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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/e992ea84248e2ac9f9d439cd9b25745e8c41e32d">e992ea84</a></strong>

<div>

<span>by GHC GitLab CI</span>

<i>at 2020-11-29T15:33:54-05:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">ThreadPaused: Don't zero slop until free vars are pushed

When threadPaused blackholes a thunk it calls `OVERWRITING_CLOSURE` to

zero the slop for the benefit of the sanity checker. Previously this was

done *before* pushing the thunk's free variables to the update

remembered set. Consequently we would pull zero'd pointers to the update

remembered set.

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e82cd140e510a792031247a8f414ade48382703b">e82cd140</a></strong>

<div>

<span>by GHC GitLab CI</span>

<i>at 2020-11-29T15:33:54-05:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">nonmoving: Fix regression from TSAN work

The TSAN rework (specifically aad1f803) introduced a subtle regression

in GC.c, swapping `g0` in place of `gen`. Whoops!

Fixes #18997.

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/35a5207e8277800b77af90d74cdd235d29a901e6">35a5207e</a></strong>

<div>

<span>by GHC GitLab CI</span>

<i>at 2020-11-29T15:33:54-05:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts/Messages: Add missing write barrier in THROWTO message update

After a THROWTO message has been handle the message closure is

overwritten by a NULL message. We must ensure that the original

closure's pointers continue to be visible to the nonmoving GC.

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0120829f47ed9ebd02ffd552d71e45cca3bdc9f6">0120829f</a></strong>

<div>

<span>by GHC GitLab CI</span>

<i>at 2020-11-29T15:33:54-05:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">nonmoving: Add missing write barrier in shrinkSmallByteArray

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8a4d8fb62abde3b79043e8915ee538aaabe2d97c">8a4d8fb6</a></strong>

<div>

<span>by GHC GitLab CI</span>

<i>at 2020-11-29T15:33:54-05:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Updates: Don't zero slop until closure has been pushed

Ensure that the the free variables have been pushed to the update

remembered set before we zero the slop.

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2793cfdc8f7dca8461149d54882286a76f52ff84">2793cfdc</a></strong>

<div>

<span>by GHC GitLab CI</span>

<i>at 2020-11-29T15:33:54-05:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">OSThreads: Fix error code checking

pthread_join returns its error code and apparently doesn't set errno.

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e391a16f919e5bebf75355e8dd1542cdc5656198">e391a16f</a></strong>

<div>

<span>by GHC GitLab CI</span>

<i>at 2020-11-29T15:33:54-05:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">nonmoving: Don't join to mark_thread on shutdown

The mark thread is not joinable as we detach from it on creation.

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/60d088aba238c7265adf76840ec1d883373b0e20">60d088ab</a></strong>

<div>

<span>by Ben Gamari</span>

<i>at 2020-11-29T15:33:54-05:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">nonmoving: Add reference to Ueno 2016

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3aa603620ef5a6aae1778278aa9914f344ab526e">3aa60362</a></strong>

<div>

<span>by GHC GitLab CI</span>

<i>at 2020-11-29T15:33:54-05:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">nonmoving: Ensure that evacuated large objects are marked

See Note [Non-moving GC: Marking evacuated objects].

</pre>

</li>

</ul>

<h4>11 changed files:</h4>

<ul>

<li class="file-stats">

<a href="#aa19e824b3a8c24a7bf37f8352997022b14a5a0c">

includes/rts/storage/ClosureMacros.h

</a>

</li>

<li class="file-stats">

<a href="#63bb2dcb45bf7982130b0b95ecf366bf1a617e82">

rts/Messages.c

</a>

</li>

<li class="file-stats">

<a href="#f639149fde351603cc3df9c8c4ba87744bcfc523">

rts/Messages.h

</a>

</li>

<li class="file-stats">

<a href="#6db965f97cbab901f493506a385bcf1283009921">

rts/PrimOps.cmm

</a>

</li>

<li class="file-stats">

<a href="#515f190a948b1d6c490c96f75a3f909580e927b0">

rts/RaiseAsync.c

</a>

</li>

<li class="file-stats">

<a href="#4b22b3f666af23f7c8097b32282abfd52fb6c342">

rts/ThreadPaused.c

</a>

</li>

<li class="file-stats">

<a href="#2ffbdc61d9d0e36978f07f62c00c08f33149e335">

rts/Updates.h

</a>

</li>

<li class="file-stats">

<a href="#cc73d9e9eaa9bba27d82a52a4c9ad6e125643836">

rts/posix/OSThreads.c

</a>

</li>

<li class="file-stats">

<a href="#37a93df244a7789fddf557443b6398d06763e9cc">

rts/sm/Evac.c

</a>

</li>

<li class="file-stats">

<a href="#6477e10756faf038741e63d1ad499a1df809fe10">

rts/sm/GC.c

</a>

</li>

<li class="file-stats">

<a href="#b4a38dad10ba126e05a0b6adc99aa0c2eb742875">

rts/sm/NonMoving.c

</a>

</li>

</ul>

<h4>Changes:</h4>

<li id="aa19e824b3a8c24a7bf37f8352997022b14a5a0c">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/1bc104b029b4f043cac42253ee2387f4d574abca...3aa603620ef5a6aae1778278aa9914f344ab526e#aa19e824b3a8c24a7bf37f8352997022b14a5a0c"><strong>includes/rts/storage/ClosureMacros.h</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">@@ -520,11 +520,15 @@ INLINE_HEADER StgWord8 *mutArrPtrsCard (StgMutArrPtrs *a, W_ n)</td>

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

<pre style="margin: 0;"> <span id="LC520" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if defined(PROFILING) || defined(DEBUG)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="521" 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">

521

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<pre style="margin: 0;"> <span id="LC521" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define OVERWRITING_CLOSURE(c) \</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="522" 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">

522

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522

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<pre style="margin: 0;"> <span id="LC522" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    overwritingClosure(c)</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="523" 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="523" 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="LC523" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define OVERWRITING_CLOSURE_SIZE(c, size) \</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="523" 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="524" 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="LC524" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    overwritingClosureSize(c, size)</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="525" 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="LC525" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define OVERWRITING_CLOSURE_MUTABLE(c, off) \</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="524" 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="526" 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="LC526" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    overwritingMutableClosureOfs(c, off)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="525" 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="527" 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="LC527" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#else</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="526" 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="528" 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="LC528" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define OVERWRITING_CLOSURE(c) \</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="527" 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="529" 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="LC529" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    do { (void) sizeof(c); } while(0)</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="530" 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="LC530" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define OVERWRITING_CLOSURE_SIZE(c, size) \</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC531" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    do { (void) sizeof(c); (void) sizeof(size); } while(0)</span></span>

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<pre style="margin: 0;"> <span id="LC532" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define OVERWRITING_CLOSURE_MUTABLE(c, off) \</span></span>

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<pre style="margin: 0;"> <span id="LC533" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    do { (void) sizeof(c); (void) sizeof(off); } while(0)</span></span>

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<pre style="margin: 0;"> <span id="LC534" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>

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<li id="63bb2dcb45bf7982130b0b95ecf366bf1a617e82">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/1bc104b029b4f043cac42253ee2387f4d574abca...3aa603620ef5a6aae1778278aa9914f344ab526e#63bb2dcb45bf7982130b0b95ecf366bf1a617e82"><strong>rts/Messages.c</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="97" 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="97" 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">@@ -97,7 +97,7 @@ loop:</td>

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<pre style="margin: 0;"> <span id="LC97" class="line" lang="c">        <span class="k" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">THROWTO_SUCCESS</span><span class="p">:</span> <span class="p">{</span></span>

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<pre style="margin: 0;"> <span id="LC98" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">// this message is done</span></span>

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<pre style="margin: 0;"> <span id="LC99" class="line" lang="c">            <span class="n" style="color: #333;">StgTSO</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">source</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">t</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">source</span><span class="p">;</span></span>

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<pre style="margin: 0;">-<span id="LC100" class="line" lang="c">            <span class="n" style="color: #333;">doneWithMsgThrowTo</span><span class="p">(</span><span class="n" style="color: #333;">t</span><span class="p">);</span></span>

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<pre style="margin: 0;">+<span id="LC100" class="line" lang="c">            <span class="n" style="color: #333;">doneWithMsgThrowTo</span><span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">cap</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">t</span><span class="p">);</span></span>

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<pre style="margin: 0;"> <span id="LC101" class="line" lang="c">            <span class="n" style="color: #333;">tryWakeupThread</span><span class="p">(</span><span class="n" style="color: #333;">cap</span><span class="p">,</span> <span class="n" style="color: #333;">source</span><span class="p">);</span></span>

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<pre style="margin: 0;"> <span id="LC102" class="line" lang="c">            <span class="k" style="font-weight: 600;">break</span><span class="p">;</span></span>

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<pre style="margin: 0;"> <span id="LC103" class="line" lang="c">        <span class="p">}</span></span>

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<li id="f639149fde351603cc3df9c8c4ba87744bcfc523">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/1bc104b029b4f043cac42253ee2387f4d574abca...3aa603620ef5a6aae1778278aa9914f344ab526e#f639149fde351603cc3df9c8c4ba87744bcfc523"><strong>rts/Messages.h</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="23" 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="23" 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">@@ -23,8 +23,16 @@ void sendMessage    (Capability *from_cap, Capability *to_cap, Message *msg);</td>

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<pre style="margin: 0;"> <span id="LC23" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#include "SMPClosureOps.h"</span></span>

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<pre style="margin: 0;"> <span id="LC24" class="line" lang="c"></span>

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<pre style="margin: 0;"> <span id="LC25" class="line" lang="c"><span class="n" style="color: #333;">INLINE_HEADER</span> <span class="kt" style="color: #458; font-weight: 600;">void</span></span>

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<pre style="margin: 0;">-<span id="LC26" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">doneWithMsgThrowTo</span> <span class="p">(</span><span class="n" style="color: #333;">MessageThrowTo</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">m</span><span class="p">)</span></span>

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<pre style="margin: 0;">+<span id="LC26" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">doneWithMsgThrowTo</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">Capability</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">*</span></span><span class="n" style="color: #333;"><span class="idiff">cap</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">MessageThrowTo</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">m</span><span class="p">)</span></span>

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<pre style="margin: 0;"> <span id="LC27" class="line" lang="c"><span class="p">{</span></span>

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<td class="diff-line-num new old_line" data-linenumber="28" 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="LC28" class="line" lang="c">    <span class="c1" style="color: #998; font-style: italic;">// The message better be locked</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="28" 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="LC29" class="line" lang="c">    <span class="n" style="color: #333;">ASSERT</span><span class="p">(</span><span class="n" style="color: #333;">m</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">header</span><span class="p">.</span><span class="n" style="color: #333;">info</span> <span class="o" style="font-weight: 600;">==</span> <span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">stg_WHITEHOLE_info</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="28" 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="LC30" class="line" lang="c">    <span class="n" style="color: #333;">IF_NONMOVING_WRITE_BARRIER_ENABLED</span> <span class="p">{</span></span>

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<td class="diff-line-num new old_line" data-linenumber="28" 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="LC31" class="line" lang="c">      <span class="n" style="color: #333;">updateRemembSetPushClosure</span><span class="p">(</span><span class="n" style="color: #333;">cap</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">StgClosure</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">m</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">link</span><span class="p">);</span></span>

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<pre style="margin: 0;">+<span id="LC32" class="line" lang="c">      <span class="n" style="color: #333;">updateRemembSetPushClosure</span><span class="p">(</span><span class="n" style="color: #333;">cap</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">StgClosure</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">m</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">source</span><span class="p">);</span></span>

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<pre style="margin: 0;">+<span id="LC33" class="line" lang="c">      <span class="n" style="color: #333;">updateRemembSetPushClosure</span><span class="p">(</span><span class="n" style="color: #333;">cap</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">StgClosure</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">m</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">target</span><span class="p">);</span></span>

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<pre style="margin: 0;">+<span id="LC34" class="line" lang="c">      <span class="n" style="color: #333;">updateRemembSetPushClosure</span><span class="p">(</span><span class="n" style="color: #333;">cap</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">StgClosure</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">m</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">exception</span><span class="p">);</span></span>

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<pre style="margin: 0;">+<span id="LC35" class="line" lang="c">    <span class="p">}</span></span>

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<pre style="margin: 0;"> <span id="LC36" class="line" lang="c">    <span class="n" style="color: #333;">OVERWRITING_CLOSURE</span><span class="p">((</span><span class="n" style="color: #333;">StgClosure</span><span class="o" style="font-weight: 600;">*</span><span class="p">)</span><span class="n" style="color: #333;">m</span><span class="p">);</span></span>

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<pre style="margin: 0;"> <span id="LC37" class="line" lang="c">    <span class="n" style="color: #333;">unlockClosure</span><span class="p">((</span><span class="n" style="color: #333;">StgClosure</span><span class="o" style="font-weight: 600;">*</span><span class="p">)</span><span class="n" style="color: #333;">m</span><span class="p">,</span> <span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">stg_MSG_NULL_info</span><span class="p">);</span></span>

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<pre style="margin: 0;"> <span id="LC38" class="line" lang="c">    <span class="n" style="color: #333;">LDV_RECORD_CREATE</span><span class="p">(</span><span class="n" style="color: #333;">m</span><span class="p">);</span></span>

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<br>

</li>

<li id="6db965f97cbab901f493506a385bcf1283009921">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/1bc104b029b4f043cac42253ee2387f4d574abca...3aa603620ef5a6aae1778278aa9914f344ab526e#6db965f97cbab901f493506a385bcf1283009921"><strong>rts/PrimOps.cmm</strong></a>

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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="227" 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">@@ -227,6 +227,21 @@ stg_shrinkSmallMutableArrayzh ( gcptr mba, W_ new_size )</td>

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<pre style="margin: 0;"> <span id="LC227" class="line" lang="ghc-cmm"><span class="p">{</span></span>

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<pre style="margin: 0;"> <span id="LC228" class="line" lang="ghc-cmm">   <span class="nf" style="color: #900; font-weight: 600;">ASSERT</span><span class="p">(</span><span class="nl">new_size</span> <span class="o" style="font-weight: 600;"><=</span> <span class="nf" style="color: #900; font-weight: 600;">StgSmallMutArrPtrs_ptrs</span><span class="p">(</span><span class="nl">mba</span><span class="p">));</span></span>

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<pre style="margin: 0;"> <span id="LC229" class="line" lang="ghc-cmm"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC230" class="line" lang="ghc-cmm">   <span class="nf" style="color: #900; font-weight: 600;">IF_NONMOVING_WRITE_BARRIER_ENABLED</span> <span class="p">{</span></span>

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<pre style="margin: 0;">+<span id="LC231" class="line" lang="ghc-cmm">     <span class="c1" style="color: #998; font-style: italic;">// Ensure that the elements we are about to shrink out of existence</span></span>

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<pre style="margin: 0;">+<span id="LC232" class="line" lang="ghc-cmm">     <span class="c1" style="color: #998; font-style: italic;">// remain visible to the non-moving collector.</span></span>

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<pre style="margin: 0;">+<span id="LC233" class="line" lang="ghc-cmm">     <span class="kt" style="color: #458; font-weight: 600;">W_</span> <span class="nl">p</span><span class="p">,</span> <span class="nl">end</span><span class="p">;</span></span>

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<pre style="margin: 0;">+<span id="LC234" class="line" lang="ghc-cmm">     <span class="nl">p</span> <span class="o" style="font-weight: 600;">=</span> <span class="nl">mba</span> <span class="o" style="font-weight: 600;">+</span> <span class="nl">SIZEOF_StgSmallMutArrPtrs</span> <span class="o" style="font-weight: 600;">+</span> <span class="nf" style="color: #900; font-weight: 600;">WDS</span><span class="p">(</span><span class="nl">new_size</span><span class="p">);</span></span>

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<pre style="margin: 0;">+<span id="LC235" class="line" lang="ghc-cmm">     <span class="nl">end</span> <span class="o" style="font-weight: 600;">=</span> <span class="nl">mba</span> <span class="o" style="font-weight: 600;">+</span> <span class="nl">SIZEOF_StgSmallMutArrPtrs</span> <span class="o" style="font-weight: 600;">+</span> <span class="nf" style="color: #900; font-weight: 600;">WDS</span><span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">StgSmallMutArrPtrs_ptrs</span><span class="p">(</span><span class="nl">mba</span><span class="p">));</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC236" class="line" lang="ghc-cmm"><span class="nl">again</span><span class="p">:</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC237" class="line" lang="ghc-cmm">     <span class="k" style="font-weight: 600;">ccall</span> <span class="nf" style="color: #900; font-weight: 600;">updateRemembSetPushClosure_</span><span class="p">(</span><span class="vg" style="color: #008080;">BaseReg</span> <span class="dl">"</span><span class="s" style="color: #d14;">ptr</span><span class="dl">"</span><span class="p">,</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="238" 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="LC238" class="line" lang="ghc-cmm">                                       <span class="kt" style="color: #458; font-weight: 600;">W_</span><span class="p">[</span><span class="nl">p</span><span class="p">]</span> <span class="dl">"</span><span class="s" style="color: #d14;">ptr</span><span class="dl">"</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="239" 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="LC239" class="line" lang="ghc-cmm">     <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="nl">p</span> <span class="o" style="font-weight: 600;"><</span> <span class="nl">end</span><span class="p">)</span> <span class="p">{</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC240" class="line" lang="ghc-cmm">       <span class="nl">p</span> <span class="o" style="font-weight: 600;">=</span> <span class="nl">p</span> <span class="o" style="font-weight: 600;">+</span> <span class="nl">SIZEOF_W</span><span class="p">;</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC241" class="line" lang="ghc-cmm">       <span class="k" style="font-weight: 600;">goto</span> <span class="nl">again</span><span class="p">;</span></span>

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<pre style="margin: 0;">+<span id="LC242" class="line" lang="ghc-cmm">     <span class="p">}</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC243" class="line" lang="ghc-cmm">   <span class="p">}</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC244" class="line" lang="ghc-cmm"></span>

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<pre style="margin: 0;"> <span id="LC245" class="line" lang="ghc-cmm">   <span class="nf" style="color: #900; font-weight: 600;">OVERWRITING_CLOSURE_MUTABLE</span><span class="p">(</span><span class="nl">mba</span><span class="p">,</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">BYTES_TO_WDS</span><span class="p">(</span><span class="nl">SIZEOF_StgSmallMutArrPtrs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">+</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC246" class="line" lang="ghc-cmm">                                     <span class="nl">new_size</span><span class="p">));</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC247" class="line" lang="ghc-cmm">   <span class="nf" style="color: #900; font-weight: 600;">StgSmallMutArrPtrs_ptrs</span><span class="p">(</span><span class="nl">mba</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="nl">new_size</span><span class="p">;</span></span>

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<br>

</li>

<li id="515f190a948b1d6c490c96f75a3f909580e927b0">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/1bc104b029b4f043cac42253ee2387f4d574abca...3aa603620ef5a6aae1778278aa9914f344ab526e#515f190a948b1d6c490c96f75a3f909580e927b0"><strong>rts/RaiseAsync.c</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">@@ -336,7 +336,7 @@ check_target:</td>

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<td class="diff-line-num old_line" data-linenumber="336" 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">

336

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336

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<pre style="margin: 0;"> <span id="LC336" class="line" lang="c">        <span class="p">}</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="337" 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">

337

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<td class="diff-line-num new_line" data-linenumber="337" 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">

337

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<pre style="margin: 0;"> <span id="LC337" class="line" lang="c"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="338" 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">

338

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<td class="diff-line-num new_line" data-linenumber="338" 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">

338

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<pre style="margin: 0;"> <span id="LC338" class="line" lang="c">        <span class="c1" style="color: #998; font-style: italic;">// nobody else can wake up this TSO after we claim the message</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="339" 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">

339

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<td class="diff-line-num new_line old" data-linenumber="339" 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="LC339" class="line" lang="c">        <span class="n" style="color: #333;">doneWithMsgThrowTo</span><span class="p">(</span><span class="n" style="color: #333;">m</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="340" 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="339" 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">

339

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<pre style="margin: 0;">+<span id="LC339" class="line" lang="c">        <span class="n" style="color: #333;">doneWithMsgThrowTo</span><span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">cap</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">m</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="340" 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">

340

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<td class="diff-line-num new_line" data-linenumber="340" 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">

340

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<pre style="margin: 0;"> <span id="LC340" class="line" lang="c"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="341" 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">

341

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<td class="diff-line-num new_line" data-linenumber="341" 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">

341

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<pre style="margin: 0;"> <span id="LC341" class="line" lang="c">        <span class="n" style="color: #333;">raiseAsync</span><span class="p">(</span><span class="n" style="color: #333;">cap</span><span class="p">,</span> <span class="n" style="color: #333;">target</span><span class="p">,</span> <span class="n" style="color: #333;">msg</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">exception</span><span class="p">,</span> <span class="nb" style="color: #0086b3;">false</span><span class="p">,</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="342" 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">

342

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<td class="diff-line-num new_line" data-linenumber="342" 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">

342

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<pre style="margin: 0;"> <span id="LC342" class="line" lang="c">        <span class="k" style="font-weight: 600;">return</span> <span class="n" style="color: #333;">THROWTO_SUCCESS</span><span class="p">;</span></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="580" 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="580" 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">@@ -580,7 +580,7 @@ maybePerformBlockedException (Capability *cap, StgTSO *tso)</td>

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<td class="diff-line-num old_line" data-linenumber="580" 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">

580

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<td class="diff-line-num new_line" data-linenumber="580" 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">

580

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<pre style="margin: 0;"> <span id="LC580" class="line" lang="c"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="581" 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">

581

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<td class="diff-line-num new_line" data-linenumber="581" 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">

581

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<pre style="margin: 0;"> <span id="LC581" class="line" lang="c">        <span class="n" style="color: #333;">throwToSingleThreaded</span><span class="p">(</span><span class="n" style="color: #333;">cap</span><span class="p">,</span> <span class="n" style="color: #333;">msg</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">target</span><span class="p">,</span> <span class="n" style="color: #333;">msg</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">exception</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="582" 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">

582

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<td class="diff-line-num new_line" data-linenumber="582" 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">

582

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<pre style="margin: 0;"> <span id="LC582" class="line" lang="c">        <span class="n" style="color: #333;">source</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">msg</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">source</span><span class="p">;</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="583" 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">

583

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<td class="diff-line-num new_line old" data-linenumber="583" 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="LC583" class="line" lang="c">        <span class="n" style="color: #333;">doneWithMsgThrowTo</span><span class="p">(</span><span class="n" style="color: #333;">msg</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="584" 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="583" 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">

583

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<pre style="margin: 0;">+<span id="LC583" class="line" lang="c">        <span class="n" style="color: #333;">doneWithMsgThrowTo</span><span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">cap</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">msg</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="584" 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">

584

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<td class="diff-line-num new_line" data-linenumber="584" 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">

584

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<pre style="margin: 0;"> <span id="LC584" class="line" lang="c">        <span class="n" style="color: #333;">tryWakeupThread</span><span class="p">(</span><span class="n" style="color: #333;">cap</span><span class="p">,</span> <span class="n" style="color: #333;">source</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="585" 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">

585

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<td class="diff-line-num new_line" data-linenumber="585" 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">

585

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<pre style="margin: 0;"> <span id="LC585" class="line" lang="c">        <span class="k" style="font-weight: 600;">return</span> <span class="mi" style="color: #099;">1</span><span class="p">;</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="586" 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">

586

</td>

<td class="diff-line-num new_line" data-linenumber="586" 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">

586

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<pre style="margin: 0;"> <span id="LC586" class="line" lang="c">    <span class="p">}</span></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="602" 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="602" 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">@@ -602,7 +602,7 @@ awakenBlockedExceptionQueue (Capability *cap, StgTSO *tso)</td>

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<td class="diff-line-num old_line" data-linenumber="602" 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">

602

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<td class="diff-line-num new_line" data-linenumber="602" 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">

602

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<pre style="margin: 0;"> <span id="LC602" class="line" lang="c">        <span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lockClosure</span><span class="p">((</span><span class="n" style="color: #333;">StgClosure</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span><span class="n" style="color: #333;">msg</span><span class="p">);</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC603" class="line" lang="c">        <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">!=</span> <span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">stg_MSG_NULL_info</span><span class="p">)</span> <span class="p">{</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="604" 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="LC604" class="line" lang="c">            <span class="n" style="color: #333;">source</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">msg</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">source</span><span class="p">;</span></span>

</pre>

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<td class="diff-line-num new_line old" data-linenumber="605" 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="LC605" class="line" lang="c">            <span class="n" style="color: #333;">doneWithMsgThrowTo</span><span class="p">(</span><span class="n" style="color: #333;">msg</span><span class="p">);</span></span>

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<td class="diff-line-num new old_line" data-linenumber="606" 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="605" 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="LC605" class="line" lang="c">            <span class="n" style="color: #333;">doneWithMsgThrowTo</span><span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">cap</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">msg</span><span class="p">);</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC606" class="line" lang="c">            <span class="n" style="color: #333;">tryWakeupThread</span><span class="p">(</span><span class="n" style="color: #333;">cap</span><span class="p">,</span> <span class="n" style="color: #333;">source</span><span class="p">);</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC607" class="line" lang="c">        <span class="p">}</span> <span class="k" style="font-weight: 600;">else</span> <span class="p">{</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC608" class="line" lang="c">            <span class="n" style="color: #333;">unlockClosure</span><span class="p">((</span><span class="n" style="color: #333;">StgClosure</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span><span class="n" style="color: #333;">msg</span><span class="p">,</span><span class="n" style="color: #333;">i</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="700" 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="700" 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">@@ -700,7 +700,7 @@ removeFromQueues(Capability *cap, StgTSO *tso)</td>

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<pre style="margin: 0;"> <span id="LC700" class="line" lang="c">      <span class="c1" style="color: #998; font-style: italic;">// ASSERT(m->header.info == &stg_WHITEHOLE_info);</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC701" class="line" lang="c"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC702" class="line" lang="c">      <span class="c1" style="color: #998; font-style: italic;">// unlock and revoke it at the same time</span></span>

</pre>

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<td class="diff-line-num new_line old" data-linenumber="703" 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="LC703" class="line" lang="c">      <span class="n" style="color: #333;">doneWithMsgThrowTo</span><span class="p">(</span><span class="n" style="color: #333;">m</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="704" 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="LC703" class="line" lang="c">      <span class="n" style="color: #333;">doneWithMsgThrowTo</span><span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">cap</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">m</span><span class="p">);</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC704" class="line" lang="c">      <span class="k" style="font-weight: 600;">break</span><span class="p">;</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="705" 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="LC705" class="line" lang="c">  <span class="p">}</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="706" 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="706" 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="LC706" class="line" lang="c"></span>

</pre>

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<br>

</li>

<li id="4b22b3f666af23f7c8097b32282abfd52fb6c342">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/1bc104b029b4f043cac42253ee2387f4d574abca...3aa603620ef5a6aae1778278aa9914f344ab526e#4b22b3f666af23f7c8097b32282abfd52fb6c342"><strong>rts/ThreadPaused.c</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="314" 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="314" 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">@@ -314,10 +314,6 @@ threadPaused(Capability *cap, StgTSO *tso)</td>

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<pre style="margin: 0;"> <span id="LC314" class="line" lang="c">                <span class="k" style="font-weight: 600;">continue</span><span class="p">;</span></span>

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<pre style="margin: 0;"> <span id="LC315" class="line" lang="c">            <span class="p">}</span></span>

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<pre style="margin: 0;"> <span id="LC316" class="line" lang="c"></span>

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<pre style="margin: 0;">-<span id="LC317" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">// zero out the slop so that the sanity checker can tell</span></span>

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<pre style="margin: 0;">-<span id="LC318" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">// where the next closure is.</span></span>

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<pre style="margin: 0;">-<span id="LC319" class="line" lang="c">            <span class="n" style="color: #333;">OVERWRITING_CLOSURE</span><span class="p">(</span><span class="n" style="color: #333;">bh</span><span class="p">);</span></span>

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<pre style="margin: 0;">-<span id="LC320" class="line" lang="c"></span>

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<pre style="margin: 0;"> <span id="LC317" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">// an EAGER_BLACKHOLE or CAF_BLACKHOLE gets turned into a</span></span>

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<pre style="margin: 0;"> <span id="LC318" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">// BLACKHOLE here.</span></span>

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<pre style="margin: 0;"> <span id="LC319" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if defined(THREADED_RTS)</span></span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="345" 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="341" 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">@@ -345,11 +341,16 @@ threadPaused(Capability *cap, StgTSO *tso)</td>

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<pre style="margin: 0;"> <span id="LC341" class="line" lang="c">                    <span class="c1" style="color: #998; font-style: italic;">// overwrite to the update remembered set.</span></span>

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<pre style="margin: 0;"> <span id="LC342" class="line" lang="c">                    <span class="c1" style="color: #998; font-style: italic;">// N.B. We caught the WHITEHOLE case above.</span></span>

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<pre style="margin: 0;"> <span id="LC343" class="line" lang="c">                    <span class="n" style="color: #333;">updateRemembSetPushThunkEager</span><span class="p">(</span><span class="n" style="color: #333;">cap</span><span class="p">,</span></span>

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<pre style="margin: 0;">-<span id="LC348" class="line" lang="c">                                                 <span class="n" style="color: #333;">THUNK_INFO_PTR_TO_STRUCT</span><span class="p">(</span><span class="n" style="color: #333;">bh_info</span><span class="p">),</span></span>

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<pre style="margin: 0;">-<span id="LC349" class="line" lang="c">                                                 <span class="p">(</span><span class="n" style="color: #333;">StgThunk</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">bh</span><span class="p">);</span></span>

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<pre style="margin: 0;">+<span id="LC344" class="line" lang="c">                                                 <span class="idiff left right"> </span><span class="n" style="color: #333;">THUNK_INFO_PTR_TO_STRUCT</span><span class="p">(</span><span class="n" style="color: #333;">bh_info</span><span class="p">),</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC345" class="line" lang="c">                                                 <span class="idiff left right"> </span><span class="p">(</span><span class="n" style="color: #333;">StgThunk</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">bh</span><span class="p">);</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC346" class="line" lang="c">                <span class="p">}</span></span>

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<pre style="margin: 0;"> <span id="LC347" class="line" lang="c">            <span class="p">}</span></span>

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<pre style="margin: 0;"> <span id="LC348" class="line" lang="c"></span>

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<pre style="margin: 0;">+<span id="LC349" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">// zero out the slop so that the sanity checker can tell</span></span>

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<pre style="margin: 0;">+<span id="LC350" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">// where the next closure is. N.B. We mustn't do this until we have</span></span>

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<pre style="margin: 0;">+<span id="LC351" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">// pushed the free variables to the update remembered set above.</span></span>

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<pre style="margin: 0;">+<span id="LC352" class="line" lang="c">            <span class="n" style="color: #333;">OVERWRITING_CLOSURE_SIZE</span><span class="p">(</span><span class="n" style="color: #333;">bh</span><span class="p">,</span> <span class="n" style="color: #333;">closure_sizeW_</span><span class="p">(</span><span class="n" style="color: #333;">bh</span><span class="p">,</span> <span class="n" style="color: #333;">INFO_PTR_TO_STRUCT</span><span class="p">(</span><span class="n" style="color: #333;">bh_info</span><span class="p">)));</span></span>

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<pre style="margin: 0;">+<span id="LC353" class="line" lang="c"></span>

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<pre style="margin: 0;"> <span id="LC354" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">// The payload of the BLACKHOLE points to the TSO</span></span>

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<pre style="margin: 0;"> <span id="LC355" class="line" lang="c">            <span class="n" style="color: #333;">RELAXED_STORE</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="p">((</span><span class="n" style="color: #333;">StgInd</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span><span class="n" style="color: #333;">bh</span><span class="p">)</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">indirectee</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">StgClosure</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span><span class="n" style="color: #333;">tso</span><span class="p">);</span></span>

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<pre style="margin: 0;"> <span id="LC356" class="line" lang="c">            <span class="n" style="color: #333;">SET_INFO_RELEASE</span><span class="p">(</span><span class="n" style="color: #333;">bh</span><span class="p">,</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">stg_BLACKHOLE_info</span><span class="p">);</span></span>

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<br>

</li>

<li id="2ffbdc61d9d0e36978f07f62c00c08f33149e335">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/1bc104b029b4f043cac42253ee2387f4d574abca...3aa603620ef5a6aae1778278aa9914f344ab526e#2ffbdc61d9d0e36978f07f62c00c08f33149e335"><strong>rts/Updates.h</strong></a>

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<pre style="margin: 0;"> <span id="LC49" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    W_ bd;                                                      \</span></span>

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<pre style="margin: 0;"> <span id="LC50" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">                                                                \</span></span>

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<pre style="margin: 0;"> <span id="LC51" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    prim_write_barrier;                                         \</span></span>

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<pre style="margin: 0;">-<span id="LC52" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    OVERWRITING_CLOSURE(p1);                                    \</span></span>

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<pre style="margin: 0;"> <span id="LC52" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    bd = Bdescr(p1);                                            \</span></span>

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<pre style="margin: 0;"> <span id="LC53" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    if (bdescr_gen_no(bd) != 0 :: bits16) {                     \</span></span>

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<pre style="margin: 0;"> <span id="LC54" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">      IF_NONMOVING_WRITE_BARRIER_ENABLED {                      \</span></span>

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<pre style="margin: 0;"> <span id="LC59" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    } else {                                                    \</span></span>

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<pre style="margin: 0;"> <span id="LC60" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">      TICK_UPD_NEW_IND();                                       \</span></span>

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<pre style="margin: 0;"> <span id="LC61" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    }                                                           \</span></span>

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<td class="diff-line-num new new_line" data-linenumber="62" 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">

62

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<pre style="margin: 0;">+<span id="LC62" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    OVERWRITING_CLOSURE(p1);                                    \</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="63" 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">

63

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<td class="diff-line-num new_line" data-linenumber="63" 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">

63

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<pre style="margin: 0;"> <span id="LC63" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    StgInd_indirectee(p1) = p2;                                 \</span></span>

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<td class="diff-line-num old_line" data-linenumber="64" 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">

64

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64

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<pre style="margin: 0;"> <span id="LC64" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    prim_write_barrier;                                         \</span></span>

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<td class="diff-line-num old_line" data-linenumber="65" 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">

65

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<td class="diff-line-num new_line" data-linenumber="65" 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="LC65" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">    SET_INFO(p1, stg_BLACKHOLE_info);                           \</span></span>

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<li id="cc73d9e9eaa9bba27d82a52a4c9ad6e125643836">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/1bc104b029b4f043cac42253ee2387f4d574abca...3aa603620ef5a6aae1778278aa9914f344ab526e#cc73d9e9eaa9bba27d82a52a4c9ad6e125643836"><strong>rts/posix/OSThreads.c</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="401" 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="401" 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">@@ -401,8 +401,9 @@ interruptOSThread (OSThreadId id)</td>

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<td class="diff-line-num old_line" data-linenumber="401" 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">

401

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<pre style="margin: 0;"> <span id="LC401" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span></span>

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402

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<pre style="margin: 0;"> <span id="LC402" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">joinOSThread</span> <span class="p">(</span><span class="n" style="color: #333;">OSThreadId</span> <span class="n" style="color: #333;">id</span><span class="p">)</span></span>

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403

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<pre style="margin: 0;"> <span id="LC403" class="line" lang="c"><span class="p">{</span></span>

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<td class="diff-line-num old old_line" data-linenumber="404" 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="404" 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="LC404" class="line" lang="c">    <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">pthread_join</span><span class="p">(</span><span class="n" style="color: #333;">id</span><span class="p">,</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span> <span class="o" style="font-weight: 600;">!=</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="p">{</span></span>

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<pre style="margin: 0;">-<span id="LC405" class="line" lang="c">        <span class="n" style="color: #333;">sysErrorBelch</span><span class="p">(</span><span class="s" style="color: #d14;">"joinOSThread: error %d"</span><span class="p">,</span> <span class="n" style="color: #333;">errno</span><span class="p">);</span></span>

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<td class="diff-line-num new old_line" data-linenumber="406" 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="LC404" class="line" lang="c">    <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">ret</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pthread_join</span><span class="p">(</span><span class="n" style="color: #333;">id</span><span class="p">,</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="406" 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="405" 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="LC405" class="line" lang="c">    <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">ret</span> <span class="o" style="font-weight: 600;">!=</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="p">{</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="406" 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="406" 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="LC406" class="line" lang="c">        <span class="n" style="color: #333;">sysErrorBelch</span><span class="p">(</span><span class="s" style="color: #d14;">"joinOSThread: error %d"</span><span class="p">,</span> <span class="n" style="color: #333;">ret</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="407" 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="LC407" class="line" lang="c">    <span class="p">}</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="407" 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="408" 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="LC408" class="line" lang="c"><span class="p">}</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="408" 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">

408

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<td class="diff-line-num new_line" data-linenumber="409" 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">

409

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<pre style="margin: 0;"> <span id="LC409" class="line" lang="c"></span>

</pre>

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</li>

<li id="37a93df244a7789fddf557443b6398d06763e9cc">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/1bc104b029b4f043cac42253ee2387f4d574abca...3aa603620ef5a6aae1778278aa9914f344ab526e#37a93df244a7789fddf557443b6398d06763e9cc"><strong>rts/sm/Evac.c</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="109" 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="109" 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">@@ -109,6 +109,8 @@ alloc_for_copy (uint32_t size, uint32_t gen_no)</td>

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109

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<td class="diff-line-num new_line" data-linenumber="109" 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="LC109" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">//</span></span>

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<pre style="margin: 0;"> <span id="LC110" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">// However, if we are in a deadlock detection GC then we disable aging</span></span>

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<pre style="margin: 0;"> <span id="LC111" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">// so there is no need.</span></span>

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<pre style="margin: 0;">+<span id="LC112" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">//</span></span>

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<pre style="margin: 0;">+<span id="LC113" class="line" lang="c">            <span class="c1" style="color: #998; font-style: italic;">// See Note [Non-moving GC: Marking evacuated objects].</span></span>

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<pre style="margin: 0;"> <span id="LC114" class="line" lang="c">            <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">major_gc</span> <span class="o" style="font-weight: 600;">&&</span> <span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">deadlock_detect_gc</span><span class="p">)</span></span>

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<pre style="margin: 0;"> <span id="LC115" class="line" lang="c">                <span class="n" style="color: #333;">markQueuePushClosureGC</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">gct</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">cap</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">upd_rem_set</span><span class="p">.</span><span class="n" style="color: #333;">queue</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">StgClosure</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">to</span><span class="p">);</span></span>

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<pre style="margin: 0;"> <span id="LC116" class="line" lang="c">            <span class="k" style="font-weight: 600;">return</span> <span class="n" style="color: #333;">to</span><span class="p">;</span></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">@@ -134,6 +136,52 @@ alloc_for_copy (uint32_t size, uint32_t gen_no)</td>

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<pre style="margin: 0;"> <span id="LC136" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">   The evacuate() code</span></span>

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<pre style="margin: 0;"> <span id="LC137" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">   -------------------------------------------------------------------------- */</span></span>

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<pre style="margin: 0;"> <span id="LC138" class="line" lang="c"></span>

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<pre style="margin: 0;">+<span id="LC139" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">/*</span></span>

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<pre style="margin: 0;">+<span id="LC140" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Note [Non-moving GC: Marking evacuated objects]</span></span>

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<pre style="margin: 0;">+<span id="LC141" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>

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<pre style="margin: 0;">+<span id="LC142" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

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<pre style="margin: 0;">+<span id="LC143" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * When the non-moving collector is in use we must be careful to ensure that any</span></span>

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<pre style="margin: 0;">+<span id="LC144" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * references to objects in the non-moving generation from younger generations</span></span>

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<pre style="margin: 0;">+<span id="LC145" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * are pushed to the mark queue.</span></span>

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<pre style="margin: 0;">+<span id="LC146" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

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<pre style="margin: 0;">+<span id="LC147" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * In particular we need to ensure that we handle newly-promoted objects are</span></span>

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<pre style="margin: 0;">+<span id="LC148" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * correctly marked. For instance, consider this case:</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="149" 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">

149

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<pre style="margin: 0;">+<span id="LC149" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="150" 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="LC150" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *     generation 0                          generation 1</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="151" 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">

151

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<pre style="margin: 0;">+<span id="LC151" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *    ──────────────                        ──────────────</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="152" 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">

152

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<pre style="margin: 0;">+<span id="LC152" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="153" 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">

153

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<pre style="margin: 0;">+<span id="LC153" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *                                            ┌───────┐</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="154" 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">

154

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<pre style="margin: 0;">+<span id="LC154" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *      ┌───────┐                             │   A   │</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="155" 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">

155

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<pre style="margin: 0;">+<span id="LC155" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *      │   B   │ ◁────────────────────────── │       │</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="156" 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">

156

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<pre style="margin: 0;">+<span id="LC156" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *      │       │ ──┬─────────────────┐       └───────┘</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="157" 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">

157

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<pre style="margin: 0;">+<span id="LC157" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *      └───────┘   ┆        after GC │</span></span>

</pre>

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158

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<pre style="margin: 0;">+<span id="LC158" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *                  ┆                 │</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="159" 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="LC159" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *      ┌───────┐   ┆ before GC       │       ┌───────┐</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="160" 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="LC160" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *      │   C   │ ◁┄┘                 └─────▷ │   C'  │</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="161" 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="LC161" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *      │       │                             │       │</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="162" 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="LC162" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *      └───────┘                             └───────┘</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="163" 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="LC163" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="164" 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="LC164" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="165" 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="LC165" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * In this case object C started off in generation 0 and was evacuated into</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="166" 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="LC166" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * generation 1 during the preparatory GC. However, the only reference to C'</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC167" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * is from B, which lives in the generation 0 (via aging); this reference will</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="168" 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="LC168" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * not be visible to the concurrent non-moving collector (which can only</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="169" 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">

169

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<pre style="margin: 0;">+<span id="LC169" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * traverse the generation 1 heap). Consequently, upon evacuating C we need to</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="170" 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">

170

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<pre style="margin: 0;">+<span id="LC170" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * ensure that C' is added to the update remembered set as we know that it will</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="171" 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">

171

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<pre style="margin: 0;">+<span id="LC171" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * continue to be reachable via B (which is assumed to be reachable as it lives</span></span>

</pre>

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172

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<pre style="margin: 0;">+<span id="LC172" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * in a younger generation).</span></span>

</pre>

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173

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<pre style="margin: 0;">+<span id="LC173" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

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<pre style="margin: 0;">+<span id="LC174" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Where this happens depends upon the type of the object (e.g. C'):</span></span>

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<td class="diff-line-num new new_line" data-linenumber="175" 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">

175

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<pre style="margin: 0;">+<span id="LC175" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="176" 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="LC176" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *  - In the case of "normal" small heap-allocated objects this happens in</span></span>

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<td class="diff-line-num new new_line" data-linenumber="177" 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="LC177" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *    alloc_for_copy.</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="178" 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="LC178" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *  - In the case of compact region this happens in evacuate_compact.</span></span>

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<td class="diff-line-num new new_line" data-linenumber="179" 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="LC179" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *  - In the case of large objects this happens in evacuate_large.</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="180" 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="LC180" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="181" 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="LC181" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * See also Note [Aging under the non-moving collector] in NonMoving.c.</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="182" 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="LC182" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="183" 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="LC183" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> */</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC184" class="line" lang="c"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC185" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">/* size is in words</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC186" class="line" lang="c"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC187" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">   We want to *always* inline this as often the size of the closure is static,</span></span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="356" 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="404" 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">@@ -356,6 +404,9 @@ evacuate_large(StgPtr p)</td>

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<pre style="margin: 0;"> <span id="LC404" class="line" lang="c">  <span class="n" style="color: #333;">__atomic_fetch_or</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">bd</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">flags</span><span class="p">,</span> <span class="n" style="color: #333;">BF_EVACUATED</span><span class="p">,</span> <span class="n" style="color: #333;">__ATOMIC_ACQ_REL</span><span class="p">);</span></span>

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<td class="diff-line-num new_line" data-linenumber="405" 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="LC405" class="line" lang="c">  <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">RTS_UNLIKELY</span><span class="p">(</span><span class="n" style="color: #333;">RtsFlags</span><span class="p">.</span><span class="n" style="color: #333;">GcFlags</span><span class="p">.</span><span class="n" style="color: #333;">useNonmoving</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">new_gen</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">oldest_gen</span><span class="p">))</span> <span class="p">{</span></span>

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<td class="diff-line-num new_line" data-linenumber="406" 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="LC406" class="line" lang="c">      <span class="n" style="color: #333;">__atomic_fetch_or</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">bd</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">flags</span><span class="p">,</span> <span class="n" style="color: #333;">BF_NONMOVING</span><span class="p">,</span> <span class="n" style="color: #333;">__ATOMIC_ACQ_REL</span><span class="p">);</span></span>

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<td class="diff-line-num new old_line" data-linenumber="359" 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="407" 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="LC407" class="line" lang="c"></span>

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<td class="diff-line-num new new_line" data-linenumber="408" 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="LC408" class="line" lang="c">      <span class="c1" style="color: #998; font-style: italic;">// See Note [Non-moving GC: Marking evacuated objects].</span></span>

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<td class="diff-line-num new new_line" data-linenumber="409" 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="LC409" class="line" lang="c">      <span class="n" style="color: #333;">markQueuePushClosureGC</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">gct</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">cap</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">upd_rem_set</span><span class="p">.</span><span class="n" style="color: #333;">queue</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">StgClosure</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">p</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="410" 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="LC410" class="line" lang="c">  <span class="p">}</span></span>

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<td class="diff-line-num old_line" data-linenumber="360" 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="LC411" class="line" lang="c">  <span class="n" style="color: #333;">initBdescr</span><span class="p">(</span><span class="n" style="color: #333;">bd</span><span class="p">,</span> <span class="n" style="color: #333;">new_gen</span><span class="p">,</span> <span class="n" style="color: #333;">new_gen</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">to</span><span class="p">);</span></span>

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<td class="diff-line-num new_line" data-linenumber="412" 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">

412

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<pre style="margin: 0;"> <span id="LC412" class="line" lang="c"></span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="510" 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="561" 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">@@ -510,6 +561,9 @@ evacuate_compact (StgPtr p)</td>

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<td class="diff-line-num old_line" data-linenumber="510" 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">

510

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<pre style="margin: 0;"> <span id="LC561" class="line" lang="c">    <span class="n" style="color: #333;">bd</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">flags</span> <span class="o" style="font-weight: 600;">|=</span> <span class="n" style="color: #333;">BF_EVACUATED</span><span class="p">;</span></span>

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<td class="diff-line-num new_line" data-linenumber="562" 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="LC562" class="line" lang="c">    <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">RTS_UNLIKELY</span><span class="p">(</span><span class="n" style="color: #333;">RtsFlags</span><span class="p">.</span><span class="n" style="color: #333;">GcFlags</span><span class="p">.</span><span class="n" style="color: #333;">useNonmoving</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">new_gen</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">oldest_gen</span><span class="p">))</span> <span class="p">{</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="512" 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">

512

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<td class="diff-line-num new_line" data-linenumber="563" 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="LC563" class="line" lang="c">      <span class="n" style="color: #333;">__atomic_fetch_or</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">bd</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">flags</span><span class="p">,</span> <span class="n" style="color: #333;">BF_NONMOVING</span><span class="p">,</span> <span class="n" style="color: #333;">__ATOMIC_RELAXED</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="513" 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="564" 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="LC564" class="line" lang="c"></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="513" 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="565" 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="LC565" class="line" lang="c">      <span class="c1" style="color: #998; font-style: italic;">// See Note [Non-moving GC: Marking evacuated objects].</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC566" class="line" lang="c">      <span class="n" style="color: #333;">markQueuePushClosureGC</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">gct</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">cap</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">upd_rem_set</span><span class="p">.</span><span class="n" style="color: #333;">queue</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">StgClosure</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">str</span><span class="p">);</span></span>

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<pre style="margin: 0;"> <span id="LC567" class="line" lang="c">    <span class="p">}</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="514" 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="LC568" class="line" lang="c">    <span class="n" style="color: #333;">initBdescr</span><span class="p">(</span><span class="n" style="color: #333;">bd</span><span class="p">,</span> <span class="n" style="color: #333;">new_gen</span><span class="p">,</span> <span class="n" style="color: #333;">new_gen</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">to</span><span class="p">);</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC569" class="line" lang="c"></span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="695" 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="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">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -695,13 +749,6 @@ loop:</td>

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<pre style="margin: 0;"> <span id="LC749" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">       */</span></span>

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<pre style="margin: 0;"> <span id="LC750" class="line" lang="c">      <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">flags</span> <span class="o" style="font-weight: 600;">&</span> <span class="n" style="color: #333;">BF_LARGE</span><span class="p">)</span> <span class="p">{</span></span>

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<pre style="margin: 0;"> <span id="LC751" class="line" lang="c">          <span class="n" style="color: #333;">evacuate_large</span><span class="p">((</span><span class="n" style="color: #333;">P_</span><span class="p">)</span><span class="n" style="color: #333;">q</span><span class="p">);</span></span>

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<pre style="margin: 0;">-<span id="LC698" class="line" lang="c"></span>

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<pre style="margin: 0;">-<span id="LC699" class="line" lang="c">          <span class="c1" style="color: #998; font-style: italic;">// We may have evacuated the block to the nonmoving generation. If so</span></span>

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<pre style="margin: 0;">-<span id="LC700" class="line" lang="c">          <span class="c1" style="color: #998; font-style: italic;">// we need to make sure it is added to the mark queue since the only</span></span>

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<pre style="margin: 0;">-<span id="LC701" class="line" lang="c">          <span class="c1" style="color: #998; font-style: italic;">// reference to it may be from the moving heap.</span></span>

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<pre style="margin: 0;">-<span id="LC702" class="line" lang="c">          <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">major_gc</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">flags</span> <span class="o" style="font-weight: 600;">&</span> <span class="n" style="color: #333;">BF_NONMOVING</span> <span class="o" style="font-weight: 600;">&&</span> <span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">deadlock_detect_gc</span><span class="p">)</span> <span class="p">{</span></span>

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<pre style="margin: 0;">-<span id="LC703" class="line" lang="c">              <span class="n" style="color: #333;">markQueuePushClosureGC</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">gct</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">cap</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">upd_rem_set</span><span class="p">.</span><span class="n" style="color: #333;">queue</span><span class="p">,</span> <span class="n" style="color: #333;">q</span><span class="p">);</span></span>

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<pre style="margin: 0;">-<span id="LC704" class="line" lang="c">          <span class="p">}</span></span>

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<pre style="margin: 0;"> <span id="LC752" class="line" lang="c">          <span class="k" style="font-weight: 600;">return</span><span class="p">;</span></span>

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<pre style="margin: 0;"> <span id="LC753" class="line" lang="c">      <span class="p">}</span></span>

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<pre style="margin: 0;"> <span id="LC754" class="line" lang="c"></span>

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<li id="6477e10756faf038741e63d1ad499a1df809fe10">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/1bc104b029b4f043cac42253ee2387f4d574abca...3aa603620ef5a6aae1778278aa9914f344ab526e#6477e10756faf038741e63d1ad499a1df809fe10"><strong>rts/sm/GC.c</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">@@ -1701,13 +1701,8 @@ collect_gct_blocks (void)</td>

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<td class="diff-line-num old_line" data-linenumber="1701" 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">

1701

</td>

<td class="diff-line-num new_line" data-linenumber="1701" 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">

1701

</td>

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

<pre style="margin: 0;"> <span id="LC1701" class="line" lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="kt" style="color: #458; font-weight: 600;">void</span></span>

</pre>

</td>

</tr>

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

<td class="diff-line-num old_line" data-linenumber="1702" 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">

1702

</td>

<td class="diff-line-num new_line" data-linenumber="1702" 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">

1702

</td>

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

<pre style="margin: 0;"> <span id="LC1702" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">collect_pinned_object_blocks</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">void</span><span class="p">)</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1703" 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">

1703

</td>

<td class="diff-line-num new_line" data-linenumber="1703" 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">

1703

</td>

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

<pre style="margin: 0;"> <span id="LC1703" class="line" lang="c"><span class="p">{</span></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="1704" 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">

1704

</td>

<td class="diff-line-num new_line old" data-linenumber="1704" 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="LC1704" class="line" lang="c">    <span class="n" style="color: #333;">generation</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">gen</span><span class="p">;</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1705" 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">

1705

</td>

<td class="diff-line-num new_line" data-linenumber="1704" 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">

1704

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<pre style="margin: 0;"> <span id="LC1704" class="line" lang="c">    <span class="k" style="font-weight: 600;">const</span> <span class="n" style="color: #333;">bool</span> <span class="n" style="color: #333;">use_nonmoving</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">RtsFlags</span><span class="p">.</span><span class="n" style="color: #333;">GcFlags</span><span class="p">.</span><span class="n" style="color: #333;">useNonmoving</span><span class="p">;</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1706" 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">

1706

</td>

<td class="diff-line-num new_line old" data-linenumber="1705" 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="LC1706" class="line" lang="c">    <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">use_nonmoving</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">major_gc</span><span class="p">)</span> <span class="p">{</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1707" 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">

1707

</td>

<td class="diff-line-num new_line old" data-linenumber="1705" 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="LC1707" class="line" lang="c">        <span class="n" style="color: #333;">gen</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">oldest_gen</span><span class="p">;</span></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="1708" 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">

1708

</td>

<td class="diff-line-num new_line old" data-linenumber="1705" 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="LC1708" class="line" lang="c">    <span class="p">}</span> <span class="k" style="font-weight: 600;">else</span> <span class="p">{</span></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="1709" 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">

1709

</td>

<td class="diff-line-num new_line old" data-linenumber="1705" 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="LC1709" class="line" lang="c">        <span class="n" style="color: #333;">gen</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">g0</span><span class="p">;</span></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="1710" 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">

1710

</td>

<td class="diff-line-num new_line old" data-linenumber="1705" 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="LC1710" class="line" lang="c">    <span class="p">}</span></span>

</pre>

</td>

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

<td class="diff-line-num new old_line" data-linenumber="1711" 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="1705" 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">

1705

</td>

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

<pre style="margin: 0;">+<span id="LC1705" class="line" lang="c">    <span class="n" style="color: #333;">generation</span> <span class="o" style="font-weight: 600;">*</span><span class="k" style="font-weight: 600;">const</span> <span class="n" style="color: #333;">gen</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">use_nonmoving</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">major_gc</span><span class="p">)</span> <span class="o" style="font-weight: 600;">?</span> <span class="n" style="color: #333;">oldest_gen</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">g0</span><span class="p">;</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1711" 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">

1711

</td>

<td class="diff-line-num new_line" data-linenumber="1706" 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">

1706

</td>

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

<pre style="margin: 0;"> <span id="LC1706" class="line" lang="c"></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1712" 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">

1712

</td>

<td class="diff-line-num new_line" data-linenumber="1707" 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">

1707

</td>

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

<pre style="margin: 0;"> <span id="LC1707" class="line" lang="c">    <span class="k" style="font-weight: 600;">for</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">uint32_t</span> <span class="n" style="color: #333;">n</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span> <span class="n" style="color: #333;">n</span> <span class="o" style="font-weight: 600;"><</span> <span class="n" style="color: #333;">n_capabilities</span><span class="p">;</span> <span class="n" style="color: #333;">n</span><span class="o" style="font-weight: 600;">++</span><span class="p">)</span> <span class="p">{</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1713" 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">

1713

</td>

<td class="diff-line-num new_line" data-linenumber="1708" 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">

1708

</td>

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

<pre style="margin: 0;"> <span id="LC1708" class="line" lang="c">        <span class="n" style="color: #333;">bdescr</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">last</span> <span class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">;</span></span>

</pre>

</td>

</tr>

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

<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1732" 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="1727" 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">@@ -1732,7 +1727,7 @@ collect_pinned_object_blocks (void)</td>

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<td class="diff-line-num old_line" data-linenumber="1732" 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">

1732

</td>

<td class="diff-line-num new_line" data-linenumber="1727" 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">

1727

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<pre style="margin: 0;"> <span id="LC1727" class="line" lang="c">            <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">gen</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">large_objects</span> <span class="o" style="font-weight: 600;">!=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span> <span class="p">{</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1733" 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">

1733

</td>

<td class="diff-line-num new_line" data-linenumber="1728" 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">

1728

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

<pre style="margin: 0;"> <span id="LC1728" class="line" lang="c">                <span class="n" style="color: #333;">gen</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">large_objects</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">u</span><span class="p">.</span><span class="n" style="color: #333;">back</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">last</span><span class="p">;</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1734" 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">

1734

</td>

<td class="diff-line-num new_line" data-linenumber="1729" 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">

1729

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<pre style="margin: 0;"> <span id="LC1729" class="line" lang="c">            <span class="p">}</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1735" 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">

1735

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<td class="diff-line-num new_line old" data-linenumber="1730" 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="LC1735" class="line" lang="c">            <span class="n" style="color: #333;">g<span class="idiff left right">0</span></span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">large_objects</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">RELAXED_LOAD</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">capabilities</span><span class="p">[</span><span class="n" style="color: #333;">n</span><span class="p">]</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">pinned_object_blocks</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1736" 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="1730" 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">

1730

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<pre style="margin: 0;">+<span id="LC1730" class="line" lang="c">            <span class="n" style="color: #333;">g<span class="idiff left right">en</span></span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">large_objects</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">RELAXED_LOAD</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">capabilities</span><span class="p">[</span><span class="n" style="color: #333;">n</span><span class="p">]</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">pinned_object_blocks</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1736" 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">

1736

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<td class="diff-line-num new_line" data-linenumber="1731" 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">

1731

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<pre style="margin: 0;"> <span id="LC1731" class="line" lang="c">            <span class="n" style="color: #333;">RELAXED_STORE</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">capabilities</span><span class="p">[</span><span class="n" style="color: #333;">n</span><span class="p">]</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">pinned_object_blocks</span><span class="p">,</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">);</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1737" 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">

1737

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<td class="diff-line-num new_line" data-linenumber="1732" 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">

1732

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<pre style="margin: 0;"> <span id="LC1732" class="line" lang="c">        <span class="p">}</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1738" 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">

1738

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<td class="diff-line-num new_line" data-linenumber="1733" 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">

1733

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<pre style="margin: 0;"> <span id="LC1733" class="line" lang="c">    <span class="p">}</span></span>

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<br>

</li>

<li id="b4a38dad10ba126e05a0b6adc99aa0c2eb742875">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/1bc104b029b4f043cac42253ee2387f4d574abca...3aa603620ef5a6aae1778278aa9914f344ab526e#b4a38dad10ba126e05a0b6adc99aa0c2eb742875"><strong>rts/sm/NonMoving.c</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="191" 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="191" 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">@@ -191,8 +191,8 @@ Mutex concurrent_coll_finished_lock;</td>

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<td class="diff-line-num old_line" data-linenumber="191" 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">

191

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<pre style="margin: 0;"> <span id="LC191" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * === Other references ===</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="192" 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="LC192" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

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<td class="diff-line-num old_line" data-linenumber="193" 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="LC193" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Apart from the design document in docs/storage/nonmoving-gc and the Ueno</span></span>

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<td class="diff-line-num new_line old" data-linenumber="194" 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="LC194" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * 2016 paper <span class="idiff left right">(TODO citation) from which it drew inspiration, there are a</span></span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="195" 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">

195

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<pre style="margin: 0;">-<span id="LC195" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * <span class="idiff left right">variety </span>of other relevant Notes scattered throughout the tree:</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="196" 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="194" 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="LC194" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * 2016 paper <span class="idiff left right">[ueno 2016] from which it drew inspiration, there are a variety</span></span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="196" 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="195" 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="LC195" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * of other relevant Notes scattered throughout the tree:</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="196" 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">

196

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<td class="diff-line-num new_line" data-linenumber="196" 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="LC196" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

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<td class="diff-line-num old_line" data-linenumber="197" 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">

197

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<td class="diff-line-num new_line" data-linenumber="197" 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">

197

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<pre style="margin: 0;"> <span id="LC197" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *  - Note [Concurrent non-moving collection] (NonMoving.c) describes</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="198" 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">

198

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<td class="diff-line-num new_line" data-linenumber="198" 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">

198

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<pre style="margin: 0;"> <span id="LC198" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *    concurrency control of the nonmoving collector</span></span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="204" 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="204" 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">@@ -204,6 +204,10 @@ Mutex concurrent_coll_finished_lock;</td>

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<td class="diff-line-num old_line" data-linenumber="204" 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="LC204" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *  - Note [Aging under the non-moving collector] (NonMoving.c) describes how</span></span>

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<pre style="margin: 0;"> <span id="LC205" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *    we accommodate aging</span></span>

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<pre style="margin: 0;"> <span id="LC206" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

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<pre style="margin: 0;">+<span id="LC207" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *  - Note [Non-moving GC: Marking evacuated objects] (Evac.c) describes how</span></span>

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<pre style="margin: 0;">+<span id="LC208" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *    non-moving objects reached by evacuate() are marked, which is necessary</span></span>

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<pre style="margin: 0;">+<span id="LC209" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *    due to aging.</span></span>

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<pre style="margin: 0;">+<span id="LC210" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

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<pre style="margin: 0;"> <span id="LC211" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *  - Note [Large objects in the non-moving collector] (NonMovingMark.c)</span></span>

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<pre style="margin: 0;"> <span id="LC212" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *    describes how we track large objects.</span></span>

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<pre style="margin: 0;"> <span id="LC213" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></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">@@ -232,6 +236,11 @@ Mutex concurrent_coll_finished_lock;</td>

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<pre style="margin: 0;"> <span id="LC236" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *    how we use the DIRTY flags associated with MUT_VARs and TVARs to improve</span></span>

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<pre style="margin: 0;"> <span id="LC237" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *    barrier efficiency.</span></span>

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<pre style="margin: 0;"> <span id="LC238" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

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<pre style="margin: 0;">+<span id="LC239" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * [ueno 2016]:</span></span>

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<pre style="margin: 0;">+<span id="LC240" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *   Katsuhiro Ueno and Atsushi Ohori. 2016. A fully concurrent garbage</span></span>

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<pre style="margin: 0;">+<span id="LC241" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *   collector for functional programs on multicore processors. SIGPLAN Not. 51,</span></span>

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<pre style="margin: 0;">+<span id="LC242" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *   9 (September 2016), 421–433. DOI:https://doi.org/10.1145/3022670.2951944</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC243" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

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<pre style="margin: 0;"> <span id="LC244" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

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<pre style="margin: 0;"> <span id="LC245" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Note [Concurrent non-moving collection]</span></span>

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<td class="diff-line-num new_line" data-linenumber="246" 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">

246

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<pre style="margin: 0;"> <span id="LC246" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>

</pre>

</td>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="312" 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="321" 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">@@ -312,6 +321,8 @@ Mutex concurrent_coll_finished_lock;</td>

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<td class="diff-line-num old_line" data-linenumber="312" 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">

312

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<td class="diff-line-num new_line" data-linenumber="321" 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">

321

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<pre style="margin: 0;"> <span id="LC321" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="313" 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">

313

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<td class="diff-line-num new_line" data-linenumber="322" 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">

322

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<pre style="margin: 0;"> <span id="LC322" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *     The non-moving collector will come to C in the mark queue and mark it.</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="314" 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">

314

</td>

<td class="diff-line-num new_line" data-linenumber="323" 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">

323

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<pre style="margin: 0;"> <span id="LC323" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="315" 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="324" 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">

324

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<pre style="margin: 0;">+<span id="LC324" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * The implementation details of this are described in Note [Non-moving GC:</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="315" 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="325" 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">

325

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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="LC325" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Marking evacuated objects] in Evac.c.</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="315" 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">

315

</td>

<td class="diff-line-num new_line" data-linenumber="326" 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">

326

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

<pre style="margin: 0;"> <span id="LC326" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="316" 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">

316

</td>

<td class="diff-line-num new_line" data-linenumber="327" 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">

327

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

<pre style="margin: 0;"> <span id="LC327" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Note [Deadlock detection under the non-moving collector]</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="317" 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">

317

</td>

<td class="diff-line-num new_line" data-linenumber="328" 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">

328

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

<pre style="margin: 0;"> <span id="LC328" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>

</pre>

</td>

</tr>

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

<td class="diff-line-num unfold js-unfold old_line" data-linenumber="726" 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="737" 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">@@ -726,7 +737,6 @@ void nonmovingStop(void)</td>

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<td class="diff-line-num old_line" data-linenumber="726" 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">

726

</td>

<td class="diff-line-num new_line" data-linenumber="737" 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">

737

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<pre style="margin: 0;"> <span id="LC737" class="line" lang="c">                   <span class="s" style="color: #d14;">"waiting for nonmoving collector thread to terminate"</span><span class="p">);</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="727" 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">

727

</td>

<td class="diff-line-num new_line" data-linenumber="738" 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">

738

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<pre style="margin: 0;"> <span id="LC738" class="line" lang="c">        <span class="n" style="color: #333;">ACQUIRE_LOCK</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">concurrent_coll_finished_lock</span><span class="p">);</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="728" 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">

728

</td>

<td class="diff-line-num new_line" data-linenumber="739" 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">

739

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<pre style="margin: 0;"> <span id="LC739" class="line" lang="c">        <span class="n" style="color: #333;">waitCondition</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">concurrent_coll_finished</span><span class="p">,</span> <span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">concurrent_coll_finished_lock</span><span class="p">);</span></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="729" 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">

729

</td>

<td class="diff-line-num new_line old" data-linenumber="740" 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="LC729" class="line" lang="c">        <span class="n" style="color: #333;">joinOSThread</span><span class="p">(</span><span class="n" style="color: #333;">mark_thread</span><span class="p">);</span></span>

</pre>

</td>

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

<td class="diff-line-num old_line" data-linenumber="730" 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">

730

</td>

<td class="diff-line-num new_line" data-linenumber="740" 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">

740

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<pre style="margin: 0;"> <span id="LC740" class="line" lang="c">    <span class="p">}</span></span>

</pre>

</td>

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

<td class="diff-line-num old_line" data-linenumber="731" 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">

731

</td>

<td class="diff-line-num new_line" data-linenumber="741" 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">

741

</td>

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

<pre style="margin: 0;"> <span id="LC741" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="732" 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">

732

</td>

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

<pre style="margin: 0;"> <span id="LC742" class="line" lang="c"><span class="p">}</span></span>

</pre>

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