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Ben Gamari pushed to branch wip/T25377 at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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Commits:
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<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/182b2a99c1f79c98c928e63eec536b6c9ab15cae">182b2a99</a></strong>
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<span> by Ben Gamari </span> <i> at 2024-10-16T11:26:00-04:00 </i>
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<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>rts: Add assertions surrounding tracking of StgAsyncIOResult
We were previously pretty cavalier in handling StgAsyncIOResults which
has proven in #25377 to be problematic. We now initialize the
AsyncResult field of the `stg_block_async_void` frame to NULL when
pushing, assert that it is NULL in `awaitRequest` and that it is not
NULL in `stg_block_async_void`.
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2 changed files:
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<a href="#c295ca8b90dc6b200fb3e0cbd3dfdc5df307bbc7">
rts/HeapStackCheck.cmm
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<a href="#19c40968fce711587c95b15e0d0eee35bb95c99b">
rts/win32/AsyncMIO.c
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Changes:
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/182b2a99c1f79c98c928e63eec536b6c9ab15cae#c295ca8b90dc6b200fb3e0cbd3dfdc5df307bbc7"><strong style="font-weight: 600;">rts/HeapStackCheck.cmm</strong></a>
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<td class="line_content match" style="color: rgba(5,5,6,.24); padding: inherit;" bgcolor="#fbfafd">@@ -730,6 +730,7 @@ stg_block_async</td>
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730
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730
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC730" class="line" lang="ghc-cmm"><span class="nb" style="color: #0086b3;">INFO_TABLE_RET</span> <span class="p">(</span> <span class="nl">stg_block_async_void</span><span class="p">,</span> <span class="nl">RET_SMALL</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">W_</span> <span class="nl">info_ptr</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">W_</span> <span class="nl">ares</span> <span class="p">)</span></span>
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<td class="old_line diff-line-num" data-linenumber="731" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
731
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<td class="new_line diff-line-num" data-linenumber="731" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
731
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC731" class="line" lang="ghc-cmm"> <span class="k" style="font-weight: 600;">return</span> <span class="p">()</span></span>
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732
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732
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC732" class="line" lang="ghc-cmm"><span class="p">{</span></span>
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<td class="old_line diff-line-num new" data-linenumber="733" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
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<td class="new_line diff-line-num new" data-linenumber="733" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
733
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>+<span id="LC733" class="line" lang="ghc-cmm"> <span class="nf" style="color: #900; font-weight: 600;">ASSERT</span><span class="p">(</span><span class="nl">ares</span> <span class="o" style="font-weight: 600;">!=</span> <span class="mi" style="color: #099;">0</span><span class="p">);</span></span>
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733
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<td class="new_line diff-line-num" data-linenumber="734" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
734
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC734" class="line" lang="ghc-cmm"> <span class="k" style="font-weight: 600;">ccall</span> <span class="nf" style="color: #900; font-weight: 600;">free</span><span class="p">(</span><span class="nl">ares</span> <span class="dl">"</span><span class="s" style="color: #d14;">ptr</span><span class="dl">"</span><span class="p">);</span></span>
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734
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735
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC735" class="line" lang="ghc-cmm"> <span class="k" style="font-weight: 600;">return</span> <span class="p">();</span></span>
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736
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC736" class="line" lang="ghc-cmm"><span class="p">}</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="738" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="739" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">...</td>
<td class="line_content match" style="color: rgba(5,5,6,.24); padding: inherit;" bgcolor="#fbfafd">@@ -738,6 +739,7 @@ stg_block_async_void</td>
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738
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739
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC739" class="line" lang="ghc-cmm"><span class="p">{</span></span>
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<td class="new_line diff-line-num" data-linenumber="740" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
740
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC740" class="line" lang="ghc-cmm"> <span class="nf" style="color: #900; font-weight: 600;">Sp_adj</span><span class="p">(</span><span class="mi" style="color: #099;">-2</span><span class="p">);</span></span>
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740
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<td class="new_line diff-line-num" data-linenumber="741" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
741
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC741" class="line" lang="ghc-cmm"> <span class="vg" style="color: teal;">Sp</span><span class="p">(</span><span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="nl">stg_block_async_void_info</span><span class="p">;</span></span>
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<td class="new_line diff-line-num new" data-linenumber="742" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
742
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>+<span id="LC742" class="line" lang="ghc-cmm"> <span class="vg" style="color: teal;">Sp</span><span class="p">(</span><span class="mi" style="color: #099;">1</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="c1" style="color: #998; font-style: italic;">// this is the StgAsyncIOResult, which will be filled in by awaitRequests.</span></span>
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743
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC743" class="line" lang="ghc-cmm"> <span class="nl">BLOCK_GENERIC</span><span class="p">;</span></span>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC744" class="line" lang="ghc-cmm"><span class="p">}</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/182b2a99c1f79c98c928e63eec536b6c9ab15cae#19c40968fce711587c95b15e0d0eee35bb95c99b"><strong style="font-weight: 600;">rts/win32/AsyncMIO.c</strong></a>
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<td class="line_content match" style="color: rgba(5,5,6,.24); padding: inherit;" bgcolor="#fbfafd">@@ -326,6 +326,8 @@ start:</td>
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<td class="old_line diff-line-num" data-linenumber="326" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
326
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<td class="new_line diff-line-num" data-linenumber="326" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
326
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC326" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// stg_block_async_info stack frame, because</span></span>
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<td class="old_line diff-line-num" data-linenumber="327" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
327
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<td class="new_line diff-line-num" data-linenumber="327" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
327
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC327" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// the block_info field will be overwritten by</span></span>
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<td class="old_line diff-line-num" data-linenumber="328" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
328
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<td class="new_line diff-line-num" data-linenumber="328" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
328
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC328" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// pushOnRunQueue().</span></span>
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<td class="old_line diff-line-num new" data-linenumber="329" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
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<td class="new_line diff-line-num new" data-linenumber="329" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
329
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>+<span id="LC329" class="line" lang="c"> <span class="n" style="color: #333;">ASSERT</span><span class="p">(</span><span class="n" style="color: #333;">tso</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">stackobj</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">sp</span><span class="p">[</span><span class="mi" style="color: #099;">0</span><span class="p">]</span> <span class="o" style="font-weight: 600;">==</span> <span class="p">(</span><span class="n" style="color: #333;">StgWord</span><span class="p">)</span> <span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">stg_block_async_void_info</span><span class="p">);</span></span>
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<td class="new_line diff-line-num new" data-linenumber="330" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
330
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>+<span id="LC330" class="line" lang="c"> <span class="n" style="color: #333;">ASSERT</span><span class="p">(</span><span class="n" style="color: #333;">tso</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">stackobj</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">sp</span><span class="p">[</span><span class="mi" style="color: #099;">1</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>
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<td class="old_line diff-line-num" data-linenumber="329" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
329
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<td class="new_line diff-line-num" data-linenumber="331" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
331
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC331" class="line" lang="c"> <span class="n" style="color: #333;">tso</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">stackobj</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">sp</span><span class="p">[</span><span class="mi" style="color: #099;">1</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">W_</span><span class="p">)</span><span class="n" style="color: #333;">tso</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">block_info</span><span class="p">.</span><span class="n" style="color: #333;">async_result</span><span class="p">;</span></span>
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<td class="old_line diff-line-num" data-linenumber="330" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
330
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<td class="new_line diff-line-num" data-linenumber="332" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
332
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC332" class="line" lang="c"> <span class="n" style="color: #333;">pushOnRunQueue</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">MainCapability</span><span class="p">,</span> <span class="n" style="color: #333;">tso</span><span class="p">);</span></span>
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<td class="old_line diff-line-num" data-linenumber="331" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
331
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<td class="new_line diff-line-num" data-linenumber="333" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
333
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #28272d; position: relative; font-family: "GitLab Mono","JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC333" class="line" lang="c"> <span class="k" style="font-weight: 600;">break</span><span class="p">;</span></span>
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