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<h3>
Ben Gamari pushed to branch wip/winio
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/9ad072b487fe528947f817b0417933a6cd1941b7">9ad072b4</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2020-07-13T14:52:49-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use dumpStyle when printing inlinings
This just makes debug-printing consistent,
and more informative.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e78c4efb8735eb97f17e7b4ca35e305b0766f78a">e78c4efb</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2020-07-13T14:52:49-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Comments only
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7ccb760b1a8034b28171d7540712fd195f65d1fd">7ccb760b</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2020-07-13T14:52:49-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Reduce result discount in conSize
Ticket #18282 showed that the result discount given by conSize
was massively too large. This patch reduces that discount to
a constant 10, which just balances the cost of the constructor
application itself.
Note [Constructor size and result discount] elaborates, as
does the ticket #18282.
Reducing result discount reduces inlining, which affects perf. I
found that I could increase the unfoldingUseThrehold from 80 to 90 in
compensation; in combination with the result discount change I get
these overall nofib numbers:
Program Size Allocs Runtime Elapsed TotalMem
--------------------------------------------------------------------------------
boyer -0.2% +5.4% -3.2% -3.4% 0.0%
cichelli -0.1% +5.9% -11.2% -11.7% 0.0%
compress2 -0.2% +9.6% -6.0% -6.8% 0.0%
cryptarithm2 -0.1% -3.9% -6.0% -5.7% 0.0%
gamteb -0.2% +2.6% -13.8% -14.4% 0.0%
genfft -0.1% -1.6% -29.5% -29.9% 0.0%
gg -0.0% -2.2% -17.2% -17.8% -20.0%
life -0.1% -2.2% -62.3% -63.4% 0.0%
mate +0.0% +1.4% -5.1% -5.1% -14.3%
parser -0.2% -2.1% +7.4% +6.7% 0.0%
primetest -0.2% -12.8% -14.3% -14.2% 0.0%
puzzle -0.2% +2.1% -10.0% -10.4% 0.0%
rsa -0.2% -11.7% -3.7% -3.8% 0.0%
simple -0.2% +2.8% -36.7% -38.3% -2.2%
wheel-sieve2 -0.1% -19.2% -48.8% -49.2% -42.9%
--------------------------------------------------------------------------------
Min -0.4% -19.2% -62.3% -63.4% -42.9%
Max +0.3% +9.6% +7.4% +11.0% +16.7%
Geometric Mean -0.1% -0.3% -17.6% -18.0% -0.7%
I'm ok with these numbers, remembering that this change removes
an *exponential* increase in code size in some in-the-wild cases.
I investigated compress2. The difference is entirely caused by this
function no longer inlining
WriteRoutines.$woutputCodes
= \ (w :: [CodeEvent]) ->
let result_s1Sr
= case WriteRoutines.outputCodes_$s$woutput w 0# 0# 8# 9# of
(# ww1, ww2 #) -> (ww1, ww2)
in (# case result_s1Sr of (x, _) ->
map @Int @Char WriteRoutines.outputCodes1 x
, case result_s1Sr of { (_, y) -> y } #)
It was right on the cusp before, driven by the excessive result
discount. Too bad!
Happily, the compiler/perf tests show a number of improvements:
T12227 compiler bytes-alloc -6.6%
T12545 compiler bytes-alloc -4.7%
T13056 compiler bytes-alloc -3.3%
T15263 runtime bytes-alloc -13.1%
T17499 runtime bytes-alloc -14.3%
T3294 compiler bytes-alloc -1.1%
T5030 compiler bytes-alloc -11.7%
T9872a compiler bytes-alloc -2.0%
T9872b compiler bytes-alloc -1.2%
T9872c compiler bytes-alloc -1.5%
Metric Decrease:
T12227
T12545
T13056
T15263
T17499
T3294
T5030
T9872a
T9872b
T9872c
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f0b671ee8a65913891c07f157b21d77d6c63036">7f0b671e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-07-13T14:52:49-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Widen acceptance threshold on T5837
This test is positively tiny and consequently the bytes allocated
measurement will be relatively noisy. Consequently I have seen this
fail spuriously quite often.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/118e1c3da622f17c67b4e0fbc12ed7c7084055dc">118e1c3d</a></strong>
<div>
<span>by Alp Mestanogullari</span>
<i>at 2020-07-14T21:30:52-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">compiler: re-engineer the treatment of rebindable if
Executing on the plan described in #17582, this patch changes the way if expressions
are handled in the compiler in the presence of rebindable syntax. We get rid of the
SyntaxExpr field of HsIf and instead, when rebindable syntax is on, we rewrite the HsIf
node to the appropriate sequence of applications of the local `ifThenElse` function.
In order to be able to report good error messages, with expressions as they were
written by the user (and not as desugared by the renamer), we make use of TTG
extensions to extend GhcRn expression ASTs with an `HsExpansion` construct, which
keeps track of a source (GhcPs) expression and the desugared (GhcRn) expression that
it gives rise to. This way, we can typecheck the latter while reporting the former in
error messages.
In order to discard the error context lines that arise from typechecking the desugared
expressions (because they talk about expressions that the user has not written), we
carefully give a special treatment to the nodes fabricated by this new renaming-time
transformation when typechecking them. See Note [Rebindable syntax and HsExpansion]
for more details. The note also includes a recipe to apply the same treatment to
other rebindable constructs.
Tests 'rebindable11' and 'rebindable12' have been added to make sure we report
identical error messages as before this patch under various circumstances.
We also now disable rebindable syntax when processing untyped TH quotes, as per
the discussion in #18102 and document the interaction of rebindable syntax and
Template Haskell, both in Note [Template Haskell quotes and Rebindable Syntax]
and in the user guide, adding a test to make sure that we do not regress in
that regard.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/64c774b043a2d9be3b98e445990c795f070dab3f">64c774b0</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-14T21:31:27-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Explain why keeping DynFlags in AnalEnv saves allocation.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/254245d01e3c1d4f9072abc4372fd3fb0a6ece9f">254245d0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-07-14T21:32:03-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">docs/users-guide: Update default -funfolding-use-threshold value
This was changed in 3d2991f8 but I neglected to update the
documentation. Fixes #18419.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4c259f86938f4016f4bd4fde7a300fa83591036f">4c259f86</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-14T21:32:41-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Escape backslashes in json profiling reports properly.
I also took the liberty to do away the fixed buffer size for escaping.
Using a fixed size here can only lead to issues down the line.
Fixes #18438.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2379722438cb551210c4899119ade05989c17166">23797224</a></strong>
<div>
<span>by Sergei Trofimovich</span>
<i>at 2020-07-14T21:33:19-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">.gitlab: re-enable integer-simple substitute (BIGNUM_BACKEND)
Recently build system migrated from INTEGER_LIBRARY to BIGNUM_BACKEND.
But gitlab CI was never updated. Let's enable BIGNUM_BACKEND=native.
Bug: https://gitlab.haskell.org/ghc/ghc/-/issues/18437
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e0db878a789e58c2a1aba2e73d42857008174124">e0db878a</a></strong>
<div>
<span>by Sergei Trofimovich</span>
<i>at 2020-07-14T21:33:19-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">ghc-bignum: bring in sync .hs-boot files with module declarations
Before this change `BIGNUM_BACKEND=native` build was failing as:
```
libraries/ghc-bignum/src/GHC/Num/BigNat/Native.hs:708:16: error:
* Variable not in scope: naturalFromBigNat# :: WordArray# -> t
* Perhaps you meant one of these:
`naturalFromBigNat' (imported from GHC.Num.Natural),
`naturalToBigNat' (imported from GHC.Num.Natural)
|
708 | m' = naturalFromBigNat# m
|
```
This happens because `.hs-boot` files are slightly out of date.
This change brings in data and function types in sync.
Bug: https://gitlab.haskell.org/ghc/ghc/-/issues/18437
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c9f65c369a60467dcaf2b37d5f41f00565b4fe25">c9f65c36</a></strong>
<div>
<span>by Stefan Schulze Frielinghaus</span>
<i>at 2020-07-14T21:33:57-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts/Disassembler.c: Use FMT_HexWord for printing values in hex format
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/58ae62ebb5750e4dfbdb171efde8e3064b7afea8">58ae62eb</a></strong>
<div>
<span>by Matthias Andreas Benkard</span>
<i>at 2020-07-14T21:34:35-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">macOS: Load frameworks without stating them first.
macOS Big Sur makes the following change to how frameworks are shipped
with the OS:
> New in macOS Big Sur 11 beta, the system ships with a built-in
> dynamic linker cache of all system-provided libraries. As part of
> this change, copies of dynamic libraries are no longer present on
> the filesystem. Code that attempts to check for dynamic library
> presence by looking for a file at a path or enumerating a directory
> will fail. Instead, check for library presence by attempting to
> dlopen() the path, which will correctly check for the library in the
> cache. (62986286)
https://developer.apple.com/documentation/macos-release-notes/macos-big-sur-11-beta-release-notes/
Therefore, the previous method of checking whether a library exists
before attempting to load it makes GHC.Runtime.Linker.loadFramework
fail to find frameworks installed at /System/Library/Frameworks.
GHC.Runtime.Linker.loadFramework now opportunistically loads the
framework libraries without checking for their existence first,
failing only if all attempts to load a given framework from any of the
various possible locations fail.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cdc4a6b0f71bbd16a11f23e455b28c0c15720b38">cdc4a6b0</a></strong>
<div>
<span>by Matthias Andreas Benkard</span>
<i>at 2020-07-14T21:34:35-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">loadFramework: Output the errors collected in all loading attempts.
With the recent change away from first finding and then loading a
framework, loadFramework had no way of communicating the real reason
why loadDLL failed if it was any reason other than the framework
missing from the file system. It now collects all loading attempt
errors into a list and concatenates them into a string to return to
the caller.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/51dbfa52df483822b99bb191d2ffc0943954e1d3">51dbfa52</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-07-15T04:05:34-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">StgToCmm: Use CmmRegOff smart constructor
Previously we would generate expressions of the form
`CmmRegOff BaseReg 0`. This should do no harm (and really should be
handled by the NCG anyways) but it's better to just generate a plain
`CmmReg`.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ae11bdfd98a10266bfc7de9e16b500be220307ac">ae11bdfd</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-07-15T04:06:08-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Add regression test for #17744
Test due to @monoidal.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f01bb58bb6d1a37416da3733999e25abc8873ad3">f01bb58b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-07-15T10:07:02-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Bump Cabal submodule
Updates a variety of tests as Cabal is now more strict about Cabal file
form.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/56e898b58d4cb89e487e82ac291811aec9122140">56e898b5</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:11-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Drop Windows Vista support, require Windows 7
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/734357c553f04e8b27562766fb58201f3e33100e">734357c5</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:11-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Update Windows FileSystem wrapper utilities.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/92d5db4486a3fb1fbca6aa80bf2621dd805a4337">92d5db44</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:11-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Use SlimReaderLocks and ConditonalVariables provided by the OS instead of emulated ones
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/750dde43abd2cfaf955fe17e57878bdfb741fd68">750dde43</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:11-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Small linker comment and ifdef cleanups
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/703ddf535067ecd3cfebce6d6b5848056aa23e46">703ddf53</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:11-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Flush event logs eagerly.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7dfb6e2cf0e891b715ea510c4cfc3a4c460c15ba">7dfb6e2c</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:11-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Refactor Buffer structures to be able to track async operations
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3bdad47443d72ca9134524ab6fb18662ce4b44f4">3bdad474</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:12-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Implement new Console API
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eb0685f0eba1e010097f8c2996075bcb545fa936">eb0685f0</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:12-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Add IOPort synchronization primitive
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b7f926241922d085406fdd7bc66ff7b9927fc119">b7f92624</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:12-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Add new io-manager cmdline options
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/90aa8ccd1a438a671e89c40a20d6b110d91cd7c5">90aa8ccd</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:12-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Init Windows console Codepage to UTF-8.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2e75228fd22801964bc27ebb80c881e4ad8329fe">2e75228f</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:12-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Add unsafeSplat to GHC.Event.Array
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d9c964721d1d6900216748f7b68ddf7d8af1d80b">d9c96472</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:12-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Add size and iterate to GHC.Event.IntTable.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b574f72fbc59caa110df99ae5313a4323fdaaeb8">b574f72f</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:12-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Switch Testsuite to test winio by default
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b53894a62265a0d5b5c29705d47f21a8f147148c">b53894a6</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:12-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Multiple refactorings and support changes.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2a9f74c5535b3ac7210b9a4e7e1d040435110462">2a9f74c5</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:12-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: core threaded I/O manager
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9c8c8220a8d84cb7e8f81308a3e6a1485a5dcdcc">9c8c8220</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: core non-threaded I/O manager
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6c8793dd0032e0d882445734a90118a02cff5461">6c8793dd</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix a scheduler bug with the threaded-runtime.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ac3ec2386644d00cd6fdee375393677d1a3fee7c">ac3ec238</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Relaxing some constraints in io-manager.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/46b352ef444920c8f0440c5f0c394c0d23601df8">46b352ef</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix issues with non-threaded I/O manager after split.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/db5207b2665d76a1b810d1294269593ca439cfc3">db5207b2</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Remove some barf statements that are a bit strict.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d2c1d3d3ebb7857aebffd85823fc4cb079384671">d2c1d3d3</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Expand comments describing non-threaded loop
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2dd815084e9a5821dc36b4eaf0eba75b432865c8">2dd81508</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: fix FileSize unstat-able handles
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/94b0ce972ff03ff74f607968afef36b4479bc7af">94b0ce97</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Implement new tempfile routines for winio
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e6e5e74db0a6be0c59f859adad667f22b5e3dcec">e6e5e74d</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix input truncation when reading from handle.
This was caused by not upholding the read buffer invariant
that bufR == bufL == 0 for empty read buffers.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5bab211eb78dece14a6a0eab57057009d89bf102">5bab211e</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix output truncation for writes larger than buffer size
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/19b4b95ae0dfe945ee52fed60ebd27ace53d9971">19b4b95a</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Rewrite bufWrite.
I think it's far easier to follow the code now.
It's also correct now as I had still missed a spot
where we didn't update the offset.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c025dc0a31bbd1f258de3763a5eea1f510a3c09b">c025dc0a</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix offset set by bufReadEmpty.
bufReadEmpty returns the bytes read *including* content that
was already buffered,
But for calculating the offset we only care about the number
of bytes read into the new buffer.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a0745334bdd9f2a17c30a3376486b804d8bd59ab">a0745334</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Clean up code surrounding IOPort primitives.
According to phyx these should only be read and written once per
object. Not neccesarily in that order.
To strengthen that guarantee the primitives will now throw an
exception if we violate this invariant.
As a consequence we can eliminate some code from their primops.
In particular code dealing with multiple queued readers/writers
now simply checks the invariant and throws an exception if it
was violated. That is in contrast to mvars which will do things
like wake up all readers, queue multi writers etc.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e04d6ad7ca62ff5a47756c3dd2f076f5876a38c2">e04d6ad7</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix multi threaded threadDelay and a few other small changes.
Multithreaded threadDelay suffered from a race condition
based on the ioManagerStatus. Since the status isn't needed
for WIO I removed it completely.
This resulted in a light refactoring, as consequence we will always
wake up the IO manager using interruptSystemManager, which uses
`postQueuedCompletionStatus` internally.
I also added a few comments which hopefully makes the code easier to
dive into for the next person diving in.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2801861091d6552fdd7853d7720da2ad3dbcf0e8">28018610</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">wionio: Make IO subsystem check a no-op on non-windows platforms.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0387643dc00fe46a0ed87ab3ef8c906ec6205002">0387643d</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Set handle offset when opening files in Append mode.
Otherwise we would truncate the file.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e088175637aba4cd9044c47fd43c97ba44cca9ab">e0881756</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:13-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Remove debug event log trace
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1423e25e35dfdcae8ea06dce55e7f71c27f2661e">1423e25e</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix sqrt and openFile009 test cases
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9e3e992dc7a444bef85ac3fe35e1ced432d953d2">9e3e992d</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Allow hp2ps to build with -DDEBUG
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9e707b4b1452db18fced40796980851af0e3eadc">9e707b4b</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Update output of T9681 since we now actually run it.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ef15cfaaa4e5305d569c4d1dc6e8feaac4aa732a">ef15cfaa</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: A few more improvements to the IOPort primitives.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b52555e319849ec34c16a153b5e03282d585304c">b52555e3</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix expected tempfiles output.
Tempfiles now works properly on windows, as such we can
delete the win32 specific output.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/be254ea3f5bc803c681d9c061c76840672bfe1cf">be254ea3</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Assign thread labels to IOManager threads.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/efe745863d49857aacb939e0f594a03791770557">efe74586</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Properly check for the tso of an incall to be zero.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f3dbf47f4039ad2848b7ba410d51d72ecd72e11c">f3dbf47f</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Mark FD instances as unsupported under WINIO.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/017675ab35f1f8fad6e81c5c7a98e17e44d9b4e2">017675ab</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix threadDelay maxBound invocations.
Instead of letting the ns timer overflow now clamp it at
(maxBound :: Word64) ns. That still gives a few hundred
years.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/05165f61f69f8e438d1ee57a82097f7cb22f4e11">05165f61</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Add comments/cleanup an import in base
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2b9b1b793fa9c3dbb529e7fd9ac75bd72d6bb491">2b9b1b79</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Mark outstanding_service_requests volatile.
As far as I know C(99) gives no guarantees for code like
bool condition;
...
while(condition)
sleep();
that condition will be updated if it's changed by another thread.
So we are explicit here and mark it as volatile, this will force
a reload from memory on each iteration.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/47eb652905874fe51ea2aab4893a05663fbf1dec">47eb6529</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Make last_event a local variable
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/06a7e5c0ca3b39064cfd19624e418152271b7b78">06a7e5c0</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Add comment about thread safety of processCompletion.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/69942bd9a19966c9f59ebf104c5522554f678887">69942bd9</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: nonthreaded: Create io processing threads in main thread.
We now set a flag in the IO thread. The scheduler when looking for work
will check the flag and create/queue threads accordingly.
We used to create these in the IO thread. This improved performance
but caused frequent segfaults. Thread creation/allocation is only safe to
do if nothing currently accesses the storeagemanager. However without
locks in the non-threaded runtime this can't be guaranteed.
This shouldn't change performance all too much.
In the past we had:
* IO: Create/Queue thread.
* Scheduler: Runs a few times. Eventually picks up IO processing thread.
Now it's:
* IO: Set flag to queue thread.
* Scheduler: Pick up flag, if set create/queue thread. Eventually picks up IO processing thread.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8474ed1061bb9c0845282e53cca22addf29b83af">8474ed10</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Add an exported isHeapAlloced function to the RTS
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f3098c354d9ffd211517a340a0822b58c250d99b">f3098c35</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Queue IO processing threads at the front of the queue.
This will unblock the IO thread sooner hopefully leading to higher
throughput in some situations.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b5e0793bacea6d45e275688d6aea7d0369b460e7">b5e0793b</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: ThreadDelay001: Use higher resolution timer.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/63f8bcc4596097653026954b9d6ac304c775f4d3">63f8bcc4</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Update T9681 output, disable T4808 on windows.
T4808 tests functionality of the FD interface which won't be supported
under WINIO.
T9681 just has it's expected output tweaked.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/24fd01e43836723d38c0ebb8972e7ca34239c43e">24fd01e4</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Wake io manager once per registerTimeout.
Which is implicitly done in editTimeouts, so need to wake it
up twice.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/71bd74be64cd7e650872e4e865fc9b9de41cd362">71bd74be</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Update placeholder comment with actual function name.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3af6274faca047650efa413870fd673c90d689dd">3af6274f</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Always lock win32 event queue
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/81bf51fa588f69c5157fac29d16b96ea79606cde">81bf51fa</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Display thread labels when tracing scheduler events.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9dcb46d29a8f762f08cf534cca56d7b80a1153ed">9dcb46d2</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Refactor non-threaded runner thread and scheduler interface.
Only use a single communication point (registerAlertableWait) to inform
the C side aobut both timeouts to use as well as outstanding requests.
Also queue a haskell processing thread after each return from alertable
waits. This way there is no risk of us missing a timer event.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3c813de3cf3077beefa0a89dae6b6dc78ce953cc">3c813de3</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Remove outstanding_requests from runner.
We used a variable to keep track of situations where we got
entries from the IO port, but all of them had already been
canceled. While we can avoid some work that way this case
seems quite rare.
So we give up on tracking this and instead always assume at
least one of the returned entries is valid.
If that's not the case no harm is done, we just perform some
additional work. But it makes the runner easier to reason about.
In particular we don't need to care if another thread modifies
oustanding_requests after we return from waiting on the IO Port.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/db4e229375e713442f1b320af3bc5d18b9414135">db4e2293</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Various fixes related to rebase and testdriver
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/abab0ab13c7ce1e82281b7288f257c1db67cc55c">abab0ab1</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix rebase artifacts
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2bf6f425c4c0a28a50886ade1aac408a29fe162f">2bf6f425</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Rename unsafeSplat to unsafeCopyFromBuffer
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2efbbb02e55bbc3c901793478318d13ecddebef5">2efbbb02</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Remove unused size/iterate operations from IntTable
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/396ef1500f8382fc2515d6470fb8096a790c0fe3">396ef150</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Detect running IO Backend via peeking at RtsConfig
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f50b6ae04991bde8a4cba7a63af43feb2fc6bd1b">f50b6ae0</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: update temp path so GCC etc can handle it.
Also fix PIPE support, clean up error casting, fix memory leaks
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/da48d0e8a74530295a0cd9ed854ff84e70cb8478">da48d0e8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Minor comments/renamings
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/928f64620c7f09234c11c18b61a6701314a7db01">928f6462</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Checking if an error code indicates completion is now a function.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/555ec3a0588aa26d6e3c47aa4f1bf09b5dba4e94">555ec3a0</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Small refactor in withOverlappedEx
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ad8c6b546b7274a071c0d281a1f1cbd520b78381">ad8c6b54</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: A few comments and commented out dbxIO
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c6b96ba4e4d648dd73be7b250b575b558ba4567c">c6b96ba4</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Don't drop buffer offset in byteView/cwcharView
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3d404cce1e528ef541d5aa4cdc5496b0963b0ef7">3d404cce</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: revert BHandle changes.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7bd1d16df42ed779fc64c9a4ec8ec1a2029ff36a">7bd1d16d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix imports
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ff47b0a371b9fbe9ae1be08103658fd6971c095">5ff47b0a</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: update ghc-cabal to handle new Cabal submodule bump
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/564e5c7f3663f83a1bf04e2d8c1d25449ea5a757">564e5c7f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Only compile sources on Windows
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c129914981decf9aa9a7a4f114429f2fb618b7ef">c1299149</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Actually return Nothing on EOF for non-blocking read
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9df13b9618a50d2c672b6dcdbbef3c8d13ab19d9">9df13b96</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Deduplicate logic in encodeMultiByte[Raw]IO.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/72d37ac3d82ee97177a877c39cd7535687978630">72d37ac3</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Deduplicate openFile logic
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/584e50d510afc4b046a40efb6250ba0a8cdcdffc">584e50d5</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: fix -werror issue in encoding file
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/51fbb022263bf8775c3a5dbb6f494623282022e0">51fbb022</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Don't mention windows specific functions when building on Linux.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c1577409dcaad7944157164b1fb516f105606a60">c1577409</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: add a note about file locking in the RTS.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0db9dbf12a7e677f2ecd9d19ee587e8c87dacdcf">0db9dbf1</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Add version to @since annotation
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3ba075108cf3bcfa30faf2ae8f64822b582d95af">3ba07510</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Rename GHC.Conc.IOCP -> GHC.Conc.WinIO
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/084e303db873a1c90466c9cc5d42f1cdc7f83af2">084e303d</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Expand GHC.Conc.POSIX description
It now explains users may not use these functions when
using the old IO manager.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/537ee1cba13b41ddab094baffd234ae2e165d870">537ee1cb</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix potential spaceleak in __createUUIDTempFileErrNo
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2f8a500969158e3dd5d9412b4e9465cc385f424d">2f8a5009</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Remove redundant -Wno-missing-signatures pragmas
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4722b04ac26e86a8c050445759ab506634389c96">4722b04a</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Make it explicit that we only create one IO manager
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/25eb478dc59605e85b35737e8b3d985b95111cf0">25eb478d</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Note why we don't use blocking waits.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f053588160e330063dfe9be94334026022320c95">f0535881</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Remove commented out pragma
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b0bab0ec0ca8b59584f0fea91fd7ee70a1e3cb0a">b0bab0ec</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Remove redundant buffer write in Handle/Text.hs:bufReadEmpty
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ba18e20a55d34d8afe162248d17d4e27f905de46">ba18e20a</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Rename SmartHandles to StdHandles
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a050d144a48e53e6294f9db026977e249ff51c4c">a050d144</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: add comment stating failure behaviour for getUniqueFileInfo.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/634e2a57202b4dcf1458750119a1a5d968dddad8">634e2a57</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Update IOPort haddocks.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8a2333b3065160b4aa5b6dd113e75edda5c86847">8a2333b3</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Add a note cross reference
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/14052f317e80836566163572580e8c8b72ed1afe">14052f31</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Name Haskell/OS I/O Manager explicitly in Note
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d154bbe013f90a26c9b10dc75e52592c2de8a188">d154bbe0</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Expand BlockedOnIOCompletion description.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/14c8b0a62b1d3d4785432368764ab99ebcda9005">14c8b0a6</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Remove historical todos
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/542004acdead2544d182a5f1394743861fe38f5f">542004ac</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Update note, remove debugging pragma.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f4411c81ab4a394c957b0f2ce6da4b18f8203b02">f4411c81</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: flushCharReadBuffer shouldn't need to adjust offsets.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/006102d93fd1cc31136116729d99fd720ccf940f">006102d9</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Remove obsolete comment about cond. variables
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1812a2e992c7cc61fd687ca265a444536c0a00be">1812a2e9</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:17-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: fix initial linux validate build
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2f9c2f721b485b657a666b53de4412b5cbe1133a">2f9c2f72</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix ThreadDelay001 CPP
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eec25db986cdf496976b9dc94516835e49e43e17">eec25db9</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix openFile009 merge conflict leftover
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b186dbc200e132d1c8a85637bd1c0ae694cd891f">b186dbc2</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Accept T9681 output.
GHC now reports String instead of [Char].
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/69da3095b8ce713edbbbfc4f57ac2512de5835ef">69da3095</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix cabal006 after upgrading cabal submodule
Demand cabal 2.0 syntax instead of >= 1.20 as required by newer cabal versions.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3177416b2bc0b87438da5e9e4e87e9a0293fc721">3177416b</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Fix stderr output for ghci/linking/dyn tests.
We used to filter rtsopts, i opted to instead just accept the warning of it having no effect.
This works both for -rtsopts, as well as -with-rtsopts which winio adds.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/30502b521f7a181dbd380a503f16582d3b17dffd">30502b52</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Adjust T15261b stdout for --io-manager flag.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fe83623cf4c31d6ca441c275e45426c1cb530142">fe83623c</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Adjust T5435_dyn_asm stderr
The warning about rtsopts having no consequences is expected.
So accept new stderr.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/208833c1ad4ad8cd579b29a012c66d7d252b68ff">208833c1</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Also accept T7037 stderr
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1c5b024a91247728df302041dce6d1b161155d50">1c5b024a</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: fix cabal04 by filtering rts args
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/85b8f8e805346402c8f02a8da96e8e469bc66041">85b8f8e8</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: fix cabal01 by accepting expected stderr
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e093bc0bcba850a26d694d8d92ce251fade0e6d6">e093bc0b</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: fix safePkg01 by accepting expected stderr
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e06c93cde0f8f81ea67d3bac25183dd5bd325770">e06c93cd</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: fix T5435_dyn_gcc by accepting expected stderr
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/251b396238ddfacefc4938d541b59e6ebd93548e">251b3962</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: fix tempfiles test on linux
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5e00db58f039fc30fdef634907618e8eb05b8410">5e00db58</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Accept accepted stderr for T3807
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e1b10e9f4371546d15a20fef82f3baad0a07e791">e1b10e9f</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Accept accepted stderr for linker_unload
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/72b4541cbb306aaa9ce40855acf3aac093dae175">72b4541c</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Accept accepted stderr for linker_unload_multiple_objs
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/29fe8fe3d513a2741f038a626a64e86e4f132e16">29fe8fe3</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:18-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: clarify wording on conditional variables.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2e46072fda1fe19069357c1e18bd2da275905d06">2e46072f</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:19-04:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: clarify comment on cooked mode.
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<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/926c6147ad193fe82683be3d050c60edc8382a5d">926c6147</a></strong>
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<span>by Tamar Christina</span>
<i>at 2020-07-15T10:07:19-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: update lockfile signature and remove mistaken symbol in rts.
</pre>
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<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/867843e0d2d7edcaa1906c8b7fffb89a0a4e92eb">867843e0</a></strong>
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<span>by Ben Gamari</span>
<i>at 2020-07-15T10:07:19-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Add winio and winio_threaded ways
Reverts many of the testsuite changes
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<h4>30 changed files:</h4>
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<a href="#587d266bb27a4dc3022bbed44dfa19849df3044c">
.gitlab-ci.yml
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<a href="#157f7634c25bc6366cb7c9c9edb48e819dce38db">
.gitlab/ci.sh
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<a href="#836efb6e25a091dcb4ff8e1dbb2f0be6a5cbf14c">
Makefile
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<a href="#0887cf39c5cdf9cf8d6758f410d7dab3023c0d77">
compiler/GHC/Builtin/Names.hs
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compiler/GHC/Builtin/RebindableNames.hs
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compiler/GHC/Builtin/Types/Prim.hs
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compiler/GHC/Builtin/primops.txt.pp
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compiler/GHC/Core/Opt/DmdAnal.hs
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compiler/GHC/Core/Opt/Simplify.hs
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compiler/GHC/Core/Unfold.hs
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compiler/GHC/Driver/Pipeline.hs
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compiler/GHC/Driver/Session.hs
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compiler/GHC/Hs/Expr.hs
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compiler/GHC/Hs/Instances.hs
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compiler/GHC/Hs/Utils.hs
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compiler/GHC/HsToCore/Coverage.hs
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compiler/GHC/HsToCore/Expr.hs
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compiler/GHC/HsToCore/Match.hs
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compiler/GHC/HsToCore/Quote.hs
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compiler/GHC/Iface/Ext/Ast.hs
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compiler/GHC/Rename/Env.hs
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compiler/GHC/Rename/Expr.hs
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compiler/GHC/Rename/Splice.hs
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compiler/GHC/Runtime/Linker.hs
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compiler/GHC/StgToCmm/CgUtils.hs
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compiler/GHC/StgToCmm/Prim.hs
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compiler/GHC/SysTools/Info.hs
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compiler/GHC/Tc/Gen/Expr.hs
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compiler/GHC/Tc/Solver/Flatten.hs
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compiler/GHC/Tc/Types.hs
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<h5>The diff was not included because it is too large.</h5>
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