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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - miscompilation after SVN r220256"
href="http://llvm.org/bugs/show_bug.cgi?id=21497">21497</a>
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<tr>
<th>Summary</th>
<td>miscompilation after SVN r220256
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Backend: X86
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>compnerd@compnerd.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Slightly reduced test case:
// RUN: %clang -fPIC -target i686-windows-itanium -c %s
extern int a();
extern int b();
extern int c();
extern int d();
int test(long long ll, void *pv) {
int result = 1;
switch (ll) {
case 1:
result = a();
break;
case 2:
result = c();
break;
case 3:
result = d();
break;
case 4:
if (pv == 0) {
(void)d();
result = b();
} else {
}
break;
}
return (result);
}
Setting SetDirectiveSuppressesReloc to true corrects the issue.</pre>
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