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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - error in backend: Cannot select: 0x1460f44e8: i64 = extract_vector_elt 0x1461398b0"
href="https://bugs.llvm.org/show_bug.cgi?id=39334">39334</a>
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<th>Summary</th>
<td>error in backend: Cannot select: 0x1460f44e8: i64 = extract_vector_elt 0x1461398b0
</td>
</tr>
<tr>
<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>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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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>joel@jms.id.au
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>building the Linux kernel for powerpc using clang trunk:
CC arch/powerpc/kernel/time.o
fatal error: error in backend: Cannot select: 0x1460f44e8: i64 =
extract_vector_elt 0x1461398b0,
TargetConstant:i32<1>
0x1461398b0: v2i64 = PPCISD::XXREVERSE 0x1461399e8
0x1461399e8: v2i64 = BUILD_VECTOR 0x1460f4140, 0x1460f4140
0x1460f4140: i64,ch = CopyFromReg 0x146038b18, Register:i64 %9
0x146139298: i64 = Register %9
0x1460f4140: i64,ch = CopyFromReg 0x146038b18, Register:i64 %9
0x146139298: i64 = Register %9
0x1460f4ca0: i32 = TargetConstant<1>
In function: scan_dispatch_log
clang-8: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 8.0.0 (trunk 344685)
Target: powerpc64le-unknown-linux-gnu
Thread model: posix
InstalledDir: /scratch/joel/llvm-build/bin</pre>
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