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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - support for GNU C label attributes"
href="https://bugs.llvm.org/show_bug.cgi?id=47487">47487</a>
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<th>Summary</th>
<td>support for GNU C label attributes
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>ndesaulniers@google.com
</td>
</tr>
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, isanbard@gmail.com, jyknight@google.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre><a href="https://gcc.gnu.org/onlinedocs/gcc/Label-Attributes.html#Label-Attributes">https://gcc.gnu.org/onlinedocs/gcc/Label-Attributes.html#Label-Attributes</a>
<a href="https://godbolt.org/z/Er3rP8">https://godbolt.org/z/Er3rP8</a>
#include <stdio.h>
int foo(void) {
asm goto ("some asm" : : : : NoError);
/* This branch (the fall-through from the asm) is less commonly used */
ErrorHandling:
__attribute__((cold, unused)); /* Semi-colon is required here */
printf("error\n");
return 0;
NoError:
printf("no error\n");
return 1;
}
clang:
warning: 'cold' attribute only applies to functions [-Wignored-attributes]
__attribute__((cold, unused)); /* Semi-colon is required here */
^</pre>
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