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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [microsoft] Arrays arguments in function pointer types mangled incorrectly"
href="http://llvm.org/bugs/show_bug.cgi?id=16096">16096</a>
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<th>Summary</th>
<td>[microsoft] Arrays arguments in function pointer types mangled incorrectly
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Windows NT
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>reid.kleckner@gmail.com
</td>
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>This code fails to mangle correctly:
typedef void (*ArrayFunPtr)(int d[1]);
ArrayFunPtr getArrayFunPtr() { return 0; }
// CHECK: "\01?getArrayFunPtr@@YAP6AXQAH@ZXZ"
// FOUND: "\01?getArrayFunPtr@@YAP6AXPAH@ZXZ"
undname for these two symbols shows:
Undecoration of :- "?getArrayFunPtr@@YAP6AXQAH@ZXZ"
is :- "void (__cdecl*__cdecl getArrayFunPtr(void))(int * const)"
Undecoration of :- "?getArrayFunPtr@@YAP6AXPAH@ZXZ"
is :- "void (__cdecl*__cdecl getArrayFunPtr(void))(int *)"
Note the missing "const" on the variant produced by clang.
There are two problems here:
1. we lose the array-ness in getArrayDecayedType(), which you can see with
-ast-dump
2. after hacking getArrayDecayedType() to return a const-qualified pointer,
clang loses the const somewhere else (canonicalization?)</pre>
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