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      <base href="https://llvm.org/bugs/" />
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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 --- - [mc][gfx7] Some VOP3 F32 insns (v_cubeid_f32, v_fma_f32 etc) -- negative inline constants not supported"
   href="https://llvm.org/bugs/show_bug.cgi?id=28170">28170</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[mc][gfx7] Some VOP3 F32 insns (v_cubeid_f32, v_fma_f32 etc) -- negative inline constants not supported
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libraries
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Windows NT
          </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>Backend: AMDGPU
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>artem.tamazov@amd.com
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>artem.tamazov@amd.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org, nikolay.haustov@amd.com
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The following instructions have issues with negative inline constants:
<span class="quote">> v_cubeid_f32
> v_cubema_f32
> v_cubesc_f32
> v_cubetc_f32
> v_div_fixup_f32
> v_div_fmas_f32
> v_fma_f32
> v_mad_f32
> v_mad_legacy_f32
> v_max3_f32
> v_med3_f32
> v_min3_f32
> v_mullit_f32</span >

Number of failing lit1 tests (-search=simple) = 4173. 

I am almost sure that issue appears for other sub-targets as well, e.g. gfx8

Tested with r272673 (git # da10a460d7c98278561225fda90855b303675f35)</pre>
        </div>
      </p>
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