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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Failure to optimize sprintf of single string to strcpy instead of using strlen+strcpy"
href="https://bugs.llvm.org/show_bug.cgi?id=46489">46489</a>
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<th>Summary</th>
<td>Failure to optimize sprintf of single string to strcpy instead of using strlen+strcpy
</td>
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<th>Product</th>
<td>libraries
</td>
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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
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Scalar Optimizations
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>gabravier@gmail.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Failure to optimize sprintf of single string to strcpy instead of using strlen+strcpy"
href="https://bugs.llvm.org/show_bug.cgi?id=46489#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Failure to optimize sprintf of single string to strcpy instead of using strlen+strcpy"
href="https://bugs.llvm.org/show_bug.cgi?id=46489">bug 46489</a>
from <span class="vcard"><a class="email" href="mailto:gabravier@gmail.com" title="Gabriel Ravier <gabravier@gmail.com>"> <span class="fn">Gabriel Ravier</span></a>
</span></b>
<pre>*** <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - Failure to optimize sprintf of single string to strcpy instead of using strlen+strcpy"
href="show_bug.cgi?id=46490">Bug 46490</a> has been marked as a duplicate of this bug. ***</pre>
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<pre>void f(char *p, const char *s)
{
sprintf(p, "%s", s);
}
This can be optimized to `strcpy(p, s)`. This transformation is done by GCC.
but not by LLVM, which instead transforms it to `memcpy(p, s, strlen(s) + 1)`</pre>
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