<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 - Function std::terminate can be created without type metadata resulting in assertion failure linking libc++ with ThinLTO + cfi-icall"
href="https://bugs.llvm.org/show_bug.cgi?id=33752">33752</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Function std::terminate can be created without type metadata resulting in assertion failure linking libc++ with ThinLTO + cfi-icall
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</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>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Interprocedural Optimizations
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>peter@pcc.me.uk
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>$ cat term.cpp
namespace test0 {
void foo() {}
struct A {
A();
~A();
};
void test() noexcept {
A a;
foo();
}
} // namespace test0
namespace std {
void terminate() {}
}
void f(void (*p)()) {
p();
}
void *g();
int main(int argc, char **argv) {
f((void (*)())g());
}
$ cat term2.cpp
namespace std {
void terminate();
}
void * g() {
return (void *)&std::terminate;
}
$ ~/src2/llvm-project/ra/bin/clang -fsanitize=cfi-icall term.cpp term2.cpp
-flto=thin -std=c++11 -fuse-ld=lld
ld.lld: lib/Transforms/IPO/LowerTypeTests.cpp:860: void (anonymous
namespace)::LowerTypeTestsModule::importFunction(llvm::Function *, bool):
Assertion `isDefinition' failed.</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>