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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Warn when __atribute__((used)) is on definitions"
href="https://bugs.llvm.org/show_bug.cgi?id=41016">41016</a>
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<th>Summary</th>
<td>Warn when __atribute__((used)) is on definitions
</td>
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<th>Product</th>
<td>clang
</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>All
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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
</td>
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<th>Component</th>
<td>-New Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>dave@znu.io
</td>
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>The following code generates the following suboptimal error with top-of-tree
clang:
```
template <typename T>
class Foo {
void bar() __attribute__((used));
};
using FooInt = Foo<int>;
static FooInt f;
template <>
void FooInt::bar() { }
```
Generates:
```
/tmp/xxx.cpp:11:14: error: explicit specialization of 'bar' after instantiation
void FooInt::bar() { }
^
/tmp/xxx.cpp:8:15: note: implicit instantiation first required here
static FooInt f;
^
1 error generated.
```
Whereas the real underlying problem is that `__attribute__((used))` is on the
definition, not the declaration.
Please consider having a direct warning about the misplaced attribute. Thanks!</pre>
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