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<div class="content">
<h3 style="margin-top: 20px; margin-bottom: 10px;">
Sylvain Henry pushed to branch wip/javascript-backend at <a href="https://gitlab.haskell.org/ghc/ghc" style="color: #1068bf;">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
Commits:
</h4>
<ul>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e41b2f55304bdf3bfb2b67c8e4db06e532cd63fc" style="color: #1068bf;">e41b2f55</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2022-11-05T14:18:10+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump unix submodule to 2.8.0.0
Also bumps process and ghc-boot bounds on unix.
For hadrian, when cross-compiling, we add -Wwarn=unused-imports
-Wwarn=unused-top-binds to validation flavour. Further fixes in unix
and/or hsc2hs is needed to make it completely free of warnings; for
the time being, this change is needed to unblock other
cross-compilation related work.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/42938a58e25f433ca7c202742f112ec9c01ca34d" style="color: #1068bf;">42938a58</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2022-11-05T14:18:10+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump Win32 submodule to 2.13.4.0
Fixes #22098
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e7372bc52175cecda67c95eb3b5bb0164359deeb" style="color: #1068bf;">e7372bc5</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-06T13:15:22+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump ci-images revision
ci-images has recently been updated, including changes needed for wasm32-wasi CI.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88cb9492d3981095ecd1e9fe9175ac951b4f5a28" style="color: #1068bf;">88cb9492</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-06T13:15:22+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump gmp-tarballs submodule
Includes a fix for wasm support, doesn't impact other targets.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/69427ce964758b325abd881b4b3db8d59fecc878" style="color: #1068bf;">69427ce9</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-06T13:15:22+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump haskeline submodule
Includes a fix for wasm support, doesn't impact other targets.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5fe11fe612e1881bd4d1b9d5950d0d801e08e159" style="color: #1068bf;">5fe11fe6</a></strong>
<div>
<span> by Carter Schonwald </span> <i> at 2022-11-07T13:22:14-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>bump llvm upper bound</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/68f49874aa217c2222c80c596ef11ffd992b459a" style="color: #1068bf;">68f49874</a></strong>
<div>
<span> by M Farkas-Dyck </span> <i> at 2022-11-08T12:53:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Define `Infinite` list and use where appropriate.
Also add perf test for infinite list fusion.
In particular, in `GHC.Core`, often we deal with infinite lists of roles. Also in a few locations we deal with infinite lists of names.
Thanks to simonpj for helping to write the Note [Fusion for `Infinite` lists].
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ce726cd2a3182006999c57eff73368ab9a4f7c60" style="color: #1068bf;">ce726cd2</a></strong>
<div>
<span> by Ross Paterson </span> <i> at 2022-11-08T12:54:34-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix TypeData issues (fixes #22315 and #22332)
There were two bugs here:
1. Treating type-level constructors as PromotedDataCon doesn't always
work, in particular because constructors promoted via DataKinds are
called both T and 'T. (Tests T22332a, T22332b, T22315a, T22315b)
Fix: guard these cases with isDataKindsPromotedDataCon.
2. Type-level constructors were sent to the code generator, producing
things like constructor wrappers. (Tests T22332a, T22332b)
Fix: test for them in isDataTyCon.
Other changes:
* changed the marking of "type data" DataCon's as suggested by SPJ.
* added a test TDGADT for a type-level GADT.
* comment tweaks
* change tcIfaceTyCon to ignore IfaceTyConInfo, so that IfaceTyConInfo
is used only for pretty printing, not for typechecking. (SPJ)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/132f89089cc463172329b8f8766ad5c799ce2058" style="color: #1068bf;">132f8908</a></strong>
<div>
<span> by Jade Lovelace </span> <i> at 2022-11-08T12:55:18-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Clarify msum/asum documentation
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bb5888c5782762125b81857b60400d621b4ac02e" style="color: #1068bf;">bb5888c5</a></strong>
<div>
<span> by Jade Lovelace </span> <i> at 2022-11-08T12:55:18-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add example for (<$)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/080fffa1015bcc0cff8ab4ad1eeb507fb7a13383" style="color: #1068bf;">080fffa1</a></strong>
<div>
<span> by Jade Lovelace </span> <i> at 2022-11-08T12:55:18-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Document what Alternative/MonadPlus instances actually do
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/92ccb8de9624ea930d66152b2f6a181941a497c9" style="color: #1068bf;">92ccb8de</a></strong>
<div>
<span> by Giles Anderson </span> <i> at 2022-11-09T09:27:52-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use TcRnDiagnostic in GHC.Tc.TyCl.Instance (#20117)
The following `TcRnDiagnostic` messages have been introduced:
TcRnWarnUnsatisfiedMinimalDefinition
TcRnMisplacedInstSig
TcRnBadBootFamInstDeclErr
TcRnIllegalFamilyInstance
TcRnAssocInClassErr
TcRnBadFamInstDecl
TcRnNotOpenFamily
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/90c5abd4581b404f715e72ad55303e18d0c31d68" style="color: #1068bf;">90c5abd4</a></strong>
<div>
<span> by Hécate Moonlight </span> <i> at 2022-11-09T09:28:30-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>GHCi tags generation phase 2
see #19884
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f9f17b68b144a7ecb91395c1e987bbf4f91c0180" style="color: #1068bf;">f9f17b68</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2022-11-10T12:20:03+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fire RULES in the Specialiser
The Specialiser has, for some time, fires class-op RULES in the
specialiser itself: see
Note [Specialisation modulo dictionary selectors]
This MR beefs it up a bit, so that it fires /all/ RULES in the
specialiser, not just class-op rules. See
Note [Fire rules in the specialiser]
The result is a bit more specialisation; see test
simplCore/should_compile/T21851_2
This pushed me into a bit of refactoring. I made a new data types
GHC.Core.Rules.RuleEnv, which combines
- the several source of rules (local, home-package, external)
- the orphan-module dependencies
in a single record for `getRules` to consult. That drove a bunch of
follow-on refactoring, including allowing me to remove
cr_visible_orphan_mods from the CoreReader data type.
I moved some of the RuleBase/RuleEnv stuff into GHC.Core.Rule.
The reorganisation in the Simplifier improve compile times a bit
(geom mean -0.1%), but T9961 is an outlier
Metric Decrease:
T9961
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2b3d0beec2668963c332b4490328aee256f07766" style="color: #1068bf;">2b3d0bee</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2022-11-10T12:21:13+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make indexError work better
The problem here is described at some length in
Note [Boxity for bottoming functions] and
Note [Reboxed crud for bottoming calls] in GHC.Core.Opt.DmdAnal.
This patch adds a SPECIALISE pragma for indexError, which
makes it much less vulnerable to the problem described in
these Notes.
(This came up in another line of work, where a small change made
indexError do reboxing (in nofib/spectral/simple/table_sort)
that didn't happen before my change. I've opened #22404
to document the fagility.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/399e921b05493d79f04e77806c1562806f118d4a" style="color: #1068bf;">399e921b</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2022-11-10T12:21:14+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix DsUselessSpecialiseForClassMethodSelector msg
The error message for DsUselessSpecialiseForClassMethodSelector
was just wrong (a typo in some earlier work); trivial fix
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dac0682aa57db284f858a57393ee6f32c5314562" style="color: #1068bf;">dac0682a</a></strong>
<div>
<span> by Sebastian Graf </span> <i> at 2022-11-10T21:16:01-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>WorkWrap: Unboxing unboxed tuples is not always useful (#22388)
See Note [Unboxing through unboxed tuples].
Fixes #22388.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1230c2689db2e510b5a9b280c1a4eca832c23ccc" style="color: #1068bf;">1230c268</a></strong>
<div>
<span> by Sebastian Graf </span> <i> at 2022-11-10T21:16:01-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Boxity: Handle argument budget of unboxed tuples correctly (#21737)
Now Budget roughly tracks the combined width of all arguments after unarisation.
See the changes to `Note [Worker argument budgets]`.
Fixes #21737.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2829fd9257abc1b78ebd27692de96fb74c6afcfa" style="color: #1068bf;">2829fd92</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:54-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>autoconf: check getpid getuid raise
This patch adds checks for getpid, getuid and raise in autoconf. These
functions are absent in wasm32-wasi and thus needs to be checked.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f5dfd1b48f82d08d7346a1988ec08ec3544c940c" style="color: #1068bf;">f5dfd1b4</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: add -Wwarn only for cross-compiling unix
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2e6ab4537ff5a2d496de44a0475efb274867317a" style="color: #1068bf;">2e6ab453</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: add targetSupportsThreadedRts flag
This patch adds a targetSupportsThreadedRts flag to indicate whether
the target supports the threaded rts at all, different from existing
targetSupportsSMP that checks whether -N is supported by the RTS. All
existing flavours have also been updated accordingly to respect this
flags.
Some targets (e.g. wasm32-wasi) does not support the threaded rts,
therefore this flag is needed for the default flavours to work. It
makes more sense to have proper autoconf logic to check for threading
support, but for the time being, we just set the flag to False iff the
target is wasm32.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8104f6f5524d324e56fe903d07aab4cad16ceaf5" style="color: #1068bf;">8104f6f5</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix Cmm symbol kind
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b2035823daa804d7bc83f4a4b8d51c7ed14da9a0" style="color: #1068bf;">b2035823</a></strong>
<div>
<span> by Norman Ramsey </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>add the two key graph modules from Martin Erwig's FGL
Martin Erwig's FGL (Functional Graph Library) provides an "inductive"
representation of graphs. A general graph has labeled nodes and
labeled edges. The key operation on a graph is to decompose it by
removing one node, together with the edges that connect the node to
the rest of the graph. There is also an inverse composition
operation.
The decomposition and composition operations make this representation
of graphs exceptionally well suited to implement graph algorithms in
which the graph is continually changing, as alluded to in #21259.
This commit adds `GHC.Data.Graph.Inductive.Graph`, which defines the
interface, and `GHC.Data.Graph.Inductive.PatriciaTree`, which provides
an implementation. Both modules are taken from `fgl-5.7.0.3` on
Hackage, with these changes:
- Copyright and license text have been copied into the files
themselves, not stored separately.
- Some calls to `error` have been replaced with calls to `panic`.
- Conditional-compilation support for older versions of GHC,
`containers`, and `base` has been removed.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3633a5f5b001c3519b78c956cff4657f5ddde445" style="color: #1068bf;">3633a5f5</a></strong>
<div>
<span> by Norman Ramsey </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>add new modules for reducibility and WebAssembly translation
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df7bfef8f72bb32663d3828bf096587525f09335" style="color: #1068bf;">df7bfef8</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add support for the wasm32-wasi target tuple
This patch adds the wasm32-wasi tuple support to various places in the
tree: autoconf, hadrian, ghc-boot and also the compiler. The codegen
logic will come in subsequent commits.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/32ae62e61e811bf99def141a388a3f0abc8b7107" style="color: #1068bf;">32ae62e6</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>deriveConstants: parse .ll output for wasm32 due to broken nm
This patch makes deriveConstants emit and parse an .ll file when
targeting wasm. It's a necessary workaround for broken llvm-nm on
wasm, which isn't capable of reporting correct constant values when
parsing an object.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/07e92c92673c48db0325f101d07d73134ed79fe9" style="color: #1068bf;">07e92c92</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: workaround cmm's improper variadic ccall breaking wasm32 typechecking
Unlike other targets, wasm requires the function signature of the call
site and callee to strictly match. So in Cmm, when we call a C
function that actually returns a value, we need to add an _unused
local variable to receive it, otherwise type error awaits.
An even bigger problem is calling variadic functions like barf() and
such. Cmm doesn't support CAPI calling convention yet, so calls to
variadic functions just happen to work in some cases with some
target's ABI. But again, it doesn't work with wasm. Fortunately, the
wasm C ABI lowers varargs to a stack pointer argument, and it can be
passed NULL when no other arguments are expected to be passed. So we
also add the additional unused NULL arguments to those functions, so
to fix wasm, while not affecting behavior on other targets.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/00124d12d3ab21951104b279dbc6999b8ea42fba" style="color: #1068bf;">00124d12</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: correct sleep() signature in T5611
In libc, sleep() returns an integer. The ccall type signature should
match the libc definition, otherwise it causes linker error on wasm.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d72466a9fdb2e65196b5d243495cadd68bb07aa2" style="color: #1068bf;">d72466a9</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: prefer ffi_type_void over FFI_TYPE_VOID
This patch uses ffi_type_void instead of FFI_TYPE_VOID in the
interpreter code, since the FFI_TYPE_* macros are not available in
libffi-wasm32 yet. The libffi public documentation also only mentions
the lower-case ffi_type_* symbols, so we should prefer the lower-case
API here.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4d36a1d37d826006b9832f1aabea4c9cd5104a3d" style="color: #1068bf;">4d36a1d3</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: don't define RTS_USER_SIGNALS when signal.h is not present
In the rts, we have a RTS_USER_SIGNALS macro, and most signal-related
logic is guarded with RTS_USER_SIGNALS. This patch extends the range
of code guarded with RTS_USER_SIGNALS, and define RTS_USER_SIGNALS iff
signal.h is actually detected by autoconf. This is required for
wasm32-wasi to work, which lacks signals.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3f1e164f68aedee576e87f7548592a221896d229" style="color: #1068bf;">3f1e164f</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: use HAVE_GETPID to guard subprocess related logic
We've previously added detection of getpid() in autoconf. This patch
uses HAVE_GETPID to guard some subprocess related logic in the RTS.
This is required for certain targets like wasm32-wasi, where there
isn't a process model at all.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/50bf5e77891c6a28d1e610ba1da77f877195f1c0" style="color: #1068bf;">50bf5e77</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: IPE.c: don't do mutex stuff when THREADED_RTS is not defined
This patch adds the missing THREADED_RTS CPP guard to mutex logic in
IPE.c.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ed3b3da00e2d7b997605926c60bbf55ddb9ba799" style="color: #1068bf;">ed3b3da0</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: genericRaise: use exit() instead when not HAVE_RAISE
We check existence of raise() in autoconf, and here, if not
HAVE_RAISE, we should use exit() instead in genericRaise.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c0ba1547ca4cd16735c7e375b71d6ea6737387de" style="color: #1068bf;">c0ba1547</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: checkSuid: don't do it when not HAVE_GETUID
When getuid() is not present, don't do checkSuid since it doesn't make
sense anyway on that target.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d2d6dfd271b442891b2384203c59d72c7caca5b0" style="color: #1068bf;">d2d6dfd2</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: wasm32 placeholder linker
This patch adds minimal placeholder linker logic for wasm32, just
enough to unblock compiling rts on wasm32. RTS linker functionality is
not properly implemented yet for wasm32.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/65ba328539c3a6f0fa26a7dc182c2de450d836ea" style="color: #1068bf;">65ba3285</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: RtsStartup: chdir to PWD on wasm32
This patch adds a wasm32-specific behavior to RtsStartup logic. When
the PWD environment variable is present, we chdir() to it first.
The point is to workaround an issue in wasi-libc: it's currently not
possible to specify the initial working directory, it always defaults
to / (in the virtual filesystem mapped from some host directory). For
some use cases this is sufficient, but there are some other cases
(e.g. in the testsuite) where the program needs to access files
outside.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/65b82542b6b031cb63933944e35de317ffed7a06" style="color: #1068bf;">65b82542</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: no timer for wasm32
Due to the lack of threads, on wasm32 there can't be a background
timer that periodically resets the context switch flag. This patch
disables timer for wasm32, and also makes the scheduler default to -C0
on wasm32 to avoid starving threads.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e007586f3176d3a15b6295a6921efbe2a33c3d8c" style="color: #1068bf;">e007586f</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: RtsSymbols: empty RTS_POSIX_ONLY_SYMBOLS for wasm32
The default RTS_POSIX_ONLY_SYMBOLS doesn't make sense on wasm32.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0e33f66792bda2a1ced88db3ebf4689d8cfead31" style="color: #1068bf;">0e33f667</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Schedule: no FORKPROCESS_PRIMOP_SUPPORTED on wasm32
On wasm32 there isn't a process model at all, so no
FORKPROCESS_PRIMOP_SUPPORTED.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88bbdb3186f39c878677f03dbb5fd91a03632be7" style="color: #1068bf;">88bbdb31</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: LibffiAdjustor: adapt to ffi_alloc_prep_closure interface for wasm32
libffi-wasm32 only supports non-standard libffi closure api via
ffi_alloc_prep_closure(). This patch implements
ffi_alloc_prep_closure() via standard libffi closure api on other
targets, and uses it to implement adjustor functionality.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/15138746a772fce1052cf117293594019c917a90" style="color: #1068bf;">15138746</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: don't return memory to OS on wasm32
This patch makes the storage manager not return any memory on wasm32.
The detailed reason is described in Note [Megablock allocator on
wasm].
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/631af3cc8c2bbab512d9df74a33b65ff6d2e4e1f" style="color: #1068bf;">631af3cc</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: make flushExec a no-op on wasm32
This patch makes flushExec a no-op on wasm32, since there's no such
thing as executable memory on wasm32 in the first place.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/654a3d46e4ec5919e3c2d0c90db252f6a670e44a" style="color: #1068bf;">654a3d46</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: RtsStartup: don't call resetTerminalSettings, freeThreadingResources on wasm32
This patch prevents resetTerminalSettings and freeThreadingResources
to be called on wasm32, since there is no TTY or threading on wasm32
at all.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f271e7cab7e6a46d4c958bfb9f4daeee549451b7" style="color: #1068bf;">f271e7ca</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: OSThreads.h: stub types for wasm32
This patch defines stub Condition/Mutex/OSThreadId/ThreadLocalKey
types for wasm32, just enough to unblock compiling RTS. Any
threading-related functionality has been patched to be disabled on
wasm32.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a6ac67b0ac56c6d21ec05cba2ad31ec737c8f5ef" style="color: #1068bf;">a6ac67b0</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add register mapping for wasm32
This patch adds register mapping logic for wasm32. See Note [Register
mapping on WebAssembly] in wasm32 NCG for more description.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d7b33982df0dfbb5b66888037dc9baf59c8af339" style="color: #1068bf;">d7b33982</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: wasm32 specific logic
This patch adds the rest of wasm32 specific logic in rts.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f59b0f351d2376eee1cb797338d3b0a987d0d72" style="color: #1068bf;">7f59b0f3</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: fall back to using monotonic clock to emulate cputime on wasm32
On wasm32, we have to fall back to using monotonic clock to emulate
cputime, since there's no native support for cputime as a clock id.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5fcbae0b5c3e8cf9662fc46a327314705912516b" style="color: #1068bf;">5fcbae0b</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: more autoconf checks for wasm32
This patch adds more autoconf checks to base, since those functions
and headers may exist on other POSIX systems but don't exist on
wasm32.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/00a9359f965941b4344e605579531132c11a891b" style="color: #1068bf;">00a9359f</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: avoid using unsupported posix functionality on wasm32
This base patch avoids using unsupported posix functionality on
wasm32.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/34b8f61148e8ebd2d03f20ed8120d775dcd1d868" style="color: #1068bf;">34b8f611</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>autoconf: set CrossCompiling=YES in cross bindist configure
This patch fixes the bindist autoconf logic to properly set
CrossCompiling=YES when it's a cross GHC bindist.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ebeaa45736b62df3b848c30b56cf4154054d1fd" style="color: #1068bf;">5ebeaa45</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: add util functions for UniqFM and UniqMap
This patch adds addToUFM_L (backed by insertLookupWithKey),
addToUniqMap_L and intersectUniqMap_C. These UniqFM/UniqMap util
functions are used by the wasm32 NCG.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/177c56c1841f6ade0677730d7ab4fb1cd3936f52" style="color: #1068bf;">177c56c1</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: avoid -Wl,--no-as-needed for wasm32
The driver used to pass -Wl,--no-as-needed for LLD linking. This is
actually only supported for ELF targets, and must be avoided when
linking for wasm32.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/06f01c747551954e37108b714950f1fca8b6cd66" style="color: #1068bf;">06f01c74</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: allow big arith for wasm32
This patch enables Cmm big arithmetic on wasm32, since 64-bit
arithmetic can be efficiently lowered to wasm32 opcodes.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df6bb1124154bf95527bfe0645b81c89ee869940" style="color: #1068bf;">df6bb112</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: pass -Wa,--no-type-check for wasm32 when runAsPhase
This patch passes -Wa,--no-type-check for wasm32 when compiling
assembly. See the added note for more detailed explanation.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c1fe4ab6ee00b21c1918f67b58ad78be5b044109" style="color: #1068bf;">c1fe4ab6</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: enforce cmm switch planning for wasm32
This patch forcibly enable Cmm switch planning for wasm32, since
otherwise the switch tables we generate may exceed the br_table
maximum allowed size.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a8adc71e80734c6dc2e119596368f84e39fd1172" style="color: #1068bf;">a8adc71e</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: annotate CmmFileEmbed with blob length
This patch adds the blob length field to CmmFileEmbed. The wasm32 NCG
needs to know the precise size of each data segment.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/36340328a6a26529b1eb4ca0413dc87eb91fe700" style="color: #1068bf;">36340328</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: wasm32 NCG
This patch adds the wasm32 NCG.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/435f42ea0c8f0a9cfe865ec5011c2a5d1f3aaec7" style="color: #1068bf;">435f42ea</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: add wasm32-wasi release bindist job
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d8262fdcc2a1be32b7e41fd8c550a53d54d3c821" style="color: #1068bf;">d8262fdc</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: add a stronger test for cross bindists
This commit adds a simple GHC API program that parses and reprints the
original hello world program used for basic testing of cross bindists.
Before there's full cross-compilation support in the test suite
driver, this provides better coverage than the original test.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8e6ae8827a75ae2d44e1c08098f3a68fd39c2a24" style="color: #1068bf;">8e6ae882</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2022-11-11T00:26:55-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CODEOWNERS: add wasm-specific maintainers
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/707d5651e17c8cbc95c67f89a3dca7a4d4b03e49" style="color: #1068bf;">707d5651</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2022-11-11T00:27:31-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Clarify that LLVM upper bound is non-inclusive during configure (#22411)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/430eccefaef1bc78a00a5327e6e485299be674a5" style="color: #1068bf;">430eccef</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2022-11-11T13:16:45-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Check for program_invocation_short_name via autoconf
Instead of assuming support on all Linuxes.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6dab0046b575e102bf3245fd63d5ac6bc6f4204d" style="color: #1068bf;">6dab0046</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2022-11-11T13:17:22-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Fix -fdefer-diagnostics flag
The `withDeferredDiagnostics` wrapper wasn't doing anything because the
session it was modifying wasn't used in hsc_env. Therefore the fix is
simple, just push the `getSession` call into the scope of
`withDeferredDiagnostics`.
Fixes #22391
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0c691b6110b11a43d5ea2685d17bc001d2298da" style="color: #1068bf;">d0c691b6</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2022-11-11T13:18:07-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a fast path for data constructor workers
See Note [Fast path for data constructors] in
GHC.Core.Opt.Simplify.Iteration
This bypasses lots of expensive logic, in the special case of
applications of data constructors. It is a surprisingly worthwhile
improvement, as you can see in the figures below.
Metrics: compile_time/bytes allocated
------------------------------------------------
CoOpt_Read(normal) -2.0%
CoOpt_Singletons(normal) -2.0%
ManyConstructors(normal) -1.3%
T10421(normal) -1.9% GOOD
T10421a(normal) -1.5%
T10858(normal) -1.6%
T11545(normal) -1.7%
T12234(optasm) -1.3%
T12425(optasm) -1.9% GOOD
T13035(normal) -1.0% GOOD
T13056(optasm) -1.8%
T13253(normal) -3.3% GOOD
T15164(normal) -1.7%
T15304(normal) -3.4%
T15630(normal) -2.8%
T16577(normal) -4.3% GOOD
T17096(normal) -1.1%
T17516(normal) -3.1%
T18282(normal) -1.9%
T18304(normal) -1.2%
T18698a(normal) -1.2% GOOD
T18698b(normal) -1.5% GOOD
T18923(normal) -1.3%
T1969(normal) -1.3% GOOD
T19695(normal) -4.4% GOOD
T21839c(normal) -2.7% GOOD
T21839r(normal) -2.7% GOOD
T4801(normal) -3.8% GOOD
T5642(normal) -3.1% GOOD
T6048(optasm) -2.5% GOOD
T9020(optasm) -2.7% GOOD
T9630(normal) -2.1% GOOD
T9961(normal) -11.7% GOOD
WWRec(normal) -1.0%
geo. mean -1.1%
minimum -11.7%
maximum +0.1%
Metric Decrease:
T10421
T12425
T13035
T13253
T16577
T18698a
T18698b
T1969
T19695
T21839c
T21839r
T4801
T5642
T6048
T9020
T9630
T9961
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3c37d30b07fc85fe09452f4ce250aec42cb1d2e4" style="color: #1068bf;">3c37d30b</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2022-11-11T19:18:39+01:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use a more efficient printer for code generation (#21853)
The changes in `GHC.Utils.Outputable` are the bulk of the patch
and drive the rest.
The types `HLine` and `HDoc` in Outputable can be used instead of `SDoc`
and support printing directly to a handle with `bPutHDoc`.
See Note [SDoc versus HDoc] and Note [HLine versus HDoc].
The classes `IsLine` and `IsDoc` are used to make the existing code polymorphic
over `HLine`/`HDoc` and `SDoc`. This is done for X86, PPC, AArch64, DWARF
and dependencies (printing module names, labels etc.).
Co-authored-by: Alexis King <lexi.lambda@gmail.com>
Metric Decrease:
CoOpt_Read
ManyAlternatives
ManyConstructors
T10421
T12425
T12707
T13035
T13056
T13253
T13379
T18140
T18282
T18698a
T18698b
T1969
T20049
T21839c
T21839r
T3064
T3294
T4801
T5321FD
T5321Fun
T5631
T6048
T783
T9198
T9233
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6b92b47fa2386ccb2f8264110ff7a827958fb7bf" style="color: #1068bf;">6b92b47f</a></strong>
<div>
<span> by Matthew Craven </span> <i> at 2022-11-11T18:32:14-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Weaken wrinkle 1 of Note [Scrutinee Constant Folding]
Fixes #22375.
Co-authored-by: Simon Peyton Jones <simon.peytonjones@gmail.com>
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<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e74296c25b29d08c7f952173dc0a80786ebbe345" style="color: #1068bf;">e74296c2</a></strong>
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<span> by Sylvain Henry </span> <i> at 2022-11-12T11:38:50+01:00 </i>
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<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add Javascript backend
Add JS backend adapted from the GHCJS project by Luite Stegeman.
Some features haven't been ported or implemented yet. Tests for these
features have been disabled with an associated gitlab ticket.
Bump submodules
Co-authored-by: Jeffrey Young <jeffrey.young@iohk.io>
Co-authored-by: Luite Stegeman <stegeman@gmail.com>
Co-authored-by: Josh Meredith <joshmeredith2008@gmail.com>
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