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diff --git a/share/doc/gccint/Language_002ddependent-trees.html b/share/doc/gccint/Language_002ddependent-trees.html new file mode 100644 index 0000000..610c666 --- /dev/null +++ b/share/doc/gccint/Language_002ddependent-trees.html @@ -0,0 +1,101 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- Copyright (C) 1988-2023 Free Software Foundation, Inc. + +Permission is granted to copy, distribute and/or modify this document +under the terms of the GNU Free Documentation License, Version 1.3 or +any later version published by the Free Software Foundation; with the +Invariant Sections being "Funding Free Software", the Front-Cover +Texts being (a) (see below), and with the Back-Cover Texts being (b) +(see below). A copy of the license is included in the section entitled +"GNU Free Documentation License". + +(a) The FSF's Front-Cover Text is: + +A GNU Manual + +(b) The FSF's Back-Cover Text is: + +You have freedom to copy and modify this GNU Manual, like GNU + software. Copies published by the Free Software Foundation raise + funds for GNU development. --> +<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> +<head> +<title>GNU Compiler Collection (GCC) Internals: Language-dependent trees</title> + +<meta name="description" content="GNU Compiler Collection (GCC) Internals: Language-dependent trees"> +<meta name="keywords" content="GNU Compiler Collection (GCC) Internals: Language-dependent trees"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="makeinfo"> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<link href="index.html#Top" rel="start" title="Top"> +<link href="Option-Index.html#Option-Index" rel="index" title="Option Index"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="GENERIC.html#GENERIC" rel="up" title="GENERIC"> +<link href="C-and-C_002b_002b-Trees.html#C-and-C_002b_002b-Trees" rel="next" title="C and C++ Trees"> +<link href="Function-Properties.html#Function-Properties" rel="previous" title="Function Properties"> +<style type="text/css"> +<!-- +a.summary-letter {text-decoration: none} +blockquote.smallquotation {font-size: smaller} +div.display {margin-left: 3.2em} +div.example {margin-left: 3.2em} +div.indentedblock {margin-left: 3.2em} +div.lisp {margin-left: 3.2em} +div.smalldisplay {margin-left: 3.2em} +div.smallexample {margin-left: 3.2em} +div.smallindentedblock {margin-left: 3.2em; font-size: smaller} +div.smalllisp {margin-left: 3.2em} +kbd {font-style:oblique} +pre.display {font-family: inherit} +pre.format {font-family: inherit} +pre.menu-comment {font-family: serif} +pre.menu-preformatted {font-family: serif} +pre.smalldisplay {font-family: inherit; font-size: smaller} +pre.smallexample {font-size: smaller} +pre.smallformat {font-family: inherit; font-size: smaller} +pre.smalllisp {font-size: smaller} +span.nocodebreak {white-space:nowrap} +span.nolinebreak {white-space:nowrap} +span.roman {font-family:serif; font-weight:normal} +span.sansserif {font-family:sans-serif; font-weight:normal} +ul.no-bullet {list-style: none} +--> +</style> + + +</head> + +<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> +<a name="Language_002ddependent-trees"></a> +<div class="header"> +<p> +Next: <a href="C-and-C_002b_002b-Trees.html#C-and-C_002b_002b-Trees" accesskey="n" rel="next">C and C++ Trees</a>, Previous: <a href="Functions.html#Functions" accesskey="p" rel="previous">Functions</a>, Up: <a href="GENERIC.html#GENERIC" accesskey="u" rel="up">GENERIC</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> +</div> +<hr> +<a name="Language_002ddependent-trees-1"></a> +<h3 class="section">11.9 Language-dependent trees</h3> +<a name="index-language_002ddependent-trees"></a> + +<p>Front ends may wish to keep some state associated with various GENERIC +trees while parsing. To support this, trees provide a set of flags +that may be used by the front end. They are accessed using +<code>TREE_LANG_FLAG_n</code> where ‘<samp>n</samp>’ is currently 0 through 6. +</p> +<p>If necessary, a front end can use some language-dependent tree +codes in its GENERIC representation, so long as it provides a +hook for converting them to GIMPLE and doesn’t expect them to +work with any (hypothetical) optimizers that run before the +conversion to GIMPLE. The intermediate representation used while +parsing C and C++ looks very little like GENERIC, but the C and +C++ gimplifier hooks are perfectly happy to take it as input and +spit out GIMPLE. +</p> + + + + + +</body> +</html> |