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<p class="MsoNormal"><span style="font-family:"Courier New";color:#44546A">Would this introduce start-up latency based on the size of the compilation? JIT jobs with 100-200MB of source are not uncommon here, and I’d hate to see latency get much worse.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";color:#44546A">A small enough fixed latency would be ok.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#44546A">--</span><span style="color:#44546A">
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</span><span style="font-size:10.0pt;font-family:"Courier New";color:#44546A">Kevin P. Neal</span><span style="color:#44546A"><br>
</span><span style="font-size:10.0pt;font-family:"Courier New";color:#44546A">SAS/C and SAS/C++ Compiler<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#44546A">Compute Services<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#44546A">SAS Institute, Inc.</span><span style="color:#44546A"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";color:#44546A"><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>Lang Hames via llvm-dev<br>
<b>Sent:</b> Tuesday, January 19, 2021 5:09 PM<br>
<b>To:</b> Stefan Gränitz <stefan.graenitz@gmail.com><br>
<b>Cc:</b> Vivien Millet <vivien.millet@gmail.com>; Athul Acharya <aacharya@gmail.com>; LLVM Developers Mailing List <llvm-dev@lists.llvm.org>; kris <cq.personal@gmail.com>; Jared Wyles <jared.wyles@gmail.com>; Frances Mocnik <fmocnik@gmail.com>; Jacob Lifshay
<programmerjake@gmail.com>; Christian Schafmeister <meister@temple.edu><br>
<b>Subject:</b> Re: [llvm-dev] LLVM Orc Weekly #28 -- ORC Runtime Prototype update<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p><b><i><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:red">EXTERNAL</span></i></b><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:red">
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<p class="MsoNormal">Big question for JIT clients: Does anyone have any objection to APIs in ORC *relying* on the runtime being loaded in the target? If so, now is the time to let me know. :)<o:p></o:p></p>
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<p class="MsoNormal">I think possible objections are JIT'd program startup time (unlikely to be very high, and likely fixable via careful runtime design and pre-linking of parts of the runtime), and difficulties building compiler-rt (which sounds like something
we should fix in compiler-rt).<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 we can assume that the runtime is loadable then we can significantly simplify the TargetProcess library, and TargetProcessControl API, and further accelerate feature development in LLVM 13.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- Lang.<o:p></o:p></p>
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