[Git][ghc/ghc][wip/fix-hie-map] 31 commits: Add PlainPanic for throwing exceptions without depending on pprint

Matthew Pickering gitlab at gitlab.haskell.org
Thu May 30 09:55:25 UTC 2019



Matthew Pickering pushed to branch wip/fix-hie-map at Glasgow Haskell Compiler / GHC


Commits:
d9dfbde3 by Michael Sloan at 2019-05-24T15:55:07Z
Add PlainPanic for throwing exceptions without depending on pprint

This commit splits out a subset of GhcException which do not depend on
pretty printing (SDoc), as a new datatype called
PlainGhcException. These exceptions can be caught as GhcException,
because 'fromException' will convert them.

The motivation for this change is that that the Panic module
transitively depends on many modules, primarily due to pretty printing
code.  It's on the order of about 130 modules.  This large set of
dependencies has a few implications:

1. To avoid cycles / use of boot files, these dependencies cannot
throw GhcException.

2. There are some utility modules that use UnboxedTuples and also use
`panic`. This means that when loading GHC into GHCi, about 130
additional modules would need to be compiled instead of
interpreted. Splitting the non-pprint exception throwing into a new
module resolves this issue. See #13101

- - - - -
70c24471 by Moritz Angermann at 2019-05-25T21:51:30Z
Add `keepCAFs` to RtsSymbols

- - - - -
9be1749d by David Eichmann at 2019-05-25T21:55:05Z
Hadrian: Add Mising Libffi Dependencies #16653

Libffi is ultimately built from a single archive file (e.g.
libffi-tarballs/libffi-3.99999+git20171002+77e130c.tar.gz).
The file can be seen as the shallow dependency for the whole
libffi build. Hence, in all libffi rules, the archive is
`need`ed and the build directory is `trackAllow`ed.

- - - - -
2d0cf625 by Sandy Maguire at 2019-05-26T12:57:20Z
Let the specialiser work on dicts under lambdas

Following the discussion under #16473, this change allows the
specializer to work on any dicts in a lambda, not just those that occur
at the beginning.

For example, if you use data types which contain dictionaries and
higher-rank functions then once these are erased by the optimiser you
end up with functions such as:

```
  go_s4K9
  Int#
  -> forall (m :: * -> *).
     Monad m =>
     (forall x. Union '[State (Sum Int)] x -> m x) -> m ()
```

The dictionary argument is after the Int# value argument, this patch
allows `go` to be specialised.

- - - - -
4b228768 by Moritz Angermann at 2019-05-27T05:19:49Z
Lowercase windows imports

While windows and macOS are currently on case-insensitive file
systems, this poses no issue on those.  When cross compiling from
linux with a case sensitive file system and mingw providing only
lowercase headers, this in fact produces an issue.  As such we just
lowercase the import headers, which should still work fine on a
case insensitive file system and also enable mingw's headers to
be usable porperly.

- - - - -
01f8e390 by Alp Mestanogullari at 2019-05-27T14:06:26Z
Hadrian: Fix problem with unlit path in settings file

e529c65e introduced a problem in the logic for generating the
path to the unlit command in the settings file, and this patches
fixes it.

This fixes many tests, the simplest of which is:

> _build/stage1/bin/ghc testsuite/tests/parser/should_fail/T8430.lhs

which failed because of a wrong path for unlit, and now fails for the right
reason, with the error message expected for this test.

This addresses #16659.

- - - - -
dcd843ac by mizunashi_mana at 2019-05-27T14:06:27Z
Fix typo of primop format
- - - - -
3f6e5b97 by Joshua Price at 2019-05-27T14:06:28Z
Correct the large tuples section in user's guide

Fixes #16644.

- - - - -
1f51aad6 by Krzysztof Gogolewski at 2019-05-27T14:06:28Z
Fix tcfail158 (#15899)

As described in #15899, this test was broken, but now it's back
to normal.

- - - - -
723216e3 by Sebastian Graf at 2019-05-27T14:06:29Z
Add a pprTraceWith function

- - - - -
6d188dd5 by Simon Jakobi at 2019-05-27T14:06:31Z
base: Include (<$) in all exports of Functor

Previously the haddocks for Control.Monad and Data.Functor gave
the impression that `fmap` was the only Functor method.

Fixes #16681.

- - - - -
95b79173 by Jasper Van der Jeugt at 2019-05-27T14:06:32Z
Fix padding of entries in .prof files

When the number of entries of a cost centre reaches 11 digits, it takes
up the whole space reserved for it and the prof file ends up looking
like:

    ... no.        entries  %time %alloc   %time %alloc

        ...
    ... 120918     978250    0.0    0.0     0.0    0.0
    ... 118891          0    0.0    0.0    73.3   80.8
    ... 11890229702412351    8.9   13.5    73.3   80.8
    ... 118903  153799689    0.0    0.1     0.0    0.1
        ...

This results in tooling not being able to parse the .prof file.  I
realise we have the JSON output as well now, but still it'd be good to
fix this little weirdness.

Original bug report and full prof file can be seen here:
<https://github.com/jaspervdj/profiteur/issues/28>.

- - - - -
f80d3afd by John Ericson at 2019-05-27T14:06:33Z
hadrian: Fix generation of settings

I jumbled some lines in e529c65eacf595006dd5358491d28c202d673732,
messing up the leading underscores and rts ways settings. This broke at
least stage1 linking on macOS, but probably loads of other things too.

Should fix #16685 and #16658.

- - - - -
db8e3275 by Ömer Sinan Ağacan at 2019-05-27T14:06:37Z
Add missing opening braces in Cmm dumps

Previously -ddump-cmm was generating code with unbalanced curly braces:

     stg_atomically_entry() //  [R1]
             { info_tbls: [(cfl,
                            label: stg_atomically_info
                            rep: tag:16 HeapRep 1 ptrs { Thunk }
                            srt: Nothing)]
               stack_info: arg_space: 8 updfr_space: Just 8
             }
         {offset
           cfl: // cfk
               unwind Sp = Just Sp + 0;
               _cfk::P64 = R1;
               //tick src<rts/PrimOps.cmm:(1243,1)-(1245,1)>
               R1 = I64[_cfk::P64 + 8 + 8 + 0 * 8];
               call stg_atomicallyzh(R1) args: 8, res: 0, upd: 8;
         }
     }, <---- OPENING BRACE MISSING

After this patch:

     stg_atomically_entry() { //  [R1] <---- MISSING OPENING BRACE HERE
             { info_tbls: [(cfl,
                            label: stg_atomically_info
                            rep: tag:16 HeapRep 1 ptrs { Thunk }
                            srt: Nothing)]
               stack_info: arg_space: 8 updfr_space: Just 8
             }
         {offset
           cfl: // cfk
               unwind Sp = Just Sp + 0;
               _cfk::P64 = R1;
               //tick src<rts/PrimOps.cmm:(1243,1)-(1245,1)>
               R1 = I64[_cfk::P64 + 8 + 8 + 0 * 8];
               call stg_atomicallyzh(R1) args: 8, res: 0, upd: 8;
         }
     },

- - - - -
9334467f by Richard Eisenberg at 2019-05-28T04:24:50Z
Improve comments around injectivity checks

- - - - -
c8380a4a by Krzysztof Gogolewski at 2019-05-29T14:35:50Z
Handle hs-boot files in -Wmissing-home-modules (#16551)

- - - - -
7a75a094 by Alp Mestanogullari at 2019-05-29T14:36:35Z
testsuite: introduce 'static_stats' tests

They are a particular type of perf tests. This patch introduces a
'stats_files_dir' configuration field in the testsuite driver where all
haddock timing files (and possibly others in the future) are assumed to live.
We also change both the Make and Hadrian build systems to pass respectively
$(TOP)/testsuite/tests/perf/haddock/ and
<build root>/stage1/haddock-timing-files/ as the value of that new
configuration field, and to generate the timing files in those directories
in the first place while generating documentation with haddock.

This new test type can be seen as one dedicated to examining stats files that
are generated while building a GHC distribution. This also lets us get rid of
the 'extra_files' directives in the all.T entries for haddock.base,
haddock.Cabal and haddock.compiler.

- - - - -
32acecc2 by P.C. Shyamshankar at 2019-05-29T14:37:16Z
Minor spelling fixes to users guide.

- - - - -
b58b389b by Oleg Grenrus at 2019-05-29T14:37:54Z
Remove stale 8.2.1-notes

- - - - -
5bfd28f5 by Oleg Grenrus at 2019-05-29T14:37:54Z
Fix some warnings in users_guide (incl #16640)

- short underline
- :ghc-flag:, not :ghc-flags:
- :since: have to be separate
- newline before code block
- workaround anchor generation so

    - pragma:SPECIALISE
    - pragma:SPECIALIZE-INLINE
    - pragma:SPECIALIZE-inline

  are different anchors, not all the same `pragma:SPECIALIZE`

- - - - -
a5b14ad4 by Kevin Buhr at 2019-05-29T14:38:30Z
Add test for old issue displaying unboxed tuples in error messages (#502)

- - - - -
f9d61ebb by Krzysztof Gogolewski at 2019-05-29T14:39:05Z
In hole fits, don't show VTA for inferred variables (#16456)

We fetch the ArgFlag for every argument by using splitForAllVarBndrs
instead of splitForAllTys in unwrapTypeVars.

- - - - -
69b16331 by Krzysztof Gogolewski at 2019-05-29T14:39:43Z
Fix missing unboxed tuple RuntimeReps (#16565)

Unboxed tuples and sums take extra RuntimeRep arguments,
which must be manually passed in a few places.
This was not done in deSugar/Check.

This error was hidden because zipping functions in TyCoRep
ignored lists with mismatching length. This is now fixed;
the lengths are now checked by calling zipEqual.

As suggested in #16565, I moved checking for isTyVar and
isCoVar to zipTyEnv and zipCoEnv.

- - - - -
9062b625 by Nathan Collins at 2019-05-29T14:40:21Z
Don't lose parentheses in show SomeAsyncException
- - - - -
cc0d05a7 by Daniel Gröber at 2019-05-29T14:41:02Z
Add hPutStringBuffer utility

- - - - -
5b90e0a1 by Daniel Gröber at 2019-05-29T14:41:02Z
Allow using tagetContents for modules needing preprocessing

This allows GHC API clients, most notably tooling such as
Haskell-IDE-Engine, to pass unsaved files to GHC more easily.

Currently when targetContents is used but the module requires preprocessing
'preprocessFile' simply throws an error because the pipeline does not
support passing a buffer.

This change extends `runPipeline` to allow passing the input buffer into
the pipeline. Before proceeding with the actual pipeline loop the input
buffer is immediately written out to a new tempfile.

I briefly considered refactoring the pipeline at large to pass around
in-memory buffers instead of files, but this seems needlessly complicated
since no pipeline stages other than Hsc could really support this at the
moment.

- - - - -
fb26d467 by Daniel Gröber at 2019-05-29T14:41:02Z
downsweep: Allow TargetFile not to exist when a buffer is given

Currently 'getRootSummary' will fail with an exception if a 'TargetFile' is
given but it does not exist even if an input buffer is passed along for
this target.

In this case it is not necessary for the file to exist since the buffer
will be used as input for the compilation pipeline instead of the file
anyways.

- - - - -
4d51e0d8 by Ömer Sinan Ağacan at 2019-05-29T14:41:44Z
CNF.c: Move debug functions behind ifdef

- - - - -
ae968d41 by Vladislav Zavialov at 2019-05-29T14:42:20Z
tcMatchesFun s/rho/sigma #16692

- - - - -
2d2aa203 by Josh Meredith at 2019-05-29T14:43:03Z
Provide details in `plusSimplCount` errors

- - - - -
4443b3a1 by Matthew Pickering at 2019-05-30T09:55:18Z
Use types already in AST when making .hie file

These were meant to be added in !214 but for some reason wasn't included
in the patch.

Update Haddock submodule for new Types.hs hyperlinker output

- - - - -


30 changed files:

- compiler/basicTypes/UniqSupply.hs
- compiler/cmm/PprCmmDecl.hs
- compiler/deSugar/Check.hs
- compiler/ghc.cabal.in
- compiler/hieFile/HieAst.hs
- compiler/iface/BinFingerprint.hs
- compiler/main/DriverPipeline.hs
- compiler/main/GhcMake.hs
- compiler/main/HscTypes.hs
- compiler/prelude/primops.txt.pp
- compiler/simplCore/CoreMonad.hs
- compiler/specialise/Specialise.hs
- compiler/typecheck/FamInst.hs
- compiler/typecheck/TcHoleErrors.hs
- compiler/typecheck/TcMatches.hs
- compiler/typecheck/TcMatches.hs-boot
- compiler/typecheck/TcValidity.hs
- compiler/types/FamInstEnv.hs
- compiler/types/TyCoRep.hs
- compiler/types/TyCon.hs
- compiler/utils/Binary.hs
- compiler/utils/FastString.hs
- compiler/utils/Outputable.hs
- compiler/utils/Panic.hs
- + compiler/utils/PlainPanic.hs
- compiler/utils/Pretty.hs
- compiler/utils/StringBuffer.hs
- compiler/utils/Util.hs
- docs/users_guide/8.10.1-notes.rst
- − docs/users_guide/8.2.1-notes.rst


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/compare/1fe9eb9daa5c8133e503a92affa8ec17cc78256f...4443b3a148c8ba24894f21bd7c91b0f4ee6bde18

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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/compare/1fe9eb9daa5c8133e503a92affa8ec17cc78256f...4443b3a148c8ba24894f21bd7c91b0f4ee6bde18
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