[Git][ghc/ghc][wip/fabu/T24452-confusing-error] 16 commits: GHCi interpreter: Tag constructor closures when possible.

Sun Jun 30 02:10:58 UTC 2024

Fabricio Nascimento pushed to branch wip/fabu/T24452-confusing-error at Glasgow Haskell Compiler / GHC

Commits:
1bfa9111 by Andreas Klebinger at 2024-06-26T21:49:53-04:00
GHCi interpreter: Tag constructor closures when possible.

When evaluating PUSH_G try to tag the reference we are pushing if it's a
constructor. This is potentially helpful for performance and required to
fix #24870.

- - - - -
caf44a2d by Andrew Lelechenko at 2024-06-26T21:50:30-04:00
Implement Data.List.compareLength and Data.List.NonEmpty.compareLength

`compareLength xs n` is a safer and faster alternative to `compare (length xs) n`.
The latter would force and traverse the entire spine (potentially diverging),
while the former traverses as few elements as possible.

The implementation is carefully designed to maintain as much laziness as possible.

As per https://github.com/haskell/core-libraries-committee/issues/257

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f4606ae0 by Serge S. Gulin at 2024-06-26T21:51:05-04:00
Unicode: adding compact version of GeneralCategory (resolves #24789)

The following features are applied:
1. Lookup code like Cmm-switches (draft implementation proposed by Sylvain Henry @hsyl20)
2. Nested ifs (logarithmic search vs linear search) (the idea proposed by Sylvain Henry @hsyl20)

-------------------------
Metric Decrease:
    size_hello_artifact
    size_hello_unicode
-------------------------

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0e424304 by Hécate Kleidukos at 2024-06-26T21:51:44-04:00
haddock: Restructure import statements

This commit removes idiosyncrasies that have accumulated with the years
in how import statements were laid out, and defines clear but simple
guidelines in the CONTRIBUTING.md file.

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9b8ddaaf by Arnaud Spiwack at 2024-06-26T21:52:23-04:00
Rename test for #24725

I must have fumbled my tabs when I copy/pasted the issue number in
8c87d4e1136ae6d28e92b8af31d78ed66224ee16.

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b0944623 by Arnaud Spiwack at 2024-06-26T21:52:23-04:00
Add original reproducer for #24725

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77ce65a5 by Matthew Pickering at 2024-06-27T07:57:14-04:00
Expand LLVM version matching regex for compability with bsd systems

sed on BSD systems (such as darwin) does not support the + operation.

Therefore we take the simple minded approach of manually expanding
group+ to groupgroup*.

Fixes #24999

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bdfe4a9e by Matthew Pickering at 2024-06-27T07:57:14-04:00
ci: On darwin configure LLVMAS linker to match LLC and OPT toolchain

The version check was previously broken so the toolchain was not
detected at all.

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07e03a69 by Matthew Pickering at 2024-06-27T07:57:15-04:00
Update nixpkgs commit for darwin toolchain

One dependency (c-ares) changed where it hosted the releases which
breaks the build with the old nixpkgs commit.

- - - - -
144afed7 by Rodrigo Mesquita at 2024-06-27T07:57:50-04:00
base: Add changelog entry for #24998

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eebe1658 by Sylvain Henry at 2024-06-28T07:13:26-04:00
X86/DWARF: support no tables-next-to-code and asm-shortcutting (#22792)

- Without TNTC (tables-next-to-code), we must be careful to not
  duplicate labels in pprNatCmmDecl. Especially, as a CmmProc is
  identified by the label of its entry block (and not of its info
  table), we can't reuse the same label to delimit the block end and the
  proc end.

- We generate debug infos from Cmm blocks. However, when
  asm-shortcutting is enabled, some blocks are dropped at the asm
  codegen stage and some labels in the DebugBlocks become missing.
  We fix this by filtering the generated debug-info after the asm
  codegen to only keep valid infos.

Also add some related documentation.

- - - - -
6e86d82b by Sylvain Henry at 2024-06-28T07:14:06-04:00
PPC NCG: handle JMP to ForeignLabels (#23969)

- - - - -
9e4b4b0a by Sylvain Henry at 2024-06-28T07:14:06-04:00
PPC NCG: support loading 64-bit value on 32-bit arch (#23969)

- - - - -
50caef3e by Sylvain Henry at 2024-06-28T07:14:46-04:00
Fix warnings in genapply

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37139b17 by Matthew Pickering at 2024-06-28T07:15:21-04:00
libraries: Update os-string to 2.0.4

This updates the os-string submodule to 2.0.4 which removes the usage of
`TemplateHaskell` pragma.

- - - - -
996ccf58 by Fabricio de Sousa Nascimento at 2024-06-30T02:10:54+00:00
compiler: Fix emitting a confusing error for non visible class method

Changes the error message when trying to lookup names on GRE that
`must_have_parent` but we get an `AmbiguousOccurrence`. The new
behavior now points the user to the missing name, instead of the
name clash which would be unhelpful in solving their compiling issue.

Fixes #24452

- - - - -

30 changed files:

- .gitlab/darwin/nix/sources.json
- .gitlab/darwin/toolchain.nix
- compiler/GHC/ByteCode/Instr.hs
- compiler/GHC/Cmm/CLabel.hs
- compiler/GHC/Cmm/DebugBlock.hs
- compiler/GHC/CmmToAsm.hs
- compiler/GHC/CmmToAsm/PPC/CodeGen.hs
- compiler/GHC/CmmToAsm/PPC/Ppr.hs
- compiler/GHC/CmmToAsm/X86/Ppr.hs
- compiler/GHC/Platform.hs
- compiler/GHC/Rename/Env.hs
- libraries/base/changelog.md
- libraries/base/src/Data/List.hs
- libraries/base/src/Data/List/NonEmpty.hs
- libraries/ghc-internal/src/GHC/Internal/Unicode/Bits.hs
- libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/GeneralCategory.hs
- + libraries/ghc-internal/tools/ucd2haskell/exe/Generator/ByteString.hs
- + libraries/ghc-internal/tools/ucd2haskell/exe/Generator/GeneralCategory.hs
- + libraries/ghc-internal/tools/ucd2haskell/exe/Generator/RangeSwitch.hs
- + libraries/ghc-internal/tools/ucd2haskell/exe/Generator/WordEncoding.hs
- libraries/ghc-internal/tools/ucd2haskell/exe/UCD2Haskell/ModuleGenerators.hs
- libraries/ghc-internal/tools/ucd2haskell/ucd2haskell.cabal
- libraries/os-string
- m4/find_llvm_prog.m4
- rts/Interpreter.c
- testsuite/tests/interface-stability/base-exports.stdout
- testsuite/tests/interface-stability/base-exports.stdout-javascript-unknown-ghcjs
- testsuite/tests/interface-stability/base-exports.stdout-mingw32
- testsuite/tests/interface-stability/base-exports.stdout-ws-32
- + testsuite/tests/lib/base/CompareLength.hs

The diff was not included because it is too large.

View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/207229399ca19feef5d7538d6a0e4ad0a35c2c7d...996ccf58b82650071135a10539db45e830a0b414

-- 
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/207229399ca19feef5d7538d6a0e4ad0a35c2c7d...996ccf58b82650071135a10539db45e830a0b414
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