You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
209 lines
9.1 KiB
HTML
209 lines
9.1 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<!-- Copyright (C) 1988-2018 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 6.4, http://www.gnu.org/software/texinfo/ -->
|
|
<head>
|
|
<title>Add Options (GNU Compiler Collection (GCC) Internals)</title>
|
|
|
|
<meta name="description" content="Add Options (GNU Compiler Collection (GCC) Internals)">
|
|
<meta name="keywords" content="Add Options (GNU Compiler Collection (GCC) Internals)">
|
|
<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="Test-Directives.html#Test-Directives" rel="up" title="Test Directives">
|
|
<link href="Require-Support.html#Require-Support" rel="next" title="Require Support">
|
|
<link href="Effective_002dTarget-Keywords.html#Effective_002dTarget-Keywords" rel="prev" title="Effective-Target Keywords">
|
|
<style type="text/css">
|
|
<!--
|
|
a.summary-letter {text-decoration: none}
|
|
blockquote.indentedblock {margin-right: 0em}
|
|
blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
|
|
blockquote.smallquotation {font-size: smaller}
|
|
div.display {margin-left: 3.2em}
|
|
div.example {margin-left: 3.2em}
|
|
div.lisp {margin-left: 3.2em}
|
|
div.smalldisplay {margin-left: 3.2em}
|
|
div.smallexample {margin-left: 3.2em}
|
|
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.nolinebreak {white-space: nowrap}
|
|
span.roman {font-family: initial; font-weight: normal}
|
|
span.sansserif {font-family: sans-serif; font-weight: normal}
|
|
ul.no-bullet {list-style: none}
|
|
-->
|
|
</style>
|
|
|
|
|
|
</head>
|
|
|
|
<body lang="en">
|
|
<a name="Add-Options"></a>
|
|
<div class="header">
|
|
<p>
|
|
Next: <a href="Require-Support.html#Require-Support" accesskey="n" rel="next">Require Support</a>, Previous: <a href="Effective_002dTarget-Keywords.html#Effective_002dTarget-Keywords" accesskey="p" rel="prev">Effective-Target Keywords</a>, Up: <a href="Test-Directives.html#Test-Directives" accesskey="u" rel="up">Test Directives</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="Features-for-dg_002dadd_002doptions"></a>
|
|
<h4 class="subsection">7.2.4 Features for <code>dg-add-options</code></h4>
|
|
|
|
<p>The supported values of <var>feature</var> for directive <code>dg-add-options</code>
|
|
are:
|
|
</p>
|
|
<dl compact="compact">
|
|
<dt><code>arm_fp</code></dt>
|
|
<dd><p><code>__ARM_FP</code> definition. Only ARM targets support this feature, and only then
|
|
in certain modes; see the <a href="Effective_002dTarget-Keywords.html#arm_005ffp_005fok">arm_fp_ok effective target
|
|
keyword</a>.
|
|
</p>
|
|
</dd>
|
|
<dt><code>arm_neon</code></dt>
|
|
<dd><p>NEON support. Only ARM targets support this feature, and only then
|
|
in certain modes; see the <a href="Effective_002dTarget-Keywords.html#arm_005fneon_005fok">arm_neon_ok effective target
|
|
keyword</a>.
|
|
</p>
|
|
</dd>
|
|
<dt><code>arm_fp16</code></dt>
|
|
<dd><p>VFP half-precision floating point support. This does not select the
|
|
FP16 format; for that, use <a href="#arm_005ffp16_005fieee">arm_fp16_ieee</a> or
|
|
<a href="#arm_005ffp16_005falternative">arm_fp16_alternative</a> instead. This
|
|
feature is only supported by ARM targets and then only in certain
|
|
modes; see the <a href="Effective_002dTarget-Keywords.html#arm_005ffp16_005fok">arm_fp16_ok effective target
|
|
keyword</a>.
|
|
</p>
|
|
</dd>
|
|
<dt><code>arm_fp16_ieee</code></dt>
|
|
<dd><a name="arm_005ffp16_005fieee"></a><p>ARM IEEE 754-2008 format VFP half-precision floating point support.
|
|
This feature is only supported by ARM targets and then only in certain
|
|
modes; see the <a href="Effective_002dTarget-Keywords.html#arm_005ffp16_005fok">arm_fp16_ok effective target
|
|
keyword</a>.
|
|
</p>
|
|
</dd>
|
|
<dt><code>arm_fp16_alternative</code></dt>
|
|
<dd><a name="arm_005ffp16_005falternative"></a><p>ARM Alternative format VFP half-precision floating point support.
|
|
This feature is only supported by ARM targets and then only in certain
|
|
modes; see the <a href="Effective_002dTarget-Keywords.html#arm_005ffp16_005fok">arm_fp16_ok effective target
|
|
keyword</a>.
|
|
</p>
|
|
</dd>
|
|
<dt><code>arm_neon_fp16</code></dt>
|
|
<dd><p>NEON and half-precision floating point support. Only ARM targets
|
|
support this feature, and only then in certain modes; see
|
|
the <a href="Effective_002dTarget-Keywords.html#arm_005fneon_005ffp16_005fok">arm_neon_fp16_ok effective target keyword</a>.
|
|
</p>
|
|
</dd>
|
|
<dt><code>arm_vfp3</code></dt>
|
|
<dd><p>arm vfp3 floating point support; see
|
|
the <a href="Effective_002dTarget-Keywords.html#arm_005fvfp3_005fok">arm_vfp3_ok effective target keyword</a>.
|
|
</p>
|
|
</dd>
|
|
<dt><code>arm_v8_1a_neon</code></dt>
|
|
<dd><p>Add options for ARMv8.1-A with Adv.SIMD support, if this is supported
|
|
by the target; see the <a href="Effective_002dTarget-Keywords.html#arm_005fv8_005f1a_005fneon_005fok">arm_v8_1a_neon_ok</a>
|
|
effective target keyword.
|
|
</p>
|
|
</dd>
|
|
<dt><code>arm_v8_2a_fp16_scalar</code></dt>
|
|
<dd><p>Add options for ARMv8.2-A with scalar FP16 support, if this is
|
|
supported by the target; see the
|
|
<a href="Effective_002dTarget-Keywords.html#arm_005fv8_005f2a_005ffp16_005fscalar_005fok">arm_v8_2a_fp16_scalar_ok</a> effective
|
|
target keyword.
|
|
</p>
|
|
</dd>
|
|
<dt><code>arm_v8_2a_fp16_neon</code></dt>
|
|
<dd><p>Add options for ARMv8.2-A with Adv.SIMD FP16 support, if this is
|
|
supported by the target; see the
|
|
<a href="Effective_002dTarget-Keywords.html#arm_005fv8_005f2a_005ffp16_005fneon_005fok">arm_v8_2a_fp16_neon_ok</a> effective target
|
|
keyword.
|
|
</p>
|
|
</dd>
|
|
<dt><code>arm_v8_2a_dotprod_neon</code></dt>
|
|
<dd><p>Add options for ARMv8.2-A with Adv.SIMD Dot Product support, if this is
|
|
supported by the target; see the
|
|
<a href="Effective_002dTarget-Keywords.html#arm_005fv8_005f2a_005fdotprod_005fneon_005fok">arm_v8_2a_dotprod_neon_ok</a> effective target keyword.
|
|
</p>
|
|
</dd>
|
|
<dt><code>arm_fp16fml_neon</code></dt>
|
|
<dd><p>Add options to enable generation of the <code>VFMAL</code> and <code>VFMSL</code>
|
|
instructions, if this is supported by the target; see the
|
|
<a href="Effective_002dTarget-Keywords.html#arm_005ffp16fml_005fneon_005fok">arm_fp16fml_neon_ok</a> effective target keyword.
|
|
</p>
|
|
</dd>
|
|
<dt><code>bind_pic_locally</code></dt>
|
|
<dd><p>Add the target-specific flags needed to enable functions to bind
|
|
locally when using pic/PIC passes in the testsuite.
|
|
</p>
|
|
</dd>
|
|
<dt><code>c99_runtime</code></dt>
|
|
<dd><p>Add the target-specific flags needed to access the C99 runtime.
|
|
</p>
|
|
</dd>
|
|
<dt><code>float<var>n</var></code></dt>
|
|
<dd><p>Add the target-specific flags needed to use the <code>_Float<var>n</var></code> type.
|
|
</p>
|
|
</dd>
|
|
<dt><code>float<var>n</var>x</code></dt>
|
|
<dd><p>Add the target-specific flags needed to use the <code>_Float<var>n</var>x</code> type.
|
|
</p>
|
|
</dd>
|
|
<dt><code>ieee</code></dt>
|
|
<dd><p>Add the target-specific flags needed to enable full IEEE
|
|
compliance mode.
|
|
</p>
|
|
</dd>
|
|
<dt><code>mips16_attribute</code></dt>
|
|
<dd><p><code>mips16</code> function attributes.
|
|
Only MIPS targets support this feature, and only then in certain modes.
|
|
</p>
|
|
</dd>
|
|
<dt><code>stack_size</code></dt>
|
|
<dd><a name="stack_005fsize_005fao"></a><p>Add the flags needed to define macro STACK_SIZE and set it to the stack size
|
|
limit associated with the <a href="Effective_002dTarget-Keywords.html#stack_005fsize_005fet"><code>stack_size</code> effective
|
|
target</a>.
|
|
</p>
|
|
</dd>
|
|
<dt><code>tls</code></dt>
|
|
<dd><p>Add the target-specific flags needed to use thread-local storage.
|
|
</p></dd>
|
|
</dl>
|
|
|
|
<hr>
|
|
<div class="header">
|
|
<p>
|
|
Next: <a href="Require-Support.html#Require-Support" accesskey="n" rel="next">Require Support</a>, Previous: <a href="Effective_002dTarget-Keywords.html#Effective_002dTarget-Keywords" accesskey="p" rel="prev">Effective-Target Keywords</a>, Up: <a href="Test-Directives.html#Test-Directives" accesskey="u" rel="up">Test Directives</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>
|