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<p class="MsoNormal">In general you can use Value::mutateType to change the type of a value. You can’t change the types arbitrarily though, I think that the operands to “add” still need to have the same type.<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Consolas">-- </span>
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<p class="MsoNormal"><span style="font-size:8.0pt;font-family:Consolas">Krzysztof Parzyszek
<a href="mailto:kparzysz@quicinc.com"><span style="color:#0563C1">kparzysz@quicinc.com</span></a> AI tools development<o:p></o:p></span></p>
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<p class="MsoNormal"><b>From:</b> llvm-dev <llvm-dev-bounces@lists.llvm.org> <b>On Behalf Of
</b>Celine via llvm-dev<br>
<b>Sent:</b> Tuesday, October 15, 2019 5:25 AM<br>
<b>To:</b> llvm-dev <llvm-dev@lists.llvm.org><br>
<b>Subject:</b> [EXT] [llvm-dev] How to change IR type?<o:p></o:p></p>
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<p class="MsoNormal">hello,<o:p></o:p></p>
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<p class="MsoNormal">I want to change the following IR:<o:p></o:p></p>
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<p class="MsoNormal"> %2 = tail call i16 @llvm.nvvm.read.ptx.sreg.tid.x() #2<br>
%add = add i16 %mul6, %2<o:p></o:p></p>
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<p class="MsoNormal">to <o:p></o:p></p>
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<p class="MsoNormal"> %2 = tail call i16v @llvm.nvvm.read.ptx.sreg.tid.x() #2<br>
(i16v)%add = add i16 %mul6, (i16v)%2 //Here keep %mul6 i16 as it is.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I'm not familar with LLVM IR API, it's not easy to get the type and change it right away. Seems need to create a new IR and replace the old one?
<o:p></o:p></p>
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<p class="MsoNormal">But it's also hard to CreateCall() or CreateAdd(), hard to get the original IR's info to fill in those CreateXXX parameter.
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Any ideas or reference code?<o:p></o:p></p>
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<p class="MsoNormal">How to learn LLVM IR API quickly?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">--<o:p></o:p></p>
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<p class="MsoNormal">Best Regards<o:p></o:p></p>
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<p class="MsoNormal">Celine<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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