common blocks of the same name shall be of the same size
             in all scoping units of a program in which they appear, but
             blank common blocks may be of different sizes.  */
          if (strcmp (com->name, BLANK_COMMON_NAME))
	    gfc_warning ("Named COMMON block '%s' at %L shall be of the "
			 "same size", com->name, &com->where);
          DECL_SIZE_UNIT (decl) = size;
        }
     }

  /* If this common block has been declared in a previous program unit,
     and either it is already initialized or there is no new initialization
     for it, just return.  */
  if ((decl != NULL_TREE) && (!is_init || DECL_INITIAL (decl)))
    return decl;

  /* If there is no backend_decl for the common block, build it.  */
  if (decl == NULL_TREE)
    {
      decl = build_decl (VAR_DECL, get_identifier (com->name), union_type);
      SET_DECL_ASSEMBLER_NAME (decl, gfc_sym_mangled_common_id (com->name));
      TREE_PUBLIC (decl) = 1;
      TREE_STATIC (decl) = 1;
      DECL_ALIGN (decl) = BIGGEST_ALIGNMENT;
      DECL_USER_ALIGN (decl) = 0;

      gfc_set_decl_location (decl, &com->where);

      /* Place the back end declaration for this common block in
         GLOBAL_BINDING_LEVEL.  */
      common_sym->backend_decl = pushdecl_top_level (decl);
    }

  /* Has no initial values.  */
  if (!is_init)
    {
      DECL_INITIAL (decl) = NULL_TREE;
      DECL_COMMON (decl) = 1;
      DECL_DEFER_OUTPUT (decl) = 1;
    }
  else
    {
      DECL_INITIAL (decl) = error_mark_node;
      DECL_COMMON (decl) = 0;
      DECL_DEFER_OUTPUT (decl) = 0;
    }
  return decl;
}