10 Introduction - Achieving consistency in how we deal with bug reports
11 ====================================================================
13 We aim to achieve a basic level of consistency in how reported bugs evolve from
14 being reported, to being worked on, and finally getting closed out. The
15 consistency helps reporters, developers and others to gain a better
16 understanding of what a particular bug state actually means and what to expect
19 At the same time, we aim to not over-specify the life cycle of bugs in
20 `the LLVM Bug Tracking System <https://github.com/llvm/llvm-project/issues>`_,
21 as the overall goal is to make it easier to work with and understand the bug
24 The main parts of the life cycle documented here are:
28 #. `Actively working on fixing`_
31 Furthermore, some of the metadata in the bug tracker, such as what labels we
32 use, needs to be maintained. See the following for details:
34 #. `Maintenance of metadata`_
42 See :doc:`HowToSubmitABug` on further details on how to submit good bug reports.
44 You can apply `labels <https://docs.github.com/en/issues/using-labels-and-milestones-to-track-work/managing-labels>`_
45 to the bug to provide extra information to make the bug easier to discover, such
46 as a label for the part of the project the bug pertains to.
53 Open bugs that have not been marked with the ``confirmed`` label are bugs that
54 still need to be triaged. When triage is complete, the ``confirmed`` label
55 should be added along with any other labels that help to classify the report,
56 unless the issue is being :ref:`closed<Closing>`.
58 The goal of triaging a bug is to make sure a newly reported bug ends up in a
59 good, actionable state. Try to answer the following questions while triaging:
61 * Is the reported behavior actually wrong?
63 * E.g. does a miscompile example depend on undefined behavior?
65 * Can you reproduce the bug from the details in the report?
67 * If not, is there a reasonable explanation why it cannot be reproduced?
69 * Is it related to an already reported bug?
71 * Are the following fields filled in correctly?
77 * When able to do so, please add the appropriate labels to classify the bug,
78 such as the tool (``clang``, ``clang-format``, ``clang-tidy``, etc) or
79 component (``backend:<name>``, ``compiler-rt:<name>``, ``clang:<name>``, etc).
81 * If the issue is with a particular revision of the C or C++ standard, please
82 add the appropriate language standard label (``c++20``, ``c99``, etc).
84 * Please don't use both a general and a specific label. For example, bugs
85 labeled ``c++17`` shouldn't also have ``c++``, and bugs labeled
86 ``clang:codegen`` shouldn't also have ``clang``.
88 * Add the ``good first issue`` label if you think this would be a good bug to
89 be fixed by someone new to LLVM. This label feeds into `the landing page
90 for new contributors <https://github.com/llvm/llvm-project/contribute>`_.
92 * If you are unsure of what a label is intended to be used for, please see the
93 `documentation for our labels <https://github.com/llvm/llvm-project/labels>`_.
95 .. _Actively working on fixing:
97 Actively working on fixing bugs
98 ===============================
100 Please remember to assign the bug to yourself if you're actively working on
101 fixing it and to unassign it when you're no longer actively working on it. You
102 unassign a bug by removing the person from the ``Assignees`` field.
106 Resolving/Closing bugs
107 ======================
109 Resolving bugs is good! Make sure to properly record the reason for resolving.
110 Examples of reasons for resolving are:
112 * If the issue has been resolved by a particular commit, close the issue with
113 a brief comment mentioning which commit(s) fixed it. If you are authoring
114 the fix yourself, your git commit message may include the phrase
115 ``Fixes #<issue number>`` on a line by itself. GitHub recognizes such commit
116 messages and will automatically close the specified issue with a reference
119 * If the reported behavior is not a bug, it is appropriate to close the issue
120 with a comment explaining why you believe it is not a bug, and adding the
123 * If the bug duplicates another issue, close it as a duplicate by adding the
124 ``duplicate`` label with a comment pointing to the issue it duplicates.
126 * If there is a sound reason for not fixing the issue (difficulty, ABI, open
127 research questions, etc), add the ``wontfix`` label and a comment explaining
128 why no changes are expected.
130 * If there is a specific and plausible reason to think that a given bug is
131 otherwise inapplicable or obsolete. One example is an open bug that doesn't
132 contain enough information to clearly understand the problem being reported
133 (e.g. not reproducible). It is fine to close such a bug, adding with the
134 ``worksforme`` label and leaving a comment to encourage the reporter to
135 reopen the bug with more information if it's still reproducible for them.
138 .. _Maintenance of metadata:
140 Maintenance of metadata
141 =======================
143 Project member with write access to the project can create new labels, but we
144 discourage adding ad hoc labels because we want to control the proliferation of
145 labels and avoid single-use labels. If you would like a new label added, please
146 open an issue asking to create an issue label and add the ``infrastructure``
147 label to the issue. The request should include a description of what the label
148 is for. Alternatively, you can ask for the label to be created on the
149 ``#infrastructure`` channel on the LLVM Discord.