Alan Zimmerman pushed to branch wip/az/ghc-cpp at Glasgow Haskell Compiler / GHC Commits: 9995c2b7 by Serge S. Gulin at 2025-05-04T17:13:36+03:00 Support for ARM64 Windows (LLVM-enabled) (fixes #24603) 1. Add Windows AArch64 cross-compilation support via CI jobs Introduce new CI configurations for cross-compiling to Windows ARM64 using Debian12Wine, FEX, and MSYS2. Configure toolchain variables for LLVM MinGW and Wine emulation in CI pipelines. 2. Adjust compiler and RTS for AArch64 Windows compatibility Reserve register `x18` on Windows and Darwin platforms in AArch64 codegen. Handle Windows-specific relocations and data sections in AArch64 assembler. Update PEi386 linker to recognize ARM64 binaries and support exception handling. Adjust LLVM target definitions and data layouts for new architectures. Update `ghc-toolchain` and build scripts to handle `TablesNextToCode` on Windows ARM64. 3. Enhance CI scripts and stability Modify `ci.sh` to handle mingw cross-targets, fixing GHC executable paths and test execution. Use `diff -w` in tests to ignore whitespace differences, improving cross-platform consistency. 4. Refactor and clean up code Remove redundant imports in hello.hs test. Improve error messages and checks for unsupported configurations in the driver. Add `EXDEV` error code to `errno.js`. Add async/sync flags to IO logs at `base.js`. Improve POSIX compatibility for file close at `base.js`: decrease indeterminism for mixed cases of async and sync code. 5. Update dependencies: `Cabal`, `Win32`, `directory`, `process`, `haskeline`, and `unix`. submodule Co-authored-by: Cheng Shao Co-authored-by: Dmitrii Egorov Co-authored-by: Andrei Borzenkov - - - - - 50fa8165 by Javran Cheng at 2025-05-05T05:55:39-04:00 Suppress unused do-binding if discarded variable is Any or ZonkAny. Consider example (#25895):

do { forever (return ()); blah }

where `forever :: forall a b. IO a -> IO b`. Nothing constrains `b`, so it will be instantiates with `Any` or `ZonkAny`. But we certainly don't want to complain about a discarded do-binding. Fixes #25895 - - - - - e46c6b18 by Rodrigo Mesquita at 2025-05-06T09:01:57-04:00 Refactor mkTopLevImportedEnv out of mkTopLevEnv This makes the code clearer and allows the top-level import context to be fetched directly from the HomeModInfo through the API (e.g. useful for the debugger). - - - - - 0ce0d263 by Rodrigo Mesquita at 2025-05-06T09:01:57-04:00 Export sizeOccEnv from GHC.Types.Name.Occurrence Counts the number of OccNames in an OccEnv - - - - - 165f98d8 by Simon Peyton Jones at 2025-05-06T09:02:39-04:00 Fix a bad untouchability bug im simplifyInfer This patch addresses #26004. The root cause was that simplifyInfer was willing to unify variables "far out". The fix, in runTcSWithEvBinds', is to initialise the inert set given-eq level with the current level. See (TGE6) in Note [Tracking Given equalities] in GHC.Tc.Solver.InertSet Two loosely related refactors: * Refactored approximateWCX to return just the free type variables of the un-quantified constraints. That avoids duplication of work (these free vars are needed in simplifyInfer) and makes it clearer that the constraints themselves are irrelevant. * A little local refactor of TcSMode, which reduces the number of parameters to runTcSWithEvBinds - - - - - 4bedc089 by Alan Zimmerman at 2025-05-06T18:07:57+01:00 GHC-CPP: first rough proof of concept Processes #define FOO #ifdef FOO x = 1 #endif Into [ITcppIgnored [L loc ITcppDefine] ,ITcppIgnored [L loc ITcppIfdef] ,ITvarid "x" ,ITequal ,ITinteger (IL {il_text = SourceText "1", il_neg = False, il_value = 1}) ,ITcppIgnored [L loc ITcppEndif] ,ITeof] In time, ITcppIgnored will be pushed into a comment - - - - - 58ef415b by Alan Zimmerman at 2025-05-06T18:07:57+01:00 Tidy up before re-visiting the continuation mechanic - - - - - 638a6fc3 by Alan Zimmerman at 2025-05-06T18:07:57+01:00 Switch preprocessor to continuation passing style Proof of concept, needs tidying up - - - - - cd688d33 by Alan Zimmerman at 2025-05-06T18:07:57+01:00 Small cleanup - - - - - 6a924b61 by Alan Zimmerman at 2025-05-06T18:07:57+01:00 Get rid of some cruft - - - - - 0ae29cce by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Starting to integrate. Need to get the pragma recognised and set - - - - - 40767a46 by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Make cppTokens extend to end of line, and process CPP comments - - - - - e5c0365b by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Remove unused ITcppDefined - - - - - aa1b2743 by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Allow spaces between # and keyword for preprocessor directive - - - - - 4116edcd by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Process CPP continuation lines They are emited as separate ITcppContinue tokens. Perhaps the processing should be more like a comment, and keep on going to the end. BUT, the last line needs to be slurped as a whole. - - - - - 1927c7fb by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Accumulate CPP continuations, process when ready Can be simplified further, we only need one CPP token - - - - - 163c0f61 by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Simplify Lexer interface. Only ITcpp We transfer directive lines through it, then parse them from scratch in the preprocessor. - - - - - 38c83ad6 by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Deal with directive on last line, with no trailing \n - - - - - 37b0f683 by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Start parsing and processing the directives - - - - - da250161 by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Prepare for processing include files - - - - - cae69ced by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Move PpState into PreProcess And initParserState, initPragState too - - - - - d84e8056 by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Process nested include files Also move PpState out of Lexer.x, so it is easy to evolve it in a ghci session, loading utils/check-cpp/Main.hs - - - - - 6c92a7f9 by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Split into separate files - - - - - 7cd10d14 by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Starting on expression parser. But it hangs. Time for Text.Parsec.Expr - - - - - bbd04cae by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Start integrating the ghc-cpp work From https://github.com/alanz/ghc-cpp - - - - - 0eb187a4 by Alan Zimmerman at 2025-05-06T18:07:58+01:00 WIP - - - - - 940f5b55 by Alan Zimmerman at 2025-05-06T18:07:58+01:00 Fixup after rebase - - - - - d0a3d584 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 WIP - - - - - efa9fe0a by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Fixup after rebase, including all tests pass - - - - - fdb1ea18 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Change pragma usage to GHC_CPP from GhcCPP - - - - - 934145eb by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Some comments - - - - - 540fade6 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Reformat - - - - - 12c8fab6 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Delete unused file - - - - - 27061919 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Rename module Parse to ParsePP - - - - - caf7e9bf by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Clarify naming in the parser - - - - - fde7bd48 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 WIP. Switching to alex/happy to be able to work in-tree Since Parsec is not available - - - - - 56fa02d5 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Layering is now correct - GHC lexer, emits CPP tokens - accumulated in Preprocessor state - Lexed by CPP lexer, CPP command extracted, tokens concated with spaces (to get rid of token pasting via comments) - if directive lexed and parsed by CPP lexer/parser, and evaluated - - - - - 69dac201 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 First example working Loading Example1.hs into ghci, getting the right results ``` {-# LANGUAGE GHC_CPP #-} module Example1 where y = 3 x = "hello" "bye now" foo = putStrLn x ``` - - - - - 7a654916 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Rebase, and all tests pass except whitespace for generated parser - - - - - 0dcd84c5 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 More plumbing. Ready for testing tomorrow. - - - - - f358cb54 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Proress. Renamed module State from Types And at first blush it seems to handle preprocessor scopes properly. - - - - - d0d5c285 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Insert basic GHC version macros into parser __GLASGOW_HASKELL__ __GLASGOW_HASKELL_FULL_VERSION__ __GLASGOW_HASKELL_PATCHLEVEL1__ __GLASGOW_HASKELL_PATCHLEVEL2__ - - - - - b7925c05 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Re-sync check-cpp for easy ghci work - - - - - 9d514f90 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Get rid of warnings - - - - - 0b5f458f by Alan Zimmerman at 2025-05-06T18:07:59+01:00 Rework macro processing, in check-cpp Macros kept at the top level, looked up via name, multiple arity versions per name can be stored - - - - - 009563f2 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 WIP. Can crack arguments for #define Next step it to crack out args in an expansion - - - - - 143cf978 by Alan Zimmerman at 2025-05-06T18:07:59+01:00 WIP on arg parsing. - - - - - ab01dc26 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Progress. Still screwing up nested parens. - - - - - 23ff567d by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Seems to work, but has redundant code - - - - - 8f91f5c3 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Remove redundant code - - - - - b2d68f7d by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Reformat - - - - - b96ece80 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Expand args, single pass Still need to repeat until fixpoint - - - - - 28b5caeb by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Fixed point expansion - - - - - 48e98b88 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Sync the playground to compiler - - - - - 7bd8b7dc by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Working on dumping the GHC_CPP result But We need to keep the BufSpan in a comment - - - - - 9e9bb4d1 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Keep BufSpan in queued comments in GHC.Parser.Lexer - - - - - 1c269760 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Getting close to being able to print the combined tokens showing what is in and what is out - - - - - 4d8a2f36 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 First implementation of dumpGhcCpp. Example output First dumps all macros in the state, then the source, showing which lines are in and which are out ------------------------------ - |#define FOO(A,B) A + B - |#define FOO(A,B,C) A + B + C - |#if FOO(1,FOO(3,4)) == 8 - |-- a comment |x = 1 - |#else - |x = 5 - |#endif - - - - - 18eb7796 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Clean up a bit - - - - - fc20f4ba by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Add -ddump-ghc-cpp option and a test based on it - - - - - a82da455 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Restore Lexer.x rules, we need them for continuation lines - - - - - 912eaf11 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Lexer.x: trying to sort out the span for continuations - We need to match on \n at the end of the line - We cannot simply back up for it - - - - - c7000536 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Inserts predefined macros. But does not dump properly Because the cpp tokens have a trailing newline - - - - - ad1e7f9e by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Remove unnecessary LExer rules We *need* the ones that explicitly match to the end of the line. - - - - - f4ea076a by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Generate correct span for ITcpp Dump now works, except we do not render trailing `\` for continuation lines. This is good enough for use in test output. - - - - - 8afb04b8 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Reduce duplication in lexer - - - - - 63398f1f by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Tweaks - - - - - 1ece4cbe by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Insert min_version predefined macros into state The mechanism now works. Still need to flesh out the full set. - - - - - 6df6abba by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Trying my alternative pragma syntax. It works, but dumpGhcCpp is broken, I suspect from the ITcpp token span update. - - - - - d7b5d614 by Alan Zimmerman at 2025-05-06T18:08:00+01:00 Pragma extraction now works, with both CPP and GHC_CPP For the following {-# LANGUAGE CPP #-} #if __GLASGOW_HASKELL__ >= 913 {-# LANGUAGE GHC_CPP #-} #endif We will enable GHC_CPP only - - - - - 043b4500 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Remove some tracing - - - - - 1166580a by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Fix test exes for changes - - - - - fec971d7 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 For GHC_CPP tests, normalise config-time-based macros - - - - - cbcf2a7f by Alan Zimmerman at 2025-05-06T18:08:01+01:00 WIP - - - - - bd7584c6 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 WIP again. What is wrong? - - - - - c504b628 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Revert to dynflags for normal not pragma lexing - - - - - 0b66a723 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Working on getting check-exact to work properly - - - - - 7305118a by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Passes CppCommentPlacement test - - - - - 4659e186 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Starting on exact printing with GHC_CPP While overriding normal CPP - - - - - 546a4023 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Correctly store CPP ignored tokens as comments By populating the lexeme string in it, based on the bufpos - - - - - 4bf8249b by Alan Zimmerman at 2025-05-06T18:08:01+01:00 WIP - - - - - 1fd04489 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Simplifying - - - - - ebaea51c by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Update the active state logic - - - - - 55af33ef by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Work the new logic into the mainline code - - - - - 761dfa38 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Process `defined` operator - - - - - c4930905 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Manage lexer state while skipping tokens There is very intricate layout-related state used when lexing. If a CPP directive blanks out some tokens, store this state when the blanking starts, and restore it when they are no longer being blanked. - - - - - 2cc75317 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Track the last token buffer index, for ITCppIgnored We need to attach the source being skipped in an ITCppIgnored token. We cannot simply use its BufSpan as an index into the underlying StringBuffer as it counts unicode chars, not bytes. So we update the lexer state to store the starting StringBuffer location for the last token, and use the already-stored length to extract the correct portion of the StringBuffer being parsed. - - - - - 567d16ec by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Process the ! operator in GHC_CPP expressions - - - - - ff29b658 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Predefine a constant when GHC_CPP is being used. - - - - - 0d9b19fc by Alan Zimmerman at 2025-05-06T18:08:01+01:00 WIP - - - - - 79cfff97 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Skip lines directly in the lexer when required - - - - - 2509eea9 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Properly manage location when accepting tokens again - - - - - bbb1b32d by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Seems to be working now, for Example9 - - - - - dab0aec6 by Alan Zimmerman at 2025-05-06T18:08:01+01:00 Remove tracing - - - - - d979e506 by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Fix parsing '*' in block comments Instead of replacing them with '-' - - - - - 14a22493 by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Keep the trailing backslash in a ITcpp token - - - - - 716c4ba1 by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Deal with only enabling one section of a group. A group is an instance of a conditional introduced by #if/#ifdef/#ifndef, and ending at the final #endif, including intermediate #elsif sections - - - - - c6201bdd by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Replace remaining identifiers with 0 when evaluating As per the spec - - - - - 3015e79a by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Snapshot before rebase - - - - - 4f215d1d by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Skip non-processed lines starting with # - - - - - 32888d20 by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Export generateMacros so we can use it in ghc-exactprint - - - - - f047e6ca by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Fix rebase - - - - - 0632f64b by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Expose initParserStateWithMacrosString - - - - - f57786ae by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Fix buggy lexer cppSkip It was skipping all lines, not just ones prefixed by # - - - - - b010c868 by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Fix evaluation of && to use the correct operator - - - - - d31d438d by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Deal with closing #-} at the start of a line - - - - - 56a08b1c by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Add the MIN_VERSION_GLASGOW_HASKELL predefined macro - - - - - d9562b7a by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Include MIN_VERSION_GLASGOW_HASKELL in GhcCpp01.stderr - - - - - a215a5ce by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Use a strict map for macro defines - - - - - d645f573 by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Process TIdentifierLParen Which only matters at the start of #define - - - - - 7da6441a by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Do not provide TIdentifierLParen paren twice - - - - - 2042c1b0 by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Handle whitespace between identifier and '(' for directive only - - - - - 33fec4ca by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Expose some Lexer bitmap manipulation helpers - - - - - d9b4cf25 by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Deal with line pragmas as tokens Blows up for dumpGhcCpp though - - - - - 079265e4 by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Allow strings delimited by a single quote too - - - - - 0f7bad13 by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Allow leading whitespace on cpp directives As per https://timsong-cpp.github.io/cppwp/n4140/cpp#1 - - - - - d8af2caf by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Implement GHC_CPP undef - - - - - 9156970c by Alan Zimmerman at 2025-05-06T18:08:02+01:00 Sort out expansion of no-arg macros, in a context with args And make the expansion bottom out, in the case of recursion - - - - - 855c1461 by Alan Zimmerman at 2025-05-06T21:52:14+01:00 Fix GhcCpp01 test The LINE pragma stuff works in ghc-exactprint when specifically setting flag to emit ITline_pragma tokens - - - - - 129 changed files: - .gitlab-ci.yml - .gitlab/ci.sh - .gitlab/generate-ci/gen_ci.hs - .gitlab/hello.hs - .gitlab/jobs.yaml - compiler/CodeGen.Platform.h - compiler/GHC.hs - compiler/GHC/Builtin/Types.hs - compiler/GHC/Cmm/Lexer.x - compiler/GHC/Cmm/Parser.y - compiler/GHC/Cmm/Parser/Monad.hs - compiler/GHC/CmmToAsm/AArch64/CodeGen.hs - compiler/GHC/CmmToAsm/AArch64/Instr.hs - compiler/GHC/CmmToAsm/AArch64/Ppr.hs - compiler/GHC/CmmToAsm/Reg/Linear/AArch64.hs - compiler/GHC/Driver/Backpack.hs - compiler/GHC/Driver/Config/Parser.hs - compiler/GHC/Driver/Downsweep.hs - compiler/GHC/Driver/Flags.hs - compiler/GHC/Driver/Main.hs - compiler/GHC/Driver/Pipeline.hs - compiler/GHC/Driver/Pipeline/Execute.hs - compiler/GHC/Driver/Session.hs - compiler/GHC/HsToCore/Expr.hs - compiler/GHC/HsToCore/Pmc/Solver/Types.hs - compiler/GHC/Parser.hs-boot - compiler/GHC/Parser.y - compiler/GHC/Parser/Annotation.hs - compiler/GHC/Parser/HaddockLex.x - compiler/GHC/Parser/Header.hs - compiler/GHC/Parser/Lexer.x - compiler/GHC/Parser/PostProcess.hs - compiler/GHC/Parser/PostProcess/Haddock.hs - + compiler/GHC/Parser/PreProcess.hs - + compiler/GHC/Parser/PreProcess/Eval.hs - + compiler/GHC/Parser/PreProcess/Lexer.x - + compiler/GHC/Parser/PreProcess/Macro.hs - + compiler/GHC/Parser/PreProcess/ParsePP.hs - + compiler/GHC/Parser/PreProcess/Parser.y - + compiler/GHC/Parser/PreProcess/ParserM.hs - + compiler/GHC/Parser/PreProcess/State.hs - compiler/GHC/Parser/Utils.hs - compiler/GHC/Platform/Regs.hs - compiler/GHC/Runtime/Eval.hs - compiler/GHC/SysTools/Cpp.hs - compiler/GHC/Tc/Solver.hs - compiler/GHC/Tc/Solver/InertSet.hs - compiler/GHC/Tc/Solver/Monad.hs - compiler/GHC/Tc/Types/Constraint.hs - compiler/GHC/Tc/Utils/TcType.hs - compiler/GHC/Types/Name/Occurrence.hs - compiler/ghc.cabal.in - docs/users_guide/debugging.rst - ghc/GHCi/UI.hs - hadrian/src/Oracles/Setting.hs - hadrian/src/Rules/BinaryDist.hs - hadrian/src/Rules/SourceDist.hs - hadrian/stack.yaml.lock - libraries/Cabal - libraries/Win32 - libraries/base/src/System/CPUTime/Windows.hsc - libraries/base/tests/perf/encodingAllocations.hs - libraries/directory - libraries/ghc-internal/jsbits/base.js - libraries/ghc-internal/jsbits/errno.js - libraries/ghc-internal/src/GHC/Internal/LanguageExtensions.hs - libraries/ghc-internal/src/GHC/Internal/System/Posix/Internals.hs - libraries/haskeline - libraries/process - libraries/unix - llvm-targets - m4/fp_cc_supports_target.m4 - m4/fptools_set_platform_vars.m4 - m4/ghc_tables_next_to_code.m4 - rts/StgCRun.c - rts/linker/PEi386.c - rts/win32/veh_excn.c - testsuite/tests/count-deps/CountDepsParser.stdout - testsuite/tests/driver/T4437.hs - testsuite/tests/ghc-api/T11579.hs - testsuite/tests/ghc-api/fixed-nodes/all.T - + testsuite/tests/ghc-cpp/GhcCpp01.hs - + testsuite/tests/ghc-cpp/GhcCpp01.stderr - + testsuite/tests/ghc-cpp/all.T - testsuite/tests/interface-stability/base-exports.stdout-javascript-unknown-ghcjs - testsuite/tests/interface-stability/template-haskell-exports.stdout - + testsuite/tests/printer/CppCommentPlacement.hs - testsuite/tests/printer/T17697.stderr - + testsuite/tests/typecheck/should_fail/T26004.hs - + testsuite/tests/typecheck/should_fail/T26004.stderr - testsuite/tests/typecheck/should_fail/T7453.stderr - testsuite/tests/typecheck/should_fail/all.T - + utils/check-cpp/.ghci - + utils/check-cpp/.gitignore - + utils/check-cpp/Eval.hs - + utils/check-cpp/Example1.hs - + utils/check-cpp/Example10.hs - + utils/check-cpp/Example11.hs - + utils/check-cpp/Example12.hs - + utils/check-cpp/Example13.hs - + utils/check-cpp/Example2.hs - + utils/check-cpp/Example3.hs - + utils/check-cpp/Example4.hs - + utils/check-cpp/Example5.hs - + utils/check-cpp/Example6.hs - + utils/check-cpp/Example7.hs - + utils/check-cpp/Example8.hs - + utils/check-cpp/Example9.hs - + utils/check-cpp/Lexer.x - + utils/check-cpp/Macro.hs - + utils/check-cpp/Main.hs - + utils/check-cpp/ParsePP.hs - + utils/check-cpp/ParseSimulate.hs - + utils/check-cpp/Parser.y - + utils/check-cpp/ParserM.hs - + utils/check-cpp/PreProcess.hs - + utils/check-cpp/README.md - + utils/check-cpp/State.hs - + utils/check-cpp/run.sh - utils/check-exact/Main.hs - utils/check-exact/Parsers.hs - utils/check-exact/Preprocess.hs - utils/check-exact/Utils.hs - utils/ghc-toolchain/exe/Main.hs - utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs - utils/haddock/haddock-api/src/Haddock/Parser.hs - utils/haddock/haddock-api/src/Haddock/Types.hs - utils/hsc2hs - utils/llvm-targets/gen-data-layout.sh The diff was not included because it is too large. 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