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<body><span class="vcard"><a class="email" href="mailto:amehsan@ca.ibm.com" title="Ehsan Amiri <amehsan@ca.ibm.com>"> <span class="fn">Ehsan Amiri</span></a>
</span> changed
<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - BDNZ not generated for simple loops"
href="https://llvm.org/bugs/show_bug.cgi?id=28363">bug 28363</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<tr>
<td style="text-align:right;">Status</td>
<td>RESOLVED
</td>
<td>REOPENED
</td>
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<td style="text-align:right;">Resolution</td>
<td>FIXED
</td>
<td>---
</td>
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - BDNZ not generated for simple loops"
href="https://llvm.org/bugs/show_bug.cgi?id=28363#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - BDNZ not generated for simple loops"
href="https://llvm.org/bugs/show_bug.cgi?id=28363">bug 28363</a>
from <span class="vcard"><a class="email" href="mailto:amehsan@ca.ibm.com" title="Ehsan Amiri <amehsan@ca.ibm.com>"> <span class="fn">Ehsan Amiri</span></a>
</span></b>
<pre>The problem still exists for some simple loops such as this:
for( i = 0 ; i < n ; i++ )
{
a[i] += b[i] + d[i];;
}
(all array data types float)
again SCEV is unable to compute the iteration count of the loop: (from debug
output):
Exit Count for Loop at depth 1 containing: %vector.body<header><latch><exiting>
from block vector.body: ***COULDNOTCOMPUTE***</pre>
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