[Git][ghc/ghc][wip/T22623] 14 commits: Scrub some partiality in `GHC.Cmm.Info.Build`: `doSRTs` takes a `[(CAFSet,...

Wed Dec 21 13:42:04 UTC 2022

Simon Peyton Jones pushed to branch wip/T22623 at Glasgow Haskell Compiler / GHC

Commits:
703a4665 by M Farkas-Dyck at 2022-12-20T21:14:46-05:00
Scrub some partiality in `GHC.Cmm.Info.Build`: `doSRTs` takes a `[(CAFSet, CmmDecl)]` but truly wants a `[(CAFSet, CmmStatics)]`.

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9736ab74 by Matthew Pickering at 2022-12-20T21:15:22-05:00
packaging: Fix upload_ghc_libs.py script

This change reflects the changes where .cabal files are now generated by
hadrian rather than ./configure.

Fixes #22518

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7c6de18d by Ben Gamari at 2022-12-20T21:15:57-05:00
configure: Drop uses of AC_PROG_CC_C99

As noted in #22566, this macro is deprecated as of autoconf-2.70
`AC_PROG_CC` now sets `ac_cv_prog_cc_c99` itself.

Closes #22566.

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36c5d98e by Ben Gamari at 2022-12-20T21:15:57-05:00
configure: Use AS_HELP_STRING instead of AC_HELP_STRING

The latter has been deprecated.

See #22566.

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befe6ff8 by Bodigrim at 2022-12-20T21:16:37-05:00
GHCi.UI: fix various usages of head and tail

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666d0ba7 by Bodigrim at 2022-12-20T21:16:37-05:00
GHCi.UI: avoid head and tail in parseCallEscape and around

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5d96fd50 by Bodigrim at 2022-12-20T21:16:37-05:00
Make GHC.Driver.Main.hscTcRnLookupRdrName to return NonEmpty

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3ce2ab94 by Bodigrim at 2022-12-21T06:17:56-05:00
Allow transformers-0.6 in ghc, ghci, ghc-bin and hadrian

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954de93a by Bodigrim at 2022-12-21T06:17:56-05:00
Update submodule haskeline to HEAD (to allow transformers-0.6)

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cefbeec3 by Bodigrim at 2022-12-21T06:17:56-05:00
Update submodule transformers to 0.6.0.4

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b4730b62 by Bodigrim at 2022-12-21T06:17:56-05:00
Fix tests

T13253 imports MonadTrans, which acquired a quantified constraint in transformers-0.6, thus increase in allocations

Metric Increase:
    T13253

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0be75261 by Simon Peyton Jones at 2022-12-21T06:18:32-05:00
Abstract over the right free vars

Fix #22459, in two ways:

(1) Make the Specialiser not create a bogus specialisation if
    it is presented by strangely polymorphic dictionary.
    See Note [Weird special case in SpecDict] in
    GHC.Core.Opt.Specialise

(2) Be more careful in abstractFloats
    See Note [Which type variables to abstract over]
    in GHC.Core.Opt.Simplify.Utils.

So (2) stops creating the excessively polymorphic dictionary in
abstractFloats, while (1) stops crashing if some other pass should
nevertheless create a weirdly polymorphic dictionary.

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93039a08 by Simon Peyton Jones at 2022-12-21T13:41:54+00:00
Fix shadowing lacuna in OccurAnal

Issue #22623 demonstrated another lacuna in the implementation
of wrinkle (BS3) in Note [The binder-swap substitution] in
the occurrence analyser.

I was failing to add TyVar lambda binders using
addInScope/addOneInScope and that led to a totally bogus binder-swap
transformation.

Very easy to fix.

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ca5fda74 by Simon Peyton Jones at 2022-12-21T13:41:54+00:00
Fix an assertion check in addToEqualCtList

The old assertion saw that a constraint ct could rewrite itself
(of course it can) and complained (stupid).

Fixes #22645

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30 changed files:

- .gitlab/upload_ghc_libs.py
- compiler/GHC/Cmm.hs
- compiler/GHC/Cmm/Info/Build.hs
- compiler/GHC/Cmm/Pipeline.hs
- compiler/GHC/Core/Opt/OccurAnal.hs
- compiler/GHC/Core/Opt/Simplify.hs
- compiler/GHC/Core/Opt/Simplify/Utils.hs
- compiler/GHC/Core/Opt/Specialise.hs
- compiler/GHC/Core/Subst.hs
- compiler/GHC/Driver/Main.hs
- compiler/GHC/Runtime/Debugger.hs
- compiler/GHC/Runtime/Eval.hs
- compiler/GHC/Tc/Solver/Types.hs
- compiler/GHC/Utils/Outputable.hs
- compiler/ghc.cabal.in
- configure.ac
- distrib/configure.ac.in
- ghc/GHCi/UI.hs
- ghc/ghc-bin.cabal.in
- hadrian/hadrian.cabal
- libraries/ghci/ghci.cabal.in
- libraries/haskeline
- libraries/transformers
- − m4/fp_set_cflags_c99.m4
- testsuite/tests/ghci/scripts/T5979.stderr
- + testsuite/tests/simplCore/should_compile/T22459.hs
- + testsuite/tests/simplCore/should_compile/T22623.hs
- + testsuite/tests/simplCore/should_compile/T22623a.hs
- testsuite/tests/simplCore/should_compile/all.T
- + testsuite/tests/typecheck/should_fail/T22645.hs

The diff was not included because it is too large.

View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/e4540b0e18e265274323765fbb921e08f5fbfb26...ca5fda74566a4dd6660c1e3786bacb00328da227

-- 
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/e4540b0e18e265274323765fbb921e08f5fbfb26...ca5fda74566a4dd6660c1e3786bacb00328da227
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