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Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
2 "http://www.w3.org/TR/html4/strict.dtd">
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]3<html>
Brian Gaekeaf19f2e2003-10-23 18:10:28 +0000[diff] [blame]4<head>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]5 <title>LLVM Test Suite Guide</title>
6 <link rel="stylesheet" href="llvm.css" type="text/css">
Brian Gaekeaf19f2e2003-10-23 18:10:28 +0000[diff] [blame]7</head>
Brian Gaekeaf19f2e2003-10-23 18:10:28 +0000[diff] [blame]8<body>
9
10<div class="doc_title">
11 LLVM Test Suite Guide
12</div>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]13
Brian Gaekeaf19f2e2003-10-23 18:10:28 +0000[diff] [blame]14<ol>
Reid Spencer820e2472004-11-01 08:30:14 +0000[diff] [blame]15 <li><a href="#overview">Overview</a></li>
16 <li><a href="#Requirements">Requirements</a></li>
17 <li><a href="#quick">Quick Start</a></li>
18 <li><a href="#org">LLVM Test Suite Organization</a>
19 <ul>
20 <li><a href="#codefragments">Code Fragments</a></li>
21 <li><a href="#wholeprograms">Whole Programs</a></li>
22 </ul>
23 </li>
24 <li><a href="#tree">LLVM Test Suite Tree</a></li>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]25 <li><a href="#dgstructure">DejaGNU Structure</a></li>
Reid Spencer820e2472004-11-01 08:30:14 +0000[diff] [blame]26 <li><a href="#progstructure"><tt>llvm-test</tt> Structure</a></li>
Chris Lattnereb82da82006-05-23 01:40:20 +0000[diff] [blame]27 <li><a href="#run">Running the LLVM Tests</a>
28 <ul>
29 <li><a href="#customtest">Writing custom tests for llvm-test</a></li>
30 </ul>
31 </li>
Reid Spencer820e2472004-11-01 08:30:14 +0000[diff] [blame]32 <li><a href="#nightly">Running the nightly tester</a></li>
Brian Gaekeaf19f2e2003-10-23 18:10:28 +0000[diff] [blame]33</ol>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]34
Chris Lattner7911ce22004-05-23 21:07:27 +0000[diff] [blame]35<div class="doc_author">
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]36 <p>Written by John T. Criswell, <a
37 href="http://llvm.x10sys.com/rspencer">Reid Spencer</a>, and Tanya Lattner</p>
Chris Lattner7911ce22004-05-23 21:07:27 +0000[diff] [blame]38</div>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]39
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]40<!--=========================================================================-->
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]41<div class="doc_section"><a name="overview">Overview</a></div>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]42<!--=========================================================================-->
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]43
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]44<div class="doc_text">
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]45
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]46<p>This document is the reference manual for the LLVM test suite. It documents
47the structure of the LLVM test suite, the tools needed to use it, and how to add
48and run tests.</p>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]49
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]50</div>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]51
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]52<!--=========================================================================-->
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]53<div class="doc_section"><a name="Requirements">Requirements</a></div>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]54<!--=========================================================================-->
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]55
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]56<div class="doc_text">
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]57
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]58<p>In order to use the LLVM test suite, you will need all of the software
59required to build LLVM, plus the following:</p>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]60
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]61<dl>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]62<dt><a href="http://www.gnu.org/software/dejagnu/">DejaGNU</a></dt>
63<dd>The Feature and Regressions tests are organized and run by DejaGNU.</dd>
64<dt><a href="http://expect.nist.gov/">Expect</a></dt>
65<dd>Expect is required by DejaGNU.</dd>
Tanya Lattnercc85da02004-12-08 17:35:31 +0000[diff] [blame]66<dt><a href="http://www.tcl.tk/software/tcltk/">tcl</a></dt>
67<dd>Tcl is required by DejaGNU. </dd>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]68
Reid Spencer376d7ac2004-11-01 08:26:25 +0000[diff] [blame]69<dt><a href="http://www.netlib.org/f2c">F2C</a></dt>
Misha Brukman0adfeed2004-10-08 00:55:43 +0000[diff] [blame]70<dd>For now, LLVM does not have a Fortran front-end, but using F2C, we can run
71Fortran benchmarks. F2C support must be enabled via <tt>configure</tt> if not
72installed in a standard place. F2C requires three items: the <tt>f2c</tt>
73executable, <tt>f2c.h</tt> to compile the generated code, and <tt>libf2c.a</tt>
74to link generated code. By default, given an F2C directory <tt>$DIR</tt>, the
75configure script will search <tt>$DIR/bin</tt> for <tt>f2c</tt>,
76<tt>$DIR/include</tt> for <tt>f2c.h</tt>, and <tt>$DIR/lib</tt> for
77<tt>libf2c.a</tt>. The default <tt>$DIR</tt> values are: <tt>/usr</tt>,
78<tt>/usr/local</tt>, <tt>/sw</tt>, and <tt>/opt</tt>. If you installed F2C in a
79different location, you must tell <tt>configure</tt>:
80
81<ul>
82<li><tt>./configure --with-f2c=$DIR</tt><br>
83This will specify a new <tt>$DIR</tt> for the above-described search
84process. This will only work if the binary, header, and library are in their
85respective subdirectories of <tt>$DIR</tt>.</li>
86
87<li><tt>./configure --with-f2c-bin=/binary/path --with-f2c-inc=/include/path
88--with-f2c-lib=/lib/path</tt><br>
89This allows you to specify the F2C components separately. Note: if you choose
90this route, you MUST specify all three components, and you need to only specify
91<em>directories</em> where the files are located; do NOT include the
92filenames themselves on the <tt>configure</tt> line.</li>
93</ul></dd>
94</dl>
Jim Laskeya2dee012006-03-27 18:41:06 +0000[diff] [blame]95
Jim Laskey5f4eaa52006-03-27 19:33:35 +0000[diff] [blame]96<p>Darwin (Mac OS X) developers can simplify the installation of Expect and tcl
97by using fink. <tt>fink install expect</tt> will install both. Alternatively,
Jim Laskey30c495e2006-03-27 19:46:38 +0000[diff] [blame]98Darwinports users can use <tt>sudo port install expect</tt> to install Expect
99and tcl.</p>
Jim Laskeyf8e78f02006-03-27 19:09:44 +0000[diff] [blame]100
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]101</div>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]102
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]103<!--=========================================================================-->
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]104<div class="doc_section"><a name="quick">Quick Start</a></div>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]105<!--=========================================================================-->
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]106
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]107<div class="doc_text">
Brian Gaekeaf19f2e2003-10-23 18:10:28 +0000[diff] [blame]108
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]109<p>The tests are located in two separate CVS modules. The basic feature and
110regression tests are in the main "llvm" module under the directory
111<tt>llvm/test</tt>. A more comprehensive test suite that includes whole
112programs in C and C++ is in the <tt>llvm-test</tt> module. This module should
113be checked out to the <tt>llvm/projects</tt> directory. When you
114<tt>configure</tt> the <tt>llvm</tt> module, the <tt>llvm-test</tt> module
Chris Lattner792321a2006-05-23 01:25:11 +0000[diff] [blame]115will be automatically configured. Alternatively, you can configure the
116 <tt>llvm-test</tt> module manually.</p>
117<p>To run all of the simple tests in LLVM using DejaGNU, use the master Makefile
118 in the <tt>llvm/test</tt> directory:</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]119<pre>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]120% gmake -C llvm/test
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]121</pre>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]122or<br>
123<pre>
124% gmake check
125</pre>
John Criswell0c8a9a12005-05-13 20:25:49 +0000[diff] [blame]126
127<p>To run only a subdirectory of tests in llvm/test using DejaGNU (ie.
128Regression/Transforms), just set the TESTSUITE variable to the path of the
129subdirectory (relative to <tt>llvm/test</tt>):</p>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]130<pre>
131% gmake -C llvm/test TESTSUITE=Regression/Transforms
132</pre>
Misha Brukmanfc1a27b2005-03-10 22:51:59 +0000[diff] [blame]133
John Criswell0c8a9a12005-05-13 20:25:49 +0000[diff] [blame]134<p><b>Note: If you are running the tests with <tt>objdir != subdir</tt>, you
135must have run the complete testsuite before you can specify a
136subdirectory.</b></p>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]137
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]138<p>To run the comprehensive test suite (tests that compile and execute whole
139programs), run the <tt>llvm-test</tt> tests:</p>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]140
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]141<pre>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]142% cd llvm/projects
143% cvs co llvm-test
144% cd llvm-test
145% ./configure --with-llvmsrc=$LLVM_SRC_ROOT --with-llvmobj=$LLVM_OBJ_ROOT
146% gmake
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]147</pre>
148
149</div>
150
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]151<!--=========================================================================-->
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]152<div class="doc_section"><a name="org">LLVM Test Suite Organization</a></div>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]153<!--=========================================================================-->
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]154
155<div class="doc_text">
156
157<p>The LLVM test suite contains two major categories of tests: code
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]158fragments and whole programs. Code fragments are in the <tt>llvm</tt> module
John Criswell0c8a9a12005-05-13 20:25:49 +0000[diff] [blame]159under the <tt>llvm/test</tt> directory. The whole programs
160test suite is in the <tt>llvm-test</tt> module under the main directory.</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]161
162</div>
163
Chris Lattnereb82da82006-05-23 01:40:20 +0000[diff] [blame]164<!-- _______________________________________________________________________ -->
165<div class="doc_subsection"><a name="codefragments">Code Fragments</a></div>
166<!-- _______________________________________________________________________ -->
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]167
168<div class="doc_text">
169
170<p>Code fragments are small pieces of code that test a specific feature of LLVM
171or trigger a specific bug in LLVM. They are usually written in LLVM assembly
172language, but can be written in other languages if the test targets a particular
173language front end.</p>
174
175<p>Code fragments are not complete programs, and they are never executed to
176determine correct behavior.</p>
177
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]178<p>These code fragment tests are located in the <tt>llvm/test/Features</tt> and
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]179<tt>llvm/test/Regression</tt> directories.</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]180
181</div>
182
Chris Lattnereb82da82006-05-23 01:40:20 +0000[diff] [blame]183<!-- _______________________________________________________________________ -->
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]184<div class="doc_subsection"><a name="wholeprograms">Whole Programs</a></div>
Chris Lattnereb82da82006-05-23 01:40:20 +0000[diff] [blame]185<!-- _______________________________________________________________________ -->
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]186
187<div class="doc_text">
188
189<p>Whole Programs are pieces of code which can be compiled and linked into a
190stand-alone program that can be executed. These programs are generally written
191in high level languages such as C or C++, but sometimes they are written
192straight in LLVM assembly.</p>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]193
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]194<p>These programs are compiled and then executed using several different
195methods (native compiler, LLVM C backend, LLVM JIT, LLVM native code generation,
196etc). The output of these programs is compared to ensure that LLVM is compiling
197the program correctly.</p>
198
199<p>In addition to compiling and executing programs, whole program tests serve as
200a way of benchmarking LLVM performance, both in terms of the efficiency of the
201programs generated as well as the speed with which LLVM compiles, optimizes, and
202generates code.</p>
203
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]204<p>All "whole program" tests are located in the <tt>llvm-test</tt> CVS
205module.</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]206
207</div>
208
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]209<!--=========================================================================-->
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]210<div class="doc_section"><a name="tree">LLVM Test Suite Tree</a></div>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]211<!--=========================================================================-->
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]212
213<div class="doc_text">
214
215<p>Each type of test in the LLVM test suite has its own directory. The major
216subtrees of the test suite directory tree are as follows:</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]217
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]218<ul>
Reid Spencera99256e2007-02-08 17:00:55 +0000[diff] [blame]219 <li><tt>llvm/test</tt>
220 <p>This directory contains a large array of small tests
221 that exercise various features of LLVM and to ensure that regressions do not
222 occur. The directory is broken into several sub-directories, each focused on
223 a particular area of LLVM. A few of the important ones are:<ul>
224 <li><tt>Analysis</tt>: checks Analysis passes.</li>
225 <li><tt>Archive</tt>: checks the Archive library.</li>
226 <li><tt>Assembler</tt>: checks Assembly reader/writer functionality.</li>
227 <li><tt>Bytecode</tt>: checks Bytecode reader/writer functionality.</li>
228 <li><tt>CodeGen</tt>: checks code generation and each target.</li>
229 <li><tt>Features</tt>: checks various features of the LLVM language.</li>
230 <li><tt>Linker</tt>: tests bytecode linking.</li>
231 <li><tt>Transforms</tt>: tests each of the scalar, IPO, and utility
232 transforms to ensure they make the right transformations.</li>
233 <li><tt>Verifier</tt>: tests the IR verifier.</li>
234 </ul></p>
235 <p>Typically when a bug is found in LLVM, a regression test containing
236 just enough code to reproduce the problem should be written and placed
237 somewhere underneath this directory. In most cases, this will be a small
238 piece of LLVM assembly language code, often distilled from an actual
239 application or benchmark.</p></li>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]240
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]241<li><tt>llvm-test</tt>
242<p>The <tt>llvm-test</tt> CVS module contains programs that can be compiled
243with LLVM and executed. These programs are compiled using the native compiler
244and various LLVM backends. The output from the program compiled with the
245native compiler is assumed correct; the results from the other programs are
Misha Brukman0904f092004-10-08 00:41:27 +0000[diff] [blame]246compared to the native program output and pass if they match.</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]247
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]248<p>In addition for testing correctness, the <tt>llvm-test</tt> directory also
249performs timing tests of various LLVM optimizations. It also records
250compilation times for the compilers and the JIT. This information can be
251used to compare the effectiveness of LLVM's optimizations and code
252generation.</p></li>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]253
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]254<li><tt>llvm-test/SingleSource</tt>
255<p>The SingleSource directory contains test programs that are only a single
256source file in size. These are usually small benchmark programs or small
257programs that calculate a particular value. Several such programs are grouped
258together in each directory.</p></li>
259
260<li><tt>llvm-test/MultiSource</tt>
261<p>The MultiSource directory contains subdirectories which contain entire
262programs with multiple source files. Large benchmarks and whole applications
263go here.</p></li>
264
265<li><tt>llvm-test/External</tt>
Misha Brukman0904f092004-10-08 00:41:27 +0000[diff] [blame]266<p>The External directory contains Makefiles for building code that is external
267to (i.e., not distributed with) LLVM. The most prominent members of this
268directory are the SPEC 95 and SPEC 2000 benchmark suites. The presence and
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]269location of these external programs is configured by the llvm-test
270<tt>configure</tt> script.</p></li>
271
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]272</ul>
Brian Gaekeaf19f2e2003-10-23 18:10:28 +0000[diff] [blame]273
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]274</div>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]275<!--=========================================================================-->
276<div class="doc_section"><a name="dgstructure">DejaGNU Structure</a></div>
277<!--=========================================================================-->
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]278<div class="doc_text">
Reid Spencerbbb2a7a2007-04-14 21:46:15 +0000[diff] [blame]279 <p>The LLVM test suite is partially driven by DejaGNU and partially driven by
280 GNU Make. Specifically, the Features and Regression tests are all driven by
281 DejaGNU. The <tt>llvm-test</tt> module is currently driven by a set of
282 Makefiles.</p>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]283
Reid Spencerbbb2a7a2007-04-14 21:46:15 +0000[diff] [blame]284 <p>The DejaGNU structure is very simple, but does require some information to
285 be set. This information is gathered via <tt>configure</tt> and is written
286 to a file, <tt>site.exp</tt> in <tt>llvm/test</tt>. The <tt>llvm/test</tt>
287 Makefile does this work for you.</p>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]288
Reid Spencerbbb2a7a2007-04-14 21:46:15 +0000[diff] [blame]289 <p>In order for DejaGNU to work, each directory of tests must have a
290 <tt>dg.exp</tt> file. DejaGNU looks for this file to determine how to run the
291 tests. This file is just a Tcl script and it can do anything you want, but
292 we've standardized it for the LLVM regression tests. It simply loads a Tcl
293 library (<tt>test/lib/llvm.exp</tt>) and calls the <tt>llvm_runtests</tt>
294 function defined in that library with a list of file names to run. The names
295 are obtained by using Tcl's glob command. Any directory that contains only
296 directories does not need the <tt>dg.exp</tt> file.</p>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]297
Reid Spencerbbb2a7a2007-04-14 21:46:15 +0000[diff] [blame]298 <p>The <tt>llvm-runtests</tt> function lookas at each file that is passed to
299 it and gathers any lines together that match "RUN:". This are the "RUN" lines
300 that specify how the test is to be run. So, each test script must contain
301 RUN lines if it is to do anything. If there are no RUN lines, the
302 <tt>llvm-runtests</tt> function will issue an error and the test will
303 fail.</p>
Misha Brukmanfc1a27b2005-03-10 22:51:59 +0000[diff] [blame]304
Reid Spencerbbb2a7a2007-04-14 21:46:15 +0000[diff] [blame]305 <p>RUN lines are specified in the comments of the test program using the
306 keyword <tt>RUN</tt> followed by a colon, and lastly the command (pipeline)
307 to execute. Together, these lines form the "script" that
308 <tt>llvm-runtests</tt> executes to run the test case. The syntax of the
309 RUN lines is similar to a shell's syntax for pipelines including I/O
310 redirection and variable substitution. However, even though these lines
311 may <i>look</i> like a shell script, they are not. RUN lines are interpreted
312 directly by the Tcl <tt>exec</tt> command. They are never executed by a
313 shell. Consequently the syntax differs from normal shell script syntax in a
314 few ways. You can specify as many RUN lines as needed.</p>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]315
Reid Spencerbbb2a7a2007-04-14 21:46:15 +0000[diff] [blame]316 <p>Each RUN line is executed on its own, distinct from other lines unless
317 its last character is <tt>\</tt>. This continuation character causes the RUN
318 line to be concatenated with the next one. In this way you can build up long
319 pipelines of commands without making huge line lengths. The lines ending in
320 <tt>\</tt> are concatenated until a RUN line that doesn't end in <tt>\</tt> is
321 found. This concatenated set or RUN lines then constitutes one execution.
322 Tcl will substitute variables and arrange for the pipeline to be executed. If
323 any process in the pipeline fails, the entire line (and test case) fails too.
324 </p>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]325
Reid Spencer024a1262007-04-14 23:27:06 +0000[diff] [blame^]326 <p>As with a Unix shell, the RUN: lines permit pipelines and I/O redirection
327 to be used. However, the usage is slightly different than for Bash. To check
328 what's legal, see the documentation for the
329 <a href="http://www.tcl.tk/man/tcl8.5/TclCmd/exec.htm#M2">Tcl exec</a>
330 command and the
331 <a href="http://www.tcl.tk/man/tcl8.5/tutorial/Tcl26.html">tutorial</a>.
332 The major differences are:</p>
333 <ul>
334 <li>You can't do <tt>2&gt;&amp;1</tt>. That will cause Tcl to write to a
335 file named <tt>&amp;1</tt>. Usually this is done to get stderr to go through
336 a pipe. You can do that in tcl with <tt>|&amp;</tt> so replace this idiom:
337 <tt>... 2&gt;&amp;1 | grep</tt> with <tt>... |&amp; grep</tt></li>
338 <li>You can only redirect to a file, not to another descriptor and not from
339 a here document.</li>
340 <li>tcl supports redirecting to open files with the @ syntax but you
341 shouldn't use that here.</li>
342 </ul>
343
Reid Spencerbbb2a7a2007-04-14 21:46:15 +0000[diff] [blame]344 <p> Below is an example of legal RUN lines in a <tt>.ll</tt> file:</p>
345 <pre>
346 ; RUN: llvm-as &lt; %s | llvm-dis &gt; %t1
347 ; RUN: llvm-dis &lt; %s.bc-13 &gt; %t2
348 ; RUN: diff %t1 %t2
349 </pre>
350</div>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]351
Reid Spencerbbb2a7a2007-04-14 21:46:15 +0000[diff] [blame]352<!-- _______________________________________________________________________ -->
353<div class="doc_subsection"><a name="dgvars">Vars And Substitutions</a></div>
354<div class="doc_text">
355 <p>With a RUN line there are a number of substitutions that are permitted. In
356 general, any Tcl variable that is available in the <tt>substitute</tt>
357 function (in <tt>test/lib/llvm.exp</tt>) can be substituted into a RUN line.
358 To make a substitution just write the variable's name preceded by a $.
359 Additionally, for compatibility reasons with previous versions of the test
360 library, certain names can be accessed with an alternate syntax: a % prefix.
361 These alternates are deprecated and may go away in a future version.
362 </p>
363 Here are the available variable names. The alternate syntax is listed in
364 parentheses.</p>
365 <dl style="margin-left: 25px">
366 <dt><b>$test</b> (%s)</dt>
367 <dd>The full path to the test case's source. This is suitable for passing
368 on the command line as the input to an llvm tool.</dd>
369 <dt><b>$srcdir</b></dt>
370 <dd>The source directory from where the "<tt>make check</tt>" was run.</dd>
371 <dt><b>objdir</b></dt>
372 <dd>The object directory that corresponds to the </tt>$srcdir</tt>.</dd>
373 <dt><b>subdir</b></dt>
374 <dd>A partial path from the <tt>test</tt> directory that contains the
375 sub-directory that contains the test source being executed.</dd>
376 <dt><b>srcroot</b></dt>
377 <dd>The root directory of the LLVM src tree.</dd>
378 <dt><b>objroot</b></dt>
379 <dd>The root directory of the LLVM object tree. This could be the same
380 as the srcroot.</dd>
381 <dt><b>path</b><dt>
382 <dd>The path to the directory that contains the test case source. This is
383 for locating any supporting files that are not generated by the test, but
384 used by the test.</dd>
385 <dt><b>tmp</b></dt>
386 <dd>The path to a temporary file name that could be used for this test case.
387 The file name won't conflict with other test cases. You can append to it if
388 you need multiple temporaries. This is useful as the destination of some
389 redirected output.</dd>
390 <dt><b>llvmlibsdir</b> (%llvmlibsdir)</dt>
391 <dd>The directory where the LLVM libraries are located.</dd>
392 <dt><b>target_triplet</b> (%target_triplet)</dt>
393 <dd>The target triplet that corresponds to the current host machine (the one
394 running the test cases). This should probably be called "host".<dd>
395 <dt><b>prcontext</b> (%prcontext)</dt>
396 <dd>Path to the prcontext tcl script that prints some context around a
397 line that matches a pattern. This isn't strictly necessary as the test suite
398 is run with its PATH altered to include the test/Scripts directory where
399 the prcontext script is located. Note that this script is similar to
400 <tt>grep -C</tt> but you should use the <tt>prcontext</tt> script because
401 not all platforms support <tt>grep -C</tt>.</dd>
402 <dt><b>llvmgcc</b> (%llvmgcc)</dt>
403 <dd>The full path to the <tt>llvm-gcc</tt> executable as specified in the
404 configured LLVM environment</dd>
405 <dt><b>llvmgxx</b> (%llvmgxx)</dt>
406 <dd>The full path to the <tt>llvm-gxx</tt> executable as specified in the
407 configured LLVM environment</dd>
408 <dt><b>llvmgcc_version</b> (%llvmgcc_version)</dt>
409 <dd>The full version number of the <tt>llvm-gcc</tt> executable.</dd>
410 <dt><b>llvmgccmajvers</b> (%llvmgccmajvers)</dt>
411 <dd>The major version number of the <tt>llvm-gcc</tt> executable.</dd>
412 <dt><b>gccpath</b></dt>
413 <dd>The full path to the C compiler used to <i>build </i> LLVM. Note that
414 this might not be gcc.</dd>
415 <dt><b>gxxpath</b></dt>
416 <dd>The full path to the C++ compiler used to <i>build </i> LLVM. Note that
417 this might not be g++.</dd>
418 <dt><b>compile_c</b> (%compile_c)</dt>
419 <dd>The full command line used to compile LLVM C source code. This has all
420 the configured -I, -D and optimization options.</dd>
421 <dt><b>compile_cxx</b> (%compile_cxx)</dt>
422 <dd>The full command used to compile LLVM C++ source code. This has
423 all the configured -I, -D and optimization options.</dd>
424 <dt><b>link</b> (%link)</dt>
425 <dd>This full link command used to link LLVM executables. This has all the
426 configured -I, -L and -l options.</dd>
427 <dt><b>shlibext</b> (%shlibext)</dt>
428 <dd>The suffix for the host platforms share library (dll) files. This
429 includes the period as the first character.</dd>
430 </dl>
431 <p>To add more variables, two things need to be changed. First, add a line in
432 the <tt>test/Makefile</tt> that creates the <tt>site.exp</tt> file. This will
433 "set" the variable as a global in the site.exp file. Second, in the
434 <tt>test/lib/llvm.exp</tt> file, in the substitute proc, add the variable name
435 to the list of "global" declarations at the beginning of the proc. That's it,
436 the variable can then be used in test scripts.</p>
437</div>
438
439<!-- _______________________________________________________________________ -->
440<div class="doc_subsection"><a name="dgfeatures">Other Features</a></div>
441<div class="doc_text">
442 <p>To make RUN line writing easier, there are several shell scripts located
443 in the <tt>llvm/test/Scripts</tt> directory. For example:</p>
444 <dl>
445 <dt><b>ignore</b></dt>
446 <dd>This script runs its arguments and then always returns 0. This is useful
447 in cases where the test needs to cause a tool to generate an error (e.g. to
448 check the error output). However, any program in a pipeline that returns a
449 non-zero result will cause the test to fail. This script overcomes that
450 issue and nicely documents that the test case is purposefully ignoring the
451 result code of the tool</dd>
452 <dt><b>not</b></dt>
453 <dd>This script runs its arguments and then inverts the result code from
454 it. Zero result codes become 1. Non-zero result codes become 0. This is
455 useful to invert the result of a grep. For example "not grep X" means
456 succeed only if you don't find X in the input.</dd>
457 </dl>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]458
Reid Spencerbbb2a7a2007-04-14 21:46:15 +0000[diff] [blame]459 <p>Sometimes it is necessary to mark a test case as "expected fail" or XFAIL.
460 You can easily mark a test as XFAIL just by including <tt>XFAIL: </tt> on a
461 line near the top of the file. This signals that the test case should succeed
462 if the test fails. Such test cases are counted separately by DejaGnu. To
463 specify an expected fail, use the XFAIL keyword in the comments of the test
464 program followed by a colon and one or more regular expressions (separated by
465 a comma). The regular expressions allow you to XFAIL the test conditionally
466 by host platform. The regular expressions following the : are matched against
467 the target triplet or llvmgcc version number for the host machine. If there is
468 a match, the test is expected to fail. If not, the test is expected to
469 succeed. To XFAIL everywhere just specify <tt>XFAIL: *</tt>. When matching
470 the llvm-gcc version, you can specify the major (e.g. 3) or full version
471 (i.e. 3.4) number. Here is an example of an <tt>XFAIL</tt> line:</p>
472 <pre>
473 ; XFAIL: darwin,sun,llvmgcc4
474 </pre>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]475
Reid Spencerbbb2a7a2007-04-14 21:46:15 +0000[diff] [blame]476 <p>To make the output more useful, the <tt>llvm_runtest</tt> function wil
477 scan the lines of the test case for ones that contain a pattern that matches
478 PR[0-9]+. This is the syntax for specifying a PR (Problem Report) number that
479 is related to the test case. The numer after "PR" specifies the LLVM bugzilla
480 number. When a PR number is specified, it will be used in the pass/fail
481 reporting. This is useful to quickly get some context when a test fails.</p>
482
483 <p>Finally, any line that contains "END." will cause the special
484 interpretation of lines to terminate. This is generally done right after the
485 last RUN: line. This has two side effects: (a) it prevents special
486 interpretation of lines that are part of the test program, not the
487 instructions to the test case, and (b) it speeds things up for really big test
488 cases by avoiding interpretation of the remainder of the file.</p>
Tanya Lattner5026c7f2004-12-06 02:11:52 +0000[diff] [blame]489
490</div>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]491
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]492<!--=========================================================================-->
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]493<div class="doc_section"><a name="progstructure"><tt>llvm-test</tt>
494Structure</a></div>
495<!--=========================================================================-->
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]496
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]497<div class="doc_text">
Brian Gaekeaf19f2e2003-10-23 18:10:28 +0000[diff] [blame]498
Misha Brukman0904f092004-10-08 00:41:27 +0000[diff] [blame]499<p>As mentioned previously, the <tt>llvm-test</tt> module provides three types
500of tests: MultiSource, SingleSource, and External. Each tree is then subdivided
501into several categories, including applications, benchmarks, regression tests,
502code that is strange grammatically, etc. These organizations should be
503relatively self explanatory.</p>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]504
Misha Brukman0904f092004-10-08 00:41:27 +0000[diff] [blame]505<p>In addition to the regular "whole program" tests, the <tt>llvm-test</tt>
506module also provides a mechanism for compiling the programs in different ways.
507If the variable TEST is defined on the gmake command line, the test system will
508include a Makefile named <tt>TEST.&lt;value of TEST variable&gt;.Makefile</tt>.
509This Makefile can modify build rules to yield different results.</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]510
Misha Brukman0904f092004-10-08 00:41:27 +0000[diff] [blame]511<p>For example, the LLVM nightly tester uses <tt>TEST.nightly.Makefile</tt> to
512create the nightly test reports. To run the nightly tests, run <tt>gmake
513TEST=nightly</tt>.</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]514
Misha Brukman0904f092004-10-08 00:41:27 +0000[diff] [blame]515<p>There are several TEST Makefiles available in the tree. Some of them are
516designed for internal LLVM research and will not work outside of the LLVM
517research group. They may still be valuable, however, as a guide to writing your
518own TEST Makefile for any optimization or analysis passes that you develop with
519LLVM.</p>
Reid Spencer3281ead2004-12-08 16:52:51 +0000[diff] [blame]520
521<p>Note, when configuring the <tt>llvm-test</tt> module, you might want to
522specify the following configuration options:</p>
523<dl>
524 <dt><i>--enable-spec2000</i>
525 <dt><i>--enable-spec2000=&lt;<tt>directory</tt>&gt;</i>
526 <dd>
527 Enable the use of SPEC2000 when testing LLVM. This is disabled by default
528 (unless <tt>configure</tt> finds SPEC2000 installed). By specifying
529 <tt>directory</tt>, you can tell configure where to find the SPEC2000
530 benchmarks. If <tt>directory</tt> is left unspecified, <tt>configure</tt>
531 uses the default value
532 <tt>/home/vadve/shared/benchmarks/speccpu2000/benchspec</tt>.
533 <p>
534 <dt><i>--enable-spec95</i>
535 <dt><i>--enable-spec95=&lt;<tt>directory</tt>&gt;</i>
536 <dd>
537 Enable the use of SPEC95 when testing LLVM. It is similar to the
538 <i>--enable-spec2000</i> option.
539 <p>
540 <dt><i>--enable-povray</i>
541 <dt><i>--enable-povray=&lt;<tt>directory</tt>&gt;</i>
542 <dd>
543 Enable the use of Povray as an external test. Versions of Povray written
544 in C should work. This option is similar to the <i>--enable-spec2000</i>
545 option.
546</dl>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]547</div>
548
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]549<!--=========================================================================-->
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]550<div class="doc_section"><a name="run">Running the LLVM Tests</a></div>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]551<!--=========================================================================-->
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]552
553<div class="doc_text">
554
555<p>First, all tests are executed within the LLVM object directory tree. They
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]556<i>are not</i> executed inside of the LLVM source tree. This is because the
557test suite creates temporary files during execution.</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]558
Chris Lattner792321a2006-05-23 01:25:11 +0000[diff] [blame]559<p>The master Makefile in llvm/test is capable of running only the DejaGNU
560driven tests. By default, it will run all of these tests.</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]561
Tanya Lattnercc85da02004-12-08 17:35:31 +0000[diff] [blame]562<p>To run only the DejaGNU driven tests, run <tt>gmake</tt> at the
John Criswellc6e32eb2005-05-13 19:48:07 +0000[diff] [blame]563command line in <tt>llvm/test</tt>. To run a specific directory of tests, use
564the TESTSUITE variable.
Tanya Lattnercc85da02004-12-08 17:35:31 +0000[diff] [blame]565</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]566
Tanya Lattnercc85da02004-12-08 17:35:31 +0000[diff] [blame]567<p>For example, to run the Regression tests, type
568<tt>gmake TESTSUITE=Regression</tt> in <tt>llvm/tests</tt>.</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]569
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]570<p>Note that there are no Makefiles in <tt>llvm/test/Features</tt> and
Tanya Lattnercc85da02004-12-08 17:35:31 +0000[diff] [blame]571<tt>llvm/test/Regression</tt>. You must use DejaGNU from the <tt>llvm/test</tt>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]572directory to run them.</p>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]573
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]574<p>To run the <tt>llvm-test</tt> suite, you need to use the following steps:
575</p>
576<ol>
577 <li>cd into the llvm/projects directory</li>
578 <li>check out the <tt>llvm-test</tt> module with:<br/>
Reid Spencer05fe4b02006-03-14 05:39:39 +0000[diff] [blame]579 <tt>cvs -d :pserver:anon@llvm.org:/var/cvs/llvm co -PR llvm-test</tt><br>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]580 This will get the test suite into <tt>llvm/projects/llvm-test</tt></li>
581 <li>configure the test suite. You can do this one of two ways:
582 <ol>
583 <li>Use the regular llvm configure:<br/>
584 <tt>cd $LLVM_OBJ_ROOT ; $LLVM_SRC_ROOT/configure</tt><br/>
585 This will ensure that the <tt>projects/llvm-test</tt> directory is also
586 properly configured.</li>
587 <li>Use the <tt>configure</tt> script found in the <tt>llvm-test</tt> source
588 directory:<br/>
Chris Lattner792321a2006-05-23 01:25:11 +0000[diff] [blame]589 <tt>$LLVM_SRC_ROOT/projects/llvm-test/configure
590 --with-llvmsrc=$LLVM_SRC_ROOT --with-llvmobj=$LLVM_OBJ_ROOT</tt>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]591 </li>
592 </ol>
593 <li>gmake</li>
594</ol>
595<p>Note that the second and third steps only need to be done once. After you
596have the suite checked out and configured, you don't need to do it again (unless
597the test code or configure script changes).</p>
598
599<p>To make a specialized test (use one of the
600<tt>llvm-test/TEST.&lt;type&gt;.Makefile</tt>s), just run:<br/>
601<tt>gmake TEST=&lt;type&gt; test</tt><br/>For example, you could run the
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]602nightly tester tests using the following commands:</p>
603
604<pre>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]605 % cd llvm/projects/llvm-test
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]606 % gmake TEST=nightly test
607</pre>
608
609<p>Regardless of which test you're running, the results are printed on standard
610output and standard error. You can redirect these results to a file if you
611choose.</p>
612
613<p>Some tests are known to fail. Some are bugs that we have not fixed yet;
Tanya Lattnercc85da02004-12-08 17:35:31 +0000[diff] [blame]614others are features that we haven't added yet (or may never add). In DejaGNU,
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]615the result for such tests will be XFAIL (eXpected FAILure). In this way, you
616can tell the difference between an expected and unexpected failure.</p>
617
John Criswellc6e32eb2005-05-13 19:48:07 +0000[diff] [blame]618<p>The tests in <tt>llvm-test</tt> have no such feature at this time. If the
Misha Brukman0904f092004-10-08 00:41:27 +0000[diff] [blame]619test passes, only warnings and other miscellaneous output will be generated. If
620a test fails, a large &lt;program&gt; FAILED message will be displayed. This
621will help you separate benign warnings from actual test failures.</p>
Chris Lattnerfd9d1b32004-06-24 20:53:09 +0000[diff] [blame]622
623</div>
624
Chris Lattnereb82da82006-05-23 01:40:20 +0000[diff] [blame]625<!-- _______________________________________________________________________ -->
626<div class="doc_subsection">
627<a name="customtest">Writing custom tests for llvm-test</a></div>
628<!-- _______________________________________________________________________ -->
629
630<div class="doc_text">
631
632<p>Assuming you can run llvm-test, (e.g. "<tt>gmake TEST=nightly report</tt>"
633should work), it is really easy to run optimizations or code generator
634components against every program in the tree, collecting statistics or running
635custom checks for correctness. At base, this is how the nightly tester works,
636it's just one example of a general framework.</p>
637
638<p>Lets say that you have an LLVM optimization pass, and you want to see how
639many times it triggers. First thing you should do is add an LLVM
640<a href="ProgrammersManual.html#Statistic">statistic</a> to your pass, which
641will tally counts of things you care about.</p>
642
643<p>Following this, you can set up a test and a report that collects these and
644formats them for easy viewing. This consists of two files, an
645"<tt>llvm-test/TEST.XXX.Makefile</tt>" fragment (where XXX is the name of your
646test) and an "<tt>llvm-test/TEST.XXX.report</tt>" file that indicates how to
647format the output into a table. There are many example reports of various
648levels of sophistication included with llvm-test, and the framework is very
649general.</p>
650
651<p>If you are interested in testing an optimization pass, check out the
652"libcalls" test as an example. It can be run like this:<p>
653
654<div class="doc_code">
655<pre>
656% cd llvm/projects/llvm-test/MultiSource/Benchmarks # or some other level
657% make TEST=libcalls report
658</pre>
659</div>
660
661<p>This will do a bunch of stuff, then eventually print a table like this:</p>
662
663<div class="doc_code">
664<pre>
665Name | total | #exit |
666...
667FreeBench/analyzer/analyzer | 51 | 6 |
668FreeBench/fourinarow/fourinarow | 1 | 1 |
669FreeBench/neural/neural | 19 | 9 |
670FreeBench/pifft/pifft | 5 | 3 |
671MallocBench/cfrac/cfrac | 1 | * |
672MallocBench/espresso/espresso | 52 | 12 |
673MallocBench/gs/gs | 4 | * |
674Prolangs-C/TimberWolfMC/timberwolfmc | 302 | * |
675Prolangs-C/agrep/agrep | 33 | 12 |
676Prolangs-C/allroots/allroots | * | * |
677Prolangs-C/assembler/assembler | 47 | * |
678Prolangs-C/bison/mybison | 74 | * |
679...
680</pre>
681</div>
682
683<p>This basically is grepping the -stats output and displaying it in a table.
684You can also use the "TEST=libcalls report.html" target to get the table in HTML
685form, similarly for report.csv and report.tex.</p>
686
687<p>The source for this is in llvm-test/TEST.libcalls.*. The format is pretty
688simple: the Makefile indicates how to run the test (in this case,
689"<tt>opt -simplify-libcalls -stats</tt>"), and the report contains one line for
690each column of the output. The first value is the header for the column and the
691second is the regex to grep the output of the command for. There are lots of
692example reports that can do fancy stuff.</p>
693
694</div>
695
696
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]697<!--=========================================================================-->
Chris Lattnerfd9d1b32004-06-24 20:53:09 +0000[diff] [blame]698<div class="doc_section"><a name="nightly">Running the nightly tester</a></div>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]699<!--=========================================================================-->
Chris Lattnerfd9d1b32004-06-24 20:53:09 +0000[diff] [blame]700
701<div class="doc_text">
702
703<p>
Patrick Jenkins825c2a72006-08-11 23:27:02 +0000[diff] [blame]704The <a href="http://llvm.org/nightlytest/">LLVM Nightly Testers</a>
Chris Lattnerfd9d1b32004-06-24 20:53:09 +0000[diff] [blame]705automatically check out an LLVM tree, build it, run the "nightly"
Patrick Jenkins825c2a72006-08-11 23:27:02 +0000[diff] [blame]706program test (described above), run all of the feature and regression tests,
707delete the checked out tree, and then submit the results to
708<a href="http://llvm.org/nightlytest/">http://llvm.org/nightlytest/</a>.
709After test results are submitted to
710<a href="http://llvm.org/nightlytest/">http://llvm.org/nightlytest/</a>,
711they are processed and displayed on the tests page. An email to
712<a href="http://lists.cs.uiuc.edu/pipermail/llvm-testresults/">
713llvm-testresults@cs.uiuc.edu</a> summarizing the results is also generated.
714This testing scheme is designed to ensure that programs don't break as well
715as keep track of LLVM's progress over time.</p>
Chris Lattnerfd9d1b32004-06-24 20:53:09 +0000[diff] [blame]716
Patrick Jenkins825c2a72006-08-11 23:27:02 +0000[diff] [blame]717<p>If you'd like to set up an instance of the nightly tester to run on your
718machine, take a look at the comments at the top of the
719<tt>utils/NewNightlyTest.pl</tt> file. If you decide to set up a nightly tester
720please choose a unique nickname and invoke <tt>utils/NewNightlyTest.pl</tt>
721with the "-nickname [yournickname]" command line option. We usually run it
722from a crontab entry that looks like this:</p>
Chris Lattnerfd9d1b32004-06-24 20:53:09 +0000[diff] [blame]723
Misha Brukmanfc1a27b2005-03-10 22:51:59 +0000[diff] [blame]724<div class="doc_code">
Chris Lattnerfd9d1b32004-06-24 20:53:09 +0000[diff] [blame]725<pre>
Patrick Jenkins825c2a72006-08-11 23:27:02 +0000[diff] [blame]7265 3 * * * $HOME/llvm/utils/NewNightlyTest.pl -parallel -nickname Nickname \
727 $CVSROOT $HOME/buildtest $HOME/cvs/testresults
Chris Lattnerfd9d1b32004-06-24 20:53:09 +0000[diff] [blame]728</pre>
Misha Brukmanfc1a27b2005-03-10 22:51:59 +0000[diff] [blame]729</div>
Chris Lattnerfd9d1b32004-06-24 20:53:09 +0000[diff] [blame]730
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]731<p>Or, you can create a shell script to encapsulate the running of the script.
Misha Brukmanfc1a27b2005-03-10 22:51:59 +0000[diff] [blame]732The optimized x86 Linux nightly test is run from just such a script:</p>
733
734<div class="doc_code">
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]735<pre>
736#!/bin/bash
737BASE=/proj/work/llvm/nightlytest
Reid Spencer05fe4b02006-03-14 05:39:39 +0000[diff] [blame]738export CVSROOT=:pserver:anon@llvm.org:/var/cvs/llvm
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]739export BUILDDIR=$BASE/build
740export WEBDIR=$BASE/testresults
741export LLVMGCCDIR=/proj/work/llvm/cfrontend/install
742export PATH=/proj/install/bin:$LLVMGCCDIR/bin:$PATH
743export LD_LIBRARY_PATH=/proj/install/lib
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]744cd $BASE
Patrick Jenkins825c2a72006-08-11 23:27:02 +0000[diff] [blame]745cp /proj/work/llvm/llvm/utils/NewNightlyTest.pl .
746nice ./NewNightlyTest.pl -nice -release -verbose -parallel -enable-linscan \
747 -nickname NightlyTester -noexternals 2&gt;&amp;1 &gt; output.log
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]748</pre>
Misha Brukmanfc1a27b2005-03-10 22:51:59 +0000[diff] [blame]749</div>
Reid Spencer8284f1f2004-09-05 20:07:26 +0000[diff] [blame]750
Patrick Jenkins825c2a72006-08-11 23:27:02 +0000[diff] [blame]751<p>It is also possible to specify the the location your nightly test results
752are submitted. You can do this by passing the command line option
753"-submit-server [server_address]" and "-submit-script [script_on_server]" to
754<tt>utils/NewNightlyTest.pl</tt>. For example, to submit to the llvm.org
755nightly test results page, you would invoke the nightly test script with
756"-submit-server llvm.org -submit-script /nightlytest/NightlyTestAccept.cgi".
757If these options are not specified, the nightly test script sends the results
758to the llvm.org nightly test results page.</p>
759
760<p>Take a look at the <tt>NewNightlyTest.pl</tt> file to see what all of the
761flags and strings do. If you start running the nightly tests, please let us
762know. Thanks!</p>
Misha Brukmanfc1a27b2005-03-10 22:51:59 +0000[diff] [blame]763
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]764</div>
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]765
Brian Gaekeaf19f2e2003-10-23 18:10:28 +0000[diff] [blame]766<!-- *********************************************************************** -->
John Criswell020cbd82003-10-10 18:42:49 +0000[diff] [blame]767
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]768<hr>
769<address>
770 <a href="http://jigsaw.w3.org/css-validator/check/referer"><img
771 src="http://jigsaw.w3.org/css-validator/images/vcss" alt="Valid CSS!"></a>
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Brian Gaekeaf19f2e2003-10-23 18:10:28 +0000[diff] [blame]774
John Criswellc6e32eb2005-05-13 19:48:07 +0000[diff] [blame]775 John T. Criswell, Reid Spencer, and Tanya Lattner<br>
Reid Spencer05fe4b02006-03-14 05:39:39 +0000[diff] [blame]776 <a href="http://llvm.org">The LLVM Compiler Infrastructure</a><br/>
Misha Brukman1d83e112004-03-01 18:21:04 +0000[diff] [blame]777 Last modified: $Date$
778</address>
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