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      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Khronos conformance test ES3-CTS.shaders.struct.uniform.sampler_nested_vertex assert fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=79085">79085</a>
          </td>
        </tr>

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

        <tr>
          <th>Summary</th>
          <td>Khronos conformance test ES3-CTS.shaders.struct.uniform.sampler_nested_vertex assert fails
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-3d-bugs@lists.freedesktop.org
          </td>
        </tr>

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

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>anuj.phogat@gmail.com
          </td>
        </tr>

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

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

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

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

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Tested with mesa master (46737ce) on IVB. I haven't tested but looks like issue
can also be reproduced on HSW and BDW. 

Test log:
glcts: brw_reg.h:240: brw_reg brw_reg(unsigned int, unsigned int, unsigned int,
unsigned int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned
int): Assertion `nr < 128' failed.

Stack trace:
#3  0x0000003b90a2ea02 in __GI___assert_fail (assertion=0x7ffff7495ea6 "nr <
128", file=0x7ffff7495e9c "brw_reg.h", line=240, function=0x7ffff7496700
<_ZZ7brw_regE19__PRETTY_FUNCTION__> "brw_reg brw_reg(unsigned int, unsigned
int, unsigne
d int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int,
unsigned int)") at assert.c:101
#4  0x00007ffff7391358 in brw_reg (file=1, nr=16384, subnr=4, type=4,
vstride=3, width=2, hstride=1, swizzle=228, writemask=15) at brw_reg.h:240
#5  0x00007ffff739157c in brw_vec4_reg (file=1, nr=16384, subnr=4) at
brw_reg.h:313
#6  0x00007ffff739175c in brw_vec4_grf (nr=16384, subnr=4) at brw_reg.h:574
#7  0x00007ffff7391e37 in brw::vec4_instruction::get_src (this=0x18db9a0,
prog_data=0x7fffffffd1f0, i=0) at brw_vec4_generator.cpp:107
#8  0x00007ffff7394ed5 in brw::vec4_generator::generate_code
(this=0x7fffffffc2d0, instructions=0x7fffffffc3b0) at
brw_vec4_generator.cpp:1308
#9  0x00007ffff73951e6 in brw::vec4_generator::generate_assembly
(this=0x7fffffffc2d0, instructions=0x7fffffffc3b0,
assembly_size=0x7fffffffd394) at brw_vec4_generator.cpp:1365
#10 0x00007ffff738ff6e in brw_vs_emit (brw=0x7ffff6d11040, prog=0x18e60f0,
c=0x7fffffffd2e0, prog_data=0x7fffffffd1f0, mem_ctx=0x1c54200,
final_assembly_size=0x7fffffffd394) at brw_vec4.cpp:1850
#11 0x00007ffff73c1d6c in do_vs_prog (brw=0x7ffff6d11040, prog=0x18e60f0,
vp=0x1c45860, key=0x7fffffffd3f0) at brw_vs.c:293
#12 0x00007ffff73c2a0a in brw_vs_precompile (ctx=0x7ffff6d11040,
prog=0x18e60f0) at brw_vs.c:542
#13 0x00007ffff7382ee4 in brw_shader_precompile (ctx=0x7ffff6d11040,
prog=0x18e60f0) at brw_shader.cpp:78
#14 0x00007ffff73836f8 in brw_link_shader (ctx=0x7ffff6d11040,
shProg=0x18e60f0) at brw_shader.cpp:274
#15 0x00007ffff71f1d5a in _mesa_glsl_link_shader (ctx=0x7ffff6d11040,
prog=0x18e60f0) at program/ir_to_mesa.cpp:3092</pre>
        </div>
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