[Git][ghc/ghc][wip/az/exactprint] 55 commits: Change the fail operator argument of BindStmt to be a Maybe

Alan Zimmerman gitlab at gitlab.haskell.org
Wed Apr 29 20:14:02 UTC 2020



Alan Zimmerman pushed to branch wip/az/exactprint at Glasgow Haskell Compiler / GHC


Commits:
a05348eb by Cale Gibbard at 2020-04-17T13:08:47-04:00
Change the fail operator argument of BindStmt to be a Maybe

Don't use noSyntaxExpr for it. There is no good way to defensively case
on that, nor is it clear one ought to do so.

- - - - -
79e27144 by John Ericson at 2020-04-17T13:08:47-04:00
Use trees that grow for rebindable operators for `<-` binds

Also add more documentation.

- - - - -
18bc16ed by Cale Gibbard at 2020-04-17T13:08:47-04:00
Use FailOperator in more places, define a couple datatypes (XBindStmtRn and XBindStmtTc) to help clarify the meaning of XBindStmt in the renamer and typechecker

- - - - -
84cc8394 by Simon Peyton Jones at 2020-04-18T13:20:29-04:00
Add a missing zonk in tcHsPartialType

I omitted a vital zonk when refactoring tcHsPartialType in
   commit 48fb3482f8cbc8a4b37161021e846105f980eed4
   Author: Simon Peyton Jones <simonpj at microsoft.com>
   Date:   Wed Jun 5 08:55:17 2019 +0100

   Fix typechecking of partial type signatures

This patch fixes it and adds commentary to explain why.

Fixes #18008

- - - - -
2ee96ac1 by Ben Gamari at 2020-04-18T13:21:05-04:00
gitlab-ci: Bump FreeBSD bootstrap compiler to 8.10.1

- - - - -
434312e5 by Ben Gamari at 2020-04-18T13:21:05-04:00
gitlab-ci: Enable FreeBSD job for so-labelled MRs

- - - - -
ddffb227 by Ben Gamari at 2020-04-18T13:21:05-04:00
gitlab-ci: Use rules syntax for conditional jobs

- - - - -
e2586828 by Ben Gamari at 2020-04-18T13:21:05-04:00
Bump hsc2hs submodule

- - - - -
15ab6cd5 by Ömer Sinan Ağacan at 2020-04-18T13:21:44-04:00
Improve prepForeignCall error reporting

Show parameters and description of the error code when ffi_prep_cif
fails.

This may be helpful for debugging #17018.

- - - - -
3ca52151 by Sylvain Henry at 2020-04-18T20:04:14+02:00
GHC.Core.Opt renaming

* GHC.Core.Op                  => GHC.Core.Opt
* GHC.Core.Opt.Simplify.Driver => GHC.Core.Opt.Driver
* GHC.Core.Opt.Tidy            => GHC.Core.Tidy
* GHC.Core.Opt.WorkWrap.Lib    => GHC.Core.Opt.WorkWrap.Utils

As discussed in:
 * https://mail.haskell.org/pipermail/ghc-devs/2020-April/018758.html
 * https://gitlab.haskell.org/ghc/ghc/issues/13009#note_264650

- - - - -
15312bbb by Sylvain Henry at 2020-04-18T20:04:46+02:00
Modules (#13009)

* SysTools
* Parser
* GHC.Builtin
* GHC.Iface.Recomp
* Settings

Update Haddock submodule

Metric Decrease:
    Naperian
    parsing001

- - - - -
eaed0a32 by Alexis King at 2020-04-19T03:16:44-04:00
Add missing addInScope call for letrec binders in OccurAnal

This fixes #18044, where a shadowed variable was incorrectly substituted
by the binder swap on the RHS of a floated-in letrec. This can only
happen when the uniques line up *just* right, so writing a regression
test would be very difficult, but at least the fix is small and
straightforward.

- - - - -
36882493 by Shayne Fletcher at 2020-04-20T04:36:43-04:00
Derive Ord instance for Extension

Metric Increase:
   T12150
   T12234

- - - - -
b43365ad by Simon Peyton Jones at 2020-04-20T04:37:20-04:00
Fix a buglet in redundant-constraint warnings

Ticket #18036 pointed out that we were reporting a redundant
constraint when it really really wasn't.

Turned out to be a buglet in the SkolemInfo for the
relevant implication constraint.  Easily fixed!

- - - - -
d5fae7da by Ömer Sinan Ağacan at 2020-04-20T14:39:28-04:00
Mark T12010 fragile on 32-bit

- - - - -
bca02fca by Adam Sandberg Ericsson at 2020-04-21T06:38:45-04:00
docs: drop note about not supporting shared libraries on unix systems

[skip ci]

- - - - -
6655f933 by Sylvain Henry at 2020-04-21T06:39:32-04:00
Use ParserFlags in GHC.Runtime.Eval (#17957)

Instead of passing `DynFlags` to functions such as `isStmt` and
`hasImport` in `GHC.Runtime.Eval` we pass `ParserFlags`. It's a much
simpler structure that can be created purely with `mkParserFlags'`.

- - - - -
70be0fbc by Sylvain Henry at 2020-04-21T06:39:32-04:00
GHC.Runtime: avoid DynFlags (#17957)

* add `getPlatform :: TcM Platform` helper
* remove unused `DynFlags` parameter from `emptyPLS`

- - - - -
35e43d48 by Sylvain Henry at 2020-04-21T06:39:32-04:00
Avoid DynFlags in Ppr code (#17957)

* replace `DynFlags` parameters with `SDocContext` parameters for a few
  Ppr related functions: `bufLeftRenderSDoc`, `printSDoc`,
  `printSDocLn`, `showSDocOneLine`.

* remove the use of `pprCols :: DynFlags -> Int` in Outputable. We
  already have the information via `sdocLineLength :: SDocContext ->
  Int`

- - - - -
ce5c2999 by Sylvain Henry at 2020-04-21T06:39:32-04:00
Avoid using sdocWithDynFlags (#17957)

Remove one use of `sdocWithDynFlags` from `GHC.CmmToLlvm.llvmCodeGen'`
and from `GHC.Driver.CodeOutput.profilingInitCode`

- - - - -
f2a98996 by Sylvain Henry at 2020-04-21T06:39:32-04:00
Avoid `sdocWithDynFlags` in `pprCLbl` (#17957)

* add a `DynFlags` parameter to `pprCLbl`
* put `maybe_underscore` and `pprAsmCLbl` in a `where` clause to avoid
  `DynFlags` parameters

- - - - -
747093b7 by Sylvain Henry at 2020-04-21T06:39:32-04:00
CmmToAsm DynFlags refactoring (#17957)

* Remove `DynFlags` parameter from `isDynLinkName`: `isDynLinkName` used
  to test the global `ExternalDynamicRefs` flag. Now we test it outside of
  `isDynLinkName`

* Add new fields into `NCGConfig`: current unit id, sse/bmi versions,
  externalDynamicRefs, etc.

* Replace many uses of `DynFlags` by `NCGConfig`

* Moved `BMI/SSE` datatypes into `GHC.Platform`

- - - - -
ffd7eef2 by Takenobu Tani at 2020-04-22T23:09:50-04:00
stg-spec: Modify file paths according to new module hierarchy

This patch updates file paths according to new module hierarchy [1]:

  * GHC/Stg/Syntax.hs       <= stgSyn/StgSyn.hs
  * GHC/Types/Literal.hs    <= basicTypes/Literal.hs
  * GHC/Types/CostCentre.hs <= profiling/CostCentre.hs

This patch also updates old file path [2]:

  * utils/genapply/Main.hs  <= utils/genapply/GenApply.hs

[1]: https://gitlab.haskell.org/ghc/ghc/-/wikis/Make-GHC-codebase-more-modular
[2]: commit 0cc4aad36f

[skip ci]

- - - - -
e8a5d81b by Jonathan DK Gibbons at 2020-04-22T23:10:28-04:00
Refactor the `MatchResult` type in the desugarer

This way, it does a better job of proving whether or not the fail operator is used.

- - - - -
dcb7fe5a by John Ericson at 2020-04-22T23:10:28-04:00
Remove panic in dsHandleMonadicFailure

Rework dsHandleMonadicFailure to be correct by construction instead of
using an unreachable panic.

- - - - -
cde23cd4 by John Ericson at 2020-04-22T23:10:28-04:00
Inline `adjustMatchResult`

It is just `fmap`

- - - - -
72cb6bcc by John Ericson at 2020-04-22T23:10:28-04:00
Generalize type of `matchCanFail`

- - - - -
401f7bb3 by John Ericson at 2020-04-22T23:10:28-04:00
`MatchResult'` -> `MatchResult`

Inline `MatchResult` alias accordingly.

- - - - -
6c9fae23 by Alexis King at 2020-04-22T23:11:12-04:00
Mark DataCon wrappers CONLIKE

Now that DataCon wrappers don’t inline until phase 0 (see commit
b78cc64e923716ac0512c299f42d4d0012306c05), it’s important that
case-of-known-constructor and RULE matching be able to see saturated
applications of DataCon wrappers in unfoldings. Making them conlike is a
natural way to do it, since they are, in fact, precisely the sort of
thing the CONLIKE pragma exists to solve.

Fixes #18012.

This also bumps the version of the parsec submodule to incorporate a
patch that avoids a metric increase on the haddock perf tests. The
increase was not really a flaw in this patch, as parsec was implicitly
relying on inlining heuristics. The patch to parsec just adds some
INLINABLE pragmas, and we get a nice performance bump out of it (well
beyond the performance we lost from this patch).

Metric Decrease:
    T12234
    WWRec
    haddock.Cabal
    haddock.base
    haddock.compiler

- - - - -
48b8951e by Roland Senn at 2020-04-22T23:11:51-04:00
Fix tab-completion for :break (#17989)

In tab-completion for the `:break` command, only those
identifiers should be shown, that are accepted in the
`:break` command. Hence these identifiers must be

- defined in an interpreted module
- top-level
- currently in scope
- listed in a `ModBreaks` value as a possible breakpoint.

The identifiers my be qualified or unqualified.

To get all possible top-level breakpoints for tab-completeion
with the correct qualification do:

1. Build the  list called `pifsBreaks` of all pairs of
(Identifier, module-filename) from the `ModBreaks` values.
Here all identifiers are unqualified.

2. Build the list called `pifInscope` of all pairs of
(Identifiers, module-filename) with identifiers from
the `GlobalRdrEnv`. Take only those identifiers that are
in scope and have the  correct prefix.
Here the identifiers may be qualified.

3. From the `pifInscope` list seclect all pairs that can be
found in the `pifsBreaks` list, by comparing only the
unqualified part of the identifier.
The remaining identifiers can be used for tab-completion.

This ensures, that we show only identifiers, that can be used
in a `:break` command.

- - - - -
34a45ee6 by Peter Trommler at 2020-04-22T23:12:27-04:00
PPC NCG: Add DWARF constants and debug labels

Fixes #11261

- - - - -
ffde2348 by Simon Peyton Jones at 2020-04-22T23:13:06-04:00
Do eager instantation in terms

This patch implements eager instantiation, a small but critical change
to the type inference engine, #17173.  The main change is this:

  When inferring types, always return an instantiated type
  (for now, deeply instantiated; in future shallowly instantiated)

There is more discussion in
https://www.tweag.io/posts/2020-04-02-lazy-eager-instantiation.html

There is quite a bit of refactoring in this patch:

* The ir_inst field of GHC.Tc.Utils.TcType.InferResultk
  has entirely gone.  So tcInferInst and tcInferNoInst have collapsed
  into tcInfer.

* Type inference of applications, via tcInferApp and
  tcInferAppHead, are substantially refactored, preparing
  the way for Quick Look impredicativity.

* New pure function GHC.Tc.Gen.Expr.collectHsArgs and applyHsArgs
  are beatifully dual.  We can see the zipper!

* GHC.Tc.Gen.Expr.tcArgs is now much nicer; no longer needs to return
  a wrapper

* In HsExpr, HsTypeApp now contains the the actual type argument,
  and is used in desugaring, rather than putting it in a mysterious
  wrapper.

* I struggled a bit with good error reporting in
  Unify.matchActualFunTysPart. It's a little bit simpler than before,
  but still not great.

Some smaller things

* Rename tcPolyExpr --> tcCheckExpr
         tcMonoExpr --> tcLExpr
* tcPatSig moves from GHC.Tc.Gen.HsType to GHC.Tc.Gen.Pat

Metric Decrease:
    T9961

Reduction of 1.6% in comiler allocation on T9961, I think.

- - - - -
6f84aca3 by Ben Gamari at 2020-04-22T23:13:43-04:00
rts: Ensure that sigaction structs are initialized

I noticed these may have uninitialized fields when looking into #18037.
The reporter says that zeroing them doesn't fix the MSAN failures they
observe but zeroing them is the right thing to do regardless.

- - - - -
c29f0fa6 by Andreas Klebinger at 2020-04-22T23:14:21-04:00
Add "ddump-cmm-opt" as alias for "ddump-opt-cmm".

- - - - -
4b4a8b60 by Ben Gamari at 2020-04-22T23:14:57-04:00
llvmGen: Remove -fast-llvm flag

Issue #18076 drew my attention to the undocumented `-fast-llvm` flag for
the LLVM code generator introduced in
22733532171330136d87533d523f565f2a4f102f. Speaking to Moritz about this,
the motivation for this flag was to avoid potential incompatibilities
between LLVM and the assembler/linker toolchain by making LLVM
responsible for machine-code generation.

Unfortunately, this cannot possibly work: the LLVM backend's mangler
performs a number of transforms on the assembler generated by LLVM that
are necessary for correctness. These are currently:

 * mangling Haskell functions' symbol types to be `object` instead of
   `function` on ELF platforms (necessary for tables-next-to-code)
 * mangling AVX instructions to ensure that we don't assume alignment
   (which LLVM otherwise does)
 * mangling Darwin's  subsections-via-symbols directives

Given that these are all necessary I don't believe that we can support
`-fast-llvm`. Let's rather remove it.

- - - - -
831b6642 by Moritz Angermann at 2020-04-22T23:15:33-04:00
Fix build warning; add more informative information to the linker; fix linker for empty sections

- - - - -
c409961a by Ryan Scott at 2020-04-22T23:16:12-04:00
Update commentary and slightly refactor GHC.Tc.Deriv.Infer

There was some out-of-date commentary in `GHC.Tc.Deriv.Infer` that
has been modernized. Along the way, I removed the `bad` constraints
in `simplifyDeriv`, which did not serve any useful purpose (besides
being printed in debugging output).

Fixes #18073.

- - - - -
125aa2b8 by Ömer Sinan Ağacan at 2020-04-22T23:16:51-04:00
Remove leftover comment in tcRnModule', redundant bind

The code for the comment was moved in dc8c03b2a5c but the comment was
forgotten.

- - - - -
8ea37b01 by Sylvain Henry at 2020-04-22T23:17:34-04:00
RTS: workaround a Linux kernel bug in timerfd

Reading a timerfd may return 0: https://lkml.org/lkml/2019/8/16/335.

This is currently undocumented behavior and documentation "won't happen
anytime soon" (https://lkml.org/lkml/2020/2/13/295).

With this patch, we just ignore the result instead of crashing. It may
fix #18033 but we can't be sure because we don't have enough
information.

See also this discussion about the kernel bug:
https://github.com/Azure/sonic-swss-common/pull/302/files/1f070e7920c2e5d63316c0105bf4481e73d72dc9

- - - - -
cd8409c2 by Ryan Scott at 2020-04-23T11:39:24-04:00
Create di_scoped_tvs for associated data family instances properly

See `Note [Associated data family instances and di_scoped_tvs]` in
`GHC.Tc.TyCl.Instance`, which explains all of the moving parts.

Fixes #18055.

- - - - -
339e8ece by Ben Gamari at 2020-04-23T11:40:02-04:00
hadrian/ghci: Allow arguments to be passed to GHCi

Previously the arguments passed to hadrian/ghci were passed both to
`hadrian` and GHCi. This is rather odd given that there are essentially
not arguments in the intersection of the two. Let's just pass them to
GHCi; this allows `hadrian/ghci -Werror`.

- - - - -
5946c85a by Ben Gamari at 2020-04-23T11:40:38-04:00
testsuite: Don't attempt to read .std{err,out} files if they don't exist

Simon reports that he was previously seeing framework failures due to
an attempt to read the non-existing T13456.stderr. While I don't know
exactly what this is due to, it does seem like a non-existing
.std{out,err} file should be equivalent to an empty file. Teach the
testsuite driver to treat it as such.

- - - - -
c42754d5 by John Ericson at 2020-04-23T18:32:43-04:00
Trees That Grow refactor for `ConPat` and `CoPat`

- `ConPat{In,Out}` -> `ConPat`

- `CoPat` -> `XPat (CoPat ..)`

Note that `GHC.HS.*` still uses `HsWrap`, but only when `p ~ GhcTc`.
After this change, moving the type family instances out of `GHC.HS.*` is
sufficient to break the cycle.

Add XCollectPat class to decide how binders are collected from XXPat based on the pass.

Previously we did this with IsPass, but that doesn't work for Haddock's
DocNameI, and the constraint doesn't express what actual distinction is being
made. Perhaps a class for collecting binders more generally is in order, but we
haven't attempted this yet.

Pure refactor of code around ConPat

 - InPat/OutPat synonyms removed

 - rename several identifiers

 - redundant constraints removed

 - move extension field in ConPat to be first

 - make ConPat use record syntax more consistently

Fix T6145 (ConPatIn became ConPat)

Add comments from SPJ.

Add comment about haddock's use of CollectPass.

Updates haddock submodule.

- - - - -
72da0c29 by mniip at 2020-04-23T18:33:21-04:00
Add :doc to GHC.Prim

- - - - -
2c23e2e3 by mniip at 2020-04-23T18:33:21-04:00
Include docs for non-primop entries in primops.txt as well

- - - - -
0ac29c88 by mniip at 2020-04-23T18:33:21-04:00
GHC.Prim docs: note and test

- - - - -
b0fbfc75 by John Ericson at 2020-04-24T12:07:14-04:00
Switch order on `GhcMake.IsBoot`

In !1798 we were requested to replace many `Bool`s with this data type.
But those bools had `False` meaning `NotBoot`, so the `Ord` instance
would be flipped if we use this data-type as-is.

Since the planned formally-`Bool` occurrences vastly outnumber the
current occurrences, we figured it would be better to conform the `Ord`
instance to how the `Bool` is used now, fixing any issues, rather than
fix them currently with the bigger refactor later in !1798. That way,
!1798 can be a "pure" refactor with no behavioral changes.

- - - - -
af332442 by Sylvain Henry at 2020-04-26T13:55:14-04:00
Modules: Utils and Data (#13009)

Update Haddock submodule

Metric Increase:
   haddock.compiler

- - - - -
cd4434c8 by Sylvain Henry at 2020-04-26T13:55:16-04:00
Fix misleading Ptr phantom type in SerializedCompact (#15653)

- - - - -
22bf5c73 by Ömer Sinan Ağacan at 2020-04-26T13:55:22-04:00
Tweak includes in non-moving GC headers

We don't use hash tables in non-moving GC so remove the includes.

This breaks Compact.c as existing includes no longer include Hash.h, so
include Hash.h explicitly in Compact.c.

- - - - -
99823ed2 by Sylvain Henry at 2020-04-27T20:24:46-04:00
TH: fix Show/Eq/Ord instances for Bytes (#16457)

We shouldn't compare pointer values but the actual bytes.

- - - - -
c62271a2 by Alp Mestanogullari at 2020-04-27T20:25:33-04:00
hadrian: always capture both stdout and stderr when running a builder fails

The idea being that when a builder('s command) fails, we quite likely want to
have all the information available to figure out why. Depending on the builder
_and_ the particular problem, the useful bits of information can be printed
on stdout or stderr.

We accomplish this by defining a simple wrapper for Shake's `cmd` function,
that just _always_ captures both streams in case the command returns a non-zero
exit code, and by using this wrapper everywhere in `hadrian/src/Builder.hs`.

Fixes #18089.

- - - - -
4b9764db by Ryan Scott at 2020-04-28T15:40:04-04:00
Define a Quote IO instance

Fixes #18103.

- - - - -
518a63d4 by Ryan Scott at 2020-04-28T15:40:42-04:00
Make boxed 1-tuples have known keys

Unlike other tuples, which use special syntax and are "known" by way
of a special `isBuiltInOcc_maybe` code path, boxed 1-tuples do not
use special syntax. Therefore, in order to make sure that the
internals of GHC are aware of the `data Unit a = Unit a` definition
in `GHC.Tuple`, we give `Unit` known keys. For the full details, see
`Note [One-tuples] (Wrinkle: Make boxed one-tuple names have known keys)`
in `GHC.Builtin.Types`.

Fixes #18097.

- - - - -
b15868a8 by Alan Zimmerman at 2020-04-29T21:13:18+01:00
Proof of Concept implementation of in-tree API Annotations

This MR introduces a possible machinery to introduce API Annotations
into the TTG extension points.

It is intended to be a concrete example for discussion.

It still needs to process comments.

----

Work in progress, adding more TTG extensions for annotations.

And fixing ppr round-trip tests by being able to blank out in-tree
annotations, as done with SrcSpans.

This is needed for the case of

  class Foo a where

for which current ppr does not print the "where".

Rename AA to AddApiAnn and AA to AddAnn

Add XConPatIn and XConPatOut

Rebase

----

First pass at bringing in LocatedA for API anns in locations

Treatment of ECP in parsing is provisional at this stage, leads to some
horribly stuff in Parser.y and RdrHsSyn.

It is an extensive but not invasive change. I think (AZ).

Locally it reports some parsing tests using less memory.

Add ApiAnns to the HsExpr data structure.

rebase.

Change HsMatchContext and HsStmtContext to use an id, not a GhcPass
parameter.

Add ApiAnns to Hs/Types

Rebase

Rebased 2020-03-25

WIP on in-tree annotations

Includes updating HsModule

Imports

LocateA ImportDecl so we can hang AnnSemi off it

A whole bunch of stuff more

InjectivityAnn and FamEqn now have annotations in them

Add annotations to context srcspan

----

In-tree annotations: LHsDecl and LHsBind LocatedA

----

WIP on in-tree annotations

----

in-tree annotations: LHsType is now LocatedA

----

FunDeps is now also a HS data type

----

WIP.  Added LocatedA to Pat, Expr, Decl

And worked some more through Parser.y

----

LStmt now Located

----

Finished working through Parser.y, tests seem ok

failures relate to annotations.

- - - - -


30 changed files:

- .gitlab-ci.yml
- .gitlab/ci.sh
- compiler/GHC.hs
- compiler/prelude/PrelNames.hs → compiler/GHC/Builtin/Names.hs
- compiler/prelude/PrelNames.hs-boot → compiler/GHC/Builtin/Names.hs-boot
- compiler/prelude/THNames.hs → compiler/GHC/Builtin/Names/TH.hs
- compiler/prelude/PrimOp.hs → compiler/GHC/Builtin/PrimOps.hs
- + compiler/GHC/Builtin/PrimOps.hs-boot
- compiler/prelude/TysWiredIn.hs → compiler/GHC/Builtin/Types.hs
- compiler/prelude/TysWiredIn.hs-boot → compiler/GHC/Builtin/Types.hs-boot
- compiler/typecheck/TcTypeNats.hs → compiler/GHC/Builtin/Types/Literals.hs
- compiler/prelude/TysPrim.hs → compiler/GHC/Builtin/Types/Prim.hs
- compiler/prelude/KnownUniques.hs → compiler/GHC/Builtin/Uniques.hs
- compiler/prelude/KnownUniques.hs-boot → compiler/GHC/Builtin/Uniques.hs-boot
- compiler/prelude/PrelInfo.hs → compiler/GHC/Builtin/Utils.hs
- compiler/prelude/primops.txt.pp → compiler/GHC/Builtin/primops.txt.pp
- compiler/GHC/ByteCode/Asm.hs
- compiler/GHC/ByteCode/InfoTable.hs
- compiler/GHC/ByteCode/Instr.hs
- compiler/GHC/ByteCode/Linker.hs
- compiler/GHC/ByteCode/Types.hs
- compiler/GHC/Cmm.hs
- compiler/GHC/Cmm/BlockId.hs
- compiler/GHC/Cmm/CLabel.hs
- compiler/GHC/Cmm/CallConv.hs
- compiler/GHC/Cmm/CommonBlockElim.hs
- compiler/GHC/Cmm/ContFlowOpt.hs
- compiler/GHC/Cmm/Dataflow.hs
- compiler/GHC/Cmm/Dataflow/Block.hs
- compiler/GHC/Cmm/Dataflow/Collections.hs


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/6c112c6b7bd35e622410b3e0035c886b5742c5df...b15868a8f81ad7578cbf3d784345cf603239a130

-- 
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/6c112c6b7bd35e622410b3e0035c886b5742c5df...b15868a8f81ad7578cbf3d784345cf603239a130
You're receiving this email because of your account on gitlab.haskell.org.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.haskell.org/pipermail/ghc-commits/attachments/20200429/299c14f9/attachment-0001.html>


More information about the ghc-commits mailing list