[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 11 commits: Add 'Outputable Natural' instance

Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC Commits: ac5859b9 by sheaf at 2025-09-16T14:58:38-04:00 Add 'Outputable Natural' instance This commit adds an Outputable instance for the Natural natural-number type, as well as a "natural :: Natural -> SDoc" function that mirrors the existing "integer" function. - - - - - d48ebc23 by Cheng Shao at 2025-09-16T14:59:18-04:00 autoconf: emit warning instead of error for FIND_PYTHON logic This patch makes FIND_PYTHON logic emit warning instead of error, so when the user doesn't expect to run the testsuite driver (especially when installing a bindist), python would not be mandatory. Fixes #26347. - - - - - ea6d9927 by Cheng Shao at 2025-09-16T15:32:14-04:00 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 - - - - - 77c8093f by Cheng Shao at 2025-09-16T15:32:14-04:00 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. - - - - - e1d83486 by Cheng Shao at 2025-09-16T15:32:14-04:00 docs: document :shell in ghci This commit documents the :shell command in ghci. Co-authored-by: Codex - - - - - c074086d by Sylvain Henry at 2025-09-16T15:32:42-04:00 Print fully qualified unit names in name mismatch It's more user-friendly to directly print the right thing instead of requiring the user to retry with the additional `-dppr-debug` flag. - - - - - 3453d7bc by Ben Gamari at 2025-09-16T15:32:44-04:00 configure: Fix consistency between distrib and source CC check Previously distrib/configure.ac did not include `cc`. Closes #26394. - - - - - dc2b4f21 by Oleg Grenrus at 2025-09-16T15:32:44-04:00 Use isPrint in showUnique The comment say ``` -- Avoid emitting non-printable characters in pretty uniques. See #25989. ``` so let the code do exactly that. There are tags (at least : and 0 .. 9) which weren't in A .. z range. - - - - - 4b3378b4 by Oleg Grenrus at 2025-09-16T15:32:44-04:00 Shorten in-module links in hyperlinked source Instead of href="This.Module#ident" to just "#ident" - - - - - 3c81595c by Oleg Grenrus at 2025-09-16T15:32:44-04:00 Use showUnique in internalAnchorIdent Showing the key of Unique as a number is generally not a great idea. GHC Unique has a tag in high bits, so the raw number is unnecessarily big. So now we have ```html <a href="#l-rvgK"><span class="hs-identifier hs-var hs-var">bar</span></a> ``` instead of ```html <a href="#local-6989586621679015689"><span class="hs-identifier hs-var hs-var">bar</span></a> ``` Together with previous changes of shorter intra-module links the effect on compressed files is not huge, that is expected as we simply remove repetitive contents which pack well. ``` 12_694_206 Agda-2.9.0-docs-orig.tar.gz 12_566_065 Agda-2.9.0-docs.tar.gz ``` However when unpacked, the difference can be significant, e.g. Agda's largest module source got 5% reduction: ``` 14_230_117 Agda.Syntax.Parser.Parser.html 13_422_109 Agda.Syntax.Parser.Parser.html ``` The whole hyperlinked source code directory got similar reduction ``` 121M Agda-2.9.0-docs-orig/src 114M Agda-2.9.0-docs/src ``` For the reference, sources are about 2/3 of the generated haddocks ``` 178M Agda-2.9.0-docs-old 172M Agda-2.9.0-docs ``` so we get around 3.5% size reduction overall. Not bad for a small local changes. - - - - - 4ca1e525 by Stefan Schulze Frielinghaus at 2025-09-16T15:32:45-04:00 rts: Fix alignment for gen_workspace #26334 After a0fa4941903272c48b050d24e93eec819eff51bd bootstrap is broken on s390x and errors out with rts/sm/GCThread.h:207:5: error: error: alignment of array elements is greater than element size 207 | gen_workspace gens[]; | ^~~~~~~~~~~~~ The alignment constraint is applied via the attribute to the type gen_workspace and leaves the underlying type struct gen_workspace_ untouched. On Aarch64, x86, and s390x the struct has a size of 128 bytes. On Aarch64 and x86 the alignments of 128 and 64 are divisors of the size, respectively, which is why the type is a viable member type for an array. However, on s390x, the alignment is 256 and therefore is not a divisor of the size and hence cannot be used for arrays. Basically I see two fixes here. Either decrease the alignment requirement on s390x, or by applying the alignment constraint on the struct itself. The former might affect performance as noted in a0fa4941903272c48b050d24e93eec819eff51bd. The latter introduces padding bits whenever necessary in order to ensure that sizeof(gen_workspace[N])==N*sizeof(gen_workspace) holds which is done by this patch. - - - - - 63 changed files: - compiler/GHC/Iface/Errors/Ppr.hs - compiler/GHC/Types/Unique.hs - compiler/GHC/Unit/State.hs - compiler/GHC/Utils/Outputable.hs - configure.ac - distrib/configure.ac.in - docs/users_guide/ghci.rst - ghc/GHCi/UI.hs - m4/find_python.m4 - rts/sm/GCThread.h - 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/perf/compiler/MultiLayerModulesDefsGhci.script - testsuite/tests/perf/compiler/all.T - utils/ghc-toolchain/src/GHC/Toolchain/Tools/Cc.hs - utils/ghc-toolchain/src/GHC/Toolchain/Tools/Cxx.hs - utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker.hs - utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker/Renderer.hs - utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker/Utils.hs - utils/haddock/hypsrc-test/Main.hs - utils/haddock/hypsrc-test/ref/src/CPP.html - utils/haddock/hypsrc-test/ref/src/Classes.html - utils/haddock/hypsrc-test/ref/src/Constructors.html - utils/haddock/hypsrc-test/ref/src/Identifiers.html - utils/haddock/hypsrc-test/ref/src/LinkingIdentifiers.html - utils/haddock/hypsrc-test/ref/src/Literals.html - utils/haddock/hypsrc-test/ref/src/Operators.html - utils/haddock/hypsrc-test/ref/src/Polymorphism.html - utils/haddock/hypsrc-test/ref/src/PositionPragmas.html - utils/haddock/hypsrc-test/ref/src/Quasiquoter.html - utils/haddock/hypsrc-test/ref/src/Records.html - utils/haddock/hypsrc-test/ref/src/TemplateHaskellQuasiquotes.html - utils/haddock/hypsrc-test/ref/src/TemplateHaskellSplices.html - utils/haddock/hypsrc-test/ref/src/Types.html - utils/haddock/hypsrc-test/ref/src/UsingQuasiquotes.html The diff was not included because it is too large. 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