[Git][ghc/ghc][wip/explicit-perf-baseline] 28 commits: A fix to an error message in monad comprehensions, and a move of dsHandleMonadicFailure

Ben Gamari gitlab at gitlab.haskell.org
Fri Aug 14 00:44:23 UTC 2020 


Ben Gamari pushed to branch wip/explicit-perf-baseline at Glasgow Haskell Compiler / GHC


Commits:
3907ee01 by Cale Gibbard at 2020-08-07T08:34:46-04:00
A fix to an error message in monad comprehensions, and a move of dsHandleMonadicFailure
as suggested by comments on !2330.

- - - - -
fa9bb70a by Cale Gibbard at 2020-08-07T08:34:46-04:00
Add some tests for fail messages in do-expressions and monad-comprehensions.

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5f036063 by Ben Gamari at 2020-08-07T08:35:21-04:00
cmm: Clean up Notes a bit

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6402c124 by Ben Gamari at 2020-08-07T08:35:21-04:00
CmmLint: Check foreign call argument register invariant

As mentioned in Note [Register parameter passing] the arguments of
foreign calls cannot refer to caller-saved registers.

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15b36de0 by Ben Gamari at 2020-08-07T08:35:21-04:00
nativeGen: One approach to fix #18527

Previously the code generator could produce corrupt C call sequences due
to register overlap between MachOp lowerings and the platform's calling
convention. We fix this using a hack described in Note [Evaluate C-call
arguments before placing in destination registers].

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3847ae0c by Ben Gamari at 2020-08-07T08:35:21-04:00
testsuite: Add test for #18527

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dd51d53b by Ben Gamari at 2020-08-07T08:35:21-04:00
testsuite: Fix prog001

Previously it failed as the `ghc` package was not visible.

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e4f1b73a by Alan Zimmerman at 2020-08-07T23:58:10-04:00
ApiAnnotations; tweaks for ghc-exactprint update

Remove unused ApiAnns, add one for linear arrow.

Include API Annotations for trailing comma in export list.

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8a665db6 by Ben Gamari at 2020-08-07T23:58:45-04:00
configure: Fix double-negation in ld merge-objects check

We want to only run the check if ld is gold.

Fixes the fix to #17962.
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a11c9678 by Adam Sandberg Ericsson at 2020-08-09T11:32:25+02:00
hadrian: depend on boot compiler version #18001

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c8873b52 by Alan Zimmerman at 2020-08-09T21:17:54-04:00
Api Annotations : Adjust SrcSpans for prefix bang (!).

And prefix ~

(cherry picked from commit 8dbee2c578b1f642d45561be3f416119863e01eb)

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77398b67 by Sylvain Henry at 2020-08-09T21:18:34-04:00
Avoid allocations in `splitAtList` (#18535)

As suspected by @simonpj in #18535, avoiding allocations in
`GHC.Utils.Misc.splitAtList` when there are no leftover arguments is
beneficial for performance:

   On CI validate-x86_64-linux-deb9-hadrian:
    T12227 -7%
    T12545 -12.3%
    T5030  -10%
    T9872a -2%
    T9872b -2.1%
    T9872c -2.5%

Metric Decrease:
    T12227
    T12545
    T5030
    T9872a
    T9872b
    T9872c

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8ba41a0f by Felix Yan at 2020-08-10T20:23:29-04:00
Correct a typo in ghc.mk
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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

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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".

- - - - -
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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b03e1a20 by Ben Gamari at 2020-08-13T20:44:21-04:00
testsuite: Allow baseline commit to be set explicitly

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33757f25 by Ben Gamari at 2020-08-13T20:44:21-04:00
gitlab-ci: Use MR base commit as performance baseline

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30 changed files:

- .gitlab-ci.yml
- .gitlab/ci.sh
- aclocal.m4
- 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/Lint.hs
- compiler/GHC/Cmm/Liveness.hs
- compiler/GHC/Cmm/MachOp.hs
- compiler/GHC/Cmm/Node.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/Sink.hs
- compiler/GHC/Cmm/Switch.hs
- compiler/GHC/Cmm/Type.hs
- compiler/GHC/Cmm/Utils.hs
- compiler/GHC/CmmToAsm.hs


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/4b91e5edf64363eff7d087731c2806464033447c...33757f25c7e5ae564b5c1ff643aad75c7960d65a

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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/4b91e5edf64363eff7d087731c2806464033447c...33757f25c7e5ae564b5c1ff643aad75c7960d65a
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