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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [AMDGPU][MC][GFX9] Invalid handling of fp constants by buffer_atomic* opcodes"
href="https://bugs.llvm.org/show_bug.cgi?id=40917">40917</a>
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<th>Summary</th>
<td>[AMDGPU][MC][GFX9] Invalid handling of fp constants by buffer_atomic* opcodes
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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>enhancement
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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>dpreobrazhensky@luxoft.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<pre>buffer_atomic* opcodes accept fp inline constants for src2, but they are
encoded as 0:
buffer_atomic_add v5, off, s[8:11], 1.0 offset:4095 glc
result in the following code:
[0xff,0x4f,0x08,0xe1,0x00,0x05,0x02,0x80]
buffer_atomic_add v5, off, s[8:11], 0 offset:4095 glc
Moreover, inv2pi specified as src2 triggers an exception.</pre>
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