[Git][ghc/ghc][wip/gc/parallel-marking] 26 commits: Correct a typo in ghc.mk

Ben Gamari gitlab at gitlab.haskell.org
Mon Aug 17 17:11:34 UTC 2020 


Ben Gamari pushed to branch wip/gc/parallel-marking at Glasgow Haskell Compiler / GHC


Commits:
8ba41a0f by Felix Yan at 2020-08-10T20:23:29-04:00
Correct a typo in ghc.mk
- - - - -
1c469264 by Felix Yan at 2020-08-10T20:23:29-04:00
Add a closing parenthesis too

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acf537f9 by Sylvain Henry at 2020-08-10T20:24:09-04:00
Make splitAtList strict in its arguments

Also fix its slightly wrong comment

Metric Decrease:
    T5030
    T12227
    T12545

- - - - -
ab4d1589 by Ben Gamari at 2020-08-11T22:18:03-04:00
typecheck: Drop SPECIALISE pragmas when there is no unfolding

Previously the desugarer would instead fall over when it realized that
there was no unfolding for an imported function with a SPECIALISE
pragma. We now rather drop the SPECIALISE pragma and throw a warning.

Fixes #18118.

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0ac8c0a5 by Ben Gamari at 2020-08-11T22:18:03-04:00
testsuite: Add test for #18118

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c43078d7 by Sven Tennie at 2020-08-11T22:18:38-04:00
Add hie.yaml to ghc-heap

This enables IDE support by haskell-language-server for ghc-heap.

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f1088b3f by Ben Gamari at 2020-08-11T22:19:15-04:00
testsuite: Specify metrics collected by T17516

Previously it collected everything, including "max bytes used". This is
problematic since the test makes no attempt to control for deviations in
GC timing, resulting in high variability. Fix this by only collecting
"bytes allocated".

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accbc242 by Sylvain Henry at 2020-08-12T03:50:12-04:00
DynFlags: disentangle Outputable

- put panic related functions into GHC.Utils.Panic
- put trace related functions using DynFlags in GHC.Driver.Ppr

One step closer making Outputable fully independent of DynFlags.

Bump haddock submodule

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db6dd810 by Ben Gamari at 2020-08-12T03:50:48-04:00
testsuite: Increase tolerance of T16916

T16916 (testing #16916) has been slightly fragile in CI due to its
reliance on CPU times. While it's hard to see how to eliminate
the time-dependence entirely, we can nevertheless make it more tolerant.

Fixes #16966.

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bee43aca by Sylvain Henry at 2020-08-12T20:52:50-04:00
Rewrite and move the monad-state hack note

The note has been rewritten by @simonpj in !3851

[skip ci]

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25fdf25e by Alan Zimmerman at 2020-08-12T20:53:26-04:00
ApiAnnotations: Fix parser for new GHC 9.0 features

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7831fe05 by Ben Gamari at 2020-08-13T03:44:17-04:00
parser: Suggest ImportQualifiedPost in prepositive import warning

As suggested in #18545.

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55dec4dc by Sebastian Graf at 2020-08-13T03:44:52-04:00
PmCheck: Better long-distance info for where bindings (#18533)

Where bindings can see evidence from the pattern match of the `GRHSs`
they belong to, but not from anything in any of the guards (which belong
to one of possibly many RHSs).

Before this patch, we did *not* consider said evidence, causing #18533,
where the lack of considering type information from a case pattern match
leads to failure to resolve the vanilla COMPLETE set of a data type.

Making available that information required a medium amount of
refactoring so that `checkMatches` can return a
`[(Deltas, NonEmpty Deltas)]`; one `(Deltas, NonEmpty Deltas)` for each
`GRHSs` of the match group. The first component of the pair is the
covered set of the pattern, the second component is one covered set per
RHS.

Fixes #18533.
Regression test case: T18533

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cf97889a by Hécate at 2020-08-13T03:45:29-04:00
Re-add BangPatterns to CodePage.hs

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ffc0d578 by Sylvain Henry at 2020-08-13T09:49:56-04:00
Add HomeUnit type

Since Backpack the "home unit" is much more involved than what it was
before (just an identifier obtained with `-this-unit-id`). Now it is
used in conjunction with `-component-id` and `-instantiated-with` to
configure module instantiations and to detect if we are type-checking an
indefinite unit or compiling a definite one.

This patch introduces a new HomeUnit datatype which is much easier to
understand. Moreover to make GHC support several packages in the same
instances, we will need to handle several HomeUnits so having a
dedicated (documented) type is helpful.

Finally in #14335 we will also need to handle the case where we have no
HomeUnit at all because we are only loading existing interfaces for
plugins which live in a different space compared to units used to
produce target code. Several functions will have to be refactored to
accept "Maybe HomeUnit" parameters instead of implicitly querying the
HomeUnit fields in DynFlags. Having a dedicated type will make this
easier.

Bump haddock submodule

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8a51b2ab by Sylvain Henry at 2020-08-13T21:09:15-04:00
Make IOEnv monad one-shot (#18202)

On CI (x86_64-linux-deb9-hadrian, compile_time/bytes_allocated):

    T10421     -1.8%    (threshold: +/- 1%)
    T10421a    -1.7%    (threshold: +/- 1%)
    T12150     -4.9%    (threshold: +/- 2%)
    T12227     -1.6     (threshold: +/- 1%)
    T12425     -1.5%    (threshold: +/- 1%)
    T12545     -3.8%    (threshold: +/- 1%)
    T12707     -3.0%    (threshold: +/- 1%)
    T13035     -3.0%    (threshold: +/- 1%)
    T14683     -10.3%   (threshold: +/- 2%)
    T3064      -6.9%    (threshold: +/- 2%)
    T4801      -4.3%    (threshold: +/- 2%)
    T5030      -2.6%    (threshold: +/- 2%)
    T5321FD    -3.6%    (threshold: +/- 2%)
    T5321Fun   -4.6%    (threshold: +/- 2%)
    T5631      -19.7%   (threshold: +/- 2%)
    T5642      -13.0%   (threshold: +/- 2%)
    T783       -2.7     (threshold: +/- 2%)
    T9020      -11.1    (threshold: +/- 2%)
    T9961      -3.4%    (threshold: +/- 2%)

    T1969 (compile_time/bytes_allocated)  -2.2%  (threshold: +/-1%)
    T1969 (compile_time/max_bytes_used)   +24.4% (threshold: +/-20%)

Additionally on other CIs:

    haddock.Cabal                  -10.0%   (threshold: +/- 5%)
    haddock.compiler               -9.5%    (threshold: +/- 5%)
    haddock.base (max bytes used)  +24.6%   (threshold: +/- 15%)
    T10370 (max bytes used, i386)  +18.4%   (threshold: +/- 15%)

Metric Decrease:
    T10421
    T10421a
    T12150
    T12227
    T12425
    T12545
    T12707
    T13035
    T14683
    T3064
    T4801
    T5030
    T5321FD
    T5321Fun
    T5631
    T5642
    T783
    T9020
    T9961
    haddock.Cabal
    haddock.compiler
Metric Decrease 'compile_time/bytes allocated':
    T1969
Metric Increase 'compile_time/max_bytes_used':
    T1969
    T10370
    haddock.base

- - - - -
9f66fdf6 by Ben Gamari at 2020-08-14T15:50:34-04:00
testsuite: Drop --io-manager flag from testsuite configuration

This is no longer necessary as there are now dedicated testsuite ways
which run tests with WinIO.

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55fd1dc5 by Ben Gamari at 2020-08-14T15:51:10-04:00
llvm-targets: Add i686 targets

Addresses #18422.

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d5d92d82 by Ben Gamari at 2020-08-17T13:10:15-04:00
nonmoving: Clarify length of MarkQueueBlock and other comment issues

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1569b683 by Ben Gamari at 2020-08-17T13:10:15-04:00
nonmoving: Eliminate redundant information from MarkQueue

Previously we kept a pointer to both the bdescr of the MarkQueueBlock at
the head of the queue and the MarkQueueBlock itself. This is
unnecessary.

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5e1d5097 by Ben Gamari at 2020-08-17T13:10:15-04:00
nonmoving: Decouple UpdRemSet from MarkQueue

This is in preparation for parallel marking.

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c478b187 by Ben Gamari at 2020-08-17T13:10:16-04:00
More

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9754bf57 by Ben Gamari at 2020-08-17T13:10:43-04:00
Rename updateRemembSetPushClosureRegs

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b111c293 by Ben Gamari at 2020-08-17T13:11:21-04:00
MarkContext refactoring

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b43889af by Ben Gamari at 2020-08-17T13:11:25-04:00
Drop dead field

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aee6bfbf by Ben Gamari at 2020-08-17T13:11:25-04:00
nonmoving: Parallel marking?

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30 changed files:

- compiler/GHC.hs
- compiler/GHC/Builtin/Types.hs
- compiler/GHC/Builtin/Types/Prim.hs
- compiler/GHC/Builtin/Uniques.hs
- compiler/GHC/Builtin/Utils.hs
- compiler/GHC/ByteCode/Asm.hs
- compiler/GHC/Cmm/CLabel.hs
- compiler/GHC/Cmm/CallConv.hs
- compiler/GHC/Cmm/CommonBlockElim.hs
- compiler/GHC/Cmm/DebugBlock.hs
- compiler/GHC/Cmm/Expr.hs
- compiler/GHC/Cmm/Info/Build.hs
- compiler/GHC/Cmm/LayoutStack.hs
- compiler/GHC/Cmm/Liveness.hs
- compiler/GHC/Cmm/Opt.hs
- compiler/GHC/Cmm/Parser.y
- compiler/GHC/Cmm/Ppr/Decl.hs
- compiler/GHC/Cmm/Ppr/Expr.hs
- compiler/GHC/Cmm/ProcPoint.hs
- compiler/GHC/Cmm/Switch.hs
- compiler/GHC/Cmm/Type.hs
- compiler/GHC/Cmm/Utils.hs
- compiler/GHC/CmmToAsm.hs
- compiler/GHC/CmmToAsm/BlockLayout.hs
- compiler/GHC/CmmToAsm/CFG.hs
- compiler/GHC/CmmToAsm/CPrim.hs
- compiler/GHC/CmmToAsm/Dwarf.hs
- compiler/GHC/CmmToAsm/Format.hs
- compiler/GHC/CmmToAsm/Monad.hs
- compiler/GHC/CmmToAsm/PIC.hs


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/709288ea154816116f374e9760e300807e239537...aee6bfbfb270778cfa952faac86f38d3d832d8b1

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