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<body lang="EN-US" link="#0563C1" vlink="purple" style="word-wrap:break-word">
<div class="WordSection1">
<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>February 17<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>
<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">
<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>
<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">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>
<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">Upcoming calls (all times Pacific time):</span><o:p></o:p></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="577" style="width:432.9pt;margin-left:30.2pt;border-collapse:collapse;caret-color: rgb(0, 0, 0);orphans: auto;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:0px">
<tbody>
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<td width="259" valign="top" style="width:2.7in;border:solid #B4C6E7 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal"><b>Call</b><o:p></o:p></p>
</td>
<td width="318" valign="top" style="width:238.5pt;border:solid #B4C6E7 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal"><b>When</b><o:p></o:p></p>
</td>
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<td width="259" valign="top" style="width:2.7in;border:solid #B4C6E7 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal">LLVM Flang Technical Community call<o:p></o:p></p>
</td>
<td width="318" valign="top" style="width:238.5pt;border-top:none;border-left:none;border-bottom:solid #B4C6E7 1.0pt;border-right:solid #B4C6E7 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal">Monday, February 22, at 8:30 AM<o:p></o:p></p>
</td>
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<td width="259" valign="top" style="width:2.7in;border:solid #B4C6E7 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal">LLVM Alias Analysis call<o:p></o:p></p>
</td>
<td width="318" valign="top" style="width:238.5pt;border-top:none;border-left:none;border-bottom:solid #B4C6E7 1.0pt;border-right:solid #B4C6E7 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal">Tuesday, February 23, at 10:00 AM<o:p></o:p></p>
</td>
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<td width="259" valign="top" style="width:2.7in;border:solid #B4C6E7 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal">Classic Flang biweekly call<o:p></o:p></p>
</td>
<td width="318" valign="top" style="width:238.5pt;border-top:none;border-left:none;border-bottom:solid #B4C6E7 1.0pt;border-right:solid #B4C6E7 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal">Wednesday, February 24, at 8:00 AM<o:p></o:p></p>
</td>
</tr>
<tr>
<td width="259" valign="top" style="width:2.7in;border:solid #B4C6E7 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal">OpenMP developer call<o:p></o:p></p>
</td>
<td width="318" valign="top" style="width:238.5pt;border-top:none;border-left:none;border-bottom:solid #B4C6E7 1.0pt;border-right:solid #B4C6E7 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal">Thursday, February 25, at 8:00 AM<o:p></o:p></p>
</td>
</tr>
<tr>
<td width="259" valign="top" style="width:2.7in;border:solid #B4C6E7 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal">Flang biweekly call (this call)<o:p></o:p></p>
</td>
<td width="318" valign="top" style="width:238.5pt;border-top:none;border-left:none;border-bottom:solid #B4C6E7 1.0pt;border-right:solid #B4C6E7 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal">Wednesday, March 3, at 8:30 AM<o:p></o:p></p>
</td>
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<td width="259" valign="top" style="width:2.7in;border:solid #B4C6E7 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt">
<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">
New Driver Technical biweekly call<o:p></o:p></p>
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<td width="318" valign="top" style="width:238.5pt;border-top:none;border-left:none;border-bottom:solid #B4C6E7 1.0pt;border-right:solid #B4C6E7 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal">Monday, March 1, at 8:30 AM<o:p></o:p></p>
</td>
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<p style="margin:0in"><span style="font-size:12.0pt;color:black"> </span><o:p></o:p></p>
<p style="margin:0in;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="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>
<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">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>
<ul style="margin-top:0in" type="disc">
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level1 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">Google Summer of Code projects?</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:l2 level2 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">Put ideas on the LLVM GSoC projects page<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">Outreachy - longer time frame projects (weeks, not months, longer)<o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level1 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">FIR-level transformations - compiling a list, contact Johannes if you have ideas<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level1 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">LLVM Workshop at CGO at the end of the month<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 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">Register soon if you’d like to attend<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt"><a href="https://llvm.org/devmtg/2021-02-28/"><span style="color:#1155CC">https://llvm.org/devmtg/2021-02-28/</span></a> <o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level1 lfo9;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:l2 level1 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">LLVM Flang development updates<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 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">Fir-dev merge 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:l2 level3 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">Continuing merge of FIR dialect definitions <o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">Starting on ops<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">Standard delays from the review process, largely smooth<o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">Adding Fortran tests to LLVM 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:l2 level3 lfo9;vertical-align:baseline">
<span style="font-size:12.0pt">Last patch, <a href="https://reviews.llvm.org/D96746">
<span style="color:#1155CC">https://reviews.llvm.org/D96746</span></a>, revealed an issue with the CMake `Unix Makefiles` generator. Still mostly testing with GCC for now.<o:p></o:p></span></li></ul>
</li></ul>
</li></ul>
<ul style="margin-top:0in;padding-inline-start:48px" type="disc">
<ul style="margin-top:0in" type="circle">
<ul style="margin-top:0in" type="square">
<ul style="margin-top:0in" type="disc">
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level4 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">So we will need to use Ninja 1.10 or greater and bump up the minimum CMake version. Much enhanced dependency scanning for Fortran Modules with Ninja.<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level4 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">Nick wrote a bunch of complicated code to deal with the shortcomings in the `Unix Makefiles` generator. Using Ninja will make adding the rest of the tests simpler.<o:p></o:p></span></li></ul>
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">Nick is enlisting Brian (LBNL) to help add tests :)<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">Thinking about adding a buildbot with SPEC CPU 2017 somewhere.<o:p></o:p></span></li></ul>
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">New Driver work<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 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">Approaching feature parity with the throwaway driver<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">Currently targeting LLVM 13 for full parity (with continued dependency on Clang), but date still flexible <o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">OpenMP/OpenACC work<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 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">Semantic check additions<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level3 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">Initial lowering in the fir-dev branch work ongoing<o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">Patch coming soon for coarrays<o:p></o:p></span></li></ul>
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level1 lfo10;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:l2 level2 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">Simplification of merge process and CI<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l2 level2 lfo10;vertical-align:baseline">
<span style="font-size:12.0pt">See details below<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>
<ul style="margin-top:0in" type="disc">
<li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level1 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Flang on GitHub</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:l6 level2 lfo11;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/master/flang"><span style="font-weight:normal">https://github.com/llvm/llvm-project/tree/master/flang</span></a></b>.<b><o:p></o:p></b></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">There have been <b>3,001</b> commits for LLVM Flang encompassing over
<b>181,000</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:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">There have been <b>1,743</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:l6 level1 lfo11;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:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Driver: added support for various flags (forced form, -ffixed-line-length, -J/-module-dir, -fopenmp, -fopenacc, unparsing options)<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Adapt mlir based error status handling in `tco` tool<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Renaming and/or adding FIR types<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">FIR: Add the opaque attribute class, Updates to internal name uniquer, Update the kind mapping class, Add fir-opt tool<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Manage per-specification-part state better<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Cope with specific procedures with same name as generic<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Macro replacement fixes<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">OpenMP: add semantic check for DO loop restrictions<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Detect circularly defined procedures<o:p></o:p></span></li></ul>
</li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level1 lfo11;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:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Fix hash collision handling routine that didn't work due to a fatal mistake<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Add the option to build release_11x branch of llvm<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Do not error when character kind 2 is used<o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Fix a clash between CONTIGUOUS and SAVE attribute in flang (issue #673<a href="https://github.com/flang-compiler/flang/commit/b225fa67f0e27be8af7fe434661f665b4a980ed6"><span style="color:#1155CC">)</span></a><o:p></o:p></span></li><li style="color:black;margin-top:0in;margin-bottom:0in;mso-list:l6 level2 lfo11;vertical-align:baseline">
<span style="font-size:12.0pt">Fixes to address cp2k compilation and runtime issues<o:p></o:p></span></li></ul>
</li></ul>
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