[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 17 commits: base: Better error message on invalid getSystemTimerManager call

Tue Sep 1 09:39:31 UTC 2020

 Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC

Commits:
329f7cb9 by Ben Gamari at 2020-08-31T22:59:14-04:00
base: Better error message on invalid getSystemTimerManager call

Previously we would produce a rather unhelpful pattern match failure
error in the case where the user called `getSystemTimerManager` in a
program which isn't built with `-threaded`. This understandably confused
the user in #15616.

Fixes #15616.

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f6d70a8f by Roland Senn at 2020-08-31T22:59:50-04:00
Add tests for #15617.

Avoid a similar regression in the future.

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e5969fd0 by Roland Senn at 2020-08-31T23:00:27-04:00
Add additional tests for #18172 (Followup MR 3543)

There was still one active discussion [thread](https://gitlab.haskell.org/ghc/ghc/-/merge_requests/3543#note_284325) when MR !3543 got merged.

This MR adds the requested tests exercising the changes in
`compiler/GHC/HsToCore/Match/Literal.hs:warnAboutEmptyEnumerations` and its sub-functions.

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fe18b482 by Ben Gamari at 2020-08-31T23:01:02-04:00
Bump Win32 and process submodules

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2da93308 by Sylvain Henry at 2020-08-31T23:01:39-04:00
Hadrian: fix slow-validate flavour (#18586)

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85e13008 by Andreas Klebinger at 2020-08-31T23:02:15-04:00
Update dominator code with fixes from the dom-lt package.

Two bugs turned out in the package that have been fixed since.
This MR includes this fixes in the GHC port of the code.

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dffb38fa by Andreas Klebinger at 2020-08-31T23:02:15-04:00
Dominators.hs: Use unix line endings

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6189cc04 by Moritz Angermann at 2020-08-31T23:02:50-04:00
[fixup 3433] move debugBelch into IF_DEBUG(linker)

The commit in dff1cb3d9c111808fec60190747272b973547c52 incorrectly left
the `debugBelch` function without a comment or IF_DEBUG(linker,)
decoration. This rectifies it.

Needs at least a 8.10 backport, as it was backported in 6471cc6aff80d5deebbdb1bf7b677b31ed2af3d5

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bcb68a3f by Sylvain Henry at 2020-08-31T23:03:27-04:00
Don't store HomeUnit in UnitConfig

Allow the creation of a UnitConfig (hence of a UnitState) without having
a HomeUnit. It's required for #14335.

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0a372387 by Sylvain Henry at 2020-08-31T23:04:04-04:00
Fix documentation and fix "check" bignum backend (#18604)

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eb85f125 by Moritz Angermann at 2020-08-31T23:04:39-04:00
Set the dynamic-system-linker flag to Manual

This flag should be user controllable, hence Manual: True.

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380ef845 by Sven Tennie at 2020-08-31T23:05:14-04:00
Ignore more files

Ignore files from "new style" cabal builds (dist-newstyle folders) and
from clangd (C language server).

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74a7fbff by Takenobu Tani at 2020-08-31T23:05:51-04:00
Limit upper version of Happy for ghc-9.0 and earlier (#18620)

This patch adds the upper bound of a happy version for ghc-9.0
and earlier.

Currently, we can't use happy-1.20.0 for ghc-9.0.

See #18620.

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a4473f02 by Takenobu Tani at 2020-08-31T23:05:51-04:00
Limit upper version of Happy for ghc-9.2 (#18620)

This patch adds the upper bound of a happy version for ghc-9.2.

Currently, We can use happy-1.19 or happy-1.20 for ghc-9.2.

See #18620.

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a8a2568b by Sylvain Henry at 2020-08-31T23:06:28-04:00
Bignum: add BigNat compat functions (#18613)

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435b7933 by Sylvain Henry at 2020-09-01T05:39:22-04:00
Fix FastString lexicographic ordering (fix #18562)

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8f81b58d by Sylvain Henry at 2020-09-01T05:39:22-04:00
Remove "Ord FastString" instance

FastStrings can be compared in 2 ways: by Unique or lexically. We don't
want to bless one particular way with an "Ord" instance because it leads
to bugs (#18562) or to suboptimal code (e.g. using lexical comparison
while a Unique comparison would suffice).

UTF-8 encoding has the advantage that sorting strings by their encoded
bytes also sorts them by their Unicode code points, without having to
decode the actual code points. BUT GHC uses Modified UTF-8 which
diverges from UTF-8 by encoding \0 as 0xC080 instead of 0x00 (to avoid
null bytes in the middle of a String so that the string can still be
null-terminated). This patch adds a new `utf8CompareShortByteString`
function that performs sorting by bytes but that also takes Modified
UTF-8 into account. It is much more performant than decoding the strings
into [Char] to perform comparisons (which we did in the previous patch).

Bump haddock submodule

- - - - -

30 changed files:

- .gitignore
- aclocal.m4
- compiler/GHC/Builtin/Types/Literals.hs
- compiler/GHC/Cmm/CLabel.hs
- compiler/GHC/CmmToAsm/CFG/Dominators.hs
- compiler/GHC/Core/Coercion/Axiom.hs
- compiler/GHC/Core/Map.hs
- compiler/GHC/Core/Opt/Monad.hs
- compiler/GHC/Core/Rules.hs
- compiler/GHC/Core/TyCo/Rep.hs
- compiler/GHC/Data/FastString.hs
- compiler/GHC/Driver/Backpack.hs
- compiler/GHC/Hs/Lit.hs
- compiler/GHC/Iface/Ext/Ast.hs
- compiler/GHC/Iface/Ext/Debug.hs
- compiler/GHC/Iface/Ext/Types.hs
- compiler/GHC/Iface/Ext/Utils.hs
- compiler/GHC/Iface/Make.hs
- compiler/GHC/Iface/Recomp.hs
- compiler/GHC/IfaceToCore.hs
- compiler/GHC/Tc/Gen/Expr.hs
- compiler/GHC/Tc/TyCl.hs
- compiler/GHC/Types/CostCentre.hs
- compiler/GHC/Types/Literal.hs
- compiler/GHC/Types/Name/Occurrence.hs
- compiler/GHC/Types/SrcLoc.hs
- compiler/GHC/Unit/Info.hs
- compiler/GHC/Unit/Module/Name.hs
- compiler/GHC/Unit/State.hs
- compiler/GHC/Unit/Types.hs

The diff was not included because it is too large.

View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/b1fd44bad93ff54b9e956e4041fd56a83fc4a776...8f81b58d9dd4f7999ade954eb95c6fcf680b50a7

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