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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - llvm/lib/Transforms/Scalar/SCCP.cpp: Assertion `getLatticeValue() == forcedconstant && "Cannot move from overdefined to constant!"' failed"
href="http://llvm.org/bugs/show_bug.cgi?id=16052">16052</a>
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<th>Summary</th>
<td>llvm/lib/Transforms/Scalar/SCCP.cpp: Assertion `getLatticeValue() == forcedconstant && "Cannot move from overdefined to constant!"' failed
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kcc@google.com
</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>test case by csmith/creduce; it has an undefined behaviour (missing return)
llvm 182077
int a;
int b;
static
int fn1 (p1) {
return p1 ? p1 : -p1;
}
int fn2 () {
a = fn2 ();
b = 8LL / a;
fn1 (b);
// return statement missing
}
% clang -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -O1 -x c g.c
g.c:12:1: warning: control reaches end of non-void function
}
^
clang: llvm/lib/Transforms/Scalar/SCCP.cpp:119: bool <anonymous
namespace>::LatticeVal::markConstant(llvm::Constant *): Assertion
`getLatticeValue() == forcedconstant && "Cannot move from overdefined to
constant!"' failed.</pre>
</div>
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