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<h3>
Matthew Pickering pushed to branch wip/ghc-debug_partial_tso_stack_decode
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/52114fa0f97805d4c4924bc3abce1a8b0fc7a5c6">52114fa0</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2020-11-16T11:48:47+01:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add Addr# atomic primops (#17751)
This reuses the codegen used for ByteArray#'s atomic primops.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8150f6546e6fd0006252e245d5697f13ffd8ce3e">8150f654</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2020-11-18T23:38:40-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">PmCheck: Print types of uncovered patterns (#18932)
In order to avoid confusion as in #18932, we display the type of the
match variables in the non-exhaustiveness warning, e.g.
```
T18932.hs:14:1: warning: [-Wincomplete-patterns]
Pattern match(es) are non-exhaustive
In an equation for ‘g’:
Patterns of type ‘T a’, ‘T a’, ‘T a’ not matched:
(MkT2 _) (MkT1 _) (MkT1 _)
(MkT2 _) (MkT1 _) (MkT2 _)
(MkT2 _) (MkT2 _) (MkT1 _)
(MkT2 _) (MkT2 _) (MkT2 _)
...
|
14 | g (MkT1 x) (MkT1 _) (MkT1 _) = x
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
```
It also allows us to omit the type signature on wildcard matches which
we previously showed in only some situations, particularly
`-XEmptyCase`.
Fixes #18932.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/165352a2d163537afb01a835bccc7cd0a667410a">165352a2</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2020-11-20T02:08:36-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Export indexError from GHC.Ix (#18579)
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b57845c3d80f5bed8f498f27fb7a318f2b2f8b2c">b57845c3</a></strong>
<div>
<span>by Kamil Dworakowski</span>
<i>at 2020-11-20T02:09:16-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Clarify interruptible FFI wrt masking state
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/321d1bd8a79ab39c3c9e8697fffb0107c43f83cf">321d1bd8</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2020-11-20T02:09:51-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix strictness signatures of `prefetchValue*#` primops
Their strictness signatures said the primops are strict in their first
argument, which is wrong: Handing it a thunk will prefetch the pointer
to the thunk, but not evaluate it. Hence not strict.
The regression test `T8256` actually tests for laziness in the first
argument, so GHC apparently never exploited the strictness signature.
See also https://gitlab.haskell.org/ghc/ghc/-/issues/8256#note_310867,
where this came up.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0aec78b6c97cee58ba20bfcb959f1369b80c4e4c">0aec78b6</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2020-11-20T02:09:51-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Demand: Interleave usage and strictness demands (#18903)
As outlined in #18903, interleaving usage and strictness demands not
only means a more compact demand representation, but also allows us to
express demands that we weren't easily able to express before.
Call demands are *relative* in the sense that a call demand `Cn(cd)`
on `g` says "`g` is called `n` times. *Whenever `g` is called*, the
result is used according to `cd`". Example from #18903:
```hs
h :: Int -> Int
h m =
let g :: Int -> (Int,Int)
g 1 = (m, 0)
g n = (2 * n, 2 `div` n)
{-# NOINLINE g #-}
in case m of
1 -> 0
2 -> snd (g m)
_ -> uncurry (+) (g m)
```
Without the interleaved representation, we would just get `L` for the
strictness demand on `g`. Now we are able to express that whenever
`g` is called, its second component is used strictly in denoting `g`
by `1C1(P(1P(U),SP(U)))`. This would allow Nested CPR to unbox the
division, for example.
Fixes #18903.
While fixing regressions, I also discovered and fixed #18957.
Metric Decrease:
T13253-spj
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3a55b3a2574f913d046f3a6f82db48d7f6df32e3">3a55b3a2</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2020-11-20T02:09:51-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Update user's guide entry on demand analysis and worker/wrapper
The demand signature notation has been undocumented for a long time.
The only source to understand it, apart from reading the `Outputable`
instance, has been an outdated wiki page.
Since the previous commits have reworked the demand lattice, I took
it as an opportunity to also write some documentation about notation.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fc963932018ccf5445613ec0932d726b51887769">fc963932</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2020-11-20T02:10:31-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Find hadrian location more reliably in cabal-install output
Fix #18944
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9f40cf6ca9fb24dbc55f7eae43e2b89aa12bf251">9f40cf6c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-20T02:11:07-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts/linker: Align bssSize to page size when mapping symbol extras
We place symbol_extras right after bss. We also need
to ensure that symbol_extras can be mprotect'd independently from the
rest of the image. To ensure this we round up the size of bss to a page
boundary, thus ensuring that symbol_extras is also page-aligned.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b739c319dd56fa2aabd8007cc200eafb3c7651a7">b739c319</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-20T02:11:43-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Add usage message to ci.sh
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/802e9180dd9a9a88c4e8869f0de1048e1edd6343">802e9180</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-20T02:11:43-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Add VERBOSE environment variable
And change the make build system's default behavior to V=0, greatly
reducing build log sizes.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2a8a979c24fe34a81a438ae179693ddaca12709f">2a8a979c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-21T01:13:26-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">users-guide: A bit of clean-up in profiling flag documentation
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/56804e33a05729f5a5340d3680ae2849e30a9e86">56804e33</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-21T01:13:26-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Refactor CountParserDeps
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/53ad67eacacde8fde452f1a323d5886183375182">53ad67ea</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-21T01:13:26-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Introduce -fprof-callers flag
This introducing a new compiler flag to provide a convenient way to
introduce profiler cost-centers on all occurrences of the named
identifier.
Closes #18566.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ecfd0278cb811c93853c176fe5df60222d1a8fb5">ecfd0278</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2020-11-21T01:14:09-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Move Plugins into HscEnv (#17957)
Loaded plugins have nothing to do in DynFlags so this patch moves them
into HscEnv (session state).
"DynFlags plugins" become "Driver plugins" to still be able to register
static plugins.
Bump haddock submodule
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/72f2257c792e6178933f12ee3401939da11584b6">72f2257c</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2020-11-21T01:14:09-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Don't initialize plugins in the Core2Core pipeline
Some plugins can be added via TH (cf addCorePlugin). Initialize them in
the driver instead of in the Core2Core pipeline.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ddbeeb3c7dc7a2781801cc0e6539d2b4b0e97a20">ddbeeb3c</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2020-11-21T01:14:44-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add regression test for #10504
This issue was fixed at some point between GHC 8.0 and 8.2. Let's add a
regression test to ensure that it stays fixed.
Fixes #10504.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a4a6dc2a90e28c34054d0cfd4c6fd962bf4adc2e">a4a6dc2a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-21T01:15:21-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">dwarf: Apply info table offset consistently
Previously we failed to apply the info table offset to the aranges and
DIEs, meaning that we often failed to unwind in gdb. For some reason
this only seemed to manifest in the RTS's Cmm closures. Nevertheless,
now we can unwind completely up to `main`
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/69bfbc216c2278c9796aa999c7815c19c12b0f2c">69bfbc21</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-21T01:15:56-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Disable stripping when debug information is enabled
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7e93ae8b2257c17d5ae5ef7832db723e897c8e8b">7e93ae8b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-21T13:13:29-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts: Post ticky entry counts to the eventlog
We currently only post the entry counters, not the other global
counters as in my experience the former are more useful. We use the heap
profiler's census period to decide when to dump.
Also spruces up the documentation surrounding ticky-ticky a bit.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bc9c3916df96a20c58b91fd383a0da77ec83c4b0">bc9c3916</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T06:28:10-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Implement -ddump-c-backend argument
To dump output of the C backend.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/901bc2208a115e0f8313b3aa9abc76fd05509aaa">901bc220</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T12:39:02-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Bump time submodule to 1.11.1
Also bumps directory, Cabal, hpc, time, and unix submodules.
Closes #18847.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/92c0afbf592e71dae3c80cec09b1596df50ff8a9">92c0afbf</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T12:39:38-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Dump STG when ticky is enabled
This changes the "ticky" modifier to enable dumping of final STG as this
is generally needed to make sense of the ticky profiles.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d23fef68415ce6587f77e9530cb0571bb90b31cc">d23fef68</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T12:39:38-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Introduce notion of flavour transformers
This extends Hadrian's notion of "flavour", as described in #18942.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/179d0becd2ddfa216f7b221df9fc520a352fdbe7">179d0bec</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T12:39:38-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Add a viaLlvmBackend modifier
Note that this also slightly changes the semantics of these flavours as
we only use LLVM for >= stage1 builds.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d4d95e51a463e539fceb1c6f191e84adaa337e3b">d4d95e51</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T12:39:38-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Add profiled_ghc and no_dynamic_ghc modifiers
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6815603f271484766425ff2e37043b78da2d073c">6815603f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T12:39:38-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Drop redundant flavour definitions
Drop the profiled, LLVM, and ThreadSanitizer flavour definitions as
these can now be realized with flavour transformers.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f88f43398217a5f4c2d326555e21fb1417a21db2">f88f4339</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-24T02:43:20-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts: Flush eventlog buffers from flushEventLog
As noted in #18043, flushTrace failed flush anything beyond the writer.
This means that a significant amount of data sitting in capability-local
event buffers may never get flushed, despite the users' pleads for us to
flush.
Fix this by making flushEventLog flush all of the event buffers before
flushing the writer.
Fixes #18043.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7c03cc5010999d0f0f9dfc549984023b3a1f2c8d">7c03cc50</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-24T02:43:55-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Run LLVM job on appropriately-labelled MRs
Namely, those marked with the ~"LLVM backend" label
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9b95d815d718ce671e9e87b8a2eb0534ed5688dd">9b95d815</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-24T02:43:55-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Run LLVM builds on Debian 10
The current Debian 9 image doesn't provide LLVM 7.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2ed3e6c0f179c06828712832d1176519cdfa82a6">2ed3e6c0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-24T02:43:55-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">CmmToLlvm: Declare signature for memcmp
Otherwise `opt` fails with:
error: use of undefined value '@memcmp$def'
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/be5d74caab64abf9d986fc7290f62731db7e73e7">be5d74ca</a></strong>
<div>
<span>by Moritz Angermann</span>
<i>at 2020-11-26T16:00:32-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">[Sized Cmm] properly retain sizes.
This replaces all Word<N> = W<N># Word# and Int<N> = I<N># Int# with
Word<N> = W<N># Word<N># and Int<N> = I<N># Int<N>#, thus providing us
with properly sized primitives in the codegenerator instead of pretending
they are all full machine words.
This came up when implementing darwinpcs for arm64. The darwinpcs reqires
us to pack function argugments in excess of registers on the stack. While
most procedure call standards (pcs) assume arguments are just passed in
8 byte slots; and thus the caller does not know the exact signature to make
the call, darwinpcs requires us to adhere to the prototype, and thus have
the correct sizes. If we specify CInt in the FFI call, it should correspond
to the C int, and not just be Word sized, when it's only half the size.
This does change the expected output of T16402 but the new result is no
less correct as it eliminates the narrowing (instead of the `and` as was
previously done).
Bumps the array, bytestring, text, and binary submodules.
Co-Authored-By: Ben Gamari <ben@well-typed.com>
Metric Increase:
T13701
T14697
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a84e53f978341135355c5c82cd7af2ae2efa5e72">a84e53f9</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-11-26T16:00:32-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">RTS: Fix failed inlining of copy_tag.
On windows using gcc-10 gcc failed to inline copy_tag into evacuate.
To fix this we now set the always_inline attribute for the various
copy* functions in Evac.c. The main motivation here is not the
overhead of the function call, but rather that this allows the code
to "specialize" for the size of the closure we copy which is often
known at compile time.
An earlier commit also tried to avoid evacuate_large inlining. But
didn't quite succeed. So I also marked evacuate_large as noinline.
Fixes #12416
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cdbd16f5450998ad27f376e97b11d3e2873b95f9">cdbd16f5</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2020-11-26T16:00:33-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix toArgRep to support 64-bit reps on all systems
[This is @Ericson2314 writing a commit message for @hsyl20's patch.]
(Progress towards #11953, #17377, #17375)
`Int64Rep` and `Word64Rep` are currently broken on 64-bit systems. This
is because they should use "native arg rep" but instead use "large arg
rep" as they do on 32-bit systems, which is either a non-concept or a
128-bit rep depending on one's vantage point.
Now, these reps currently aren't used during 64-bit compilation, so the
brokenness isn't observed, but I don't think that constitutes reasons
not to fix it. Firstly, the linked issues there is a clearly expressed
desire to use explicit-bitwidth constructs in more places. Secondly, per
[1], there are other bugs that *do* manifest from not threading
explicit-bitwidth information all the way through the compilation
pipeline. One can therefore view this as one piece of the larger effort
to do that, improve ergnomics, and squash remaining bugs.
Also, this is needed for !3658. I could just merge this as part of that,
but I'm keen on merging fixes "as they are ready" so the fixes that
aren't ready are isolated and easier to debug.
[1]: https://mail.haskell.org/pipermail/ghc-devs/2020-October/019332.html
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a9378e690d79ea5fce18aad96c76c8eb34f2ebba">a9378e69</a></strong>
<div>
<span>by Tim Barnes</span>
<i>at 2020-11-26T16:00:34-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Set dynamic users-guide TOC spacing (fixes #18554)
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/86a59d930fa6ab0889792c1d67b1d29ba1edec1f">86a59d93</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-26T16:00:34-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts: Use RTS_LIKELY in CHECK
Most compilers probably already infer that
`barf` diverges but it nevertheless doesn't
hurt to be explicit.</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5757e82b9344a3b012cf6d71c347ad727e57f8a3">5757e82b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2020-11-26T16:00:35-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Remove special case for GHC.ByteCode.Instr
This was added in
https://github.com/nomeata/ghc-heap-view/commit/34935206e51b9c86902481d84d2f368a6fd93423
GHC.ByteCode.Instr.BreakInfo no longer exists so the special case is dead code.
Any check like this can be easily dealt with in client code.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d9c8b5b472b6e7c4bd5a2b7eeda2bef711db9239">d9c8b5b4</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2020-11-26T16:00:35-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Split Up getClosureDataFromHeapRep
Motivation
1. Don't enforce the repeated decoding of an info table, when the client
can cache it (ghc-debug)
2. Allow the constructor information decoding to be overridden, this
casues segfaults in ghc-debug
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3e3555cc9c2a9f5246895f151259fd2a81621f38">3e3555cc</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-11-26T16:00:35-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">RegAlloc: Add missing raPlatformfield to RegAllocStatsSpill
Fixes #18994
Co-Author: Benjamin Maurer <maurer.benjamin@gmail.com>
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a1a75aa9be2c133dd1372a08eeb6a92c31688df7">a1a75aa9</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-27T06:20:41-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts: Allocate MBlocks with MAP_TOP_DOWN on Windows
As noted in #18991, we would previously allocate heap in low memory.
Due to this the linker, which typically *needs* low memory, would end up
competing with the heap. In longer builds we end up running out of
low memory entirely, leading to linking failures.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f04840cf047f81a0c14eab54dbf4f151db89c2d7">f04840cf</a></strong>
<div>
<span>by David Eichmann</span>
<i>at 2020-11-27T09:07:36-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">ghc-heap: partial TSO/STACK decoding
Co-authored-by: Sven Tennie <sven.tennie@gmail.com>
Co-authored-by: Matthew Pickering <matthewtpickering@gmail.com>
Co-authored-by: Ben Gamari <bgamari.foss@gmail.com>
</pre>
</li>
</ul>
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.gitlab-ci.yml
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compiler/GHC.hs
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compiler/GHC/Builtin/Types.hs
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compiler/GHC/ByteCode/Asm.hs
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compiler/GHC/Core/Opt/Monad.hs
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compiler/GHC/Core/Opt/Pipeline.hs
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compiler/GHC/Core/Opt/SetLevels.hs
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compiler/GHC/Core/Opt/SpecConstr.hs
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