[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 6 commits: mkUnique refactoring (#18362)

[Marge Bot]

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


Commits:
e67ae884 by Aditya Gupta at 2020-08-22T03:29:00-04:00
mkUnique refactoring (#18362)

Move uniqFromMask from Unique.Supply to Unique.
Move the the functions that call mkUnique from Unique to Builtin.Uniques

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03cfcfd4 by Wander Hillen at 2020-08-22T03:29:36-04:00
Add ubuntu 20.04 jobs for nightly and release

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3f501545 by Craig Ferguson at 2020-08-22T03:30:13-04:00
Utils: clarify docs slightly

The previous comment implies `nTimes n f` is either `f^{n+1}` or
`f^{2^n}` (when in fact it's `f^n`).

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895d5c6b by Krzysztof Gogolewski at 2020-08-23T11:41:17-04:00
Do not print synonyms in :i (->), :i Type (#18594)

This adds a new printing flag `sdocPrintTypeAbbreviations` that is used
specifically to avoid ghci printing 'type (->) = (->)' and 'type Type = Type'.

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8a77ec11 by Krzysztof Gogolewski at 2020-08-23T11:41:17-04:00
Move pprTyTcApp' inside pprTyTcApp

No semantic change

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bcf959e3 by Sylvain Henry at 2020-08-23T11:41:20-04:00
Perf: make SDoc monad one-shot (#18202)

With validate-x86_64-linux-deb9-hadrian:
   T1969  -3.4% (threshold: +/-1%)
   T3294  -3.3% (threshold: +/-1%)
   T12707 -1.4% (threshold: +/-1%)

Additionally with validate-x86_64-linux-deb9-unreg-hadrian:
   T4801  -2.4% (threshold: +/-2%)
   T13035 -1.4% (threshold: +/-1%)
   T13379 -2.4% (threshold: +/-2%)
   ManyAlternatives -2.5% (threshold: +/-2%)
   ManyConstructors -3.0% (threshold: +/-2%)

Metric Decrease:
    T12707
    T1969
    T3294
    ManyAlternatives
    ManyConstructors
    T13035
    T13379
    T4801

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30 changed files:

- .gitlab-ci.yml
- compiler/GHC/Builtin/Names.hs
- compiler/GHC/Builtin/Names/TH.hs
- compiler/GHC/Builtin/PrimOps.hs
- compiler/GHC/Builtin/Types.hs
- compiler/GHC/Builtin/Types.hs-boot
- compiler/GHC/Builtin/Types/Prim.hs
- compiler/GHC/Builtin/Uniques.hs
- compiler/GHC/Builtin/Uniques.hs-boot
- compiler/GHC/CmmToAsm/Reg/Graph/Base.hs
- compiler/GHC/CmmToAsm/Reg/Graph/SpillClean.hs
- compiler/GHC/Core/DataCon.hs
- compiler/GHC/Core/DataCon.hs-boot
- compiler/GHC/Core/Opt/Arity.hs
- compiler/GHC/Core/Opt/Exitify.hs
- compiler/GHC/Core/Opt/Monad.hs
- compiler/GHC/Core/TyCon.hs
- compiler/GHC/Core/TyCon.hs-boot
- compiler/GHC/CoreToByteCode.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Iface/Ext/Ast.hs
- compiler/GHC/Iface/Syntax.hs
- compiler/GHC/Iface/Type.hs
- compiler/GHC/Platform/Reg.hs
- compiler/GHC/Platform/Reg/Class.hs
- compiler/GHC/Stg/Pipeline.hs
- compiler/GHC/Tc/TyCl/Utils.hs
- compiler/GHC/Tc/Utils/Monad.hs
- compiler/GHC/Tc/Validity.hs
- compiler/GHC/Types/FieldLabel.hs


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/32c60ff475435d94f1a3fb3f089b738c897b724d...bcf959e3f25d948aa48dc26440932ebd8dfbfdf1

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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/32c60ff475435d94f1a3fb3f089b738c897b724d...bcf959e3f25d948aa48dc26440932ebd8dfbfdf1
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