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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Strange code in DwarfUnit::addRegisterOffset"
href="http://llvm.org/bugs/show_bug.cgi?id=21761">21761</a>
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<th>Summary</th>
<td>Strange code in DwarfUnit::addRegisterOffset
</td>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hjl.tools@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>DwarfUnit::addRegisterOffset in lib/CodeGen/AsmPrinter/DwarfUnit.cpp has
/// addRegisterOffset - Add register offset.
bool DwarfUnit::addRegisterOffset(DIELoc &TheDie, unsigned Reg,
int64_t Offset) {
const TargetRegisterInfo *RI = Asm->TM.getSubtargetImpl()->getRegisterInfo();
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
int DWReg = RI->getDwarfRegNum(Reg, false);
if (DWReg < 0)
return false;
const TargetRegisterInfo *TRI =
Asm->TM.getSubtargetImpl()->getRegisterInfo();
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
if (Reg == TRI->getFrameRegister(*Asm->MF))
What is the purpose to have RI and TRI. Aren't they the same?</pre>
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