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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Assertion failed: ((PartVT.isInteger() || PartVT == MVT::x86mmx) && ValueVT.isInteger() && "Unknown mismatch!"), function getCopyToParts"
href="https://llvm.org/bugs/show_bug.cgi?id=23229">23229</a>
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<th>Summary</th>
<td>Assertion failed: ((PartVT.isInteger() || PartVT == MVT::x86mmx) && ValueVT.isInteger() && "Unknown mismatch!"), function getCopyToParts
</td>
</tr>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<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
</td>
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<th>Status</th>
<td>NEW
</td>
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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>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dimitry@andric.com
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>As reported in <a href="https://bugs.freebsd.org/199450">https://bugs.freebsd.org/199450</a>, clang crashes with the
following assertion failure in SpiderMonkey's FoldConstants.cpp file, when
compiled for the armv6--freebsd11.0-gnueabihf target:
Assertion failed: ((PartVT.isInteger() || PartVT == MVT::x86mmx) &&
ValueVT.isInteger() && "Unknown mismatch!"), function getCopyToParts, file
/share/dim/src/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp,
line 399.
This also reproduces with clang trunk r234702.
Reduced test case is:
======================================================================
a, b, c, d;
double e;
fn1() { asm("" : "=r"(a), "=&r"(b), "=&r"(c), "=&r"(d), "=&r"(e) : "4"(e)); }
======================================================================
Compile with:
clang -cc1 -triple armv6 -emit-obj -target-cpu arm1176jzf-s testcase.c
Note: the target-cpu setting is essential to trigger this assert.</pre>
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