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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - An LLVM commit broke our Cuda reduction code (wrong answer)"
href="https://llvm.org/bugs/show_bug.cgi?id=31240">31240</a>
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<th>Summary</th>
<td>An LLVM commit broke our Cuda reduction code (wrong answer)
</td>
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<th>Product</th>
<td>clang
</td>
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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>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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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>CUDA
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>crtrott@sandia.gov
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>In our Kokkos unit tests (github.com/kokkos/kokkos) we had at some point
everything working for compilation of the Cuda backend with clang.
With the current head our reduction tests fail again.
I tracked it down to this commit:
Codegen: Tail-duplicate during placement.
git-svn-id: <a href="https://llvm.org/svn/llvm-project/llvm/trunk@283934">https://llvm.org/svn/llvm-project/llvm/trunk@283934</a>
91177308-0d34-0410-b5e6-96231b3b80d8
I.e. this works:
Clang: 204eb555222d86837d865007c1526018e391bf67
LLVM: 6f185f662a9dc692c12417784c9756bc3212cde8
And this Fails:
Clang: 204eb555222d86837d865007c1526018e391bf67
LLVM: 2a18018c101b6b4f40049a2ab951cda505074970
(I am using github.com/llvm-mirror)
I don't have a trivial reproducer right now.</pre>
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