[Git][ghc/ghc][wip/int-index/decl-invis-binders] 33 commits: Remove JavaScriptFFI from --supported-extensions for non-JS targets (#11214)
Vladislav Zavialov (@int-index)
gitlab at gitlab.haskell.org
Sat Jun 3 20:43:41 UTC 2023
Vladislav Zavialov pushed to branch wip/int-index/decl-invis-binders at Glasgow Haskell Compiler / GHC
Commits:
0350b186 by Josh Meredith at 2023-05-29T12:46:27+00:00
Remove JavaScriptFFI from --supported-extensions for non-JS targets (#11214)
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b4816919 by Matthew Pickering at 2023-05-30T17:07:43-04:00
testsuite: Pass -kb16k -kc128k for performance tests
Setting a larger stack chunk size gives a greater protection
from stack thrashing (where the repeated overflow/underflow allocates a lot of
stack chunks which sigificantly impact allocations). This
stabilises some tests against differences cause by more things being
pushed onto the stack.
The performance tests are generally testing work done by the compiler,
using allocation as a proxy, so removing/stabilising the allocations due
to the stack gives us more stable tests which are also more sensitive
to actual changes in compiler performance.
The tests which increase are ones where we compile a lot of modules, and
for each module we spawn a thread to compile the module in. Therefore
increasing these numbers has a multiplying effect on these tests because
there are many more stacks which we can increase in size.
The most significant improvements though are cases such as T8095 which
reduce significantly in allocations (30%). This isn't a performance
improvement really but just helps stabilise the test against this
threshold set by the defaults.
Fixes #23439
-------------------------
Metric Decrease:
InstanceMatching
T14683
T8095
T9872b_defer
T9872d
T9961
hie002
T19695
T3064
Metric Increase:
MultiLayerModules
T13701
T14697
-------------------------
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6629f1c5 by Ben Gamari at 2023-05-30T17:08:20-04:00
Move via-C flags into GHC
These were previously hardcoded in configure (with no option for
overriding them) and simply passed onto ghc through the settings file.
Since configure already guarantees gcc supports those flags, we simply
move them into GHC.
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981e5e11 by Arnaud Spiwack at 2023-05-31T08:34:33-04:00
Allow CPR on unrestricted constructors
Per the new `Note [Linting linearity]`, we want optimisations over
trying to preserve linearity. This will allow CPR to handle `Ur`, in
particular.
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bf9344d2 by Arnaud Spiwack at 2023-05-31T08:34:33-04:00
Push coercions across multiplicity boundaries
Per the new `Note [Linting linearity]`, we want optimisations over
trying to preserve linearity. This will avoid preventing inlinings and
reductions and make linear programs more efficient.
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d56dd695 by sheaf at 2023-05-31T11:37:12-04:00
Data.Bag: add INLINEABLE to polymorphic functions
This commit allows polymorphic methods in GHC.Data.Bag to be
specialised, avoiding having to pass explicit dictionaries when they
are instantiated with e.g. a known monad.
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5366cd35 by sheaf at 2023-05-31T11:37:12-04:00
Split off TcBinderStack into its own module
This commit splits off TcBinderStack into its own module,
to avoid module cycles: we might want to refer to it without also
pulling in the TcM monad.
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09d4d307 by sheaf at 2023-05-31T11:37:12-04:00
Split off TcRef into its own module
This helps avoid pull in the full TcM monad when we just want access
to mutable references in the typechecker. This facilitates later patches
which introduce a slimmed down TcM monad for zonking.
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88cc19b3 by sheaf at 2023-05-31T11:37:12-04:00
Introduce Codensity monad
The Codensity monad is useful to write state-passing computations in
continuation-passing style, e.g. to implement a State monad as
continuation-passing style over a Reader monad.
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f62d8195 by sheaf at 2023-05-31T11:37:12-04:00
Restructure the zonker
This commit splits up the zonker into a few separate components, described
in Note [The structure of the zonker] in `GHC.Tc.Zonk.Type`.
1. `GHC.Tc.Zonk.Monad` introduces a pared-down `TcM` monad, `ZonkM`,
which has enough information for zonking types.
This allows us to refactor `ErrCtxt` to use `ZonkM` instead of `TcM`,
which guarantees we don't throw an error while reporting an error.
2. `GHC.Tc.Zonk.Env` is the new home of `ZonkEnv`, and also defines
two zonking monad transformers, `ZonkT` and `ZonkBndrT`.
`ZonkT` is a reader monad transformer over `ZonkEnv`.
`ZonkBndrT m` is the codensity monad over `ZonkT m`.
`ZonkBndrT` is used for computations that accumulate binders
in the `ZonkEnv`.
3. `GHC.Tc.Zonk.TcType` contains the code for zonking types, for use
in the typechecker. It uses the `ZonkM` monad.
4. `GHC.Tc.Zonk.Type` contains the code for final zonking to `Type`,
which has been refactored to use `ZonkTcM = ZonkT TcM` and
`ZonkBndrTcM = ZonkBndrT TcM`.
Allocations slightly decrease on the whole due to using
continuation-passing style instead of manual state passing of ZonkEnv
in the final zonking to Type.
-------------------------
Metric Decrease:
T4029
T8095
T14766
T15304
hard_hole_fits
RecordUpdPerf
Metric Increase:
T10421
-------------------------
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70526f5b by mimi.vx at 2023-05-31T11:37:53-04:00
Update rdt-theme to latest upstream version
Fixes https://gitlab.haskell.org/ghc/ghc/-/issues/23444
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f3556d6c by Finley McIlwaine at 2023-06-01T04:53:12-04:00
Restructure IPE buffer layout
Reference ticket #21766
This commit restructures IPE buffer list entries to not contain
references to their corresponding info tables. IPE buffer list nodes now
point to two lists of equal length, one holding the list of info table
pointers and one holding the corresponding entries for each info table.
This will allow the entry data to be compressed without losing the
references to the info tables.
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5d1f2411 by Finley McIlwaine at 2023-06-01T04:53:12-04:00
Add IPE compression to configure
Reference ticket #21766
Adds an `--enable-ipe-data-compreesion` flag to the configure script
which will check for libzstd and set the appropriate flags to allow for
IPE data compression in the compiler
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b7a640ac by Finley McIlwaine at 2023-06-01T04:53:12-04:00
IPE data compression
Reference ticket #21766
When IPE data compression is enabled, compress the emitted IPE buffer
entries and decompress them in the RTS.
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5aef5658 by Finley McIlwaine at 2023-06-01T04:53:12-04:00
Fix libzstd detection in configure and RTS
Ensure that `HAVE_LIBZSTD` gets defined to either 0 or 1 in all cases
and properly check that before IPE data decompression in the RTS. See
ticket #21766.
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69563c97 by Finley McIlwaine at 2023-06-01T04:53:12-04:00
Add note describing IPE data compression
See ticket #21766
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7872e2b6 by Finley McIlwaine at 2023-06-01T04:53:12-04:00
Fix byte order of IPE data, fix IPE tests
Make sure byte order of written IPE buffer entries matches target.
Make sure the IPE-related tests properly access the fields of IPE buffer
entry nodes with the new IPE layout.
This commit also introduces checks to avoid importing modules if IPE
compression is not enabled.
See ticket #21766.
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0e85099b by Finley McIlwaine at 2023-06-01T04:53:12-04:00
Fix IPE data decompression buffer allocation
Capacity of buffers allocated for decompressed IPE data was
incorrect due to a misuse of the `ZSTD_findFrameCompressedSize`
function. Fix by always storing decompressed size of IPE data in IPE
buffer list nodes and using `ZSTD_findFrameCompressedSize` to determine
the size of the compressed data.
See ticket #21766
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a0048866 by Finley McIlwaine at 2023-06-01T04:53:12-04:00
Add optional dependencies to ./configure output
Changes the configure script to indicate whether libnuma, libzstd, or
libdw are being used as dependencies due to their optional features
being enabled.
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09d93bd0 by Finley McIlwaine at 2023-06-01T04:53:12-04:00
Add IPE-enabled builds to CI
- Adds an IPE job to the CI pipeline which is triggered by the ~IPE label
- Introduces CI logic to enable IPE data compression
- Enables uncompressed IPE data on debug CI job
- Regenerates jobs.yaml
MR https://gitlab.haskell.org/ghc/ci-images/-/merge_requests/112 on the
images repository is meant to ensure that the proper images have
libzstd-dev installed.
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3ded9a1c by Finley McIlwaine at 2023-06-01T04:53:12-04:00
Update user's guide and release notes, small fixes
Add mention of IPE data compression to user's guide and the release
notes for 9.8.1. Also note the impact compression has on binary size in
both places.
Change IpeBufferListNode compression check so only the value `1`
indicates compression.
See ticket #21766
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41b41577 by Finley McIlwaine at 2023-06-01T04:53:12-04:00
Remove IPE enabled builds from CI
We don't need to explicitly specify the +ipe transformer to test IPE data
since there are tests which manually enable IPE information. This commit does
leave zstd IPE data compression enabled on the debian CI jobs.
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982bef3a by Krzysztof Gogolewski at 2023-06-01T04:53:49-04:00
Fix build with 9.2
GHC.Tc.Zonk.Type uses an equality constraint.
ghc.nix currently provides 9.2.
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1c96bc3d by Krzysztof Gogolewski at 2023-06-01T10:56:11-04:00
Output Lint errors to stderr instead of stdout
This is a continuation of 7b095b99, which fixed warnings but not errors.
Refs #13342
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8e81f140 by sheaf at 2023-06-01T10:56:51-04:00
Refactor lookupExactOrOrig & friends
This refactors the panoply of renamer lookup functions relating to
lookupExactOrOrig to more graciously handle Exact and Orig names.
In particular, we avoid the situation in which we would add Exact/Orig
GREs to the tcg_used_gres field, which could cause a panic in bestImport
like in #23240.
Fixes #23428
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5d415bfd by Krzysztof Gogolewski at 2023-06-01T10:57:31-04:00
Use the one-shot trick for UM and RewriteM functors
As described in Note [The one-shot state monad trick],
we shouldn't use derived Functor instances for monads using
one-shot. This was done for most of them, but UM and RewriteM
were missed.
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2c38551e by Krzysztof Gogolewski at 2023-06-01T10:58:08-04:00
Fix testsuite skipping Lint
setTestOpts() is used to modify the test options for an entire .T file,
rather than a single test.
If there was a test using collect_compiler_stats, all of the tests
in the same file had lint disabled.
Fixes #21247
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00a1e50b by Krzysztof Gogolewski at 2023-06-01T10:58:44-04:00
Add testcases for already fixed #16432
They were fixed by 40c7daed0.
Fixes #16432
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f6e060cc by Krzysztof Gogolewski at 2023-06-02T09:07:25-04:00
cleanup: Remove unused field from SelfBoot
It is no longer needed since Note [Extra dependencies from .hs-boot files]
was deleted in 6998772043.
I've also added tildes to Note headers, otherwise they're not detected
by the linter.
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82eacab6 by sheaf at 2023-06-02T09:08:01-04:00
Delete GHC.Tc.Utils.Zonk
This module was split up into GHC.Tc.Zonk.Type and GHC.Tc.Zonk.TcType
in commit f62d8195, but I forgot to delete the original module
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4a4eb761 by Ben Gamari at 2023-06-02T23:53:21-04:00
base: Add build-order import of GHC.Types in GHC.IO.Handle.Types
For reasons similar to those described in Note [Depend on
GHC.Num.Integer].
Fixes #23411.
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f53ac0ae by Sylvain Henry at 2023-06-02T23:54:01-04:00
JS: fix and enhance non-minimized code generation (#22455)
Flag -ddisable-js-minimizer was producing invalid code. Fix that and
also a few other things to generate nicer JS code for debugging.
The added test checks that we don't regress when using the flag.
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3a7f337b by Vladislav Zavialov at 2023-06-03T22:41:57+02:00
Invisible binders in type declarations (#22560)
This patch implements @k-binders introduced in GHC Proposal #425
and guarded behind the TypeAbstractions extension:
type D :: forall k j. k -> j -> Type
data D @k @j a b = ...
^^ ^^
To represent the new syntax, we modify LHsQTyVars as follows:
- hsq_explicit :: [LHsTyVarBndr () pass]
+ hsq_explicit :: [LHsTyVarBndr (HsBndrVis pass) pass]
HsBndrVis is a new data type that records the distinction between
type variable binders written with and without the @ sign:
data HsBndrVis pass
= HsBndrRequired
| HsBndrInvisible (LHsToken "@" pass)
The rest of the patch updates GHC, template-haskell, and haddock
to handle the new syntax.
Parser:
The PsErrUnexpectedTypeAppInDecl error message is removed.
The syntax it used to reject is now permitted.
Renamer:
The @ sign does not affect the scope of a binder, so the changes to
the renamer are minimal. See rnLHsTyVarBndrVisFlag.
Type checker:
There are three code paths that were updated to deal with the newly
introduced invisible type variable binders:
1. checking SAKS: see kcCheckDeclHeader_sig, matchUpSigWithDecl
2. checking CUSK: see kcCheckDeclHeader_cusk
3. inference: see kcInferDeclHeader, rejectInvisibleBinders
Helper functions bindExplicitTKBndrs_Q_Skol and bindExplicitTKBndrs_Q_Tv
are generalized to work with HsBndrVis.
Updates the haddock submodule.
Metric Increase:
MultiLayerModulesTH_OneShot
Co-authored-by: Simon Peyton Jones <simon.peytonjones at gmail.com>
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30 changed files:
- .gitlab/gen_ci.hs
- .gitlab/jobs.yaml
- compiler/GHC/Builtin/Names/TH.hs
- compiler/GHC/Builtin/Types/Prim.hs
- compiler/GHC/Core/Lint.hs
- compiler/GHC/Core/Opt/Arity.hs
- compiler/GHC/Core/Opt/WorkWrap/Utils.hs
- compiler/GHC/Core/TyCon.hs
- compiler/GHC/Core/Type.hs
- compiler/GHC/Core/Unify.hs
- compiler/GHC/CoreToStg/Prep.hs
- compiler/GHC/Data/Bag.hs
- compiler/GHC/Data/IOEnv.hs
- compiler/GHC/Driver/CodeOutput.hs
- compiler/GHC/Driver/Main.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Hs/Instances.hs
- compiler/GHC/Hs/Type.hs
- compiler/GHC/Hs/Utils.hs
- compiler/GHC/HsToCore/Binds.hs
- compiler/GHC/HsToCore/Expr.hs
- compiler/GHC/HsToCore/Match/Literal.hs
- compiler/GHC/HsToCore/Pmc/Desugar.hs
- compiler/GHC/HsToCore/Quote.hs
- compiler/GHC/IfaceToCore.hs
- compiler/GHC/JS/Make.hs
- compiler/GHC/JS/Optimizer.hs
- compiler/GHC/JS/Ppr.hs
- compiler/GHC/Parser/Errors/Ppr.hs
- compiler/GHC/Parser/Errors/Types.hs
The diff was not included because it is too large.
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/4a92480c0b1ed2ede04470b6c5e4c8f2c2a178d8...3a7f337b43ddd0b88edb18fa13d59fa06dee1018
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/4a92480c0b1ed2ede04470b6c5e4c8f2c2a178d8...3a7f337b43ddd0b88edb18fa13d59fa06dee1018
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