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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [AMDGPU] Add tests for fneg dag combining multi-use op"
href="https://bugs.llvm.org/show_bug.cgi?id=41500">41500</a>
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<th>Summary</th>
<td>[AMDGPU] Add tests for fneg dag combining multi-use op
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<th>Product</th>
<td>libraries
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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>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Backend: AMDGPU
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>tpr.llvm@botech.co.uk
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<pre>D60633 fixes a bug where fneg was dag combining a multi-use fadd, but creating
a new fadd got folded, and the dag combiner asserted.
As part of that fix, I also added precautionary fixes for the same situation
with fneg combinining with fmul, fma, fmax, fmin, fmed3. However I do not have
reproducers for those cases.
This bug is to create reproducers for a hypothetical assert for fneg combining
with each of those ops, when the fix in D60633 is not present.</pre>
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