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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - MSAN assertion failure during instrumentation of avx512 intrinsic"
href="https://bugs.llvm.org/show_bug.cgi?id=48298">48298</a>
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<th>Summary</th>
<td>MSAN assertion failure during instrumentation of avx512 intrinsic
</td>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
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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>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>tomasz.miasko@gmail.com
</td>
</tr>
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>Originally reported in <a href="https://github.com/rust-lang/stdarch/issues/957">https://github.com/rust-lang/stdarch/issues/957</a>
#include <immintrin.h>
unsigned test_mm_cvt_roundss_u32(__m128 __A) {
return _mm_cvt_roundss_u32(__A, _MM_FROUND_TO_ZERO | _MM_FROUND_NO_EXC);
}
$ clang a.c -march=skylake-avx512 -fsanitize=memory
clang: llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp:2783: void
{anonymous}::MemorySanitizerVisitor::handleVectorConvertIntrinsic(llvm::IntrinsicInst&,
int): Assertion `CopyOp->getType() == I.getType()' failed.</pre>
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