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</head>
<body lang="EN-US" link="#0563C1" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal">Flang team,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here are the notes from the November 25, 2020 Flang Community biweekly call.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">“LLVM Flang” is the Fortran 2018 compiler being developed as part of the LLVM project, and located in the LLVM monorepo (github.com/llvm/llvm-project).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">“Classic Flang” is the original Flang Fortran 2003/2008 compiler located at github.com/flang-compiler/flang.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Let me know if you have any topics you would like covered in the next call.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Upcoming calls (all times Pacific time):<o:p></o:p></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="margin-left:30.2pt;border-collapse:collapse">
<tbody>
<tr>
<td width="259" valign="top" style="width:2.7in;border:solid #B4C6E7 1.0pt;border-bottom:solid #8EAADB 1.5pt;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-top:solid #B4C6E7 1.0pt;border-left:none;border-bottom:solid #8EAADB 1.5pt;border-right:solid #B4C6E7 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal"><b>When</b><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">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, November 30, 8:30 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">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, December 1, 2020 at 10:00 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">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, December 2, 2020 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, November 26, December 3, 2020 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, December 9, 2020 at 8:30 AM<o:p></o:p></p>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Information for joining these calls and the Flang Slack workspace can be found at
<a href="http://flang.llvm.org/docs/GettingInvolved.html">http://flang.llvm.org/docs/GettingInvolved.html</a>.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Gary<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>Agenda</b><o:p></o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l1 level1 lfo1">Supercomputing 2020<o:p></o:p></li><li class="MsoNormal" style="mso-list:l1 level1 lfo1">LLVM Flang Technical Call agenda<o:p></o:p></li><li class="MsoNormal" style="mso-list:l1 level1 lfo1">LLVM Flang development update<o:p></o:p></li><li class="MsoNormal" style="mso-list:l1 level1 lfo1">Classic Flang update<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>Highlights</b><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l4 level1 lfo2">Supercomputing<o:p></o:p></li><ul style="margin-top:0in" type="circle">
<li class="MsoNormal" style="color:black;mso-list:l4 level2 lfo2"><span style="color:windowtext">No one had anything much to say about SC this week</span><o:p></o:p></li></ul>
</ul>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l4 level1 lfo2">LLVM Flang Technical Call<o:p></o:p></li><ul style="margin-top:0in" type="circle">
<li class="MsoNormal" style="mso-list:l4 level2 lfo2">Potential topics for Monday include the various RFCs related to Flang<o:p></o:p></li></ul>
</ul>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l4 level1 lfo2">LLVM Flang updates<o:p></o:p></li></ul>
<ul style="margin-top:0in" type="disc">
<ul style="margin-top:0in" type="circle">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">Johannes Doerfert has created a web page at
<a href="https://flang.llvm.org">https://flang.llvm.org</a>; you can find call and Slack logistics there<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">Pat McCormick is preparing an RFC for upstreaming the
<i>fir-dev</i> branch to the main LLVM branch; sent preview to additional people and should go out soon; this is becoming more urgent<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">Nichols Romero has an llvm-dev RFC for adding Fortran tests to the llvm-tests project:
<a href="http://lists.llvm.org/pipermail/llvm-dev/2020-November/146873.html">http://lists.llvm.org/pipermail/llvm-dev/2020-November/146873.html</a><o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">Andzrej Warzynski has a flang-dev RFC regarding flang option names:
<a href="http://lists.llvm.org/pipermail/flang-dev/2020-November/000588.html">http://lists.llvm.org/pipermail/flang-dev/2020-November/000588.html</a><o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">Andzrej Warzynski has a cfe-dev RFC regarding refactoring clang to help flang driver become independent of clang:
<a href="http://lists.llvm.org/pipermail/cfe-dev/2020-November/067263.html">http://lists.llvm.org/pipermail/cfe-dev/2020-November/067263.html</a><o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">More bug fixes<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">Continued work on lowering and runtime support for allocatables<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">Changed representation of CHARACTER data in type system<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">Changed COMPLEX expression representation<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">Continued work on array expression lowering<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">OpenACC parsing updates and semantic<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">Valentin Clement will be adding support for OpenACC 3.1 now that it has been released<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3">OpenMP changes coming (reductions, structure constructor); workshare loop for OpenMP is also going to be used in other MLIR projects<o:p></o:p></li></ul>
</ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l4 level1 lfo2">Classic Flang Dev news and updates<o:p></o:p></li><ul style="margin-top:0in" type="circle">
<li class="MsoNormal" style="mso-list:l4 level2 lfo2">Mostly pull request reviews<o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level2 lfo2">There is interest in adding Windows Arm support for Classic Flang<o:p></o:p></li></ul>
</ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:.75in">Merged pull requests:<o:p></o:p></p>
<ul style="margin-top:0in" type="disc">
<ul style="margin-top:0in" type="circle">
<li class="MsoNormal" style="mso-list:l4 level2 lfo2"><a href="https://github.com/flang-compiler/flang/pull/883">#883</a>: Flang generated executable does not show result variable of function<o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level2 lfo2"><a href="https://github.com/flang-compiler/flang/pull/933">#933</a>: Updating X-flag entries for internal command line option "-x 49"<o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level2 lfo2"><a href="https://github.com/flang-compiler/flang/pull/939">#939</a>: Publish Arm's internal documentation - part I<o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level2 lfo2"><a href="https://github.com/flang-compiler/flang/pull/941">#941</a>: [DebugInfo] Flang gen exec does not show containing subprogram variable in gdb<o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level2 lfo2"><a href="https://github.com/flang-compiler/flang/pull/942">#942</a>: Implement UNROLL(n) directive (combines #742, #660)<o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level2 lfo2"><a href="https://github.com/flang-compiler/flang/pull/945">#945</a>: libpgmath: Stop using pgstdinit.h<o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level2 lfo2">Classic-flang llvm-project <a href="https://github.com/flang-compiler/classic-flang-llvm-project/pull/6">
#6</a>: Removing a few CI pipelines<o:p></o:p></li></ul>
</ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>Details (</b>Updates below are in <b>bold</b>)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoNormal" style="margin-left:-.25in;mso-list:l8 level1 lfo4"><b>Flang on GitHub</b><o:p></o:p></li></ol>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l13 level1 lfo5">
<![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>LLVM Flang is in <a href="https://github.com/llvm/llvm-project/tree/master/flang">
https://github.com/llvm/llvm-project/tree/master/flang</a>.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l13 level1 lfo5">
<![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>There have been <b>2,808</b> commits for LLVM Flang encompassing just over
<b>172,000</b> lines of code, documentation, CMakefiles and tests.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l13 level1 lfo5">
<![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>There have been <b>1,718</b> total commits to Classic Flang in github.com/flang-compiler/flang.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l13 level1 lfo5">
<![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>There are <b>552</b> people who have “starred” the Classic Flang repo and
<b>85</b> forks.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="2" type="1">
<li class="MsoNormal" style="margin-left:-.25in;mso-list:l8 level1 lfo4"><b>Flang Community Technical Call (Hosted by Johannes Doerfert)</b><o:p></o:p></li></ol>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l11 level1 lfo6"><b>The next technical community call topics:</b><o:p></o:p></li><ul style="margin-top:0in" type="circle">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l11 level2 lfo6">Outstanding RFCs.<o:p></o:p></li></ul>
</ul>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l6 level1 lfo7"><b>Future Topics and tentative dates:</b><o:p></o:p></li></ul>
<ol style="margin-top:0in" start="1" type="1">
<ul style="margin-top:0in" type="circle">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l7 level2 lfo8">Please feel free to add agenda topics to the Google Doc:
<a href="https://docs.google.com/document/d/1Z2U5UAtJ-Dag5wlMaLaW1KRmNgENNAYynJqLW2j2AZQ/">
https://docs.google.com/document/d/1Z2U5UAtJ-Dag5wlMaLaW1KRmNgENNAYynJqLW2j2AZQ/</a>.<o:p></o:p></li></ul>
</ol>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="3" type="1">
<li class="MsoNormal" style="margin-left:-.25in;mso-list:l8 level1 lfo4"><b>The LLVM alias analysis call was held Tuesday, November 3.</b><o:p></o:p></li></ol>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l6 level1 lfo7">Discussion of review process for full restrict patches.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l6 level1 lfo7">The agenda document is at
<a href="https://docs.google.com/document/d/1ybwEKDVtIbhIhK50qYtwKsL50K-NvB6LfuBsfepBZ9Y">
https://docs.google.com/document/d/1ybwEKDVtIbhIhK50qYtwKsL50K-NvB6LfuBsfepBZ9Y</a>.<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="4" type="1">
<li class="MsoNormal" style="margin-left:-.25in;mso-list:l8 level1 lfo4"><b>OpenMP Technical Call</b><o:p></o:p></li></ol>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo9">The call is held every Thursday at 8 am PDT/4 pm BST/8.30 pm IST to coordinate OpenMP work. The primary agenda item of the call is a development update from the engineers involved.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo9">Participants include AMD, Arm, the US National Labs and BSC.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo9">Kiran Kumar (email in CC) from AMD hosts the call. Please let him know if you plan to join and need an invite.<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="5" type="1">
<li class="MsoNormal" style="margin-left:-.25in;mso-list:l8 level1 lfo4"><b>Flang community</b><o:p></o:p></li></ol>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l9 level1 lfo10"><b>Websites: LLVM Flang: <a href="https://flang.llvm.org">
https://flang.llvm.org</a><o:p></o:p></b></li></ul>
<p class="MsoNormal" style="margin-left:.75in"><b>Classic Flang:</b> <a href="https://github.com/flang-compiler/flang">
https://github.com/flang-compiler/flang</a>.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l9 level1 lfo10"><b>Issues:</b><o:p></o:p></li></ul>
<ul style="margin-top:0in" type="disc">
<ul style="margin-top:0in" type="circle">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l10 level2 lfo11">Issues for LLVM flang should be reported in Bugzilla:
<a href="https://bugs.llvm.org/">https://bugs.llvm.org/</a>. Use the “flang” tag for flang-related issues, please.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l10 level2 lfo11">Issues for Classic Flang can be reported to
<a href="https://github.com/flang-compiler/flang/issues">https://github.com/flang-compiler/flang/issues</a>.<o:p></o:p></li></ul>
</ul>
<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l9 level1 lfo10"><b>LLVM mailing lists:</b> There are now two mailing lists hosted by llvm.org:<o:p></o:p></li></ul>
<ul style="margin-top:0in" type="disc">
<ul style="margin-top:0in" type="circle">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l5 level2 lfo12">The flang-dev mailing list: subscribe at
<a href="https://lists.llvm.org/cgi-bin/mailman/listinfo/flang-dev">https://lists.llvm.org/cgi-bin/mailman/listinfo/flang-dev</a>. These biweekly notes are sent to this email list.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l5 level2 lfo12">The flang-commits mailing list: subscribe at
<a href="https://lists.llvm.org/cgi-bin/mailman/listinfo/flang-commits">https://lists.llvm.org/cgi-bin/mailman/listinfo/flang-commits</a>.<o:p></o:p></li></ul>
</ul>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l9 level1 lfo10"><b>Slack: </b>The<b> </b><a href="x-msg://3/flang-compiler.slack.com">flang-compiler.slack.com
</a>workspace is used for informal real-time communication in the Flang community.<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="6" type="1">
<li class="MsoNormal" style="margin-left:-.25in;mso-list:l8 level1 lfo4"><b>What we’re up to with the llvm-project/flang Fortran 2018 compiler</b><o:p></o:p></li></ol>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l2 level1 lfo13"><b>On GitHub: </b>The source code LLVM Flang is available on
<a href="https://github.com/llvm/llvm-project/tree/master/flang">https://github.com/llvm/llvm-project/tree/master/flang</a>. It’s recommended to start in the “docs” directory.<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l2 level1 lfo13"><b>Public plan: </b>The team maintains a plan for upcoming Flang work at
<a href="https://github.com/orgs/flang-compiler/projects/">https://github.com/orgs/flang-compiler/projects/</a>.<b>
</b>This reflects current LLVM Flang priorities and context for the project and its long-term goals. (OpenMP work for flang, clang ad OpenMPIR is tracked separately.)<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l2 level1 lfo13"><b>Status: </b>We continue development. Recent work includes:<o:p></o:p></li></ul>
<ul style="margin-top:0in" type="disc">
<ul style="margin-top:0in" type="circle">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3"><b>Pat McCormick is preparing an RFC for upstreaming fir-dev fork; sent to additional people for comments; urgency of this is escalating as there are other changes to be made that
are gated by the merge<o:p></o:p></b></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3"><b>More bug fixes for I/O, resolving generic procedures, pointer initializers, array comparisons<o:p></o:p></b></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3"><b>Continued work on lowering and runtime support for ALLOCATE/DEALLOCATE<o:p></o:p></b></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3"><b>Continued implementation of table-driven runtime for derived types<o:p></o:p></b></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3"><b>Changed representation of CHARACTER data in type system for lowering<o:p></o:p></b></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3"><b>Changed COMPLEX expression representation to pass through to lowering without splitting into REAL operations<o:p></o:p></b></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3"><b>Continued work on array expression lowering<o:p></o:p></b></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3"><b>More updates to flang driver; Andzrej Warzynski has an RFC regarding flang option names:
<a href="http://lists.llvm.org/pipermail/flang-dev/2020-November/000588.html">http://lists.llvm.org/pipermail/flang-dev/2020-November/000588.html</a><o:p></o:p></b></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3"><b>Andzrej Warzynski has another RFC regarding refactoring clang to help flang driver become independent of clang:
<a href="http://lists.llvm.org/pipermail/cfe-dev/2020-November/067263.html">http://lists.llvm.org/pipermail/cfe-dev/2020-November/067263.html</a><o:p></o:p></b></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3"><b>OpenACC parsing updates; semantic checks for host_data; Valentin Clement will be adding support for OpenACC 3.1 now that it has been released</b><o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3"><b>OpenMP changes coming (reductions, structure constructor); workshare loop for OpenMP is also going to be used in other MLIR projects</b><o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level2 lfo3"><b>Nichols Romero has an llvm-dev RFC for adding Fortran tests to the llvm-tests project:
<a href="http://lists.llvm.org/pipermail/llvm-dev/2020-November/146873.html">http://lists.llvm.org/pipermail/llvm-dev/2020-November/146873.html</a><o:p></o:p></b></li></ul>
</ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="margin-left:0in"><o:p> </o:p></p>
<ol style="margin-top:0in" start="7" type="1">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l8 level1 lfo4"><b>What we’re up to with Classic Flang</b><o:p></o:p></li></ol>
<ul style="margin-top:0in" type="disc">
<ul style="margin-top:0in" type="circle">
<li class="MsoNormal" style="mso-list:l12 level2 lfo14">We use the flang-compiler.slack.com channel #classic-flang-pull-requests to coordinate what pull requests we are working on.<o:p></o:p></li></ul>
</ul>
<ul style="margin-top:0in" type="disc">
<ul style="margin-top:0in" type="circle">
<li class="MsoNormal" style="mso-list:l4 level2 lfo2">Recent fixes pushed to Classic Flang master<o:p></o:p></li><ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l4 level3 lfo2"><a href="https://github.com/flang-compiler/flang/pull/883"><b>#883</b></a><b>: Flang generated executable does not show result variable of function</b><o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level3 lfo2"><b><a href="https://github.com/flang-compiler/flang/pull/933">#933</a>: Updating X-flag entries for internal command line option "-x 49"<o:p></o:p></b></li><li class="MsoNormal" style="mso-list:l4 level3 lfo2"><a href="https://github.com/flang-compiler/flang/pull/939"><b>#939</b></a><b>: Publish Arm's internal documentation - part I</b><o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level3 lfo2"><a href="https://github.com/flang-compiler/flang/pull/941"><b>#941</b></a><b>: [DebugInfo] Flang gen exec does not show containing subprogram variable in gdb</b><o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level3 lfo2"><b><a href="https://github.com/flang-compiler/flang/pull/942">#942</a>: Implement UNROLL(n) directive (combines #742, #660)<o:p></o:p></b></li><li class="MsoNormal" style="mso-list:l4 level3 lfo2"><a href="https://github.com/flang-compiler/flang/pull/945"><b>#945</b></a><b>: libpgmath: Stop using pgstdinit.h</b><o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level3 lfo2"><b>Classic-flang llvm-project
<a href="https://github.com/flang-compiler/classic-flang-llvm-project/pull/6">PR#6</a>: Removing a few CI pipelines</b><o:p></o:p></li></ul>
</ul>
</ul>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0in" type="disc">
<ul style="margin-top:0in" type="circle">
<li class="MsoNormal" style="mso-list:l4 level2 lfo2"><b>Pull requests in review:</b><o:p></o:p></li><ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l4 level3 lfo2"><a href="https://github.com/flang-compiler/flang/pull/941"><b>#941</b></a><b>: Flang should generate debug location for limited instructions in prolog</b><o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level3 lfo2"><b><a href="https://github.com/flang-compiler/flang/pull/946">#946</a>: Call check_member() for PD_is_contiguous<o:p></o:p></b></li><li class="MsoNormal" style="mso-list:l4 level3 lfo2"><b><a href="https://github.com/flang-compiler/flang/pull/948">#948</a>: Expand CI to run with GCC-9/10 and LLVM-9/10/11<o:p></o:p></b></li><li class="MsoNormal" style="mso-list:l4 level3 lfo2"><b><a href="https://github.com/flang-compiler/flang/pull/951">#951</a>: Fix for ICE in atomic instruction generation<o:p></o:p></b></li><li class="MsoNormal" style="mso-list:l4 level3 lfo2"><b>Classic-flang llvm-project
<a href="https://github.com/flang-compiler/classic-flang-llvm-project/pull/7">#7</a> Github Actions added to pre-compile artifacts for flang<o:p></o:p></b></li></ul>
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<li class="MsoNormal" style="mso-list:l4 level2 lfo2">Outstanding pull requests: <a href="https://github.com/flang-compiler/flang/pulls">
https://github.com/flang-compiler/flang/pulls</a> for the current list of pull requests.<o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level2 lfo2">Outstanding issues: Please refer to the Issues section on GitHub for
<a href="https://github.com/flang-compiler/flang/issues"><span style="color:#0070C0">flang-compiler/flang</span></a> and
<a href="https://github.com/flang-compiler/clang/issues"><span style="color:#0070C0">flang-compiler/flang-driver</span></a>.<o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level2 lfo2">Arm is planning to set up buildbots for Classic Flang. We should also set up OpenPOWER and x86 buildbots.<o:p></o:p></li></ul>
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<li class="MsoNormal" style="mso-list:l14 level1 lfo15"><b>Classic Flang Fortran 2008 features</b><o:p></o:p></li></ul>
<p class="MsoNormal" style="margin-left:.75in">Current status of Fortran 2008 features can be found at
<a href="https://github.com/flang-compiler/flang/wiki/Fortran-2008">https://github.com/flang-compiler/flang/wiki/Fortran-2008</a>.<o:p></o:p></p>
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