<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Assertion failed: (i == DstIdx || !MI->getOperand(i).isReg() || MI->getOperand(i).getReg() != RegA), function processTiedPairs,"
href="https://bugs.llvm.org/show_bug.cgi?id=40985">40985</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Assertion failed: (i == DstIdx || !MI->getOperand(i).isReg() || MI->getOperand(i).getReg() != RegA), function processTiedPairs,
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dimitry@andric.com
</td>
</tr>
<tr>
<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>As reported in <a href="https://bugs.freebsd.org/234232">https://bugs.freebsd.org/234232</a>, building the
devel/aws-checksums port (see also <<a href="https://github.com/awslabs/aws-checksums">https://github.com/awslabs/aws-checksums</a>>)
results in a clang assertion:
Assertion failed: (i == DstIdx || !MI->getOperand(i).isReg() ||
MI->getOperand(i).getReg() != RegA), function processTiedPairs, file
lib/CodeGen/TwoAddressInstructionPass.cpp, line 1547.
Minimized test case:
/* clang -cc1 -triple x86_64-- -S crc32c_sse42_asm-min.c */
int a, b;
void c() { asm("" : "+c"(b) : "c"(a)); }</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>