151 lines
6.1 KiB
HTML
151 lines
6.1 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2016 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Funding Free Software", the Front-Cover
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Texts being (a) (see below), and with the Back-Cover Texts being (b)
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(see below). A copy of the license is included in the section entitled
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"GNU Free Documentation License".
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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software. Copies published by the Free Software Foundation raise
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funds for GNU development. -->
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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>GNU Compiler Collection (GCC) Internals: Current structure hierarchy</title>
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<meta name="description" content="GNU Compiler Collection (GCC) Internals: Current structure hierarchy">
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<meta name="keywords" content="GNU Compiler Collection (GCC) Internals: Current structure hierarchy">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Internal-structure.html#Internal-structure" rel="up" title="Internal structure">
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<link href="Adding-new-DECL-node-types.html#Adding-new-DECL-node-types" rel="next" title="Adding new DECL node types">
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<link href="Internal-structure.html#Internal-structure" rel="prev" title="Internal structure">
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<style type="text/css">
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ul.no-bullet {list-style: none}
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-->
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</style>
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</head>
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="Current-structure-hierarchy"></a>
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<div class="header">
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<p>
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Next: <a href="Adding-new-DECL-node-types.html#Adding-new-DECL-node-types" accesskey="n" rel="next">Adding new DECL node types</a>, Up: <a href="Internal-structure.html#Internal-structure" accesskey="u" rel="up">Internal structure</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Current-structure-hierarchy-1"></a>
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<h4 class="subsubsection">10.4.2.1 Current structure hierarchy</h4>
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<dl compact="compact">
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<dt><code>struct tree_decl_minimal</code></dt>
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<dd><p>This is the minimal structure to inherit from in order for common
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<code>DECL</code> macros to work. The fields it contains are a unique ID,
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source location, context, and name.
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</p>
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</dd>
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<dt><code>struct tree_decl_common</code></dt>
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<dd><p>This structure inherits from <code>struct tree_decl_minimal</code>. It
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contains fields that most <code>DECL</code> nodes need, such as a field to
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store alignment, machine mode, size, and attributes.
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</p>
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</dd>
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<dt><code>struct tree_field_decl</code></dt>
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<dd><p>This structure inherits from <code>struct tree_decl_common</code>. It is
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used to represent <code>FIELD_DECL</code>.
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</p>
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</dd>
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<dt><code>struct tree_label_decl</code></dt>
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<dd><p>This structure inherits from <code>struct tree_decl_common</code>. It is
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used to represent <code>LABEL_DECL</code>.
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</p>
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</dd>
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<dt><code>struct tree_translation_unit_decl</code></dt>
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<dd><p>This structure inherits from <code>struct tree_decl_common</code>. It is
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used to represent <code>TRANSLATION_UNIT_DECL</code>.
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</p>
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</dd>
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<dt><code>struct tree_decl_with_rtl</code></dt>
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<dd><p>This structure inherits from <code>struct tree_decl_common</code>. It
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contains a field to store the low-level RTL associated with a
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<code>DECL</code> node.
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</p>
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</dd>
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<dt><code>struct tree_result_decl</code></dt>
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<dd><p>This structure inherits from <code>struct tree_decl_with_rtl</code>. It is
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used to represent <code>RESULT_DECL</code>.
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</p>
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</dd>
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<dt><code>struct tree_const_decl</code></dt>
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<dd><p>This structure inherits from <code>struct tree_decl_with_rtl</code>. It is
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used to represent <code>CONST_DECL</code>.
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</p>
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</dd>
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<dt><code>struct tree_parm_decl</code></dt>
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<dd><p>This structure inherits from <code>struct tree_decl_with_rtl</code>. It is
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used to represent <code>PARM_DECL</code>.
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</p>
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</dd>
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<dt><code>struct tree_decl_with_vis</code></dt>
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<dd><p>This structure inherits from <code>struct tree_decl_with_rtl</code>. It
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contains fields necessary to store visibility information, as well as
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a section name and assembler name.
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</p>
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</dd>
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<dt><code>struct tree_var_decl</code></dt>
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<dd><p>This structure inherits from <code>struct tree_decl_with_vis</code>. It is
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used to represent <code>VAR_DECL</code>.
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</p>
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</dd>
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<dt><code>struct tree_function_decl</code></dt>
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<dd><p>This structure inherits from <code>struct tree_decl_with_vis</code>. It is
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used to represent <code>FUNCTION_DECL</code>.
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</p>
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</dd>
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</dl>
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</body>
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</html>
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