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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed with template destructor error"
href="https://bugs.llvm.org/show_bug.cgi?id=33168">33168</a>
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<th>Summary</th>
<td>Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed with template destructor error
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>4.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>russell_gallop@sn.scee.net
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Tested at r303428. This code is invalid but still shouldn't crash. Before
r283789 the error is reported without a crash.
$ cat test.cpp
struct A {
template<class T> ~A() { T t; };
};
$ clang -c test.cpp
test.cpp:2:19: error: destructor cannot be declared as a template
template<class T> ~A() { T t; };
^
clang-5.0: <...>/llvm/include/llvm/Support/Casting.h:237: typename
llvm::cast_retty<X, Y*>::ret_type llvm::cast(Y*) [with X =
clang::CXXDestructorDecl; Y = clang::NamedDecl; typename llvm::cast_retty<X,
Y*>::ret_type = clang::CXXDestructorDecl*]: Assertion `isa<X>(Val) &&
"cast<Ty>() argument of incompatible type!"' failed.
This bisects to:
commit 48fe699daa8509cf338f3c041ab486378cadb155
Author: Richard Smith <<a href="mailto:richard-llvm@metafoo.co.uk">richard-llvm@metafoo.co.uk</a>>
Date: Mon Oct 10 18:54:32 2016 +0000
Re-commit r283722, reverted in r283750, with a fix for a CUDA-specific use
of
past-the-end iterator.
Original commit message:
P0035R4: Semantic analysis and code generation for C++17 overaligned
allocation.
git-svn-id: <a href="https://llvm.org/svn/llvm-project/cfe/trunk@283789">https://llvm.org/svn/llvm-project/cfe/trunk@283789</a>
91177308-0d34-0410-b5e6-96231b3b80d8</pre>
</div>
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