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133 lines
7.5 KiB
HTML
133 lines
7.5 KiB
HTML
4 years ago
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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) 1988-2018 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 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>GIMPLE API (GNU Compiler Collection (GCC) Internals)</title>
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<meta name="description" content="GIMPLE API (GNU Compiler Collection (GCC) Internals)">
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<meta name="keywords" content="GIMPLE API (GNU Compiler Collection (GCC) Internals)">
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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="Match-and-Simplify.html#Match-and-Simplify" rel="up" title="Match and Simplify">
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<link href="The-Language.html#The-Language" rel="next" title="The Language">
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<link href="Match-and-Simplify.html#Match-and-Simplify" rel="prev" title="Match and Simplify">
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<style type="text/css">
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-->
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</style>
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</head>
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<body lang="en">
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<a name="GIMPLE-API"></a>
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<div class="header">
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<p>
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Next: <a href="The-Language.html#The-Language" accesskey="n" rel="next">The Language</a>, Up: <a href="Match-and-Simplify.html#Match-and-Simplify" accesskey="u" rel="up">Match and Simplify</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="GIMPLE-API-1"></a>
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<h3 class="section">26.1 GIMPLE API</h3>
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<a name="index-GIMPLE-API"></a>
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<dl>
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<dt><a name="index-gimple_005fsimplify"></a>GIMPLE function: <em>tree</em> <strong>gimple_simplify</strong> <em>(enum tree_code, tree, tree, gimple_seq *, tree (*)(tree))</em></dt>
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<dt><a name="index-gimple_005fsimplify-1"></a>GIMPLE function: <em>tree</em> <strong>gimple_simplify</strong> <em>(enum tree_code, tree, tree, tree, gimple_seq *, tree (*)(tree))</em></dt>
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<dt><a name="index-gimple_005fsimplify-2"></a>GIMPLE function: <em>tree</em> <strong>gimple_simplify</strong> <em>(enum tree_code, tree, tree, tree, tree, gimple_seq *, tree (*)(tree))</em></dt>
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<dt><a name="index-gimple_005fsimplify-3"></a>GIMPLE function: <em>tree</em> <strong>gimple_simplify</strong> <em>(enum built_in_function, tree, tree, gimple_seq *, tree (*)(tree))</em></dt>
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<dt><a name="index-gimple_005fsimplify-4"></a>GIMPLE function: <em>tree</em> <strong>gimple_simplify</strong> <em>(enum built_in_function, tree, tree, tree, gimple_seq *, tree (*)(tree))</em></dt>
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<dt><a name="index-gimple_005fsimplify-5"></a>GIMPLE function: <em>tree</em> <strong>gimple_simplify</strong> <em>(enum built_in_function, tree, tree, tree, tree, gimple_seq *, tree (*)(tree))</em></dt>
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<dd><p>The main GIMPLE API entry to the expression simplifications mimicing
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that of the GENERIC fold_{unary,binary,ternary} functions.
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</p></dd></dl>
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<p>thus providing n-ary overloads for operation or function. The
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additional arguments are a gimple_seq where built statements are
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inserted on (if <code>NULL</code> then simplifications requiring new statements
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are not performed) and a valueization hook that can be used to
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tie simplifications to a SSA lattice.
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</p>
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<p>In addition to those APIs <code>fold_stmt</code> is overloaded with
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a valueization hook:
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</p>
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<dl>
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<dt><a name="index-_0028gimple_005fstmt_005fiterator"></a>bool: <em>fold_stmt</em> <strong>(gimple_stmt_iterator</strong> <em>*, tree (*)(tree));</em></dt>
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</dl>
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<p>Ontop of these a <code>fold_buildN</code>-like API for GIMPLE is introduced:
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</p>
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<dl>
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<dt><a name="index-gimple_005fbuild"></a>GIMPLE function: <em>tree</em> <strong>gimple_build</strong> <em>(gimple_seq *, location_t, enum tree_code, tree, tree, tree (*valueize) (tree) = NULL);</em></dt>
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<dt><a name="index-gimple_005fbuild-1"></a>GIMPLE function: <em>tree</em> <strong>gimple_build</strong> <em>(gimple_seq *, location_t, enum tree_code, tree, tree, tree, tree (*valueize) (tree) = NULL);</em></dt>
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<dt><a name="index-gimple_005fbuild-2"></a>GIMPLE function: <em>tree</em> <strong>gimple_build</strong> <em>(gimple_seq *, location_t, enum tree_code, tree, tree, tree, tree, tree (*valueize) (tree) = NULL);</em></dt>
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<dt><a name="index-gimple_005fbuild-3"></a>GIMPLE function: <em>tree</em> <strong>gimple_build</strong> <em>(gimple_seq *, location_t, enum built_in_function, tree, tree, tree (*valueize) (tree) = NULL);</em></dt>
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<dt><a name="index-gimple_005fbuild-4"></a>GIMPLE function: <em>tree</em> <strong>gimple_build</strong> <em>(gimple_seq *, location_t, enum built_in_function, tree, tree, tree, tree (*valueize) (tree) = NULL);</em></dt>
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<dt><a name="index-gimple_005fbuild-5"></a>GIMPLE function: <em>tree</em> <strong>gimple_build</strong> <em>(gimple_seq *, location_t, enum built_in_function, tree, tree, tree, tree, tree (*valueize) (tree) = NULL);</em></dt>
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<dt><a name="index-gimple_005fconvert"></a>GIMPLE function: <em>tree</em> <strong>gimple_convert</strong> <em>(gimple_seq *, location_t, tree, tree);</em></dt>
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</dl>
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<p>which is supposed to replace <code>force_gimple_operand (fold_buildN (...), ...)</code>
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and calls to <code>fold_convert</code>. Overloads without the <code>location_t</code>
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argument exist. Built statements are inserted on the provided sequence
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and simplification is performed using the optional valueization hook.
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</p>
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<hr>
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<div class="header">
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<p>
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Next: <a href="The-Language.html#The-Language" accesskey="n" rel="next">The Language</a>, Up: <a href="Match-and-Simplify.html#Match-and-Simplify" accesskey="u" rel="up">Match and Simplify</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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</body>
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</html>
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