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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Simon Peyton Jones pushed to branch wip/T21851
at <a href="https://gitlab.haskell.org/ghc/ghc" style="color: #1068bf;">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
Commits:
</h4>
<ul>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/64a390d9c57b35edb6e7cf09b9324b43a3d08671" style="color: #1068bf;">64a390d9</a></strong>
<div>
<span>by Bryan Richter</span>
<i>at 2022-10-12T09:52:51+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Mark T7919 as fragile
On x86_64-linux, T7919 timed out ~30 times during July 2022.
And again ~30 times in September 2022.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/481467a5ceb07bb28bb6edb1569c86ff3cac315f" style="color: #1068bf;">481467a5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-12T08:08:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Don't hint inlining of appendToRunQueue
These hints have resulted in compile-time warnings due to failed
inlinings for quite some time. Moreover, it's quite unlikely that
inlining them is all that beneficial given that they are rather sizeable
functions.
Resolves #22280.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/819150893a9af7ee0770aba64b140bf1bc54957b" style="color: #1068bf;">81915089</a></strong>
<div>
<span>by Curran McConnell</span>
<i>at 2022-10-12T16:32:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>remove name shadowing
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/626652f7c172f307bd87afaee59c7f0e2825c55d" style="color: #1068bf;">626652f7</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2022-10-12T16:33:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>winio: do not re-translate input when handle is uncooked
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5172789a12dcca65574dc608364a7cbfdec2fe58" style="color: #1068bf;">5172789a</a></strong>
<div>
<span>by Charles Taylor</span>
<i>at 2022-10-12T16:33:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Unrestricted OverloadedLabels (#11671)
Implements GHC proposal:
https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0170-unrestricted-overloadedlabels.rst
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ce2939085e5b59513748ff73bc66161c09d69468" style="color: #1068bf;">ce293908</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-10-13T05:58:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a perf test for the generics code pattern from #21839.
This code showed a strong shift between compile time (got worse) and
run time (got a lot better) recently which is perfectly acceptable.
However it wasn't clear why the compile time regression was happening
initially so I'm adding this test to make it easier to track such changes
in the future.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/78ab7afe244a7617d600a6180d81d9dec657114d" style="color: #1068bf;">78ab7afe</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-13T05:58:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Consolidate initializer/finalizer handling
Here we extend our treatment of initializer/finalizer priorities to
include ELF and in so doing refactor things to share the implementation
with PEi386. As well, I fix a subtle misconception of the ordering
behavior for `.ctors`.
Fixes #21847.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/44692713c6fdfb1bf50a2480ca304e6498a0f3a3" style="color: #1068bf;">44692713</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-13T05:58:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Add support for .fini sections
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/beebf546c9ea818c9d5a61688bfee8f3b7dbeb9f" style="color: #1068bf;">beebf546</a></strong>
<div>
<span>by Simon Hengel</span>
<i>at 2022-10-13T05:59:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update phases.rst
(the name of the original source file is $1, not $2)</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eda6c05e65144b35de62c33d0fd5d35a417233ac" style="color: #1068bf;">eda6c05e</a></strong>
<div>
<span>by Finley McIlwaine</span>
<i>at 2022-10-13T06:00:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Clearer error msg for newtype GADTs with defaulted kind
When a newtype introduces GADT eq_specs due to a defaulted
RuntimeRep, we detect this and print the error message with
explicit kinds.
This also refactors newtype type checking to use the new
diagnostic infra.
Fixes #21447
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/43ab435afc01284c1fb7e500783703f580a55a90" style="color: #1068bf;">43ab435a</a></strong>
<div>
<span>by Pierre Le Marre</span>
<i>at 2022-10-14T07:45:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add standard Unicode case predicates isUpperCase and isLowerCase.
These predicates use the standard Unicode case properties and are more intuitive than isUpper and isLower.
Approved by CLC in https://github.com/haskell/core-libraries-committee/issues/90#issuecomment-1276649403.
Fixes #14589
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aec5a443bc45ca99cfeedc1777edb0aceca142cf" style="color: #1068bf;">aec5a443</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-10-14T07:46:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add type signatures in where-clause of Data.List.permutations
The type of interleave' is very much revealing, otherwise it's extremely tough to decipher.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee0deb8054da2a597fc5624469b4c44fd769ada2" style="color: #1068bf;">ee0deb80</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-14T18:29:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Use pthread_setname_np correctly on Darwin
As noted in #22206, pthread_setname_np on Darwin only supports
setting the name of the calling thread. Consequently we must introduce
a trampoline which first sets the thread name before entering the thread
entrypoint.</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8eff62a43cebbb21f00aeea138bcc343d8ac8f34" style="color: #1068bf;">8eff62a4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-14T18:29:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add test for #22282
This will complement mpickering's more general port of foundation's
numerical testsuite, providing a test for the specific case found
in #22282.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/62a550010ed94e1969c96150f2781854a0802766" style="color: #1068bf;">62a55001</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-14T18:29:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ncg/aarch64: Fix sub-word sign extension yet again
In adc7f108141a973b6dcb02a7836eed65d61230e8 we fixed a number of issues
to do with sign extension in the AArch64 NCG found by ghc/test-primops>.
However, this patch made a critical error, assuming that getSomeReg
would allocate a fresh register for the result of its evaluation.
However, this is not the case as `getSomeReg (CmmReg r) == r`.
Consequently, any mutation of the register returned by `getSomeReg` may
have unwanted side-effects on other expressions also mentioning `r`. In
the fix listed above, this manifested as the registers containing the
operands of binary arithmetic operations being incorrectly
sign-extended. This resulted in #22282.
Sadly, the rather simple structure of the tests generated
by `test-primops` meant that this particular case was not exercised.
Even more surprisingly, none of our testsuite caught this case.
Here we fix this by ensuring that intermediate sign extension is
performed in a fresh register.
Fixes #22282.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/54e41b164f79ad74c33f556fc82d042441ed3bfb" style="color: #1068bf;">54e41b16</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-10-15T18:09:24+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: ensure we are below maxHeapSize after returning megablocks
When the heap is heavily block fragmented the live byte size might be
low while the memory usage is high. We want to ensure that heap overflow
triggers in these cases.
We do so by checking that we can return enough megablocks to
under maxHeapSize at the end of GC.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/29bb90db7e0756cd7dda96d9a61c3ab0abe769c2" style="color: #1068bf;">29bb90db</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-10-15T18:09:24+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: trigger a major collection if megablock usage exceeds maxHeapSize
When the heap is suffering from block fragmentation, live bytes might be
low while megablock usage is high.
If megablock usage exceeds maxHeapSize, we want to trigger a major GC to
try to recover some memory otherwise we will die from a heapOverflow at
the end of the GC.
Fixes #21927
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4a4641ca2f2a157dab0fe2df5316f79ffb52c047" style="color: #1068bf;">4a4641ca</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-10-15T18:11:29+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add realease note for #21927
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c1e5719aa500cb9e0f2549eb9b9e2255038ac35d" style="color: #1068bf;">c1e5719a</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-10-17T11:58:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>DmdAnal: Look through unfoldings of DataCon wrappers (#22241)
Previously, the demand signature we computed upfront for a DataCon wrapper
lacked boxity information and was much less precise than the demand transformer
for the DataCon worker.
In this patch we adopt the solution to look through unfoldings of DataCon
wrappers during Demand Analysis, but still attach a demand signature for other
passes such as the Simplifier.
See `Note [DmdAnal for DataCon wrappers]` for more details.
Fixes #22241.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8c72411d9504963069fb1ae736a2470cb9ae1250" style="color: #1068bf;">8c72411d</a></strong>
<div>
<span>by Gergo ERDI</span>
<i>at 2022-10-17T19:20:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add `Enum (Down a)` instance that swaps `succ` and `pred`
See https://github.com/haskell/core-libraries-committee/issues/51 for
discussion. The key points driving the implementation are the following
two ideas:
* For the `Int` type, `comparing (complement @Int)` behaves exactly as
an order-swapping `compare @Int`.
* `enumFrom @(Down a)` can be implemented in terms of `enumFromThen @a`,
if only the corner case of starting at the very end is handled specially
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d80ad2f40f2092f14402351a6a3cb944039a57df" style="color: #1068bf;">d80ad2f4</a></strong>
<div>
<span>by Alan Zimmerman</span>
<i>at 2022-10-17T19:20:40-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update the check-exact infrastructure to match ghc-exactprint
GHC tests the exact print annotations using the contents of
utils/check-exact.
The same functionality is provided via
https://github.com/alanz/ghc-exactprint
The latter was updated to ensure it works with all of the files on
hackage when 9.2 was released, as well as updated to ensure users of
the library could work properly (apply-refact, retrie, etc).
This commit brings the changes from ghc-exactprint into
GHC/utils/check-exact, adapting for the changes to master.
Once it lands, it will form the basis for the 9.4 version of
ghc-exactprint.
See also discussion around this process at #21355
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/08ab5419286d2620f2e6762607bad03c5bcd29ad" style="color: #1068bf;">08ab5419</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-10-17T19:21:15-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid allocating intermediate lists for non recursive bindings.
We do so by having an explicit folding function that doesn't need to
allocate intermediate lists first.
Fixes #22196
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ff6275ef829873a70350c6d597e485bb84dd1bb1" style="color: #1068bf;">ff6275ef</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-10-17T19:21:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Testsuite: Add a new tables_next_to_code predicate.
And use it to avoid T21710a failing on non-tntc archs.
Fixes #22169
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/abb82f3892f8530dcaca1caae8a614b1faa591c3" style="color: #1068bf;">abb82f38</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-10-17T19:22:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>example rewrite</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/39beb8017ba64801f6573cf1a1a67e94fdb522ee" style="color: #1068bf;">39beb801</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-10-17T19:22:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>remove redirect</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0d9fb651768f0b88be0a564deebbbd2391104ab4" style="color: #1068bf;">0d9fb651</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-10-17T19:22:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>use heredoc</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0fa2d185b23eb08e2a2f2a4b7e40431c599e446d" style="color: #1068bf;">0fa2d185</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-10-17T19:23:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Fix typo when setting llvm_ways
Since 2014 llvm_ways has been set to [] so none of the tests which use
only_ways(llvm_ways) have worked as expected.
Hopefully the tests still pass with this typo fix!
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ced664a27247730925530d39c83b879969b68709" style="color: #1068bf;">ced664a2</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-10-17T19:23:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix T15155l not getting -fllvm
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0ac6042302219b162a23b85f637bcc8fa27fafaa" style="color: #1068bf;">0ac60423</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-10-18T03:34:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix GHCis interaction with tag inference.
I had assumed that wrappers were not inlined in interactive mode.
Meaning we would always execute the compiled wrapper which properly
takes care of upholding the strict field invariant.
This turned out to be wrong. So instead we now run tag inference even
when we generate bytecode. In that case only for correctness not
performance reasons although it will be still beneficial for runtime
in some cases.
I further fixed a bug where GHCi didn't tag nullary constructors
properly when used as arguments. Which caused segfaults when calling
into compiled functions which expect the strict field invariant to
be upheld.
Fixes #22042 and #21083
-------------------------
Metric Increase:
T4801
Metric Decrease:
T13035
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9ecd1ac03d9cd2eea8e2b50233a08fd3d9cca7c7" style="color: #1068bf;">9ecd1ac0</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-10-18T03:35:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make `Functor` a superclass of `TrieMap`, which lets us derive the `map` functions.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f60244d7b24a595e9eb68ee3254bbe52fc00fdb8" style="color: #1068bf;">f60244d7</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-18T03:36:15-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Bump minimum bootstrap GHC version
Fixes #22245
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ba4bd4a48223bc9b215cfda138a5de9f99c87cdf" style="color: #1068bf;">ba4bd4a4</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-10-18T03:36:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Build System: Remove out-of-date comment about make build system
Both make and hadrian interleave compilation of modules of different
modules and don't respect the package boundaries. Therefore I just
remove this comment which points out this "difference".
Fixes #22253
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cd14412ffd83854091f534f7007ba43ca3d4137e" style="color: #1068bf;">cd14412f</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-10-19T14:00:34+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fire RULES in the Specialiser
The Specialiser has, for some time, fires class-op RULES in the
specialiser itself: see
Note [Specialisation modulo dictionary selectors]
This MR beefs it up a bit, so that it fires /all/ RULES in the
specialiser, not just class-op rules. See
Note [Fire rules in the specialiser]
The result is a bit more specialisation; see test
simplCore/should_compile/T21851_2
This pushed me into a bit of refactoring. I made a new data types
GHC.Core.Rules.RuleEnv, which combines
- the several source of rules (local, home-package, external)
- the orphan-module dependencies
in a single record for `getRules` to consult. That drove a bunch of
follow-on refactoring, including allowing me to remove
cr_visible_orphan_mods from the CoreReader data type.
I moved some of the RuleBase/RuleEnv stuff into GHC.Core.Rule.
</pre>
</li>
</ul>
<h4 style="margin-top: 10px; margin-bottom: 10px;">30 changed files:</h4>
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<a href="#4fbb1c5f251c38fc01fcde693420ee6d02df7e45" style="color: #1068bf;">
compiler/GHC/Cmm/Dataflow/Label.hs
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compiler/GHC/CmmToAsm/AArch64/CodeGen.hs
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compiler/GHC/Core.hs
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compiler/GHC/Core/InstEnv.hs
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compiler/GHC/Core/Map/Expr.hs
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compiler/GHC/Core/Map/Type.hs
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compiler/GHC/Core/Opt/Exitify.hs
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compiler/GHC/Core/Opt/SetLevels.hs
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compiler/GHC/Core/Opt/Simplify/Monad.hs
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compiler/GHC/Core/Opt/Simplify/Utils.hs
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compiler/GHC/Core/Opt/SpecConstr.hs
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compiler/GHC/Core/Opt/Specialise.hs
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compiler/GHC/Core/Rules.hs
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compiler/GHC/Driver/Config/Core/Opt/Simplify.hs
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compiler/GHC/Driver/GenerateCgIPEStub.hs
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compiler/GHC/Driver/Main.hs
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compiler/GHC/Driver/Pipeline/Execute.hs
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compiler/GHC/Iface/Make.hs
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compiler/GHC/Stg/CSE.hs
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compiler/GHC/Stg/InferTags.hs
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