[Git][ghc/ghc][wip/int-index/visibility-subsumption] 36 commits: Separate core inlining logic from `Unfolding` type.

Vladislav Zavialov (@int-index) gitlab at gitlab.haskell.org
Fri Jan 20 20:08:29 UTC 2023



Vladislav Zavialov pushed to branch wip/int-index/visibility-subsumption at Glasgow Haskell Compiler / GHC


Commits:
7a9a1042 by Andreas Klebinger at 2023-01-16T20:48:19-05:00
Separate core inlining logic from `Unfolding` type.

This seems like a good idea either way, but is mostly motivated by a
patch where this avoids a module loop.

- - - - -
33b58f77 by sheaf at 2023-01-16T20:48:57-05:00
Hadrian: generalise &%> to avoid warnings

This patch introduces a more general version of &%> that works
with general traversable shapes, instead of lists. This allows us
to pass along the information that the length of the list of filepaths
passed to the function exactly matches the length of the input list
of filepath patterns, avoiding pattern match warnings.

Fixes #22430

- - - - -
8c7a991c by Andreas Klebinger at 2023-01-16T20:49:34-05:00
Add regression test for #22611.

A case were a function used to fail to specialize, but now does.

- - - - -
6abea760 by Andreas Klebinger at 2023-01-16T20:50:10-05:00
Mark maximumBy/minimumBy as INLINE.

The RHS was too large to inline which often prevented the overhead of the Maybe
from being optimized away. By marking it as INLINE we can eliminate the
overhead of both the maybe and are able to unpack the accumulator when
possible.

Fixes #22609

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99d151bb by Matthew Pickering at 2023-01-16T20:50:50-05:00
ci: Bump CACHE_REV so that ghc-9.6 branch and HEAD have different caches

Having the same CACHE_REV on both branches leads to issues where the
darwin toolchain is different on ghc-9.6 and HEAD which leads to long
darwin build times.

In general we should ensure that each branch has a different CACHE_REV.

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6a5845fb by Matthew Pickering at 2023-01-16T20:51:25-05:00
ci: Change owner of files in source-tarball job

This fixes errors of the form:

```
fatal: detected dubious ownership in repository at '/builds/ghc/ghc'
To add an exception for this directory, call:
	git config --global --add safe.directory /builds/ghc/ghc
inferred 9.7.20230113
checking for GHC Git commit id... fatal: detected dubious ownership in repository at '/builds/ghc/ghc'
To add an exception for this directory, call:
	git config --global --add safe.directory /builds/ghc/ghc
```

- - - - -
4afb952c by Matthew Pickering at 2023-01-16T20:51:25-05:00
ci: Don't build aarch64-deb10-llvm job on release pipelines

Closes #22721

- - - - -
8039feb9 by Matthew Pickering at 2023-01-16T20:51:25-05:00
ci: Change owner of files in test-bootstrap job

- - - - -
0b358d0c by Matthew Pickering at 2023-01-16T20:51:25-05:00
rel_eng: Add release engineering scripts into ghc tree

It is better to keep these scripts in the tree as they depend on the CI
configuration and so on. By keeping them in tree we can keep them
up-to-date as the CI config changes and also makes it easier to backport
changes to the release script between release branches in future.

The final motivation is that it makes generating GHCUp metadata
possible.

- - - - -
28cb2ed0 by Matthew Pickering at 2023-01-16T20:51:25-05:00
ci: Don't use complicated image or clone in not-interruptible job

This job exists only for the meta-reason of not allowing nightly
pipelines to be cancelled. It was taking two minutes to run as in order
to run "true" we would also clone the whole GHC repo.

- - - - -
eeea59bb by Matthew Pickering at 2023-01-16T20:51:26-05:00
Add scripts to generate ghcup metadata on nightly and release pipelines

1. A python script in .gitlab/rel_eng/mk-ghcup-metadata which generates
   suitable metadata for consumption by GHCUp for the relevant
   pipelines.

  - The script generates the metadata just as the ghcup maintainers
    want, without taking into account platform/library combinations. It
    is updated manually when the mapping changes.

  - The script downloads the bindists which ghcup wants to distribute,
    calculates the hash and generates the yaml in the correct structure.

  - The script is documented in the .gitlab/rel_eng/mk-ghcup-metadata/README.mk file

1a. The script requires us to understand the mapping from platform ->
    job. To choose the preferred bindist for each platform the
    .gitlab/gen_ci.hs script is modified to allow outputting a metadata
    file which answers the question about which job produces the
    bindist which we want to distribute to users for a specific
    platform.

2. Pipelines to run on nightly and release jobs to generate metadata

  - ghcup-metadata-nightly: Generates metadata which points directly to
    artifacts in the nightly job.

  - ghcup-metadata-release: Generates metadata suitable for inclusion
    directly in ghcup by pointing to the downloads folder where the
    bindist will be uploaded to.

2a. Trigger jobs which test the generated metadata in the downstream
    `ghccup-ci` repo. See that repo for documentation about what is
    tested and how but essentially we test in a variety of clean images
    that ghcup can download and install the bindists we say exist in our
    metadata.

- - - - -
97bd4d8c by Bodigrim at 2023-01-16T20:52:04-05:00
Bump submodule parsec to 3.1.16.1

- - - - -
97ac8230 by Alan Zimmerman at 2023-01-16T20:52:39-05:00
EPA: Add annotation for 'type' in DataDecl

Closes #22765

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dbbab95d by Ben Gamari at 2023-01-17T06:36:06-05:00
compiler: Small optimisation of assertM

In #22739 @AndreasK noticed that assertM performed the action to compute
the asserted predicate regardless of whether DEBUG is enabled. This is
inconsistent with the other assertion operations and general convention.
Fix this.

Closes #22739.

- - - - -
fc02f3bb by Viktor Dukhovni at 2023-01-17T06:36:47-05:00
Avoid unnecessary printf warnings in EventLog.c

Fixes #22778

- - - - -
003b6d44 by Simon Peyton Jones at 2023-01-17T16:33:05-05:00
Document the semantics of pattern bindings a bit better

This MR is in response to the discussion on #22719

- - - - -
f4d50baf by Vladislav Zavialov at 2023-01-17T16:33:41-05:00
Hadrian: fix warnings (#22783)

This change fixes the following warnings when building Hadrian:

	src/Hadrian/Expression.hs:38:10: warning: [-Wredundant-constraints]
	src/Hadrian/Expression.hs:84:13: warning: [-Wtype-equality-requires-operators]
	src/Hadrian/Expression.hs:84:21: warning: [-Wtype-equality-requires-operators]
	src/Hadrian/Haskell/Cabal/Parse.hs:67:1: warning: [-Wunused-imports]

- - - - -
06036d93 by Sylvain Henry at 2023-01-18T01:55:10-05:00
testsuite: req_smp --> req_target_smp, req_ghc_smp

See #22630 and !9552

This commit:
 - splits req_smp into req_target_smp and req_ghc_smp
 - changes the testsuite driver to calculate req_ghc_smp
 - changes a handful of tests to use req_target_smp instead of req_smp
 - changes a handful of tests to use req_host_smp when needed

The problem:
 - the problem this solves is the ambiguity surrounding req_smp
 - on master req_smp was used to express the constraint that the program
 being compiled supports smp _and_ that the host RTS (i.e., the RTS used
 to compile the program) supported smp. Normally that is fine, but in
 cross compilation this is not always the case as was discovered in #22630.

The solution:
 - Differentiate the two constraints:
   - use req_target_smp to say the RTS the compiled program is linked
   with (and the platform) supports smp
   - use req_host_smp to say the RTS the host is linked with supports smp

WIP: fix req_smp (target vs ghc)

add flag to separate bootstrapper

split req_smp -> req_target_smp and req_ghc_smp

update tests smp flags

cleanup and add some docstrings

only set ghc_with_smp to bootstrapper on S1 or CC

Only set ghc_with_smp to bootstrapperWithSMP of when testing stage 1
and cross compiling

test the RTS in config/ghc not hadrian

re-add ghc_with_smp

fix and align req names

fix T11760 to use req_host_smp

test the rts directly, avoid python 3.5 limitation

test the compiler in a try block

align out of tree and in tree withSMP flags

mark failing tests as host req smp

testsuite: req_host_smp --> req_ghc_smp

Fix ghc vs host, fix ghc_with_smp leftover

- - - - -
ee9b78aa by Krzysztof Gogolewski at 2023-01-18T01:55:45-05:00
Use -Wdefault when running Python testdriver (#22727)

- - - - -
e9c0537c by Vladislav Zavialov at 2023-01-18T01:56:22-05:00
Enable -Wstar-is-type by default (#22759)

Following the plan in GHC Proposal #143 "Remove the * kind syntax",
which states:

	In the next release (or 3 years in), enable -fwarn-star-is-type by default.

The "next release" happens to be 9.6.1

I also moved the T21583 test case from should_fail to should_compile,
because the only reason it was failing was -Werror=compat in our test
suite configuration.

- - - - -
4efee43d by Ryan Scott at 2023-01-18T01:56:59-05:00
Add missing parenthesizeHsType in cvtSigTypeKind

We need to ensure that the output of `cvtSigTypeKind` is parenthesized (at
precedence `sigPrec`) so that any type signatures with an outermost, explicit
kind signature can parse correctly.

Fixes #22784.

- - - - -
f891a442 by Ben Gamari at 2023-01-18T07:28:00-05:00
Bump ghc-tarballs to fix #22497

It turns out that gmp 6.2.1 uses the platform-reserved `x18` register on
AArch64/Darwin. This was fixed in upstream changeset 18164:5f32dbc41afc,
which was merged in 2020. Here I backport this patch although I do hope
that a new release is forthcoming soon.

Bumps gmp-tarballs submodule.

Fixes #22497.

- - - - -
b13c6ea5 by Ben Gamari at 2023-01-18T07:28:00-05:00
Bump gmp-tarballs submodule

This backports the upstream fix for CVE-2021-43618, fixing #22789.

- - - - -
c45a5fff by Cheng Shao at 2023-01-18T07:28:37-05:00
Fix typo in recent darwin tests fix

Corrects a typo in !9647. Otherwise T18623 will still fail on darwin
and stall other people's work.

- - - - -
b4c14c4b by Luite Stegeman at 2023-01-18T14:21:42-05:00
Add PrimCallConv support to GHCi

This adds support for calling Cmm code from bytecode using the native
calling convention, allowing modules that use `foreign import prim`
to be loaded and debugged in GHCi.

This patch introduces a new `PRIMCALL` bytecode instruction and
a helper stack frame `stg_primcall`. The code is based on the
existing functionality for dealing with unboxed tuples in bytecode,
which has been generalised to handle arbitrary calls.

Fixes #22051

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d0a63ef8 by Adam Gundry at 2023-01-18T14:22:26-05:00
Refactor warning flag parsing to add missing flags

This adds `-Werror=<group>` and `-fwarn-<group>` flags for warning
groups as well as individual warnings. Previously these were defined
on an ad hoc basis so for example we had `-Werror=compat` but not
`-Werror=unused-binds`, whereas we had `-fwarn-unused-binds` but not
`-fwarn-compat`. Fixes #22182.

- - - - -
7ed1b8ef by Adam Gundry at 2023-01-18T14:22:26-05:00
Minor corrections to comments

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5389681e by Adam Gundry at 2023-01-18T14:22:26-05:00
Revise warnings documentation in user's guide

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ab0d5cda by Adam Gundry at 2023-01-18T14:22:26-05:00
Move documentation of deferred type error flags out of warnings section

- - - - -
eb5a6b91 by John Ericson at 2023-01-18T22:24:10-05:00
Give the RTS it's own configure script

Currently it doesn't do much anything, we are just trying to introduce
it without breaking the build. Later, we will move functionality from
the top-level configure script over to it.

We need to bump Cabal for https://github.com/haskell/cabal/pull/8649; to
facilitate and existing hack of skipping some configure checks for the
RTS we now need to skip just *part* not *all* of the "post configure"
hook, as running the configure script (which we definitely want to do)
is also implemented as part of the "post configure" hook. But doing this
requires exposing functionality that wasn't exposed before.

- - - - -
32ab07bf by Bodigrim at 2023-01-18T22:24:51-05:00
ghc package does not have to depend on terminfo

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981ff7c4 by Bodigrim at 2023-01-18T22:24:51-05:00
ghc-pkg does not have to depend on terminfo

- - - - -
f058e367 by Ben Gamari at 2023-01-18T22:25:27-05:00
nativeGen/X86: MFENCE is unnecessary for release semantics

In #22764 a user noticed that a program implementing a simple atomic
counter via an STRef regressed significantly due to the introduction of
necessary atomic operations in the MutVar# primops (#22468). This
regression was caused by a bug in the NCG, which emitted an unnecessary
MFENCE instruction for a release-ordered atomic write. MFENCE is rather
only needed to achieve sequentially consistent ordering.

Fixes #22764.

- - - - -
154889db by Ryan Scott at 2023-01-18T22:26:03-05:00
Add regression test for #22151

Issue #22151 was coincidentally fixed in commit
aed1974e92366ab8e117734f308505684f70cddf (`Refactor the treatment of loopy
superclass dicts`). This adds a regression test to ensure that the issue
remains fixed.

Fixes #22151.

- - - - -
14b5982a by Andrei Borzenkov at 2023-01-18T22:26:43-05:00
Fix printing of promoted MkSolo datacon (#22785)

Problem: In 2463df2f, the Solo data constructor was renamed to MkSolo,
and Solo was turned into a pattern synonym for backwards compatibility.
Since pattern synonyms can not be promoted, the old code that pretty-printed
promoted single-element tuples started producing ill-typed code:
   t :: Proxy ('Solo Int)
This fails with "Pattern synonym ‘Solo’ used as a type"

The solution is to track the distinction between type constructors and data
constructors more carefully when printing single-element tuples.

- - - - -
261a9f38 by Vladislav Zavialov at 2023-01-20T23:08:20+03:00
WIP: Visibility subsumption

- - - - -


30 changed files:

- .gitlab-ci.yml
- .gitlab/gen_ci.hs
- + .gitlab/generate_job_metadata
- .gitlab/generate_jobs
- .gitlab/jobs.yaml
- + .gitlab/rel_eng/default.nix
- + .gitlab/rel_eng/fetch-gitlab-artifacts/.gitignore
- + .gitlab/rel_eng/fetch-gitlab-artifacts/README.mkd
- + .gitlab/rel_eng/fetch-gitlab-artifacts/default.nix
- + .gitlab/rel_eng/fetch-gitlab-artifacts/fetch_gitlab.py
- + .gitlab/rel_eng/fetch-gitlab-artifacts/setup.py
- + .gitlab/rel_eng/mk-ghcup-metadata/.gitignore
- + .gitlab/rel_eng/mk-ghcup-metadata/README.mkd
- + .gitlab/rel_eng/mk-ghcup-metadata/default.nix
- + .gitlab/rel_eng/mk-ghcup-metadata/mk_ghcup_metadata.py
- + .gitlab/rel_eng/mk-ghcup-metadata/setup.py
- + .gitlab/rel_eng/nix/sources.json
- + .gitlab/rel_eng/nix/sources.nix
- + .gitlab/rel_eng/upload.sh
- .gitlab/upload_ghc_libs.py → .gitlab/rel_eng/upload_ghc_libs.py
- boot
- cabal.project-reinstall
- compiler/GHC/Builtin/Types.hs-boot
- compiler/GHC/ByteCode/Asm.hs
- compiler/GHC/ByteCode/Instr.hs
- compiler/GHC/ByteCode/Types.hs
- compiler/GHC/Cmm/CallConv.hs
- compiler/GHC/Cmm/Parser.y
- compiler/GHC/Cmm/Reg.hs
- compiler/GHC/CmmToAsm/X86/CodeGen.hs


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/ab211549630b73e4f6721cb2d960b8e1fa95998a...261a9f38cdfdf7b2a513f34ca1fc2c13032d52eb

-- 
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/ab211549630b73e4f6721cb2d960b8e1fa95998a...261a9f38cdfdf7b2a513f34ca1fc2c13032d52eb
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