<html>
    <head>
      <base href="http://llvm.org/bugs/" />
    </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 --- - [AArch64] Suspect code near ICE on memset call."
   href="http://llvm.org/bugs/show_bug.cgi?id=20147">20147</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[AArch64] Suspect code near ICE on memset call.
          </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>Linux
          </td>
        </tr>

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

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

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Backend: AArch64
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>mcrosier@codeaurora.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>Hao.Liu@arm.com, james.molloy@arm.com, llvmbugs@cs.uiuc.edu, t.p.northover@gmail.com
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>In r211960, I fixed an ICE in getMemsetValue.

The segment of code just below the fix looks suspect as well, but I was unable
to generate a test case in my quick attempt.

Specifically, line 3638 seems to assume the VT of a vector element is either
f32 or f64.

3636     else if (VT.isVector()) {
3637     unsigned NumElts = VT.getVectorNumElements();
3638     MVT EltVT = (VT.getVectorElementType() == MVT::f32) ? MVT::i32 :
MVT::i64;
3639     return DAG.getNode(ISD::BITCAST, dl, VT,
3640     DAG.getConstant(0, EVT::getVectorVT(*DAG.getContext(),
3641     EltVT, NumElts)));
3642     } else

Hoping someone wouldn't mind taking a look.</pre>
        </div>
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