| Commit message (Collapse) | Author | Age | Files | Lines |
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Related to a future change in Data.List,
https://downloads.haskell.org/ghc/8.10.3/docs/html/users_guide/using-warnings.html?highlight=wcompat#ghc-flag--Wcompat-unqualified-imports
Companion pull&merge requests:
- https://github.com/judah/haskeline/pull/153
- https://github.com/haskell/containers/pull/762
- https://gitlab.haskell.org/ghc/packages/hpc/-/merge_requests/9
After these the actual change in Data.List should be easy to do.
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Alt, AnnAlt and IfaceAlt were using triples. This patch makes them use
dedicated types so that we can try to make some fields strict (for
example) in the future.
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This patch fixes #19133 by using LitRubbish for strict constructor
fields, even if they are of lifted types. Previously LitRubbish
worked only for unlifted (but boxed) types.
The change is very easy, although I needed a boolean field in
LitRubbish to say whether or not it is lifted. (That seemed easier
than giving it another type argument.
This is preparing for Andreas's work on establishing the invariant
that strict constructor fields are always tagged and evaluated
(see #16970).
Meanwhile, nothing was actually wrong before, so there are no tests.
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[This is @Ericson2314 writing a commit message for @hsyl20's patch.]
(Progress towards #11953, #17377, #17375)
`Int64Rep` and `Word64Rep` are currently broken on 64-bit systems. This
is because they should use "native arg rep" but instead use "large arg
rep" as they do on 32-bit systems, which is either a non-concept or a
128-bit rep depending on one's vantage point.
Now, these reps currently aren't used during 64-bit compilation, so the
brokenness isn't observed, but I don't think that constitutes reasons
not to fix it. Firstly, the linked issues there is a clearly expressed
desire to use explicit-bitwidth constructs in more places. Secondly, per
[1], there are other bugs that *do* manifest from not threading
explicit-bitwidth information all the way through the compilation
pipeline. One can therefore view this as one piece of the larger effort
to do that, improve ergnomics, and squash remaining bugs.
Also, this is needed for !3658. I could just merge this as part of that,
but I'm keen on merging fixes "as they are ready" so the fixes that
aren't ready are isolated and easier to debug.
[1]: https://mail.haskell.org/pipermail/ghc-devs/2020-October/019332.html
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This replaces all Word<N> = W<N># Word# and Int<N> = I<N># Int# with
Word<N> = W<N># Word<N># and Int<N> = I<N># Int<N>#, thus providing us
with properly sized primitives in the codegenerator instead of pretending
they are all full machine words.
This came up when implementing darwinpcs for arm64. The darwinpcs reqires
us to pack function argugments in excess of registers on the stack. While
most procedure call standards (pcs) assume arguments are just passed in
8 byte slots; and thus the caller does not know the exact signature to make
the call, darwinpcs requires us to adhere to the prototype, and thus have
the correct sizes. If we specify CInt in the FFI call, it should correspond
to the C int, and not just be Word sized, when it's only half the size.
This does change the expected output of T16402 but the new result is no
less correct as it eliminates the narrowing (instead of the `and` as was
previously done).
Bumps the array, bytestring, text, and binary submodules.
Co-Authored-By: Ben Gamari <ben@well-typed.com>
Metric Increase:
T13701
T14697
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I was working on making DynFlags stateless (#17957), especially by
storing loaded plugins into HscEnv instead of DynFlags. It turned out to
be complicated because HscEnv is in GHC.Driver.Types but LoadedPlugin
isn't: it is in GHC.Driver.Plugins which depends on GHC.Driver.Types. I
didn't feel like introducing yet another hs-boot file to break the loop.
Additionally I remember that while we introduced the module hierarchy
(#13009) we talked about splitting GHC.Driver.Types because it contained
various unrelated types and functions, but we never executed. I didn't
feel like making GHC.Driver.Types bigger with more unrelated Plugins
related types, so finally I bit the bullet and split GHC.Driver.Types.
As a consequence this patch moves a lot of things. I've tried to put
them into appropriate modules but nothing is set in stone.
Several other things moved to avoid loops.
* Removed Binary instances from GHC.Utils.Binary for random compiler
things
* Moved Typeable Binary instances into GHC.Utils.Binary.Typeable: they
import a lot of things that users of GHC.Utils.Binary don't want to
depend on.
* put everything related to Units/Modules under GHC.Unit:
GHC.Unit.Finder, GHC.Unit.Module.{ModGuts,ModIface,Deps,etc.}
* Created several modules under GHC.Types: GHC.Types.Fixity, SourceText,
etc.
* Split GHC.Utils.Error (into GHC.Types.Error)
* Finally removed GHC.Driver.Types
Note that this patch doesn't put loaded plugins into HscEnv. It's left
for another patch.
Bump haddock submodule
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This widens LocalLabel to 2^16, avoiding the crash observed in #14334.
Closes #14334.
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[skip ci]
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The code that converts promoted tuple data constructors to
`IfaceType`s in `GHC.CoreToIface` was using `isTupleDataCon`, which
conflates boxed and unboxed tuple data constructors. To avoid this,
this patch introduces `isBoxedTupleDataCon`, which is like
`isTupleDataCon` but only works for _boxed_ tuple data constructors.
While I was in town, I was horribly confused by the fact that there
were separate functions named `isUnboxedTupleCon` and
`isUnboxedTupleTyCon` (similarly, `isUnboxedSumCon` and
`isUnboxedSumTyCon`). It turns out that the former only works for
data constructors, despite its very general name! I opted to rename
`isUnboxedTupleCon` to `isUnboxedTupleDataCon` (similarly, I renamed
`isUnboxedSumCon` to `isUnboxedSumDataCon`) to avoid this potential
confusion, as well as to be more consistent with
the naming convention I used for `isBoxedTupleDataCon`.
Fixes #18644.
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Move uniqFromMask from Unique.Supply to Unique.
Move the the functions that call mkUnique from Unique to Builtin.Uniques
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Platform constant wrappers took a DynFlags parameter, hence implicitly
used the target platform constants. We removed them to allow support
for several platforms at once (#14335) and to avoid having to pass
the full DynFlags to every function (#17957).
Metric Decrease:
T4801
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There's one backwards compatibility issue: GHC.Prim no longer exports
Void#, we now manually re-export it from GHC.Exts.
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Thanks to ghc-bignum, the compiler can be simplified:
* Types and constructors of Integer and Natural can be wired-in. It
means that we don't have to query them from interfaces. It also means
that numeric literals don't have to carry their type with them.
* The same code is used whatever ghc-bignum backend is enabled. In
particular, conversion of bignum literals into final Core expressions
is now much more straightforward. Bignum closure inspection too.
* GHC itself doesn't depend on any integer-* package anymore
* The `integerLibrary` setting is gone.
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This implements several general performance improvements to GHC,
to offset the effect of the linear types change.
General optimisations:
- Add a `coreFullView` function which iterates `coreView` on the
head. This avoids making function recursive solely because the
iterate `coreView` themselves. As a consequence, this functions can
be inlined, and trigger case-of-known constructor (_e.g._
`kindRep_maybe`, `isLiftedRuntimeRep`, `isMultiplicityTy`,
`getTyVar_maybe`, `splitAppTy_maybe`, `splitFunType_maybe`,
`tyConAppTyCon_maybe`). The common pattern about all these functions
is that they are almost always used as views, and immediately
consumed by a case expression. This commit also mark them asx `INLINE`.
- In `subst_ty` add a special case for nullary `TyConApp`, which avoid
allocations altogether.
- Use `mkTyConApp` in `subst_ty` for the general `TyConApp`. This
required quite a bit of module shuffling.
case. `myTyConApp` enforces crucial sharing, which was lost during
substitution. See also !2952 .
- Make `subst_ty` stricter.
- In `eqType` (specifically, in `nonDetCmpType`), add a special case,
tested first, for the very common case of nullary `TyConApp`.
`nonDetCmpType` has been made `INLINE` otherwise it is actually a
regression. This is similar to the optimisations in !2952.
Linear-type specific optimisations:
- Use `tyConAppTyCon_maybe` instead of the more complex `eqType` in
the definition of the pattern synonyms `One` and `Many`.
- Break the `hs-boot` cycles between `Multiplicity.hs` and `Type.hs`:
`Multiplicity` now import `Type` normally, rather than from the
`hs-boot`. This way `tyConAppTyCon_maybe` can inline properly in the
`One` and `Many` pattern synonyms.
- Make `updateIdTypeAndMult` strict in its type and multiplicity
- The `scaleIdBy` gets a specialised definition rather than being an
alias to `scaleVarBy`
- `splitFunTy_maybe` is given the type `Type -> Maybe (Mult, Type,
Type)` instead of `Type -> Maybe (Scaled Type, Type)`
- Remove the `MultMul` pattern synonym in favour of a view `isMultMul`
because pattern synonyms appear not to inline well.
- in `eqType`, in a `FunTy`, compare multiplicities last: they are
almost always both `Many`, so it helps failing faster.
- Cache `manyDataConTy` in `mkTyConApp`, to make sure that all the
instances of `TyConApp ManyDataConTy []` are physically the same.
This commit has been authored by
* Richard Eisenberg
* Krzysztof Gogolewski
* Arnaud Spiwack
Metric Decrease:
haddock.base
T12227
T12545
T12990
T1969
T3064
T5030
T9872b
Metric Increase:
haddock.base
haddock.Cabal
haddock.compiler
T12150
T12234
T12425
T12707
T13035
T13056
T15164
T16190
T18304
T1969
T3064
T3294
T5631
T5642
T5837
T6048
T9020
T9233
T9675
T9872a
T9961
WWRec
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This is the first step towards implementation of the linear types proposal
(https://github.com/ghc-proposals/ghc-proposals/pull/111).
It features
* A language extension -XLinearTypes
* Syntax for linear functions in the surface language
* Linearity checking in Core Lint, enabled with -dlinear-core-lint
* Core-to-core passes are mostly compatible with linearity
* Fields in a data type can be linear or unrestricted; linear fields
have multiplicity-polymorphic constructors.
If -XLinearTypes is disabled, the GADT syntax defaults to linear fields
The following items are not yet supported:
* a # m -> b syntax (only prefix FUN is supported for now)
* Full multiplicity inference (multiplicities are really only checked)
* Decent linearity error messages
* Linear let, where, and case expressions in the surface language
(each of these currently introduce the unrestricted variant)
* Multiplicity-parametric fields
* Syntax for annotating lambda-bound or let-bound with a multiplicity
* Syntax for non-linear/multiple-field-multiplicity records
* Linear projections for records with a single linear field
* Linear pattern synonyms
* Multiplicity coercions (test LinearPolyType)
A high-level description can be found at
https://ghc.haskell.org/trac/ghc/wiki/LinearTypes/Implementation
Following the link above you will find a description of the changes made to Core.
This commit has been authored by
* Richard Eisenberg
* Krzysztof Gogolewski
* Matthew Pickering
* Arnaud Spiwack
With contributions from:
* Mark Barbone
* Alexander Vershilov
Updates haddock submodule.
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This updates comments only.
This patch replaces leaf module names according to new module
hierarchy [1][2] as followings:
* Expand leaf names to easily find the module path:
for instance, `Id.hs` to `GHC.Types.Id`.
* Modify leaf names according to new module hierarchy:
for instance, `Convert.hs` to `GHC.ThToHs`.
* Fix typo:
for instance, `GHC.Core.TyCo.Rep.hs` to `GHC.Core.TyCo.Rep`
See also !3375
[1]: https://gitlab.haskell.org/ghc/ghc/-/wikis/Make-GHC-codebase-more-modular
[2]: https://gitlab.haskell.org/ghc/ghc/issues/13009
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Introduce GHC.Unit.* hierarchy for everything concerning units, packages
and modules.
Update Haddock submodule
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Update Haddock submodule
Metric Increase:
haddock.compiler
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* SysTools
* Parser
* GHC.Builtin
* GHC.Iface.Recomp
* Settings
Update Haddock submodule
Metric Decrease:
Naperian
parsing001
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Update Haddock submodule
Metric Increase:
haddock.compiler
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Use Platform instead of DynFlags when possible:
* `tARGET_MIN_INT` et al. replaced with `platformMinInt` et al.
* no more DynFlags in PreRules: added a new `RuleOpts` datatype
* don't use `wORD_SIZE` in the compiler
* make `wordAlignment` use `Platform`
* make `dOUBLE_SIZE` a constant
Metric Decrease:
T13035
T1969
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Metric Decrease:
ManyConstructors
T12707
T13035
T1969
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Update submodule: haddock
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* `interpreterDynamic` and `interpreterProfiled` now take `Interp`
parameters instead of DynFlags
* slight refactoring of `ExternalInterp` so that we can read the iserv
configuration (which is pure) without reading an MVar.
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* extract flags and ways into their own modules (with some renaming)
* remove one SOURCE import of GHC.Driver.Session from GHC.Driver.Phases
* when GHC uses dynamic linking (WayDyn), `interpWays` was only
reporting WayDyn even if the host was profiled (WayProf). Now it
returns both as expected (might fix #16803).
* `mkBuildTag :: [Way] -> String` wasn't reporting a canonical tag for
differently ordered lists. Now we sort and nub the list to fix this.
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In #14335 we want to be able to use both the internal interpreter (for
the plugins) and the external interpreter (for TH and GHCi) at the same
time.
This patch performs some preliminary refactoring: the `hsc_interp` field
of HscEnv replaces `hsc_iserv` and is now used to indicate which
interpreter (internal, external) to use to execute TH and GHCi.
Opt_ExternalInterpreter flag and iserv options in DynFlags are now
queried only when we set the session DynFlags. It should help making GHC
multi-target in the future by selecting an interpreter according to the
selected target.
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Update haddock submodule
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submodule updates: nofib, haddock
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(Commit message written by Omer, most of the code is written by Simon
and Richard)
See Note [Implementing unsafeCoerce] for how unsafe equality proofs and
the new unsafeCoerce# are implemented.
New notes added:
- [Checking for levity polymorphism] in CoreLint.hs
- [Implementing unsafeCoerce] in base/Unsafe/Coerce.hs
- [Patching magic definitions] in Desugar.hs
- [Wiring in unsafeCoerce#] in Desugar.hs
Only breaking change in this patch is unsafeCoerce# is not exported from
GHC.Exts, instead of GHC.Prim.
Fixes #17443
Fixes #16893
NoFib
-----
--------------------------------------------------------------------------------
Program Size Allocs Instrs Reads Writes
--------------------------------------------------------------------------------
CS -0.1% 0.0% -0.0% -0.0% -0.0%
CSD -0.1% 0.0% -0.0% -0.0% -0.0%
FS -0.1% 0.0% -0.0% -0.0% -0.0%
S -0.1% 0.0% -0.0% -0.0% -0.0%
VS -0.1% 0.0% -0.0% -0.0% -0.0%
VSD -0.1% 0.0% -0.0% -0.0% -0.1%
VSM -0.1% 0.0% -0.0% -0.0% -0.0%
anna -0.0% 0.0% -0.0% -0.0% -0.0%
ansi -0.1% 0.0% -0.0% -0.0% -0.0%
atom -0.1% 0.0% -0.0% -0.0% -0.0%
awards -0.1% 0.0% -0.0% -0.0% -0.0%
banner -0.1% 0.0% -0.0% -0.0% -0.0%
bernouilli -0.1% 0.0% -0.0% -0.0% -0.0%
binary-trees -0.1% 0.0% -0.0% -0.0% -0.0%
boyer -0.1% 0.0% -0.0% -0.0% -0.0%
boyer2 -0.1% 0.0% -0.0% -0.0% -0.0%
bspt -0.1% 0.0% -0.0% -0.0% -0.0%
cacheprof -0.1% 0.0% -0.0% -0.0% -0.0%
calendar -0.1% 0.0% -0.0% -0.0% -0.0%
cichelli -0.1% 0.0% -0.0% -0.0% -0.0%
circsim -0.1% 0.0% -0.0% -0.0% -0.0%
clausify -0.1% 0.0% -0.0% -0.0% -0.0%
comp_lab_zift -0.1% 0.0% -0.0% -0.0% -0.0%
compress -0.1% 0.0% -0.0% -0.0% -0.0%
compress2 -0.1% 0.0% -0.0% -0.0% -0.0%
constraints -0.1% 0.0% -0.0% -0.0% -0.0%
cryptarithm1 -0.1% 0.0% -0.0% -0.0% -0.0%
cryptarithm2 -0.1% 0.0% -0.0% -0.0% -0.0%
cse -0.1% 0.0% -0.0% -0.0% -0.0%
digits-of-e1 -0.1% 0.0% -0.0% -0.0% -0.0%
digits-of-e2 -0.1% 0.0% -0.0% -0.0% -0.0%
dom-lt -0.1% 0.0% -0.0% -0.0% -0.0%
eliza -0.1% 0.0% -0.0% -0.0% -0.0%
event -0.1% 0.0% -0.0% -0.0% -0.0%
exact-reals -0.1% 0.0% -0.0% -0.0% -0.0%
exp3_8 -0.1% 0.0% -0.0% -0.0% -0.0%
expert -0.1% 0.0% -0.0% -0.0% -0.0%
fannkuch-redux -0.1% 0.0% -0.0% -0.0% -0.0%
fasta -0.1% 0.0% -0.5% -0.3% -0.4%
fem -0.1% 0.0% -0.0% -0.0% -0.0%
fft -0.1% 0.0% -0.0% -0.0% -0.0%
fft2 -0.1% 0.0% -0.0% -0.0% -0.0%
fibheaps -0.1% 0.0% -0.0% -0.0% -0.0%
fish -0.1% 0.0% -0.0% -0.0% -0.0%
fluid -0.1% 0.0% -0.0% -0.0% -0.0%
fulsom -0.1% 0.0% +0.0% +0.0% +0.0%
gamteb -0.1% 0.0% -0.0% -0.0% -0.0%
gcd -0.1% 0.0% -0.0% -0.0% -0.0%
gen_regexps -0.1% 0.0% -0.0% -0.0% -0.0%
genfft -0.1% 0.0% -0.0% -0.0% -0.0%
gg -0.1% 0.0% -0.0% -0.0% -0.0%
grep -0.1% 0.0% -0.0% -0.0% -0.0%
hidden -0.1% 0.0% -0.0% -0.0% -0.0%
hpg -0.1% 0.0% -0.0% -0.0% -0.0%
ida -0.1% 0.0% -0.0% -0.0% -0.0%
infer -0.1% 0.0% -0.0% -0.0% -0.0%
integer -0.1% 0.0% -0.0% -0.0% -0.0%
integrate -0.1% 0.0% -0.0% -0.0% -0.0%
k-nucleotide -0.1% 0.0% -0.0% -0.0% -0.0%
kahan -0.1% 0.0% -0.0% -0.0% -0.0%
knights -0.1% 0.0% -0.0% -0.0% -0.0%
lambda -0.1% 0.0% -0.0% -0.0% -0.0%
last-piece -0.1% 0.0% -0.0% -0.0% -0.0%
lcss -0.1% 0.0% -0.0% -0.0% -0.0%
life -0.1% 0.0% -0.0% -0.0% -0.0%
lift -0.1% 0.0% -0.0% -0.0% -0.0%
linear -0.1% 0.0% -0.0% -0.0% -0.0%
listcompr -0.1% 0.0% -0.0% -0.0% -0.0%
listcopy -0.1% 0.0% -0.0% -0.0% -0.0%
maillist -0.1% 0.0% -0.0% -0.0% -0.0%
mandel -0.1% 0.0% -0.0% -0.0% -0.0%
mandel2 -0.1% 0.0% -0.0% -0.0% -0.0%
mate -0.1% 0.0% -0.0% -0.0% -0.0%
minimax -0.1% 0.0% -0.0% -0.0% -0.0%
mkhprog -0.1% 0.0% -0.0% -0.0% -0.0%
multiplier -0.1% 0.0% -0.0% -0.0% -0.0%
n-body -0.1% 0.0% -0.0% -0.0% -0.0%
nucleic2 -0.1% 0.0% -0.0% -0.0% -0.0%
para -0.1% 0.0% -0.0% -0.0% -0.0%
paraffins -0.1% 0.0% -0.0% -0.0% -0.0%
parser -0.1% 0.0% -0.0% -0.0% -0.0%
parstof -0.1% 0.0% -0.0% -0.0% -0.0%
pic -0.1% 0.0% -0.0% -0.0% -0.0%
pidigits -0.1% 0.0% -0.0% -0.0% -0.0%
power -0.1% 0.0% -0.0% -0.0% -0.0%
pretty -0.1% 0.0% -0.1% -0.1% -0.1%
primes -0.1% 0.0% -0.0% -0.0% -0.0%
primetest -0.1% 0.0% -0.0% -0.0% -0.0%
prolog -0.1% 0.0% -0.0% -0.0% -0.0%
puzzle -0.1% 0.0% -0.0% -0.0% -0.0%
queens -0.1% 0.0% -0.0% -0.0% -0.0%
reptile -0.1% 0.0% -0.0% -0.0% -0.0%
reverse-complem -0.1% 0.0% -0.0% -0.0% -0.0%
rewrite -0.1% 0.0% -0.0% -0.0% -0.0%
rfib -0.1% 0.0% -0.0% -0.0% -0.0%
rsa -0.1% 0.0% -0.0% -0.0% -0.0%
scc -0.1% 0.0% -0.1% -0.1% -0.1%
sched -0.1% 0.0% -0.0% -0.0% -0.0%
scs -0.1% 0.0% -0.0% -0.0% -0.0%
simple -0.1% 0.0% -0.0% -0.0% -0.0%
solid -0.1% 0.0% -0.0% -0.0% -0.0%
sorting -0.1% 0.0% -0.0% -0.0% -0.0%
spectral-norm -0.1% 0.0% -0.0% -0.0% -0.0%
sphere -0.1% 0.0% -0.0% -0.0% -0.0%
symalg -0.1% 0.0% -0.0% -0.0% -0.0%
tak -0.1% 0.0% -0.0% -0.0% -0.0%
transform -0.1% 0.0% -0.0% -0.0% -0.0%
treejoin -0.1% 0.0% -0.0% -0.0% -0.0%
typecheck -0.1% 0.0% -0.0% -0.0% -0.0%
veritas -0.0% 0.0% -0.0% -0.0% -0.0%
wang -0.1% 0.0% -0.0% -0.0% -0.0%
wave4main -0.1% 0.0% -0.0% -0.0% -0.0%
wheel-sieve1 -0.1% 0.0% -0.0% -0.0% -0.0%
wheel-sieve2 -0.1% 0.0% -0.0% -0.0% -0.0%
x2n1 -0.1% 0.0% -0.0% -0.0% -0.0%
--------------------------------------------------------------------------------
Min -0.1% 0.0% -0.5% -0.3% -0.4%
Max -0.0% 0.0% +0.0% +0.0% +0.0%
Geometric Mean -0.1% -0.0% -0.0% -0.0% -0.0%
Test changes
------------
- break006 is marked as broken, see #17833
- The compiler allocates less when building T14683 (an unsafeCoerce#-
heavy happy-generated code) on 64-platforms. Allocates more on 32-bit
platforms.
- Rest of the increases are tiny amounts (still enough to pass the
threshold) in micro-benchmarks. I briefly looked at each one in a
profiling build: most of the increased allocations seem to be because
of random changes in the generated code.
Metric Decrease:
T14683
Metric Increase:
T12150
T12234
T12425
T13035
T14683
T5837
T6048
Co-Authored-By: Richard Eisenberg <rae@cs.brynmawr.edu>
Co-Authored-By: Ömer Sinan Ağacan <omeragacan@gmail.com>
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Update haddock submodule
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