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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [InstCombine] fold clamp of 2-value range"
href="https://bugs.llvm.org/show_bug.cgi?id=43053">43053</a>
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<th>Summary</th>
<td>[InstCombine] fold clamp of 2-value range
</td>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Scalar Optimizations
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>spatel+llvm@rotateright.com
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</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
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<pre>Forking this off from <a class="bz_bug_link
bz_status_NEW "
title="NEW - Missed scalar min max optimization using vector min/max on Haswelll"
href="show_bug.cgi?id=39898">bug 39898</a> because it's morphed into something different
than it started as:
Pre: C2 == C1 - 1
%cmp1 = icmp slt i32 %num, C1
%s1 = select i1 %cmp1, i32 %num, i32 C1
%cmp2 = icmp sgt i32 %s1, C2
%r = select i1 %cmp2, i32 %s1, i32 C2
=>
%cmp3 = icmp sgt %num, C2
%z = zext i1 %cmp3 to i32
%r = add i32 %z, C2
<a href="https://rise4fun.com/Alive/2sl8">https://rise4fun.com/Alive/2sl8</a></pre>
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