<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - isCXX11ConstantExpr related segfault"
href="https://bugs.llvm.org/show_bug.cgi?id=36645">36645</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>isCXX11ConstantExpr related segfault
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</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++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>taruti@taruti.net
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=20019" name="attach_20019" title="clang 6.0 crash">attachment 20019</a> <a href="attachment.cgi?id=20019&action=edit" title="clang 6.0 crash">[details]</a></span>
clang 6.0 crash
OpenCPN recently enabled C++11 and when trying out clang instead of gcc I
stumbled upon a crash in clang. This seems to occur on both 6.0.0-1 and a trunk
version in Debian sid.
The crash goes away with -std=c++98.
This is enough to reproduce this (produced by multidelta)
```
struct DATUM {
const char *name;
short ellipsoid;
};
struct DATUM const gDatum[] = {
{ "Adindan", 5}
};
void datumParams(short datum, double *a, double *es) {
extern struct DATUM const gDatum[];
}
static int isWGS84(int i) {
if (gDatum[i].ellipsoid != gDatum[0].ellipsoid) return i;
```
Which crashes with:
clang++-7 -c georef.ii -O0 -emit-llvm -o /dev/null
clang++-6.0 -c georef.ii -O0 -emit-llvm -o /dev/null
and does not crash with -std=c++98.
Attached are logs of crashes from both clang versions and a preprocessed
original source file. Original source is at <a href="https://github.com/OpenCPN/OpenCPN">https://github.com/OpenCPN/OpenCPN</a></pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>