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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 --- - function-level attribute leakage"
href="https://llvm.org/bugs/show_bug.cgi?id=23172">23172</a>
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<th>Summary</th>
<td>function-level attribute leakage
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Common Code Generator Code
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>spatel+llvm@rotateright.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>$ cat fast-attribute.ll
define double @add_0_fast(double %a) #0 {
%add = fadd double %a, 0.0
ret double %add
}
define double @add_0_not_fast(double %a) {
%add = fadd double %a, 0.0
ret double %add
}
attributes #0 = { "unsafe-fp-math"="true" }
----------------------------------------------------------------------
The 2nd function should have an add instruction, but:
$ ./llc -o - fast-attribute.ll
_add_0_fast: ## @add_0_fast
retq
_add_0_not_fast: ## @add_0_not_fast
retq</pre>
</div>
</p>
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