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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp: PVS-Studio: V501"
href="https://bugs.llvm.org/show_bug.cgi?id=32265">32265</a>
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<th>Summary</th>
<td>llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp: PVS-Studio: V501
</td>
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<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Backend: Hexagon
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>razmyslov@viva64.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>We have found a bug using PVS-Studio tool: PVS-Studio is a static code analyzer
for C, C++ and C#: <a href="https://www.viva64.com/en/pvs-studio/">https://www.viva64.com/en/pvs-studio/</a>
Analyzer warning: V501 There are identical sub-expressions 'RA.getSubReg() !=
0' to the left and to the right of the '||' operator. hexagonearlyifconv.cpp
485
unsigned HexagonEarlyIfConversion::computePhiCost(....) const {
....
const MachineOperand &RA = MI.getOperand(1);
const MachineOperand &RB = MI.getOperand(3);
assert(RA.isReg() && RB.isReg());
// Must have a MUX if the phi uses a subregister.
if (RA.getSubReg() != 0 || RA.getSubReg() != 0) { // <= RB ???
Cost++;
continue;
}
....
}</pre>
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