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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - false negative for -Wshift-overflow" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D24283&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=uuPD3jisSv0VD0HgN3iQxgDMXKZgCj74NGYlI_x-gBI&s=FbN_G-BgR3qifTeEpMBBveM4NyLem5RkrLfIJzekszI&e=">24283</a>
</td>
</tr>
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<th>Summary</th>
<td>false negative for -Wshift-overflow
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Frontend
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>davide@freebsd.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>See r243241 for reference.
<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_viewvc_llvm-2Dproject-3Fview-3Drevision-26revision-3D243241&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=uuPD3jisSv0VD0HgN3iQxgDMXKZgCj74NGYlI_x-gBI&s=LiUqbONWmCNj0uN3CJaysvIfYcLWSZ9vvNjvvbaGSn8&e=">http://llvm.org/viewvc/llvm-project?view=revision&revision=243241</a>
% cat shift.c
#include <sys/types.h>
static const uint32_t kFlagSync = 2 << 30;
static const uint32_t kFlagSync2 = 1 << 35;
% ./clang shift.c -Wshift-overflow
shift.c:4:38: warning: shift count >= width of type [-Wshift-count-overflow]
static const uint32_t kFlagSync2 = 1 << 35;</pre>
</div>
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