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    <body><span class="vcard"><a class="email" href="mailto:hfinkel@anl.gov" title="Hal Finkel <hfinkel@anl.gov>"> <span class="fn">Hal Finkel</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED INVALID - Assert in llvm::MachineRegisterInfo::clearVirtRegs: Vreg use list non-empty still"
   href="http://llvm.org/bugs/show_bug.cgi?id=15787">bug 15787</a>
        <br>
             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Status</td>
           <td>NEW
           </td>
           <td>RESOLVED
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Resolution</td>
           <td>---
           </td>
           <td>INVALID
           </td>
         </tr></table>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED INVALID - Assert in llvm::MachineRegisterInfo::clearVirtRegs: Vreg use list non-empty still"
   href="http://llvm.org/bugs/show_bug.cgi?id=15787#c8">Comment # 8</a>
              on <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED INVALID - Assert in llvm::MachineRegisterInfo::clearVirtRegs: Vreg use list non-empty still"
   href="http://llvm.org/bugs/show_bug.cgi?id=15787">bug 15787</a>
              from <span class="vcard"><a class="email" href="mailto:hfinkel@anl.gov" title="Hal Finkel <hfinkel@anl.gov>"> <span class="fn">Hal Finkel</span></a>
</span></b>
        <pre>(In reply to <a href="show_bug.cgi?id=15787#c7">comment #7</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=15787#c6">comment #6</a>)
> > I suspect the problems is here:
> > 
> >   SmallVector<std::pair<MachineOperand*, PPC::Predicate>, 4>
> >       OperandsToUpdate;
> >   SmallVector<std::pair<MachineOperand*, MachineOperand*>, 4>
> >       OperandsToSwap;
> > 
> > When you add operands to an MI, all operand pointers and references are
> > invalidated, just like a std::vector.

> Okay, thanks for looking at this! The OperandsToSwap array is going to go
> away shortly; so I'll retest with the new version.</span >

Yep; this was the problem. Thanks again!</pre>
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