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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang crashed during compilation - template recursive constexpr function"
href="https://bugs.llvm.org/show_bug.cgi?id=42581">42581</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang crashed during compilation - template recursive constexpr function
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>8.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>C++14
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>vukki.starborn@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>blitzrakete@gmail.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=22223" name="attach_22223" title="source,full backtrace and other data">attachment 22223</a> <a href="attachment.cgi?id=22223&action=edit" title="source,full backtrace and other data">[details]</a></span>
source,full backtrace and other data
clang crashed during compilation - template recursive constexpr function
full backtrace and other data are in the attachment.
source:
template <int n> constexpr int f()
{
return n<=1 ? 1: (n*f<n-1>());
}
template <int l>
struct cti
{
};
int main(int argc,char * argv[])
{
cti<f<3>()> l;
return 0;
}
backtrace's end:
#251 0x00007f355c6df876 (/usr/bin/../lib64/../lib64/libclangSema.so.8+0x61f876)
#252 0x00007f355c6cd42a clang::Sema::SubstStmt(clang::Stmt*,
clang::MultiLevelTemplateArgumentList const&)
(/usr/bin/../lib64/../lib64/libclangSema.so.8+0x60d42a)
#253 0x00007f355c6fd106
clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation,
clang::FunctionDecl*, bool, bool, bool)
(/usr/bin/../lib64/../lib64/libclangSema.so.8+0x63d106)
#254 0x00007f355c4400f3
clang::Sema::MarkFunctionReferenced(clang::SourceLocation,
clang::FunctionDecl*, bool)
(/usr/bin/../lib64/../lib64/libclangSema.so.8+0x3800f3)
#255 0x00007f355c4434ee (/usr/bin/../lib64/../lib64/libclangSema.so.8+0x3834ee)
clang-8.0: error: unable to execute command: Segmentation fault (core dumped)
clang-8.0: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 8.0.0 (tags/RELEASE_800/final 356365)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
clang-8.0: note: diagnostic msg: PLEASE submit a bug report to
<a href="https://bugs.llvm.org/">https://bugs.llvm.org/</a> and include the crash backtrace, preprocessed source,
and associated run script.</pre>
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