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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - ICE in code gen for AVX compiling qtransform.cpp Qt 5.8"
href="https://llvm.org/bugs/show_bug.cgi?id=29133">29133</a>
</td>
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<tr>
<th>Summary</th>
<td>ICE in code gen for AVX compiling qtransform.cpp Qt 5.8
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>thiago@kde.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>When compiling, I got:
fatal error: error in backend: Cannot select: 0x3bb04a0: v4f64 =
X86ISD::SUBV_BROADCAST 0x3bae790
0x3bae790: v2f64,ch = load<LD16[%154](align=8)> 0x2795f60, 0x3badbc0,
undef:i64
0x3badbc0: i64 = add 0x3b7fb10, Constant:i64<32>
0x3b7fb10: i64,ch = CopyFromReg 0x2795f60, Register:i64 %vreg22
0x3b7b180: i64 = Register %vreg22
0x3bae090: i64 = Constant<32>
0x3bae410: i64 = undef
In function: _ZNK10QTransformmlERKS_
clang-4.0: error: clang frontend command failed with exit code 70 (use -v to
see invocation)
openSUSE Linux clang version 4.0.0 (trunk 279424) (based on LLVM 4.0.0svn)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/tjmaciei/bin
clang-4.0: note: diagnostic msg: PLEASE submit a bug report to
<a href="http://llvm.org/bugs/">http://llvm.org/bugs/</a> and include the crash backtrace, preprocessed source, and
associated run script.
The above happens with -march=sandybridge and any Intel processors more recent
than SNB. There's no ICE with -march=westmere or older processors, nor with
-march=sandybridge -mno-avx.</pre>
</div>
</p>
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