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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang-format performance issues with nested lambdas - 3h to prettify a single file"
href="https://bugs.llvm.org/show_bug.cgi?id=48229">48229</a>
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<th>Summary</th>
<td>clang-format performance issues with nested lambdas - 3h to prettify a single file
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>11.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Formatter
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>officesamurai@gmail.com
</td>
</tr>
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<th>CC</th>
<td>djasper@google.com, klimek@google.com, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=24184" name="attach_24184" title="The code in question">attachment 24184</a> <a href="attachment.cgi?id=24184&action=edit" title="The code in question">[details]</a></span>
The code in question
It looks like the formatting of nested lambdas has exponential cost.
---
$ /home/brd/soft/llvm-11.0.0/bin/clang-format --version
clang-format version 11.0.0
$ time cat nested_lambdas.cpp | /home/brd/soft/llvm-11.0.0/bin/clang-format
-style=LLVM
void foo() {
--- skipped ---
}
real 182m4.186s
user 181m57.792s
sys 0m3.568s
---</pre>
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