[Git][ghc/ghc][wip/batch-loaddll] 11 commits: ghci: add :shell command

Cheng Shao pushed to branch wip/batch-loaddll at Glasgow Haskell Compiler / GHC Commits: 06d25623 by Cheng Shao at 2025-09-17T19:32:27-04:00 ghci: add :shell command This patch adds a new :shell command to ghci which works similarly to :!, except it guarantees to run the command via sh -c. On POSIX hosts the behavior is identical to :!, but on Windows it uses the msys2 shell instead of system cmd.exe shell. This is convenient when writing simple ghci scripts that run simple POSIX commands, and the behavior can be expected to be coherent on both Windows and POSIX. Co-authored-by: Codex - - - - - 186054f7 by Cheng Shao at 2025-09-17T19:32:27-04:00 testsuite: remove legacy :shell trick This commit makes use of the built-in :shell functionality in ghci in the test cases, and remove the legacy :shell trick. - - - - - 0a3a4aa3 by Cheng Shao at 2025-09-17T19:32:27-04:00 docs: document :shell in ghci This commit documents the :shell command in ghci. Co-authored-by: Codex - - - - - a4ff12bb by Cheng Shao at 2025-09-17T19:33:09-04:00 ghc-internal: fix codepages program codepages was not properly updated during the base -> ghc-internal migration, this commit fixes it. - - - - - 7e094def by Cheng Shao at 2025-09-17T19:33:09-04:00 ghc-internal: relax ucd2haskell cabal upper bounds This commit relaxes ucd2haskell cabal upper bounds to make it runnable via ghc 9.12/9.14. - - - - - 7077c9f7 by Cheng Shao at 2025-09-17T19:33:09-04:00 ghc-internal: update to unicode 17.0.0 This commit updates the generated code in ghc-internal to match unicode 17.0.0. - - - - - cef8938f by sheaf at 2025-09-17T19:34:09-04:00 Bad record update msg: allow out-of-scope datacons This commit ensures that, when we encounter an invalid record update (because no constructor exists which contains all of the record fields mentioned in the record update), we graciously handle the situation in which the constructors themselves are not in scope. In that case, instead of looking up the constructors in the GlobalRdrEnv, directly look up their GREInfo using the lookupGREInfo function. Fixes #26391 - - - - - a2d9d7c2 by sheaf at 2025-09-17T19:34:09-04:00 Improve Notes about disambiguating record updates This commit updates the notes [Disambiguating record updates] and [Type-directed record disambiguation], in particular adding more information about the deprecation status of type-directed disambiguation of record updates. - - - - - ca6864df by Cheng Shao at 2025-09-18T13:41:57+02:00 compiler/ghci: replace the LoadDLL message with LoadDLLs As a part of #25407, this commit changes the LoadDLL message to LoadDLLs, which takes a list of DLL paths to load and returns the list of remote pointer handles. The wasm dyld is refactored to take advantage of LoadDLLs and harvest background parallelism. On other platforms, LoadDLLs is based on a fallback codepath that does sequential loading. The driver is not actually emitting singular LoadDLLs message with multiple DLLs yet, this is left in subsequent commits. Co-authored-by: Codex - - - - - 193509d0 by Cheng Shao at 2025-09-18T13:41:57+02:00 driver: separate downsweep/upsweep phase in loadPackages' This commit refactors GHC.Linker.Loader.loadPackages' to be separated into downsweep/upsweep phases: - The downsweep phase performs dependency analysis and generates a list of topologically sorted packages to load - The upsweep phase sequentially loads these packages by calling loadPackage This is a necessary refactoring to make it possible to make loading of DLLs concurrent. - - - - - 9fa89818 by Cheng Shao at 2025-09-18T13:46:10+02:00 driver: emit single LoadDLLs message to load multiple DLLs This commit refactors the driver so that it emits a single LoadDLLs message to load multiple DLLs in GHC.Linker.Loader.loadPackages'. Closes #25407. ------------------------- Metric Increase: MultiLayerModulesTH_OneShot TcPlugin_RewritePerf ------------------------- - - - - - 64 changed files: - compiler/GHC/Driver/Plugins.hs - compiler/GHC/Linker/Loader.hs - compiler/GHC/Linker/MacOS.hs - compiler/GHC/Linker/Types.hs - compiler/GHC/Rename/Env.hs - compiler/GHC/Rename/Pat.hs - compiler/GHC/Runtime/Interpreter.hs - compiler/GHC/Tc/Gen/Expr.hs - docs/users_guide/9.16.1-notes.rst - docs/users_guide/ghci.rst - ghc/GHCi/UI.hs - libraries/base/tests/unicode002.stdout - libraries/base/tests/unicode003.stdout - libraries/ghc-internal/codepages/MakeTable.hs - libraries/ghc-internal/codepages/Makefile - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/DerivedCoreProperties.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/GeneralCategory.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/SimpleLowerCaseMapping.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/SimpleTitleCaseMapping.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/SimpleUpperCaseMapping.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Version.hs - libraries/ghc-internal/tools/ucd2haskell/ucd.sh - libraries/ghc-internal/tools/ucd2haskell/ucd2haskell.cabal - libraries/ghc-internal/tools/ucd2haskell/unicode_version - libraries/ghci/GHCi/Message.hs - libraries/ghci/GHCi/ObjLink.hs - libraries/ghci/GHCi/Run.hs - testsuite/tests/driver/multipleHomeUnits/all.T - testsuite/tests/ghci.debugger/scripts/break022/all.T - testsuite/tests/ghci.debugger/scripts/break022/break022.script - testsuite/tests/ghci.debugger/scripts/break023/all.T - testsuite/tests/ghci.debugger/scripts/break023/break023.script - testsuite/tests/ghci/prog001/prog001.T - testsuite/tests/ghci/prog001/prog001.script - testsuite/tests/ghci/prog002/prog002.T - testsuite/tests/ghci/prog002/prog002.script - testsuite/tests/ghci/prog003/prog003.T - testsuite/tests/ghci/prog003/prog003.script - testsuite/tests/ghci/prog005/prog005.T - testsuite/tests/ghci/prog005/prog005.script - testsuite/tests/ghci/prog010/all.T - testsuite/tests/ghci/prog010/ghci.prog010.script - testsuite/tests/ghci/prog012/all.T - testsuite/tests/ghci/prog012/prog012.script - testsuite/tests/ghci/recompTHghci/all.T - testsuite/tests/ghci/recompTHghci/recompTHghci.script - testsuite/tests/ghci/scripts/T18330.script - testsuite/tests/ghci/scripts/T18330.stdout - testsuite/tests/ghci/scripts/T1914.script - testsuite/tests/ghci/scripts/T20587.script - testsuite/tests/ghci/scripts/T6106.script - testsuite/tests/ghci/scripts/T8353.script - testsuite/tests/ghci/scripts/all.T - testsuite/tests/ghci/scripts/ghci038.script - testsuite/tests/ghci/scripts/ghci058.script - testsuite/tests/ghci/scripts/ghci063.script - − testsuite/tests/ghci/shell.hs - + testsuite/tests/overloadedrecflds/should_fail/T26391.hs - + testsuite/tests/overloadedrecflds/should_fail/T26391.stderr - testsuite/tests/overloadedrecflds/should_fail/all.T - testsuite/tests/perf/compiler/MultiLayerModulesDefsGhci.script - testsuite/tests/perf/compiler/all.T - testsuite/tests/rts/linker/T2615.hs - utils/jsffi/dyld.mjs The diff was not included because it is too large. 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