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<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Assertion `Val && "isa<> used on a null pointer"' failed"
href="http://llvm.org/bugs/show_bug.cgi?id=22820">22820</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Assertion `Val && "isa<> used on a null pointer"' failed
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</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>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>alexis.breust@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=13990" name="attach_13990" title="Launch script">attachment 13990</a> <a href="attachment.cgi?id=13990&action=edit" title="Launch script">[details]</a></span>
Launch script
Hello everyone,
I made a bit of work to track it down to a minimal example.
Here what I came with:
#include <cmath>
void init(const double a) {
double ua = (a < 0.0)? -a : a;
if (ua > 13.0)
ua = std::fmod(ua, 13.0);
}
int main(void) {
init(1.0);
return 0;
}
This produces:
clang: /home/breusta/tmp/llvm/include/llvm/Support/Casting.h:95: static bool
llvm::isa_impl_cl<To, const From*>::doit(const From*) [with To = llvm::MDNode;
>From = llvm::Metadata]: Assertion `Val && "isa<> used on a null pointer"'
failed.
(...)
clang version 3.6.0 (trunk 223924)</pre>
</div>
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