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A bunch of editting. I'm still not done with the 'patches' section. 

llvm-svn: 34401
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Chris Lattner 2007-02-19 03:50:31 +00:00
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llvm/docs/DeveloperPolicy.html
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@ -6,44 +6,37 @@
<link rel="stylesheet" href="llvm.css" type="text/css">
</head>
<body>
<div class="doc_warning">DRAFT Only. DRAFT Only. DRAFT Only. DRAFT Only.</div>
<div class="doc_title">LLVM Developer Policy</div>
<table class="layout"><tr class="layout"><td class="layout">
<h2>Contents</h2>
<ol>
<li><a href="#introduction">Introduction</a></li>
<li><a href="#general">General Policies</a>
<ol>
<li><a href="#informed">Stay Informed</a> </li>
<li><a href="#newwork">Starting New Work</a></li>
<li><a href="#newwork">Starting&nbsp;New&nbsp;Work</a></li>
<li><a href="#reviews">Code Reviews</a></li>
<li><a href="#incremental">Incremental Development</a></li>
<li><a href="#quality">Quality</a></li>
<li><a href="#testcases">Test Cases</a></li>
<li><a href="#c_new">Obtaining Commit Access</a></li>
<li><a href="#incremental">Incremental Development</a></li>
<li><a href="#attribution">Attribution</a></li>
</ol></li>
<li><a href="#patches">Patch Policies</a>
<ol>
<li><a href="#p_form">Patch Form</a></li>
<li><a href="#p_testing">Patch Testing</a></li>
<li><a href="#p_submission">Patch Submission</a></li>
<li><a href="#p_aftersub">After Submission</a></li>
<li><a href="#p_aftercommit">After Commit</a></li>
<li><a href="#c_access">Obtaining Commit Access</a></li>
<li><a href="#c_new">New Committers</a></li>
</ol></li>
<li><a href="#candl">Copyright and License</a>
<ol>
<li><a href="#attribution">Attribution</a></li>
<li><a href="#copyright">Copyright</a></li>
<li><a href="#license">License</a></li>
<li><a href="#devagree">Developer Agreements</a></li>
</ol></li>
<li><a href="#terms">Terminology</a></li>
<li><a href="#polnotes">Policy Notes</a></li>
</ol>
<div class="doc_author">Written by LLVM Oversight Team</div>
</td><td class="layout">
<!--=========================================================================-->
<div class="doc_section"><a name="introduction">Introduction</a></div>
@ -59,8 +52,7 @@
<ol>
<li>Attract both users and developers to the LLVM project.</li>
<li>Make life as simple and easy for contributors as possible.</li>
<li>Indicate that LLVM is a mature project with a thriving community and
sensible policies directing its ongoing development.</li>
<li>Keep the top of tree CVS/SVN trees as stable as possible.</li>
</ol>
</div>
@ -68,9 +60,12 @@
<div class="doc_section"><a name="general">General Policies</a></div>
<!--=========================================================================-->
<div class="doc_text">
<p>This section contains policies that pertain generally to LLVM developers.
LLVM Developers are expected to meet the following obligations in order
for LLVM to maintain a high standard of quality.<p>
<p>This section contains policies that pertain generally to regular LLVM
developers. We always welcome <a href="#patches">random patches</a> from
people who do not routinely contribute to LLVM, but expect more from regular
contributors to keep the system as efficient as possible for everyone.
Regular LLVM developers are expected to meet the following obligations in
order for LLVM to maintain a high standard of quality.<p>
</div>
<!-- _______________________________________________________________________ -->
@ -95,78 +90,61 @@
it back to LLVM, s/he should inform the community with an email to
the <a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">llvm-dev</a>
email list, to the extent possible. The reason for this is to:
<ul>
<ol>
<li>keep the community informed about future changes to LLVM, </li>
<li>avoid duplication of effort by having multiple parties working on the
same thing and not knowing about it, and</li>
<li>ensure that any technical issues around the proposed work are
discussed and resolved before any significant work is done.</li>
</ul>
</ol>
<p>The design of LLVM is carefully controlled to ensure that all the pieces
fit together well. If you plan to make a major change to the way LLVM works or
fit together well and are as consistent as possible. If you plan to make a
major change to the way LLVM works or
a major new extension, it is a good idea to get consensus with the development
community before you start working on it.</p>
</div>
</td></tr></table>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"> <a name="reviews">Code Reviews</a></div>
<div class="doc_text">
<p>LLVM has a code review policy. Code review is an excellent way to ensure
high quality in the software. The following policies apply:</p>
<p>LLVM has a code review policy. Code review is one way to increase the
quality of software. We generally follow these policies:</p>
<ol>
<li>All developers are required to have significant changes reviewed
before they are committed to the repository.</li>
<li>Code reviews are conducted by email.</li>
<li>Code can be reviewed either before it is committed or after.</li>
<li>Code reviews are conducted by email, usually on the llvm-commits
list.</li>
<li>Code can be reviewed either before it is committed or after. We expect
major changes to be reviewed before being committed, but smaller
changes (or changes where the developer owns the component) can be
reviewed after commit.</li>
<li>The developer responsible for a code change is also responsible for
making all necessary review changes.</li>
making all necessary review-related changes.</li>
<li>Developers should participate in code reviews as both a reviewer and
a reviewee. We don't have a dedicated team of reviewers. If someone is
kind enough to review your code, you should return the favor for someone
else.</li>
</ol>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"> <a name="incremental">Incremental Development</a>
</div>
<div class="doc_text">
<p>LLVM uses an incremental development style and all developers are expected
to follow this practice. Incremental development is a big key to LLVM's
success and it is essential that developers submit incremental patches. The
following defines the incremental development approach:</p>
<ol>
<li>The first task is to define the increment and get consensus (with the
LLVM development community) on what the end goal of the change is. Making
random small changes that go nowhere is not useful for anyone.</li>
<li>An increment is the smallest patch size necessary to effect one change
in LLVM.</li>
<li>Increments can be stand alone (e.g. to fix a bug), or part of a planned
series of increments towards some development goal.</li>
<li>Increments should be kept as small as possible. This simplifies your
work (into a logical progression), simplifies code review and reduces the
chance that you will get negative feedback on the change. Small increments
also facilitate the maintenance of a high quality code base.</li>
<li>Larger increments require a larger testing effort.</li>
</ol>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"> <a name="quality">Quality</a></div>
<div class="doc_text">
<p>The minimum quality standards for any change to the main development
branch are:</p>
<p>The minimum quality standards that any change must satisfy before being
committed to the main development branch are:</p>
<ol>
<li>Code must adhere to the
<a href="CodingStandards.html">LLVM Coding Standards</a>.</li>
<li>Code must compile cleanly (no errors, no warnings) on at least one
platform.</li>
<li>Code must pass the deja gnu (llvm/test) test suite.</li>
<li>The code must not cause regressions on a reasonable subset of llvm-test,
where "reasonable" depends on the contributor's judgement and the scope
of the change (more invasive changes require more testing). A reasonable
subset is "<tt>llvm-test/MultiSource/Benchmarks</tt>".</li>
</ol>
<p>Additionally, the committer is responsible for addressing all of the
following items (preferably before submission):</p>
<ol>
<p>Additionally, the committer is responsible for addressing any problems
found that the change is responsible for. For example:</p>
<ul>
<li>The code should compile cleanly on all platforms.</li>
<li>The changes should not cause regressions in the <tt>llvm-test</tt>
suite including SPEC CINT2000, SPEC CFP2000, SPEC CINT2006, and
@ -175,15 +153,26 @@
for the LLVM tools.</li>
<li>The changes should not cause performance or correctness regressions in
code compiled by LLVM on all applicable targets.</li>
</ol>
<li>You are expected to address any <a href="http://llvm.org/bugs/">bugzilla
bugs</a> that result from your change.</li>
</ul>
<p>We prefer for this to be handled before submission but understand that it's
not possible to test all of this for every submission. Our nightly testing
infrastructure normally finds these problems. A good rule of thumb is to
check the nightly testers for regressions the day after your change.</p>
<p>Commits that violate these quality standards (e.g. are very broken) may
be reverted. This is necessary when the change blocks other developers from
making progress. The developer is welcome to re-commit the change after
the problem has been fixed.</p>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"> <a name="testcases">Test Cases</a></div>
<div class="doc_text">
<p>Developers are required to create test cases for regressions and new
features and include them with their changes. The following policies
apply:</p>
<p>Developers are required to create test cases for any bugs fixed and any new
features added. The following policies apply:</p>
<ol>
<li>All feature and regression test cases must be added to the
<tt>llvm/test</tt> directory. The appropriate sub-directory should be
@ -192,7 +181,7 @@
<li>Test cases should be written in
<a href="LangRef.html">LLVM assembly language</a> unless the
feature or regression being tested requires another language (e.g. the
bug being fixed or feature being implemented is in the lvm-gcc C++
bug being fixed or feature being implemented is in the llvm-gcc C++
front-end).</li>
<li>Test cases, especially for regressions, should be reduced as much as
possible, by <a href="CommandGuide/html/bugpoint.html">bugpoint</a> or
@ -201,17 +190,136 @@
a <i>time-to-test</i> burden on all developers. Please keep them short.</li>
<li>More extensive test cases (applications, benchmarks, etc.) should be
added to the <tt>llvm-test</tt> test suite. This test suite is for
coverage not features or regressions.</li>
coverage: not features or regressions.</li>
</ol>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"> <a name="c_new">Obtaining Commit Access</a></div>
<div class="doc_text">
<p>
We grant commit access to contributors with a track record of submitting high
quality patches. If you would like commit access, please send an email to the
<a href="mailto:llvm-oversight@cs.uiuc.edu">LLVM oversight group</a>.</p>
<p>If you have recently been granted commit access, these policies apply:</p>
<ol>
<li>You are granted <i>commit-after-approval</i> to all parts of LLVM.
To get approval, submit a <a href="#patches">patch</a> to
<a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits">
llvm-commits</a>. When approved you may commit it yourself.</li>
<li>You are allowed to commit patches without approval which you think are
obvious. This is clearly a subjective decision. We simply expect you to
use good judgement. Examples include: fixing build breakage, reverting
obviously broken patches, documentation/comment changes, any other minor
changes.</li>
<li>You are allowed to commit patches without approval to those portions
of LLVM that you have contributed or maintain (have been assigned
responsibility for), with the proviso that such commits must not break the
build. This is a "trust but verify" policy and commits of this nature are
reviewed after they are committed.</li>
<li>Multiple violations of these policies or a single egregious violation
may cause commit access to be revoked.</li>
</ol>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"> <a name="incremental">Incremental Development</a>
</div>
<div class="doc_text">
<p>When making a large change to LLVM, we use a incremental style of
development instead of having long-term development branches. Long-term
development branches have a number of drawbacks:</p>
<ol>
<li>Branches must have mainline merged into them periodically. If the branch
development and mainline development occur in the same pieces of code,
resolving merge conflicts can take a lot of time.</li>
<li>Other people in the community tend to ignore work on branches.</li>
<li>Huge changes (produced when a branch is merged back onto mainline) are
extremely difficult to <a href="#reviews">code review</a>.</li>
<li>Branches are not routinely tested by our nightly tester
infrastructure.</li>
<li>Changes developed as monolithic large changes often don't work until the
entire set of changes is done. Breaking it down into a set of smaller
changes increases the odds that any of the work will be committed to the
main repository.</li>
</ol>
<p>
To address these problems, LLVM uses an incremental development style and we
require contributors to follow this practice when making a large/invasive
change. Some tips:</p>
<ul>
<li>Large/invasive changes usually have a number of secondary changes that
are required before the big change can be made (e.g. API cleanup, etc).
These sorts of changes can often be done before the major change is done,
independently of that work.</li>
<li>The remaining inter-related work should be decomposed into unrelated
sets of changes if possible. Once this is done, define the first increment
and get consensus on what the end goal of the change is.</li>
<li>Increments can be stand alone (e.g. to fix a bug), or part of a planned
series of increments towards some development goal.</li>
<li>Increments should be kept as small as possible. This simplifies your
work (into a logical progression), simplifies code review and reduces the
chance that you will get negative feedback on the change. Small increments
also facilitate the maintenance of a high quality code base.</li>
<li>Often, an independent precursor to a big change is to add a new API and
slowly migrate clients to use the new API. Each change to use the new
API is often "obvious" and can be committed without review. Once the
new API is in place and used, it is often easy to replace the underlying
implementation of the API.</li>
</ul>
<p>If you are interested in making a large change, and this scares you, please
make sure to first <a href="#newwork">discuss the change/gather
consensus</a> then feel free to ask about the best way to go about making
the change.</p>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"><a name="attribution">Attribution</a></div>
<div class="doc_text">
<p>We believe in correct attribution of contributions to
their contributors. However, we do not want the source code to be littered
with random attributions (this is noisy/distracting and revision control
keeps a perfect history of this anyway). As such, we follow these rules:</p>
<ol>
<li>Developers who originate new files in LLVM should place their name at
the top of the file per the
<a href="CodingStandards.html#scf_commenting">Coding Standards</a>.</li>
<li>There should be only one name at the top of the file and it should be
the person who created the file.</li>
<li>Placing your name in the file does not imply <a
href="#candl">copyright</a>: it is only used to attribute the file to
its original author.</li>
<li>Developers should be aware that after some time has passed, the name at
the top of a file may become meaningless as maintenance/ownership of files
changes. Revision control keeps an accurate history of contributions.</li>
<li>Developers should maintain their entry in the
<a href="http://llvm.org/cvsweb/cvsweb.cgi/llvm/CREDITS.TXT?rev=HEAD&amp;content-type=text/x-cvsweb-markup">CREDITS.txt</a>
file to summarize their contributions.</li>
<li>Commit comments should contain correct attribution of the person who
submitted the patch if that person is not the committer (i.e. when a
developer with commit privileges commits a patch for someone else).</li>
</ol>
</div>
<!--=========================================================================-->
<div class="doc_section"><a name="patches">Patch Policies</a></div>
<!--=========================================================================-->
<div class="doc_text">
<p>This section contains policies that pertain to submitting patches
to LLVM and committing code to the repository</p>
<p>This section describes policies that apply to developers who regularly
contribute code to LLVM. As usual, we often accept small patches and
contributions that do not follow this policy. In this case, one of the
regular contributors has to get the code in shape.</p>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"> <a name="p_form">Patch Form</a></div>
<div class="doc_text">
@ -219,31 +327,18 @@
<ol>
<li>Patches must be made against the CVS HEAD (main development trunk),
not a branch.</li>
<li>Patches should be made with this command:<pre>
cvs diff -Ntdup -5</pre> or with the utility <tt>utils/mkpatch</tt>.</li>
<li>Patches should be made with this command:
<pre>cvs diff -Ntdup -5</pre>
or with the utility <tt>utils/mkpatch</tt>.</li>
<li>Patches should not include differences in generated code such as the
code generated by <tt>flex</tt>, <tt>bison</tt> or <tt>tblgen</tt>. The
<tt>utils/mkpatch</tt> utility takes care of this for you.</li>
<li>Patches must not include any patent violations. To the best of our
knowledge, LLVM is free of any existing patent violations and it is our
intent to keep it that way. </li>
</ol>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"> <a name="p_testing">Patch Testing</a></div>
<div class="doc_text">
<p>Before a patch is submitted for review, it should be tested to ensure
that:</p>
<ol>
<li>The patch must compile against the CVS HEAD cleanly (zero warnings, zero
errors).</li>
<li>All the llvm/test (Deja Gnu) tests must pass.</li>
<li>The patch should cause no regressions in the llvm-test test suite. How
much testing is appropriate depends on the nature of the patch. We leave it
to your good judgement, but you will be responsible for fixing any
regressions or reverting the patch.</li>
<li>Contributions must not knowingly infringe on any patents. To the best of
our knowledge, LLVM is free of any existing patent violations and it is our
intent to keep it that way.</li>
</ol>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"> <a name="p_submission">Patch Submission</a></div>
<div class="doc_text">
@ -290,55 +385,10 @@
</ol>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"> <a name="c_access">Obtaining Commit Access</a></div>
<div class="doc_text">
<p>Commit access to the repository is granted according to this policy:</p>
<ol>
<li>Commit access is not granted to anyone unless they specifically ask for
it.</li>
<li>Requests for commit access must be sent to the
<a href="mailto:llvm-oversight@cs.uiuc.edu">LLVM Oversight Group</a>.</li>
<li>Granting commit access is at the sole discretion of the LLVM Oversight
Group.</li>
</ol>
<p>Submitting patches to LLVM via the patch policy above will greatly
increase the chance that your request for commit access is granted. Getting
to know the members of the LLVM community (email, IRC, in person contact,
etc.) will also increase your chances.</p>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"> <a name="c_new">New Committers</a></div>
<div class="doc_text">
<p>For those who have recently obtained commit access, the following policies
apply:</p>
<ol>
<li>You are granted <i>commit-after-approval</i> to all parts of LLVM.
To get approval, submit a patch to
<a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits">llvm-commits</a>
per the <a href="#patches">patch policies</a> above. When approved you
may commit it yourself.</li>
<li>You are allowed to commit patches without approval which you think are
obvious. This is clearly a subjective decision. We simply expect you to
use good judgement.</li>
<li>You are allowed to commit patches without approval to those portions
of LLVM that you own (contributed) or maintain (have been assigned
responsibility for), with the proviso that such commits must not break the
build. This is a "trust but verify" policy and commits of this nature are
reviewed after they are committed.</li>
<li>Commits that violate the <a href="quality">quality standards</a> may
be reverted. This is necessary when the change blocks other developers from
making progress. The developer is welcome to re-commit the change after
the problem has been fixed.</li>
<li>Multiple violations of these policies or a single egregious violation
may cause commit access to be revoked.</li>
</ol>
</div>
<!--=========================================================================-->
<div class="doc_section"><a name="candl">Copyright and License</a></div>
<!--=========================================================================-->
<div class="doc_text">
<p>We address here the issues of copyright and license for the LLVM project.
The object of the copyright and license is the LLVM source code and
@ -347,36 +397,13 @@
terms of its license to LLVM users and developers is the
<a href="http://www.opensource.org/licenses/UoI-NCSA.php">University of
Illinois/NCSA Open Source License</a>.
</div>
<div class="doc_notes">
<p>NOTE: This section deals with legal matters but does not provide legal
advice. It is intended only as a general guideline.</p>
<p><b>NOTE: This section deals with legal matters but does not provide
official legal advice. We are not lawyers, please seek legal counsel from an
attorney.</b></p>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"><a name="attribution">Attribution</a></div>
<div class="doc_text">
<p>The LLVM project believes in correct attribution of contributions to
their contributors, as follows:</p>
<ol>
<li>Developers who originate new files in LLVM should place their name at
the top of the file per the
<a href="CodingStandards.html">Coding Standards</a>.</li>
<li>There should be only one name at the top of the file and it should be
the person who created the file.</li>
<li>Placing your name in the file does not imply copyright but does
correctly attribute the file to its author.</li>
<li>Developers should be aware that after some time has passed, the name at
the top of a file may become meaningless as maintenance/ownership of files
changes.</li>
<li>Developers should submit or commit patches to the
<a href="http://llvm.org/cvsweb/cvsweb.cgi/llvm/CREDITS.TXT?rev=1.67&amp;content-type=text/x-cvsweb-markup">CREDITS.txt</a>
file to summarize their contributions.</li>
<li>Commit comments should contain correct attribution of the person who
submitted the patch if that person is not the committer (i.e. when a
developer with commit privileges commits a patch for someone else).</li>
</ol>
</div>
<!-- _______________________________________________________________________ -->
@ -384,24 +411,27 @@
<div class="doc_text">
<p>
<p>For consistency and ease of management, the project requires the
copyright for all LLVM software to be held by a single copyright holder.
Although UIUC may assign the copyright of the software to another entity,
the intent for the project is to always have a single entity hold the copy
rights to LLVM at any given time.
<p>Having multiple copyright holders for various portions of LLVM is
problematic in the management of the software. Having a single copyright
copyright for all LLVM software to be held by a single copyright holder:
the University of Illinois (UIUC).</p>
<p>
Although UIUC may eventually reassign the copyright of the software to another
entity (e.g. a dedicated non-profit "LLVM Organization", or something)
the intent for the project is to always have a single entity hold the
copyrights to LLVM at any given time.</p>
<p>We believe that having a single copyright
holder is in the best interests of all developers and users as it greatly
reduces the managerial burden for any kind of administrative or technical
decisions about LLVM.</p>
decisions about LLVM. The goal of the LLVM project is to always keep the code
open and <a href="#license">licensed under a very liberal license</a>.</p>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"><a name="license">License</a></div>
<div class="doc_text">
<p>LLVM licensing decisions will be made by the LLVM Oversight Group. Any
issues, comments or suggestions with the licensing should be sent to the
<a href="mailto:llvm-oversight@cs.uiuc.edu">LLVM Oversight Group</a>.</p>
<p>The LLVM Oversight Group intends to keep LLVM perpetually open source
and to use liberal open source licenses. The current license is the
<p>We intend to keep LLVM perpetually open source
and to use a liberal open source license. The current license is the
<a href="http://www.opensource.org/licenses/UoI-NCSA.php">
University of Illinois/NCSA Open Source License</a>, which boils
down to this:</p>
@ -412,22 +442,37 @@
<li>You can't use our names to promote your LLVM derived products.</li>
<li>There's no warranty on LLVM at all.</li>
</ul>
<p>We believe this fosters the widest adoption of LLVM because it allows
commercial products to be derived from LLVM with few restrictions and
<p>We believe this fosters the widest adoption of LLVM because it <b>allows
commercial products to be derived from LLVM</b> with few restrictions and
without a requirement for making any derived works also open source (i.e.
LLVM's license is not a <i>copyleft</i> license). We suggest that you read
the <a href="http://www.opensource.org/licenses/UoI-NCSA.php">License</a>
LLVM's license is not a "copyleft" license like the GPL). We suggest that you
read the <a href="http://www.opensource.org/licenses/UoI-NCSA.php">License</a>
if further clarification is needed.</p>
<p>Note that the LLVM Project does distribute some code that includes GPL
software (notably, llvm-gcc which is based on the GCC GPL source base).
This means that anything "linked" into to llvm-gcc must itself be compatible
with the GPL, and must be releasable under the terms of the GPL. This implies
that you <b>any code linked into llvm-gcc and distributed may be subject to
the viral aspects of the GPL</b>. This is not a problem for the main LLVM
distribution (which is already licensed under a more liberal license), but may
be a problem if you intend to do commercial development without redistributing
your source code.</p>
<p>We have no plans to change the license of LLVM. If you have questions
or comments about the license, please contact the <a
href="mailto:llvm-oversight@cs.uiuc.edu">LLVM Oversight Group</a>.</p>
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsection"><a name="devagree">Developer Agreements</a></div>
<div class="doc_text">
<p>With regards to the LLVM copyright and licensing, developers agree to:</p>
<ul>
<li>assign their copy rights to UIUC for any contribution made so that
the entire software base can be managed by a single copyright holder.</li>
<li>allow their contribution(s) to be licensed as open source by the then
current license chosen by the LLVM Oversight Group.</li>
<p>With regards to the LLVM copyright and licensing, developers agree to
assign their copyrights to UIUC for any contribution made so that
the entire software base can be managed by a single copyright holder. This
implies that any contributions can be licensed under the license that the
project uses.</li>
</ul>
</div>
@ -445,10 +490,6 @@
<dt><a name="t_commit">Commit</a><dt>
<dd>A <a href="t_change">change</a> submitted directly to LLVM software
repository via the <tt>cvs commit</tt> command.</dd>
<dt><a name="t_copleft">Copyleft</a></dt>
<dd>A licensing policy that requires the licensee to adopt the terms of the
license for <i>derived</i> works. LLVM does not subscribe to this
policy.</dd>
<dt><a name="t_developer">Developer</a></dt>
<dd>Anyone who submits a <a href="#t_change">change</a> to LLVM.</dd>
<dt><a name="t_inrement">Increment</a></dt>
@ -456,31 +497,12 @@
<a href="#t_patch">patch</a> or <a href="#t_commit">commit</a>, that are
related by a single common purpose. Increments are atomic as they
leave LLVM in a stable state (both compiling and working properly).</dd>
<dt><a name="t_must">Must</a></dt>
<dd>When used in a policy statement, the term <i>must</i> implies a
non-optional requirement on the developer.</dd>
<dt><a name="t_patch">Patch</a></dt>
<dd>A <a href="#t_change">change</a> submitted by email in patch (diff)
format generated by the <tt>cvs diff</tt> command.</dd>
<dt><a name="t_should">Should</a></dt>
<dd>When used in a policy statement, the term <i>should</i> implies a
recommended but optional requirement on the developer.</dd>
</dl>
</div>
<!--=========================================================================-->
<div class="doc_section"><a name="polnotes">Policy Notes</a></div>
<!--=========================================================================-->
<div class="doc_text">
<p>This section contains some notes on policy topics that need to be
resolved and incorporated into the main body of the document above.</p>
<ol>
<li>When to open a new bug and when to re-use an existing one. For example
PR1158. If the same assertion happens do you open a new bug or reopen
1158?</li>
</ol>
</div>
<!-- *********************************************************************** -->
<hr>
<address>
@ -488,7 +510,7 @@
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Written By: the
Written by: the
<a href="mailto:llvm-oversight@cs.uiuc.edu">LLVM Oversight Group</a><br>
<a href="http://llvm.org">The LLVM Compiler Infrastructure</a><br>
Last modified: $Date$