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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/3e96c4d7955720103425fbb6d7bc6c6a6f93207d">3e96c4d7</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2019-04-30T14:02:24Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Compute demand signatures assuming idArity
This does four things:
1. Look at `idArity` instead of manifest lambdas to decide whether to use LetUp
2. Compute the strictness signature in LetDown assuming at least `idArity`
incoming arguments
3. Remove the special case for trivial RHSs, which is subsumed by 2
4. Don't perform the W/W split when doing so would eta expand a binding.
Otherwise we would eta expand PAPs, causing unnecessary churn in the
Simplifier.
NoFib Results
--------------------------------------------------------------------------------
Program Allocs Instrs
--------------------------------------------------------------------------------
fannkuch-redux +0.3% 0.0%
gg -0.0% -0.1%
maillist +0.2% +0.2%
minimax 0.0% +0.8%
pretty 0.0% -0.1%
reptile -0.0% -1.2%
--------------------------------------------------------------------------------
Min -0.0% -1.2%
Max +0.3% +0.8%
Geometric Mean +0.0% -0.0%
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/dd696a6a534d4378dc474d4f0ba8feea8489ee9c">dd696a6a</a></strong>
<div>
<span>by Alp Mestanogullari</span>
<i>at 2019-04-30T14:02:26Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Build Hadrian with -Werror in the 'ghc-in-ghci' CI job
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/8e84eeff6d8fbc07643f24203016b3f020cc0edc">8e84eeff</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-30T14:02:26Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">ErrUtils: Emit progress messages to eventlog
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/b3264df51d5d3f133dfeca8b1d42ab7cea2d2231">b3264df5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-30T14:02:26Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Emit GHC timing events to eventlog
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/6e7b6f6faa6ee036ac1a0bd359c6cdd561515819">6e7b6f6f</a></strong>
<div>
<span>by Chaitanya Koparkar</span>
<i>at 2019-04-30T14:02:28Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix #16593 by having only one definition of -fprint-explicit-runtime-reps
[skip ci]
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/3e6911568c264da18a925df37f43ac08efba9b15">3e691156</a></strong>
<div>
<span>by Sven Tennie</span>
<i>at 2019-04-30T14:02:29Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Typeset Big-O complexities with Tex-style notation (#16090)
Use `\min` instead of `min` to typeset it as an operator.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/933e759adf5f1c8471e4f5c0025b9eb0498c9b32">933e759a</a></strong>
<div>
<span>by Shayne Fletcher</span>
<i>at 2019-04-30T14:02:31Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Make Extension derive Bounded
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/7d599bbf25fb5ff9c17ae28a500c8dc9e5639843">7d599bbf</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-30T14:02:31Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Mark concprog001 as fragile
Due to #16604.</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/f34d657636cf68277ca104b88553a7566f18acce">f34d6576</a></strong>
<div>
<span>by Alp Mestanogullari</span>
<i>at 2019-04-30T14:02:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Hadrian: generate JUnit testsuite report in Linux CI job
We also keep it as an artifact, like we do for non-Hadrian jobs, and list it
as a junit report, so that the test results are reported in the GitLab UI for
merge requests.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/7c7eb687a18cd6f2cb53a85096faae3cfc8e6676">7c7eb687</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2019-04-30T14:02:33Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Pattern/expression ambiguity resolution
This patch removes 'EWildPat', 'EAsPat', 'EViewPat', and 'ELazyPat'
from 'HsExpr' by using the ambiguity resolution system introduced
earlier for the command/expression ambiguity.
Problem: there are places in the grammar where we do not know whether we
are parsing an expression or a pattern, for example:
do { Con a b <- x } -- 'Con a b' is a pattern
do { Con a b } -- 'Con a b' is an expression
Until we encounter binding syntax (<-) we don't know whether to parse
'Con a b' as an expression or a pattern.
The old solution was to parse as HsExpr always, and rejig later:
checkPattern :: LHsExpr GhcPs -> P (LPat GhcPs)
This meant polluting 'HsExpr' with pattern-related constructors. In
other words, limitations of the parser were affecting the AST, and all
other code (the renamer, the typechecker) had to deal with these extra
constructors.
We fix this abstraction leak by parsing into an overloaded
representation:
class DisambECP b where ...
newtype ECP = ECP { runECP_PV :: forall b. DisambECP b => PV (Located b) }
See Note [Ambiguous syntactic categories] for details.
Now the intricacies of parsing have no effect on the hsSyn AST when it
comes to the expression/pattern ambiguity.
</pre>
</li>
</ul>
<h4>26 changed files:</h4>
<ul>
<li class="file-stats">
<a href="#587d266bb27a4dc3022bbed44dfa19849df3044c">
.gitlab-ci.yml
</a>
</li>
<li class="file-stats">
<a href="#10828b99499a9ef1e9839b007762c68994bcb036">
compiler/basicTypes/Demand.hs
</a>
</li>
<li class="file-stats">
<a href="#2c842f2f15e67826dc12cc363525b56acb7b7882">
compiler/basicTypes/Id.hs
</a>
</li>
<li class="file-stats">
<a href="#6f7593803995899e68e1b976dcde5817ec0f2342">
compiler/basicTypes/IdInfo.hs
</a>
</li>
<li class="file-stats">
<a href="#75c960e63e855ede311c1cf6d407b2bf0b742333">
compiler/basicTypes/Var.hs
</a>
</li>
<li class="file-stats">
<a href="#ed7e37ad33aa047f1f6bc74d375c38e6484b231c">
compiler/coreSyn/CoreArity.hs
</a>
</li>
<li class="file-stats">
<a href="#da5742c4b404a672740f0eef71683f5a8dd3818e">
compiler/coreSyn/CoreLint.hs
</a>
</li>
<li class="file-stats">
<a href="#c9f253bc92ffa226506febcfb5ef5e67536616f2">
compiler/coreSyn/CoreUnfold.hs
</a>
</li>
<li class="file-stats">
<a href="#4cebcede53127700de963abffccad9d336d74889">
compiler/deSugar/DsExpr.hs
</a>
</li>
<li class="file-stats">
<a href="#7f924eb82ea52b493e50fc467c301adb6a0eaf32">
compiler/hieFile/HieAst.hs
</a>
</li>
<li class="file-stats">
<a href="#cd87eb0344087ad60213d14d7abe8bf5ed82b93f">
compiler/hsSyn/HsExpr.hs
</a>
</li>
<li class="file-stats">
<a href="#3ec3774412294d7ceaaa0572f116dc7c911d3f6d">
compiler/hsSyn/HsExtension.hs
</a>
</li>
<li class="file-stats">
<a href="#033a4b0a0dd5b2de8e407e7ee840e7bd5d90a25e">
compiler/main/ErrUtils.hs
</a>
</li>
<li class="file-stats">
<a href="#092e98c57072740713901cf146f61fc634f8a065">
compiler/parser/Lexer.x
</a>
</li>
<li class="file-stats">
<a href="#a9d23eb447426d7f3469127262985af461dfad78">
compiler/parser/Parser.y
</a>
</li>
<li class="file-stats">
<a href="#f68eb03961d8e370e8d3f41bd51ea01fd168779e">
compiler/parser/RdrHsSyn.hs
</a>
</li>
<li class="file-stats">
<a href="#f39c3af3fb50116eacfc5f437ab61dbe27ab59ac">
compiler/rename/RnExpr.hs
</a>
</li>
<li class="file-stats">
<a href="#5d79081946c94bec01bbf2f1ece6597a963760cd">
compiler/simplCore/SimplMonad.hs
</a>
</li>
<li class="file-stats">
<a href="#32d53a69dcadfb969898a49221a1ff152ea0677a">
compiler/simplCore/SimplUtils.hs
</a>
</li>
<li class="file-stats">
<a href="#ea6c99f43a7d52025b4dfaf7a7822038a54a9a84">
compiler/stranal/DmdAnal.hs
</a>
</li>
<li class="file-stats">
<a href="#8459cd38c85420ab196f6823883c62b658b7edaa">
compiler/stranal/WorkWrap.hs
</a>
</li>
<li class="file-stats">
<a href="#fefba0bb63e2af077c91206052f9c20caa85d3c7">
compiler/stranal/WwLib.hs
</a>
</li>
<li class="file-stats">
<a href="#d2ddf5ce2d076f8584d9825af8ea0d7ea0a38813">
compiler/typecheck/TcRnTypes.hs
</a>
</li>
<li class="file-stats">
<a href="#40d93f06cdb95d1c98a6b3832d0153e59839d832">
docs/users_guide/glasgow_exts.rst
</a>
</li>
<li class="file-stats">
<a href="#af1d9e2647379d23697be69f8b7fc568ed0294c5">
docs/users_guide/using.rst
</a>
</li>
<li class="file-stats">
<a href="#fa7239cff7b4594c10815ff9efbb9bad180ce002">
<span class="new-file">
+
hadrian/ci.project
</span>
</a>
</li>
</ul>
<h5>The diff was not included because it is too large.</h5>
</div>
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