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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 --- - GCC's -Wstrict-overflow not implemented" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D23903&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=Bfz0EXEpEgYB4z2S441O64XXv_vgDmtGd_QUgK5oSB8&s=4GOtr3oS8um7IrRxV91K3eTaxXH_TvW6K-pAG5qlMmg&e=">23903</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>GCC's -Wstrict-overflow not implemented
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Frontend
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>chengniansun@gmail.com
</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>$: cat t.c
int main(int argc, char **argv) {
if (argc + 3 < argc)
return 0;
else
return 1;
}
$: clang-trunk -Weverything -Wno-unused-parameter -O3 t.c
$: gcc-trunk -Wall -O3 t.c
t.c: In function ¡®main¡¯:
t.c:2:3: warning: assuming signed overflow does not occur when assuming that (X
+ c) < X is always false [-Wstrict-overflow]
if (argc + 3 < argc)
^
$:
$:</pre>
</div>
</p>
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