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<p class="MsoNormal">Yes, <a href="http://llvm.org/docs/MIRLangRef.html#id12">http://llvm.org/docs/MIRLangRef.html#id12</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Usually you use -stop-before=passname or -stop-after=passname to get some MIR at a relevant point. Note that currently not all information tracked is really serialized, especially target specific MachineFunctionInfo. Some targets partially
implement this, but there are still a lot of gaps.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Also note nothing about MIR is remotely stable, so this may differ from what you mean by “persistent”
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-Matt<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">llvm-dev <llvm-dev-bounces@lists.llvm.org> on behalf of llvm-dev <llvm-dev@lists.llvm.org><br>
<b>Reply-To: </b>Lele Ma <lelema.cn@gmail.com><br>
<b>Date: </b>Thursday, November 21, 2019 at 08:09<br>
<b>To: </b>llvm-dev <llvm-dev@lists.llvm.org><br>
<b>Subject: </b>[llvm-dev] [CodeGen] Read/Write Machine IR from/to Persistent File<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Dear LLVM developers,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Just as LLVM IR can be read/write via persistent bitcode (*.bc *.ll) files, is there any similar implementation in LLVM to read/write Machine IR (MIR) via a persistent file?
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">If not and I would like to add it (e.g. for ARM or RISC-V), could you direct me materials and/or LLVM source code modules where I should start with?
<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">Lele Ma<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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