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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - backend error because clang doesn't type check address space qualifiers during casting"
href="https://bugs.llvm.org/show_bug.cgi?id=43255">43255</a>
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<th>Summary</th>
<td>backend error because clang doesn't type check address space qualifiers during casting
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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
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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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<pre>The following code will crash in the backend because clang isn't type checking
address space qualifiers during casting. To fix the code, uncomment the line
below.
struct Cache {
long buffer[100];
};
class Thread {
public:
Thread *self;
char buffer[100*8];
Thread() : self(this) {}
};
__attribute__((address_space(257)))
Thread *const _foo = nullptr;
long getIndex(unsigned long index) {
return ((
//__attribute__((address_space(257)))
Cache*)_foo->buffer)->buffer[index];
}
Sema should catch this mismatch and diagnose.</pre>
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