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<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black">Hello LLVM-Dev,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black">Most of the processing for i64 and f64 types for our backend are emulation library calls. Some of the library calls are not defined in the RuntimeLibcalls.def Libcall enum so
we have to define custom library calls. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black">How is the ideal way of implementing the custom library calls? Providing us with a target backend having a similar functionality would also help us significantly.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black">Say for a i64 type compare, does adding it in the RuntimeLibcalls.def enum, SelectionDAGLegalize::ConvertNodeToLibcall function, and the target ISelLowering Class solve our
problem?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black">Is it okay to modify RuntimeLibcalls.def and SelectionDAGLegalize::ConvertNodeToLibcall function?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black">A starting point for processing lib calls other than the ISelLowering class would also help!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black">Thank you in advance for your help!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black">Sincerely,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Meiryo UI","sans-serif";color:black">Miguel Inigo J. Manalac (1852)<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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