Alan Zimmerman pushed to branch wip/az/ghc-cpp at Glasgow Haskell Compiler / GHC Commits: ce616f49 by Simon Peyton Jones at 2025-04-27T21:10:25+01:00 Fix infelicities in the Specialiser On the way to #23109 (unary classes) I discovered some infelicities (or maybe tiny bugs, I forget) in the type-class specialiser. I also tripped over #25965, an outright bug in the rule matcher Specifically: * Refactor: I enhanced `wantCallsFor`, whih previously always said `True`, to discard calls of class-ops, data constructors etc. This is a bit more efficient; and it means we don't need to worry about filtering them out later. * Fix: I tidied up some tricky logic that eliminated redundant specialisations. It wasn't working correctly. See the expanded Note [Specialisations already covered], and (MP3) in Note [Specialising polymorphic dictionaries]. See also the new top-level `alreadyCovered` function, which now goes via `GHC.Core.Rules.ruleLhsIsMoreSpecific` I also added a useful Note [The (CI-KEY) invariant] * Fix #25965: fixed a tricky bug in the `go_fam_fam` in `GHC.Core.Unify.uVarOrFam`, which allows matching to succeed without binding all type varibles. I enhanced Note [Apartness and type families] some more * #25703. This ticket "just works" with -fpolymorphic-specialisation; but I was surprised that it worked! In this MR I added documentation to Note [Interesting dictionary arguments] to explain; and tests to ensure it stays fixed. - - - - - 22d11fa8 by Simon Peyton Jones at 2025-04-28T18:05:19-04:00 Track rewriter sets more accurately in constraint solving The key change, which fixed #25440, is to call `recordRewriter` in GHC.Tc.Solver.Rewrite.rewrite_exact_fam_app. This missing call meant that we were secretly rewriting a Wanted with a Wanted, but not really noticing; and that led to a very bad error message, as you can see in the ticket. But of course that led me into rabbit hole of other refactoring around the RewriteSet code: * Improve Notes [Wanteds rewrite Wanteds] * Zonk the RewriterSet in `zonkCtEvidence` rather than only in GHC.Tc.Errors. This is tidier anyway (e.g. de-clutters debug output), and helps with the next point. * In GHC.Tc.Solver.Equality.inertsCanDischarge, don't replace a constraint with no rewriters with an equal constraint that has many. See See (CE4) in Note [Combining equalities] * Move zonkRewriterSet and friends from GHC.Tc.Zonk.Type into GHC.Tc.Zonk.TcType, where they properly belong. A handful of tests get better error messages. For some reason T24984 gets 12% less compiler allocation -- good Metric Decrease: T24984 - - - - - 6467d61e by Brandon Chinn at 2025-04-29T18:36:03-04:00 Fix lexing "\^\" (#25937) This broke in the refactor in !13128, where the old code parsed escape codes and collapsed string gaps at the same time, but the new code collapsed gaps first, then resolved escape codes. The new code used a naive heuristic to skip escaped backslashes, but didn't account for "\^\". - - - - - 99868a86 by Jens Petersen at 2025-04-29T18:36:44-04:00 hadrian: default selftest to disabled - - - - - aba2a4a5 by Zubin Duggal at 2025-04-30T06:35:59-04:00 get-win32-tarballs.py: List tarball files to be downloaded if we cannot find them Fixes #25929 - - - - - d99a617b by Ben Gamari at 2025-04-30T06:36:40-04:00 Move Data ModuleName instance to Language.Haskell.Syntax.Module.Name Fixes #25968. - - - - - b5e557d8 by Alan Zimmerman at 2025-04-30T18:27:18+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 - - - - - 8571387c by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Tidy up before re-visiting the continuation mechanic - - - - - 92273c0f by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Switch preprocessor to continuation passing style Proof of concept, needs tidying up - - - - - d8c87361 by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Small cleanup - - - - - 30a1a4e5 by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Get rid of some cruft - - - - - 7dd5d77c by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Starting to integrate. Need to get the pragma recognised and set - - - - - b44b17cf by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Make cppTokens extend to end of line, and process CPP comments - - - - - 71d19727 by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Remove unused ITcppDefined - - - - - c326a944 by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Allow spaces between # and keyword for preprocessor directive - - - - - 9dcd821c by Alan Zimmerman at 2025-04-30T18:27:18+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. - - - - - 873d3c9b by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Accumulate CPP continuations, process when ready Can be simplified further, we only need one CPP token - - - - - 1d604a35 by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Simplify Lexer interface. Only ITcpp We transfer directive lines through it, then parse them from scratch in the preprocessor. - - - - - bcd77e8b by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Deal with directive on last line, with no trailing \n - - - - - 55f1056a by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Start parsing and processing the directives - - - - - 8f2079a7 by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Prepare for processing include files - - - - - 2407cbed by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Move PpState into PreProcess And initParserState, initPragState too - - - - - 8a9008c4 by Alan Zimmerman at 2025-04-30T18:27:18+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 - - - - - 24e47f5d by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Split into separate files - - - - - ace37ecb by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Starting on expression parser. But it hangs. Time for Text.Parsec.Expr - - - - - d7c05912 by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Start integrating the ghc-cpp work From https://github.com/alanz/ghc-cpp - - - - - c96e142b by Alan Zimmerman at 2025-04-30T18:27:18+01:00 WIP - - - - - c4cc4cec by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Fixup after rebase - - - - - 1728a5f9 by Alan Zimmerman at 2025-04-30T18:27:18+01:00 WIP - - - - - 86eb1e35 by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Fixup after rebase, including all tests pass - - - - - 091892a4 by Alan Zimmerman at 2025-04-30T18:27:18+01:00 Change pragma usage to GHC_CPP from GhcCPP - - - - - fc6e9524 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Some comments - - - - - 7e907713 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Reformat - - - - - 9844268f by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Delete unused file - - - - - 714dec3b by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Rename module Parse to ParsePP - - - - - 6c09c72a by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Clarify naming in the parser - - - - - 90f621b0 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 WIP. Switching to alex/happy to be able to work in-tree Since Parsec is not available - - - - - cdc19c1d by Alan Zimmerman at 2025-04-30T18:27:19+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 - - - - - 5a95ab9e by Alan Zimmerman at 2025-04-30T18:27:19+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 ``` - - - - - 62a44662 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Rebase, and all tests pass except whitespace for generated parser - - - - - e390dc29 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 More plumbing. Ready for testing tomorrow. - - - - - a854d7d1 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Proress. Renamed module State from Types And at first blush it seems to handle preprocessor scopes properly. - - - - - 8413c8a1 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Insert basic GHC version macros into parser __GLASGOW_HASKELL__ __GLASGOW_HASKELL_FULL_VERSION__ __GLASGOW_HASKELL_PATCHLEVEL1__ __GLASGOW_HASKELL_PATCHLEVEL2__ - - - - - 2b2b9228 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Re-sync check-cpp for easy ghci work - - - - - 430277cc by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Get rid of warnings - - - - - 56c60aa3 by Alan Zimmerman at 2025-04-30T18:27:19+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 - - - - - ed637dcd by Alan Zimmerman at 2025-04-30T18:27:19+01:00 WIP. Can crack arguments for #define Next step it to crack out args in an expansion - - - - - eb140d03 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 WIP on arg parsing. - - - - - c93e5c43 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Progress. Still screwing up nested parens. - - - - - b01ee9be by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Seems to work, but has redundant code - - - - - 57e61eb2 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Remove redundant code - - - - - 53a013e9 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Reformat - - - - - ff5d845d by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Expand args, single pass Still need to repeat until fixpoint - - - - - eabfa64f by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Fixed point expansion - - - - - 76e3c95c by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Sync the playground to compiler - - - - - b308b101 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Working on dumping the GHC_CPP result But We need to keep the BufSpan in a comment - - - - - 8216dfd9 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Keep BufSpan in queued comments in GHC.Parser.Lexer - - - - - 4aa75569 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Getting close to being able to print the combined tokens showing what is in and what is out - - - - - 621fd6bc by Alan Zimmerman at 2025-04-30T18:27:19+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 - - - - - 38b978bc by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Clean up a bit - - - - - 5b80b455 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Add -ddump-ghc-cpp option and a test based on it - - - - - fddd2454 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Restore Lexer.x rules, we need them for continuation lines - - - - - 30b3055a by Alan Zimmerman at 2025-04-30T18:27:19+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 - - - - - fc8d7dc7 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Inserts predefined macros. But does not dump properly Because the cpp tokens have a trailing newline - - - - - b12d9528 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Remove unnecessary LExer rules We *need* the ones that explicitly match to the end of the line. - - - - - 95da0848 by Alan Zimmerman at 2025-04-30T18:27:19+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. - - - - - a89c12e4 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Reduce duplication in lexer - - - - - c072ea30 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Tweaks - - - - - ff1e169e by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Insert min_version predefined macros into state The mechanism now works. Still need to flesh out the full set. - - - - - 77b2fb0b by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Trying my alternative pragma syntax. It works, but dumpGhcCpp is broken, I suspect from the ITcpp token span update. - - - - - 946fcffe by Alan Zimmerman at 2025-04-30T18:27:19+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 - - - - - ea220ec5 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Remove some tracing - - - - - 77e29d38 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Fix test exes for changes - - - - - a05c2b54 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 For GHC_CPP tests, normalise config-time-based macros - - - - - b872a140 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 WIP - - - - - 171744b2 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 WIP again. What is wrong? - - - - - 66b3d2b5 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Revert to dynflags for normal not pragma lexing - - - - - 7c9b44a3 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Working on getting check-exact to work properly - - - - - 614ea6a0 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Passes CppCommentPlacement test - - - - - eb13851f by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Starting on exact printing with GHC_CPP While overriding normal CPP - - - - - 25842766 by Alan Zimmerman at 2025-04-30T18:27:19+01:00 Correctly store CPP ignored tokens as comments By populating the lexeme string in it, based on the bufpos - - - - - c7c62d60 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 WIP - - - - - 950201a7 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Simplifying - - - - - 71e2e916 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Update the active state logic - - - - - 1f85f1fd by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Work the new logic into the mainline code - - - - - 44385d18 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Process `defined` operator - - - - - bd22d304 by Alan Zimmerman at 2025-04-30T18:27:20+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. - - - - - e967f92b by Alan Zimmerman at 2025-04-30T18:27:20+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. - - - - - 69b1c666 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Process the ! operator in GHC_CPP expressions - - - - - 589bf9fb by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Predefine a constant when GHC_CPP is being used. - - - - - e5080cfb by Alan Zimmerman at 2025-04-30T18:27:20+01:00 WIP - - - - - 46b58f7c by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Skip lines directly in the lexer when required - - - - - 51db8d2f by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Properly manage location when accepting tokens again - - - - - f7851788 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Seems to be working now, for Example9 - - - - - 23ca6470 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Remove tracing - - - - - b5c3c800 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Fix parsing '*' in block comments Instead of replacing them with '-' - - - - - 34952423 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Keep the trailing backslash in a ITcpp token - - - - - 967699fe by Alan Zimmerman at 2025-04-30T18:27:20+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 - - - - - 7496a89d by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Replace remaining identifiers with 0 when evaluating As per the spec - - - - - 7d8ae8e0 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Snapshot before rebase - - - - - cbaef129 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Skip non-processed lines starting with # - - - - - dbbf4975 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Export generateMacros so we can use it in ghc-exactprint - - - - - 89e62cfd by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Fix rebase - - - - - 922d6f93 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Expose initParserStateWithMacrosString - - - - - 0591e754 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Fix buggy lexer cppSkip It was skipping all lines, not just ones prefixed by # - - - - - d1437795 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Fix evaluation of && to use the correct operator - - - - - 6f1b578d by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Deal with closing #-} at the start of a line - - - - - b323cddc by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Add the MIN_VERSION_GLASGOW_HASKELL predefined macro - - - - - a95937c9 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Include MIN_VERSION_GLASGOW_HASKELL in GhcCpp01.stderr - - - - - 8d808fb3 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Use a strict map for macro defines - - - - - 7b305c1f by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Process TIdentifierLParen Which only matters at the start of #define - - - - - 93e98895 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Do not provide TIdentifierLParen paren twice - - - - - 6c1cc903 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Handle whitespace between identifier and '(' for directive only - - - - - f6bc6402 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Expose some Lexer bitmap manipulation helpers - - - - - 9c0c7d3a by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Deal with line pragmas as tokens Blows up for dumpGhcCpp though - - - - - 91877c57 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Allow strings delimited by a single quote too - - - - - a35d6cc1 by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Allow leading whitespace on cpp directives As per https://timsong-cpp.github.io/cppwp/n4140/cpp#1 - - - - - e271da2f by Alan Zimmerman at 2025-04-30T18:27:20+01:00 Implement GHC_CPP undef - - - - - da493772 by Alan Zimmerman at 2025-04-30T18:27:20+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 - - - - - 115 changed files: - compiler/GHC.hs - compiler/GHC/Cmm/Lexer.x - compiler/GHC/Cmm/Parser.y - compiler/GHC/Cmm/Parser/Monad.hs - compiler/GHC/Core/Coercion.hs - compiler/GHC/Core/Opt/Specialise.hs - compiler/GHC/Core/Rules.hs - compiler/GHC/Core/Unify.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/Parser.hs-boot - compiler/GHC/Parser.y - compiler/GHC/Parser/Annotation.hs - compiler/GHC/Parser/Errors/Types.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/String.hs - compiler/GHC/Parser/Utils.hs - compiler/GHC/SysTools/Cpp.hs - compiler/GHC/Tc/Errors.hs - compiler/GHC/Tc/Solver/Default.hs - compiler/GHC/Tc/Solver/Equality.hs - compiler/GHC/Tc/Solver/Monad.hs - compiler/GHC/Tc/Solver/Rewrite.hs - compiler/GHC/Tc/Types/Constraint.hs - compiler/GHC/Tc/Utils/TcMType.hs - compiler/GHC/Tc/Utils/Unify.hs - compiler/GHC/Tc/Zonk/TcType.hs - compiler/GHC/Tc/Zonk/Type.hs - compiler/GHC/Types/Basic.hs - compiler/GHC/Unit/Types.hs - compiler/Language/Haskell/Syntax/Module/Name.hs - compiler/ghc.cabal.in - docs/users_guide/debugging.rst - ghc/GHCi/UI.hs - hadrian/README.md - hadrian/hadrian.cabal - hadrian/src/Rules/SourceDist.hs - hadrian/stack.yaml.lock - libraries/ghc-internal/src/GHC/Internal/LanguageExtensions.hs - m4/fp_setup_windows_toolchain.m4 - testsuite/tests/count-deps/CountDepsParser.stdout - testsuite/tests/driver/T4437.hs - testsuite/tests/ghc-api/T11579.hs - + testsuite/tests/ghc-cpp/GhcCpp01.hs - + testsuite/tests/ghc-cpp/GhcCpp01.stderr - + testsuite/tests/ghc-cpp/all.T - testsuite/tests/indexed-types/should_fail/T3330c.stderr - testsuite/tests/indexed-types/should_fail/T4174.stderr - testsuite/tests/indexed-types/should_fail/T8227.stderr - testsuite/tests/interface-stability/template-haskell-exports.stdout - + testsuite/tests/parser/should_run/T25937.hs - + testsuite/tests/parser/should_run/T25937.stdout - testsuite/tests/parser/should_run/all.T - + testsuite/tests/parser/should_run/parser_unit_tests.hs - + testsuite/tests/printer/CppCommentPlacement.hs - + testsuite/tests/simplCore/should_compile/T25703.hs - + testsuite/tests/simplCore/should_compile/T25703.stderr - + testsuite/tests/simplCore/should_compile/T25703a.hs - + testsuite/tests/simplCore/should_compile/T25703a.stderr - + testsuite/tests/simplCore/should_compile/T25965.hs - testsuite/tests/simplCore/should_compile/all.T - testsuite/tests/typecheck/should_compile/T25266a.stderr - testsuite/tests/typecheck/should_fail/T18851.stderr - + 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/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 The diff was not included because it is too large. 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