<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 - Broken initialization of objects in __constant AS in C++ mode"
   href="https://bugs.llvm.org/show_bug.cgi?id=42566">42566</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Broken initialization of objects in __constant AS in C++ mode
          </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>

        <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>OpenCL
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>anastasia.stulova@arm.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>anastasia.stulova@arm.com, llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>When compiling with -cl-std=++ the following test case a number of errors seem
to be produced incorrectly:

struct X {
 int x;
 X(int x) __constant : x(x) {}
};

kernel void barX() {
 __constant X x(0); // error: initializer element is not a compile-time
constant
}

struct Y {
 int y;
};

kernel void barY() {
 __constant Y y = { 0 }; // Okay
}

struct Z {
 Z() __constant = default;
};

kernel void barZ() {
 __constant Z z1; // error: variable in constant address space must be
initialized
 __constant Z z2 = Z(); // error: no matching constructor for initialization of
'Z'
                        // note: candidate constructor ignored: cannot be used
to construct an object in address space unqualified
}</pre>
        </div>
      </p>


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