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<h3>
Marge Bot pushed to branch wip/marge_bot_batch_merge_job
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/5bcf86063c0e5b6ee0d162ea64c88fdaad89e620">5bcf8606</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2020-05-17T08:46:38-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Remove duplicate Note [When to print foralls] in GHC.Core.TyCo.Ppr
There are two different Notes named `[When to print foralls]`. The
most up-to-date one is in `GHC.Iface.Type`, but there is a second
one in `GHC.Core.TyCo.Ppr`. The latter is less up-to-date, as it was
written before GHC switched over to using ifaces to pretty-print
types. I decided to just remove the latter and replace it with a
reference to the former.
[ci skip]
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8041b082c02ae6964bb800893aae0013b21dbde9">8041b082</a></strong>
<div>
<span>by Fumiaki Kinoshita</span>
<i>at 2020-05-20T18:16:07-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">base: Add Generic instances to various datatypes under GHC.*
* GHC.Fingerprint.Types: Fingerprint
* GHC.RTS.Flags: GiveGCStats, GCFlags, ConcFlags, DebugFlags, CCFlags, DoHeapProfile, ProfFlags, DoTrace, TraceFlags, TickyFlags, ParFlags and RTSFlags
* GHC.Stats: RTSStats and GCStats
* GHC.ByteOrder: ByteOrder
* GHC.Unicode: GeneralCategory
* GHC.Stack.Types: SrcLoc
Metric Increase:
haddock.base
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b430e095247c89c90c7e3eeb5d54d01ea62e5ad5">b430e095</a></strong>
<div>
<span>by Gert-Jan Bottu</span>
<i>at 2020-05-20T18:16:10-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Explicit Specificity
Implementation for Ticket #16393.
Explicit specificity allows users to manually create inferred type variables,
by marking them with braces.
This way, the user determines which variables can be instantiated through
visible type application.
The additional syntax is included in the parser, allowing users to write
braces in type variable binders (type signatures, data constructors etc).
This information is passed along through the renamer and verified in the
type checker.
The AST for type variable binders, data constructors, pattern synonyms,
partial signatures and Template Haskell has been updated to include the
specificity of type variables.
Minor notes:
- Bumps haddock submodule
- Disables pattern match checking in GHC.Iface.Type with GHC 8.8
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9e94937b275ec95d0f4ca589fc27f1cc46340808">9e94937b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-05-20T18:16:11-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">nonmoving: Optimise the write barrier
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5684eae3a673fe9b62a0da5c1574857c5a7ebb50">5684eae3</a></strong>
<div>
<span>by Gleb Popov</span>
<i>at 2020-05-20T18:16:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Set locale to C.UTF-8.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/30f2a2b10f01201de532ee61530b5dcf42111098">30f2a2b1</a></strong>
<div>
<span>by Stefan Holdermans</span>
<i>at 2020-05-20T18:16:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Allow spaces in GHCi :script file names
This patch updates the user interface of GHCi so that file names passed
to the ':script' command may contain spaces escaped with a backslash.
For example:
:script foo\ bar.script
The implementation uses a modified version of 'words' that does not
break on escaped spaces.
Fixes #18027.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/013f4c88c2e2a87ab71ac99d2233068cc8d97953">013f4c88</a></strong>
<div>
<span>by Stefan Holdermans</span>
<i>at 2020-05-20T18:16:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add extra tests for GHCi :script syntax checks
The syntax for GHCi's ":script" command allows for only a single file
name to be passed as an argument. This patch adds a test for the cases
in which a file name is missing or multiple file names are passed.
Related to #T18027.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6217dc8fb6ba1557ba16da35081b7024adbd1acc">6217dc8f</a></strong>
<div>
<span>by Stefan Holdermans</span>
<i>at 2020-05-20T18:16:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Allow GHCi :script file names in double quotes
This patch updates the user interface of GHCi so that file names passed
to the ':script' command can be wrapped in double quotes.
For example:
:script "foo bar.script"
The implementation uses a modified version of 'words' that treats
character sequences enclosed in double quotes as single words.
Fixes #18027.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6512ffe238f2738a1c03c1065450fe98bb78ed24">6512ffe2</a></strong>
<div>
<span>by Stefan Holdermans</span>
<i>at 2020-05-20T18:16:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Update documentation for GHCi :script
This patch adds the fixes that allow for file names containing spaces to
be passed to GHCi's ':script' command to the release notes for 8.12 and
expands the user-guide documentation for ':script' by mentioning how
such file names can be passed.
Related to #18027.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/222d36a409ec3237d3abd9ef5de96957569611ca">222d36a4</a></strong>
<div>
<span>by Tuan Le</span>
<i>at 2020-05-20T18:16:21-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">llvmGen: Consider Relocatable read-only data as not constantReferences: #18137
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b89b6040302c0efa9b478eee855b7e1a4123845c">b89b6040</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2020-05-20T18:16:27-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use `Checker` for `tc_pat`
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/805341f039903e1c285abb6b13de6fb1d5beb3d2">805341f0</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2020-05-20T18:16:27-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use `Checker` for `tc_lpat` and `tc_lpats`
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9c5a8e667cdfe01b12c4f73bda2aba5dd60f30cc">9c5a8e66</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2020-05-20T18:16:27-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">More judiciously panic in `ts_pat`
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/954ae448f3feb2ec3184086c3b1cca52a5b34d6b">954ae448</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2020-05-20T18:16:27-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Put `PatEnv` first in `GHC.Tc.Gen.Pat.Checker`
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6f743f5202513fe8cb75632564a6d97a79256fbb">6f743f52</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2020-05-20T18:16:27-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Tiny cleaup eta-reduce away a function argument
In GHC, not in the code being compiled!
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eb582362920ac37658780814a85e919b6c575691">eb582362</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2020-05-20T18:16:27-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use braces with do in `SplicePat` case for consistency
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6740c7002c80e01de8b968a8029947ffc7cc119a">6740c700</a></strong>
<div>
<span>by buggymcbugfix</span>
<i>at 2020-05-20T18:16:28-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix spelling mistakes and typos
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4dd2934fe95c2900e77cd1d86d81cd46c0ba649d">4dd2934f</a></strong>
<div>
<span>by buggymcbugfix</span>
<i>at 2020-05-20T18:16:28-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add INLINABLE pragmas to Enum list producers
The INLINABLE pragmas ensure that we export stable (unoptimised) unfoldings in
the interface file so we can do list fusion at usage sites.
Related tickets: #15185, #8763, #18178.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b180ecff576c75cd74856884e5f6566b474ef4bc">b180ecff</a></strong>
<div>
<span>by buggymcbugfix</span>
<i>at 2020-05-20T18:16:28-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Piggyback on Enum Word methods for Word64
If we are on a 64 bit platform, we can use the efficient Enum Word
methods for the Enum Word64 instance.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c788d2c2c7bd7d27f8d6310dac9b870bff8fd403">c788d2c2</a></strong>
<div>
<span>by buggymcbugfix</span>
<i>at 2020-05-20T18:16:28-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Document INLINE(ABLE) pragmas that enable fusion
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e268bcbdb503f18599beff738a69576888b04f4c">e268bcbd</a></strong>
<div>
<span>by Richard Eisenberg</span>
<i>at 2020-05-20T18:16:28-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">MR template should ask for key part</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/baaad2e7d779ddab412dc01ef290280de77fe000">baaad2e7</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2020-05-20T18:16:29-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Make `Int`'s `mod` and `rem` strict in their first arguments
They used to be strict until 4d2ac2d (9 years ago).
It's obviously better to be strict for performance reasons.
It also blocks #18067.
NoFib results:
```
--------------------------------------------------------------------------------
Program Allocs Instrs
--------------------------------------------------------------------------------
integer -1.1% +0.4%
wheel-sieve2 +21.2% +20.7%
--------------------------------------------------------------------------------
Min -1.1% -0.0%
Max +21.2% +20.7%
Geometric Mean +0.2% +0.2%
```
The regression in `wheel-sieve2` is due to reboxing that likely will go
away with the resolution of #18067. See !3282 for details.
Fixes #18187.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ec6adc53cb901ecbfaee3192b79b4e751d63f161">ec6adc53</a></strong>
<div>
<span>by Galen Huntington</span>
<i>at 2020-05-20T18:16:37-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Clarify pitfalls of NegativeLiterals; see #18022.</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/28ffe9ccccd06b63c3321ed8df310bccfb272dac">28ffe9cc</a></strong>
<div>
<span>by Alexey Kuleshevich</span>
<i>at 2020-05-20T18:16:40-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix wording in primops documentation to reflect the correct reasoning:
* Besides resizing functions, shrinking ones also mutate the
size of a mutable array and because of those two `sizeofMutabeByteArray`
and `sizeofSmallMutableArray` are now deprecated
* Change reference in documentation to the newer functions `getSizeof*`
instead of `sizeof*` for shrinking functions
* Fix incorrect mention of "byte" instead of "small"
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0ea4485df36606756ec51652a501db3cdbc76ec3">0ea4485d</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-05-20T18:16:41-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Don't variable-length encode magic iface constant.
We changed to use variable length encodings for many types by default,
including Word32. This makes sense for numbers but not when Word32 is
meant to represent four bytes.
I added a FixedLengthEncoding newtype to Binary who's instances
interpret their argument as a collection of bytes instead of a number.
We then use this when writing/reading magic numbers to the iface file.
I also took the libery to remove the dummy iface field.
This fixes #18180.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/39529e709032d5493ad5e57a33633f6f5947c528">39529e70</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2020-05-20T18:16:41-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add a regression test for #11506
The testcase works now.
See explanation in https://gitlab.haskell.org/ghc/ghc/issues/11506#note_273202
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dd94af15cb3a6c895fe749e2b668f86b895fafce">dd94af15</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2020-05-20T18:16:53-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Sort deterministically metric output
Previously, we sorted according to the test name and way,
but the metrics (max_bytes_used/peak_megabytes_allocated etc.)
were appearing in nondeterministic order.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e90b54c1bf248617b4f20b460dc21c5da9c5a34a">e90b54c1</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2020-05-20T18:16:56-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Move isDynLinkName into GHC.Types.Name
It doesn't belong into GHC.Unit.State
</pre>
</li>
</ul>
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compiler/GHC/Builtin/Names/TH.hs
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compiler/GHC/Builtin/Types.hs
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