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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Cannot initialize parameter of different address space if class / function is templated"
href="https://bugs.llvm.org/show_bug.cgi?id=42390">42390</a>
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<th>Summary</th>
<td>Cannot initialize parameter of different address space if class / function is templated
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>OpenCL
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>drohr@jwdt.org
</td>
</tr>
<tr>
<th>CC</th>
<td>anastasia.stulova@arm.com, llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>This might be related to bugs 42033 or 42385.
The following code (compiled with -cl-std=c++)
template <class T>
struct x {
x<T>& operator=(const x<T>& xx) {
y = xx.y;
return *this;
}
int y;
};
template <class T>
struct x2 {
void foo(x<T>* xx) {
m[0] = *xx;
}
x<T> m[2];
};
void bar(__global x<int>* xx, __global x2<int>* bar)
{
bar->foo(xx);
}
fails with
test.cl:21:12: error: cannot initialize a parameter of type 'x<int> *' with an
lvalue of type '__global x<int> *'
bar->foo(xx);
^~
test.cl:13:18: note: passing argument to parameter 'xx' here
void foo(x<T>* xx) {
^
test.cl:5:12: error: binding value of type '__generic x<...>' to reference to
type 'x<...>' drops <<ERROR>> qualifiers
return *this;
^~~~~
test.cl:14:10: note: in instantiation of member function 'x<int>::operator='
requested here
m[0] = *xx;
^
test.cl:21:8: note: in instantiation of member function 'x2<int>::foo'
requested here
bar->foo(xx);
If I remove all the templates (which actually don't do anything), it compiles
correctly.</pre>
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</p>
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