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    <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 - Add a flag to disable emitting the custom event instrumentation points"
   href="https://bugs.llvm.org/show_bug.cgi?id=36926">36926</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Add a flag to disable emitting the custom event instrumentation points
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>XRay
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </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>Clang
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dberris@google.com
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>dberris@google.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>This allows us to control whether or not we want to emit the custom event
instrumentation points. We want this for the following reasons:

- The instrumentation points are not supported in all platforms yet. We can set
the default for these flags differently for different targets/front-ends.
- The instrumentation points are currently expensive in terms of impact in code
size as well as runtime overheads.
- Provide more controls of the XRay instrumentation features we're providing at
compile-time to allow users to make trade-offs on which kinds of sleds should
be emitted (as we add more instrumentation point types in the future).</pre>
        </div>
      </p>


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