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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [Coverage] clang crashes with 'Assertion SpellingRegion(SM, StartLoc, EndLoc).isInSourceOrder() failed.'"
href="https://bugs.llvm.org/show_bug.cgi?id=39822">39822</a>
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<th>Summary</th>
<td>[Coverage] clang crashes with 'Assertion SpellingRegion(SM, StartLoc, EndLoc).isInSourceOrder() failed.'
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</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>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>digit@google.com
</td>
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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>Created <span class=""><a href="attachment.cgi?id=21170" name="attach_21170" title="Archive containing the crash backtrace + preprocessed source file + launcher script">attachment 21170</a> <a href="attachment.cgi?id=21170&action=edit" title="Archive containing the crash backtrace + preprocessed source file + launcher script">[details]</a></span>
Archive containing the crash backtrace + preprocessed source file + launcher
script
When enabling code coverage instrumentation, compiling a C++ source file makes
Clang crash with an assertion error message that reads as:
"""
clang++: .../llvm/tools/clang/lib/CodeGen/CoverageMappingGen.cpp:789: void
(anonymous
namespace)::CounterCoverageMappingBuilder::fillGapAreaWithCount(clang::SourceLocation,
clang::SourceLocation, llvm::coverage::Counter): Assertion `SpellingRegion(SM,
StartLoc, EndLoc).isInSourceOrder()' failed.
"""
This was detected by a Chromium build bot trying to build a new source file
(see <a href="https://crbug.com/908937">https://crbug.com/908937</a> for details).</pre>
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