| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <!-- Copyright (C) 1988-2015 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 5.2, http://www.gnu.org/software/texinfo/ --> |
| <head> |
| <title>GNU Compiler Collection (GCC) Internals: GIMPLE API</title> |
| |
| <meta name="description" content="GNU Compiler Collection (GCC) Internals: GIMPLE API"> |
| <meta name="keywords" content="GNU Compiler Collection (GCC) Internals: GIMPLE API"> |
| <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="Match-and-Simplify.html#Match-and-Simplify" rel="up" title="Match and Simplify"> |
| <link href="The-Language.html#The-Language" rel="next" title="The Language"> |
| <link href="Match-and-Simplify.html#Match-and-Simplify" rel="prev" title="Match and Simplify"> |
| <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="GIMPLE-API"></a> |
| <div class="header"> |
| <p> |
| 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> |
| </div> |
| <hr> |
| <a name="GIMPLE-API-1"></a> |
| <h3 class="section">25.1 GIMPLE API</h3> |
| <a name="index-GIMPLE-API"></a> |
| |
| <dl> |
| <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> |
| <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> |
| <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> |
| <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> |
| <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> |
| <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, gimple_seq *, tree (*)(tree))</em></dt> |
| <dd><p>The main GIMPLE API entry to the expression simplifications mimicing |
| that of the GENERIC fold_{unary,binary,ternary} functions. |
| </p></dd></dl> |
| |
| <p>thus providing n-ary overloads for operation or function. The |
| additional arguments are a gimple_seq where built statements are |
| inserted on (if <code>NULL</code> then simplifications requiring new statements |
| are not performed) and a valueization hook that can be used to |
| tie simplifications to a SSA lattice. |
| </p> |
| <p>In addition to those APIs <code>fold_stmt</code> is overloaded with |
| a valueization hook: |
| </p> |
| <dl> |
| <dt><a name="index-_0028gimple_005fstmt_005fiterator"></a>bool: <em>fold_stmt</em> <strong>(gimple_stmt_iterator</strong> <em>*, tree (*)(tree));</em></dt> |
| </dl> |
| |
| |
| <p>Ontop of these a <code>fold_buildN</code>-like API for GIMPLE is introduced: |
| </p> |
| <dl> |
| <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> |
| <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> |
| <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> |
| <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> |
| <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> |
| <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> |
| </dl> |
| |
| <p>which is supposed to replace <code>force_gimple_operand (fold_buildN (...), ...)</code> |
| and calls to <code>fold_convert</code>. Overloads without the <code>location_t</code> |
| argument exist. Built statements are inserted on the provided sequence |
| and simplification is performed using the optional valueization hook. |
| </p> |
| |
| <hr> |
| <div class="header"> |
| <p> |
| 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> |
| </div> |
| |
| |
| |
| </body> |
| </html> |