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<p class="MsoNormal"><span style="color:black">Flang team,</span><o:p></o:p></p>
<p class="MsoNormal" style="caret-color: rgb(0, 0, 0);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span style="color:black"> </span><o:p></o:p></p>
<p class="MsoNormal" style="caret-color: rgb(0, 0, 0);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span style="color:black">Here are the notes from the </span>March 31<span style="color:black">, 202</span>1<span style="color:black"> Flang Community biweekly call.</span><o:p></o:p></p>
<p class="MsoNormal" style="caret-color: rgb(0, 0, 0);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span style="color:black"> </span><o:p></o:p></p>
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<b><span style="color:black">We will be switching over to using a Google Doc for keeping record of the notes for future meetings, available<span class="apple-converted-space"> </span><a href="https://docs.google.com/document/d/10T-S2J3GrahpG4Ooif93NSTz2zBW0MQc_RlwHi0-afY/edit?usp=sharing">here</a>. 
 If you have trouble accessing the document, please email me (<a href="mailto:aperry@lanl.gov">aperry@lanl.gov</a>) and I will add your email to the access list.</span></b><o:p></o:p></p>
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<span style="color:black"> </span><o:p></o:p></p>
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<span style="color:black">Also, let me know if you have any topics you would like to see covered in the next call.</span><o:p></o:p></p>
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<span style="color:black"> </span><o:p></o:p></p>
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<span style="color:black">Upcoming calls (all times Pacific time</span> unless otherwise specified<span style="color:black">):</span><o:p></o:p></p>
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<p class="MsoNormal"><b>Call</b><o:p></o:p></p>
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<p class="MsoNormal"><b>When</b><o:p></o:p></p>
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<p class="MsoNormal">LLVM Flang Technical Community call<o:p></o:p></p>
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<p class="MsoNormal">Monday, April 5, at 8:30 AM<o:p></o:p></p>
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<p class="MsoNormal">LLVM Alias Analysis call<o:p></o:p></p>
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<p class="MsoNormal">Tuesday, April 20, at 10:00 AM<o:p></o:p></p>
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<p class="MsoNormal">Classic Flang biweekly call<o:p></o:p></p>
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<p class="MsoNormal">Wednesday, April 7, at 8:00 AM<o:p></o:p></p>
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<p class="MsoNormal">Weekly OpenMP developer call<o:p></o:p></p>
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<p class="MsoNormal">Thursday, April 1, at 8:00 AM<o:p></o:p></p>
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<p class="MsoNormal">Flang biweekly call (this call)<o:p></o:p></p>
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<p class="MsoNormal">Wednesday, April 14, at 8:30 AM<o:p></o:p></p>
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New Driver Technical biweekly call<o:p></o:p></p>
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<p class="MsoNormal">Monday, April 12, at 4:30 PM <b><i>UK time</i></b><o:p></o:p></p>
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<p class="MsoNormal">LLVM OpenACC upstreaming call<o:p></o:p></p>
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<p class="MsoNormal">Wednesday, April 7, at Noon <o:p></o:p></p>
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<p style="margin:0in"><span style="font-size:12.0pt;color:black"> </span><o:p></o:p></p>
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<span style="font-size:12.0pt;color:black">Information for joining these calls and the Flang Slack workspace can be found at
</span><span style="color:black"><a href="http://flang.llvm.org/docs/GettingInvolved.html">http://flang.llvm.org/docs/GettingInvolved.html</a></span><span style="font-size:12.0pt;color:black">.</span><o:p></o:p></p>
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<span style="color:black"> </span><o:p></o:p></p>
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<span style="color:black">Thank you,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:black;background:white">-- Alexis</span><o:p></o:p></p>
<p style="margin-bottom:0in"><b><span style="font-size:12.0pt;color:black;background:white"> </span></b><b><span style="font-size:12.0pt;color:black">Agenda:</span></b><o:p></o:p></p>
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<span style="font-size:12.0pt">Upcoming talks/BoFs</span><span style="font-size:12.0pt"><o:p></o:p></span>
<ul style="margin-top:0in;padding-inline-start:48px" type="circle">
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level2 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">ECP Community BoF Days - Tomorrow, April 1 11:00 am - 12:30 pm EDT<o:p></o:p></span>
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<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt"><a href="https://www.exascaleproject.org/event/ecp-community-bof-days-2021/"><span style="color:#1155CC">https://www.exascaleproject.org/event/ecp-community-bof-days-2021/</span></a> <o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level2 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">ECP Annual Meeting - <a href="https://www.ecpannualmeeting.com/">
<span style="color:#1155CC">https://www.ecpannualmeeting.com/</span></a> <o:p></o:p></span>
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<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">LLVM breakout session – April 14 (Wednesday), 10:00am – 12:30 pm EDT<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">BoF on V&V testing for exascale computers. Nick will give a 1-slide summary of the LLVM Testsuite work.
<span style="background:white">April 14 (Wednesday), 10:00 AM - 11:30 AM EDT</span><o:p></o:p></span></li></ul>
</li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level1 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">LLVM Flang Technical Call agenda<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level1 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">LLVM Flang development updates<o:p></o:p></span>
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<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level2 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Fir-dev merge status<o:p></o:p></span>
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<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">First code gen patch merged<o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level2 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">New Driver work<o:p></o:p></span>
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<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">See details below<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">`-fdebug-no-semantics`: <a href="https://reviews.llvm.org/D99645">
<span style="color:#1155CC;background:#F8F8F8">https://reviews.llvm.org/D99645</span></a></span><span style="font-size:12.0pt;color:#1D1C1D;background:#F8F8F8">.</span><span style="font-size:12.0pt"><o:p></o:p></span></li><li style="color:#1D1C1D;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt;background:#F8F8F8">Looking into refactoring some of the diagnostics, help is welcome</span><span style="font-size:12.0pt"><o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level2 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">OpenMP/OpenACC work<o:p></o:p></span>
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<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Fady (ORNL) added OpenMPIRBuilder patch for atomic.<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Discussions on privatisation in OpenMP+Flang.<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Work for dynamic schedule almost complete.<o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level2 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">F95 support - intrinsics<o:p></o:p></span>
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<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Tutorial - <a href="https://github.com/flang-compiler/f18-llvm-project/blob/fir-dev/flang/docs/tutorials/addingIntrinsics.md?web=1&wdLOR=cECB12CF7-F6EA-CE40-9717-C649917E00D3">
<span style="color:#1155CC">https://github.com/flang-compiler/f18-llvm-project/blob/fir-dev/flang/docs/tutorials/addingIntrinsics.md?web=1&wdLOR=cECB12CF7-F6EA-CE40-9717-C649917E00D3</span></a> <o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">This is a great place for people to jump in and help out<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Looking for code samples to test with as well<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Differences between F2003 and F95: <a href="https://wg5-fortran.org/N1601-N1650/N1648.pdf">
<span style="color:#1155CC">https://wg5-fortran.org/N1601-N1650/N1648.pdf</span></a> <o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level2 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Quick Fortran in LLVM test suite status <o:p></o:p></span>
<ul style="margin-top:0in;padding-inline-start:48px" type="square">
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Submitted patch last night/early this morning, <a href="https://reviews.llvm.org/D99640">
<span style="color:#1155CC">https://reviews.llvm.org/D99640</span></a><o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">The missing tests are climate codes which have been challenging. One more to go!<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">A lot of help from Michael Kruse, most recently a patch to submit the floating point comparison tool,
<a href="https://reviews.llvm.org/D99619"><span style="color:#1155CC">https://reviews.llvm.org/D99619</span></a> <o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level2 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Biweekly call coming on upstreaming more of the OpenACC work to LLVM<o:p></o:p></span>
<ul style="margin-top:0in;padding-inline-start:48px" type="square">
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Current priority - How to get the runtime pushed up for Flang <o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level3 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Next call is April 7 at noon PDT, contact <a href="mailto:jlarkin@nvidia.com">
<span style="color:#1155CC">jlarkin@nvidia.com</span></a> for meeting info<o:p></o:p></span></li></ul>
</li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level1 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Classic Flang development update<o:p></o:p></span>
<ul style="margin-top:0in;padding-inline-start:48px" type="circle">
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level2 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Flang works with llvm-12 now. llvm-9 testing removed from CI.<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level2 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">Windows patch for flang runtime landed.<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l0 level2 lfo7;vertical-align:baseline">
<span style="font-size:12.0pt">AMD submitted a patch to switch to new metadata for loop parallel access.<o:p></o:p></span></li></ul>
</li></ul>
<p style="margin-bottom:0in"><b><span style="font-size:12.0pt;color:black">Details:</span></b><o:p></o:p></p>
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<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level1 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Flang on GitHub</span><span style="font-size:12.0pt"><o:p></o:p></span>
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<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:7.0pt"> </span><span style="font-size:12.0pt">LLVM Flang is in
<b><a href="https://github.com/llvm/llvm-project/tree/main/flang"><span style="color:#1155CC;font-weight:normal">https://github.com/llvm/llvm-project/tree/main/flang</span></a></b>.<b><o:p></o:p></b></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">There have been <b>3,112</b> commits for LLVM Flang encompassing over
<b>188,000</b> lines of code, documentation, CMakefiles and tests.<b><o:p></o:p></b></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">There have been <b>1,769</b> total commits to Classic Flang in
<b><a href="https://github.com/flang-compiler/flang"><span style="color:#1155CC;font-weight:normal">https://github.com/flang-compiler/flang</span></a></b>.<b><o:p></o:p></b></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level1 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">LLVM Flang recent development<o:p></o:p></span>
<ul style="margin-top:0in;padding-inline-start:48px" type="circle">
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">OpenMP<o:p></o:p></span>
<ul style="margin-top:0in;padding-inline-start:48px" type="square">
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">OpenMP 5.1 - Initial support for the use clause<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Add more sema checks for ordered construct<o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">New Driver<o:p></o:p></span>
<ul style="margin-top:0in;padding-inline-start:48px" type="square">
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Add support for `-fget-symbols-sources`<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Add -fintrinsic-modules-path option<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Add options for -std=f2018<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Increase ability to share more tests between the new and old driver<o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">FIR<o:p></o:p></span>
<ul style="margin-top:0in;padding-inline-start:48px" type="square">
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Add the pre-code gen rewrite pass and codegen ops<o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Unittests for runtime terminator<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Refine symbol sorting<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Fix for specific procedures named the same as the generic and a derived type<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Disallow erroneous procedure declarations<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">CMake improvements<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Fix output buffering bug (positionability assumption)<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">fold LOGICAL intrinsic calls<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Update output format test to use GTest<o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level1 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Classic Flang recent development<o:p></o:p></span>
<ul style="margin-top:0in;padding-inline-start:48px" type="circle">
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Fixing NCAR test problems with error tolerance lower than E-12.<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">[build] Require CMake 3.3<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">[build] Add GitHub workflow to build release_12x of LLVM <o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">[libpgmath] Use Python 3 to run tests<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo8;vertical-align:baseline">
<span style="font-size:12.0pt">Remove release_90 from Github Actions<o:p></o:p></span></li></ul>
</li></ul>
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