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[Git][ghc/ghc][wip/T26875] 9 commits: Support more x86 extensions: AVX-512 {BW,DQ,VL} and GFNI
by Teo Camarasu (＠teo) 18 Feb '26

18 Feb '26

Teo Camarasu pushed to branch wip/T26875 at Glasgow Haskell Compiler / GHC Commits: 14f485ee by ARATA Mizuki at 2026-02-17T09:09:24+09:00 Support more x86 extensions: AVX-512 {BW,DQ,VL} and GFNI Also, mark AVX-512 ER and PF as deprecated. AVX-512 instructions can be used for certain 64-bit integer vector operations. GFNI can be used to implement bitReverse (currently not used by NCG, but LLVM may use it). Closes #26406 Addresses #26509 - - - - - 016f79d5 by fendor at 2026-02-17T09:16:16-05:00 Hide implementation details from base exception stack traces Ensure we hide the implementation details of the exception throwing mechanisms: * `undefined` * `throwSTM` * `throw` * `throwIO` * `error` The `HasCallStackBacktrace` should always have a length of exactly 1, not showing internal implementation details in the stack trace, as these are vastly distracting to end users. CLC proposal [#387](https://github.com/haskell/core-libraries-committee/issues/387) - - - - - 4f2840f2 by Brian J. Cardiff at 2026-02-17T17:04:08-05:00 configure: Accept happy-2.2 In Jan 2026 happy-2.2 was released. The most sensible change is https://github.com/haskell/happy/issues/335 which didn't trigger in a fresh build - - - - - 10b4d364 by Duncan Coutts at 2026-02-17T17:04:52-05:00 Fix errors in the documentation of the eventlog STOP_THREAD status codes Fix the code for BlockedOnMsgThrowTo. Document all the known historical warts. Fixes issue #26867 - - - - - c5e15b8b by Phil de Joux at 2026-02-18T05:07:36-05:00 haddock: use snippets for all list examples - generate snippet output for docs - reduce font size to better fit snippets - Use only directive to guard html snippets - Add latex snippets for lists - - - - - d388bac1 by Phil de Joux at 2026-02-18T05:07:36-05:00 haddock: Place the snippet input and output together - Put the output seemingly inside the example box - - - - - 016fa306 by Samuel Thibault at 2026-02-18T05:08:35-05:00 Fix linking against libm by moving the -lm option For those systems that need -lm for getting math functions, this is currently added on the link line very early, before the object files being linked together. Newer toolchains enable --as-needed by default, which means -lm is ignored at that point because no object requires a math function yet. With such toolchains, we thus have to add -lm after the objects, so the linker actually includes libm in the link. - - - - - 68bd0805 by Teo Camarasu at 2026-02-18T05:09:19-05:00 ghc-internal: Move GHC.Internal.Data.Bool to base This is a tiny module that only defines bool :: Bool -> a -> a -> a. We can just move this to base and delete it from ghc-internal. If we want this functionality there we can just use a case statement or if-then expression. Resolves 26865 - - - - - 82000eaa by Teo Camarasu at 2026-02-18T10:56:53+00:00 ghc-internal: avoid depending on GHC.Internal.Control.Monad.Fix This module contains the definition of MonadFix, since we want an instance for IO, that instance requires a lot of machinery and we want to avoid an orphan instance, this will naturally be quite high up in the dependency graph. So we want to avoid other modules depending on it as far as possible. Resolves #26875 - - - - - 120 changed files: - compiler/GHC/Builtin/Names.hs - compiler/GHC/CmmToAsm/Config.hs - compiler/GHC/CmmToAsm/X86/CodeGen.hs - compiler/GHC/CmmToAsm/X86/Instr.hs - compiler/GHC/CmmToAsm/X86/Ppr.hs - compiler/GHC/Driver/Config/CmmToAsm.hs - compiler/GHC/Driver/DynFlags.hs - compiler/GHC/Driver/Pipeline/Execute.hs - compiler/GHC/Driver/Session.hs - compiler/GHC/Linker/Dynamic.hs - compiler/GHC/SysTools/Cpp.hs - docs/users_guide/9.16.1-notes.rst - docs/users_guide/eventlog-formats.rst - docs/users_guide/phases.rst - docs/users_guide/using.rst - libraries/base/changelog.md - libraries/base/src/Control/Arrow.hs - libraries/base/src/Data/Bool.hs - libraries/base/src/Data/List.hs - libraries/base/src/Data/List/NubOrdSet.hs - libraries/base/src/GHC/Exts.hs - libraries/base/src/System/IO.hs - libraries/ghc-internal/ghc-internal.cabal.in - libraries/ghc-internal/src/GHC/Internal/Control/Arrow.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/Fix.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/ST/Lazy/Imp.hs - − libraries/ghc-internal/src/GHC/Internal/Data/Bool.hs - libraries/ghc-internal/src/GHC/Internal/Data/Foldable.hs - libraries/ghc-internal/src/GHC/Internal/Data/Function.hs - libraries/ghc-internal/src/GHC/Internal/Data/Functor/Identity.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Bool.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Ord.hs - libraries/ghc-internal/src/GHC/Internal/Data/Version.hs - libraries/ghc-internal/src/GHC/Internal/Exception.hs - libraries/ghc-internal/src/GHC/Internal/IO/FD.hs - libraries/ghc-internal/src/GHC/Internal/JS/Prim.hs - libraries/ghc-internal/src/GHC/Internal/STM.hs - libraries/ghc-internal/src/GHC/Internal/System/IO.hs - libraries/ghc-internal/src/GHC/Internal/System/IO/OS.hs - libraries/ghc-internal/src/GHC/Internal/TH/Lift.hs - libraries/ghc-internal/src/GHC/Internal/TH/Monad.hs - libraries/ghc-internal/src/GHC/Internal/TypeError.hs - + libraries/ghc-internal/tests/backtraces/T15395.hs - + libraries/ghc-internal/tests/backtraces/T15395.stdout - 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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/8b5fa580049dd07d74f958f55491be… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/8b5fa580049dd07d74f958f55491be… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/fendor/linkable-usage] 11 commits: Support more x86 extensions: AVX-512 {BW,DQ,VL} and GFNI
by Hannes Siebenhandl (＠fendor) 18 Feb '26

18 Feb '26

Hannes Siebenhandl pushed to branch wip/fendor/linkable-usage at Glasgow Haskell Compiler / GHC Commits: 14f485ee by ARATA Mizuki at 2026-02-17T09:09:24+09:00 Support more x86 extensions: AVX-512 {BW,DQ,VL} and GFNI Also, mark AVX-512 ER and PF as deprecated. AVX-512 instructions can be used for certain 64-bit integer vector operations. GFNI can be used to implement bitReverse (currently not used by NCG, but LLVM may use it). Closes #26406 Addresses #26509 - - - - - 016f79d5 by fendor at 2026-02-17T09:16:16-05:00 Hide implementation details from base exception stack traces Ensure we hide the implementation details of the exception throwing mechanisms: * `undefined` * `throwSTM` * `throw` * `throwIO` * `error` The `HasCallStackBacktrace` should always have a length of exactly 1, not showing internal implementation details in the stack trace, as these are vastly distracting to end users. CLC proposal [#387](https://github.com/haskell/core-libraries-committee/issues/387) - - - - - 4f2840f2 by Brian J. Cardiff at 2026-02-17T17:04:08-05:00 configure: Accept happy-2.2 In Jan 2026 happy-2.2 was released. The most sensible change is https://github.com/haskell/happy/issues/335 which didn't trigger in a fresh build - - - - - 10b4d364 by Duncan Coutts at 2026-02-17T17:04:52-05:00 Fix errors in the documentation of the eventlog STOP_THREAD status codes Fix the code for BlockedOnMsgThrowTo. Document all the known historical warts. Fixes issue #26867 - - - - - c5e15b8b by Phil de Joux at 2026-02-18T05:07:36-05:00 haddock: use snippets for all list examples - generate snippet output for docs - reduce font size to better fit snippets - Use only directive to guard html snippets - Add latex snippets for lists - - - - - d388bac1 by Phil de Joux at 2026-02-18T05:07:36-05:00 haddock: Place the snippet input and output together - Put the output seemingly inside the example box - - - - - 016fa306 by Samuel Thibault at 2026-02-18T05:08:35-05:00 Fix linking against libm by moving the -lm option For those systems that need -lm for getting math functions, this is currently added on the link line very early, before the object files being linked together. Newer toolchains enable --as-needed by default, which means -lm is ignored at that point because no object requires a math function yet. With such toolchains, we thus have to add -lm after the objects, so the linker actually includes libm in the link. - - - - - 68bd0805 by Teo Camarasu at 2026-02-18T05:09:19-05:00 ghc-internal: Move GHC.Internal.Data.Bool to base This is a tiny module that only defines bool :: Bool -> a -> a -> a. We can just move this to base and delete it from ghc-internal. If we want this functionality there we can just use a case statement or if-then expression. Resolves 26865 - - - - - c45e90e1 by Matthew Pickering at 2026-02-18T11:16:59+01:00 Add support for ghc-debug to ghc executable - - - - - bc1c437c by fendor at 2026-02-18T11:16:59+01:00 Add bytecode linkable regression test - - - - - cdc44268 by fendor at 2026-02-18T11:16:59+01:00 WIP: LinkableUsage - - - - - 140 changed files: - .gitmodules - compiler/GHC/ByteCode/Serialize.hs - compiler/GHC/CmmToAsm/Config.hs - compiler/GHC/CmmToAsm/X86/CodeGen.hs - compiler/GHC/CmmToAsm/X86/Instr.hs - compiler/GHC/CmmToAsm/X86/Ppr.hs - compiler/GHC/Driver/Config/CmmToAsm.hs - compiler/GHC/Driver/DynFlags.hs - compiler/GHC/Driver/Hooks.hs - compiler/GHC/Driver/Main.hs - compiler/GHC/Driver/Pipeline.hs - compiler/GHC/Driver/Pipeline/Execute.hs - compiler/GHC/Driver/Plugins.hs - compiler/GHC/Driver/Session.hs - compiler/GHC/HsToCore/Usage.hs - compiler/GHC/Iface/Recomp.hs - compiler/GHC/Iface/Recomp/Types.hs - compiler/GHC/Linker/ByteCode.hs - compiler/GHC/Linker/Deps.hs - compiler/GHC/Linker/Dynamic.hs - 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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/47420bcbe490a7a36bbcb04fc329ab… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/47420bcbe490a7a36bbcb04fc329ab… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][master] ghc-internal: Move GHC.Internal.Data.Bool to base
by Marge Bot (＠marge-bot) 18 Feb '26

18 Feb '26

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC Commits: 68bd0805 by Teo Camarasu at 2026-02-18T05:09:19-05:00 ghc-internal: Move GHC.Internal.Data.Bool to base This is a tiny module that only defines bool :: Bool -> a -> a -> a. We can just move this to base and delete it from ghc-internal. If we want this functionality there we can just use a case statement or if-then expression. Resolves 26865 - - - - - 31 changed files: - libraries/base/src/Data/Bool.hs - libraries/base/src/Data/List.hs - libraries/base/src/Data/List/NubOrdSet.hs - libraries/base/src/GHC/Exts.hs - libraries/ghc-internal/ghc-internal.cabal.in - − libraries/ghc-internal/src/GHC/Internal/Data/Bool.hs - libraries/ghc-internal/src/GHC/Internal/Data/Foldable.hs - libraries/ghc-internal/src/GHC/Internal/Data/Function.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Bool.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Ord.hs - libraries/ghc-internal/src/GHC/Internal/Data/Version.hs - libraries/ghc-internal/src/GHC/Internal/IO/FD.hs - libraries/ghc-internal/src/GHC/Internal/JS/Prim.hs - libraries/ghc-internal/src/GHC/Internal/System/IO/OS.hs - libraries/ghc-internal/src/GHC/Internal/TH/Lift.hs - libraries/ghc-internal/src/GHC/Internal/TypeError.hs - utils/haddock/html-test/ref/A.html - utils/haddock/html-test/ref/Bug1004.html - utils/haddock/html-test/ref/Bug1033.html - utils/haddock/html-test/ref/Bug1103.html - utils/haddock/html-test/ref/Bug548.html - utils/haddock/html-test/ref/Bug923.html - utils/haddock/html-test/ref/ConstructorPatternExport.html - utils/haddock/html-test/ref/FunArgs.html - utils/haddock/html-test/ref/Hash.html - utils/haddock/html-test/ref/Instances.html - utils/haddock/html-test/ref/LinearTypes.html - utils/haddock/html-test/ref/RedactTypeSynonyms.html - utils/haddock/html-test/ref/T23616.html - utils/haddock/html-test/ref/Test.html - utils/haddock/html-test/ref/TypeFamilies3.html The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/68bd08055594b8cbf6148a72d108786… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/68bd08055594b8cbf6148a72d108786… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][master] Fix linking against libm by moving the -lm option
by Marge Bot (＠marge-bot) 18 Feb '26

18 Feb '26

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC Commits: 016fa306 by Samuel Thibault at 2026-02-18T05:08:35-05:00 Fix linking against libm by moving the -lm option For those systems that need -lm for getting math functions, this is currently added on the link line very early, before the object files being linked together. Newer toolchains enable --as-needed by default, which means -lm is ignored at that point because no object requires a math function yet. With such toolchains, we thus have to add -lm after the objects, so the linker actually includes libm in the link. - - - - - 1 changed file: - compiler/GHC/Linker/Dynamic.hs Changes: ===================================== compiler/GHC/Linker/Dynamic.hs ===================================== @@ -227,7 +227,6 @@ linkDynLib logger tmpfs dflags0 unit_env o_files dep_packages runLink logger tmpfs linker_config ( map Option verbFlags - ++ libmLinkOpts platform ++ [ Option "-o" , FileOption "" output_fn ] @@ -260,6 +259,7 @@ linkDynLib logger tmpfs dflags0 unit_env o_files dep_packages -- driver is a more pragmatic solution. ++ [ Option "-Wl,--Bsymbolic,--experimental-pic,--unresolved-symbols=import-dynamic" | arch == ArchWasm32 ] ++ extra_ld_inputs + ++ libmLinkOpts platform ++ map Option lib_path_opts ++ map Option pkg_lib_path_opts ++ map Option pkg_link_opts View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/016fa306cd8afdaac56ebdebe44a447… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/016fa306cd8afdaac56ebdebe44a447… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][master] 2 commits: haddock: use snippets for all list examples
by Marge Bot (＠marge-bot) 18 Feb '26

18 Feb '26

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC Commits: c5e15b8b by Phil de Joux at 2026-02-18T05:07:36-05:00 haddock: use snippets for all list examples - generate snippet output for docs - reduce font size to better fit snippets - Use only directive to guard html snippets - Add latex snippets for lists - - - - - d388bac1 by Phil de Joux at 2026-02-18T05:07:36-05:00 haddock: Place the snippet input and output together - Put the output seemingly inside the example box - - - - - 24 changed files: - utils/haddock/doc/.gitignore - utils/haddock/doc/Makefile - + utils/haddock/doc/_static/haddock-custom.css - utils/haddock/doc/conf.py - utils/haddock/doc/markup.rst - + utils/haddock/doc/snippets/.gitignore - + utils/haddock/doc/snippets/Lists.hs - + utils/haddock/doc/snippets/Makefile - + utils/haddock/doc/snippets/Snippet-List-Bulleted.html - + utils/haddock/doc/snippets/Snippet-List-Bulleted.tex - + utils/haddock/doc/snippets/Snippet-List-Definition.html - + utils/haddock/doc/snippets/Snippet-List-Definition.tex - + utils/haddock/doc/snippets/Snippet-List-Enumerated.html - + utils/haddock/doc/snippets/Snippet-List-Enumerated.tex - + utils/haddock/doc/snippets/Snippet-List-Indentation.html - + utils/haddock/doc/snippets/Snippet-List-Indentation.tex - + utils/haddock/doc/snippets/Snippet-List-Multiline-Item.html - + utils/haddock/doc/snippets/Snippet-List-Multiline-Item.tex - + utils/haddock/doc/snippets/Snippet-List-Nested-Item.html - + utils/haddock/doc/snippets/Snippet-List-Nested-Item.tex - + utils/haddock/doc/snippets/Snippet-List-Not-Newline.html - + utils/haddock/doc/snippets/Snippet-List-Not-Newline.tex - + utils/haddock/doc/snippets/Snippet-List-Not-Separated.html - + utils/haddock/doc/snippets/Snippet-List-Not-Separated.tex Changes: ===================================== utils/haddock/doc/.gitignore ===================================== @@ -1 +1,3 @@ -.build-html \ No newline at end of file +.build-html +.build-latex +!_static ===================================== utils/haddock/doc/Makefile ===================================== @@ -1,8 +1,13 @@ SPHINX_BUILD ?= sphinx-build -all : html +all : html pdf .PHONY : html +.PHONY : pdf html : $(SPHINX_BUILD) -b html . .build-html + +pdf : + $(SPHINX_BUILD) -b latex . .build-latex + cd .build-latex && make ===================================== utils/haddock/doc/_static/haddock-custom.css ===================================== @@ -0,0 +1,19 @@ +.result.admonition { + border: solid 3px #eee; + border-top: none; + background-color: transparent; + padding: 1px 0px 10px 10px; + margin: 0px 0px -20px 0px; + position: relative; + top: -18px; +} + +.result.admonition p.admonition-title{ + position: absolute; + visibility: hidden; +} + +/* Use a small font size for code blocks so that they don't overflow. */ +pre { + font-size: 0.8em; +} ===================================== utils/haddock/doc/conf.py ===================================== @@ -31,6 +31,12 @@ pygments_style = 'tango' htmlhelp_basename = 'Haddockdoc' +html_static_path = ['_static'] + +html_css_files = [ + 'haddock-custom.css', +] + # -- Options for LaTeX output --------------------------------------------- ===================================== utils/haddock/doc/markup.rst ===================================== @@ -1004,99 +1004,162 @@ Itemized and Enumerated Lists A bulleted item is represented by preceding a paragraph with either “``*``” or “``-``”. A sequence of bulleted paragraphs is rendered as an -itemized list in the generated documentation, e.g.: :: +itemized list in the generated documentation, e.g. - -- | This is a bulleted list: - -- - -- * first item - -- - -- * second item +.. literalinclude:: snippets/Lists.hs + :lines: 3-7 + +.. admonition:: Result + :class: result + + .. only:: html + + .. raw:: html + :file: snippets/Snippet-List-Bulleted.html + + .. only:: latex + + .. raw:: latex + :file: snippets/Snippet-List-Bulleted.tex + +.. warning:: + + Separate lists from any preceding markup with at least one blank line + otherwise the list and its items will be rendered with the preceding + content. + +.. literalinclude:: snippets/Lists.hs + :lines: 10-12 + +.. admonition:: Result + :class: result + + .. only:: html + + .. raw:: html + :file: snippets/Snippet-List-Not-Separated.html + + .. only:: latex + + .. raw:: latex + :file: snippets/Snippet-List-Not-Separated.tex An enumerated list is similar, except each paragraph must be preceded by -either “``(n)``” or “``n.``” where n is any integer. e.g. :: +either “``(n)``” or “``n.``” where n is any integer. e.g. - -- | This is an enumerated list: - -- - -- (1) first item - -- - -- 2. second item +.. literalinclude:: snippets/Lists.hs + :lines: 15-19 -Lists of the same type don't have to be separated by a newline: :: +.. admonition:: Result + :class: result - -- | This is an enumerated list: - -- - -- (1) first item - -- 2. second item - -- - -- This is a bulleted list: - -- - -- * first item - -- * second item + .. only:: html -You can have more than one line of content in a list element: :: + .. raw:: html + :file: snippets/Snippet-List-Enumerated.html - -- | - -- * first item - -- and more content for the first item - -- * second item - -- and more content for the second item + .. only:: latex + + .. raw:: latex + :file: snippets/Snippet-List-Enumerated.tex + +Lists of the same type don't have to be separated by a newline: + +.. literalinclude:: snippets/Lists.hs + :lines: 22-30 + +.. admonition:: Result + :class: result + + .. only:: html + + .. raw:: html + :file: snippets/Snippet-List-Not-Newline.html + + .. only:: latex + + .. raw:: latex + :file: snippets/Snippet-List-Not-Newline.tex + +You can have more than one line of content in a list element: + +.. literalinclude:: snippets/Lists.hs + :lines: 33-37 + +.. admonition:: Result + :class: result + + .. only:: html + + .. raw:: html + :file: snippets/Snippet-List-Multiline-Item.html + + .. only:: latex + + .. raw:: latex + :file: snippets/Snippet-List-Multiline-Item.tex You can even nest whole paragraphs inside of list elements. The rules are 4 spaces for each indentation level. You're required to use a -newline before such nested paragraphs: :: - - {-| - * Beginning of list - This belongs to the list above! +newline before such nested paragraphs: - > nested - > bird - > tracks +.. literalinclude:: snippets/Lists.hs + :lines: 40-61 - * Next list - More of the indented list. +.. admonition:: Result + :class: result - * Deeper + .. only:: html - @ - even code blocks work - @ + .. raw:: html + :file: snippets/Snippet-List-Nested-Item.html - * Deeper + .. only:: latex - 1. Even deeper! - 2. No newline separation even in indented lists. - -} + .. raw:: latex + :file: snippets/Snippet-List-Nested-Item.tex The indentation of the first list item is honoured. That is, in the following example the items are on the same level. Before Haddock 2.16.1, the second item would have been nested under the first item -which was unexpected. :: +which was unexpected. - {-| - * foo +.. literalinclude:: snippets/Lists.hs + :lines: 64-68 - * bar - -} +.. admonition:: Result + :class: result + + .. only:: html + + .. raw:: html + :file: snippets/Snippet-List-Indentation.html + + .. only:: latex + + .. raw:: latex + :file: snippets/Snippet-List-Indentation.tex Definition Lists ~~~~~~~~~~~~~~~~ -Definition lists are written as follows: :: +Definition lists are written as follows: - -- | This is a definition list: - -- - -- [@foo@]: The description of @foo@. - -- - -- [@bar@]: The description of @bar@. +.. literalinclude:: snippets/Lists.hs + :lines: 71-75 + +.. admonition:: Result + :class: result + + .. only:: html -To produce output something like this: + .. raw:: html + :file: snippets/Snippet-List-Definition.html -``foo`` - The description of ``foo``. + .. only:: latex -``bar`` - The description of ``bar``. + .. raw:: latex + :file: snippets/Snippet-List-Definition.tex Each paragraph should be preceded by the “definition term” enclosed in square brackets and followed by a colon. Other markup operators may be ===================================== utils/haddock/doc/snippets/.gitignore ===================================== @@ -0,0 +1,12 @@ +*.html +*.tex +haddock-bundle.min.js +haddock.sty +linuwial.css +main.tex +meta.json +quick-jump.css +synopsis.png + +!Snippet*.html +!Snippet*.tex ===================================== utils/haddock/doc/snippets/Lists.hs ===================================== @@ -0,0 +1,76 @@ +module Lists where + +-- | This is a bulleted list: +-- +-- * first item +-- +-- * second item +data Bulleted + +-- | __Missing blank lines__ before a list: +-- * first item +-- * second item +data Before + +-- | This is an, (n) n., enumerated list: +-- +-- (1) first item +-- +-- 2. second item +data Enumerated + +-- | This is an enumerated list, with items not separated by newlines: +-- +-- (1) first item +-- 2. second item +-- +-- This is a bulleted list, with items not separated by newlines: +-- +-- * first item +-- * second item +data NotNewline + +-- | +-- * first item +-- and more content for the first item +-- * second item +-- and more content for the second item +data MultilineItem + +{-| +* Beginning of list +This belongs to the list above! + + > nested + > bird + > tracks + + * Next list + More of the indented list. + + * Deeper + + @ + even code blocks work + @ + + * Deeper + + 1. Even deeper! + 2. No newline separation even in indented lists. +-} +data NestedItem + +{-| + * foo + + * bar +-} +data Indentation + +-- | This is a definition list: +-- +-- [@foo@]: The description of @foo@. +-- +-- [@bar@]: The description of @bar@. +data DefinitionList \ No newline at end of file ===================================== utils/haddock/doc/snippets/Makefile ===================================== @@ -0,0 +1,103 @@ +# \newcommand{\haddockbegindoc}{\hfill\\[1ex]} +HDK_BEGIN := \\\\newcommand{\\haddockbegindoc}{\\hfill\\\\\[1ex]} + +# \newcommand{\haddockverb}{\small} +HDK_VERB := \\\\newcommand{\\haddockverb}{\\small} + +# \newcommand{\haddocktt}[1]{{\small \texttt{#1}}} +HDK_TT := \\\\newcommand{\\haddocktt}[1]{{\\small \\\\texttt{\#1}}} + +all: \ + Snippet-List-Bulleted.html \ + Snippet-List-Bulleted.tex \ + Snippet-List-Not-Separated.html \ + Snippet-List-Not-Separated.tex \ + Snippet-List-Enumerated.html \ + Snippet-List-Enumerated.tex \ + Snippet-List-Not-Newline.html \ + Snippet-List-Not-Newline.tex \ + Snippet-List-Multiline-Item.html \ + Snippet-List-Multiline-Item.tex \ + Snippet-List-Nested-Item.html \ + Snippet-List-Nested-Item.tex \ + Snippet-List-Indentation.html \ + Snippet-List-Indentation.tex \ + Snippet-List-Definition.html \ + Snippet-List-Definition.tex + +clean: + rm -f Lists*.html + +Lists.html: Lists.hs + haddock --html $^ + +Lists.tex: Lists.hs + haddock --latex $^ + +# Using pandoc-3.1.3 +Lists-Pretty.html: Lists.html + pandoc $^ -o $@ + +# Using tex-fmt-0.4.1 +# nix profile install github:wgunderwood/tex-fmt +Lists-Pretty.tex: Lists.tex + cp $^ $@ + tex-fmt $@ + +Snippet-List-Bulleted.html: Lists-Pretty.html + sed -n '48,52p;53q' $^ > $@ + +Snippet-List-Bulleted.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + sed -n '18,26p;27q' $^ >> $@ + +Snippet-List-Not-Separated.html: Lists-Pretty.html + sed -n '59,60p;61q' $^ > $@ + +Snippet-List-Not-Separated.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + sed -n '33,36p;37q' $^ >> $@ + +Snippet-List-Enumerated.html: Lists-Pretty.html + sed -n '68,72p;73q' $^ > $@ + +Snippet-List-Enumerated.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + sed -n '43,51p;52q' $^ >> $@ + +Snippet-List-Not-Newline.html: Lists-Pretty.html + sed -n '80,89p;90q' $^ > $@ + +Snippet-List-Not-Newline.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + sed -n '58,74p;75q' $^ >> $@ + +Snippet-List-Multiline-Item.html: Lists-Pretty.html + sed -n '97,100p;101q' $^ > $@ + +Snippet-List-Multiline-Item.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + sed -n '81,90p;91q' $^ >> $@ + +Snippet-List-Nested-Item.html: Lists-Pretty.html + sed -n '108,127p;128q' $^ > $@ + +Snippet-List-Nested-Item.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + echo "$(HDK_VERB)" >> $@ + sed -n '97,141p;142q' $^ >> $@ + +Snippet-List-Indentation.html: Lists-Pretty.html + sed -n '135,138p;139q' $^ > $@ + +Snippet-List-Indentation.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + sed -n '148,155p;156q' $^ >> $@ + +Snippet-List-Definition.html: Lists-Pretty.html + sed -n '146,156p;157q' $^ > $@ + +Snippet-List-Definition.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + echo "$(HDK_TT)" >> $@ + sed -n '162,170p;171q' $^ >> $@ ===================================== utils/haddock/doc/snippets/Snippet-List-Bulleted.html ===================================== @@ -0,0 +1,5 @@ +This is a bulleted list: +<ul> +<li>first item</li> +<li>second item</li> +</ul> ===================================== utils/haddock/doc/snippets/Snippet-List-Bulleted.tex ===================================== @@ -0,0 +1,10 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} + {\haddockbegindoc + This is a bulleted list:\par + \vbox{ + \begin{itemize} + \item + first item\par + \item + second item\par + \end{itemize}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Definition.html ===================================== @@ -0,0 +1,11 @@ +This is a definition list: +<dl> +<dt><code>foo</code></dt> +<dd> +The description of <code>foo</code>. +</dd> +<dt><code>bar</code></dt> +<dd> +The description of <code>bar</code>. +</dd> +</dl> ===================================== utils/haddock/doc/snippets/Snippet-List-Definition.tex ===================================== @@ -0,0 +1,11 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} +\newcommand{\haddocktt}[1]{{\small \texttt{#1}}} + {\haddockbegindoc + This is a definition list:\par + \vbox{ + \begin{description} + \item[\haddocktt{foo}]\hfill \par + The description of \haddocktt{foo}. + \item[\haddocktt{bar}]\hfill \par + The description of \haddocktt{bar}. + \end{description}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Enumerated.html ===================================== @@ -0,0 +1,5 @@ +This is an, (n) n., enumerated list: +<ol> +<li>first item</li> +<li>second item</li> +</ol> ===================================== utils/haddock/doc/snippets/Snippet-List-Enumerated.tex ===================================== @@ -0,0 +1,10 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} + {\haddockbegindoc + This is an, (n) n., enumerated list:\par + \vbox{ + \begin{enumerate} + \item + first item\par + \item + second item\par + \end{enumerate}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Indentation.html ===================================== @@ -0,0 +1,4 @@ +<ul> +<li>foo</li> +<li>bar</li> +</ul> ===================================== utils/haddock/doc/snippets/Snippet-List-Indentation.tex ===================================== @@ -0,0 +1,9 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} + {\haddockbegindoc + \vbox{ + \begin{itemize} + \item + foo\par + \item + bar\par + \end{itemize}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Multiline-Item.html ===================================== @@ -0,0 +1,4 @@ +<ul> +<li>first item and more content for the first item</li> +<li>second item and more content for the second item</li> +</ul> ===================================== utils/haddock/doc/snippets/Snippet-List-Multiline-Item.tex ===================================== @@ -0,0 +1,11 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} + {\haddockbegindoc + \vbox{ + \begin{itemize} + \item + first item + and more content for the first item\par + \item + second item + and more content for the second item\par + \end{itemize}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Nested-Item.html ===================================== @@ -0,0 +1,20 @@ +<ul> +<li>Beginning of list This belongs to the list above! +<pre><code>nested +bird +tracks</code></pre> +<ul> +<li>Next list More of the indented list. +<ul> +<li>Deeper +<pre><code>even code blocks work</code></pre> +<ul> +<li>Deeper +<ol> +<li>Even deeper!</li> +<li>No newline separation even in indented lists.</li> +</ol></li> +</ul></li> +</ul></li> +</ul></li> +</ul> ===================================== utils/haddock/doc/snippets/Snippet-List-Nested-Item.tex ===================================== @@ -0,0 +1,47 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} +\newcommand{\haddockverb}{\small} + {\haddockbegindoc + \vbox{ + \begin{itemize} + \item + Beginning of list + This belongs to the list above!\par + \begin{quote} + {\haddockverb + \begin{verbatim} +nested +bird +tracks + \end{verbatim}} + \end{quote} + \vbox{ + \begin{itemize} + \item + Next list + More of the indented list.\par + \vbox{ + \begin{itemize} + \item + Deeper\par + \begin{quote} + {\haddockverb + \begin{verbatim} +even code blocks work + \end{verbatim}} + \end{quote} + \vbox{ + \begin{itemize} + \item + Deeper\par + \vbox{ + \begin{enumerate} + \item + Even deeper!\par + \item + No newline separation even in + indented lists.\par + \end{enumerate}} + \end{itemize}} + \end{itemize}} + \end{itemize}} + \end{itemize}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Not-Newline.html ===================================== @@ -0,0 +1,10 @@ +This is an enumerated list, with items not separated by newlines: +<ol> +<li>first item</li> +<li>second item</li> +</ol> +This is a bulleted list, with items not separated by newlines: +<ul> +<li>first item</li> +<li>second item</li> +</ul> ===================================== utils/haddock/doc/snippets/Snippet-List-Not-Newline.tex ===================================== @@ -0,0 +1,18 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} + {\haddockbegindoc + This is an enumerated list, with items not separated by newlines:\par + \vbox{ + \begin{enumerate} + \item + first item\par + \item + second item\par + \end{enumerate}} + This is a bulleted list, with items not separated by newlines:\par + \vbox{ + \begin{itemize} + \item + first item\par + \item + second item\par + \end{itemize}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Not-Separated.html ===================================== @@ -0,0 +1,2 @@ +Missing blank lines before a list: * first item * +second item ===================================== utils/haddock/doc/snippets/Snippet-List-Not-Separated.tex ===================================== @@ -0,0 +1,5 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} + {\haddockbegindoc + \textbf{Missing blank lines} before a list: + * first item + * second item\par} View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/10b4d3641f6fe7a7443bd621d62d13… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/10b4d3641f6fe7a7443bd621d62d13… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/fendor/ghci-load-all-targets] 42 commits: Remove exprIsCheap from doFloatFromRhs
by Hannes Siebenhandl (＠fendor) 18 Feb '26

18 Feb '26

Hannes Siebenhandl pushed to branch wip/fendor/ghci-load-all-targets at Glasgow Haskell Compiler / GHC Commits: 2b4f463c by Simon Peyton Jones at 2026-02-02T17:32:32+00:00 Remove exprIsCheap from doFloatFromRhs See #26854 and Note [Float when expandable] This patch simplifies the code, by removing an extra unnecessary test. - - - - - 9db7f21f by Brandon Chinn at 2026-02-03T09:15:10-05:00 Refactor: make function patterns exhaustive Also added missing (==) logic for: * HsMultilineString * HsInt{8,16,32} * HsWord{8,16,32} - - - - - aa9c5e2c by Hécate Kleidukos at 2026-02-03T15:58:35-05:00 driver: Hide source paths at verbosity level 1 by default - - - - - c64cca1e by mangoiv at 2026-02-03T15:59:29-05:00 ExplicitLevelImports: check staging for types just like for values Previously, imported types were entirely exempted from staging checks as the implicit stage persistance assumed to be all imported types to be well staged. ExplicitLevelImports' change specification, however, does not do such an exemption. Thus we want to introduce such a check, just like we have for values. ExplicitLevelImports does not, however, talk about local names - from its perspective, we could theoretically keep treating locally introduced types specially - e.g. an ill-staged used in a quote would only emit a warning, not an error. To allow for a potential future migration away from such wrinkles as the staging check in notFound (see Note [Out of scope might be a staging error]) we consistently do the strict staging check that we also do for value if ExplicitLevelImports is on. Closes #26098 - - - - - 5f0dbeb6 by Simon Hengel at 2026-02-03T16:00:12-05:00 Use Haddock formatting in deprecation message of `initNameCache` - - - - - 01ecb612 by Andreas Klebinger at 2026-02-04T09:56:25-05:00 testsuite: Explicitly use utf-8 encoding in rts-includes linter. Not doing so caused failures on windows, as python failed to pick a reasonable encoding even with locale set. Fixes #26850 - - - - - ea0d1317 by Zubin Duggal at 2026-02-04T09:57:06-05:00 Bump transformers submodule to 0.6.3.0 Fixes #26790 - - - - - cbe4300e by Simon Peyton Jones at 2026-02-05T04:31:04-05:00 Fix subtle bug in GHC.Core.Utils.mkTick This patch fixes a decade-old bug in `mkTick`, which could generate type-incorrect code! See the diagnosis in #26772. The new code is simpler and easier to understand. (As #26772 says, I think it could be improved further.) - - - - - a193a8da by Simon Peyton Jones at 2026-02-05T04:31:04-05:00 Modify a debug-trace in the Simplifier ...just to show a bit more information. - - - - - b579dfdc by Simon Peyton Jones at 2026-02-05T04:31:04-05:00 Fix long-standing interaction between ticks and casts The code for Note [Eliminate Identity Cases] was simply wrong when ticks and casts interacted. This patch fixes the interaction. It was shown up when validating #26772, although it's not the exactly the bug that's reported by #26772. Nor is it easy to reproduce, hence no regression test. - - - - - fac0de1e by Cheng Shao at 2026-02-05T04:31:49-05:00 libraries: bump Cabal submodule to 3.16.1.0 - - - - - 00589122 by Cheng Shao at 2026-02-05T04:31:49-05:00 libraries: bump deepseq submodule to 1.5.2.0 Also: - Get rid of usage of deprecated `NFData` function instance in the compiler - `T21391` still relies on `NFData` function instance, add `-Wno-deprecations` for the time being. - - - - - 84474c71 by Cheng Shao at 2026-02-05T04:31:50-05:00 libraries: bump directory submodule to 1.3.10.1 - - - - - 1a9f4662 by Cheng Shao at 2026-02-05T04:31:50-05:00 libraries: bump exceptions submodule to 0.10.12 - - - - - 2e39a340 by Peng Fan at 2026-02-07T03:42:01-05:00 NCG/LA64: adjust register usage to avoid src-register being clobbered - - - - - 9faf1b35 by Teo Camarasu at 2026-02-07T03:42:43-05:00 ghc-internal: Delete unnecessary GHC.Internal.Data.Ix This module merely re-exports GHC.Internal.Ix. It was copied from `base` when `ghc-internal` was split, but there is no reason to have this now. So, let's delete it. Resolves #26848 - - - - - d112b440 by Sven Tennie at 2026-02-07T10:47:56-05:00 Add cabal.project file to generate-ci This fixes the HLS setup for our CI code generation script (generate-ci). The project file simply makes `generate-ci` of the cabal file discoverable. - - - - - 5339f6f0 by Andreas Klebinger at 2026-02-07T10:48:40-05:00 CI: Don't collapse test results. This puts test output back into the primary test log instead of a subsection removing the need to expand a section to see test results. While the intention was good in practice the old behaviour mostly wastes time by requiring expansion of the section. Fixes #26882 - - - - - 0e1cd2e0 by Evan Piro at 2026-02-08T10:35:16-08:00 Linker.MacOS reduce dynflags import - - - - - 1c79a4cd by Michael Alan Dorman at 2026-02-09T08:11:51-05:00 Remove `extra_src_files` variable from `testsuite/driver/testlib.py` While reading through the test harness code, I noticed this variable with a TODO attached that referenced #12223. Although that bug is closed, it strongly implied that this special-case variable that only affected a single test was expected to be removed at some point. I also looked at 3415bcaa0b1903b5e12dfaadb5b774718e406eab---where it was added---whose commit message suggested that it would have been desirable to remove it, but that there were special circumstances that meant it had to remain (though it doesn't elucidate what those special circumstances are). However, the special circumstances were mentioned as if the test was in a different location than is currently is, so I decided to try changing the test to use the standard `extra_files` mechanism, which works in local testing. This also seems like a reasonable time to remove the script that was originally used in the transition, since it doesn't really serve a purpose anymore. - - - - - 0020e38a by Matthew Pickering at 2026-02-09T17:29:14-05:00 determinism: Use a stable sort in WithHsDocIdentifiers binary instance `WithHsDocIdentifiers` is defined as ``` 71 data WithHsDocIdentifiers a pass = WithHsDocIdentifiers 72 { hsDocString :: !a 73 , hsDocIdentifiers :: ![Located (IdP pass)] 74 } ``` This list of names is populated from `rnHsDocIdentifiers`, which calls `lookupGRE`, which calls `lookupOccEnv_AllNameSpaces`, which calls `nonDetEltsUFM` and returns the results in an order depending on uniques. Sorting the list with a stable sort before returning the interface makes the output deterministic and follows the approach taken by other fields in `Docs`. Fixes #26858 - - - - - 89898ce6 by echoumcp1 at 2026-02-09T17:30:01-05:00 Replace putstrln with logMsg in handleSeqHValueStatus Fixes #26549 - - - - - 7c52c4f9 by John Paul Adrian Glaubitz at 2026-02-10T13:52:43-05:00 rts: Switch prim to use modern atomic compiler builtins The __sync_*() atomic compiler builtins have been deprecated in GCC for a while now and also don't provide variants for 64-bit values such as __sync_fetch_and_add_8(). Thus, replace them with the modern __atomic_*() compiler builtins and while we're at it, also drop the helper macro CAS_NAND() which is now no longer needed since we stopped using the __sync_*() compiler builtins altogether. Co-authored-by: Ilias Tsitsimpis <iliastsi(a)debian.org> Fixes #26729 - - - - - cf60850a by Recursion Ninja at 2026-02-10T13:53:27-05:00 Decoupling L.H.S.Decls from GHC.Types.ForeignCall - Adding TTG extension point for 'CCallTarget' - Adding TTG extension point for 'CType' - Adding TTG extension point for 'Header' - Moving ForeignCall types that do not need extension to new L.H.S.Decls.Foreign module - Replacing 'Bool' parameters with descriptive data-types to increase clairty and prevent "Boolean Blindness" - - - - - 11a04cbb by Eric Lee at 2026-02-11T09:20:46-05:00 Derive Semigroup/Monoid for instances believed could be derived in #25871 - - - - - 15d9ce44 by Eric Lee at 2026-02-11T09:20:46-05:00 add Ghc.Data.Pair deriving - - - - - c85dc170 by Evan Piro at 2026-02-11T09:21:45-05:00 Linker.MacOS reduce options import - - - - - a541dd83 by Chris Wendt at 2026-02-11T16:06:41-05:00 Initialize plugins for `:set +c` in GHCi Fixes #23110. - - - - - 0f5a73bc by Cheng Shao at 2026-02-11T16:07:27-05:00 compiler: add Binary Text instance This patch adds `Binary` instance for strict `Text`, in preparation of making `Text` usable in certain GHC API use cases (e.g. haddock). This also introduces `text` as a direct dependency of the `ghc` package. - - - - - 9e58b8a1 by Cheng Shao at 2026-02-11T16:08:10-05:00 ghc-toolchain: add C11 check This patch partially reverts commit b8307eab80c5809df5405d76c822bf86877f5960 that removed C99 check in autoconf/ghc-toolchain. Now we: - No longer re-implement `FP_SET_CFLAGS_C11` similar to `FP_SET_CFLAGS_C99` in the past, since autoconf doesn't provide a convenient `AC_PROG_CC_C11` function. ghc-toolchain will handle it anyway. - The Cmm CPP C99 check is relanded and repurposed for C11. - The C99 logic in ghc-toolchain is relanded and repurposed for C11. - The C99 check in Stg.h is corrected to check for C11. The obsolete _ISOC99_SOURCE trick is dropped. - Usages of `-std=gnu99` in the testsuite are corrected to use `-std=gnu11`. Closes #26908. - - - - - 4df0adf6 by Simon Peyton Jones at 2026-02-11T21:50:13-05:00 Simplify the treatment of static forms This MR implements GHC proposal 732: simplify static forms, https://github.com/ghc-proposals/ghc-proposals/pull/732 thereby addressing #26556. See `Note [Grand plan for static forms]` in GHC.Iface.Tidy.StaticPtrTable The main changes are: * There is a new, simple rule for (static e), namely that the free term variables of `e` must be bound at top level. The check is done in the `HsStatic` case of `GHC.Rename.Expr.rnExpr` * That in turn substantially simplifies the info that the typechecker carries around in its type environment. Hooray. * The desugarer emits static bindings to top level directly; see the `HsStatic` case of `dsExpr`. * There is no longer any special static-related magic in the FloatOut pass. And the main Simplifier pipeline no longer needs a special case to run FloatOut even with -O0. Hooray. All this forced an unexpected change to the pattern match checker. It recursively invokes the main Hs desugarer when it wants to take a look at a term to spot some special cases (notably constructor applications). We don't want to emit any nested (static e) bindings to top level a second time! Yikes. That forced a modest refactor in GHC.HsToCore.Pmc: * The `dsl_nablas` field of `DsLclEnv` now has a `NoPmc` case, which says "I'm desugaring just for pattern-match checking purposes". * When that flag is set we don't emit static binds. That in turn forces a cascade of refactoring, but the net effect is an improvement; less risk of duplicated (even exponential?) work. See Note [Desugaring HsExpr during pattern-match checking]. 10% metric decrease, on some architectures, of compile-time max-bytes-used on T15304. Metric Decrease: T15304 - - - - - 7922f728 by Teo Camarasu at 2026-02-11T21:50:58-05:00 ghc-internal: avoid depending on GHC.Internal.Exts This module is mostly just re-exports. It made sense as a user-facing module, but there's no good reason ghc-internal modules should depend on it and doing so linearises the module graph - move considerAccessible to GHC.Internal.Magic Previously it lived in GHC.Internal.Exts, but it really deserves to live along with the other magic function, which are already re-exported from .Exts - move maxTupleSize to GHC.Internal.Tuple This previously lived in GHC.Internal.Exts but a comment already said it should be moved to .Tuple Resolves #26832 - - - - - b6a4a29b by Eric Lee at 2026-02-11T21:51:55-05:00 Remove unused Semigroup imports to fix GHC 9.14 bootstrapping - - - - - 99d8c146 by Simon Peyton Jones at 2026-02-12T17:36:59+00:00 Fix subtle bug in cast worker/wrapper See (CWw4) in Note [Cast worker/wrapper]. The true payload is in the change to the definition of GHC.Types.Id.Info.hasInlineUnfolding Everthing else is just documentation. There is a 2% compile time decrease for T13056; I'll take the win! Metric Decrease: T13056 - - - - - 530e8e58 by Simon Peyton Jones at 2026-02-12T20:17:23-05:00 Add regression tests for four StaticPtr bugs Tickets #26545, #24464, #24773, #16981 are all solved by the recently-landed MR commit 318ee13bcffa6aa8df42ba442ccd92aa0f7e210c Author: Simon Peyton Jones <simon.peytonjones(a)gmail.com> Date: Mon Oct 20 23:07:20 2025 +0100 Simplify the treatment of static forms This MR just adds regression tests for them. - - - - - 4157160f by Cheng Shao at 2026-02-13T06:27:04-05:00 ci: remove unused hlint-ghc-and-base job definition This patch removes the unused `hlint-ghc-and-base` job definition, it's never run since !9806. Note that hadrian lint rules still work locally, so anyone that wishes to run hlint on the codebase can continue to do so in their local worktree. - - - - - 039f1977 by Cheng Shao at 2026-02-13T06:27:47-05:00 wasm: use import.meta.main for proper distinction of nodejs main modules This patch uses `import.meta.main` for proper distinction of nodejs main modules, especially when the main module might be installed as a symlink. Fixes #26916. - - - - - 14f485ee by ARATA Mizuki at 2026-02-17T09:09:24+09:00 Support more x86 extensions: AVX-512 {BW,DQ,VL} and GFNI Also, mark AVX-512 ER and PF as deprecated. AVX-512 instructions can be used for certain 64-bit integer vector operations. GFNI can be used to implement bitReverse (currently not used by NCG, but LLVM may use it). Closes #26406 Addresses #26509 - - - - - 016f79d5 by fendor at 2026-02-17T09:16:16-05:00 Hide implementation details from base exception stack traces Ensure we hide the implementation details of the exception throwing mechanisms: * `undefined` * `throwSTM` * `throw` * `throwIO` * `error` The `HasCallStackBacktrace` should always have a length of exactly 1, not showing internal implementation details in the stack trace, as these are vastly distracting to end users. CLC proposal [#387](https://github.com/haskell/core-libraries-committee/issues/387) - - - - - 4f2840f2 by Brian J. Cardiff at 2026-02-17T17:04:08-05:00 configure: Accept happy-2.2 In Jan 2026 happy-2.2 was released. The most sensible change is https://github.com/haskell/happy/issues/335 which didn't trigger in a fresh build - - - - - 10b4d364 by Duncan Coutts at 2026-02-17T17:04:52-05:00 Fix errors in the documentation of the eventlog STOP_THREAD status codes Fix the code for BlockedOnMsgThrowTo. Document all the known historical warts. Fixes issue #26867 - - - - - edb1e67f by fendor at 2026-02-18T10:16:38+01:00 Introduce `-fimport-loaded-targets` GHCi flag This new flag automatically adds all loaded targets to the GHCi session by adding an `InteractiveImport` for the loaded targets. By default, this flag is disabled, as it potentially increases memory-usage. This interacts with the flag `-fno-load-initial-targets` as follows: * If no module is loaded, no module is added as an interactive import. * If a reload loads up to a module, all loaded modules are added as interactive imports. * Unloading modules removes them from the interactive context. Fixes #26866 by rendering the use of a `-ghci-script` to achieve the same thing redundant. - - - - - 316 changed files: - .gitlab-ci.yml - .gitlab/ci.sh - + .gitlab/generate-ci/cabal.project - compiler/GHC/Builtin/Names.hs - compiler/GHC/Builtin/Types.hs - compiler/GHC/CmmToAsm/Config.hs - compiler/GHC/CmmToAsm/LA64/CodeGen.hs - compiler/GHC/CmmToAsm/X86/CodeGen.hs - compiler/GHC/CmmToAsm/X86/Instr.hs - compiler/GHC/CmmToAsm/X86/Ppr.hs - compiler/GHC/CmmToLlvm/CodeGen.hs - compiler/GHC/Core/Lint.hs - compiler/GHC/Core/Opt/Pipeline.hs - compiler/GHC/Core/Opt/SetLevels.hs - compiler/GHC/Core/Opt/Simplify/Env.hs - compiler/GHC/Core/Opt/Simplify/Iteration.hs - compiler/GHC/Core/Opt/Simplify/Utils.hs - compiler/GHC/Core/Opt/WorkWrap.hs - compiler/GHC/Core/TyCon.hs - compiler/GHC/Core/Utils.hs - compiler/GHC/CoreToStg.hs - compiler/GHC/CoreToStg/AddImplicitBinds.hs - compiler/GHC/Data/Pair.hs - compiler/GHC/Driver/Config/CmmToAsm.hs - compiler/GHC/Driver/Config/Core/Lint.hs - compiler/GHC/Driver/DynFlags.hs - 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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/a349b9ba7a7ccbf3753ecd4cabdcbd… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/a349b9ba7a7ccbf3753ecd4cabdcbd… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 4 commits: haddock: use snippets for all list examples
by Marge Bot (＠marge-bot) 17 Feb '26

17 Feb '26

Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC Commits: c28348db by Phil de Joux at 2026-02-18T00:16:46-05:00 haddock: use snippets for all list examples - generate snippet output for docs - reduce font size to better fit snippets - Use only directive to guard html snippets - Add latex snippets for lists - - - - - 856e2143 by Phil de Joux at 2026-02-18T00:16:46-05:00 haddock: Place the snippet input and output together - Put the output seemingly inside the example box - - - - - 83297209 by Samuel Thibault at 2026-02-18T00:16:58-05:00 Fix linking against libm by moving the -lm option For those systems that need -lm for getting math functions, this is currently added on the link line very early, before the object files being linked together. Newer toolchains enable --as-needed by default, which means -lm is ignored at that point because no object requires a math function yet. With such toolchains, we thus have to add -lm after the objects, so the linker actually includes libm in the link. - - - - - 9d45aeb1 by Teo Camarasu at 2026-02-18T00:16:59-05:00 ghc-internal: Move GHC.Internal.Data.Bool to base This is a tiny module that only defines bool :: Bool -> a -> a -> a. We can just move this to base and delete it from ghc-internal. If we want this functionality there we can just use a case statement or if-then expression. Resolves 26865 - - - - - 56 changed files: - compiler/GHC/Linker/Dynamic.hs - libraries/base/src/Data/Bool.hs - libraries/base/src/Data/List.hs - libraries/base/src/Data/List/NubOrdSet.hs - libraries/base/src/GHC/Exts.hs - libraries/ghc-internal/ghc-internal.cabal.in - − libraries/ghc-internal/src/GHC/Internal/Data/Bool.hs - libraries/ghc-internal/src/GHC/Internal/Data/Foldable.hs - libraries/ghc-internal/src/GHC/Internal/Data/Function.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Bool.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Ord.hs - libraries/ghc-internal/src/GHC/Internal/Data/Version.hs - libraries/ghc-internal/src/GHC/Internal/IO/FD.hs - libraries/ghc-internal/src/GHC/Internal/JS/Prim.hs - libraries/ghc-internal/src/GHC/Internal/System/IO/OS.hs - libraries/ghc-internal/src/GHC/Internal/TH/Lift.hs - libraries/ghc-internal/src/GHC/Internal/TypeError.hs - utils/haddock/doc/.gitignore - utils/haddock/doc/Makefile - + utils/haddock/doc/_static/haddock-custom.css - utils/haddock/doc/conf.py - utils/haddock/doc/markup.rst - + utils/haddock/doc/snippets/.gitignore - + utils/haddock/doc/snippets/Lists.hs - + utils/haddock/doc/snippets/Makefile - + utils/haddock/doc/snippets/Snippet-List-Bulleted.html - + utils/haddock/doc/snippets/Snippet-List-Bulleted.tex - + utils/haddock/doc/snippets/Snippet-List-Definition.html - + utils/haddock/doc/snippets/Snippet-List-Definition.tex - + utils/haddock/doc/snippets/Snippet-List-Enumerated.html - + utils/haddock/doc/snippets/Snippet-List-Enumerated.tex - + utils/haddock/doc/snippets/Snippet-List-Indentation.html - + utils/haddock/doc/snippets/Snippet-List-Indentation.tex - + utils/haddock/doc/snippets/Snippet-List-Multiline-Item.html - + utils/haddock/doc/snippets/Snippet-List-Multiline-Item.tex - + utils/haddock/doc/snippets/Snippet-List-Nested-Item.html - + utils/haddock/doc/snippets/Snippet-List-Nested-Item.tex - + utils/haddock/doc/snippets/Snippet-List-Not-Newline.html - + utils/haddock/doc/snippets/Snippet-List-Not-Newline.tex - + utils/haddock/doc/snippets/Snippet-List-Not-Separated.html - + utils/haddock/doc/snippets/Snippet-List-Not-Separated.tex - utils/haddock/html-test/ref/A.html - utils/haddock/html-test/ref/Bug1004.html - utils/haddock/html-test/ref/Bug1033.html - utils/haddock/html-test/ref/Bug1103.html - utils/haddock/html-test/ref/Bug548.html - utils/haddock/html-test/ref/Bug923.html - utils/haddock/html-test/ref/ConstructorPatternExport.html - utils/haddock/html-test/ref/FunArgs.html - utils/haddock/html-test/ref/Hash.html - utils/haddock/html-test/ref/Instances.html - utils/haddock/html-test/ref/LinearTypes.html - utils/haddock/html-test/ref/RedactTypeSynonyms.html - utils/haddock/html-test/ref/T23616.html - utils/haddock/html-test/ref/Test.html - utils/haddock/html-test/ref/TypeFamilies3.html The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/4a2d77c52ee4c2d2c57a3e8aa39a85… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/4a2d77c52ee4c2d2c57a3e8aa39a85… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/T26930] Float up generics
by Teo Camarasu (＠teo) 17 Feb '26

17 Feb '26

Teo Camarasu pushed to branch wip/T26930 at Glasgow Haskell Compiler / GHC Commits: 316765d2 by Teo Camarasu at 2026-02-17T23:25:50+00:00 Float up generics - - - - - 15 changed files: - libraries/ghc-internal/src/GHC/Internal/ByteOrder.hs - − libraries/ghc-internal/src/GHC/Internal/ByteOrder.hs-boot - libraries/ghc-internal/src/GHC/Internal/Control/Arrow.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/Fix.hs - libraries/ghc-internal/src/GHC/Internal/Data/Foldable.hs - libraries/ghc-internal/src/GHC/Internal/Data/Functor/Const.hs - libraries/ghc-internal/src/GHC/Internal/Data/Functor/Identity.hs - libraries/ghc-internal/src/GHC/Internal/Data/Monoid.hs - libraries/ghc-internal/src/GHC/Internal/Data/Semigroup/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Data/Traversable.hs - libraries/ghc-internal/src/GHC/Internal/Functor/ZipList.hs - libraries/ghc-internal/src/GHC/Internal/Generics.hs - libraries/ghc-internal/src/GHC/Internal/IO/Exception.hs - libraries/ghc-internal/src/GHC/Internal/Read.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Bits.hs Changes: ===================================== libraries/ghc-internal/src/GHC/Internal/ByteOrder.hs ===================================== @@ -27,8 +27,6 @@ module GHC.Internal.ByteOrder import GHC.Internal.Base import GHC.Internal.Enum -import GHC.Internal.Generics (Generic) -import GHC.Internal.Text.Read import GHC.Internal.Text.Show -- | Byte ordering. @@ -39,9 +37,7 @@ data ByteOrder , Ord -- ^ @since base-4.11.0.0 , Bounded -- ^ @since base-4.11.0.0 , Enum -- ^ @since base-4.11.0.0 - , Read -- ^ @since base-4.11.0.0 , Show -- ^ @since base-4.11.0.0 - , Generic -- ^ @since base-4.15.0.0 ) -- | The byte ordering of the target machine. ===================================== libraries/ghc-internal/src/GHC/Internal/ByteOrder.hs-boot deleted ===================================== @@ -1,29 +0,0 @@ -{-# LANGUAGE NoImplicitPrelude #-} - -{- -This SOURCE-imported hs-boot module cuts a big dependency loop: - -module ‘GHC.Stable’ -imports module ‘GHC.Ptr’ -imports module ‘Numeric’ -imports module ‘GHC.Read’ -imports module ‘GHC.Unicode’ -imports module ‘GHC.Unicode.Internal.Char.UnicodeData.GeneralCategory’ -imports module ‘GHC.Unicode.Internal.Bits’ -imports module ‘GHC.ByteOrder’ -imports module ‘GHC.Generics’ -imports module ‘Data.Ord’ -imports module ‘Foreign.Storable’ -imports module ‘GHC.Stable’ --} - -module GHC.Internal.ByteOrder where - --- See W1 of Note [Tracking dependencies on primitives] in GHC.Internal.Base -import GHC.Internal.Types () - -data ByteOrder - = BigEndian - | LittleEndian - -targetByteOrder :: ByteOrder ===================================== libraries/ghc-internal/src/GHC/Internal/Control/Arrow.hs ===================================== @@ -51,7 +51,7 @@ import GHC.Internal.Data.Tuple ( uncurry ) import GHC.Internal.Data.Either import GHC.Internal.Control.Category import GHC.Internal.Base hiding ( (.), id ) -import GHC.Internal.Generics (Generic, Generic1) +import GHC.Internal.Generics infixr 5 <+> infixr 3 *** @@ -179,12 +179,6 @@ instance Arrow (->) where -- | Kleisli arrows of a monad. newtype Kleisli m a b = Kleisli { runKleisli :: a -> m b } --- | @since base-4.14.0.0 -deriving instance Generic (Kleisli m a b) - --- | @since base-4.14.0.0 -deriving instance Generic1 (Kleisli m a) - -- | @since base-4.14.0.0 deriving instance Functor m => Functor (Kleisli m a) @@ -416,3 +410,8 @@ leftApp :: ArrowApply a => a b c -> a (Either b d) (Either c d) leftApp f = arr ((\b -> (arr (\() -> b) >>> f >>> arr Left, ())) ||| (\d -> (arr (\() -> d) >>> arr Right, ()))) >>> app +-- | @since base-4.14.0.0 +deriving instance Generic (Kleisli m a b) + +-- | @since base-4.14.0.0 +deriving instance Generic1 (Kleisli m a) ===================================== libraries/ghc-internal/src/GHC/Internal/Control/Monad/Fix.hs ===================================== @@ -39,7 +39,6 @@ import GHC.Internal.Data.NonEmpty ( NonEmpty(..) ) import GHC.Internal.Data.Ord ( Down(..) ) import GHC.Internal.Data.Tuple ( Solo(..), fst, snd ) import GHC.Internal.Base ( IO, Monad, errorWithoutStackTrace, (.), return, liftM ) -import GHC.Internal.Generics import GHC.Internal.List ( head, drop ) import GHC.Internal.Control.Monad.ST.Imp import qualified GHC.Internal.Control.Monad.ST.Lazy.Imp as Lazy @@ -240,26 +239,6 @@ instance MonadFix f => MonadFix (Alt f) where instance MonadFix f => MonadFix (Ap f) where mfix f = Ap (mfix (getAp . f)) --- Instances for GHC.Generics --- | @since base-4.9.0.0 -instance MonadFix Par1 where - mfix f = Par1 (fix (unPar1 . f)) - --- | @since base-4.9.0.0 -instance MonadFix f => MonadFix (Rec1 f) where - mfix f = Rec1 (mfix (unRec1 . f)) - --- | @since base-4.9.0.0 -instance MonadFix f => MonadFix (M1 i c f) where - mfix f = M1 (mfix (unM1. f)) - --- | @since base-4.9.0.0 -instance (MonadFix f, MonadFix g) => MonadFix (f :*: g) where - mfix f = (mfix (fstP . f)) :*: (mfix (sndP . f)) - where - fstP (a :*: _) = a - sndP (_ :*: b) = b - -- Instances for Data.Ord -- | @since base-4.12.0.0 ===================================== libraries/ghc-internal/src/GHC/Internal/Data/Foldable.hs ===================================== @@ -65,7 +65,6 @@ import GHC.Internal.Arr ( Array(..), elems, numElements, foldlElems', foldrElems', foldl1Elems, foldr1Elems) import GHC.Internal.Base hiding ( foldr ) -import GHC.Internal.Generics import GHC.Internal.Tuple (Solo (..)) import GHC.Internal.Num ( Num(..) ) @@ -860,67 +859,6 @@ instance (Foldable f) => Foldable (Alt f) where instance (Foldable f) => Foldable (Ap f) where foldMap f = foldMap f . getAp --- Instances for GHC.Generics --- | @since base-4.9.0.0 -instance Foldable U1 where - foldMap _ _ = mempty - {-# INLINE foldMap #-} - fold _ = mempty - {-# INLINE fold #-} - foldr _ z _ = z - {-# INLINE foldr #-} - foldl _ z _ = z - {-# INLINE foldl #-} - foldl1 _ _ = errorWithoutStackTrace "foldl1: U1" - foldr1 _ _ = errorWithoutStackTrace "foldr1: U1" - length _ = 0 - null _ = True - elem _ _ = False - sum _ = 0 - product _ = 1 - --- | @since base-4.9.0.0 -deriving instance Foldable V1 - --- | @since base-4.9.0.0 -deriving instance Foldable Par1 - --- | @since base-4.9.0.0 -deriving instance Foldable f => Foldable (Rec1 f) - --- | @since base-4.9.0.0 -deriving instance Foldable (K1 i c) - --- | @since base-4.9.0.0 -deriving instance Foldable f => Foldable (M1 i c f) - --- | @since base-4.9.0.0 -deriving instance (Foldable f, Foldable g) => Foldable (f :+: g) - --- | @since base-4.9.0.0 -deriving instance (Foldable f, Foldable g) => Foldable (f :*: g) - --- | @since base-4.9.0.0 -deriving instance (Foldable f, Foldable g) => Foldable (f :.: g) - --- | @since base-4.9.0.0 -deriving instance Foldable UAddr - --- | @since base-4.9.0.0 -deriving instance Foldable UChar - --- | @since base-4.9.0.0 -deriving instance Foldable UDouble - --- | @since base-4.9.0.0 -deriving instance Foldable UFloat - --- | @since base-4.9.0.0 -deriving instance Foldable UInt - --- | @since base-4.9.0.0 -deriving instance Foldable UWord - -- Instances for Data.Ord -- | @since base-4.12.0.0 deriving instance Foldable Down ===================================== libraries/ghc-internal/src/GHC/Internal/Data/Functor/Const.hs ===================================== @@ -29,7 +29,6 @@ import GHC.Internal.Ix (Ix) import GHC.Internal.Base import GHC.Internal.Enum (Bounded, Enum) import GHC.Internal.Float (Floating, RealFloat) -import GHC.Internal.Generics (Generic, Generic1) import GHC.Internal.Num (Num) import GHC.Internal.Real (Fractional, Integral, Real, RealFrac) import GHC.Internal.Read (Read(readsPrec), readParen, lex) @@ -57,8 +56,6 @@ newtype Const a b = Const { getConst :: a } , FiniteBits -- ^ @since base-4.9.0.0 , Floating -- ^ @since base-4.9.0.0 , Fractional -- ^ @since base-4.9.0.0 - , Generic -- ^ @since base-4.9.0.0 - , Generic1 -- ^ @since base-4.9.0.0 , Integral -- ^ @since base-4.9.0.0 , Ix -- ^ @since base-4.9.0.0 , Semigroup -- ^ @since base-4.9.0.0 ===================================== libraries/ghc-internal/src/GHC/Internal/Data/Functor/Identity.hs ===================================== @@ -43,7 +43,6 @@ import GHC.Internal.Base ( Applicative(..), Eq(..), Functor(..), Monad(..) , Semigroup, Monoid, Ord(..), ($), (.) ) import GHC.Internal.Enum (Bounded, Enum) import GHC.Internal.Float (Floating, RealFloat) -import GHC.Internal.Generics (Generic, Generic1) import GHC.Internal.Num (Num) import GHC.Internal.Read (Read(..), lex, readParen) import GHC.Internal.Real (Fractional, Integral, Real, RealFrac) @@ -77,8 +76,6 @@ newtype Identity a = Identity { runIdentity :: a } , FiniteBits -- ^ @since base-4.9.0.0 , Floating -- ^ @since base-4.9.0.0 , Fractional -- ^ @since base-4.9.0.0 - , Generic -- ^ @since base-4.8.0.0 - , Generic1 -- ^ @since base-4.8.0.0 , Integral -- ^ @since base-4.9.0.0 , Ix -- ^ @since base-4.9.0.0 , Semigroup -- ^ @since base-4.9.0.0 ===================================== libraries/ghc-internal/src/GHC/Internal/Data/Monoid.hs ===================================== @@ -1,4 +1,3 @@ -{-# LANGUAGE DeriveGeneric #-} {-# LANGUAGE GeneralizedNewtypeDeriving #-} {-# LANGUAGE NoImplicitPrelude #-} {-# LANGUAGE PolyKinds #-} @@ -85,7 +84,6 @@ module GHC.Internal.Data.Monoid ( -- Push down the module in the dependency hierarchy. import GHC.Internal.Base hiding (Any) import GHC.Internal.Enum -import GHC.Internal.Generics import GHC.Internal.Num import GHC.Internal.Read import GHC.Internal.Show @@ -148,8 +146,6 @@ newtype First a = First { getFirst :: Maybe a } , Ord -- ^ @since base-2.01 , Read -- ^ @since base-2.01 , Show -- ^ @since base-2.01 - , Generic -- ^ @since base-4.7.0.0 - , Generic1 -- ^ @since base-4.7.0.0 , Functor -- ^ @since base-4.8.0.0 , Applicative -- ^ @since base-4.8.0.0 , Monad -- ^ @since base-4.8.0.0 @@ -190,8 +186,6 @@ newtype Last a = Last { getLast :: Maybe a } , Ord -- ^ @since base-2.01 , Read -- ^ @since base-2.01 , Show -- ^ @since base-2.01 - , Generic -- ^ @since base-4.7.0.0 - , Generic1 -- ^ @since base-4.7.0.0 , Functor -- ^ @since base-4.8.0.0 , Applicative -- ^ @since base-4.8.0.0 , Monad -- ^ @since base-4.8.0.0 @@ -225,8 +219,6 @@ newtype Ap f a = Ap { getAp :: f a } , Enum -- ^ @since base-4.12.0.0 , Eq -- ^ @since base-4.12.0.0 , Functor -- ^ @since base-4.12.0.0 - , Generic -- ^ @since base-4.12.0.0 - , Generic1 -- ^ @since base-4.12.0.0 , Monad -- ^ @since base-4.12.0.0 , MonadFail -- ^ @since base-4.12.0.0 , MonadPlus -- ^ @since base-4.12.0.0 ===================================== libraries/ghc-internal/src/GHC/Internal/Data/Semigroup/Internal.hs ===================================== @@ -1,6 +1,5 @@ {-# LANGUAGE NoImplicitPrelude #-} {-# LANGUAGE BangPatterns #-} -{-# LANGUAGE DeriveGeneric #-} {-# LANGUAGE GeneralizedNewtypeDeriving #-} {-# LANGUAGE PolyKinds #-} {-# LANGUAGE ScopedTypeVariables #-} @@ -26,7 +25,6 @@ import qualified GHC.Internal.List as List import GHC.Internal.Num import GHC.Internal.Read import GHC.Internal.Show -import GHC.Internal.Generics import GHC.Internal.Real -- | This is a valid definition of 'stimes' for an idempotent 'Semigroup'. @@ -90,8 +88,6 @@ newtype Dual a = Dual { getDual :: a } , Read -- ^ @since base-2.01 , Show -- ^ @since base-2.01 , Bounded -- ^ @since base-2.01 - , Generic -- ^ @since base-4.7.0.0 - , Generic1 -- ^ @since base-4.7.0.0 ) -- | @since base-4.9.0.0 @@ -130,8 +126,6 @@ instance Monad Dual where -- >>> appEndo computation 1 -- 6 newtype Endo a = Endo { appEndo :: a -> a } - deriving ( Generic -- ^ @since base-4.7.0.0 - ) -- | @since base-4.9.0.0 instance Semigroup (Endo a) where @@ -200,7 +194,6 @@ newtype All = All { getAll :: Bool } , Read -- ^ @since base-2.01 , Show -- ^ @since base-2.01 , Bounded -- ^ @since base-2.01 - , Generic -- ^ @since base-4.7.0.0 ) -- | @since base-4.9.0.0 @@ -232,7 +225,6 @@ newtype Any = Any { getAny :: Bool } , Read -- ^ @since base-2.01 , Show -- ^ @since base-2.01 , Bounded -- ^ @since base-2.01 - , Generic -- ^ @since base-4.7.0.0 ) -- | @since base-4.9.0.0 @@ -261,8 +253,6 @@ newtype Sum a = Sum { getSum :: a } , Read -- ^ @since base-2.01 , Show -- ^ @since base-2.01 , Bounded -- ^ @since base-2.01 - , Generic -- ^ @since base-4.7.0.0 - , Generic1 -- ^ @since base-4.7.0.0 , Num -- ^ @since base-4.7.0.0 ) @@ -309,8 +299,6 @@ newtype Product a = Product { getProduct :: a } , Read -- ^ @since base-2.01 , Show -- ^ @since base-2.01 , Bounded -- ^ @since base-2.01 - , Generic -- ^ @since base-4.7.0.0 - , Generic1 -- ^ @since base-4.7.0.0 , Num -- ^ @since base-4.7.0.0 ) @@ -355,9 +343,7 @@ instance Monad Product where -- -- @since base-4.8.0.0 newtype Alt f a = Alt {getAlt :: f a} - deriving ( Generic -- ^ @since base-4.8.0.0 - , Generic1 -- ^ @since base-4.8.0.0 - , Read -- ^ @since base-4.8.0.0 + deriving ( Read -- ^ @since base-4.8.0.0 , Show -- ^ @since base-4.8.0.0 , Eq -- ^ @since base-4.8.0.0 , Ord -- ^ @since base-4.8.0.0 ===================================== libraries/ghc-internal/src/GHC/Internal/Data/Traversable.hs ===================================== @@ -51,8 +51,7 @@ import GHC.Internal.Data.Proxy ( Proxy(..) ) import GHC.Internal.Arr import GHC.Internal.Base ( Applicative(..), Monad(..), Monoid, Maybe(..), NonEmpty(..), - ($), (.), id, flip ) -import GHC.Internal.Generics + (.), id, flip, ($) ) import qualified GHC.Internal.List as List ( foldr ) import GHC.Internal.Tuple (Solo (..)) @@ -310,60 +309,6 @@ instance (Traversable f) => Traversable (Ap f) where deriving instance Traversable Identity --- Instances for GHC.Generics --- | @since base-4.9.0.0 -instance Traversable U1 where - traverse _ _ = pure U1 - {-# INLINE traverse #-} - sequenceA _ = pure U1 - {-# INLINE sequenceA #-} - mapM _ _ = pure U1 - {-# INLINE mapM #-} - sequence _ = pure U1 - {-# INLINE sequence #-} - --- | @since base-4.9.0.0 -deriving instance Traversable V1 - --- | @since base-4.9.0.0 -deriving instance Traversable Par1 - --- | @since base-4.9.0.0 -deriving instance Traversable f => Traversable (Rec1 f) - --- | @since base-4.9.0.0 -deriving instance Traversable (K1 i c) - --- | @since base-4.9.0.0 -deriving instance Traversable f => Traversable (M1 i c f) - --- | @since base-4.9.0.0 -deriving instance (Traversable f, Traversable g) => Traversable (f :+: g) - --- | @since base-4.9.0.0 -deriving instance (Traversable f, Traversable g) => Traversable (f :*: g) - --- | @since base-4.9.0.0 -deriving instance (Traversable f, Traversable g) => Traversable (f :.: g) - --- | @since base-4.9.0.0 -deriving instance Traversable UAddr - --- | @since base-4.9.0.0 -deriving instance Traversable UChar - --- | @since base-4.9.0.0 -deriving instance Traversable UDouble - --- | @since base-4.9.0.0 -deriving instance Traversable UFloat - --- | @since base-4.9.0.0 -deriving instance Traversable UInt - --- | @since base-4.9.0.0 -deriving instance Traversable UWord - -- Instance for Data.Ord -- | @since base-4.12.0.0 deriving instance Traversable Down ===================================== libraries/ghc-internal/src/GHC/Internal/Functor/ZipList.hs ===================================== @@ -1,13 +1,11 @@ {-# LANGUAGE NoImplicitPrelude #-} {-# LANGUAGE StandaloneDeriving #-} {-# LANGUAGE DeriveFunctor #-} -{-# LANGUAGE DeriveGeneric #-} {-# LANGUAGE DeriveFoldable #-} module GHC.Internal.Functor.ZipList (ZipList(..)) where import GHC.Internal.Base -import GHC.Internal.Generics import GHC.Internal.List (repeat, zipWith) import GHC.Internal.Read (Read) import GHC.Internal.Show (Show) @@ -41,8 +39,6 @@ newtype ZipList a = ZipList { getZipList :: [a] } , Read -- ^ @since base-4.7.0.0 , Functor -- ^ @since base-2.01 , Foldable -- ^ @since base-4.9.0.0 - , Generic -- ^ @since base-4.7.0.0 - , Generic1 -- ^ @since base-4.7.0.0 ) ===================================== libraries/ghc-internal/src/GHC/Internal/Generics.hs ===================================== @@ -3,7 +3,9 @@ {-# LANGUAGE CPP #-} {-# LANGUAGE DataKinds #-} {-# LANGUAGE DeriveFunctor #-} +{-# LANGUAGE DeriveFoldable #-} {-# LANGUAGE DeriveGeneric #-} +{-# LANGUAGE DeriveTraversable #-} {-# LANGUAGE EmptyDataDeriving #-} {-# LANGUAGE FlexibleContexts #-} {-# LANGUAGE FlexibleInstances #-} @@ -736,13 +738,13 @@ import GHC.Internal.Data.Ord ( Down(..) ) import GHC.Internal.Bignum.Integer ( Integer, integerToInt ) import GHC.Internal.Prim ( Addr#, Char#, Double#, Float#, Int#, Word# ) import GHC.Internal.Ptr ( Ptr(..) ) -import GHC.Internal.Types +import GHC.Internal.Types hiding (Any) -- clashes with the Semigroup -- Needed for instances import GHC.Internal.Ix ( Ix ) import GHC.Internal.Base ( Alternative(..), Applicative(..), Functor(..) , Monad(..), MonadPlus(..), NonEmpty(..), String, coerce - , Semigroup(..), Monoid(..), Void ) + , Semigroup(..), Void, errorWithoutStackTrace, liftM2 ) import GHC.Internal.Classes ( Eq(..), Ord(..) ) import GHC.Internal.Enum ( Bounded, Enum ) import GHC.Internal.Read ( Read(..) ) @@ -751,6 +753,15 @@ import GHC.Internal.Stack.Types ( SrcLoc(..) ) import GHC.Internal.Tuple (Solo (..)) import GHC.Internal.Unicode ( GeneralCategory(..) ) import GHC.Internal.Fingerprint.Type ( Fingerprint(..) ) +import GHC.Internal.Data.Semigroup.Internal +import GHC.Internal.Data.Monoid +import GHC.Internal.Data.Foldable +import GHC.Internal.Data.Traversable +import GHC.Internal.Data.Functor.Const +import GHC.Internal.Data.Functor.Identity +import GHC.Internal.Functor.ZipList +import GHC.Internal.IO.Exception ( ExitCode(..) ) +import GHC.Internal.ByteOrder ( ByteOrder(..) ) -- Needed for metadata import GHC.Internal.Data.Proxy ( Proxy(..) ) @@ -1879,3 +1890,191 @@ instance SingKind DecidedStrictness where fromSing SDecidedLazy = DecidedLazy fromSing SDecidedStrict = DecidedStrict fromSing SDecidedUnpack = DecidedUnpack + +-- | @since base-4.7.0.0 +deriving instance Generic (Dual a) + +-- | @since base-4.7.0.0 +deriving instance Generic1 Dual + +-- | @since base-4.7.0.0 +deriving instance Generic (Endo a) + +-- | @since base-4.7.0.0 +deriving instance Generic All + +-- | @since base-4.7.0.0 +deriving instance Generic Any + +-- | @since base-4.7.0.0 +deriving instance Generic (Sum a) + +-- | @since base-4.7.0.0 +deriving instance Generic1 Sum + +-- | @since base-4.7.0.0 +deriving instance Generic (Product a) + +-- | @since base-4.7.0.0 +deriving instance Generic1 Product + +-- | @since base-4.8.0.0 +deriving instance Generic (Alt f a) + +-- | @since base-4.8.0.0 +deriving instance Generic1 (Alt f) + +-- | @since base-4.7.0.0 +deriving instance Generic (First a) + +-- | @since base-4.7.0.0 +deriving instance Generic1 First + +-- | @since base-4.7.0.0 +deriving instance Generic (Last a) + +-- | @since base-4.7.0.0 +deriving instance Generic1 Last + +-- | @since base-4.12.0.0 +deriving instance Generic (Ap f a) + +-- | @since base-4.12.0.0 +deriving instance Generic1 (Ap f) + +-- | @since base-4.9.0.0 +instance Foldable U1 where + foldMap _ _ = mempty + {-# INLINE foldMap #-} + fold _ = mempty + {-# INLINE fold #-} + foldr _ z _ = z + {-# INLINE foldr #-} + foldl _ z _ = z + {-# INLINE foldl #-} + foldl1 _ _ = errorWithoutStackTrace "foldl1: U1" + foldr1 _ _ = errorWithoutStackTrace "foldr1: U1" + length _ = 0 + null _ = True + elem _ _ = False + sum _ = 0 + product _ = 1 + +-- | @since base-4.9.0.0 +deriving instance Foldable V1 + +-- | @since base-4.9.0.0 +deriving instance Foldable Par1 + +-- | @since base-4.9.0.0 +deriving instance Foldable f => Foldable (Rec1 f) + +-- | @since base-4.9.0.0 +deriving instance Foldable (K1 i c) + +-- | @since base-4.9.0.0 +deriving instance Foldable f => Foldable (M1 i c f) + +-- | @since base-4.9.0.0 +deriving instance (Foldable f, Foldable g) => Foldable (f :+: g) + +-- | @since base-4.9.0.0 +deriving instance (Foldable f, Foldable g) => Foldable (f :*: g) + +-- | @since base-4.9.0.0 +deriving instance (Foldable f, Foldable g) => Foldable (f :.: g) + +-- | @since base-4.9.0.0 +deriving instance Foldable UAddr + +-- | @since base-4.9.0.0 +deriving instance Foldable UChar + +-- | @since base-4.9.0.0 +deriving instance Foldable UDouble + +-- | @since base-4.9.0.0 +deriving instance Foldable UFloat + +-- | @since base-4.9.0.0 +deriving instance Foldable UInt + +-- | @since base-4.9.0.0 +deriving instance Foldable UWord + +-- | @since base-4.9.0.0 +instance Traversable U1 where + traverse _ _ = pure U1 + {-# INLINE traverse #-} + sequenceA _ = pure U1 + {-# INLINE sequenceA #-} + mapM _ _ = pure U1 + {-# INLINE mapM #-} + sequence _ = pure U1 + {-# INLINE sequence #-} + +-- | @since base-4.9.0.0 +deriving instance Traversable V1 + +-- | @since base-4.9.0.0 +deriving instance Traversable Par1 + +-- | @since base-4.9.0.0 +deriving instance Traversable f => Traversable (Rec1 f) + +-- | @since base-4.9.0.0 +deriving instance Traversable (K1 i c) + +-- | @since base-4.9.0.0 +deriving instance Traversable f => Traversable (M1 i c f) + +-- | @since base-4.9.0.0 +deriving instance (Traversable f, Traversable g) => Traversable (f :+: g) + +-- | @since base-4.9.0.0 +deriving instance (Traversable f, Traversable g) => Traversable (f :*: g) + +-- | @since base-4.9.0.0 +deriving instance (Traversable f, Traversable g) => Traversable (f :.: g) + +-- | @since base-4.9.0.0 +deriving instance Traversable UAddr + +-- | @since base-4.9.0.0 +deriving instance Traversable UChar + +-- | @since base-4.9.0.0 +deriving instance Traversable UDouble + +-- | @since base-4.9.0.0 +deriving instance Traversable UFloat + +-- | @since base-4.9.0.0 +deriving instance Traversable UInt + +-- | @since base-4.9.0.0 +deriving instance Traversable UWord + +-- | @since base-4.9.0.0 +deriving instance Generic (Const a b) + +-- | @since base-4.9.0.0 +deriving instance Generic1 (Const a) + +-- | @since base-4.8.0.0 +deriving instance Generic (Identity a) + +-- | @since base-4.8.0.0 +deriving instance Generic1 Identity + +-- | @since base-4.7.0.0 +deriving instance Generic (ZipList a) + +-- | @since base-4.7.0.0 +deriving instance Generic1 ZipList + +-- TODO: since when?? +deriving instance Generic ExitCode + +-- | @since base-4.15.0.0 +deriving instance Generic ByteOrder ===================================== libraries/ghc-internal/src/GHC/Internal/IO/Exception.hs ===================================== @@ -1,5 +1,5 @@ {-# LANGUAGE Trustworthy #-} -{-# LANGUAGE DeriveGeneric, NoImplicitPrelude, MagicHash, +{-# LANGUAGE NoImplicitPrelude, MagicHash, ExistentialQuantification, ImplicitParams #-} {-# OPTIONS_GHC -funbox-strict-fields #-} {-# OPTIONS_HADDOCK not-home #-} @@ -52,7 +52,6 @@ module GHC.Internal.IO.Exception ( ) where import GHC.Internal.Base -import GHC.Internal.Generics import GHC.Internal.List import GHC.Internal.IO import GHC.Internal.Show @@ -306,7 +305,7 @@ data ExitCode -- The exact interpretation of the code is -- operating-system dependent. In particular, some values -- may be prohibited (e.g. 0 on a POSIX-compliant system). - deriving (Eq, Ord, Read, Show, Generic) + deriving (Eq, Ord, Read, Show) -- | @since base-4.1.0.0 instance Exception ExitCode ===================================== libraries/ghc-internal/src/GHC/Internal/Read.hs ===================================== @@ -74,6 +74,7 @@ import GHC.Internal.Arr import GHC.Internal.Word import GHC.Internal.List (filter) import GHC.Internal.Tuple (Solo (..)) +import GHC.Internal.ByteOrder -- | @'readParen' 'True' p@ parses what @p@ parses, but surrounded with @@ -833,3 +834,6 @@ instance (Read a, Read b, Read c, Read d, Read e, Read f, Read g, Read h, ; return (a,b,c,d,e,f,g,h,i,j,k,l,m,n,o) }) readListPrec = readListPrecDefault readList = readListDefault + +-- | @since base-4.11.0.0 +deriving instance Read ByteOrder ===================================== libraries/ghc-internal/src/GHC/Internal/Unicode/Bits.hs ===================================== @@ -31,7 +31,7 @@ module GHC.Internal.Unicode.Bits where import GHC.Internal.Bits (finiteBitSize, popCount) -import {-# SOURCE #-} GHC.Internal.ByteOrder +import GHC.Internal.ByteOrder import GHC.Internal.Prim import GHC.Internal.ST import GHC.Internal.Base View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/316765d2128789be4ad1042d0214c8d… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/316765d2128789be4ad1042d0214c8d… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 5 commits: configure: Accept happy-2.2
by Marge Bot (＠marge-bot) 17 Feb '26

17 Feb '26

Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC Commits: 4f2840f2 by Brian J. Cardiff at 2026-02-17T17:04:08-05:00 configure: Accept happy-2.2 In Jan 2026 happy-2.2 was released. The most sensible change is https://github.com/haskell/happy/issues/335 which didn't trigger in a fresh build - - - - - 10b4d364 by Duncan Coutts at 2026-02-17T17:04:52-05:00 Fix errors in the documentation of the eventlog STOP_THREAD status codes Fix the code for BlockedOnMsgThrowTo. Document all the known historical warts. Fixes issue #26867 - - - - - 1617b10c by Phil de Joux at 2026-02-17T17:36:29-05:00 haddock: use snippets for all list examples - generate snippet output for docs - reduce font size to better fit snippets - Use only directive to guard html snippets - Add latex snippets for lists - - - - - 2ac7b715 by Phil de Joux at 2026-02-17T17:36:29-05:00 haddock: Place the snippet input and output together - Put the output seemingly inside the example box - - - - - 4a2d77c5 by Samuel Thibault at 2026-02-17T17:36:42-05:00 Fix linking against libm by moving the -lm option For those systems that need -lm for getting math functions, this is currently added on the link line very early, before the object files being linked together. Newer toolchains enable --as-needed by default, which means -lm is ignored at that point because no object requires a math function yet. With such toolchains, we thus have to add -lm after the objects, so the linker actually includes libm in the link. - - - - - 27 changed files: - compiler/GHC/Linker/Dynamic.hs - docs/users_guide/eventlog-formats.rst - m4/fptools_happy.m4 - utils/haddock/doc/.gitignore - utils/haddock/doc/Makefile - + utils/haddock/doc/_static/haddock-custom.css - utils/haddock/doc/conf.py - utils/haddock/doc/markup.rst - + utils/haddock/doc/snippets/.gitignore - + utils/haddock/doc/snippets/Lists.hs - + utils/haddock/doc/snippets/Makefile - + utils/haddock/doc/snippets/Snippet-List-Bulleted.html - + utils/haddock/doc/snippets/Snippet-List-Bulleted.tex - + utils/haddock/doc/snippets/Snippet-List-Definition.html - + utils/haddock/doc/snippets/Snippet-List-Definition.tex - + utils/haddock/doc/snippets/Snippet-List-Enumerated.html - + utils/haddock/doc/snippets/Snippet-List-Enumerated.tex - + utils/haddock/doc/snippets/Snippet-List-Indentation.html - + utils/haddock/doc/snippets/Snippet-List-Indentation.tex - + utils/haddock/doc/snippets/Snippet-List-Multiline-Item.html - + utils/haddock/doc/snippets/Snippet-List-Multiline-Item.tex - + utils/haddock/doc/snippets/Snippet-List-Nested-Item.html - + utils/haddock/doc/snippets/Snippet-List-Nested-Item.tex - + utils/haddock/doc/snippets/Snippet-List-Not-Newline.html - + utils/haddock/doc/snippets/Snippet-List-Not-Newline.tex - + utils/haddock/doc/snippets/Snippet-List-Not-Separated.html - + utils/haddock/doc/snippets/Snippet-List-Not-Separated.tex Changes: ===================================== compiler/GHC/Linker/Dynamic.hs ===================================== @@ -227,7 +227,6 @@ linkDynLib logger tmpfs dflags0 unit_env o_files dep_packages runLink logger tmpfs linker_config ( map Option verbFlags - ++ libmLinkOpts platform ++ [ Option "-o" , FileOption "" output_fn ] @@ -260,6 +259,7 @@ linkDynLib logger tmpfs dflags0 unit_env o_files dep_packages -- driver is a more pragmatic solution. ++ [ Option "-Wl,--Bsymbolic,--experimental-pic,--unresolved-symbols=import-dynamic" | arch == ArchWasm32 ] ++ extra_ld_inputs + ++ libmLinkOpts platform ++ map Option lib_path_opts ++ map Option pkg_lib_path_opts ++ map Option pkg_link_opts ===================================== docs/users_guide/eventlog-formats.rst ===================================== @@ -221,14 +221,41 @@ Thread and scheduling events * 11: BlockedOnDelay * 12: BlockedOnSTM * 13: BlockedOnDoProc - * 16: BlockedOnMsgThrowTo + * 14--17: unused + * 18: BlockedOnMsgThrowTo + * 19: unused * 20: BlockedOnMVarRead :field ThreadId: thread id of thread being blocked on (only for some status values) The indicated thread has stopped running for the reason given by ``status``. - + + Historically, the GHC-internal status codes for the reasons why threads are + blocked were used more-or-less directly as the status codes emitted into the + eventlog. This is now recognised as a mistake and the GHC internal codes and + these eventlog stop thread codes are now independent. We are nevertheless + left with some historical warts: + + * 14,15: these correspond to GHC internal status codes `BlockedOnGA` and + `BlockedOnGA_NoSend` that are no longer used (and may never have been + used by any released version of GHC). + * 16,17: these would be used by `BlockedOnCCall` and + `BlockedOnCCall_Interruptible` which are GHC-internal status codes, but + these are never and have never been emitted into the eventlog. This has + caused confusion, and many versions of the `ghc-events` package support + these status codes. Threads blocking on foreign calls use `ForeignCall` + above. + * 19: this would be used by `ThreadMigrating` which is a GHC-internal + status code, but this is never emitted into the eventlog. Threads + migrating use a separate event `MIGRATE_THREAD`. + * `BlockedOnMsgGlobalise`: this is supported by versions of `ghc-events` as + code 18, but it appears never to have been emitted by any released version + of GHC. Most likely it was related to the local-heap GC experiment that + was never released. + + Errata: previous versions of this document stated that code 16 is + `BlockedOnMsgThrowTo`. It appears this was always incorrect. .. event-type:: MIGRATE_THREAD ===================================== m4/fptools_happy.m4 ===================================== @@ -28,13 +28,13 @@ then else fptools_cv_happy_version_display="none"; fi; - failure_msg="Happy version == 1.20.* || >= 2.0.2 && < 2.2 is required to compile GHC. (Found: $fptools_cv_happy_version_display)" + failure_msg="Happy version == 1.20.* || >= 2.0.2 && < 2.3 is required to compile GHC. (Found: $fptools_cv_happy_version_display)" FP_COMPARE_VERSIONS([$fptools_cv_happy_version],[-lt],[1.20.0], [AC_MSG_ERROR([$failure_msg])])[] FP_COMPARE_VERSIONS([$fptools_cv_happy_version],[-ge],[1.21.0], FP_COMPARE_VERSIONS([$fptools_cv_happy_version], [-le], [2.0.1], [AC_MSG_ERROR([$failure_msg])])[])[] - FP_COMPARE_VERSIONS([$fptools_cv_happy_version],[-ge],[2.2.0], + FP_COMPARE_VERSIONS([$fptools_cv_happy_version],[-ge],[2.3.0], [AC_MSG_ERROR([$failure_msg])])[] fi HappyVersion=$fptools_cv_happy_version; ===================================== utils/haddock/doc/.gitignore ===================================== @@ -1 +1,3 @@ -.build-html \ No newline at end of file +.build-html +.build-latex +!_static ===================================== utils/haddock/doc/Makefile ===================================== @@ -1,8 +1,13 @@ SPHINX_BUILD ?= sphinx-build -all : html +all : html pdf .PHONY : html +.PHONY : pdf html : $(SPHINX_BUILD) -b html . .build-html + +pdf : + $(SPHINX_BUILD) -b latex . .build-latex + cd .build-latex && make ===================================== utils/haddock/doc/_static/haddock-custom.css ===================================== @@ -0,0 +1,19 @@ +.result.admonition { + border: solid 3px #eee; + border-top: none; + background-color: transparent; + padding: 1px 0px 10px 10px; + margin: 0px 0px -20px 0px; + position: relative; + top: -18px; +} + +.result.admonition p.admonition-title{ + position: absolute; + visibility: hidden; +} + +/* Use a small font size for code blocks so that they don't overflow. */ +pre { + font-size: 0.8em; +} ===================================== utils/haddock/doc/conf.py ===================================== @@ -31,6 +31,12 @@ pygments_style = 'tango' htmlhelp_basename = 'Haddockdoc' +html_static_path = ['_static'] + +html_css_files = [ + 'haddock-custom.css', +] + # -- Options for LaTeX output --------------------------------------------- ===================================== utils/haddock/doc/markup.rst ===================================== @@ -1004,99 +1004,162 @@ Itemized and Enumerated Lists A bulleted item is represented by preceding a paragraph with either “``*``” or “``-``”. A sequence of bulleted paragraphs is rendered as an -itemized list in the generated documentation, e.g.: :: +itemized list in the generated documentation, e.g. - -- | This is a bulleted list: - -- - -- * first item - -- - -- * second item +.. literalinclude:: snippets/Lists.hs + :lines: 3-7 + +.. admonition:: Result + :class: result + + .. only:: html + + .. raw:: html + :file: snippets/Snippet-List-Bulleted.html + + .. only:: latex + + .. raw:: latex + :file: snippets/Snippet-List-Bulleted.tex + +.. warning:: + + Separate lists from any preceding markup with at least one blank line + otherwise the list and its items will be rendered with the preceding + content. + +.. literalinclude:: snippets/Lists.hs + :lines: 10-12 + +.. admonition:: Result + :class: result + + .. only:: html + + .. raw:: html + :file: snippets/Snippet-List-Not-Separated.html + + .. only:: latex + + .. raw:: latex + :file: snippets/Snippet-List-Not-Separated.tex An enumerated list is similar, except each paragraph must be preceded by -either “``(n)``” or “``n.``” where n is any integer. e.g. :: +either “``(n)``” or “``n.``” where n is any integer. e.g. - -- | This is an enumerated list: - -- - -- (1) first item - -- - -- 2. second item +.. literalinclude:: snippets/Lists.hs + :lines: 15-19 -Lists of the same type don't have to be separated by a newline: :: +.. admonition:: Result + :class: result - -- | This is an enumerated list: - -- - -- (1) first item - -- 2. second item - -- - -- This is a bulleted list: - -- - -- * first item - -- * second item + .. only:: html -You can have more than one line of content in a list element: :: + .. raw:: html + :file: snippets/Snippet-List-Enumerated.html - -- | - -- * first item - -- and more content for the first item - -- * second item - -- and more content for the second item + .. only:: latex + + .. raw:: latex + :file: snippets/Snippet-List-Enumerated.tex + +Lists of the same type don't have to be separated by a newline: + +.. literalinclude:: snippets/Lists.hs + :lines: 22-30 + +.. admonition:: Result + :class: result + + .. only:: html + + .. raw:: html + :file: snippets/Snippet-List-Not-Newline.html + + .. only:: latex + + .. raw:: latex + :file: snippets/Snippet-List-Not-Newline.tex + +You can have more than one line of content in a list element: + +.. literalinclude:: snippets/Lists.hs + :lines: 33-37 + +.. admonition:: Result + :class: result + + .. only:: html + + .. raw:: html + :file: snippets/Snippet-List-Multiline-Item.html + + .. only:: latex + + .. raw:: latex + :file: snippets/Snippet-List-Multiline-Item.tex You can even nest whole paragraphs inside of list elements. The rules are 4 spaces for each indentation level. You're required to use a -newline before such nested paragraphs: :: - - {-| - * Beginning of list - This belongs to the list above! +newline before such nested paragraphs: - > nested - > bird - > tracks +.. literalinclude:: snippets/Lists.hs + :lines: 40-61 - * Next list - More of the indented list. +.. admonition:: Result + :class: result - * Deeper + .. only:: html - @ - even code blocks work - @ + .. raw:: html + :file: snippets/Snippet-List-Nested-Item.html - * Deeper + .. only:: latex - 1. Even deeper! - 2. No newline separation even in indented lists. - -} + .. raw:: latex + :file: snippets/Snippet-List-Nested-Item.tex The indentation of the first list item is honoured. That is, in the following example the items are on the same level. Before Haddock 2.16.1, the second item would have been nested under the first item -which was unexpected. :: +which was unexpected. - {-| - * foo +.. literalinclude:: snippets/Lists.hs + :lines: 64-68 - * bar - -} +.. admonition:: Result + :class: result + + .. only:: html + + .. raw:: html + :file: snippets/Snippet-List-Indentation.html + + .. only:: latex + + .. raw:: latex + :file: snippets/Snippet-List-Indentation.tex Definition Lists ~~~~~~~~~~~~~~~~ -Definition lists are written as follows: :: +Definition lists are written as follows: - -- | This is a definition list: - -- - -- [@foo@]: The description of @foo@. - -- - -- [@bar@]: The description of @bar@. +.. literalinclude:: snippets/Lists.hs + :lines: 71-75 + +.. admonition:: Result + :class: result + + .. only:: html -To produce output something like this: + .. raw:: html + :file: snippets/Snippet-List-Definition.html -``foo`` - The description of ``foo``. + .. only:: latex -``bar`` - The description of ``bar``. + .. raw:: latex + :file: snippets/Snippet-List-Definition.tex Each paragraph should be preceded by the “definition term” enclosed in square brackets and followed by a colon. Other markup operators may be ===================================== utils/haddock/doc/snippets/.gitignore ===================================== @@ -0,0 +1,12 @@ +*.html +*.tex +haddock-bundle.min.js +haddock.sty +linuwial.css +main.tex +meta.json +quick-jump.css +synopsis.png + +!Snippet*.html +!Snippet*.tex ===================================== utils/haddock/doc/snippets/Lists.hs ===================================== @@ -0,0 +1,76 @@ +module Lists where + +-- | This is a bulleted list: +-- +-- * first item +-- +-- * second item +data Bulleted + +-- | __Missing blank lines__ before a list: +-- * first item +-- * second item +data Before + +-- | This is an, (n) n., enumerated list: +-- +-- (1) first item +-- +-- 2. second item +data Enumerated + +-- | This is an enumerated list, with items not separated by newlines: +-- +-- (1) first item +-- 2. second item +-- +-- This is a bulleted list, with items not separated by newlines: +-- +-- * first item +-- * second item +data NotNewline + +-- | +-- * first item +-- and more content for the first item +-- * second item +-- and more content for the second item +data MultilineItem + +{-| +* Beginning of list +This belongs to the list above! + + > nested + > bird + > tracks + + * Next list + More of the indented list. + + * Deeper + + @ + even code blocks work + @ + + * Deeper + + 1. Even deeper! + 2. No newline separation even in indented lists. +-} +data NestedItem + +{-| + * foo + + * bar +-} +data Indentation + +-- | This is a definition list: +-- +-- [@foo@]: The description of @foo@. +-- +-- [@bar@]: The description of @bar@. +data DefinitionList \ No newline at end of file ===================================== utils/haddock/doc/snippets/Makefile ===================================== @@ -0,0 +1,103 @@ +# \newcommand{\haddockbegindoc}{\hfill\\[1ex]} +HDK_BEGIN := \\\\newcommand{\\haddockbegindoc}{\\hfill\\\\\[1ex]} + +# \newcommand{\haddockverb}{\small} +HDK_VERB := \\\\newcommand{\\haddockverb}{\\small} + +# \newcommand{\haddocktt}[1]{{\small \texttt{#1}}} +HDK_TT := \\\\newcommand{\\haddocktt}[1]{{\\small \\\\texttt{\#1}}} + +all: \ + Snippet-List-Bulleted.html \ + Snippet-List-Bulleted.tex \ + Snippet-List-Not-Separated.html \ + Snippet-List-Not-Separated.tex \ + Snippet-List-Enumerated.html \ + Snippet-List-Enumerated.tex \ + Snippet-List-Not-Newline.html \ + Snippet-List-Not-Newline.tex \ + Snippet-List-Multiline-Item.html \ + Snippet-List-Multiline-Item.tex \ + Snippet-List-Nested-Item.html \ + Snippet-List-Nested-Item.tex \ + Snippet-List-Indentation.html \ + Snippet-List-Indentation.tex \ + Snippet-List-Definition.html \ + Snippet-List-Definition.tex + +clean: + rm -f Lists*.html + +Lists.html: Lists.hs + haddock --html $^ + +Lists.tex: Lists.hs + haddock --latex $^ + +# Using pandoc-3.1.3 +Lists-Pretty.html: Lists.html + pandoc $^ -o $@ + +# Using tex-fmt-0.4.1 +# nix profile install github:wgunderwood/tex-fmt +Lists-Pretty.tex: Lists.tex + cp $^ $@ + tex-fmt $@ + +Snippet-List-Bulleted.html: Lists-Pretty.html + sed -n '48,52p;53q' $^ > $@ + +Snippet-List-Bulleted.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + sed -n '18,26p;27q' $^ >> $@ + +Snippet-List-Not-Separated.html: Lists-Pretty.html + sed -n '59,60p;61q' $^ > $@ + +Snippet-List-Not-Separated.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + sed -n '33,36p;37q' $^ >> $@ + +Snippet-List-Enumerated.html: Lists-Pretty.html + sed -n '68,72p;73q' $^ > $@ + +Snippet-List-Enumerated.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + sed -n '43,51p;52q' $^ >> $@ + +Snippet-List-Not-Newline.html: Lists-Pretty.html + sed -n '80,89p;90q' $^ > $@ + +Snippet-List-Not-Newline.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + sed -n '58,74p;75q' $^ >> $@ + +Snippet-List-Multiline-Item.html: Lists-Pretty.html + sed -n '97,100p;101q' $^ > $@ + +Snippet-List-Multiline-Item.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + sed -n '81,90p;91q' $^ >> $@ + +Snippet-List-Nested-Item.html: Lists-Pretty.html + sed -n '108,127p;128q' $^ > $@ + +Snippet-List-Nested-Item.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + echo "$(HDK_VERB)" >> $@ + sed -n '97,141p;142q' $^ >> $@ + +Snippet-List-Indentation.html: Lists-Pretty.html + sed -n '135,138p;139q' $^ > $@ + +Snippet-List-Indentation.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + sed -n '148,155p;156q' $^ >> $@ + +Snippet-List-Definition.html: Lists-Pretty.html + sed -n '146,156p;157q' $^ > $@ + +Snippet-List-Definition.tex: Lists-Pretty.tex + echo "$(HDK_BEGIN)" > $@ + echo "$(HDK_TT)" >> $@ + sed -n '162,170p;171q' $^ >> $@ ===================================== utils/haddock/doc/snippets/Snippet-List-Bulleted.html ===================================== @@ -0,0 +1,5 @@ +This is a bulleted list: +<ul> +<li>first item</li> +<li>second item</li> +</ul> ===================================== utils/haddock/doc/snippets/Snippet-List-Bulleted.tex ===================================== @@ -0,0 +1,10 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} + {\haddockbegindoc + This is a bulleted list:\par + \vbox{ + \begin{itemize} + \item + first item\par + \item + second item\par + \end{itemize}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Definition.html ===================================== @@ -0,0 +1,11 @@ +This is a definition list: +<dl> +<dt><code>foo</code></dt> +<dd> +The description of <code>foo</code>. +</dd> +<dt><code>bar</code></dt> +<dd> +The description of <code>bar</code>. +</dd> +</dl> ===================================== utils/haddock/doc/snippets/Snippet-List-Definition.tex ===================================== @@ -0,0 +1,11 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} +\newcommand{\haddocktt}[1]{{\small \texttt{#1}}} + {\haddockbegindoc + This is a definition list:\par + \vbox{ + \begin{description} + \item[\haddocktt{foo}]\hfill \par + The description of \haddocktt{foo}. + \item[\haddocktt{bar}]\hfill \par + The description of \haddocktt{bar}. + \end{description}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Enumerated.html ===================================== @@ -0,0 +1,5 @@ +This is an, (n) n., enumerated list: +<ol> +<li>first item</li> +<li>second item</li> +</ol> ===================================== utils/haddock/doc/snippets/Snippet-List-Enumerated.tex ===================================== @@ -0,0 +1,10 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} + {\haddockbegindoc + This is an, (n) n., enumerated list:\par + \vbox{ + \begin{enumerate} + \item + first item\par + \item + second item\par + \end{enumerate}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Indentation.html ===================================== @@ -0,0 +1,4 @@ +<ul> +<li>foo</li> +<li>bar</li> +</ul> ===================================== utils/haddock/doc/snippets/Snippet-List-Indentation.tex ===================================== @@ -0,0 +1,9 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} + {\haddockbegindoc + \vbox{ + \begin{itemize} + \item + foo\par + \item + bar\par + \end{itemize}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Multiline-Item.html ===================================== @@ -0,0 +1,4 @@ +<ul> +<li>first item and more content for the first item</li> +<li>second item and more content for the second item</li> +</ul> ===================================== utils/haddock/doc/snippets/Snippet-List-Multiline-Item.tex ===================================== @@ -0,0 +1,11 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} + {\haddockbegindoc + \vbox{ + \begin{itemize} + \item + first item + and more content for the first item\par + \item + second item + and more content for the second item\par + \end{itemize}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Nested-Item.html ===================================== @@ -0,0 +1,20 @@ +<ul> +<li>Beginning of list This belongs to the list above! +<pre><code>nested +bird +tracks</code></pre> +<ul> +<li>Next list More of the indented list. +<ul> +<li>Deeper +<pre><code>even code blocks work</code></pre> +<ul> +<li>Deeper +<ol> +<li>Even deeper!</li> +<li>No newline separation even in indented lists.</li> +</ol></li> +</ul></li> +</ul></li> +</ul></li> +</ul> ===================================== utils/haddock/doc/snippets/Snippet-List-Nested-Item.tex ===================================== @@ -0,0 +1,47 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} +\newcommand{\haddockverb}{\small} + {\haddockbegindoc + \vbox{ + \begin{itemize} + \item + Beginning of list + This belongs to the list above!\par + \begin{quote} + {\haddockverb + \begin{verbatim} +nested +bird +tracks + \end{verbatim}} + \end{quote} + \vbox{ + \begin{itemize} + \item + Next list + More of the indented list.\par + \vbox{ + \begin{itemize} + \item + Deeper\par + \begin{quote} + {\haddockverb + \begin{verbatim} +even code blocks work + \end{verbatim}} + \end{quote} + \vbox{ + \begin{itemize} + \item + Deeper\par + \vbox{ + \begin{enumerate} + \item + Even deeper!\par + \item + No newline separation even in + indented lists.\par + \end{enumerate}} + \end{itemize}} + \end{itemize}} + \end{itemize}} + \end{itemize}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Not-Newline.html ===================================== @@ -0,0 +1,10 @@ +This is an enumerated list, with items not separated by newlines: +<ol> +<li>first item</li> +<li>second item</li> +</ol> +This is a bulleted list, with items not separated by newlines: +<ul> +<li>first item</li> +<li>second item</li> +</ul> ===================================== utils/haddock/doc/snippets/Snippet-List-Not-Newline.tex ===================================== @@ -0,0 +1,18 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} + {\haddockbegindoc + This is an enumerated list, with items not separated by newlines:\par + \vbox{ + \begin{enumerate} + \item + first item\par + \item + second item\par + \end{enumerate}} + This is a bulleted list, with items not separated by newlines:\par + \vbox{ + \begin{itemize} + \item + first item\par + \item + second item\par + \end{itemize}}} ===================================== utils/haddock/doc/snippets/Snippet-List-Not-Separated.html ===================================== @@ -0,0 +1,2 @@ +Missing blank lines before a list: * first item * +second item ===================================== utils/haddock/doc/snippets/Snippet-List-Not-Separated.tex ===================================== @@ -0,0 +1,5 @@ +\newcommand{\haddockbegindoc}{\hfill\\[1ex]} + {\haddockbegindoc + \textbf{Missing blank lines} before a list: + * first item + * second item\par} View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/45987fcec35aa76d9a9eb04ed2497d… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/45987fcec35aa76d9a9eb04ed2497d… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][master] Fix errors in the documentation of the eventlog STOP_THREAD status codes
by Marge Bot (＠marge-bot) 17 Feb '26

17 Feb '26

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC Commits: 10b4d364 by Duncan Coutts at 2026-02-17T17:04:52-05:00 Fix errors in the documentation of the eventlog STOP_THREAD status codes Fix the code for BlockedOnMsgThrowTo. Document all the known historical warts. Fixes issue #26867 - - - - - 1 changed file: - docs/users_guide/eventlog-formats.rst Changes: ===================================== docs/users_guide/eventlog-formats.rst ===================================== @@ -221,14 +221,41 @@ Thread and scheduling events * 11: BlockedOnDelay * 12: BlockedOnSTM * 13: BlockedOnDoProc - * 16: BlockedOnMsgThrowTo + * 14--17: unused + * 18: BlockedOnMsgThrowTo + * 19: unused * 20: BlockedOnMVarRead :field ThreadId: thread id of thread being blocked on (only for some status values) The indicated thread has stopped running for the reason given by ``status``. - + + Historically, the GHC-internal status codes for the reasons why threads are + blocked were used more-or-less directly as the status codes emitted into the + eventlog. This is now recognised as a mistake and the GHC internal codes and + these eventlog stop thread codes are now independent. We are nevertheless + left with some historical warts: + + * 14,15: these correspond to GHC internal status codes `BlockedOnGA` and + `BlockedOnGA_NoSend` that are no longer used (and may never have been + used by any released version of GHC). + * 16,17: these would be used by `BlockedOnCCall` and + `BlockedOnCCall_Interruptible` which are GHC-internal status codes, but + these are never and have never been emitted into the eventlog. This has + caused confusion, and many versions of the `ghc-events` package support + these status codes. Threads blocking on foreign calls use `ForeignCall` + above. + * 19: this would be used by `ThreadMigrating` which is a GHC-internal + status code, but this is never emitted into the eventlog. Threads + migrating use a separate event `MIGRATE_THREAD`. + * `BlockedOnMsgGlobalise`: this is supported by versions of `ghc-events` as + code 18, but it appears never to have been emitted by any released version + of GHC. Most likely it was related to the local-heap GC experiment that + was never released. + + Errata: previous versions of this document stated that code 16 is + `BlockedOnMsgThrowTo`. It appears this was always incorrect. .. event-type:: MIGRATE_THREAD View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/10b4d3641f6fe7a7443bd621d62d135… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/10b4d3641f6fe7a7443bd621d62d135… You're receiving this email because of your account on gitlab.haskell.org.

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