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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 - piglit.spec.arb_separate_shader_objects.execution.layout-location-named-block regression"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=95242">95242</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>piglit.spec.arb_separate_shader_objects.execution.layout-location-named-block regression
          </td>
        </tr>

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

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

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </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>mark.a.janes@intel.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-3d-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>mesa 0d88b15f073d09afed1747d9cdde98f15c7aa28d regressed this test:

Standard Output

/tmp/build_root/m64/lib/piglit/bin/shader_runner
/tmp/build_root/m64/lib/piglit/tests/spec/arb_separate_shader_objects/execution/layout-location-named-block.shader_test
-auto
piglit: debug: Requested an OpenGL 3.2 Core Context, and received a matching
3.3 context

Standard Error

Failed to link:
error: fragment shader input `name2' with explicit location has no matching
output
error: fragment shader input `name' with explicit location has no matching
output

------------------------------------------------------------
Author:     Timothy Arceri <<a href="mailto:timothy.arceri@collabora.com">timothy.arceri@collabora.com</a>>
glsl: cross validate varyings with a component qualifier

This change checks for component overlap, including handling overlap of
locations and components by doubles. Previously there was no validation
for assigning explicit locations to a location used by the second half
of a double.

V3: simplify handling of doubles and fix double component aliasing
detection

V2: fix component matching for matricies

Reviewed-by: Anuj Phogat <<a href="mailto:anuj.phogat@gmail.com">anuj.phogat@gmail.com</a>>
Reviewed-by: Edward O'Callaghan <<a href="mailto:eocallaghan@alterapraxis.com">eocallaghan@alterapraxis.com</a>>
Reviewed-by: Kenneth Graunke <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>></pre>
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