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    <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 `!IndexReg && "IndexReg already set!"' failed. in MC"
   href="https://bugs.llvm.org/show_bug.cgi?id=33862">33862</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Assertion `!IndexReg && "IndexReg already set!"' failed. in MC
          </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>MC
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>andrew.v.tischenko@gmail.com
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>davide@freebsd.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org, llvm-dev@redking.me.uk, simon.f.whittaker@gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>$ ./llvm-mc -triple x86_64-unknown-unknown -x86-asm-syntax=intel patatino.s

llvm-mc: ../lib/Target/X86/AsmParser/X86AsmParser.cpp:535: void
{anonymous}::X86AsmParser::IntelExprStateMachine::onRegister(unsigned int):
Assertion `!IndexReg && "IndexReg already set!"' failed.


$ cat patatino.s
  lea RDX, [4 * RAX + 27 * RBX + _pat]


Assigning this to Andrew as he's looking into this area already.</pre>
        </div>
      </p>


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