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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [MIR] Simplify CFG: turn conditional jump into an unconditional one."
href="https://bugs.llvm.org/show_bug.cgi?id=40974">40974</a>
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<th>Summary</th>
<td>[MIR] Simplify CFG: turn conditional jump into an unconditional one.
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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>Linux
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Common Code Generator Code
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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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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=21566" name="attach_21566" title="Input IR">attachment 21566</a> <a href="attachment.cgi?id=21566&action=edit" title="Input IR">[details]</a></span>
Input IR
Came up in <a href="https://reviews.llvm.org/D59001">https://reviews.llvm.org/D59001</a>
If the target does not have CMOV, we will expand it to branch.
If CMOV was i16 and we promoted it to i32, then the
MIR/ASM ends up with one conditional branch and one unconditional branch.
BUT.
If CMOV was i16 and we did not promote it to i32, then the
MIR/ASM ends up with two conditional branches based on the same condition.</pre>
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