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GitLab

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<h3>

 Marge Bot pushed to branch master

at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>

</h3>

<h4>

Commits:

</h4>

<ul>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ab24ed9bdb1d1b6967883f47eb432c08477d26a9">ab24ed9b</a></strong>

<div>

<span>by Ben Gamari</span>

<i>at 2020-12-11T03:55:51-05:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">users guide: Fix syntax errors

Fixes errors introduced by 3a55b3a2574f913d046f3a6f82db48d7f6df32e3.

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d3a24d3190de47044981363329337c16b5052028">d3a24d31</a></strong>

<div>

<span>by Ben Gamari</span>

<i>at 2020-12-11T03:55:51-05:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">users guide: Describe GC lifecycle events

Every time I am asked about how to interpret these events I need to

figure it out from scratch. It's well past time that the users guide

properly documents these.

</pre>

</li>

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<h4>4 changed files:</h4>

<ul>

<li class="file-stats">

<a href="#28cb2d1fcbc22664fcf251f87743f25d05fcd16f">

docs/users_guide/eventlog-formats.rst

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<a href="#6ae923e173536bf0ddb39552416a7e21767287db">

docs/users_guide/runtime_control.rst

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<a href="#2e45f2cd303dd998950a7c8042e796a5b2abd64f">

docs/users_guide/using-optimisation.rst

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<li class="file-stats">

<a href="#6c6e266b51f1c94d2ebf5aa2052f408397451f94">

rts/Stats.c

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<h4>Changes:</h4>

<li id="28cb2d1fcbc22664fcf251f87743f25d05fcd16f">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/6484f0d72a9110c5960b9185f239e6ce049b0c74...d3a24d3190de47044981363329337c16b5052028#28cb2d1fcbc22664fcf251f87743f25d05fcd16f"><strong>docs/users_guide/eventlog-formats.rst</strong></a>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -207,9 +207,61 @@ Thread and scheduling events</td>

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<pre style="margin: 0;"> <span id="LC207" class="line" lang="plaintext">   :base-ref:`Control.Concurrent.setThreadLabel`).</span>

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<pre style="margin: 0;"> <span id="LC208" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC209" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC210" class="line" lang="plaintext">.. _gc-events:</span>

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<pre style="margin: 0;">+<span id="LC211" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC212" class="line" lang="plaintext">Garbage collector events</span>

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<pre style="margin: 0;"> <span id="LC213" class="line" lang="plaintext">~~~~~~~~~~~~~~~~~~~~~~~~</span>

</pre>

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<pre style="margin: 0;"> <span id="LC214" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="215" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC215" class="line" lang="plaintext">The following events mark various points of the lifecycle of a moving garbage</span>

</pre>

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<pre style="margin: 0;">+<span id="LC216" class="line" lang="plaintext">collection.</span>

</pre>

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<pre style="margin: 0;">+<span id="LC217" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC218" class="line" lang="plaintext">A typical garbage collection will look something like the following:</span>

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<pre style="margin: 0;">+<span id="LC219" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC220" class="line" lang="plaintext">1. A capability realizes that it needs a garbage collection (e.g. as a result</span>

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<pre style="margin: 0;">+<span id="LC221" class="line" lang="plaintext">   of running out of nursery) and requests a garbage collection.  This is</span>

</pre>

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<pre style="margin: 0;">+<span id="LC222" class="line" lang="plaintext">   marked by :event-type:`REQUEST_SEQ_GC` or :event-type:`REQUEST_PAR_GC`.</span>

</pre>

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<pre style="margin: 0;">+<span id="LC223" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC224" class="line" lang="plaintext">2. As other capabilities reach yield points and suspend execution they emit</span>

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<pre style="margin: 0;">+<span id="LC225" class="line" lang="plaintext">   :event-type:`STOP_THREAD` events.</span>

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<pre style="margin: 0;">+<span id="LC226" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC227" class="line" lang="plaintext">3. When all capabilities have suspended execution, collection will begin,</span>

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<pre style="margin: 0;">+<span id="LC228" class="line" lang="plaintext">   marked by a :event-type:`GC_START` event.</span>

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<pre style="margin: 0;">+<span id="LC229" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC230" class="line" lang="plaintext">4. As individual parallel GC threads commence with scavenging they will emit</span>

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<pre style="margin: 0;">+<span id="LC231" class="line" lang="plaintext">   :event-type:`GC_WORK` events.</span>

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<pre style="margin: 0;">+<span id="LC232" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC233" class="line" lang="plaintext">5. If a parallel GC thread runs out of work it will emit a</span>

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<pre style="margin: 0;">+<span id="LC234" class="line" lang="plaintext">   :event-type:`GC_IDLE` event. If it is later handed more work it will emit</span>

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<pre style="margin: 0;">+<span id="LC235" class="line" lang="plaintext">   another :event-type:`GC_WORK` event.</span>

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<pre style="margin: 0;">+<span id="LC236" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC237" class="line" lang="plaintext">6. Eventually when scavenging has finished a :event-type:`GC_DONE` event</span>

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<pre style="margin: 0;">+<span id="LC238" class="line" lang="plaintext">   will be emitted by each GC thread.</span>

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<pre style="margin: 0;">+<span id="LC239" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC240" class="line" lang="plaintext">7. A bit of book-keeping is performed.</span>

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<pre style="margin: 0;">+<span id="LC241" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC242" class="line" lang="plaintext">8. A :event-type:`GC_END` event will be emitted marking the end of the GC cycle.</span>

</pre>

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<pre style="margin: 0;">+<span id="LC243" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC244" class="line" lang="plaintext">9. A :event-type:`HEAP_SIZE` event will be emitted giving the</span>

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<pre style="margin: 0;">+<span id="LC245" class="line" lang="plaintext">   cumulative heap allocations of the program until now.</span>

</pre>

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<pre style="margin: 0;">+<span id="LC246" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC247" class="line" lang="plaintext">10. A :event-type:`GC_STATS_GHC` event will be emitted</span>

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<pre style="margin: 0;">+<span id="LC248" class="line" lang="plaintext">   containing various details of the collection and heap state.</span>

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<pre style="margin: 0;">+<span id="LC249" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC250" class="line" lang="plaintext">11. In the case of a major collection, a</span>

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<pre style="margin: 0;">+<span id="LC251" class="line" lang="plaintext">    :event-type:`HEAP_LIVE` event will be emitted describing</span>

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<pre style="margin: 0;">+<span id="LC252" class="line" lang="plaintext">    the current size of the live on-heap data.</span>

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<pre style="margin: 0;">+<span id="LC253" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC254" class="line" lang="plaintext">12. In the case of the :ghc-flag:`-threaded` RTS, a</span>

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<pre style="margin: 0;">+<span id="LC255" class="line" lang="plaintext">    :event-type:`SPARK_COUNTERS` event will be emitted giving</span>

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<pre style="margin: 0;">+<span id="LC256" class="line" lang="plaintext">    details on how many sparks have been created, evaluated, and GC'd.</span>

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<pre style="margin: 0;">+<span id="LC257" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC258" class="line" lang="plaintext">13. As mutator threads resume execution they will emit :event-type:`RUN_THREAD`</span>

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<pre style="margin: 0;">+<span id="LC259" class="line" lang="plaintext">    events.</span>

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<pre style="margin: 0;">+<span id="LC260" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC261" class="line" lang="plaintext">Note that in the case of the concurrent non-moving collector additional events</span>

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<pre style="margin: 0;">+<span id="LC262" class="line" lang="plaintext">will be emitted during the concurrent phase of collection. These are described</span>

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<pre style="margin: 0;">+<span id="LC263" class="line" lang="plaintext">in :ref:`nonmoving-gc-events`.</span>

</pre>

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<pre style="margin: 0;">+<span id="LC264" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC265" class="line" lang="plaintext">.. event-type:: GC_START</span>

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<pre style="margin: 0;"> <span id="LC266" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC267" class="line" lang="plaintext">   :tag: 9</span>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -685,6 +737,46 @@ These events mark various stages of the</td>

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<pre style="margin: 0;"> <span id="LC737" class="line" lang="plaintext">:rts-flag:`non-moving collection <--nonmoving-gc>` lifecycle. These are enabled</span>

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<pre style="margin: 0;"> <span id="LC738" class="line" lang="plaintext">with the ``+RTS -lg`` event-set.</span>

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<pre style="margin: 0;"> <span id="LC739" class="line" lang="plaintext"></span>

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<td class="diff-line-num new new_line" data-linenumber="740" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC740" class="line" lang="plaintext">A typical non-moving collection cycle will look something like the following:</span>

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<pre style="margin: 0;">+<span id="LC741" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC742" class="line" lang="plaintext">1. The preparatory phase of collection will emit the usual events associated</span>

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<pre style="margin: 0;">+<span id="LC743" class="line" lang="plaintext">   with a moving collection. See :ref:`gc-events` for details.</span>

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<pre style="margin: 0;">+<span id="LC744" class="line" lang="plaintext"></span>

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<td class="diff-line-num new new_line" data-linenumber="745" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC745" class="line" lang="plaintext">2. The concurrent write barrier is enabled and the concurrent mark thread is</span>

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<pre style="margin: 0;">+<span id="LC746" class="line" lang="plaintext">   started. From this point forward mutator threads may emit</span>

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<pre style="margin: 0;">+<span id="LC747" class="line" lang="plaintext">   :event-type:`CONC_UPD_REM_SET_FLUSH` events, indicating that they have</span>

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<td class="diff-line-num new new_line" data-linenumber="748" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC748" class="line" lang="plaintext">   flushed their capability-local update remembered sets.</span>

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749

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<pre style="margin: 0;">+<span id="LC749" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC750" class="line" lang="plaintext">3. Concurrent marking begins, denoted by a :event-type:`CONC_MARK_BEGIN` event.</span>

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<pre style="margin: 0;">+<span id="LC751" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC752" class="line" lang="plaintext">4. When the mark queue is depleted a :event-type:`CONC_MARK_END` is emitted.</span>

</pre>

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<pre style="margin: 0;">+<span id="LC753" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC754" class="line" lang="plaintext">5. If necessary (e.g. due to weak pointer marking), the marking process will</span>

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<pre style="margin: 0;">+<span id="LC755" class="line" lang="plaintext">   continue, returning to step (3) above.</span>

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<pre style="margin: 0;">+<span id="LC756" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC757" class="line" lang="plaintext">6. When the collector has done as much concurrent marking as it can it will</span>

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<pre style="margin: 0;">+<span id="LC758" class="line" lang="plaintext">   enter the post-mark synchronization phase of collection, denoted by a</span>

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<pre style="margin: 0;">+<span id="LC759" class="line" lang="plaintext">   :event-type:`CONC_SYNC_BEGIN` event.</span>

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<pre style="margin: 0;">+<span id="LC760" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC761" class="line" lang="plaintext">7. Mutator threads will suspend execution and, if necessary, flush their update</span>

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<pre style="margin: 0;">+<span id="LC762" class="line" lang="plaintext">   remembered sets (indicated by :event-type:`CONC_UPD_REM_SET_FLUSH` events).</span>

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<pre style="margin: 0;">+<span id="LC763" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC764" class="line" lang="plaintext">8. The collector will do any final marking necessary (indicated by</span>

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<pre style="margin: 0;">+<span id="LC765" class="line" lang="plaintext">   :event-type:`CONC_MARK_BEGIN` and :event-type:`CONC_MARK_END` events).</span>

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<pre style="margin: 0;">+<span id="LC766" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC767" class="line" lang="plaintext">9. The collector will do a small amount of sweeping, disable the write barrier,</span>

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<pre style="margin: 0;">+<span id="LC768" class="line" lang="plaintext">   emit a :event-type:`CONC_SYNC_END` event, and allow mutators to resume</span>

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<pre style="margin: 0;">+<span id="LC769" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC770" class="line" lang="plaintext">10. The collector will begin the concurrent sweep phase, indicated by a</span>

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<pre style="margin: 0;">+<span id="LC771" class="line" lang="plaintext">    :event-type:`CONC_SWEEP_BEGIN` event.</span>

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<pre style="margin: 0;">+<span id="LC772" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC773" class="line" lang="plaintext">11. Once sweeping has concluded a :event-type:`CONC_SWEEP_END` event will be</span>

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<pre style="margin: 0;">+<span id="LC774" class="line" lang="plaintext">    emitted and the concurrent collector thread will terminate.</span>

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<pre style="margin: 0;">+<span id="LC775" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC776" class="line" lang="plaintext">12. A :event-type:`NONMOVING_HEAP_CENSUS` event will be emitted describing the</span>

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<pre style="margin: 0;">+<span id="LC777" class="line" lang="plaintext">    fragmentation state of the non-moving heap.</span>

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<td class="diff-line-num new new_line" data-linenumber="778" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

778

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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC778" class="line" lang="plaintext"></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="688" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="779" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

779

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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC779" class="line" lang="plaintext"></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="688" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

688

</td>

<td class="diff-line-num new_line" data-linenumber="780" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

780

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC780" class="line" lang="plaintext">.. event-type:: CONC_MARK_BEGIN</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="689" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

689

</td>

<td class="diff-line-num new_line" data-linenumber="781" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

781

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC781" class="line" lang="plaintext"></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="690" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

690

</td>

<td class="diff-line-num new_line" data-linenumber="782" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

782

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC782" class="line" lang="plaintext">   :tag: 200</span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="742" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="834" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -742,8 +834,9 @@ with the ``+RTS -lg`` event-set.</td>

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<td class="diff-line-num old_line" data-linenumber="742" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

742

</td>

<td class="diff-line-num new_line" data-linenumber="834" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

834

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC834" class="line" lang="plaintext">Non-moving heap census</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="743" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

743

</td>

<td class="diff-line-num new_line" data-linenumber="835" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

835

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC835" class="line" lang="plaintext">~~~~~~~~~~~~~~~~~~~~~~</span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="744" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

744

</td>

<td class="diff-line-num new_line" data-linenumber="836" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

836

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC836" class="line" lang="plaintext"></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="745" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

745

</td>

<td class="diff-line-num new_line old" data-linenumber="837" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC745" class="line" lang="plaintext">The non-moving heap census events (enabled with the ``+RTS -ln`` event-set) are</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="746" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

746

</td>

<td class="diff-line-num new_line old" data-linenumber="837" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

</td>

<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC746" class="line" lang="plaintext">intended to provide insight into fragmentation of the non-moving heap.</span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="747" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="837" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

837

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<pre style="margin: 0;">+<span id="LC837" class="line" lang="plaintext">The non-moving heap census events (enabled with the :rts-flag:`+RTS -ln <-l ⟨flags⟩>`</span>

</pre>

</td>

</tr>

<tr class="line_holder new" id="" style="line-height: 1.6;">

<td class="diff-line-num new old_line" data-linenumber="747" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="838" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

838

</td>

<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC838" class="line" lang="plaintext">event-set) are intended to provide insight into fragmentation of the non-moving</span>

</pre>

</td>

</tr>

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<td class="diff-line-num new old_line" data-linenumber="747" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="839" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

839

</td>

<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC839" class="line" lang="plaintext">heap.</span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="747" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

747

</td>

<td class="diff-line-num new_line" data-linenumber="840" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

840

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC840" class="line" lang="plaintext"></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="748" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

748

</td>

<td class="diff-line-num new_line" data-linenumber="841" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

841

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<pre style="margin: 0;"> <span id="LC841" class="line" lang="plaintext">.. event-type:: NONMOVING_HEAP_CENSUS</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="749" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

749

</td>

<td class="diff-line-num new_line" data-linenumber="842" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

842

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC842" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="760" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="853" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -760,8 +853,8 @@ Ticky counters</td>

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<td class="diff-line-num old_line" data-linenumber="760" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

760

</td>

<td class="diff-line-num new_line" data-linenumber="853" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

853

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC853" class="line" lang="plaintext">~~~~~~~~~~~~~~</span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="761" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

761

</td>

<td class="diff-line-num new_line" data-linenumber="854" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

854

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC854" class="line" lang="plaintext"></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="762" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

762

</td>

<td class="diff-line-num new_line" data-linenumber="855" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

855

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<pre style="margin: 0;"> <span id="LC855" class="line" lang="plaintext">Programs compiled with :ghc-flag:`-ticky` and :ghc-flag:`-eventlog` and invoked</span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="763" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

763

</td>

<td class="diff-line-num new_line old" data-linenumber="856" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC763" class="line" lang="plaintext">with <span class="idiff left right">``+RTS -lT`` will emit periodic samples of the ticky entry counters to the</span></span>

</pre>

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<pre style="margin: 0;">-<span id="LC764" class="line" lang="plaintext">eventlog.</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="765" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC856" class="line" lang="plaintext">with <span class="idiff left right">:rts-flag:`+RTS -lT <-l ⟨flags⟩>` will emit periodic samples of the ticky</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC857" class="line" lang="plaintext">e<span class="idiff left right">ntry counters to the e</span>ventlog.</span>

</pre>

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<pre style="margin: 0;"> <span id="LC858" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC859" class="line" lang="plaintext">.. event-type:: TICKY_COUNTER_DEF</span>

</pre>

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<pre style="margin: 0;"> <span id="LC860" class="line" lang="plaintext"></span>

</pre>

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<li id="6ae923e173536bf0ddb39552416a7e21767287db">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/6484f0d72a9110c5960b9185f239e6ce049b0c74...d3a24d3190de47044981363329337c16b5052028#6ae923e173536bf0ddb39552416a7e21767287db"><strong>docs/users_guide/runtime_control.rst</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1194" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1194" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1194,6 +1194,9 @@ When the program is linked with the :ghc-flag:`-eventlog` option</td>

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<pre style="margin: 0;"> <span id="LC1194" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC1195" class="line" lang="plaintext">    - ``f`` — parallel sparks (fully accurate). Disabled by default.</span>

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<pre style="margin: 0;"> <span id="LC1196" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC1197" class="line" lang="plaintext">    - ``T`` — :ghc-flag:`ticky-ticky profiler <-ticky>` events. Disabled by</span>

</pre>

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<pre style="margin: 0;">+<span id="LC1198" class="line" lang="plaintext">      default.</span>

</pre>

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<pre style="margin: 0;">+<span id="LC1199" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC1200" class="line" lang="plaintext">    - ``u`` — user events. These are events emitted from Haskell code using</span>

</pre>

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<pre style="margin: 0;"> <span id="LC1201" class="line" lang="plaintext">      functions such as ``Debug.Trace.traceEvent``. Enabled by default.</span>

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<pre style="margin: 0;"> <span id="LC1202" class="line" lang="plaintext"></span>

</pre>

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<li id="2e45f2cd303dd998950a7c8042e796a5b2abd64f">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/6484f0d72a9110c5960b9185f239e6ce049b0c74...d3a24d3190de47044981363329337c16b5052028#2e45f2cd303dd998950a7c8042e796a5b2abd64f"><strong>docs/users_guide/using-optimisation.rst</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1197" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1197" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1197,16 +1197,16 @@ by saying ``-fno-wombat``.</td>

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<pre style="margin: 0;"> <span id="LC1197" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC1198" class="line" lang="plaintext">    This is the full syntax for cardinalities, demands and sub-demands in BNF:</span>

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<pre style="margin: 0;"> <span id="LC1199" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">-<span id="LC1200" class="line" lang="plaintext">    .. code-block::</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1201" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1200" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1200

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<pre style="margin: 0;">+<span id="LC1200" class="line" lang="plaintext">    .. code-block::<span class="idiff left right"> none</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1201" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1201

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<td class="diff-line-num new_line" data-linenumber="1201" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1201

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<pre style="margin: 0;"> <span id="LC1201" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1202" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1202

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<td class="diff-line-num new_line old" data-linenumber="1202" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1202" class="line" lang="plaintext">      card ::= B | A | 1 | U | S | M    semantics as in the table above</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1203" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1202" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1202

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<pre style="margin: 0;">+<span id="LC1202" class="line" lang="plaintext">      <span class="idiff left right">  </span>card ::= B | A | 1 | U | S | M    semantics as in the table above</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1203" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1203

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<td class="diff-line-num new_line" data-linenumber="1203" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1203

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<pre style="margin: 0;"> <span id="LC1203" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1204" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1204

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<td class="diff-line-num new_line old" data-linenumber="1204" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1204" class="line" lang="plaintext">      d    ::= card sd                  card = how often, sd = how deep</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1205" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1205

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<td class="diff-line-num new_line old" data-linenumber="1204" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1205" class="line" lang="plaintext">            |  card                     abbreviation: Same as "card card"</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1206" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1204" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1204

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<pre style="margin: 0;">+<span id="LC1204" class="line" lang="plaintext">      <span class="idiff left right">  </span>d    ::= card sd                  card = how often, sd = how deep</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1206" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1205" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1205

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<pre style="margin: 0;">+<span id="LC1205" class="line" lang="plaintext">            <span class="idiff left right">  </span>|  card                     abbreviation: Same as "card card"</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1206" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1206

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<td class="diff-line-num new_line" data-linenumber="1206" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1206

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<pre style="margin: 0;"> <span id="LC1206" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1207

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<td class="diff-line-num new_line old" data-linenumber="1207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1207" class="line" lang="plaintext">      sd   ::= card                     polymorphic sub-demand, card at every level</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1208" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1208

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<td class="diff-line-num new_line old" data-linenumber="1207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1208" class="line" lang="plaintext">            |  P(d,d,..)                product sub-demand</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1209" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1209

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<td class="diff-line-num new_line old" data-linenumber="1207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1209" class="line" lang="plaintext">            |  Ccard(sd)                call sub-demand</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1210" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1207

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<pre style="margin: 0;">+<span id="LC1207" class="line" lang="plaintext">      <span class="idiff left right">  </span>sd   ::= card                     polymorphic sub-demand, card at every level</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1210" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1208" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1208

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<pre style="margin: 0;">+<span id="LC1208" class="line" lang="plaintext">            <span class="idiff left right">  </span>|  P(d,d,..)                product sub-demand</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1210" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1209" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1209

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<pre style="margin: 0;">+<span id="LC1209" class="line" lang="plaintext">            <span class="idiff left right">  </span>|  Ccard(sd)                call sub-demand</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1210" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1210

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<td class="diff-line-num new_line" data-linenumber="1210" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1210

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<pre style="margin: 0;"> <span id="LC1210" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1211" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1211

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<td class="diff-line-num new_line" data-linenumber="1211" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1211

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<pre style="margin: 0;"> <span id="LC1211" class="line" lang="plaintext">    For example, ``fst`` is strict in its argument, and also in the first</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1212" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1212

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<td class="diff-line-num new_line" data-linenumber="1212" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1212

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<pre style="margin: 0;"> <span id="LC1212" class="line" lang="plaintext">    component of the argument.  It will not evaluate the argument's second</span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1234" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1234" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1234,17 +1234,17 @@ by saying ``-fno-wombat``.</td>

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<td class="diff-line-num old_line" data-linenumber="1234" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1234

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<td class="diff-line-num new_line" data-linenumber="1234" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1234

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<pre style="margin: 0;"> <span id="LC1234" class="line" lang="plaintext">    We summarise a function's demand properties in its *demand signature*.</span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1235" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1235

</td>

<td class="diff-line-num new_line" data-linenumber="1235" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1235

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<pre style="margin: 0;"> <span id="LC1235" class="line" lang="plaintext">    This is the general syntax:</span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1236" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1236

</td>

<td class="diff-line-num new_line" data-linenumber="1236" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1236

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC1236" class="line" lang="plaintext"></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1237" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1237

</td>

<td class="diff-line-num new_line old" data-linenumber="1237" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1237" class="line" lang="plaintext">    .. code-block::</span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1238" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1237" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1237

</td>

<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC1237" class="line" lang="plaintext">    .. code-block::<span class="idiff left right"> none</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1238" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1238

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<td class="diff-line-num new_line" data-linenumber="1238" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1238

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC1238" class="line" lang="plaintext"></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1239" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1239

</td>

<td class="diff-line-num new_line old" data-linenumber="1239" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC1239" class="line" lang="plaintext">     {x->dx,y->dy,z->dz...}<d1><d2><d3>...<dn>div</span>

</pre>

</td>

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<tr class="line_holder old" id="" style="line-height: 1.6;">

<td class="diff-line-num old old_line" data-linenumber="1240" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1240

</td>

<td class="diff-line-num new_line old" data-linenumber="1239" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC1240" class="line" lang="plaintext">             ^              ^   ^   ^      ^   ^</span>

</pre>

</td>

</tr>

<tr class="line_holder old" id="" style="line-height: 1.6;">

<td class="diff-line-num old old_line" data-linenumber="1241" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1241

</td>

<td class="diff-line-num new_line old" data-linenumber="1239" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC1241" class="line" lang="plaintext">             |              |   |   |      |   |</span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1242" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1242

</td>

<td class="diff-line-num new_line old" data-linenumber="1239" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC1242" class="line" lang="plaintext">             |              \---+---+------/   |</span>

</pre>

</td>

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<tr class="line_holder old" id="" style="line-height: 1.6;">

<td class="diff-line-num old old_line" data-linenumber="1243" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1243

</td>

<td class="diff-line-num new_line old" data-linenumber="1239" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

</td>

<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC1243" class="line" lang="plaintext">             |                  |              |</span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1244" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1244

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<td class="diff-line-num new_line old" data-linenumber="1239" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1244" class="line" lang="plaintext">        demand on free        demand on      divergence</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1245" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1245

</td>

<td class="diff-line-num new_line old" data-linenumber="1239" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1245" class="line" lang="plaintext">          variables           arguments      information</span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1246" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1246

</td>

<td class="diff-line-num new_line old" data-linenumber="1239" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

</td>

<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC1246" class="line" lang="plaintext">      (omitted if empty)                     (omitted if</span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1247" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1247

</td>

<td class="diff-line-num new_line old" data-linenumber="1239" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

</td>

<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC1247" class="line" lang="plaintext">                                           no information)</span>

</pre>

</td>

</tr>

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<td class="diff-line-num new old_line" data-linenumber="1248" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1239" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1239

</td>

<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC1239" class="line" lang="plaintext">     <span class="idiff left right">   </span>{x->dx,y->dy,z->dz...}<d1><d2><d3>...<dn>div</span>

</pre>

</td>

</tr>

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<td class="diff-line-num new old_line" data-linenumber="1248" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1240" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1240

</td>

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<pre style="margin: 0;">+<span id="LC1240" class="line" lang="plaintext">             <span class="idiff left right">   </span>^              ^   ^   ^      ^   ^</span>

</pre>

</td>

</tr>

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<td class="diff-line-num new old_line" data-linenumber="1248" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1241" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1241

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<pre style="margin: 0;">+<span id="LC1241" class="line" lang="plaintext">             <span class="idiff left right">   </span>|              |   |   |      |   |</span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1248" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1242" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1242

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<pre style="margin: 0;">+<span id="LC1242" class="line" lang="plaintext">             <span class="idiff left right">   </span>|              \---+---+------/   |</span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1248" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1243" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1243

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<pre style="margin: 0;">+<span id="LC1243" class="line" lang="plaintext">             <span class="idiff left right">   </span>|                  |              |</span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1248" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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1244

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<pre style="margin: 0;">+<span id="LC1244" class="line" lang="plaintext">        <span class="idiff left right">   </span>demand on free        demand on      divergence</span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="1245" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC1245" class="line" lang="plaintext">          <span class="idiff left right">   </span>variables           arguments      information</span>

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<td class="diff-line-num new old_line" data-linenumber="1248" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1246" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC1246" class="line" lang="plaintext">      <span class="idiff left right">   </span>(omitted if empty)                     (omitted if</span>

</pre>

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<pre style="margin: 0;">+<span id="LC1247" class="line" lang="plaintext">                                           <span class="idiff left right">   </span>no information)</span>

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1248

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<pre style="margin: 0;"> <span id="LC1248" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1249" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<td class="diff-line-num new_line" data-linenumber="1249" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<pre style="margin: 0;"> <span id="LC1249" class="line" lang="plaintext">    We summarise ``fst``'s demand properties in its *demand signature*</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1250" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1250

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1250

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<pre style="margin: 0;"> <span id="LC1250" class="line" lang="plaintext">    ``<SP(SU,A)>``, which just says "If ``fst`` is applied to one argument,</span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1260" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1260" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1260,13 +1260,11 @@ by saying ``-fno-wombat``.</td>

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<pre style="margin: 0;"> <span id="LC1260" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1261" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<td class="diff-line-num new_line" data-linenumber="1261" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<pre style="margin: 0;"> <span id="LC1261" class="line" lang="plaintext">    **Call sub-demands**</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1262" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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1262

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<pre style="margin: 0;"> <span id="LC1262" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1263" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<td class="diff-line-num new_line old" data-linenumber="1263" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1263" class="line" lang="plaintext">    Consider ``maybe``:</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1264" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC1263" class="line" lang="plaintext">    Consider ``maybe``:<span class="idiff left right"> ::</span></span>

</pre>

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1264

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<pre style="margin: 0;"> <span id="LC1264" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1265" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1265

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<td class="diff-line-num new_line old" data-linenumber="1265" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1265" class="line" lang="plaintext">    .. code-block::</span>

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<td class="diff-line-num old old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<td class="diff-line-num new_line old" data-linenumber="1265" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1266" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1267" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<td class="diff-line-num new_line old" data-linenumber="1265" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1267" class="line" lang="plaintext">     maybe :: b -> (a -> b) -> Maybe a -> b</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1268" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1268

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<td class="diff-line-num new_line old" data-linenumber="1265" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1268" class="line" lang="plaintext">     maybe n _ Nothing  = n</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1269" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1269

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<td class="diff-line-num new_line old" data-linenumber="1265" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1269" class="line" lang="plaintext">     maybe _ s (Just a) = s a</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1270" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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1265

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<pre style="margin: 0;">+<span id="LC1265" class="line" lang="plaintext">        maybe :: b -> (a -> b) -> Maybe a -> b</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1270" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1266

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<pre style="margin: 0;">+<span id="LC1266" class="line" lang="plaintext">        maybe n _ Nothing  = n</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1270" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1267" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1267

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<pre style="margin: 0;">+<span id="LC1267" class="line" lang="plaintext">        maybe _ s (Just a) = s a</span>

</pre>

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1270

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1268

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<pre style="margin: 0;"> <span id="LC1268" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1271" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1271

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<td class="diff-line-num new_line" data-linenumber="1269" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1269

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<pre style="margin: 0;"> <span id="LC1269" class="line" lang="plaintext">    We give it demand signature ``<U><1C1(U)><SU>``.  The ``C1(U)`` is a *call</span>

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1272

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<td class="diff-line-num new_line" data-linenumber="1270" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1270

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<pre style="margin: 0;"> <span id="LC1270" class="line" lang="plaintext">    sub-demand* that says "Called at most once, where the result is used</span>

</pre>

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<br>

</li>

<li id="6c6e266b51f1c94d2ebf5aa2052f408397451f94">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/6484f0d72a9110c5960b9185f239e6ce049b0c74...d3a24d3190de47044981363329337c16b5052028#6c6e266b51f1c94d2ebf5aa2052f408397451f94"><strong>rts/Stats.c</strong></a>

<hr>

<table class="code white" style="font-family: monospace; font-size: 90%;" bgcolor="#fff" width="100%" cellpadding="0" cellspacing="0">

<tr class="line_holder match" id="" style="line-height: 1.6;">

<td class="diff-line-num unfold js-unfold old_line" data-linenumber="570" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="570" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -570,7 +570,7 @@ stat_endGC (Capability *cap, gc_thread *initiating_gct, W_ live, W_ copied, W_ s</td>

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<td class="diff-line-num old_line" data-linenumber="570" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

570

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<td class="diff-line-num new_line" data-linenumber="570" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

570

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<pre style="margin: 0;"> <span id="LC570" class="line" lang="c">        <span class="c1" style="color: #998; font-style: italic;">// Emit events to the event log</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="571" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

571

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<td class="diff-line-num new_line" data-linenumber="571" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

571

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<pre style="margin: 0;"> <span id="LC571" class="line" lang="c"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="572" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

572

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<td class="diff-line-num new_line" data-linenumber="572" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

572

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<pre style="margin: 0;"> <span id="LC572" class="line" lang="c">        <span class="c1" style="color: #998; font-style: italic;">// Has to be emitted while all caps stopped for GC, but before GC_END.</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="573" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

573

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<td class="diff-line-num new_line old" data-linenumber="573" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC573" class="line" lang="c">        <span class="c1" style="color: #998; font-style: italic;">// See <span class="idiff left right">trac.haskell.org/ThreadScope/wiki</span>/RTSsummaryEvents</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="574" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="573" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

573

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<pre style="margin: 0;">+<span id="LC573" class="line" lang="c">        <span class="c1" style="color: #998; font-style: italic;">// See <span class="idiff left right">https://gitlab.haskell.org/ghc/ghc/-/wikis</span>/RTSsummaryEvents</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="574" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

574

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<td class="diff-line-num new_line" data-linenumber="574" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

574

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<pre style="margin: 0;"> <span id="LC574" class="line" lang="c">        <span class="c1" style="color: #998; font-style: italic;">// for a detailed design rationale of the current setup</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="575" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

575

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<td class="diff-line-num new_line" data-linenumber="575" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

575

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<pre style="margin: 0;"> <span id="LC575" class="line" lang="c">        <span class="c1" style="color: #998; font-style: italic;">// of GC eventlog events.</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="576" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

576

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<td class="diff-line-num new_line" data-linenumber="576" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

576

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<pre style="margin: 0;"> <span id="LC576" class="line" lang="c">        <span class="n" style="color: #333;">traceEventGcGlobalSync</span><span class="p">(</span><span class="n" style="color: #333;">cap</span><span class="p">);</span></span>

</pre>

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