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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [AMDGPU][MC] Incorrect parsing of operand separators of MTBUF instructions"
href="https://bugs.llvm.org/show_bug.cgi?id=46403">46403</a>
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<th>Summary</th>
<td>[AMDGPU][MC] Incorrect parsing of operand separators of MTBUF instructions
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<th>Product</th>
<td>libraries
</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>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</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>dpreobrazhensky@luxoft.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>MTBUF syntax expects that DFMT/NFMT operands are separated by commas, for
example:
tbuffer_load_format_x v1, off, s[4:7], dfmt:15, s1
However the parser seems to skip next token after DFMT/NFMT without checking
that this is a comma. This bug results in hard to understand syntax errors. For
example, the following code fails to compile with an error "too few operands
for instruction":
tbuffer_load_format_x v1, off, s[4:7], dfmt:15 s1
The following code is also compiled w/o any issues:
tbuffer_load_format_x v1, off, s[4:7], dfmt:15 XXXX nfmt:2 YYYY s1</pre>
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