<html>
    <head>
      <base href="https://llvm.org/bugs/" />
    </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 --- - coroutine builtins "argument of incompatible type""
   href="https://llvm.org/bugs/show_bug.cgi?id=31509">31509</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>coroutine builtins "argument of incompatible type"
          </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>All
          </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>

        <tr>
          <th>Component</th>
          <td>-New Bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>schuett@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=17798" name="attach_17798" title="Reproducer">attachment 17798</a> <a href="attachment.cgi?id=17798&action=edit" title="Reproducer">[details]</a></span>
Reproducer

Attachments includes stdout, reproducer, and clang call.

What I would like to do is the following:

void foo() {
 __builtin_coro_suspend();
}

void bar() {
  ...
  foo();
  ...
  foo();
}

void *coro() {
  __builtin_coro_id(...);
  __builtin_coro_begin(...);

  bar();

  free(__builtin_coro_free(...))
  __builtin_coro_end(0,0);
  return hdl;
}

Is there anyway to express this?</pre>
        </div>
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