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<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">To me it seems that we should have some means to clone machine functions. As far as I can see there currently is none.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Such functionality would be required if/when trying to do MIR reduction (</span><a href="https://groups.google.com/g/llvm-dev/c/dggTGzLIezw/m/BGxZdoaHAwAJ"><span lang="EN-US">[llvm-dev] llvm-reduce for MIR (google.com)</span></a><span lang="EN-US">)
and I am sure that there could be other uses as well if it was indeed available.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I know the question of cloning machine functions have been brought up before in
</span><a href="https://groups.google.com/g/llvm-dev/c/DOP6RSV8lQ4/m/C3Lfe6gJEwAJ"><span lang="EN-US">[llvm-dev] Cloning MachineFunctions (google.com)</span></a>
<span lang="EN-US">and that Intel have done something along these lines as suggested in
</span><a href="https://www.youtube.com/watch?v=o4R3SqyNbqU"><span lang="EN-US">2019 EuroLLVM Developers’ Meeting: L. Saba “Swinging Modulo Scheduling together with Register ...” - YouTube</span></a><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Does anyone else see that a cloneMF() could be useful to have in-tree?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">-Markus<o:p></o:p></span></p>
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