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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - slp-vectorize-aggressive causing "Invalid Operands for Select""
href="http://llvm.org/bugs/show_bug.cgi?id=20852">20852</a>
</td>
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<th>Summary</th>
<td>slp-vectorize-aggressive causing "Invalid Operands for Select"
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</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>
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<th>Component</th>
<td>Loop Optimizer
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ryan.osial@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>While compiling Firefox 32, found that -fslp-vectorize-aggressive caused an
error:
ryan@osnap-linux ~/projects/nobackup/llvm/git/llvm/build $
./Debug+Asserts/bin/clang++ /tmp/TiledContentClient.cpp -c
-fslp-vectorize-aggressive -pipe -march=native -fno-exceptions
-fno-strict-aliasing -fno-rtti -fno-exceptions -fno-math-errno -std=gnu++0x
-pthread -pipe -O2
../../dist/include/jspubtd.h:512:51: warning: offset of on non-standard-layout
type 'js::PerThreadDataFriendFields::RuntimeDummy' [-Winvalid-offsetof]
static const size_t RuntimeMainThreadOffset =
__builtin_offsetof(RuntimeDummy, mainThread);
Invalid operands for select instruction!
%.retval.sroa.6.12.vec.insert.i75 = select <2 x i1> %or.cond.i74, <4 x float>
zeroinitializer, <4 x float> %sub.i62
fatal error: error in backend: Broken function found, compilation aborted!
clang: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 3.6.0 (<a href="http://llvm.org/git/clang.git">http://llvm.org/git/clang.git</a>
77f909b268d79378221b4163112596afe177d177) (<a href="http://llvm.org/git/llvm.git">http://llvm.org/git/llvm.git</a>
b20b9bf9fd60ba1d769e33ff6680099473d59a7d)
Target: x86_64-unknown-linux-gnu
Thread model: posix</pre>
</div>
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