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<body><span class="vcard"><a class="email" href="mailto:florian_hahn@apple.com" title="Florian Hahn <florian_hahn@apple.com>"> <span class="fn">Florian Hahn</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [DSE] [InstCombine] Compiling a single file with optimizations on takes > 10 minutes"
href="https://bugs.llvm.org/show_bug.cgi?id=9956">bug 9956</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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<td style="text-align:right;">CC</td>
<td>
</td>
<td>florian_hahn@apple.com
</td>
</tr>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [DSE] [InstCombine] Compiling a single file with optimizations on takes > 10 minutes"
href="https://bugs.llvm.org/show_bug.cgi?id=9956#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [DSE] [InstCombine] Compiling a single file with optimizations on takes > 10 minutes"
href="https://bugs.llvm.org/show_bug.cgi?id=9956">bug 9956</a>
from <span class="vcard"><a class="email" href="mailto:florian_hahn@apple.com" title="Florian Hahn <florian_hahn@apple.com>"> <span class="fn">Florian Hahn</span></a>
</span></b>
<pre>This completes in ~15s on recent hardware. The imbalance is much smaller and
DSE does not stick out hugely any more. There is still a problem with DSE on
huge basic blocks, but the code here does not really show the issue.
===-------------------------------------------------------------------------===
... Pass execution timing report ...
===-------------------------------------------------------------------------===
Total Execution Time: 14.4792 seconds (14.5075 wall clock)
---User Time--- --System Time-- --User+System-- ---Wall Time--- ---
Name ---
3.7700 ( 27.2%) 0.0082 ( 1.4%) 3.7782 ( 26.1%) 3.7885 ( 26.1%) Dead
Store Elimination
3.1398 ( 22.6%) 0.4919 ( 81.6%) 3.6317 ( 25.1%) 3.6369 ( 25.1%)
Global Variable Optimizer #2
2.1581 ( 15.6%) 0.0111 ( 1.8%) 2.1692 ( 15.0%) 2.1718 ( 15.0%)
Function Integration/Inlining
1.1521 ( 8.3%) 0.0032 ( 0.5%) 1.1553 ( 8.0%) 1.1580 ( 8.0%) Dead
Global Elimination
1.1421 ( 8.2%) 0.0030 ( 0.5%) 1.1451 ( 7.9%) 1.1466 ( 7.9%) Dead
Global Elimination #2
0.4032 ( 2.9%) 0.0050 ( 0.8%) 0.4082 ( 2.8%) 0.4085 ( 2.8%)
Combine redundant instructions</pre>
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