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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Wrong codegen if constexpr member function used in later member function signature"
href="http://llvm.org/bugs/show_bug.cgi?id=19077">19077</a>
</td>
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<tr>
<th>Summary</th>
<td>Wrong codegen if constexpr member function used in later member function signature
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.4
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</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>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++11
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hstong@ca.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>I have not yet found wording which says the code is invalid (or results in UB),
so considering that Clang compiles it, it is a problem that the resulting
executable does not work as expected.
### SOURCE:
<span class="quote">> cat ceVirtualMatch.cc</span >
extern "C" int printf(const char *, ...);
struct C {
virtual void bar(int (*)[42]) { printf("%s\n", __PRETTY_FUNCTION__); }
};
struct A : C {
struct B {
static constexpr int foo() { return 0; }
};
virtual void bar(int [][B::foo() + 42])
{ printf("%s\n", __PRETTY_FUNCTION__); }
};
int main() {
A a;
C &c = a;
c.bar(0);
}
Return: 0x00:0
### ACTUAL:
<span class="quote">> clang++ ceVirtualMatch.cc -std=c++11 && ./a.out</span >
virtual void C::bar(int (*)[42])
Return: 0x00:0
### EXPECTED:
virtual void A::bar(int (*)[42])
### clang++ -v:
<span class="quote">> clang++ -v</span >
clang version 3.4 (tags/RELEASE_34/final)
Target: powerpc64-unknown-linux-gnu
Thread model: posix
Found candidate GCC installation: /usr/lib/gcc/ppc64-redhat-linux/3.4.6
Found candidate GCC installation: /usr/lib/gcc/ppc64-redhat-linux/4.4.4
Found candidate GCC installation: /usr/lib/gcc/ppc64-redhat-linux/4.4.6
Selected GCC installation: /usr/lib/gcc/ppc64-redhat-linux/4.4.6
Return: 0x00:0</pre>
</div>
</p>
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