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<h3>
Simon Jakobi pushed to branch wip/sjakobi/nondetfolds
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/57b888c0e90be7189285a6b078c30b26d0923809">57b888c0</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2020-03-31T10:54:20-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Require GHC 8.8 as the minimum compiler for bootstrapping
This allows us to remove several bits of CPP that are either always
true or no longer reachable. As an added bonus, we no longer need to
worry about importing `Control.Monad.Fail.fail` qualified to avoid
clashing with `Control.Monad.fail`, since the latter is now the same
as the former.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/33f095511a8fce4c945bbcd4feb3910c854dcb61">33f09551</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2020-03-31T10:54:57-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add regression test for #17963
The panic in #17963 happened to be fixed by commit
e3c374cc5bd7eb49649b9f507f9f7740697e3f70. This patch adds a
regression test to ensure that it remains fixed.
Fixes #17963.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/09a36e80ecaefcfb60eccda98bd06461d0aeca70">09a36e80</a></strong>
<div>
<span>by Ömer Sinan Ağacan</span>
<i>at 2020-03-31T10:55:37-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Simplify stderrSupportsAnsiColors
The combinator andM is used only once, and the code is shorter and
simpler if you inline it.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/95bccdd034ce4dd2d1bc36db9f1ba5e172550249">95bccdd0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-03-31T10:56:19-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">base: Ensure that encoding global variables aren't inlined
As noted in #17970, these (e.g. `getFileSystemEncoding` and
`setFileSystemEncoding`) previously had unfoldings, which would
break their global-ness.
While not strictly necessary, I also add a NOINLINE on
`initLocaleEncoding` since it is used in `System.IO`, ensuring that we
only system's query the locale encoding once.
Fixes #17970.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/982aaa837aed564ae9b418cda8e97d4facff8fb8">982aaa83</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-03-31T10:56:55-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Update hadrian index revision.
Required in order to build hadrian using ghc-8.10
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4b9c586472bf99425f7bbcf346472d7c54f05028">4b9c5864</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-03-31T10:57:32-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">integer-gmp: Bump version and add changelog entry
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d7de603e9ce2717968edd6cb677ed7d85bf50fdd">d7de603e</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2020-03-31T19:09:58+02:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use non-deterministic strict fold instead of foldDVarSet
...which is O(n log n)
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aef31bb4c5bb5b5239eed76fc8982c5936354f72">aef31bb4</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2020-03-31T19:09:58+02:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Delete some evidence bindings more efficiently
(needs refactoring)
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3745108125573adb6f5dbbb79ad8988ac4a81598">37451081</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2020-03-31T19:09:58+02:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use non-deterministic fold to insert wanted evidence bindings
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/623e652b63a12522b50baab4f2137633ca6a92da">623e652b</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2020-03-31T19:09:58+02:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add and use evBindMapToVarSet
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/229d2a1737b763a440ee04d60aa83994e8a9b4b8">229d2a17</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2020-03-31T19:09:58+02:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Improve udfmToUfm
</pre>
</li>
</ul>
<h4>30 changed files:</h4>
<ul>
<li class="file-stats">
<a href="#587d266bb27a4dc3022bbed44dfa19849df3044c">
.gitlab-ci.yml
</a>
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<li class="file-stats">
<a href="#36a42448a83a9d1f6df8475f03ead2eed199dd8e">
compiler/GHC/Core/Lint.hs
</a>
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<li class="file-stats">
<a href="#35cff95f9f44690fc50b44bbe8ac3c554c7d5a5e">
compiler/GHC/Core/Make.hs
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</li>
<li class="file-stats">
<a href="#7685262a8a145335ec922d0a92ebb4a789bf0a3e">
compiler/GHC/Core/Op/ConstantFold.hs
</a>
</li>
<li class="file-stats">
<a href="#de7d9d388885ce6e3a45a39fac6e2c36a7f94f69">
compiler/GHC/Core/Op/SetLevels.hs
</a>
</li>
<li class="file-stats">
<a href="#d52bc1e90d7432064a2998de2a2751b6fecb7680">
compiler/GHC/Core/Op/Specialise.hs
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<li class="file-stats">
<a href="#89a2e0e1a3095c7a42b10f2819049908908080e8">
compiler/GHC/Core/Unify.hs
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</li>
<li class="file-stats">
<a href="#657eec52eed3c8be846a0b60eb6088d5f465de8a">
compiler/GHC/Stg/Lift/Analysis.hs
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</li>
<li class="file-stats">
<a href="#266bc13b57ed8c43a461b6d9a429c917879e16b4">
compiler/GHC/Types/Unique/DFM.hs
</a>
</li>
<li class="file-stats">
<a href="#dd1734ed93e4694f773dd468a1855524e6bbca0f">
compiler/GHC/Types/Unique/DSet.hs
</a>
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<li class="file-stats">
<a href="#b0b25f424f682f899323d3f74070dbe8fd59628e">
compiler/GHC/Types/Unique/FM.hs
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<li class="file-stats">
<a href="#71ee8226465c3f394f18d0bddd00077942947740">
compiler/GHC/Types/Unique/Set.hs
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<li class="file-stats">
<a href="#598aebb67cf4996e7c7414ec0bef247e3b5e0d73">
compiler/GHC/Types/Unique/Supply.hs
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<a href="#07e36027465263e8b90313979f12e1f4a9ce64a5">
compiler/GHC/Types/Var/Env.hs
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<a href="#8fa3c53ff1558af938c045405b5e177c50e91308">
compiler/GHC/Types/Var/Set.hs
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<li class="file-stats">
<a href="#37f9ffe79432abcd1805c1b2cb593d749387ec44">
compiler/main/SysTools/Process.hs
</a>
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<li class="file-stats">
<a href="#b5293b078eb6c44f702248dd629f1afc4cb6a1b1">
compiler/main/SysTools/Terminal.hs
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<li class="file-stats">
<a href="#89165943f253c43100bca06548eba40ff0519ca5">
compiler/typecheck/TcEvidence.hs
</a>
</li>
<li class="file-stats">
<a href="#d2ddf5ce2d076f8584d9825af8ea0d7ea0a38813">
compiler/typecheck/TcRnTypes.hs
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<li class="file-stats">
<a href="#088b49348926372d4b44b4f836a02df001856987">
compiler/typecheck/TcSMonad.hs
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<li class="file-stats">
<a href="#75d517f701402b106e4d98d255eb24b57ba72aab">
compiler/typecheck/TcSimplify.hs
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<li class="file-stats">
<a href="#341fd962c5f2c9fcf8be3dbdaa9a14ee1538af07">
compiler/typecheck/TcType.hs
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<li class="file-stats">
<a href="#42f7098b2e474179480d39d90b79057ae297eb50">
compiler/utils/Binary.hs
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<li class="file-stats">
<a href="#f2c7b28d0209d7810a94225b720fb9f9ac70c354">
compiler/utils/IOEnv.hs
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<li class="file-stats">
<a href="#87db583be5c13c1f7b3c958b10e03d67b6a2ca06">
configure.ac
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<li class="file-stats">
<a href="#5b653ef3b00262d0f1454de11e0714bd59d072e5">
hadrian/cabal.project
</a>
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<li class="file-stats">
<a href="#b71856f5728e262c6f67455997507c6fa2ede3b9">
hadrian/src/Hadrian/Utilities.hs
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<li class="file-stats">
<a href="#88aba3facfb6ad447031cb0f794a80fa9edef072">
hadrian/src/Settings/Builders/Cabal.hs
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<li class="file-stats">
<a href="#52ac3fb9d79a975886f930e407b4c98c993e9e8e">
hadrian/src/Settings/Builders/Ghc.hs
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<li class="file-stats">
<a href="#8ad3bef656fcb7fe1ad05c31b0157d93b17a0d0f">
libraries/base/Control/Monad/ST/Lazy/Imp.hs
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</li>
</ul>
<h5>The diff was not included because it is too large.</h5>
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