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30f442a9
by Teo Camarasu at 2026-01-20T13:57:26-05:00
base: don't expose GHC.Num.{BigNat, Integer, Natural}
We no longer expose GHC.Num.{BigNat, Integer, Natural} from base instead users should get these modules from ghc-bignum.
We make this change to insulate end users from changes to GHC's implementation of big numbers.
Implements CLC proposal 359: https://github.com/haskell/core-libraries-committee/issues/359
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75a9053d
by Teo Camarasu at 2026-01-20T13:58:07-05:00
base: deprecate GHC internals in GHC.Num
Implements CLC proposal: https://github.com/haskell/core-libraries-committee/issues/360
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9534b032
by Andreas Klebinger at 2026-01-20T13:58:50-05:00
ghc-experimental: Update Changelog
I tried to reconstruct a high level overview of the changes and when
they were made since we introduced it.
Fixes #26506
Co-authored-by: Teo Camarasu <teofilcamarasu@gmail.com>
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346f2f5a
by Cheng Shao at 2026-01-20T13:59:30-05:00
hadrian: remove RTS options in ghc-in-ghci flavour
This patch removes the RTS options passed to ghc in ghc-in-ghci
flavour, to workaround command line argument handling issue in
hls/hie-boot that results in `-O64M` instead of `+RTS -O64M -RTS`
being passed to ghc. It's not a hadrian bug per se, since ghc's own
ghc-in-ghci multi repl works fine, but we should still make sure HLS
works. Closes #26801.
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759fd15a
by Andreas Klebinger at 2026-01-21T16:05:28-05:00
Don't build GHC with -Wcompat
Without bumping the boot compiler the warnings it produces are often not
actionable leading to pointless noise.
Fixes #26800
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3172db94
by Torsten Schmits at 2026-01-21T16:06:11-05:00
Use the correct field of ModOrigin when formatting error message listing hidden reexports
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485c12b2
by Cheng Shao at 2026-01-21T16:06:54-05:00
Revert "hadrian: handle findExecutable "" gracefully"
This reverts commit 1e5752f64a522c4025365856d92f78073a7b3bba. The
underlying issue has been fixed in
https://github.com/haskell/directory/commit/75828696e7145adc09179111a0d631b9a09963a4
and present since 1.3.9.0, and hadrian directory lower bound is
1.3.9.0, so we can revert our own in house hack now.
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5efb58dc
by Cheng Shao at 2026-01-21T16:07:36-05:00
rts: fix typo in TICK_ALLOC_RTS
This patch fixes a typo in the `TICK_ALLOC_RTS` macro, the original
`bytes` argument was silently dropped. The Cmm code has its own
version of `TICK_ALLOC_RTS` not affected by this typo, it affected the
C RTS, and went unnoticed because the variable `n` happened to also be
available at its call site. But the number was incorrect. Also fixes
its call site since `WDS()` is not available in C.
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c406ea69
by Cheng Shao at 2026-01-21T16:07:36-05:00
rts: remove broken & unused ALLOC_P_TICKY
This patch removes the `ALLOC_P_TICKY` macro from the rts, it's
unused, and its expanded code is already broken.
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34a27e20
by Simon Peyton Jones at 2026-01-21T16:08:17-05:00
Make the implicit-parameter class have representational role
This MR addresses #26737, by making the built-in class IP
have a representational role for its second parameter.
See Note [IP: implicit parameter class] in
ghc-internal:GHC.Internal.Classes.IP
In fact, IP is (unfortunately, currently) exposed by
base:GHC.Base, so we ran a quick CLC proposal to
agree the change:
https://github.com/haskell/core-libraries-committee/issues/385
Some (small) compilations get faster because they only need to
load (small) interface file GHC.Internal.Classes.IP.hi,
rather than (large) GHC.Internal.Classes.hi.
Metric Decrease:
T10421
T12150
T12425
T24582
T5837
T5030
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ca79475f
by Cheng Shao at 2026-01-21T16:09:00-05:00
testsuite: avoid re.sub in favor of simple string replacements
This patch refactors the testsuite driver and avoids the usage of
re.sub in favor of simple string replacements when possible. The
changes are not comprehensive, and there are still a lot of re.sub
usages lingering around the tree, but this already addresses a major
performance bottleneck in the testsuite driver that might has to do
with quadratic or worse slowdown in cpython's regular expression
engine when handling certain regex patterns with large strings.
Especially on i386, and i386 jobs are the bottlenecks of all full-ci
validate pipelines!
Here are the elapsed times of testing x86_64/i386 with -j48 before
this patch:
x86_64: `Build completed in 6m06s`
i386: `Build completed in 1h36m`
And with this patch:
x86_64: `Build completed in 4m55s`
i386: `Build completed in 4m23s`
Fixes #26786.
Co-authored-by: Codex <codex@openai.com>
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88c93796
by Zubin Duggal at 2026-01-21T16:09:42-05:00
ghc-toolchain: Also configure windres on non-windows platforms.
It may be needed for cross compilation.
Fixes #24588
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9788c0ec
by Cheng Shao at 2026-01-21T16:10:24-05:00
ghci: print external interpreter trace messages to stderr instead of stdout
This patch makes ghci print external interpreter trace messages to
stderr instead of stdout, which is a much saner choice for diagnostic
information. Closes #26807.
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cc7f670c
by Cheng Shao at 2026-01-21T23:56:02+01:00
WIP