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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [icl][bisected] regression on piglit arb_gpu_shader_int 64.execution.fs-ishl-then-* tests"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=110309">110309</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[icl][bisected] regression on piglit arb_gpu_shader_int 64.execution.fs-ishl-then-* tests
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Keywords</th>
          <td>bisected, regression
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Drivers/DRI/i965
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>idr@freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>clayton.a.craft@intel.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-3d-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=143848" name="attach_143848" title="output from bisected commit with INTEL_DEBUG=fs">attachment 143848</a> <a href="attachment.cgi?id=143848&action=edit" title="output from bisected commit with INTEL_DEBUG=fs">[details]</a></span>
output from bisected commit with INTEL_DEBUG=fs

The following tests regressed in CI:

piglit.spec.arb_gpu_shader_int64.execution.fs-ishl-then-ushr-loop
piglit.spec.arb_gpu_shader_int64.execution.fs-ishl-then-ishr
piglit.spec.arb_gpu_shader_int64.execution.fs-ishl-then-ishr-loop
piglit.spec.arb_gpu_shader_int64.execution.fs-ishl-then-ushr


Output from bisected and previous commits run with INTEL_DEBUG=fs is attached.

Bisected to the following commit:

commit cbad201c2b34297dda11ffa414de2ef781225259
Author: Ian Romanick <<a href="mailto:ian.d.romanick@intel.com">ian.d.romanick@intel.com</a>>
Date:   Wed Feb 27 20:12:46 2019 -0800

    nir/algebraic: Add missing 64-bit extract_[iu]8 patterns

    No shader-db changes on any Intel platform.

    v2: Use a loop to generate patterns.  Suggested by Jason.

    v3: Fix a copy-and-paste bug in the extract_[ui] of ishl loop that would
    replace an extract_i8 with and extract_u8.  This broke ~180 tests.  This
    bug was introduced in v2.

    Reviewed-by: Matt Turner <<a href="mailto:mattst88@gmail.com">mattst88@gmail.com</a>> [v1]
    Reviewed-by: Dylan Baker <<a href="mailto:dylan@pnwbakers.com">dylan@pnwbakers.com</a>> [v2]
    Acked-by: Jason Ekstrand <<a href="mailto:jason@jlekstrand.net">jason@jlekstrand.net</a>> [v2]</pre>
        </div>
      </p>


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