[Git][ghc/ghc][wip/ghc-9.4.5-backports] 54 commits: Add missing parenthesizeHsType in cvtSigTypeKind

Zubin (@wz1000) gitlab at gitlab.haskell.org
Tue Apr 11 04:55:51 UTC 2023



Zubin pushed to branch wip/ghc-9.4.5-backports at Glasgow Haskell Compiler / GHC


Commits:
e745dd7a by Ryan Scott at 2023-04-11T10:25:20+05:30
Add missing parenthesizeHsType in cvtSigTypeKind

We need to ensure that the output of `cvtSigTypeKind` is parenthesized (at
precedence `sigPrec`) so that any type signatures with an outermost, explicit
kind signature can parse correctly.

Fixes #22784.

(cherry picked from commit 4efee43db5090aac4dde1293357bdb548ae71c24)

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8c888464 by Cheng Shao at 2023-04-11T10:25:20+05:30
Fix typo in recent darwin tests fix

Corrects a typo in !9647. Otherwise T18623 will still fail on darwin
and stall other people's work.

(cherry picked from commit c45a5fffef2c76efbf5d3a009c3f6d0244a63f0d)

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710f9c26 by Ben Gamari at 2023-04-11T10:25:20+05:30
nativeGen/AArch64: Fix debugging output

Previously various panics would rely on a half-written Show
instance, leading to very unhelpful errors. Fix this.

See #22798.

(cherry picked from commit be417a47c7695998dea0adc05489a7b8838a78b6)

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6ab22d43 by Ben Gamari at 2023-04-11T10:25:20+05:30
nativeGen: Teach graph-colouring allocator that x18 is unusable

Previously trivColourable for AArch64 claimed that at 18 registers were
trivially-colourable. This is incorrect as x18 is reserved by the platform on
AArch64/Darwin.

See #22798.

(cherry picked from commit 30989d137b8f3a8fddbfd116e04b48f23c24f86c)

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b813498b by Ben Gamari at 2023-04-11T10:25:21+05:30
nativeGen/AArch64: Fix graph-colouring allocator

Previously various `Instr` queries used by the graph-colouring allocator
failed to handle a few pseudo-instructions. This manifested in compiler
panicks while compiling `SHA`, which uses `-fregs-graph`.

Fixes #22798.

(cherry picked from commit 7566fd9de38c67360c090f828923d41587af519c)

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ca94c890 by Ben Gamari at 2023-04-11T10:25:21+05:30
testsuite: Add regression test for #22798

(cherry picked from commit 2cb500a5ee1a31dfe1a2cdd71f175442026eb082)

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0f52a00a by Zubin Duggal at 2023-04-11T10:25:21+05:30
ncg/aarch64: Handle MULTILINE_COMMENT identically as COMMENTs

Commit 7566fd9de38c67360c090f828923d41587af519c with the fix for #22798 was
incomplete as it failed to handle MULTILINE_COMMENT pseudo-instructions, and
didn't completly fix the compiler panics when compiling with `-fregs-graph`.

Fixes #23002

(cherry picked from commit 68dd64ffa6f164dce4ac010b9f5e1adfefeae7c7)

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4363dfbb by Ben Gamari at 2023-04-11T10:25:21+05:30
nativeGen: Disable asm-shortcutting on Darwin

Asm-shortcutting may produce relative references to symbols defined in
other compilation units. This is not something that MachO relocations
support (see #21972). For this reason we disable the optimisation on
Darwin. We do so without a warning since this flag is enabled by `-O2`.

Another way to address this issue would be to rather implement a
PLT-relocatable jump-table strategy. However, this would only benefit
Darwin and does not seem worth the effort.

Closes #21972.

(cherry picked from commit 8bed166bb79445f90015757fd5baac69a7b835df)

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a3dc6493 by Zubin Duggal at 2023-04-11T10:25:21+05:30
bindist configure: Fail if find not found (#22691)

(cherry picked from commit c9967d137cff83c7688e26f87a8b5e196a75ec93)

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a48e7d22 by Ben Gamari at 2023-04-11T10:25:21+05:30
nativeGen/X86: MFENCE is unnecessary for release semantics

In #22764 a user noticed that a program implementing a simple atomic
counter via an STRef regressed significantly due to the introduction of
necessary atomic operations in the MutVar# primops (#22468). This
regression was caused by a bug in the NCG, which emitted an unnecessary
MFENCE instruction for a release-ordered atomic write. MFENCE is rather
only needed to achieve sequentially consistent ordering.

Fixes #22764.

(cherry picked from commit 35a118001149eb8f5bab989be997757baa70bfec)

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e54ea044 by sheaf at 2023-04-11T10:25:21+05:30
Fix tyvar scoping within class SPECIALISE pragmas

Type variables from class/instance headers scope over class/instance
method type signatures, but DO NOT scope over the type signatures in
SPECIALISE and SPECIALISE instance pragmas.

The logic in GHC.Rename.Bind.rnMethodBinds correctly accounted for
SPECIALISE inline pragmas, but forgot to apply the same treatment
to method SPECIALISE pragmas, which lead to a Core Lint failure with
an out-of-scope type variable. This patch makes sure we apply the same
logic for both cases.

Fixes #22913

(cherry picked from commit 9ee761bf02cdd11c955454a222c85971d95dce11)

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fc25c7d9 by Ben Gamari at 2023-04-11T10:25:21+05:30
rts: Statically assert alignment of Capability

In #22965 we noticed that changes in the size of `Capability` can result
in unsound behavior due to the `align` pragma claiming an alignment
which we don't in practice observe. Avoid this by statically asserting
that the size is a multiple of the alignment.

(cherry picked from commit db83f8bbf2e0ac68df675dea6b716fb7c19c649a)

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71e0e737 by Ben Gamari at 2023-04-11T10:25:21+05:30
rts: Introduce getNumCapabilities

And ensure accesses to n_capabilities are atomic (although with relaxed
ordering). This is necessary as RTS API callers may concurrently call
into the RTS without holding a capability.

(cherry picked from commit 70999283156f527c5aea6dee57a3d14989a9903a)

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96ad9eca by Ben Gamari at 2023-04-11T10:25:21+05:30
rts: Introduce stgMallocAlignedBytes

(cherry picked from commit 5f7a4a6d8311d2faa9c90b2b0c4431dd4427839d)

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80442dbc by Ben Gamari at 2023-04-11T10:25:21+05:30
rts: Correctly align Capability allocations

Previously we failed to tell the C allocator that `Capability`s needed
to be aligned, resulting in #22965.

Fixes #22965.
Fixes #22975.

(cherry picked from commit 8a6f745d963fc9b79c7b1e4b477f4fc724233655)

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1e81391f by Ben Gamari at 2023-04-11T10:25:21+05:30
rts: Drop no-alignment special case for Windows

For reasons that aren't clear, we were previously not giving Capability
the same favorable alignment on Windows that we provided on other
platforms. Fix this.

(cherry picked from commit 5464c73f192f76e75160e8992fe9720d943ae611)

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d30eb293 by Andreas Klebinger at 2023-04-11T10:25:21+05:30
base: Correct @since annotation for FP<->Integral bit cast operations.

Fixes #22708

(cherry picked from commit 9296660b131d42f1b1f9c421040c5746d5c56989)

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13f5c21a by Matthew Pickering at 2023-04-11T10:25:21+05:30
constant folding: Correct type of decodeDouble_Int64 rule

The first argument is Int64# unconditionally, so we better produce
something of that type. This fixes a core lint error found in the ad
package.

Fixes #23019

(cherry picked from commit a86aae8b562c12bb3cee8dcae5156b647f1a74ad)

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bdeed7ce by Sylvain Henry at 2023-04-11T10:25:21+05:30
linker: fix linking with aligned sections (#23066)

Take section alignment into account instead of assuming 16 bytes (which
is wrong when the section requires 32 bytes, cf #23066).

(cherry picked from commit 4158722a6cff5d19e228356c525946b6c4b83396)

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b23d34bc by Ben Gamari at 2023-04-11T10:25:21+05:30
nativeGen/AArch64: Fix bitmask immediate predicate

Previously the predicate for determining whether a logical instruction
operand could be encoded as a bitmask immediate was far too
conservative. This meant that, e.g., pointer untagged required five
instructions whereas it should only require one.

Fixes #23030.

(cherry picked from commit b8d783d24b9a617ad1e3038abeb75d322703ef65)

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1f06ac89 by Matthew Pickering at 2023-04-11T10:25:21+05:30
compiler: Add -f[no-]split-sections flags

Here we add a `-fsplit-sections` flag which may some day replace
`-split-sections`. This has the advantage of automatically providing a
`-fno-split-sections` flag, which is useful for our packaging because we
enable `-split-sections` by default but want to disable it in certain
configurations.

(cherry picked from commit 32255d055b768d51deb9d1f49681164cf7492011)

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9d3c2637 by Matthew Pickering at 2023-04-11T10:25:21+05:30
hadrian: Add test:all_deps to build just testsuite dependencies

Fixes #22534

(cherry picked from commit 15bee1239877a4629a245fe457f06e5f96668423)

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c814672c by Matthew Pickering at 2023-04-11T10:25:21+05:30
hadrian: Add no_split_sections tranformer

This transformer reverts the effect of `split_sections`, which we intend
to use for platforms which don't support split sections.

In order to achieve this we have to modify the implemntation of the
split_sections transformer to store whether we are enabling
split_sections directly in the `Flavour` definition. This is because
otherwise there's no convenient way to turn off split_sections due to
having to pass additional linker scripts when merging objects.

(cherry picked from commit fec6638e2468c78f136f2363d8b3239a9bfd4f91)

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66910db2 by Matthew Pickering at 2023-04-11T10:25:21+05:30
ci: Build all test dependencies with in-tree compiler

This means that these executables will honour flavour transformers such
as "werror".

Fixes #22555

(cherry picked from commit 53a6ae7a8f819d1105aa190dc9cce215cdbcc6dc)

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b54a606b by Matthew Pickering at 2023-04-11T10:25:22+05:30
hadrian: Document using GHC environment variable to select boot compiler

Fixes #22340

(cherry picked from commit 32e264c1a11e6356bb045371b87a3736df19e792)

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690d4496 by Matthew Pickering at 2023-04-11T10:25:22+05:30
packaging: Build perf builds with -split-sections

In 8f71d958 the make build system was made to use split-sections on
linux systems but it appears this logic never made it to hadrian.
There is the split_sections flavour transformer but this doesn't appear
to be used for perf builds on linux.

This is disbled on deb9 and windows due to #21670

Closes #21135

(cherry picked from commit be9dd9b03479070ba6387c251541f4569392c4bb)

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3ac79fd5 by Matthew Pickering at 2023-04-11T10:25:22+05:30
hadrian bindist: Install manpages to share/man/man1/ghc.1

When the installation makefile was copied over the manpages were no
longer installed in the correct place. Now we install it into share/man/man1/ghc.1
as the make build system did.

Fixes #22371

(cherry picked from commit 32b32d7fbc5544ad6c435a1ea26e6353ec567a9b)

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7cde34db by Matthew Pickering at 2023-04-11T10:25:22+05:30
Fix recompilation checking for multiple home units

The key part of this change is to store a UnitId in the
`UsageHomeModule` and `UsageHomeModuleInterface`.

* Fine-grained dependency tracking is used if the dependency comes from
  any home unit.
* We actually look up the right module when checking whether we need to
  recompile in the `UsageHomeModuleInterface` case.

These scenarios are both checked by the new tests (
multipleHomeUnits_recomp and multipleHomeUnits_recomp_th )

Fixes #22675

(cherry picked from commit 1d1dd3fbfafdb9705076d4c587d5cf47e33b7640)

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64f36e9a by Matthew Pickering at 2023-04-11T10:25:22+05:30
Augment target filepath by working directory when checking if module satisfies target

This fixes a spurious warning in -Wmissing-home-modules.

This is a simple oversight where when looking for the target in the
first place we augment the search by the -working-directory flag but
then fail to do so when checking this warning.

Fixes #22676

(cherry picked from commit 7bfb30f92f5e21a8aca58068dc970040130433c6)

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d8dde0c9 by Matthew Pickering at 2023-04-11T10:25:22+05:30
Use NodeKey rather than ModuleName in pruneCache

The `pruneCache` function assumes that the list of `CachedInfo` all have unique `ModuleName`, this is not true:

* In normal compilation, the same module name can appear for a file and it's boot file.
* In multiple home unit compilation the same ModuleName can appear in different units

The fix is to use a `NodeKey` as the actual key for the interfaces which includes `ModuleName`, `IsBoot` and `UnitId`.

Fixes #22677

(cherry picked from commit 69500dd4a6dc81fa6fee6f24f0fe08a07b6112fc)

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5a36d3c7 by Matthew Pickering at 2023-04-11T10:25:22+05:30
Recompilation checking: Don't try to find artefacts for Interactive & hs-boot combo

In interactive mode we don't produce any linkables for hs-boot files. So
we also need to not going looking for them when we check to see if we
have all the right objects needed for recompilation.

Ticket #22669

(cherry picked from commit 336b2b1c8628b1317de46078e049b529205f2129)

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88ec30d7 by Matthew Pickering at 2023-04-11T10:25:22+05:30
Don't write o-boot files in Interactive mode

We should not be producing object files when in interactive mode but we
still produced the dummy o-boot files. These never made it into a
`Linkable` but then confused the recompilation checker.

Fixes #22669

(cherry picked from commit 6469fea7c78408db679898168a8e9c50c8c7c5ce)

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3644ad46 by Matthew Pickering at 2023-04-11T10:25:22+05:30
Improve driver diagnostic messages by including UnitId in message

Currently the driver diagnostics don't give any indication about which unit they correspond to.

For example `-Wmissing-home-modules` can fire multiple times for each different home unit and gives no indication about which unit it's actually reporting about.

Perhaps a longer term fix is to generalise the providence information away from a SrcSpan so that these kind of whole project errors can be reported with an accurate provenance. For now we can just include the `UnitId` in the error message.

Fixes #22678

(cherry picked from commit 06cc0a9529f2fe0dfa40d9966a52a982653bfcb9)

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ee6c2611 by Matthew Pickering at 2023-04-11T10:25:22+05:30
Key ModSummary cache by UnitId as well as FilePath

Multiple units can refer to the same files without any problem. Just
another assumption which needs to be updated when we may have multiple
home units.

However, there is the invariant that within each unit each file only
maps to one module, so as long as we also key the cache by UnitId then
we are all good.

This led to some confusing behaviour in GHCi when reloading,
multipleHomeUnits_shared distils the essence of what can go wrong.

Fixes #22679

(cherry picked from commit 4fe9eaff11ccf1fe185de2918aef4f96fd200c72)

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76975c78 by Matthew Pickering at 2023-04-11T10:25:22+05:30
Finder: Look in current unit before looking in any home package dependencies

In order to preserve existing behaviour it's important to look within the current component before consideirng a module might come from an external component.

This already happened by accident in `downsweep`, (because roots are used to repopulated the cache) but in the `Finder` the logic was the wrong way around.

Fixes #22680

-------------------------
Metric Decrease:
    MultiComponentModules
    MultiComponentModulesRecomp
-------------------------p

(cherry picked from commit ada29f5ca5a567b69713f08feac9ee4f247de117)

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245c0393 by Matthew Pickering at 2023-04-11T10:25:22+05:30
Debug: Print full NodeKey when pretty printing ModuleGraphNode

This is helpful when debugging multiple component issues.

(cherry picked from commit be701cc64f0ff78aa50bcd7293d8692dc1ba6c85)

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a1d6453b by Simon Peyton Jones at 2023-04-11T10:25:22+05:30
Add a missing checkEscapingKind

Ticket #22743 pointed out that there is a missing check,
for type-inferred bindings, that the inferred type doesn't
have an escaping kind.

The fix is easy.

(cherry picked from commit 496607fdb77baf12e2fe263104ba5d0d700eee3b)

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67624a36 by Matthew Pickering at 2023-04-11T10:25:22+05:30
Only store Name in FunRhs rather than Id with knot-tied fields

All the issues here have been caused by #18758.
The goal of the ticket is to be able to talk about things like
`LTyClDecl GhcTc`. In the case of HsMatchContext,
the correct "context" is whatever we want, and in fact storing just a
`Name` is sufficient and correct context, even if the rest of the AST is
storing typechecker Ids.

So this reverts (#20415, !5579) which intended to get closed to #18758 but
didn't really and introduced a few subtle bugs.

Printing of an error message in #22695 would just hang, because we would
attempt to print the `Id` in debug mode to assertain whether it was
empty or not. Printing the Name is fine for the error message.

Another consequence is that when `-dppr-debug` was enabled the compiler would
hang because the debug printing of the Id would try and print fields
which were not populated yet.

This also led to 32070e6c2e1b4b7c32530a9566fe14543791f9a6 having to add
a workaround for the `checkArgs` function which was probably a very
similar bug to #22695.

Fixes #22695

(cherry picked from commit ac39e8e97fbb69e4a786c1c29d6e477e7944f998)

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45378246 by Matthew Pickering at 2023-04-11T10:25:22+05:30
Store dehydrated data structures in CgModBreaks

This fixes a tricky leak in GHCi where we were retaining old copies of
HscEnvs when reloading. If not all modules were recompiled then these
hydrated fields in break points would retain a reference to the old
HscEnv which could double memory usage.

Fixes #22530

(cherry picked from commit 1262d3f8c03799a04d3c5fcf33d4d4db715ca9a1)

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e539b84f by Matthew Pickering at 2023-04-11T10:25:22+05:30
Force more in NFData Name instance

Doesn't force the lazy `OccName` field (#19619) which is already known
as a really bad source of leaks.

When we slam the hammer storing Names on disk (in interface files or the
like), all this should be forced as otherwise a `Name` can easily retain
an `Id` and hence the entire world.

Fixes #22833

(cherry picked from commit e27eb80cc7e0c82e07fbd8d9ae8112d9070c4355)

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bdf921ff by Matthew Pickering at 2023-04-11T10:25:22+05:30
Force OccName in tidyTopName

This occname has just been derived from an `Id`, so need to force it
promptly so we can release the Id back to the world.

Another symptom of the bug caused by #19619

(cherry picked from commit 3d004d5a961fbbbe11da1050b725468a970bee4b)

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0c776daf by Matthew Pickering at 2023-04-11T10:25:22+05:30
Strict fields in ModNodeKey (otherwise retains HomeModInfo)

Towards #22530

(cherry picked from commit f2a0fea09a88693d876fb891ea7c8c97373c4aa6)

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c266c03f by Krzysztof Gogolewski at 2023-04-11T10:25:23+05:30
Fix unification with oversaturated type families

unify_ty was incorrectly saying that F x y ~ T x are surely apart,
where F x y is an oversaturated type family and T x is a tyconapp.
As a result, the simplifier dropped a live case alternative (#23134).

(cherry picked from commit 7c16f3be6e1ac92f87d752f12ad6c6e7b7fd6207)

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f7bcfb63 by Simon Peyton Jones at 2023-04-11T10:25:23+05:30
Be more careful in GHC.Tc.Solver.Interact.solveOneFromTheOther

We were failing to account for the cc_pend_sc flag in this
important function, with the result that we expanded superclasses
forever.

Fixes #22516.

(cherry picked from commit a3a8e9e968ff9b10c6785d53a5f1c8fcef6db72b)

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76f6cbde by sheaf at 2023-04-11T10:25:23+05:30
Hadrian: merge archives even in stage 0

We now always merge .a archives when ar supports -L.
This change is necessary in order to bootstrap GHC using GHC 9.4
on Windows, as nested archives aren't supported.
Not doing so triggered bug #21990 when trying to use the Win32
package, with errors such as:

  Not a x86_64 PE+ file.
  Unknown COFF 4 type in getHeaderInfo.

  ld.lld: error: undefined symbol: Win32zm2zi12zi0zi0_SystemziWin32ziConsoleziCtrlHandler_withConsoleCtrlHandler1_info

We have to be careful about which ar is meant: in stage 0, the check
should be done on the system ar (system-ar in system.config).

(cherry picked from commit 545ff490144ed3ddd596d2a0c01b0a16b5528f63)

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b3c26479 by Sylvain Henry at 2023-04-11T10:25:23+05:30
Hadrian: correctly detect AR at-file support

Stage0's ar may not support at-files. Take it into account.

Found while cross-compiling from Darwin to Windows.

(cherry picked from commit e987e345c807035e4637ca3eae227ae501e16c42)

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a305fcc0 by Sylvain Henry at 2023-04-11T10:25:23+05:30
Hadrian: fix Windows cross-compilation

Decision to build either unix or Win32 package must be stage specific
for cross-compilation to be supported.

(cherry picked from commit 48131ee2d8ba7074a4c2763a32c12df105305a75)

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327eb579 by Sylvain Henry at 2023-04-11T10:25:23+05:30
Fix RTS build on Windows

This change fixes a cross-compilation issue from ArchLinux to Windows
because these symbols weren't found.

(cherry picked from commit 288fa0179a2f54e4594afe184eac71cc85c46643)

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fc65f7a2 by Sylvain Henry at 2023-04-11T10:25:23+05:30
configure: support "windows" as an OS

(cherry picked from commit 2fdf22aebda2307d86872c792633d1856d666c9b)

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70837db9 by Ben Gamari at 2023-04-11T10:25:23+05:30
rts: Drop racy assertion

0e274c39bf836d5bb846f5fa08649c75f85326ac added an assertion in
`dirty_MUT_VAR` checking that the MUT_VAR being dirtied was clean.
However, this isn't necessarily the case since another thread may have
raced us to dirty the object.

(cherry picked from commit b3eacd64fb36724ed6c5d2d24a81211a161abef1)

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09207fa3 by Ben Gamari at 2023-04-11T10:25:23+05:30
configure: Fix escaping of `$tooldir`

In !9547 I introduced `$tooldir` directories into GHC's default link and
compilation flags to ensure that our C toolchain finds its own headers
and libraries before others on the system. However, the patch was subtly
wrong in the escaping of `$tooldir`. Fix this.

Fixes #22561.

(cherry picked from commit 9ffd5d57a7cc19bcd6ea0139b00c77639566ba82)

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5050bec0 by Ben Gamari at 2023-04-11T10:25:23+05:30
Bump ghc-tarballs to fix #22497

It turns out that gmp 6.2.1 uses the platform-reserved `x18` register on
AArch64/Darwin. This was fixed in upstream changeset 18164:5f32dbc41afc,
which was merged in 2020. Here I backport this patch although I do hope
that a new release is forthcoming soon.

Bumps gmp-tarballs submodule.

Fixes #22497.

(cherry picked from commit f891a442046d8a5ebf4d4777847880ce06752b18)

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642e8667 by Ben Gamari at 2023-04-11T10:25:23+05:30
Bump gmp-tarballs submodule

This backports the upstream fix for CVE-2021-43618, fixing #22789.

(cherry picked from commit b13c6ea5d4b64841164f8cc58d6c6f3de390f2ed)

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738f68e3 by Li-yao Xia at 2023-04-11T10:25:23+05:30
base: Move changelog entry to its place

(cherry picked from commit 11de324aae17794c8753a8f7cb50c4140785fe27)

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30 changed files:

- .gitlab-ci.yml
- .gitlab/ci.sh
- .gitlab/gen_ci.hs
- .gitlab/jobs.yaml
- compiler/GHC/ByteCode/Types.hs
- compiler/GHC/CmmToAsm.hs
- compiler/GHC/CmmToAsm/AArch64/CodeGen.hs
- compiler/GHC/CmmToAsm/AArch64/Instr.hs
- compiler/GHC/CmmToAsm/Reg/Graph/TrivColorable.hs
- compiler/GHC/CmmToAsm/X86/CodeGen.hs
- compiler/GHC/Core/Opt/ConstantFold.hs
- compiler/GHC/Core/Type.hs
- compiler/GHC/Core/Unify.hs
- compiler/GHC/CoreToIface.hs
- compiler/GHC/Driver/Errors/Ppr.hs
- compiler/GHC/Driver/Errors/Types.hs
- compiler/GHC/Driver/Main.hs
- compiler/GHC/Driver/Make.hs
- compiler/GHC/Driver/Pipeline/Execute.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Hs/Utils.hs
- compiler/GHC/HsToCore/Usage.hs
- compiler/GHC/Iface/Ext/Ast.hs
- compiler/GHC/Iface/Load.hs
- compiler/GHC/Iface/Recomp.hs
- compiler/GHC/Iface/Tidy.hs
- compiler/GHC/IfaceToCore.hs
- compiler/GHC/Rename/Bind.hs
- compiler/GHC/Runtime/Eval.hs
- compiler/GHC/StgToByteCode.hs


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/6732aabec26243a50ad6c3a9b55addcaa079a3a9...738f68e3aa5a45d5d374d343f8b43a65779fe558

-- 
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/6732aabec26243a50ad6c3a9b55addcaa079a3a9...738f68e3aa5a45d5d374d343f8b43a65779fe558
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