<html>
<head>
<base href="http://llvm.org/bugs/" />
</head>
<body><span class="vcard"><a class="email" href="mailto:spatel+llvm@rotateright.com" title="Sanjay Patel <spatel+llvm@rotateright.com>"> <span class="fn">Sanjay Patel</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - clang miscompiles basic C code involving modulo at -O3"
href="http://llvm.org/bugs/show_bug.cgi?id=20849">bug 20849</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">CC</td>
<td>
</td>
<td>spatel+llvm@rotateright.com
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>DUPLICATE
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - clang miscompiles basic C code involving modulo at -O3"
href="http://llvm.org/bugs/show_bug.cgi?id=20849#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - clang miscompiles basic C code involving modulo at -O3"
href="http://llvm.org/bugs/show_bug.cgi?id=20849">bug 20849</a>
from <span class="vcard"><a class="email" href="mailto:spatel+llvm@rotateright.com" title="Sanjay Patel <spatel+llvm@rotateright.com>"> <span class="fn">Sanjay Patel</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=20849#c1">comment #1</a>)
<span class="quote">> This works for me with Clang trunk at r217196. It would be good to figure
> out which change fixed this and get it into 3.5.1.</span >
Hi Richard,
This was fixed with r214011 (<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - wrong code at -O2 and -O3 on x86_64-linux-gnu (codegen)"
href="show_bug.cgi?id=20355">bug 20355</a>):
<a href="http://llvm.org/viewvc/llvm-project?view=revision&revision=214011">http://llvm.org/viewvc/llvm-project?view=revision&revision=214011</a>
There was one more fix related to that vector division code at r215604:
<a href="http://llvm.org/viewvc/llvm-project?view=revision&revision=215604">http://llvm.org/viewvc/llvm-project?view=revision&revision=215604</a>
Note that integer division is still miscompiling:
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - wrong code at -O2 and -O3 on x86_64-linux-gnu (only in 64-bit mode and affecting all clang versions) (scalar division)"
href="show_bug.cgi?id=20494">bug 20494</a>
*** This bug has been marked as a duplicate of <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - wrong code at -O2 and -O3 on x86_64-linux-gnu (codegen)"
href="show_bug.cgi?id=20355">bug 20355</a> ***</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>