[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 10 commits: Remove the wrapper/coercion-passing logic for submultiplicity checks

[Marge Bot (@marge-bot)]

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


Commits:
d915dc8b by Arnaud Spiwack at 2024-10-07T19:23:00-04:00
Remove the wrapper/coercion-passing logic for submultiplicity checks

Instead, we use a dedicated DelayedError, which is emitted
systematically on submultiplicity checks, but is suppressed if we can
indeed solve the submultiplicity constraint with a reflexivity
coercion.

This way, we don't have to return anything from `tcSubMult`, which now
looks like a regular constraint check, the rest is implementation
detail. This removes all of the strange boilerplate that I'd been
struggling with under the previous implementation. Even if
submultiplicity checks are not properly constraints, this way it's
contained entirely within a `WantedConstraint`. Much more pleasant.

Closes #25128.

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1d226116 by Sven Tennie at 2024-10-07T19:23:37-04:00
AArch64: Implement switch/jump tables (#19912)

This improves the performance of Cmm switch statements (compared to a
chain of if statements.)

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3fe621dd by Mario Blažević at 2024-10-07T19:24:18-04:00
Fixes #25256, missing parens inside TH-printed pattern type signature

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ea4b4391 by ARATA Mizuki at 2024-10-07T19:24:59-04:00
Better documentation for floatRange function

Closes #16479

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ff09205c by Andreas Klebinger at 2024-10-07T19:25:35-04:00
Adjust progress message for hadrian to include cwd.

Fixes #25335

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5fd320da by Sven Tennie at 2024-10-07T19:26:12-04:00
CCallConv test: Align argument types

The C calling convention / standard requires that arguments and their
values are of the same type.

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c6e5fd3d by Cheng Shao at 2024-10-07T19:26:47-04:00
hadrian: remove unused ghciWithDebugger field from flavour config

This patch removes the ghciWithDebugger field from flavour config
since it's actually not used anywhere.

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9c9c790d by sheaf at 2024-10-07T19:27:23-04:00
user's guide: update docs for X86 CPU flags

This commit updates the section of the user's guide pertaining to
X86 feature flags with the following changes:

  - the NCG backend now supports SIMD, so remove all text
    that says the contrary,
  - the LLVM backend does not "automatically detect" features,
    so remove any text that makes that claim.

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8eb4eadc by Sven Tennie at 2024-10-08T08:05:37-04:00
ci: RISCV64 cross-compile testing

This adds a validation job which tests that we can build a riscv64 cross
compiler and build a simple program using it. We do not currently run
the whole testsuite.

Towards #25254

Co-authored-by: Matthew Pickering <matthewtpickering at gmail.com>

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d306c475 by Arnaud Spiwack at 2024-10-08T08:05:53-04:00
Remove unused accumulators in partition_errors

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30 changed files:

- .gitlab/generate-ci/gen_ci.hs
- .gitlab/jobs.yaml
- compiler/GHC/CmmToAsm/AArch64/CodeGen.hs
- compiler/GHC/CmmToAsm/AArch64/Instr.hs
- compiler/GHC/CmmToAsm/AArch64/Ppr.hs
- compiler/GHC/Hs/Pat.hs
- compiler/GHC/Hs/Syn/Type.hs
- compiler/GHC/Hs/Utils.hs
- compiler/GHC/HsToCore/Binds.hs
- compiler/GHC/HsToCore/Errors/Ppr.hs
- compiler/GHC/HsToCore/Errors/Types.hs
- compiler/GHC/HsToCore/Pmc/Desugar.hs
- compiler/GHC/HsToCore/Utils.hs
- compiler/GHC/Tc/Errors.hs
- compiler/GHC/Tc/Errors/Ppr.hs
- compiler/GHC/Tc/Errors/Types.hs
- compiler/GHC/Tc/Gen/Arrow.hs
- compiler/GHC/Tc/Gen/Bind.hs
- compiler/GHC/Tc/Gen/Expr.hs
- compiler/GHC/Tc/Gen/Match.hs
- compiler/GHC/Tc/Gen/Pat.hs
- compiler/GHC/Tc/Solver.hs
- compiler/GHC/Tc/TyCl/Utils.hs
- compiler/GHC/Tc/Types/Constraint.hs
- compiler/GHC/Tc/Types/Evidence.hs
- compiler/GHC/Tc/Utils/Env.hs
- compiler/GHC/Tc/Utils/Monad.hs
- compiler/GHC/Tc/Utils/TcMType.hs
- compiler/GHC/Tc/Utils/TcMType.hs-boot
- compiler/GHC/Tc/Utils/Unify.hs


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/967c49286f2bcaefe6a68d086ebf03be11c21741...d306c475b47384fb71b5bf73b4a44c4fb231b3f2

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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/967c49286f2bcaefe6a68d086ebf03be11c21741...d306c475b47384fb71b5bf73b4a44c4fb231b3f2
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