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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Clang-cl prevents `__restrict`ed struct members to show in debugger"
href="https://bugs.llvm.org/show_bug.cgi?id=37137">37137</a>
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<th>Summary</th>
<td>Clang-cl prevents `__restrict`ed struct members to show in debugger
</td>
</tr>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
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<th>Version</th>
<td>6.0
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>antoine.vugliano@free.fr
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>When compiling with clang-cl and debugging info activated (/Zi), Visual
Studio's debugger is unable to access struct/class members that are marked with
`__restrict`. This however works with cl.exe.
Example:
```
struct Foo
{
int * __restrict i;
};
int main(int argc, char** argv)
{
Foo foo;
return 0;
}
```
Compiling this code in debug and trying to visualize the value of `i` (either
from hovering it in the source pane or by the watch window) will only show
`<Unable to read memory>` or `class "Foo" has no member "i"`.
Removing the attribute will allow the debugger to inspect `foo.i`.
OS: Windows 10, Windows 7
VS: 2015U3
target: windows x86 and x64</pre>
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