<html>
<head>
<base href="http://llvm.org/bugs/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Assertion `getInductionVars()->size() && "No induction variables"' failed."
href="http://llvm.org/bugs/show_bug.cgi?id=15926">15926</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Assertion `getInductionVars()->size() && "No induction variables"' 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>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<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
% clang -m32 -O3 z.c -c
# or:
# clang -cc1 -triple i386-unknown-linux-gnu -emit-obj -O3 -backend-option
-vectorize-loops -o z.o -x c z.c
llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:2525: bool <anonymous
namespace>::LoopVectorizationLegality::canVectorizeInstrs(): Assertion
`getInductionVars()->size() && "No induction variables"' failed.
3. Running pass 'CallGraph Pass Manager' on module 'z.c'.
4. Running pass 'Loop Pass Manager' on function '@fn1'
5. Running pass 'Loop Vectorization' on basic block '%for.body'
test case:
long long a;
volatile int x;
void fn1 () {
for (a = 0; a >= 0; ++a)
x = 0;
}
This reduced test case is not standard conforming (integer overflow)
but the compiler should not fail in an assertion.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>