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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Assertion `loBit <= BitWidth && "loBit out of range"' failed with -O0 -march=skx."
href="https://bugs.llvm.org/show_bug.cgi?id=32282">32282</a>
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<tr>
<th>Summary</th>
<td>Assertion `loBit <= BitWidth && "loBit out of range"' failed with -O0 -march=skx.
</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>Linux
</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>Vsevolod.Livinskij@frtk.ru
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=18096" name="attach_18096" title="Reproducer.">attachment 18096</a> <a href="attachment.cgi?id=18096&action=edit" title="Reproducer.">[details]</a></span>
Reproducer.
Clang++ fails with assertion with -O0 -march=skx.
Reproducer:
extern bool b;
extern const bool c;
extern long int d;
extern long int e;
void foo() {
bool a = 0 / (7 + (~(-3013716102214263007L | d) >>
((e ^ b) << (1 | 551409148 | c) - 551409131) -
223084523 & ~0 + 9223372036854775807));
}
Error:
llvm-trunk/include/llvm/ADT/APInt.h:1181: void llvm::APInt::setBits(unsigned
int, unsigned int): Assertion `loBit <= BitWidth && "loBit out of range"'
failed.
LLVM version:
clang version 5.0.0 (trunk 297835)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/vsevolod/workspace/llvm/bin-trunk/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/5.4.0
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/6.0.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.4.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.0.0
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.4.0
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64</pre>
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