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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [InstCombine] Dropping pointless masking before left shift"
href="https://bugs.llvm.org/show_bug.cgi?id=42563">42563</a>
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<th>Summary</th>
<td>[InstCombine] Dropping pointless masking before left shift
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<th>Product</th>
<td>libraries
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Scalar Optimizations
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>lebedev.ri@gmail.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<pre>Splitting off from <a class="bz_bug_link
bz_status_NEW "
title="NEW - [InstCombine] Dropping pointless masking before right shift"
href="show_bug.cgi?id=42456">https://bugs.llvm.org/show_bug.cgi?id=42456</a> just
so i can track them separately.
There's a bunch of patterns, even if we only look at 'masking'-like pattern.
I guess i'm stumbling into a deep untouched woods that no one had in hotpaths..
a,b: <a href="https://rise4fun.com/Alive/4zsf">https://rise4fun.com/Alive/4zsf</a>
c,d,e,f: <a href="https://rise4fun.com/Alive/RC49">https://rise4fun.com/Alive/RC49</a></pre>
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