<html>
    <head>
      <base href="https://bugs.llvm.org/">
    </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 - Assertion `idx < size()' failed in combineX86ShufflesRecursively with -O3 -march=skx"
   href="https://bugs.llvm.org/show_bug.cgi?id=46178">46178</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Assertion `idx < size()' failed in combineX86ShufflesRecursively with -O3 -march=skx
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>new-bugs
          </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>enhancement
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>new bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>Vsevolod.Livinskij@frtk.ru
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Error:
<span class="quote">>$ clang++ -O3 -march=skx -c func.cpp</span >
clang++: /llvm/include/llvm/ADT/SmallVector.h:176: T&
llvm::SmallVectorTemplateCommon<T, <template-parameter-1-2>
<span class="quote">>::operator[](llvm::SmallVectorTemplateCommon<T, <template-parameter-1-2>
>::size_type) [with T = int; <template-parameter-1-2> = void;</span >
llvm::SmallVectorTemplateCommon<T, <template-parameter-1-2> >::reference =
int&; llvm::SmallVectorTemplateCommon<T, <template-parameter-1-2> >::size_type
= long unsigned int]: Assertion `idx < size()' failed.

Reproducer:

extern short a[];
void b(long d, long e[][6][70]) {
  for (int c = 0; c < 16; c += (int)d + 702798106)
    a[c] = char(e[1][2][c]);
}

LLVM version:
clang version 11.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
16437992cac249f6fe1efd392d20e3469b47e39e)</pre>
        </div>
      </p>


      <hr>
      <span>You are receiving this mail because:</span>

      <ul>
          <li>You are on the CC list for the bug.</li>
      </ul>
    </body>
</html>