<html>
<head>
<base href="https://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 --- - speccpu2000 175.vpr runtime failure when compiled with LLVM -Ofast x86_64"
href="https://llvm.org/bugs/show_bug.cgi?id=31887">31887</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>speccpu2000 175.vpr runtime failure when compiled with LLVM -Ofast x86_64
</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>brzycki@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>SPECCPU 2000 175.vpr produces the following runtime error:
Error in check_rr_graph: node 2 connects to node 8 2 times.
This only happens with the following configuration: x86_64, -Ofast. The test
is with the reference run dataset and the command line arguments:
./vpr net.in arch.in place.in route.out -nodisp -route_only -route_chan_width
15 -pres_fac_mult 2 -acc_fac 1 -first_iter_pres_fac 4 -initial_pres_fac 8
This error does not happen on aarch64 with -Ofast. Likewise, other optimization
levels -O0, -O1, -O2, -O3 on x86_64 also do not fail.
Using -Ofast -fno-fast-math also runs correctly.</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>