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diff --git a/share/doc/gccint/C-Tests.html b/share/doc/gccint/C-Tests.html new file mode 100644 index 0000000..a8e4a67 --- /dev/null +++ b/share/doc/gccint/C-Tests.html @@ -0,0 +1,207 @@ +<!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: C Tests</title> + +<meta name="description" content="GNU Compiler Collection (GCC) Internals: C Tests"> +<meta name="keywords" content="GNU Compiler Collection (GCC) Internals: C Tests"> +<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="Testsuites.html#Testsuites" rel="up" title="Testsuites"> +<link href="LTO-Testing.html#LTO-Testing" rel="next" title="LTO Testing"> +<link href="Ada-Tests.html#Ada-Tests" rel="previous" title="Ada Tests"> +<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="C-Tests"></a> +<div class="header"> +<p> +Next: <a href="LTO-Testing.html#LTO-Testing" accesskey="n" rel="next">LTO Testing</a>, Previous: <a href="Ada-Tests.html#Ada-Tests" accesskey="p" rel="previous">Ada Tests</a>, Up: <a href="Testsuites.html#Testsuites" accesskey="u" rel="up">Testsuites</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="C-Language-Testsuites"></a> +<h3 class="section">7.4 C Language Testsuites</h3> + +<p>GCC contains the following C language testsuites, in the +<samp>gcc/testsuite</samp> directory: +</p> +<dl compact="compact"> +<dt><samp>gcc.dg</samp></dt> +<dd><p>This contains tests of particular features of the C compiler, using the +more modern ‘<samp>dg</samp>’ harness. Correctness tests for various compiler +features should go here if possible. +</p> +<p>Magic comments determine whether the file +is preprocessed, compiled, linked or run. In these tests, error and warning +message texts are compared against expected texts or regular expressions +given in comments. These tests are run with the options ‘<samp>-ansi -pedantic</samp>’ +unless other options are given in the test. Except as noted below they +are not run with multiple optimization options. +</p></dd> +<dt><samp>gcc.dg/compat</samp></dt> +<dd><p>This subdirectory contains tests for binary compatibility using +<samp>lib/compat.exp</samp>, which in turn uses the language-independent support +(see <a href="compat-Testing.html#compat-Testing">Support for testing binary compatibility</a>). +</p></dd> +<dt><samp>gcc.dg/cpp</samp></dt> +<dd><p>This subdirectory contains tests of the preprocessor. +</p></dd> +<dt><samp>gcc.dg/debug</samp></dt> +<dd><p>This subdirectory contains tests for debug formats. Tests in this +subdirectory are run for each debug format that the compiler supports. +</p></dd> +<dt><samp>gcc.dg/format</samp></dt> +<dd><p>This subdirectory contains tests of the <samp>-Wformat</samp> format +checking. Tests in this directory are run with and without +<samp>-DWIDE</samp>. +</p></dd> +<dt><samp>gcc.dg/noncompile</samp></dt> +<dd><p>This subdirectory contains tests of code that should not compile and +does not need any special compilation options. They are run with +multiple optimization options, since sometimes invalid code crashes +the compiler with optimization. +</p></dd> +<dt><samp>gcc.dg/special</samp></dt> +<dd><p>FIXME: describe this. +</p> +</dd> +<dt><samp>gcc.c-torture</samp></dt> +<dd><p>This contains particular code fragments which have historically broken easily. +These tests are run with multiple optimization options, so tests for features +which only break at some optimization levels belong here. This also contains +tests to check that certain optimizations occur. It might be worthwhile to +separate the correctness tests cleanly from the code quality tests, but +it hasn’t been done yet. +</p> +</dd> +<dt><samp>gcc.c-torture/compat</samp></dt> +<dd><p>FIXME: describe this. +</p> +<p>This directory should probably not be used for new tests. +</p></dd> +<dt><samp>gcc.c-torture/compile</samp></dt> +<dd><p>This testsuite contains test cases that should compile, but do not +need to link or run. These test cases are compiled with several +different combinations of optimization options. All warnings are +disabled for these test cases, so this directory is not suitable if +you wish to test for the presence or absence of compiler warnings. +While special options can be set, and tests disabled on specific +platforms, by the use of <samp>.x</samp> files, mostly these test cases +should not contain platform dependencies. FIXME: discuss how defines +such as <code>STACK_SIZE</code> are used. +</p></dd> +<dt><samp>gcc.c-torture/execute</samp></dt> +<dd><p>This testsuite contains test cases that should compile, link and run; +otherwise the same comments as for <samp>gcc.c-torture/compile</samp> apply. +</p></dd> +<dt><samp>gcc.c-torture/execute/ieee</samp></dt> +<dd><p>This contains tests which are specific to IEEE floating point. +</p></dd> +<dt><samp>gcc.c-torture/unsorted</samp></dt> +<dd><p>FIXME: describe this. +</p> +<p>This directory should probably not be used for new tests. +</p></dd> +<dt><samp>gcc.misc-tests</samp></dt> +<dd><p>This directory contains C tests that require special handling. Some +of these tests have individual expect files, and others share +special-purpose expect files: +</p> +<dl compact="compact"> +<dt><samp><code>bprob*.c</code></samp></dt> +<dd><p>Test <samp>-fbranch-probabilities</samp> using +<samp>gcc.misc-tests/bprob.exp</samp>, which +in turn uses the generic, language-independent framework +(see <a href="profopt-Testing.html#profopt-Testing">Support for testing profile-directed +optimizations</a>). +</p> +</dd> +<dt><samp><code>gcov*.c</code></samp></dt> +<dd><p>Test <code>gcov</code> output using <samp>gcov.exp</samp>, which in turn uses the +language-independent support (see <a href="gcov-Testing.html#gcov-Testing">Support for testing gcov</a>). +</p> +</dd> +<dt><samp><code>i386-pf-*.c</code></samp></dt> +<dd><p>Test i386-specific support for data prefetch using <samp>i386-prefetch.exp</samp>. +</p></dd> +</dl> + +</dd> +<dt><samp>gcc.test-framework</samp></dt> +<dd><dl compact="compact"> +<dt><samp><code>dg-*.c</code></samp></dt> +<dd><p>Test the testsuite itself using <samp>gcc.test-framework/test-framework.exp</samp>. +</p></dd> +</dl> + +</dd> +</dl> + +<p>FIXME: merge in <samp>testsuite/README.gcc</samp> and discuss the format of +test cases and magic comments more. +</p> +<hr> +<div class="header"> +<p> +Next: <a href="LTO-Testing.html#LTO-Testing" accesskey="n" rel="next">LTO Testing</a>, Previous: <a href="Ada-Tests.html#Ada-Tests" accesskey="p" rel="previous">Ada Tests</a>, Up: <a href="Testsuites.html#Testsuites" accesskey="u" rel="up">Testsuites</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> |