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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Compilation time is incredible slow"
href="https://bugs.llvm.org/show_bug.cgi?id=41246">41246</a>
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<th>Summary</th>
<td>Compilation time is incredible slow
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>unspecified
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<th>Hardware</th>
<td>Other
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>jacob@jacob.remcomp.fr
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<pre>I have compiled 2.5MB of C source code with clang 5.0 and 9.0.
Machine: ARM64 quadcore CPU, with 4GB RAM and SSD of 1TB.
Compiling with optimizations ON (-O2)
Compiler Time
lcc 8.7 seconds
gcc 2minutes 30 seconds
clang 5.0 26 minutes
clang 9.0 32 minutes
This is just unbearable and makes clang unusable.
Thanks in advance for your attention.
jacob navia</pre>
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