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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - After r297702, assertion failed: (isa<X>(Val) && "cast<Ty>() argument of incompatible type!"), function cast, file include/llvm/Support/Casting.h, line 255."
href="https://bugs.llvm.org/show_bug.cgi?id=33653">33653</a>
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<th>Summary</th>
<td>After r297702, assertion failed: (isa<X>(Val) && "cast<Ty>() argument of incompatible type!"), function cast, file include/llvm/Support/Casting.h, line 255.
</td>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</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
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>dimitry@andric.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>The fix for <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Incomplete class information in Ivar objects in libobjc2 code on Linux"
href="show_bug.cgi?id=30413">bug 30413</a>, which was committed in
<a href="https://reviews.llvm.org/rL297702">https://reviews.llvm.org/rL297702</a>, breaks at least the FreeBSD devel/sope2 and
devel/sope3 ports, but maybe also some other Objective-C programs using
GNUstep.
See the clang 5.0.0 tests in <a href="https://bugs.freebsd.org/219139">https://bugs.freebsd.org/219139</a>, in particular
<a href="http://package18.nyi.freebsd.org/data/headamd64PR219139-default/2017-05-22_13h01m42s/logs/errors/sope2-2.3.20.log">http://package18.nyi.freebsd.org/data/headamd64PR219139-default/2017-05-22_13h01m42s/logs/errors/sope2-2.3.20.log</a>
and
<a href="http://package18.nyi.freebsd.org/data/headamd64PR219139-default/2017-05-22_13h01m42s/logs/errors/sope3-3.2.8.log">http://package18.nyi.freebsd.org/data/headamd64PR219139-default/2017-05-22_13h01m42s/logs/errors/sope3-3.2.8.log</a>
Minimized test case:
// clang -cc1 -triple x86_64 -S -w -fobjc-runtime=gnustep-1.6 sope-minimized.m
typedef a;
@interface b {
a : 1;
}
@end
@implementation b
@end</pre>
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