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<h3>
Daneel S. Yaitskov pushed to branch wip/T17949
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4>
Commits:
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<ul>
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aef64146d168761eda5e3cedcbd7225f4e04bf95">aef64146</a></strong>
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<span>by Daneel Yaitskov</span>
<i>at 2020-06-01T18:39:28-07:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">T17949 mark getTraceFlags as inlinable
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4c7d1c70453f256275d36b01c7972cd9b7da6e5e">4c7d1c70</a></strong>
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<span>by Daneel Yaitskov</span>
<i>at 2020-06-01T18:42:46-07:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">T17949 comment userTracingEnabled
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</li>
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9cc843755ae73353f4fbb2ce48b5cdc3af51e4fe">9cc84375</a></strong>
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<span>by Daneel Yaitskov</span>
<i>at 2020-06-01T18:44:14-07:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">T17949 inline whenEventlog
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f7d009e39607862462205449a68744a23a66f73d">f7d009e3</a></strong>
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<span>by Daneel Yaitskov</span>
<i>at 2020-06-01T18:44:50-07:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">T17949 export userTracingEnabled
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<h4>2 changed files:</h4>
<ul>
<li class="file-stats">
<a href="#cbecf35546dee344ca6fb2e73c7515f07e868d0f">
libraries/base/Debug/Trace.hs
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<li class="file-stats">
<a href="#c184941110ec11e4f595256c2354bed617511571">
libraries/base/GHC/RTS/Flags.hsc
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<h4>Changes:</h4>
<li id="cbecf35546dee344ca6fb2e73c7515f07e868d0f">
<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/480b208d78de5e236bd7e4fc682c83f05077b270...f7d009e39607862462205449a68744a23a66f73d#cbecf35546dee344ca6fb2e73c7515f07e868d0f"><strong>libraries/base/Debug/Trace.hs</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">@@ -42,6 +42,8 @@ module Debug.Trace (</td>
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<pre style="margin: 0;"> <span id="LC42" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- $markers</span></span>
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<pre style="margin: 0;"> <span id="LC43" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">traceMarker</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC44" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">traceMarkerIO</span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC45" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC46" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">userTracingEnabled</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC47" class="line" lang="haskell"> <span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC48" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC49" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.IO.Unsafe</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">@@ -75,19 +77,13 @@ import Data.List (null, partition)</td>
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<pre style="margin: 0;"> <span id="LC77" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Some implementations of these functions may decorate the string that\'s</span></span>
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<pre style="margin: 0;"> <span id="LC78" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- output to indicate that you\'re tracing.</span></span>
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<pre style="margin: 0;"> <span id="LC79" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC78" class="line" lang="haskell"><span class="n" style="color: #333;">userTracingEnabled</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>
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<pre style="margin: 0;">-<span id="LC79" class="line" lang="haskell"><span class="n" style="color: #333;">userTracingEnabled</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">unsafeDupablePerformIO</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">user</span> <span class="o" style="font-weight: 600;"><$!></span> <span class="n" style="color: #333;">inline</span> <span class="n" style="color: #333;">getTraceFlags</span></span>
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<pre style="margin: 0;">-<span id="LC80" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC81" class="line" lang="haskell"><span class="cd">-- | The 'whenEventlog' function runs the argument action</span></span>
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<pre style="margin: 0;">+<span id="LC80" class="line" lang="haskell"><span class="cd">-- | The 'userTracingEnabled' function returns True</span></span>
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<pre style="margin: 0;"> <span id="LC81" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- if eventlogging (+RTS -l) is enabled.</span></span>
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<pre style="margin: 0;">+<span id="LC82" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- It doens't reflect following getTraceFlags updates.</span></span>
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<pre style="margin: 0;"> <span id="LC83" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC84" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- @since 4.14.0.0</span></span>
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<pre style="margin: 0;">-<span id="LC85" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# INLINE whenEventlog #-}</span></span>
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<pre style="margin: 0;">-<span id="LC86" class="line" lang="haskell"><span class="n" style="color: #333;">whenEventlog</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="nb" style="color: #0086b3;">()</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;">-<span id="LC87" class="line" lang="haskell"><span class="n" style="color: #333;">whenEventlog</span> <span class="n" style="color: #333;">logAction</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;">-<span id="LC88" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">userTracingEnabled</span></span>
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<pre style="margin: 0;">-<span id="LC89" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">then</span> <span class="n" style="color: #333;">logAction</span></span>
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<pre style="margin: 0;">-<span id="LC90" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;">+<span id="LC85" class="line" lang="haskell"><span class="n" style="color: #333;">userTracingEnabled</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>
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<pre style="margin: 0;">+<span id="LC86" class="line" lang="haskell"><span class="n" style="color: #333;">userTracingEnabled</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">unsafeDupablePerformIO</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">user</span> <span class="o" style="font-weight: 600;"><$!></span> <span class="n" style="color: #333;">inline</span> <span class="n" style="color: #333;">getTraceFlags</span></span>
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<pre style="margin: 0;"> <span id="LC87" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC88" class="line" lang="haskell"><span class="cd">-- | The 'traceIO' function outputs the trace message from the IO monad.</span></span>
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<pre style="margin: 0;"> <span id="LC89" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- This sequences the output with respect to other IO actions.</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">@@ -283,8 +279,10 @@ traceEvent msg expr = unsafeDupablePerformIO $ do</td>
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<pre style="margin: 0;"> <span id="LC279" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- @since 4.5.0.0</span></span>
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<pre style="margin: 0;"> <span id="LC280" class="line" lang="haskell"><span class="n" style="color: #333;">traceEventIO</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">String</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;"> <span id="LC281" class="line" lang="haskell"><span class="n" style="color: #333;">traceEventIO</span> <span class="n" style="color: #333;">msg</span> <span class="o" style="font-weight: 600;">=</span></span>
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<pre style="margin: 0;">-<span id="LC286" class="line" lang="haskell"> <span class="n" style="color: #333;">whenEventlog</span> <span class="o" style="font-weight: 600;">$</span> <span class="kt" style="color: #458; font-weight: 600;">GHC</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Foreign</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">withCString</span> <span class="n" style="color: #333;">utf8</span> <span class="n" style="color: #333;">msg</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Ptr</span> <span class="n" style="color: #333;">p</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">-></span></span>
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<pre style="margin: 0;">-<span id="LC287" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">traceEvent</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">p</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span> <span class="n" style="color: #333;">s'</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="nb" style="color: #0086b3;">()</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC282" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">userTracingEnabled</span></span>
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<pre style="margin: 0;">+<span id="LC283" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">then</span> <span class="kt" style="color: #458; font-weight: 600;">GHC</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Foreign</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">withCString</span> <span class="n" style="color: #333;">utf8</span> <span class="n" style="color: #333;">msg</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Ptr</span> <span class="n" style="color: #333;">p</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">-></span></span>
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<pre style="margin: 0;">+<span id="LC284" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">traceEvent</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">p</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span> <span class="n" style="color: #333;">s'</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="nb" style="color: #0086b3;">()</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC285" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;"> <span id="LC286" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC287" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- $markers</span></span>
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<pre style="margin: 0;"> <span id="LC288" class="line" lang="haskell"><span class="c1" 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">@@ -333,5 +331,7 @@ traceMarker msg expr = unsafeDupablePerformIO $ do</td>
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<pre style="margin: 0;"> <span id="LC331" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- @since 4.7.0.0</span></span>
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<pre style="margin: 0;"> <span id="LC332" class="line" lang="haskell"><span class="n" style="color: #333;">traceMarkerIO</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">String</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;"> <span id="LC333" class="line" lang="haskell"><span class="n" style="color: #333;">traceMarkerIO</span> <span class="n" style="color: #333;">msg</span> <span class="o" style="font-weight: 600;">=</span></span>
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336
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<pre style="margin: 0;">-<span id="LC336" class="line" lang="haskell"> <span class="n" style="color: #333;">whenEventlog</span> <span class="o" style="font-weight: 600;">$</span> <span class="kt" style="color: #458; font-weight: 600;">GHC</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Foreign</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">withCString</span> <span class="n" style="color: #333;">utf8</span> <span class="n" style="color: #333;">msg</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Ptr</span> <span class="n" style="color: #333;">p</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">-></span></span>
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<pre style="margin: 0;">-<span id="LC337" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">traceMarker</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">p</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span> <span class="n" style="color: #333;">s'</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="nb" style="color: #0086b3;">()</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span></pre>
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<pre style="margin: 0;">+<span id="LC334" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">userTracingEnabled</span></span>
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<pre style="margin: 0;">+<span id="LC335" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">then</span> <span class="kt" style="color: #458; font-weight: 600;">GHC</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Foreign</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">withCString</span> <span class="n" style="color: #333;">utf8</span> <span class="n" style="color: #333;">msg</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Ptr</span> <span class="n" style="color: #333;">p</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">-></span></span>
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<pre style="margin: 0;">+<span id="LC336" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">traceMarker</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">p</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span> <span class="n" style="color: #333;">s'</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="nb" style="color: #0086b3;">()</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC337" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span></span></pre>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/480b208d78de5e236bd7e4fc682c83f05077b270...f7d009e39607862462205449a68744a23a66f73d#c184941110ec11e4f595256c2354bed617511571"><strong>libraries/base/GHC/RTS/Flags.hsc</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">@@ -535,6 +535,7 @@ getProfFlags = do</td>
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<pre style="margin: 0;"> <span id="LC535" class="line" lang="plaintext"> <*> (peekCStringOpt =<< #{peek PROFILING_FLAGS, retainerSelector} ptr)</span>
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<pre style="margin: 0;"> <span id="LC536" class="line" lang="plaintext"> <*> (peekCStringOpt =<< #{peek PROFILING_FLAGS, bioSelector} ptr)</span>
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<pre style="margin: 0;"> <span id="LC537" class="line" lang="plaintext"></span>
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<pre style="margin: 0;">+<span id="LC538" class="line" lang="plaintext">{-# INLINABLE getTraceFlags #-}</span>
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<pre style="margin: 0;"> <span id="LC539" class="line" lang="plaintext">getTraceFlags :: IO TraceFlags</span>
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539
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540
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<pre style="margin: 0;"> <span id="LC540" class="line" lang="plaintext">getTraceFlags = do</span>
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540
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541
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<pre style="margin: 0;"> <span id="LC541" class="line" lang="plaintext"> let ptr = (#ptr RTS_FLAGS, TraceFlags) rtsFlagsPtr</span>
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