[Git][ghc/ghc][wip/tsan/fix-races] 269 commits: Desugar bindings in the context of their evidence
Ben Gamari (@bgamari)
gitlab at gitlab.haskell.org
Tue Sep 19 18:20:25 UTC 2023
Ben Gamari pushed to branch wip/tsan/fix-races at Glasgow Haskell Compiler / GHC
Commits:
e2c91bff by Gergő Érdi at 2023-08-03T02:55:46+01:00
Desugar bindings in the context of their evidence
Closes #23172
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481f4a46 by Gergő Érdi at 2023-08-03T07:48:43+01:00
Add flag to `-f{no-}specialise-incoherents` to enable/disable specialisation of
incoherent instances
Fixes #23287
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d751c583 by Profpatsch at 2023-08-04T12:24:26-04:00
base: Improve String & IsString documentation
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01db1117 by Ben Gamari at 2023-08-04T12:25:02-04:00
rts/win32: Ensure reliability of IO manager shutdown
When the Win32 threaded IO manager shuts down, `ioManagerDie` sends an
`IO_MANAGER_DIE` event to the IO manager thread using the
`io_manager_event` event object. Finally, it will closes the event object,
and invalidate `io_manager_event`.
Previously, `readIOManagerEvent` would see that `io_manager_event` is
invalid and return `0`, suggesting that everything is right with the
world. This meant that if `ioManagerDie` invalidated the handle before
the event manager was blocked on the event we would end up in a
situation where the event manager would never realize it was asked to
shut down.
Fix this by ensuring that `readIOManagerEvent` instead returns
`IO_MANAGER_DIE` when we detect that the event object has been
invalidated by `ioManagerDie`.
Fixes #23691.
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fdef003a by Ryan Scott at 2023-08-04T12:25:39-04:00
Look through TH splices in splitHsApps
This modifies `splitHsApps` (a key function used in typechecking function
applications) to look through untyped TH splices and quasiquotes. Not doing so
was the cause of #21077. This builds on !7821 by making `splitHsApps` match on
`HsUntypedSpliceTop`, which contains the `ThModFinalizers` that must be run as
part of invoking the TH splice. See the new `Note [Looking through Template
Haskell splices in splitHsApps]` in `GHC.Tc.Gen.Head`.
Along the way, I needed to make the type of `splitHsApps.set` slightly more
general to accommodate the fact that the location attached to a quasiquote is
a `SrcAnn NoEpAnns` rather than a `SrcSpanAnnA`.
Fixes #21077.
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e77a0b41 by Ben Gamari at 2023-08-04T12:26:15-04:00
Bump deepseq submodule to 1.5.
And bump bounds
(cherry picked from commit 1228d3a4a08d30eaf0138a52d1be25b38339ef0b)
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cebb5819 by Ben Gamari at 2023-08-04T12:26:15-04:00
configure: Bump minimal boot GHC version to 9.4
(cherry picked from commit d3ffdaf9137705894d15ccc3feff569d64163e8e)
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83766dbf by Ben Gamari at 2023-08-04T12:26:15-04:00
template-haskell: Bump version to 2.21.0.0
Bumps exceptions submodule.
(cherry picked from commit bf57fc9aea1196f97f5adb72c8b56434ca4b87cb)
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1211112a by Ben Gamari at 2023-08-04T12:26:15-04:00
base: Bump version to 4.19
Updates all boot library submodules.
(cherry picked from commit 433d99a3c24a55b14ec09099395e9b9641430143)
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3ab5efd9 by Ben Gamari at 2023-08-04T12:26:15-04:00
testsuite: Normalise versions more aggressively
In backpack hashes can contain `+` characters.
(cherry picked from commit 024861af51aee807d800e01e122897166a65ea93)
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d52be957 by Ben Gamari at 2023-08-04T12:26:15-04:00
testsuite: Declare bkpcabal08 as fragile
Due to spurious output changes described in #23648.
(cherry picked from commit c046a2382420f2be2c4a657c56f8d95f914ea47b)
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e75a58d1 by Ben Gamari at 2023-08-04T12:26:15-04:00
gitlab-ci: Only mark linker_unload_native as broken in static jobs
This test passes on dynamically-linked Alpine.
(cherry picked from commit f356a7e8ec8ec3d6b2b30fd175598b9b80065d87)
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8b176514 by Ben Gamari at 2023-08-04T12:26:15-04:00
testsuite: Update base-exports
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4b647936 by Ben Gamari at 2023-08-04T12:26:15-04:00
testsuite/interface-stability: normalise versions
This eliminates spurious changes from version bumps.
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0eb54c05 by Ben Gamari at 2023-08-04T12:26:51-04:00
linker/PEi386: Don't sign-extend symbol section number
Previously we incorrectly interpreted PE section numbers as signed
values. However, this isn't the case; rather, it's an unsigned 16-bit number
with a few special bit-patterns (0xffff and 0xfffe). This resulted in #22941
as the linker would conclude that the sections were invalid.
Fixing this required quite a bit of refactoring.
Closes #22941.
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fd7ce39c by Ben Gamari at 2023-08-04T12:27:28-04:00
testsuite: Mark MulMayOflo_full as broken rather than skipping
To ensure that we don't accidentally fix it.
See #23742.
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824092f2 by Ben Gamari at 2023-08-04T12:27:28-04:00
nativeGen/AArch64: Fix sign extension in MulMayOflo
Previously the 32-bit implementations of MulMayOflo would use the
a non-sensical sign-extension mode. Rewrite these to reflect what gcc 11
produces. Also similarly rework the 16- and 8-bit cases.
This now passes the MulMayOflo tests in ghc/test-primops> in all four
widths, including the precision tests.
Fixes #23721.
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1b15dbc4 by Jan Hrček at 2023-08-04T12:28:08-04:00
Fix haddock markup in code example for coerce
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46fd8ced by Vladislav Zavialov at 2023-08-04T12:28:44-04:00
Fix (~) and (@) infix operators in TH splices (#23748)
8168b42a "Whitespace-sensitive bang patterns" allows GHC to accept
the following infix operators:
a ~ b = ()
a @ b = ()
But not if TH is used to generate those declarations:
$([d| a ~ b = ()
a @ b = ()
|])
-- Test.hs:5:2: error: [GHC-55017]
-- Illegal variable name: ‘~’
-- When splicing a TH declaration: (~_0) a_1 b_2 = GHC.Tuple.Prim.()
This is easily fixed by modifying `reservedOps` in GHC.Utils.Lexeme
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a1899d8f by Aaron Allen at 2023-08-04T12:29:24-04:00
[#23663] Show Flag Suggestions in GHCi
Makes suggestions when using `:set` in GHCi with a misspelled flag. This
mirrors how invalid flags are handled when passed to GHC directly. Logic
for producing flag suggestions was moved to GHC.Driver.Sesssion so it
can be shared.
resolves #23663
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03f2debd by Rodrigo Mesquita at 2023-08-04T12:30:00-04:00
Improve ghc-toolchain validation configure warning
Fixes the layout of the ghc-toolchain validation warning produced by
configure.
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de25487d by Alan Zimmerman at 2023-08-04T12:30:36-04:00
EPA make getLocA a synonym for getHasLoc
This is basically a no-op change, but allows us to make future changes
that can rely on the HasLoc instances
And I presume this means we can use more precise functions based on
class resolution, so the Windows CI build reports
Metric Decrease:
T12234
T13035
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3ac423b9 by Ben Gamari at 2023-08-04T12:31:13-04:00
ghc-platform: Add upper bound on base
Hackage upload requires this.
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8ba20b21 by Matthew Craven at 2023-08-04T17:22:59-04:00
Adjust and clarify handling of primop effects
Fixes #17900; fixes #20195.
The existing "can_fail" and "has_side_effects" primop attributes
that previously governed this were used in inconsistent and
confusingly-documented ways, especially with regard to raising
exceptions. This patch replaces them with a single "effect"
attribute, which has four possible values: NoEffect, CanFail,
ThrowsException, and ReadWriteEffect. These are described in
Note [Classifying primop effects].
A substantial amount of related documentation has been re-drafted
for clarity and accuracy.
In the process of making this attribute format change for literally
every primop, several existing mis-classifications were detected and
corrected. One of these mis-classifications was tagToEnum#, which
is now considered CanFail; this particular fix is known to cause a
regression in performance for derived Enum instances. (See #23782.)
Fixing this is left as future work.
New primop attributes "cheap" and "work_free" were also added,
and used in the corresponding parts of GHC.Core.Utils.
In view of their actual meaning and uses, `primOpOkForSideEffects`
and `exprOkForSideEffects` have been renamed to `primOpOkToDiscard`
and `exprOkToDiscard`, respectively.
Metric Increase:
T21839c
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41bf2c09 by sheaf at 2023-08-04T17:23:42-04:00
Update inert_solved_dicts for ImplicitParams
When adding an implicit parameter dictionary to the inert set, we must
make sure that it replaces any previous implicit parameter dictionaries
that overlap, in order to get the appropriate shadowing behaviour, as in
let ?x = 1 in let ?x = 2 in ?x
We were already doing this for inert_cans, but we weren't doing the same
thing for inert_solved_dicts, which lead to the bug reported in #23761.
The fix is thus to make sure that, when handling an implicit parameter
dictionary in updInertDicts, we update **both** inert_cans and
inert_solved_dicts to ensure a new implicit parameter dictionary
correctly shadows old ones.
Fixes #23761
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43578d60 by Matthew Craven at 2023-08-05T01:05:36-04:00
Bump bytestring submodule to 0.11.5.1
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91353622 by Ben Gamari at 2023-08-05T01:06:13-04:00
Initial commit of Note [Thunks, blackholes, and indirections]
This Note attempts to summarize the treatment of thunks, thunk update,
and indirections.
This fell out of work on #23185.
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8d686854 by sheaf at 2023-08-05T01:06:54-04:00
Remove zonk in tcVTA
This removes the zonk in GHC.Tc.Gen.App.tc_inst_forall_arg and its
accompanying Note [Visible type application zonk]. Indeed, this zonk
is no longer necessary, as we no longer maintain the invariant that
types are well-kinded without zonking; only that typeKind does not
crash; see Note [The Purely Kinded Type Invariant (PKTI)].
This commit removes this zonking step (as well as a secondary zonk),
and replaces the aforementioned Note with the explanatory
Note [Type application substitution], which justifies why the
substitution performed in tc_inst_forall_arg remains valid without
this zonking step.
Fixes #23661
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19dea673 by Ben Gamari at 2023-08-05T01:07:30-04:00
Bump nofib submodule
Ensuring that nofib can be build using the same range of bootstrap
compilers as GHC itself.
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aa07402e by Luite Stegeman at 2023-08-05T23:15:55+09:00
JS: Improve compatibility with recent emsdk
The JavaScript code in libraries/base/jsbits/base.js had some
hardcoded offsets for fields in structs, because we expected
the layout of the data structures to remain unchanged. Emsdk
3.1.42 changed the layout of the stat struct, breaking this
assumption, and causing code in .hsc files accessing the
stat struct to fail.
This patch improves compatibility with recent emsdk by
removing the assumption that data layouts stay unchanged:
1. offsets of fields in structs used by JavaScript code are
now computed by the configure script, so both the .js and
.hsc files will automatically use the new layout if anything
changes.
2. the distrib/configure script checks that the emsdk version
on a user's system is the same version that a bindist was
booted with, to avoid data layout inconsistencies
See #23641
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b938950d by Luite Stegeman at 2023-08-07T06:27:51-04:00
JS: Fix missing local variable declarations
This fixes some missing local variable declarations that were
found by running the testsuite in strict mode.
Fixes #23775
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6c0e2247 by sheaf at 2023-08-07T13:31:21-04:00
Update Haddock submodule to fix #23368
This submodule update adds the following three commits:
bbf1c8ae - Check for puns
0550694e - Remove fake exports for (~), List, and Tuple<n>
5877bceb - Fix pretty-printing of Solo and MkSolo
These commits fix the issues with Haddock HTML rendering reported in
ticket #23368.
Fixes #23368
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5b5be3ea by Matthew Pickering at 2023-08-07T13:32:00-04:00
Revert "Bump bytestring submodule to 0.11.5.1"
This reverts commit 43578d60bfc478e7277dcd892463cec305400025.
Fixes #23789
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01961be3 by Ben Gamari at 2023-08-08T02:47:14-04:00
configure: Derive library version from ghc-prim.cabal.in
Since ghc-prim.cabal is now generated by Hadrian, we cannot depend upon
it.
Closes #23726.
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3b373838 by Ryan Scott at 2023-08-08T02:47:49-04:00
tcExpr: Push expected types for untyped TH splices inwards
In !10911, I deleted a `tcExpr` case for `HsUntypedSplice` in favor of a much
simpler case that simply delegates to `tcApp`. Although this passed the test
suite at the time, this was actually an error, as the previous `tcExpr` case
was critically pushing the expected type inwards. This actually matters for
programs like the one in #23796, which GHC would not accept with type inference
alone—we need full-blown type _checking_ to accept these.
I have added back the previous `tcExpr` case for `HsUntypedSplice` and now
explain why we have two different `HsUntypedSplice` cases (one in `tcExpr` and
another in `splitHsApps`) in `Note [Looking through Template Haskell splices in
splitHsApps]` in `GHC.Tc.Gen.Head`.
Fixes #23796.
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0ef1d8ae by sheaf at 2023-08-08T21:26:51-04:00
Compute all emitted diagnostic codes
This commit introduces in GHC.Types.Error.Codes the function
constructorCodes :: forall diag. (...) => Map DiagnosticCode String
which computes a collection of all the diagnostic codes that correspond
to a particular type. In particular, we can compute the collection of
all diagnostic codes emitted by GHC using the invocation
constructorCodes @GhcMessage
We then make use of this functionality in the new "codes" test which
checks consistency and coverage of GHC diagnostic codes.
It performs three checks:
- check 1: all non-outdated GhcDiagnosticCode equations
are statically used.
- check 2: all outdated GhcDiagnosticCode equations
are statically unused.
- check 3: all statically used diagnostic codes are covered by
the testsuite (modulo accepted exceptions).
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4bc7b1e5 by Fraser Tweedale at 2023-08-08T21:27:32-04:00
numberToRangedRational: fix edge cases for exp ≈ (maxBound :: Int)
Currently a negative exponent less than `minBound :: Int` results in
Infinity, which is very surprising and obviously wrong.
```
λ> read "1e-9223372036854775808" :: Double
0.0
λ> read "1e-9223372036854775809" :: Double
Infinity
```
There is a further edge case where the exponent can overflow when
increased by the number of tens places in the integer part, or
underflow when decreased by the number of leading zeros in the
fractional part if the integer part is zero:
```
λ> read "10e9223372036854775807" :: Double
0.0
λ> read "0.01e-9223372036854775808" :: Double
Infinity
```
To resolve both of these issues, perform all arithmetic and
comparisons involving the exponent in type `Integer`. This approach
also eliminates the need to explicitly check the exponent against
`maxBound :: Int` and `minBound :: Int`, because the allowed range
of the exponent (i.e. the result of `floatRange` for the target
floating point type) is certainly within those bounds.
This change implements CLC proposal 192:
https://github.com/haskell/core-libraries-committee/issues/192
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6eab07b2 by Alan Zimmerman at 2023-08-08T21:28:10-04:00
EPA: Remove Location from WarningTxt source
This is not needed.
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1a98d673 by Sebastian Graf at 2023-08-09T16:24:29-04:00
Cleanup a TODO introduced in 1f94e0f7
The change must have slipped through review of !4412
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2274abc8 by Sebastian Graf at 2023-08-09T16:24:29-04:00
More explicit strictness in GHC.Real
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ce8aa54c by Sebastian Graf at 2023-08-09T16:24:30-04:00
exprIsTrivial: Factor out shared implementation
The duplication between `exprIsTrivial` and `getIdFromTrivialExpr_maybe` has
been bugging me for a long time.
This patch introduces an inlinable worker function `trivial_expr_fold` acting
as the single, shared decision procedure of triviality. It "returns" a
Church-encoded `Maybe (Maybe Id)`, so when it is inlined, it fuses to similar
code as before.
(Better code, even, in the case of `getIdFromTrivialExpr` which presently
allocates a `Just` constructor that cancels away after this patch.)
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d004a36d by Sebastian Graf at 2023-08-09T16:24:30-04:00
Simplify: Simplification of arguments in a single function
The Simplifier had a function `simplArg` that wasn't called in `rebuildCall`,
which seems to be the main way to simplify args. Hence I consolidated the code
path to call `simplArg`, too, renaming to `simplLazyArg`.
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8c73505e by Sebastian Graf at 2023-08-09T16:24:30-04:00
Core.Ppr: Omit case binder for empty case alternatives
A minor improvement to pretty-printing
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d8d993f1 by Sebastian Graf at 2023-08-09T16:24:30-04:00
Disable tests RepPolyWrappedVar2 and RepPolyUnsafeCoerce1 in JS backend
... because those coerce between incompatible/unknown PrimReps.
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f06e87e4 by Sebastian Graf at 2023-08-09T16:24:30-04:00
Inlining literals into boring contexts is OK
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4a6b7c87 by Sebastian Graf at 2023-08-09T16:24:30-04:00
Clarify floating of unsafeEqualityProofs (#23754)
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b0f4752e by Sebastian Graf at 2023-08-09T16:24:30-04:00
Kill SetLevel.notWorthFloating.is_triv (#23270)
We have had it since b84ba676034, when it operated on annotated expressions.
Nowadays it operates on vanilla `CoreExpr` though, so we should just call
`exprIsTrivial`; thus handling empty cases and string literals correctly.
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7e0c8b3b by Sebastian Graf at 2023-08-09T16:24:30-04:00
ANFise string literal arguments (#23270)
This instates the invariant that a trivial CoreExpr translates to an atomic
StgExpr. Nice.
Annoyingly, in -O0 we sometimes generate
```
foo = case "blah"# of sat { __DEFAULT -> unpackCString# sat }
```
which makes it a bit harder to spot that we can emit a standard
`stg_unpack_cstring` thunk.
Fixes #23270.
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357f2738 by Sebastian Graf at 2023-08-09T16:24:30-04:00
Deactivate -fcatch-nonexhaustive-cases in ghc-bignum (#23345)
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59202c80 by Sebastian Graf at 2023-08-09T16:24:30-04:00
CorePrep: Eliminate EmptyCase and unsafeEqualityProof in CoreToStg instead
We eliminate EmptyCase by way of `coreToStg (Case e _ _ []) = coreToStg e` now.
The main reason is that it plays far better in conjunction with eta expansion
(as we aim to do for arguments in CorePrep, #23083), because we can discard
any arguments, `(case e of {}) eta == case e of {}`, whereas in `(e |> co) eta`
it's impossible to discard the argument.
We do also give the same treatment to unsafeCoerce proofs and treat them as
trivial iff their RHS is trivial.
It is also both much simpler to describe than the previous mechanism of emitting
an unsafe coercion and simpler to implement, removing quite a bit of commentary
and `CorePrepProv`.
In the ghc/alloc perf test `LargeRecord`, we introduce an additional Simplifier
iteration due to #17910. E.g., FloatOut produces a binding
```
lvl_s6uK [Occ=Once1] :: GHC.Types.Int
[LclId]
lvl_s6uK = GHC.Types.I# 2#
lvl_s6uL [Occ=Once1] :: GHC.Types.Any
[LclId]
lvl_s6uL
= case Unsafe.Coerce.unsafeEqualityProof ... of
{ Unsafe.Coerce.UnsafeRefl v2_i6tr -> lvl_s6uK `cast` (... v2_i6tr ...)
}
```
That occurs once and hence is pre-inlined unconditionally in the next Simplifier
pass. It's non-trivial to find a way around that, but not really harmful
otherwise. Hence we accept a 1.2% increase on some architectures.
Metric Increase:
LargeRecord
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00d31188 by Sebastian Graf at 2023-08-09T16:24:30-04:00
CorePrep: Eta expand arguments (#23083)
Previously, we'd only eta expand let bindings and lambdas,
now we'll also eta expand arguments such as in T23083:
```hs
g f h = f (h `seq` (h $))
```
Unless `-fpedantic-bottoms` is set, we'll now transform to
```hs
g f h = f (\eta -> h eta)
```
in CorePrep.
See the new `Note [Eta expansion of arguments in CorePrep]` for the details.
We only do this optimisation with -O2 because we saw 2-3% ghc/alloc regressions
in T4801 and T5321FD.
Fixes #23083.
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bf885d7a by Matthew Craven at 2023-08-09T16:25:07-04:00
Bump bytestring submodule to 0.11.5, again
Fixes #23789.
The bytestring commit used here is unreleased;
a release can be made when necessary.
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7acbf0fd by Sven Tennie at 2023-08-10T19:17:11-04:00
Serialize CmmRetInfo in .rodata
The handling of case was missing.
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0c3136f2 by Sven Tennie at 2023-08-10T19:17:11-04:00
Reference StgRetFun payload by its struct field address
This is easier to grasp than relative pointer offsets.
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f68ff313 by Sven Tennie at 2023-08-10T19:17:11-04:00
Better variable name: u -> frame
The 'u' was likely introduced by copy'n'paste.
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0131bb7f by Sven Tennie at 2023-08-10T19:17:11-04:00
Make checkSTACK() public
Such that it can also be used in tests.
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7b6e1e53 by Sven Tennie at 2023-08-10T19:17:11-04:00
Publish stack related fields in DerivedConstants.h
These will be used in ghc-heap to decode these parts of the stack.
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907ed054 by Sven Tennie at 2023-08-10T19:17:11-04:00
ghc-heap: Decode StgStack and its stack frames
Previously, ghc-heap could only decode heap closures.
The approach is explained in detail in note
[Decoding the stack].
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6beb6ac2 by Sven Tennie at 2023-08-10T19:17:11-04:00
Remove RetFunType from RetFun stack frame representation
It's a technical detail. The single usage is replaced by a predicate.
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006bb4f3 by Sven Tennie at 2023-08-10T19:17:11-04:00
Better parameter name
The call-site uses the term "offset", too.
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d4c2c1af by Sven Tennie at 2023-08-10T19:17:11-04:00
Make closure boxing pure
There seems to be no need to do something complicated. However, the
strictness of the closure pointer matters, otherwise a thunk gets
decoded.
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8d8426c9 by Sven Tennie at 2023-08-10T19:17:11-04:00
Document entertainGC in test
It wasn't obvious why it's there and what its role is.
Also, increase the "entertainment level" a bit.
I checked in STG and Cmm dumps that this really generates closures (and
is not e.g. constant folded away.)
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cc52c358 by Finley McIlwaine at 2023-08-10T19:17:47-04:00
Add -dipe-stats flag
This is useful for seeing which info tables have information.
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261c4acb by Finley McIlwaine at 2023-08-10T19:17:47-04:00
Add -finfo-table-map-with-fallback -finfo-table-map-with-stack
The -fno-info-table-map-with-stack flag omits STACK info tables from the info
table map, and the -fno-info-table-map-with-fallback flag omits info tables
with defaulted source locations from the map. In a test on the Agda codebase
the build results were about 7% smaller when both of those types of tables
were omitted.
Adds a test that verifies that passing each combination of these flags
results in the correct output for -dipe-stats, which is disabled for the js
backend since profiling is not implemented.
This commit also refactors a lot of the logic around extracting info tables
from the Cmm results and building the info table map.
This commit also fixes some issues in the users guide rst source to fix
warnings that were noticed while debugging the documentation for these flags.
Fixes #23702
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d7047e0d by Jaro Reinders at 2023-08-14T04:41:42-04:00
Add changelog entry for specialised Enum Int64/Word64 instances
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52f5e8fb by cydparser at 2023-08-14T04:42:20-04:00
Fix -ddump-to-file and -ddump-timings interaction (#20316)
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1274c5d6 by cydparser at 2023-08-14T04:42:20-04:00
Update release notes (#20316)
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8e699b23 by Matthew Pickering at 2023-08-14T10:44:47-04:00
base: Add changelog entry for CLC #188
This proposal modified the implementations of copyBytes, moveBytes and
fillBytes (as detailed in the proposal)
https://github.com/haskell/core-libraries-committee/issues/188
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026f040a by Matthew Pickering at 2023-08-14T10:45:23-04:00
packaging: Build manpage in separate directory to other documentation
We were installing two copies of the manpage:
* One useless one in the `share/doc` folder, because we copy the doc/
folder into share/
* The one we deliberately installed into `share/man` etc
The solution is to build the manpage into the `manpage` directory when
building the bindist, and then just install it separately.
Fixes #23707
- - - - -
524c60c8 by Bartłomiej Cieślar at 2023-08-14T13:46:33-04:00
Report deprecated fields bound by record wildcards when used
This commit ensures that we emit the appropriate warnings when
a deprecated record field bound by a record wildcard is used.
For example:
module A where
data Foo = Foo {x :: Int, y :: Bool, z :: Char}
{-# DEPRECATED x "Don't use x" #-}
{-# WARNING y "Don't use y" #-}
module B where
import A
foo (Foo {..}) = x
This will cause us to emit a "Don't use x" warning, with location the
location of the record wildcard. Note that we don't warn about `y`,
because it is unused in the RHS of `foo`.
Fixes #23382
- - - - -
d6130065 by Matthew Pickering at 2023-08-14T13:47:11-04:00
Add zstd suffix to jobs which rely on zstd
This was causing some confusion as the job was named simply
"x86_64-linux-deb10-validate", which implies a standard configuration
rather than any dependency on libzstd.
- - - - -
e24e44fc by Matthew Pickering at 2023-08-14T13:47:11-04:00
ci: Always run project-version job
This is needed for the downstream test-primops pipeline to workout what
the version of a bindist produced by a pipeline is.
- - - - -
f17b9d62 by Matthew Pickering at 2023-08-14T13:47:11-04:00
gen_ci: Rework how jobs-metadata.json is generated
* We now represent a job group a triple of Maybes, which makes it easier
to work out when jobs are enabled/disabled on certain pipelines.
```
data JobGroup a = StandardTriple { v :: Maybe (NamedJob a)
, n :: Maybe (NamedJob a)
, r :: Maybe (NamedJob a) }
```
* `jobs-metadata.json` generation is reworked using the following
algorithm.
- For each pipeline type, find all the platforms we are doing builds
for.
- Select one build per platform
- Zip together the results
This way we can choose different pipelines for validate/nightly/release
which makes the metadata also useful for validate pipelines. This
feature is used by the test-primops downstream CI in order to select the
right bindist for testing validate pipelines.
This makes it easier to inspect which jobs are going to be enabled on a
particular pipeline.
- - - - -
f9a5563d by Matthew Pickering at 2023-08-14T13:47:11-04:00
gen_ci: Rules rework
In particular we now distinguish between whether we are dealing with a
Nightly/Release pipeline (which labels don't matter for) and a validate
pipeline where labels do matter.
The overall goal here is to allow a disjunction of labels for validate
pipelines, for example,
> Run a job if we have the full-ci label or test-primops label
Therefore the "ValidateOnly" rules are treated as a set of disjunctions
rather than conjunctions like before.
What this means in particular is that if we want to ONLY run a job if a
label is set, for example, "FreeBSD" label then we have to override the
whole label set.
Fixes #23772
- - - - -
d54b0c1d by Matthew Pickering at 2023-08-14T13:47:11-04:00
ci: set -e for lint-ci-config scripts
- - - - -
994a9b35 by Matthew Pickering at 2023-08-14T13:47:11-04:00
ci: Fix job metadata generation
- - - - -
e194ed2b by Ben Gamari at 2023-08-15T00:58:09-04:00
users-guide: Note that GHC2021 doesn't include ExplicitNamespaces
As noted in #23801.
- - - - -
d814bda9 by Ben Gamari at 2023-08-15T05:43:53-04:00
users-guide: Support both distutils and packaging
As noted in #23818, some old distributions (e.g. Debian 9) only include
`distutils` while newer distributions only include `packaging`.
Fixes #23818.
- - - - -
1726db3f by Ben Gamari at 2023-08-15T05:43:53-04:00
users-guide: Ensure extlinks is compatible with Sphinx <4
The semantics of the `extlinks` attribute annoyingly changed in Sphinx
4. Reflect this in our configuration. See #22690.
Fixes #23807.
- - - - -
173338cf by Matthew Pickering at 2023-08-15T22:00:24-04:00
ci: Run full-ci on master and release branches
Fixes #23737
- - - - -
bdab6898 by Bodigrim at 2023-08-15T22:01:03-04:00
Add @since pragmas for Data.Ord.clamp and GHC.Float.clamp
- - - - -
662d351b by Matthew Pickering at 2023-08-16T09:35:04-04:00
ghc-toolchain: Match CPP args with configure script
At the moment we need ghc-toolchain to precisely match the output as
provided by the normal configure script. The normal configure script
(FP_HSCPP_CMD_WITH_ARGS) branches on whether we are using clang or gcc
so we match that logic exactly in ghc-toolchain.
The old implementation (which checks if certain flags are supported) is
better but for now we have to match to catch any potential errors in the
configuration.
Ticket: #23720
- - - - -
09c6759e by Matthew Pickering at 2023-08-16T09:35:04-04:00
configure: Fix `-Wl,--no-as-needed` check
The check was failing because the args supplied by $$1 were quoted which
failed because then the C compiler thought they were an input file.
Fixes #23720
- - - - -
2129678b by Matthew Pickering at 2023-08-16T09:35:04-04:00
configure: Add flag which turns ghc-toolchain check into error
We want to catch these errors in CI, but first we need to a flag which
turns this check into an error.
- - - - -
6e2aa8e0 by Matthew Pickering at 2023-08-16T09:35:04-04:00
ci: Enable --enable-strict-ghc-toolchain-check for all CI jobs
This will cause any CI job to fail if we have a mismatch between what
ghc-toolchain reports and what ./configure natively reports. Fixing
these kinds of issues is highest priority for 9.10 release.
- - - - -
12d39e24 by Rodrigo Mesquita at 2023-08-16T09:35:04-04:00
Pass user-specified options to ghc-toolchain
The current user interface to configuring target toolchains is `./configure`.
In !9263 we added a new tool to configure target toolchains called
`ghc-toolchain`, but the blessed way of creating these toolchains is
still through configure.
However, we were not passing the user-specified options given with the
`./configure` invocation to the ghc-toolchain tool.
This commit remedies that by storing the user options and environment
variables in USER_* variables, which then get passed to GHC-toolchain.
The exception to the rule is the windows bundled toolchain, which
overrides the USER_* variables with whatever flags the windows bundled
toolchain requires to work.
We consider the bundled toolchain to be effectively the user specifying
options, since the actual user delegated that configuration work.
Closes #23678
- - - - -
f7b3c3a0 by Rodrigo Mesquita at 2023-08-16T09:35:04-04:00
ghc-toolchain: Parse javascript and ghcjs as a Arch and OS
- - - - -
8a0ae4ee by Rodrigo Mesquita at 2023-08-16T09:35:04-04:00
ghc-toolchain: Fix ranlib option
- - - - -
31e9ec96 by Rodrigo Mesquita at 2023-08-16T09:35:04-04:00
Check Link Works with -Werror
- - - - -
bc1998b3 by Matthew Pickering at 2023-08-16T09:35:04-04:00
Only check for no_compact_unwind support on darwin
While writing ghc-toolchain we noticed that the
FP_PROG_LD_NO_COMPACT_UNWIND check is subtly wrong. Specifically, we
pass -Wl,-no_compact_unwind to cc. However, ld.gold interprets this as
-n o_compact_unwind, which is a valid argument.
Fixes #23676
- - - - -
0283f36e by Matthew Pickering at 2023-08-16T09:35:04-04:00
Add some javascript special cases to ghc-toolchain
On javascript there isn't a choice of toolchain but some of the
configure checks were not accurately providing the correct answer.
1. The linker was reported as gnu LD because the --version output
mentioned gnu LD.
2. The --target flag makes no sense on javascript but it was just
ignored by the linker, so we add a special case to stop ghc-toolchain
thinking that emcc supports --target when used as a linker.
- - - - -
a48ec5f8 by Matthew Pickering at 2023-08-16T09:35:04-04:00
check for emcc in gnu_LD check
- - - - -
50df2e69 by Matthew Pickering at 2023-08-16T09:35:04-04:00
Add ldOverrideWhitelist to only default to ldOverride on windows/linux
On some platforms - ie darwin, javascript etc we really do not want to
allow the user to use any linker other than the default one as this
leads to all kinds of bugs. Therefore it is a bit more prudant to add a
whitelist which specifies on which platforms it might be possible to use
a different linker.
- - - - -
a669a39c by Matthew Pickering at 2023-08-16T09:35:04-04:00
Fix plaform glob in FPTOOLS_SET_C_LD_FLAGS
A normal triple may look like
x86_64-unknown-linux
but when cross-compiling you get $target set to a quad such as..
aarch64-unknown-linux-gnu
Which should also match this check.
- - - - -
c52b6769 by Matthew Pickering at 2023-08-16T09:35:04-04:00
ghc-toolchain: Pass ld-override onto ghc-toolchain
- - - - -
039b484f by Matthew Pickering at 2023-08-16T09:35:04-04:00
ld override: Make whitelist override user given option
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d2b63cbc by Matthew Pickering at 2023-08-16T09:35:05-04:00
ghc-toolchain: Add format mode to normalise differences before diffing.
The "format" mode takes an "--input" and "--ouput" target file and
formats it.
This is intended to be useful on windows where the
configure/ghc-toolchain target files can't be diffed very easily because
the path separators are different.
- - - - -
f2b39e4a by Matthew Pickering at 2023-08-16T09:35:05-04:00
ghc-toolchain: Bump ci-images commit to get new ghc-wasm-meta
We needed to remove -Wno-unused-command-line-argument from the arguments
passed in order for the configure check to report correctly.
See https://gitlab.haskell.org/ghc/ghc/-/merge_requests/10976#note_516335
- - - - -
92103830 by Matthew Pickering at 2023-08-16T09:35:05-04:00
configure: MergeObjsCmd - distinguish between empty string and unset variable
If `MergeObjsCmd` is explicitly set to the empty string then we should
assume that MergeObjs is just not supported.
This is especially important for windows where we set MergeObjsCmd to ""
in m4/fp_setup_windows_toolchain.m4.
- - - - -
3500bb2c by Matthew Pickering at 2023-08-16T09:35:05-04:00
configure: Add proper check to see if object merging works
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08c9a014 by Matthew Pickering at 2023-08-16T09:35:05-04:00
ghc-toolchain: If MergeObjsCmd is not set, replace setting with Nothing
If the user explicitly chooses to not set a MergeObjsCmd then it is
correct to use Nothing for tgtMergeObjs field in the Target file.
- - - - -
c9071d94 by Matthew Pickering at 2023-08-16T09:35:05-04:00
HsCppArgs: Augment the HsCppOptions
This is important when we pass -I when setting up the windows toolchain.
- - - - -
294a6d80 by Matthew Pickering at 2023-08-16T09:35:05-04:00
Set USER_CPP_ARGS when setting up windows toolchain
- - - - -
bde4b5d4 by Rodrigo Mesquita at 2023-08-16T09:35:05-04:00
Improve handling of Cc as a fallback
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f4c1c3a3 by Rodrigo Mesquita at 2023-08-16T09:35:05-04:00
ghc-toolchain: Configure Cpp and HsCpp correctly when user specifies flags
In ghc-toolchain, we were only /not/ configuring required flags when the
user specified any flags at all for the of the HsCpp and Cpp tools.
Otherwise, the linker takes into consideration the user specified flags
to determine whether to search for a better linker implementation, but
already configured the remaining GHC and platform-specific flags
regardless of the user options.
Other Tools consider the user options as a baseline for further
configuration (see `findProgram`), so #23689 is not applicable.
Closes #23689
- - - - -
bfe4ffac by Matthew Pickering at 2023-08-16T09:35:05-04:00
CPP_ARGS: Put new options after user specified options
This matches up with the behaviour of ghc-toolchain, so that the output
of both matches.
- - - - -
a6828173 by Gergő Érdi at 2023-08-16T09:35:41-04:00
If a defaulting plugin made progress, re-zonk wanteds before built-in defaulting
Fixes #23821.
- - - - -
e2b38115 by Sylvain Henry at 2023-08-17T07:54:06-04:00
JS: implement openat(AT_FDCWD...) (#23697)
Use `openSync` to implement `openat(AT_FDCWD...)`.
- - - - -
a975c663 by sheaf at 2023-08-17T07:54:47-04:00
Use unsatisfiable for missing methods w/ defaults
When a class instance has an Unsatisfiable constraint in its context
and the user has not explicitly provided an implementation of a method,
we now always provide a RHS of the form `unsatisfiable @msg`, even
if the method has a default definition available. This ensures that,
when deferring type errors, users get the appropriate error message
instead of a possible runtime loop, if class default methods were
defined recursively.
Fixes #23816
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45ca51e5 by Ben Gamari at 2023-08-17T15:16:41-04:00
ghc-internal: Initial commit of the skeleton
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88bbf8c5 by Ben Gamari at 2023-08-17T15:16:41-04:00
ghc-experimental: Initial commit
- - - - -
664468c0 by Ben Gamari at 2023-08-17T15:17:17-04:00
testsuite/cloneStackLib: Fix incorrect format specifiers
- - - - -
eaa835bb by Ben Gamari at 2023-08-17T15:17:17-04:00
rts/ipe: Fix const-correctness of IpeBufferListNode
Both info tables and the string table should be `const`
- - - - -
78f6f6fd by Ben Gamari at 2023-08-17T15:17:17-04:00
nonmoving: Drop dead debugging utilities
These are largely superceded by support in the ghc-utils GDB extension.
- - - - -
3f6e8f42 by Ben Gamari at 2023-08-17T15:17:17-04:00
nonmoving: Refactor management of mark thread
Here we refactor that treatment of the worker thread used by the
nonmoving GC for concurrent marking, avoiding creating a new thread with
every major GC cycle. As well, the new scheme is considerably easier to
reason about, consolidating all state in one place, accessed via a small
set of accessors with clear semantics.
- - - - -
88c32b7d by Ben Gamari at 2023-08-17T15:17:17-04:00
testsuite: Skip T23221 in nonmoving GC ways
This test is very dependent upon GC behavior.
- - - - -
381cfaed by Ben Gamari at 2023-08-17T15:17:17-04:00
ghc-heap: Don't expose stack dirty and marking fields
These are GC metadata and are not relevant to the end-user. Moreover,
they are unstable which makes ghc-heap harder to test than necessary.
- - - - -
16828ca5 by Luite Stegeman at 2023-08-21T18:42:53-04:00
bump process submodule to include macOS fix and JS support
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b4d5f6ed by Matthew Pickering at 2023-08-21T18:43:29-04:00
ci: Add support for triggering test-primops pipelines
This commit adds 4 ways to trigger testing with test-primops.
1. Applying the ~test-primops label to a validate pipeline.
2. A manually triggered job on a validate pipeline
3. A nightly pipeline job
4. A release pipeline job
Fixes #23695
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32c50daa by Matthew Pickering at 2023-08-21T18:43:29-04:00
Add test-primops label support
The test-primops CI job requires some additional builds in the
validation pipeline, so we make sure to enable these jobs when
test-primops label is set.
- - - - -
73ca8340 by Matthew Pickering at 2023-08-21T18:43:29-04:00
Revert "Aarch ncg: Optimize immediate use for address calculations"
This reverts commit 8f3b3b78a8cce3bd463ed175ee933c2aabffc631.
See #23793
- - - - -
5546ad9e by Matthew Pickering at 2023-08-21T18:43:29-04:00
Revert "AArch NCG: Pure refactor"
This reverts commit 00fb6e6b06598752414a0b9a92840fb6ca61338d.
See #23793
- - - - -
02dfcdc2 by Matthew Pickering at 2023-08-21T18:43:29-04:00
Revert "Aarch64 NCG: Use encoded immediates for literals."
This reverts commit 40425c5021a9d8eb5e1c1046e2d5fa0a2918f96c.
See #23793
-------------------------
Metric Increase:
T4801
T5321FD
T5321Fun
-------------------------
- - - - -
7be4a272 by Matthew Pickering at 2023-08-22T08:55:20+01:00
ci: Remove manually triggered test-ci job
This doesn't work on slimmed down pipelines as the needed jobs don't
exist.
If you want to run test-primops then apply the label.
- - - - -
76a4d11b by Jaro Reinders at 2023-08-22T08:08:13-04:00
Remove Ptr example from roles docs
- - - - -
069729d3 by Bryan Richter at 2023-08-22T08:08:49-04:00
Guard against duplicate pipelines in forks
- - - - -
f861423b by Rune K. Svendsen at 2023-08-22T08:09:35-04:00
dump-decls: fix "Ambiguous module name"-error
Fixes errors of the following kind, which happen when dump-decls is run on a package that contains a module name that clashes with that of another package.
```
dump-decls: <no location info>: error:
Ambiguous module name `System.Console.ANSI.Types':
it was found in multiple packages:
ansi-terminal-0.11.4 ansi-terminal-types-0.11.5
```
- - - - -
edd8bc43 by Krzysztof Gogolewski at 2023-08-22T12:31:20-04:00
Fix MultiWayIf linearity checking (#23814)
Co-authored-by: Thomas BAGREL <thomas.bagrel at tweag.io>
- - - - -
4ba088d1 by konsumlamm at 2023-08-22T12:32:02-04:00
Update `Control.Concurrent.*` documentation
- - - - -
015886ec by ARATA Mizuki at 2023-08-22T15:13:13-04:00
Support 128-bit SIMD on AArch64 via LLVM backend
- - - - -
52a6d868 by Krzysztof Gogolewski at 2023-08-22T15:13:51-04:00
Testsuite cleanup
- Remove misleading help text in perf_notes, ways are not metrics
- Remove no_print_summary - this was used for Phabricator
- In linters tests, run 'git ls-files' just once.
Previously, it was called on each has_ls_files()
- Add ghc-prim.cabal to gitignore, noticed in #23726
- Remove ghc-prim.cabal, it was accidentally committed in 524c60c8cd
- - - - -
ab40aa52 by Alan Zimmerman at 2023-08-22T15:14:28-04:00
EPA: Use Introduce [DeclTag] in AnnSortKey
The AnnSortKey is used to keep track of the order of declarations for
printing when the container has split them apart.
This applies to HsValBinds and ClassDecl, ClsInstDecl.
When making modifications to the list of declarations, the new order
must be captured for when it must be printed. For each list of
declarations (binds and sigs for a HsValBind) we can just store the
list in order.
To recreate the list when printing, we must merge them, and this is
what the AnnSortKey records. It used to be indexed by SrcSpan, we now
simply index by a marker as to which list to take the next item from.
- - - - -
e7db36c1 by sheaf at 2023-08-23T08:41:28-04:00
Don't attempt pattern synonym error recovery
This commit gets rid of the pattern synonym error recovery mechanism
(recoverPSB). The rationale is that the fake pattern synonym binding
that the recovery mechanism introduced could lead to undesirable
knock-on errors, and it isn't really feasible to conjure up a
satisfactory binding as pattern synonyms can be used both in expressions
and patterns.
See Note [Pattern synonym error recovery] in GHC.Tc.TyCl.PatSyn.
It isn't such a big deal to eagerly fail compilation on a pattern synonym
that doesn't typecheck anyway.
Fixes #23467
- - - - -
6ccd9d65 by Ben Gamari at 2023-08-23T08:42:05-04:00
base: Don't use Data.ByteString.Internals.memcpy
This function is now deprecated from `bytestring`. Use
`Foreign.Marshal.Utils.copyBytes` instead.
Fixes #23880.
- - - - -
0bfa0031 by Matthew Pickering at 2023-08-23T13:43:48-04:00
hadrian: Uniformly pass buildOptions to all builders in runBuilder
In Builder.hs, runBuilderWith mostly ignores the buildOptions in BuildInfo.
This leads to hard to diagnose bugs as any build options you pass with
runBuilderWithCmdOptions are ignored for many builders.
Solution: Uniformly pass buildOptions to the invocation of cmd.
Fixes #23845
- - - - -
9cac8f11 by Matthew Pickering at 2023-08-23T13:43:48-04:00
Abstract windows toolchain setup
This commit splits up the windows toolchain setup logic into two
functions.
* FP_INSTALL_WINDOWS_TOOLCHAIN - deals with downloading the toolchain if
it isn't already downloaded
* FP_SETUP_WINDOWS_TOOLCHAIN - sets the environment variables to point
to the correct place
FP_SETUP_WINDOWS_TOOLCHAIN is abstracted from the location of the mingw
toolchain and also the eventual location where we will install the
toolchain in the installed bindist.
This is the first step towards #23608
- - - - -
6c043187 by Matthew Pickering at 2023-08-23T13:43:48-04:00
Generate build.mk for bindists
The config.mk.in script was relying on some variables which were
supposed to be set by build.mk but therefore never were when used to
install a bindist.
Specifically
* BUILD_PROF_LIBS to determine whether we had profiled libraries or not
* DYNAMIC_GHC_PROGRAMS to determine whether we had shared libraries or
not
Not only were these never set but also not really accurate because you
could have shared libaries but still statically linked ghc executable.
In addition variables like GhcLibWays were just never used, so those
have been deleted from the script.
Now instead we generate a build.mk file which just directly specifies
which RtsWays we have supplied in the bindist and whether we have
DYNAMIC_GHC_PROGRAMS.
- - - - -
fe23629b by Matthew Pickering at 2023-08-23T13:43:48-04:00
hadrian: Add reloc-binary-dist-* targets
This adds a command line option to build a "relocatable" bindist.
The bindist is created by first creating a normal bindist and then
installing it using the `RelocatableBuild=YES` option. This creates a
bindist without any wrapper scripts pointing to the libdir.
The motivation for this feature is that we want to ship relocatable
bindists on windows and this method is more uniform than the ad-hoc
method which lead to bugs such as #23608 and #23476
The relocatable bindist can be built with the "reloc-binary-dist" target
and supports the same suffixes as the normal "binary-dist" command to
specify the compression style.
- - - - -
41cbaf44 by Matthew Pickering at 2023-08-23T13:43:48-04:00
packaging: Fix installation scripts on windows/RelocatableBuild case
This includes quite a lot of small fixes which fix the installation
makefile to work on windows properly. This also required fixing the
RelocatableBuild variable which seemed to have been broken for a long
while.
Sam helped me a lot writing this patch by providing a windows machine to
test the changes. Without him it would have taken ages to tweak
everything.
Co-authored-by: sheaf <sam.derbyshire at gmail.com>
- - - - -
03474456 by Matthew Pickering at 2023-08-23T13:43:48-04:00
ci: Build relocatable bindist on windows
We now build the relocatable bindist target on windows, which means we
test and distribute the new method of creating a relocatable bindist.
- - - - -
d0b48113 by Matthew Pickering at 2023-08-23T13:43:48-04:00
hadrian: Add error when trying to build binary-dist target on windows
The binary dist produced by `binary-dist` target doesn't work on windows
because of the wrapper script the makefile installs. In order to not
surprise any packagers we just give an error if someone tries to build
the old binary-dist target rather than the reloc-binary-dist target.
- - - - -
7cbf9361 by Matthew Pickering at 2023-08-23T13:43:48-04:00
hadrian: Remove query' logic to use tooldir
- - - - -
03fad42e by Matthew Pickering at 2023-08-23T13:43:48-04:00
configure: Set WindresCmd directly and removed unused variables
For some reason there was an indirection via the Windres variable before
setting WindresCmd. That indirection led to #23855.
I then also noticed that these other variables were just not used
anywhere when trying to work out what the correct condition was for this
bit of the configure script.
- - - - -
c82770f5 by sheaf at 2023-08-23T13:43:48-04:00
Apply shellcheck suggestion to SUBST_TOOLDIR
- - - - -
896e35e5 by sheaf at 2023-08-23T13:44:34-04:00
Compute hints from TcSolverReportMsg
This commit changes how hints are handled in conjunction with
constraint solver report messages.
Instead of storing `[GhcHint]` in the TcRnSolverReport error constructor,
we compute the hints depending on the underlying TcSolverReportMsg.
This disentangles the logic and makes it easier to add new hints for
certain errors.
- - - - -
a05cdaf0 by Alexander Esgen at 2023-08-23T13:45:16-04:00
users-guide: remove note about fatal Haddock parse failures
- - - - -
4908d798 by Ben Gamari at 2023-08-23T17:36:41-04:00
base: Introduce Data.Enum
- - - - -
f59707c7 by Ben Gamari at 2023-08-23T17:36:41-04:00
base: Add export list to GHC.Num.Integer
- - - - -
b1054053 by Ben Gamari at 2023-08-23T17:36:41-04:00
base: Add export list to GHC.Num
- - - - -
6baa481d by Ben Gamari at 2023-08-23T17:36:41-04:00
base: Add export list to GHC.Num.Natural
- - - - -
2ac15233 by Ben Gamari at 2023-08-23T17:36:41-04:00
base: Add export list to GHC.Float
- - - - -
f3c489de by Ben Gamari at 2023-08-23T17:36:41-04:00
base: Add export list to GHC.Real
- - - - -
94f59eaa by Ben Gamari at 2023-08-23T17:36:41-04:00
base: Eliminate module reexport in GHC.Exception
The metric increase here isn't strictly due to this commit but it's a
rather small, incidental change.
Metric Increase:
T8095
T13386
Metric Decrease:
T8095
T13386
T18304
- - - - -
be1fc7df by Ben Gamari at 2023-08-23T17:36:41-04:00
base: Add disclaimers in internal modules
To warn users that these modules are internal and their interfaces may
change with little warning.
As proposed in Core Libraries Committee #146 [CLC146].
[CLC146]: https://github.com/haskell/core-libraries-committee/issues/146
- - - - -
0326f3f4 by sheaf at 2023-08-23T17:37:29-04:00
Bump Cabal submodule
We need to bump the Cabal submodule to include commit ec75950
which fixes an issue with a dodgy import Rep(..) which relied
on GHC bug #23570
- - - - -
0504cd08 by Facundo Domínguez at 2023-08-23T17:38:11-04:00
Fix typos in the documentation of Data.OldList.permutations
- - - - -
1420b8cb by Antoine Leblanc at 2023-08-24T16:18:17-04:00
Be more eager in TyCon boot validity checking
This commit performs boot-file consistency checking for TyCons into
checkValidTyCl. This ensures that we eagerly catch any mismatches,
which prevents the compiler from seeing these inconsistencies and
panicking as a result.
See Note [TyCon boot consistency checking] in GHC.Tc.TyCl.
Fixes #16127
- - - - -
d99c816f by Finley McIlwaine at 2023-08-24T16:18:55-04:00
Refactor estimation of stack info table provenance
This commit greatly refactors the way we compute estimated provenance for stack
info tables. Previously, this process was done using an entirely separate traversal
of the whole Cmm code stream to build the map from info tables to source locations.
The separate traversal is now fused with the Cmm code generation pipeline in
GHC.Driver.Main.
This results in very significant code generation speed ups when -finfo-table-map is
enabled. In testing, this patch reduces code generation times by almost 30% with
-finfo-table-map and -O0, and 60% with -finfo-table-map and -O1 or -O2 .
Fixes #23103
- - - - -
d3e0124c by Finley McIlwaine at 2023-08-24T16:18:55-04:00
Add a test checking overhead of -finfo-table-map
We want to make sure we don't end up with poor codegen performance resulting from
-finfo-table-map again as in #23103. This test adds a performance test tracking
total allocations while compiling ExactPrint with -finfo-table-map.
- - - - -
fcfc1777 by Ben Gamari at 2023-08-25T10:58:16-04:00
llvmGen: Add export list to GHC.Llvm.MetaData
- - - - -
5880fff6 by Ben Gamari at 2023-08-25T10:58:16-04:00
llvmGen: Allow LlvmLits in MetaExprs
This omission appears to be an oversight.
- - - - -
86ce92a2 by Ben Gamari at 2023-08-25T10:58:16-04:00
compiler: Move platform feature predicates to GHC.Driver.DynFlags
These are useful in `GHC.Driver.Config.*`.
- - - - -
a6a38742 by Ben Gamari at 2023-08-25T10:58:16-04:00
llvmGen: Introduce infrastructure for module flag metadata
- - - - -
e9af2cf3 by Ben Gamari at 2023-08-25T10:58:16-04:00
llvmGen: Don't pass stack alignment via command line
As of https://reviews.llvm.org/D103048 LLVM no longer supports the
`-stack-alignment=...` flag. Instead this information is passed via a
module flag metadata node.
This requires dropping support for LLVM 11 and 12.
Fixes #23870
- - - - -
a936f244 by Alan Zimmerman at 2023-08-25T10:58:56-04:00
EPA: Keep track of "in" token for WarningTxt category
A warning can now be written with a category, e.g.
{-# WARNInG in "x-c" e "d" #-}
Keep track of the location of the 'in' keyword and string, as well as
the original SourceText of the label, in case it uses character escapes.
- - - - -
3df8a653 by Matthew Pickering at 2023-08-25T17:42:18-04:00
Remove redundant import in InfoTableProv
The copyBytes function is provided by the import of Foreign.
Fixes #23889
- - - - -
d6f807ec by Ben Gamari at 2023-08-25T17:42:54-04:00
gitlab/issue-template: Mention report-a-bug
- - - - -
50b9f75d by Artin Ghasivand at 2023-08-26T20:02:50+03:30
Added StandaloneKindSignature examples to replace CUSKs ones
- - - - -
2f6309a4 by Vladislav Zavialov at 2023-08-27T03:47:37-04:00
Remove outdated CPP in compiler/* and template-haskell/*
The boot compiler was bumped to 9.4 in cebb5819b43.
There is no point supporting older GHC versions with CPP.
- - - - -
5248fdf7 by Zubin Duggal at 2023-08-28T15:01:09+05:30
testsuite: Add regression test for #23861
Simon says this was fixed by
commit 8d68685468d0b6e922332a3ee8c7541efbe46137
Author: sheaf <sam.derbyshire at gmail.com>
Date: Fri Aug 4 15:28:45 2023 +0200
Remove zonk in tcVTA
- - - - -
b6903f4d by Zubin Duggal at 2023-08-28T12:33:58-04:00
testsuite: Add regression test for #23864
Simon says this was fixed by
commit 59202c800f2c97c16906120ab2561f6e1556e4af
Author: Sebastian Graf <sebastian.graf at kit.edu>
Date: Fri Mar 31 17:35:22 2023 +0200
CorePrep: Eliminate EmptyCase and unsafeEqualityProof in CoreToStg instead
We eliminate EmptyCase by way of `coreToStg (Case e _ _ []) = coreToStg e` now.
The main reason is that it plays far better in conjunction with eta expansion
(as we aim to do for arguments in CorePrep, #23083), because we can discard
any arguments, `(case e of {}) eta == case e of {}`, whereas in `(e |> co) eta`
it's impossible to discard the argument.
- - - - -
9eecdf33 by sheaf at 2023-08-28T18:54:06+00:00
Remove ScopedTypeVariables => TypeAbstractions
This commit implements [amendment 604](https://github.com/ghc-proposals/ghc-proposals/pull/604/)
to [GHC proposal 448](https://github.com/ghc-proposals/ghc-proposals/pull/448)
by removing the implication of language extensions
ScopedTypeVariables => TypeAbstractions
To limit breakage, we now allow type arguments in constructor patterns
when both ScopedTypeVariables and TypeApplications are enabled, but
we emit a warning notifying the user that this is deprecated behaviour
that will go away starting in GHC 9.12.
Fixes #23776
- - - - -
fadd5b4d by sheaf at 2023-08-28T18:54:06+00:00
.stderr: ScopedTypeVariables =/> TypeAbstractions
This commit accepts testsuite changes for the changes in the previous
commit, which mean that TypeAbstractions is no longer implied by
ScopedTypeVariables.
- - - - -
4f5fb500 by Greg Steuck at 2023-08-29T07:55:13-04:00
Repair `codes` test on OpenBSD by explicitly requesting extended RE
- - - - -
6bbde581 by Vasily Sterekhov at 2023-08-29T12:06:58-04:00
Add test for #23540
`T23540.hs` makes use of `explainEv` from `HieQueries.hs`, so
`explainEv` has been moved to `TestUtils.hs`.
- - - - -
257bb3bd by Vasily Sterekhov at 2023-08-29T12:06:58-04:00
Add test for #23120
- - - - -
4f192947 by Vasily Sterekhov at 2023-08-29T12:06:58-04:00
Make some evidence uses reachable by toHie
Resolves #23540, #23120
This adds spans to certain expressions in the typechecker and renamer,
and lets 'toHie' make use of those spans. Therefore the relevant
evidence uses for the following syntax will now show up under the
expected nodes in 'HieAst's:
- Overloaded literals ('IsString', 'Num', 'Fractional')
- Natural patterns and N+k patterns ('Eq', 'Ord', and instances from the
overloaded literals being matched on)
- Arithmetic sequences ('Enum')
- Monadic bind statements ('Monad')
- Monadic body statements ('Monad', 'Alternative')
- ApplicativeDo ('Applicative', 'Functor')
- Overloaded lists ('IsList')
Also see Note [Source locations for implicit function calls]
In the process of handling overloaded lists I added an extra 'SrcSpan'
field to 'VAExpansion' - this allows us to more accurately reconstruct
the locations from the renamer in 'rebuildHsApps'. This also happens to
fix #23120.
See the additions to Note [Looking through HsExpanded]
- - - - -
fe9fcf9d by Sylvain Henry at 2023-08-29T12:07:50-04:00
ghc-heap: rename C file (fix #23898)
- - - - -
b60d6576 by Krzysztof Gogolewski at 2023-08-29T12:08:29-04:00
Misc cleanup
- Builtin.PrimOps: ReturnsAlg was used only for unboxed tuples.
Rename to ReturnsTuple.
- Builtin.Utils: use SDoc for a panic message.
The comment about <<details unavailable>> was obsoleted by e8d356773b56.
- TagCheck: fix wrong logic. It was zipping a list 'args' with its
version 'args_cmm' after filtering.
- Core.Type: remove an outdated 1999 comment about unlifted polymorphic types
- hadrian: remove leftover debugging print
- - - - -
3054fd6d by Krzysztof Gogolewski at 2023-08-29T12:09:08-04:00
Add a regression test for #23903
The bug has been fixed by commit bad2f8b8aa8424.
- - - - -
21584b12 by Ben Gamari at 2023-08-29T19:52:02-04:00
README: Refer to ghc-hq repository for contributor and governance information
- - - - -
e542d590 by sheaf at 2023-08-29T19:52:40-04:00
Export setInertSet from GHC.Tc.Solver.Monad
We used to export getTcSInerts and setTcSInerts from GHC.Tc.Solver.Monad.
These got renamed to getInertSet/setInertSet in e1590ddc. That commit also removed
the export of setInertSet, but that function is useful for the GHC API.
- - - - -
694ec5b1 by sheaf at 2023-08-30T10:18:32-04:00
Don't bundle children for non-parent Avails
We used to bundle all children of the parent Avail with things that
aren't the parent, e.g. with
class C a where
type T a
meth :: ..
we would bundle the whole Avail (C, T, meth) with all of C, T and meth,
instead of only with C.
Avoiding this fixes #23570
- - - - -
d926380d by Krzysztof Gogolewski at 2023-08-30T10:19:08-04:00
Fix typos
- - - - -
d07080d2 by Josh Meredith at 2023-08-30T19:42:32-04:00
JS: Implement missing C functions `rename`, `realpath`, and `getcwd` (#23806)
- - - - -
e2940272 by David Binder at 2023-08-30T19:43:08-04:00
Bump submodules of hpc and hpc-bin to version 0.7.0.0
hpc 0.7.0.0 dropped SafeHaskell safety guarantees in order to simplify
compatibility with newer versions of the directory package which
dropped all SafeHaskell guarantees.
- - - - -
5d56d05c by David Binder at 2023-08-30T19:43:08-04:00
Bump hpc bound in ghc.cabal.in
- - - - -
99fff496 by Dominik Schrempf at 2023-08-31T00:04:46-04:00
ghc classes documentation: rm redundant comment
- - - - -
fe021bab by Dominik Schrempf at 2023-08-31T00:04:46-04:00
prelude documentation: various nits
- - - - -
48c84547 by Dominik Schrempf at 2023-08-31T00:04:46-04:00
integer documentation: minor corrections
- - - - -
20cd12f4 by Dominik Schrempf at 2023-08-31T00:04:46-04:00
real documentation: nits
- - - - -
dd39bdc0 by sheaf at 2023-08-31T00:05:27-04:00
Add a test for #21765
This issue (of reporting a constraint as being redundant even though
removing it causes typechecking to fail) was fixed in aed1974e.
This commit simply adds a regression test.
Fixes #21765
- - - - -
f1ec3628 by Bodigrim at 2023-08-31T23:53:30-04:00
Export foldl' from Prelude and bump submodules
See https://github.com/haskell/core-libraries-committee/issues/167 for discussion
Metric Decrease:
T8095
T13386
Metric Increase:
T13386
T8095
T8095 ghc/alloc decreased on x86_64, but increased on aarch64.
T13386 ghc/alloc decreased on x86_64-windows, but increased on other platforms.
Neither has anything to do with `foldl'`, so I conclude that both are flaky.
- - - - -
3181b97d by Gergő Érdi at 2023-08-31T23:54:06-04:00
Allow cross-tyvar defaulting proposals from plugins
Fixes #23832.
- - - - -
e4af506e by Sebastian Graf at 2023-09-01T14:29:12-04:00
Clarify Note [GlobalId/LocalId] after CorePrep (#23797)
Fixes #23797.
- - - - -
ac29787c by Sylvain Henry at 2023-09-01T14:30:02-04:00
Fix warning with UNPACK on sum type (#23921)
- - - - -
9765ac7b by Zubin Duggal at 2023-09-05T00:37:45-04:00
hadrian: track python dependencies in doc rules
- - - - -
1578215f by sheaf at 2023-09-05T00:38:26-04:00
Bump Haddock to fix #23616
This commit updates the Haddock submodule to include
the fix to #23616.
Fixes #23616
- - - - -
5a2fe35a by David Binder at 2023-09-05T00:39:07-04:00
Fix example in GHC user guide in SafeHaskell section
The example given in the SafeHaskell section uses an implementation of
Monad which no longer works. This MR removes the non-canonical return
instance and adds the necessary instances of Functor and Applicative.
- - - - -
291d81ae by Matthew Pickering at 2023-09-05T14:03:10-04:00
driver: Check transitive closure of haskell package dependencies when deciding whether to relink
We were previously just checking whether direct package dependencies had
been modified. This caused issues when compiling without optimisations
as we wouldn't relink the direct dependency if one of its dependenices
changed.
Fixes #23724
- - - - -
35da0775 by Krzysztof Gogolewski at 2023-09-05T14:03:47-04:00
Re-export GHC.Utils.Panic.Plain from GHC.Utils.Panic
Fixes #23930
- - - - -
3930d793 by Jaro Reinders at 2023-09-06T18:42:55-04:00
Make STG rewriter produce updatable closures
- - - - -
0104221a by Krzysztof Gogolewski at 2023-09-06T18:43:32-04:00
configure: update message to use hadrian (#22616)
- - - - -
b34f8586 by Alan Zimmerman at 2023-09-07T10:58:38-04:00
EPA: Incorrect locations for UserTyVar with '@'
In T13343.hs, the location for the @ is not within the span of the
surrounding UserTyVar.
type Bad @v = (forall (v1 :: RuntimeRep) (a1 :: TYPE v). a1) :: TYPE v
Widen it so it is captured.
Closes #23887
- - - - -
8046f020 by Finley McIlwaine at 2023-09-07T10:59:15-04:00
Bump haddock submodule to fix #23920
Removes the fake export of `FUN` from Prelude. Fixes #23920.
Bumps haddock submodule.
- - - - -
e0aa8c6e by Krzysztof Gogolewski at 2023-09-07T11:00:03-04:00
Fix wrong role in mkSelCo_maybe
In the Lint failure in #23938, we start with a coercion Refl :: T a ~R T a,
and call mkSelCo (SelTyCon 1 nominal) Refl.
The function incorrectly returned Refl :: a ~R a. The returned role
should be nominal, according to the SelCo rule:
co : (T s1..sn) ~r0 (T t1..tn)
r = tyConRole tc r0 i
----------------------------------
SelCo (SelTyCon i r) : si ~r ti
In this test case, r is nominal while r0 is representational.
- - - - -
1d92f2df by Gergő Érdi at 2023-09-08T04:04:30-04:00
If we have multiple defaulting plugins, then we should zonk in between them
after any defaulting has taken place, to avoid a defaulting plugin seeing
a metavariable that has already been filled.
Fixes #23821.
- - - - -
eaee4d29 by Gergő Érdi at 2023-09-08T04:04:30-04:00
Improvements to the documentation of defaulting plugins
Based on @simonpj's draft and comments in !11117
- - - - -
ede3df27 by Alan Zimmerman at 2023-09-08T04:05:06-04:00
EPA: Incorrect span for LWarnDec GhcPs
The code (from T23465.hs)
{-# WARNInG in "x-c" e "d" #-}
e = e
gives an incorrect span for the LWarnDecl GhcPs
Closes #23892
It also fixes the Test23465/Test23464 mixup
- - - - -
a0ccef7a by Krzysztof Gogolewski at 2023-09-08T04:05:42-04:00
Valid hole fits: don't suggest unsafeCoerce (#17940)
- - - - -
88b942c4 by Oleg Grenrus at 2023-09-08T19:58:42-04:00
Add warning for badly staged types.
Resolves #23829.
The stage violation results in out-of-bound names in splices.
Technically this is an error, but someone might rely on this!?
Internal changes:
- we now track stages for TyVars.
- thLevel (RunSplice _) = 0, instead of panic, as reifyInstances does
in fact rename its argument type, and it can contain variables.
- - - - -
9861f787 by Ben Gamari at 2023-09-08T19:59:19-04:00
rts: Fix invalid symbol type
I suspect this code is dead since we haven't observed this failing
despite the obviously incorrect macro name.
- - - - -
03ed6a9a by Ben Gamari at 2023-09-08T19:59:19-04:00
testsuite: Add simple test exercising C11 atomics in GHCi
See #22012.
- - - - -
1aa5733a by Ben Gamari at 2023-09-08T19:59:19-04:00
rts/RtsSymbols: Add AArch64 outline atomic operations
Fixes #22012 by adding the symbols described in
https://github.com/llvm/llvm-project/blob/main/llvm/docs/Atomics.rst#libcalls-atomic.
Ultimately this would be better addressed by #22011, but this is a first
step in the right direction and fixes the immediate symptom.
Note that we dropped the `__arch64_cas16` operations as these provided
by all platforms's compilers. Also, we don't link directly against the
libgcc/compiler-rt definitions but rather provide our own wrappers to
work around broken toolchains (e.g. https://bugs.gentoo.org/868018).
Generated via https://gitlab.haskell.org/ghc/ghc/-/snippets/5733.
- - - - -
8f7d3041 by Matthew Pickering at 2023-09-08T19:59:55-04:00
ci: Build debian12 and fedora38 bindists
This adds builds for the latest releases for fedora and debian
We build these bindists in nightly and release pipelines.
- - - - -
a1f0d55c by Felix Leitz at 2023-09-08T20:00:37-04:00
Fix documentation around extension implication for MultiParamTypeClasses/ConstrainedClassMethods.
- - - - -
98166389 by Teo Camarasu at 2023-09-12T04:30:54-04:00
docs: move -xn flag beside --nonmoving-gc
It makes sense to have these beside each other as they are aliases.
- - - - -
f367835c by Teo Camarasu at 2023-09-12T04:30:55-04:00
nonmoving: introduce a family of dense allocators
Supplement the existing power 2 sized nonmoving allocators with a family
of dense allocators up to a configurable threshold.
This should reduce waste from rounding up block sizes while keeping the
amount of allocator sizes manageable.
This patch:
- Adds a new configuration option `--nonmoving-dense-allocator-count`
to control the amount of these new dense allocators.
- Adds some constants to `NonmovingAllocator` in order to keep
marking fast with the new allocators.
Resolves #23340
- - - - -
2b07bf2e by Teo Camarasu at 2023-09-12T04:30:55-04:00
Add changelog entry for #23340
- - - - -
f96fe681 by sheaf at 2023-09-12T04:31:44-04:00
Use printGhciException in run{Stmt, Decls}
When evaluating statements in GHCi, we need to use printGhciException
instead of the printException function that GHC provides in order to
get the appropriate error messages that are customised for ghci use.
- - - - -
d09b932b by psilospore at 2023-09-12T04:31:44-04:00
T23686: Suggest how to enable Language Extension when in ghci
Fixes #23686
- - - - -
da30f0be by Matthew Craven at 2023-09-12T04:32:24-04:00
Unarise: Split Rubbish literals in function args
Fixes #23914. Also adds a check to STG lint that
these args are properly unary or nullary after unarisation
- - - - -
261b6747 by Matthew Pickering at 2023-09-12T04:33:04-04:00
darwin: Bump MAXOSX_DEPLOYMENT_TARGET to 10.13
This bumps the minumum supported version to 10.13 (High Sierra) which is
6 years old at this point.
Fixes #22938
- - - - -
f418f919 by Mario Blažević at 2023-09-12T04:33:45-04:00
Fix TH pretty-printing of nested GADTs, issue #23937
This commit fixes `Language.Haskell.TH.Ppr.pprint` so that it correctly
pretty-prints GADTs declarations contained within data family instances.
Fixes #23937
- - - - -
d7a64753 by John Ericson at 2023-09-12T04:34:20-04:00
Put hadrian non-bootstrap plans through `jq`
This makes it possible to review changes with conventional diffing
tools.
This is picking up where ad8cfed4195b1bbfc15b841f010e75e71f63157d left
off.
- - - - -
ff0a709a by Sylvain Henry at 2023-09-12T08:46:28-04:00
JS: fix some tests
- Tests using Setup programs need to pass --with-hc-pkg
- Several other fixes
See https://gitlab.haskell.org/ghc/ghc/-/wikis/javascript-backend/bug_triage
for the current status
- - - - -
fc86f0e7 by Krzysztof Gogolewski at 2023-09-12T08:47:04-04:00
Fix in-scope set assertion failure (#23918)
Patch by Simon
- - - - -
21a906c2 by Matthew Pickering at 2023-09-12T17:21:04+02:00
Add -Winconsistent-flags warning
The warning fires when inconsistent command line flags are passed.
For example:
* -dynamic-too and -dynamic
* -dynamic-too on windows
* -O and --interactive
* etc
This is on by default and allows users to control whether the warning is
displayed and whether it should be an error or not.
Fixes #22572
- - - - -
dfc4f426 by Krzysztof Gogolewski at 2023-09-12T20:31:35-04:00
Avoid serializing BCOs with the internal interpreter
Refs #23919
- - - - -
9217950b by Finley McIlwaine at 2023-09-13T08:06:03-04:00
Fix numa auto configure
- - - - -
98e7c1cf by Simon Peyton Jones at 2023-09-13T08:06:40-04:00
Add -fno-cse to T15426 and T18964
This -fno-cse change is to avoid these performance tests depending on
flukey CSE stuff. Each contains several independent tests, and we don't
want them to interact.
See #23925.
By killing CSE we expect a 400% increase in T15426, and 100% in T18964.
Metric Increase:
T15426
T18964
- - - - -
236a134e by Simon Peyton Jones at 2023-09-13T08:06:40-04:00
Tiny refactor
canEtaReduceToArity was only called internally, and always with
two arguments equal to zero. This patch just specialises the
function, and renames it to cantEtaReduceFun.
No change in behaviour.
- - - - -
56b403c9 by Ben Gamari at 2023-09-13T19:21:36-04:00
spec-constr: Lift argument limit for SPEC-marked functions
When the user adds a SPEC argument to a function, they are informing us
that they expect the function to be specialised. However, previously
this instruction could be preempted by the specialised-argument limit
(sc_max_args). Fix this.
This fixes #14003.
- - - - -
6840012e by Simon Peyton Jones at 2023-09-13T19:22:13-04:00
Fix eta reduction
Issue #23922 showed that GHC was bogusly eta-reducing a join point.
We should never eta-reduce (\x -> j x) to j, if j is a join point.
It is extremly difficult to trigger this bug. It took me 45 mins of
trying to make a small tests case, here immortalised as T23922a.
- - - - -
e5c00092 by Andreas Klebinger at 2023-09-14T08:57:43-04:00
Profiling: Properly escape characters when using `-pj`.
There are some ways in which unusual characters like quotes or others
can make it into cost centre names. So properly escape these.
Fixes #23924
- - - - -
ec490578 by Ellie Hermaszewska at 2023-09-14T08:58:24-04:00
Use clearer example variable names for bool eliminator
- - - - -
5126a2fe by Sylvain Henry at 2023-09-15T11:18:02-04:00
Add missing int64/word64-to-double/float rules (#23907)
CLC proposal: https://github.com/haskell/core-libraries-committee/issues/203
- - - - -
566ef411 by Mario Blažević at 2023-09-15T11:18:43-04:00
Fix and test TH pretty-printing of type operator role declarations
This commit fixes and tests `Language.Haskell.TH.Ppr.pprint` so that it
correctly pretty-prints `type role` declarations for operator names.
Fixes #23954
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8e05c54a by Simon Peyton Jones at 2023-09-16T01:42:33-04:00
Use correct FunTyFlag in adjustJoinPointType
As the Lint error in #23952 showed, the function adjustJoinPointType
was failing to adjust the FunTyFlag when adjusting the type.
I don't think this caused the seg-fault reported in the ticket,
but it is definitely. This patch fixes it.
It is tricky to come up a small test case; Krzysztof came up with
this one, but it only triggers a failure in GHC 9.6.
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778c84b6 by Pierre Le Marre at 2023-09-16T01:43:15-04:00
Update to Unicode 15.1.0
See: https://www.unicode.org/versions/Unicode15.1.0/
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f9d79a6c by Alan Zimmerman at 2023-09-18T00:00:14-04:00
EPA: track unicode version for unrestrictedFunTyCon
Closes #23885
Updates haddock submodule
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9374f116 by Bodigrim at 2023-09-18T00:00:54-04:00
Bump parsec submodule to allow text-2.1 and bytestring-0.12
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7ca0240e by Ben Gamari at 2023-09-18T15:16:48-04:00
base: Advertise linear time of readFloat
As noted in #23538, `readFloat` has runtime that scales nonlinearly in
the size of its input. Consequently, its use on untrusted input can
be exploited as a denial-of-service vector. Point this out and suggest
use of `read` instead.
See #23538.
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f3f58f13 by Simon Peyton Jones at 2023-09-18T15:17:24-04:00
Remove dead code GHC.CoreToStg.Prep.canFloat
This function never fires, so we can delete it: #23965.
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ccab5b15 by Ben Gamari at 2023-09-18T15:18:02-04:00
base/changelog: Move fix for #23907 to 9.8.1 section
Since the fix was backported to 9.8.1
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51b57d65 by Matthew Pickering at 2023-09-19T08:44:31-04:00
Add aarch64 alpine bindist
This is dynamically linked and makes creating statically linked
executables more straightforward.
Fixes #23482
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02c87213 by Matthew Pickering at 2023-09-19T08:44:31-04:00
Add aarch64-deb11 bindist
This adds a debian 11 release job for aarch64.
Fixes #22005
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8b61dfd6 by Alexis King at 2023-09-19T08:45:13-04:00
Don’t store the async exception masking state in CATCH frames
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f27db768 by Ben Gamari at 2023-09-19T13:08:12-04:00
rts: Fix data race in threadPaused
This only affects an assertion in the debug RTS and only needs relaxed
ordering.
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17be9ff2 by Ben Gamari at 2023-09-19T13:08:12-04:00
cmm: Introduce MO_RelaxedRead
In hand-written Cmm it can sometimes be necessary to atomically load
from memory deep within an expression (e.g. see the `CHECK_GC` macro).
This MachOp provides a convenient way to do so without breaking the
expression into multiple statements.
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d0380ba1 by Ben Gamari at 2023-09-19T13:08:13-04:00
rts: Silence spurious data races in ticky counters
Previously we would use non-atomic accesses when bumping ticky counters,
which would result in spurious data race reports from ThreadSanitizer
when the threaded RTS was in use.
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9d6f061e by Ben Gamari at 2023-09-19T13:08:13-04:00
codeGen: Use relaxed accesses in ticky bumping
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10ac038c by Ben Gamari at 2023-09-19T13:44:14-04:00
rts: Fix data race in Interpreter's preemption check
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039b8c78 by Ben Gamari at 2023-09-19T13:44:14-04:00
rts: Fix data race in threadStatus#
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2d7fb9e3 by Ben Gamari at 2023-09-19T13:44:14-04:00
rts: Fix data race in CHECK_GC
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c97349f4 by Ben Gamari at 2023-09-19T13:44:14-04:00
base: use atomic write when updating timer manager
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eabac28d by Ben Gamari at 2023-09-19T13:44:14-04:00
Use relaxed atomics to manipulate TSO status fields
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5dfa1228 by Ben Gamari at 2023-09-19T13:44:14-04:00
rts: Add necessary barriers when manipulating TSO owner
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65711d94 by Ben Gamari at 2023-09-19T13:44:14-04:00
rts: Fix synchronization on thread blocking state
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36dc6fc8 by Ben Gamari at 2023-09-19T13:44:14-04:00
rts: Use relaxed ordering on dirty/clean info tables updates
When changing the dirty/clean state of a mutable object we needn't have
any particular ordering.
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81c6973c by Ben Gamari at 2023-09-19T13:44:14-04:00
Wordsmith TSAN Note
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527c0db5 by Ben Gamari at 2023-09-19T13:44:14-04:00
codeGen: Use relaxed-read in closureInfoPtr
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2fe7018c by Ben Gamari at 2023-09-19T13:44:14-04:00
Fix thunk update ordering
Previously we attempted to ensure soundness of concurrent thunk update
by synchronizing on the access of the thunk's info table pointer field.
This was believed to be sufficient since the indirectee (which may
expose a closure allocated by another core) would not be examined
until the info table pointer update is complete.
However, it turns out that this can result in data races in the presence
of multiple threads racing a update a single thunk. For instance,
consider this interleaving under the old scheme:
Thread A Thread B
--------- ---------
t=0 Enter t
1 Push update frame
2 Begin evaluation
4 Pause thread
5 t.indirectee=tso
6 Release t.info=BLACKHOLE
7 ... (e.g. GC)
8 Resume thread
9 Finish evaluation
10 Relaxed t.indirectee=x
11 Load t.info
12 Acquire fence
13 Inspect t.indirectee
14 Release t.info=BLACKHOLE
Here Thread A enters thunk `t` but is soon paused, resulting in `t`
being lazily blackholed at t=6. Then, at t=10 Thread A finishes
evaluation and updates `t.indirectee` with a relaxed store.
Meanwhile, Thread B enters the blackhole. Under the old scheme this
would introduce an acquire-fence but this would only synchronize with
Thread A at t=6. Consequently, the result of the evaluation, `x`, is not
visible to Thread B, introducing a data race.
We fix this by treating the `indirectee` field as we do all other
mutable fields. This means we must always access this field with
acquire-loads and release-stores.
See #23185.
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edbba02a by Ben Gamari at 2023-09-19T13:44:14-04:00
STM: Use acquire loads when possible
Full sequential consistency is not needed here.
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aa1e5a23 by Ben Gamari at 2023-09-19T13:44:14-04:00
rts/Messages: Fix data race
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14392ea5 by Ben Gamari at 2023-09-19T13:44:14-04:00
rts/Prof: Fix data race
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b364c664 by Ben Gamari at 2023-09-19T13:44:14-04:00
rts: Use fence rather than redundant load
Previously we would use an atomic load to ensure acquire ordering.
However, we now have `ACQUIRE_FENCE_ON`, which allows us to express this
more directly.
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124f7a53 by Ben Gamari at 2023-09-19T13:44:14-04:00
rts: Fix data races in profiling timer
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4e859cda by Ben Gamari at 2023-09-19T13:44:14-04:00
rts/RaiseAsync: Drop redundant release fence
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13 changed files:
- .gitignore
- .gitlab-ci.yml
- .gitlab/ci.sh
- .gitlab/generate-ci/gen_ci.hs
- .gitlab/generate-ci/generate-job-metadata
- .gitlab/generate-ci/generate-jobs
- .gitlab/issue_templates/bug.md
- .gitlab/jobs.yaml
- .gitlab/rel_eng/fetch-gitlab-artifacts/fetch_gitlab.py
- .gitlab/rel_eng/upload.sh
- README.md
- compiler/CodeGen.Platform.h
- compiler/GHC.hs
The diff was not included because it is too large.
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/a77612362422963349cd18d1f2dc36c2ba1f38e9...4e859cda5ba9fbc48c1dfe3e278944dd666f8bc3
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/a77612362422963349cd18d1f2dc36c2ba1f38e9...4e859cda5ba9fbc48c1dfe3e278944dd666f8bc3
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