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<h3>
Ben Gamari pushed to branch wip/T18580
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/ffc0d578ea22de02a68c64c094602701e65d8895">ffc0d578</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2020-08-13T09:49:56-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add HomeUnit type
Since Backpack the "home unit" is much more involved than what it was
before (just an identifier obtained with `-this-unit-id`). Now it is
used in conjunction with `-component-id` and `-instantiated-with` to
configure module instantiations and to detect if we are type-checking an
indefinite unit or compiling a definite one.
This patch introduces a new HomeUnit datatype which is much easier to
understand. Moreover to make GHC support several packages in the same
instances, we will need to handle several HomeUnits so having a
dedicated (documented) type is helpful.
Finally in #14335 we will also need to handle the case where we have no
HomeUnit at all because we are only loading existing interfaces for
plugins which live in a different space compared to units used to
produce target code. Several functions will have to be refactored to
accept "Maybe HomeUnit" parameters instead of implicitly querying the
HomeUnit fields in DynFlags. Having a dedicated type will make this
easier.
Bump haddock submodule
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8a51b2ab7433c06bddca9699b0dfd8ab1d11879b">8a51b2ab</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2020-08-13T21:09:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Make IOEnv monad one-shot (#18202)
On CI (x86_64-linux-deb9-hadrian, compile_time/bytes_allocated):
T10421 -1.8% (threshold: +/- 1%)
T10421a -1.7% (threshold: +/- 1%)
T12150 -4.9% (threshold: +/- 2%)
T12227 -1.6 (threshold: +/- 1%)
T12425 -1.5% (threshold: +/- 1%)
T12545 -3.8% (threshold: +/- 1%)
T12707 -3.0% (threshold: +/- 1%)
T13035 -3.0% (threshold: +/- 1%)
T14683 -10.3% (threshold: +/- 2%)
T3064 -6.9% (threshold: +/- 2%)
T4801 -4.3% (threshold: +/- 2%)
T5030 -2.6% (threshold: +/- 2%)
T5321FD -3.6% (threshold: +/- 2%)
T5321Fun -4.6% (threshold: +/- 2%)
T5631 -19.7% (threshold: +/- 2%)
T5642 -13.0% (threshold: +/- 2%)
T783 -2.7 (threshold: +/- 2%)
T9020 -11.1 (threshold: +/- 2%)
T9961 -3.4% (threshold: +/- 2%)
T1969 (compile_time/bytes_allocated) -2.2% (threshold: +/-1%)
T1969 (compile_time/max_bytes_used) +24.4% (threshold: +/-20%)
Additionally on other CIs:
haddock.Cabal -10.0% (threshold: +/- 5%)
haddock.compiler -9.5% (threshold: +/- 5%)
haddock.base (max bytes used) +24.6% (threshold: +/- 15%)
T10370 (max bytes used, i386) +18.4% (threshold: +/- 15%)
Metric Decrease:
T10421
T10421a
T12150
T12227
T12425
T12545
T12707
T13035
T14683
T3064
T4801
T5030
T5321FD
T5321Fun
T5631
T5642
T783
T9020
T9961
haddock.Cabal
haddock.compiler
Metric Decrease 'compile_time/bytes allocated':
T1969
Metric Increase 'compile_time/max_bytes_used':
T1969
T10370
haddock.base
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9f66fdf69b7bcdacbfc46e636668ad0fe509b1b6">9f66fdf6</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-08-14T15:50:34-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Drop --io-manager flag from testsuite configuration
This is no longer necessary as there are now dedicated testsuite ways
which run tests with WinIO.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/55fd1dc55990623dcf3b2e6143e766242315d757">55fd1dc5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-08-14T15:51:10-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">llvm-targets: Add i686 targets
Addresses #18422.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6e2ef8393b1f910ddc5cebef2f576def057f8abe">6e2ef839</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-08-17T09:18:06-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Clean up TBDs in changelog
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f07780443c659b979e73f4c704f11daa8f1bf62e">f0778044</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-08-17T09:21:04-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">base: Fail if `timeout` is used when exceptions are masked
As pointed out in #18580, `timeout`'s implementation assumes that
exceptions will be handled. Document and assert this precondition.
Fixes #18580.
</pre>
</li>
</ul>
<h4>30 changed files:</h4>
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<a href="#d0d96a6d03668aeab20ebe05e2c4ccb798c7e64c">
compiler/GHC.hs
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<li class="file-stats">
<a href="#bd153f89bc48f3fd5079b51fb799808aacbd750c">
compiler/GHC/Core/Opt/Pipeline.hs
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<a href="#a5d27de4e3111a69f69902c65ecf7b3379f7c49a">
compiler/GHC/CoreToStg/Prep.hs
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<li class="file-stats">
<a href="#c7ca3e6f50c136f058ec179bdb3fbb3cc19a7b42">
compiler/GHC/Data/IOEnv.hs
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<li class="file-stats">
<a href="#dbce6cb5e8f3d5287103c66d1a56ad63bbbd11a9">
compiler/GHC/Driver/Backpack.hs
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<a href="#97f0903301283520075e7f2a73a39ad2bf899420">
compiler/GHC/Driver/Finder.hs
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<a href="#9a679a2680ef6061397f1987091ea9f96ffe095d">
compiler/GHC/Driver/Main.hs
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<a href="#1dab250036d04cfcf3530f6ff27889f723cc2dda">
compiler/GHC/Driver/Make.hs
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<a href="#b8e6af642e56019828828dc679683c04afb81867">
compiler/GHC/Driver/Pipeline.hs
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<a href="#774d88050336ef660c7a219fb06c480c2fc639bc">
compiler/GHC/Driver/Session.hs
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<a href="#ff068514f65150b5ec069a421b0223fe35f41569">
compiler/GHC/Driver/Types.hs
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<a href="#dd79b5199bc3b425c4536c633b39006df111a7ef">
compiler/GHC/HsToCore.hs
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<li class="file-stats">
<a href="#c8a27621f82549165d8946ae8e9f467660958059">
compiler/GHC/HsToCore/Monad.hs
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<li class="file-stats">
<a href="#74a7b3677ea9cb2138e0b682ce38fd67dbf57c14">
compiler/GHC/HsToCore/Usage.hs
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<a href="#7d51edda4fa76a202cce0bca672ef300249ba8ea">
compiler/GHC/Iface/Load.hs
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<li class="file-stats">
<a href="#4ed0dc87b8bdd9324e8a181cff15caa104b9e58c">
compiler/GHC/Iface/Make.hs
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<a href="#a8e6b17fc507589522323d8dd20d9713e8c06760">
compiler/GHC/Iface/Recomp.hs
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<a href="#0b4bc77723e1f22f50d70e89a81f6d92c3904408">
compiler/GHC/Iface/Recomp/Flags.hs
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<li class="file-stats">
<a href="#d11de0586c9bcbcf4c5d10d94801cc1f97e8df1b">
compiler/GHC/Iface/Rename.hs
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<li class="file-stats">
<a href="#d11203a9321005ba51a16d751c86f609d1f18c71">
compiler/GHC/Iface/Tidy.hs
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<li class="file-stats">
<a href="#a1ae0a1be35c859d90b0756920a7198075fb91e1">
compiler/GHC/Parser/Lexer.x
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<li class="file-stats">
<a href="#7dd1cd0f6f2164a14c83d9aa564dd32bc30e447a">
compiler/GHC/Rename/Module.hs
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<li class="file-stats">
<a href="#e05ee69330b0f7088f11a5f3567137547489664d">
compiler/GHC/Rename/Names.hs
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<li class="file-stats">
<a href="#173c7eb846a4e9b5fee79688a72cbf6a326e4e1e">
compiler/GHC/Runtime/Eval.hs
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<a href="#3556223cd3ef45d787321b5290bf33535a361873">
compiler/GHC/Runtime/Linker.hs
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<a href="#da695c624a1f82e3d4e3097fd8be3602ffc1ae92">
compiler/GHC/SysTools.hs
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<a href="#b9ef33fb2c268400b203610bf7df4ab447384596">
compiler/GHC/SysTools/ExtraObj.hs
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<a href="#e65390fa5a32c453a81a1c9a3e1c4464d155ca4a">
compiler/GHC/Tc/Module.hs
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<li class="file-stats">
<a href="#83d23a46bb6cdc8b1edc16f1fd2c8f5c53e2c9ca">
compiler/GHC/Tc/TyCl.hs
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<li class="file-stats">
<a href="#5d7c5ef0541bd4c1c950ecc95edf95171d20f538">
compiler/GHC/Tc/Utils/Backpack.hs
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<h5>The diff was not included because it is too large.</h5>
</div>
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