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* Fix source distribution generationwip/T17848GHC GitLab CI2020-02-181-2/+2
| | | | Fixes #17848, a regression introduced by 6e2d9ee2.
* Fix the "unused terminals: 2" warning in Parser.yVladislav Zavialov2020-02-161-3/+1
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* testsuite: Probe whether symlinks are usable on WindowsBen Gamari2020-02-161-1/+23
| | | | Closes #17706.
* Revert "users-guide: Document -ddump-srts"Ömer Sinan Ağacan2020-02-161-6/+0
| | | | | | | | This reverts commit 8cf646d36b02b8ea1c289cb52781c9171853b514. The flag was removed by 16d643cf. [ci skip]
* testsuite: Sort test names in expected change outputBen Gamari2020-02-151-3/+3
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* Accept performance changesBen Gamari2020-02-150-0/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These manifested in the integer-simple job. Metric Decrease: T12227 T5549 T14936 T4830 Conversions T5237 T8766 T4801 T10359 Metric Increase: T12234 T6048 T3294 T14683 T3064 T9872b T9872c T783 T5837 T10678 T14697 T5631 T9203 T13719 T12707 T13056 T9630 T10547 T9872d T1969 WWRec T10370 T5321FD haddock.Cabal T5642 T9872a T15263 T12425 MultiLayerModules T5205 T9233 T13379 haddock.base T9020 T13035 T12150 T9961
* users-guide: Fix broken referenceBen Gamari2020-02-141-1/+1
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* users-guide: Document -ddump-srtsBen Gamari2020-02-141-0/+6
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* compare-flags: Fix outputBen Gamari2020-02-141-6/+9
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* Bump Cabal submoduleBen Gamari2020-02-141-0/+0
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* Revert "compiler: Disable atomic renaming on Windows"Tamar Christina2020-02-141-13/+1
| | | | | | | The original reason this was disabled should be fixed by the previous commit. This reverts commit 1c1b63d63efe8b0f789aa7d5b87cfac3edd213eb.
* SysTools: Use "process job" when spawning processes on WindowsTamar Christina2020-02-141-3/+16
| | | | | | | | | | | | | | GHC should make calls using process jobs when calling out to GCC and LD. The reason is these use the exec () family of posix functions. Window's process model doesn't allow replacement of processes so this is emulated by creating a new process and immediately exiting the old one. Because of this when using normal Windows wait functions you would return even without the child process having finished. In this case if you are depending on data from the child you will enter a race condition. The usual fix for this is to use process jobs and wait for the termination of all children that have ever been spawn by the process you called. But also waiting for the freeing of all resources.
* Bump process submoduleBen Gamari2020-02-141-0/+0
| | | | | | | Folds in the second part of Phyx's Windows process exit fixes [1], hopefully finally resolving issue #17480. [1] https://github.com/haskell/process/pull/160
* gitlab-ci: Drop unnecessary GHC_VERSION checkBen Gamari2020-02-141-4/+0
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* gitlab-ci: Allow Windows build to fail due to #17777Ben Gamari2020-02-141-0/+1
| | | | | | The fact that `exec` isn't POSIX compliant means that things can break in arbitrarily bad ways. Sometimes things happen to work correctly but sadly this isn't always the case.
* gitlab-ci: Always use mingw64 python on WindowsBen Gamari2020-02-141-0/+3
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* gitlab-ci: Build integer-simple job in the validate flavourBen Gamari2020-02-141-0/+1
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* gitlab-ci: Allow i386 Windows builds to fail againBen Gamari2020-02-141-0/+2
| | | | Due to the resistance of #17736 to resolution.
* rts: Add more debug output to failed path in onIOCompleteBen Gamari2020-02-141-2/+3
| | | | This will help track down #17035.
* compare-flags: Don't rely on encoding flag of subprocess.check_outputBen Gamari2020-02-141-3/+2
| | | | Apparently it isn't supported by some slightly older Python versions.
* testsuite: Assert the opsys names are knownBen Gamari2020-02-141-0/+11
| | | | | | Previously opsys would take any string. This meant it was very easy for a typo to silently render the predicate ineffective. Fix this by checking the given operating system name against a list of known values.
* testsuite: Mark T7702 as fragile on WindowsBen Gamari2020-02-141-1/+1
| | | | | Due to #16799. There was previously an attempt to mark it as broken but the `opsys` name was incorrect.
* users-guide: Fix "invalid file" failureBen Gamari2020-02-141-1/+1
| | | | I have no idea how this worked previously. Different Python version?
* hadrian: Drop empty arguments from target listBen Gamari2020-02-141-1/+1
| | | | Fixes #17748.
* gitlab-ci: Fix various shellcheck warningsBen Gamari2020-02-141-42/+55
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* docs/compare-flags: Don't use python f-stringsBen Gamari2020-02-141-4/+4
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* users-guide: Fix unknown link targetsBen Gamari2020-02-142-6/+17
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* configure: Fix sphinx version testBen Gamari2020-02-141-1/+1
| | | | The check for the "v" prefix is redundant.
* base: Always clamp reads/writes to 2GB in lengthBen Gamari2020-02-141-9/+6
| | | | | | | | | | | | Previously we did this only on Darwin due to #17414. However, even on other platforms >2GB writes are on shaky ground. POSIX explicitly says that the result is implementation-specified and Linux will write at most 0x7ffff000, even on 64-bit platforms. Moreover, getting the sign of the syscall result correct is tricky, as demonstrated by the fact that T17414 currently fails on FreeBSD. For simplicity we now just uniformly clamp to 0x7ffff000 on all platforms.
* Pass -Wno-unused-command-line-arguments during link on FreeBSDBen Gamari2020-02-141-1/+3
| | | | | FreeBSD cc throws a warning if we pass -pthread without actually using any pthread symbols.
* testsuite/T16930: Don't rely on gnu grep specific --includeBen Gamari2020-02-142-12/+12
| | | | In BSD grep this flag only affects directory recursion.
* testsuite: Mark T6132 as broken on FreeBSDBen Gamari2020-02-141-1/+3
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* testsuite: Disable tests that assume name of libstdc++ on FreeBSDBen Gamari2020-02-142-3/+16
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* testsuite: Don't ask sed to operate in-place on symlinksBen Gamari2020-02-141-0/+4
| | | | | Some sed implementations (e.g. FreeBSD) refuse to operate in-place on symlinks.
* integer-gmp: Fix unused command-line argumentBen Gamari2020-02-141-1/+1
| | | | -L is only needed during linking.
* gitlab-ci: Deduplicate nightly job configurationBen Gamari2020-02-141-49/+20
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* gitlab-ci: Consolidate CI logicBen Gamari2020-02-145-336/+575
| | | | | | | | | | | | | | This moves nearly all of the CI logic to .gitlab/ci.sh. This improves things in a number of ways: * it's harder for inconsistencies to arise between architectures * it's easier to share logic between architectures * on Windows, it's easier to ensure that all CI steps are executed from within a properly initialized mingw session. While in town I also add a FreeBSD build job and update the Windows job to use the gitlab-runner PowerShell executor, since cmd.exe will be deprecated soon (fixing #17699).
* Rework handling of win32 toolchain tarballsBen Gamari2020-02-146-336/+64
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* make: Be more selective in building windows-extra-src tarballBen Gamari2020-02-141-1/+1
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* Hadrian: drop Sphinx flag checking for PDF documentation (#17825)Sylvain Henry2020-02-141-2/+0
| | | | | | | It seems that Sphinx produces the ghc-flags.txt in doc/users_guide/_build rather than pdfRoot. We could copy ghc-flags.txt into pdfRoot (like happens naturally in the HTML case) but the benefit is pretty small. Let's just only check the HTML case.
* De-duplicate overlapping NotesSimon Peyton Jones2020-02-142-44/+26
| | | | Documentation only. Fixes #17827
* Module hierarchy: HsToCore (cf #13009)Sylvain Henry2020-02-1460-240/+254
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* hadrian: Add execution and target architecture to stage-compilation figureBen Gamari2020-02-141-47/+198
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* Add explicit LANGUAGE Safe to template-haskellOleg Grenrus2020-02-149-3/+11
| | | (cherry picked from commit a5e0f376821ca882880b03b07b451aa574e289ec)
* GMP expects the Target platform as --host parameterSylvain Henry2020-02-141-2/+2
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* Add test for #17648Ömer Sinan Ağacan2020-02-143-0/+29
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* Ensure that Hadrian is built correctly before using itSylvain Henry2020-02-131-0/+3
| | | | | When Hadrian failed to build, the script would pick a previously built Hadrian (if available) instead of failing.
* Fix flag documentation (#17826)Sylvain Henry2020-02-131-2/+4
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* Remove -ddump-srts flagSylvain Henry2020-02-132-7/+0
| | | | This flag is deemed not useful.
* Always display inferred variables using bracesKrzysztof Gogolewski2020-02-1293-444/+520
| | | | | | | | | | | | | We now always show "forall {a}. T" for inferred variables, previously this was controlled by -fprint-explicit-foralls. This implements part 1 of https://github.com/ghc-proposals/ghc-proposals/pull/179. Part of GHC ticket #16320. Furthermore, when printing a levity restriction error, we now display the HsWrap of the expression. This lets users see the full elaboration with -fprint-typechecker-elaboration (see also #17670)
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