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* Module hierarchy: Cmm (cf #13009)Sylvain Henry2020-01-251-2/+2
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* Module hierarchy: StgToCmm (#13009)Sylvain Henry2019-09-101-1/+1
| | | | | | Add StgToCmm module hierarchy. Platform modules that are used in several other places (NCG, LLVM codegen, Cmm transformations) are put into GHC.Platform.
* Remove unused imports of the form 'import foo ()' (Fixes #17065)James Foster2019-08-151-1/+1
| | | | | | | | | | | These kinds of imports are necessary in some cases such as importing instances of typeclasses or intentionally creating dependencies in the build system, but '-Wunused-imports' can't detect when they are no longer needed. This commit removes the unused ones currently in the code base (not including test files or submodules), with the hope that doing so may increase parallelism in the build system by removing unnecessary dependencies.
* Move 'Platform' to ghc-bootJohn Ericson2019-06-191-1/+1
| | | | | | | ghc-pkg needs to be aware of platforms so it can figure out which subdire within the user package db to use. This is admittedly roundabout, but maybe Cabal could use the same notion of a platform as GHC to good affect too.
* compiler: introduce custom "GhcPrelude" PreludeHerbert Valerio Riedel2017-09-191-0/+2
| | | | | | | | | | | | | | | | | | This switches the compiler/ component to get compiled with -XNoImplicitPrelude and a `import GhcPrelude` is inserted in all modules. This is motivated by the upcoming "Prelude" re-export of `Semigroup((<>))` which would cause lots of name clashes in every modulewhich imports also `Outputable` Reviewers: austin, goldfire, bgamari, alanz, simonmar Reviewed By: bgamari Subscribers: goldfire, rwbarton, thomie, mpickering, bgamari Differential Revision: https://phabricator.haskell.org/D3989
* Fix todo in compiler/nativeGen: Rename Size to Formatmarkus2015-07-071-11/+11
| | | | | | | | | | | | | | | | | | This commit renames the Size module in the native code generator to Format, as proposed by a todo, as well as adjusting parameter names in other modules that use it. Test Plan: validate Reviewers: austin, simonmar, bgamari Reviewed By: simonmar, bgamari Subscribers: bgamari, simonmar, thomie Projects: #ghc Differential Revision: https://phabricator.haskell.org/D865
* nativeGen: detabify/dewhitespace SPARC/CodeGen/BaseAustin Seipp2014-07-201-53/+41
| | | | Signed-off-by: Austin Seipp <austin@well-typed.com>
* Add LANGUAGE pragmas to compiler/ source filesHerbert Valerio Riedel2014-05-151-1/+1
| | | | | | | | | | | | | | | | | | In some cases, the layout of the LANGUAGE/OPTIONS_GHC lines has been reorganized, while following the convention, to - place `{-# LANGUAGE #-}` pragmas at the top of the source file, before any `{-# OPTIONS_GHC #-}`-lines. - Moreover, if the list of language extensions fit into a single `{-# LANGUAGE ... -#}`-line (shorter than 80 characters), keep it on one line. Otherwise split into `{-# LANGUAGE ... -#}`-lines for each individual language extension. In both cases, try to keep the enumeration alphabetically ordered. (The latter layout is preferable as it's more diff-friendly) While at it, this also replaces obsolete `{-# OPTIONS ... #-}` pragma occurences by `{-# OPTIONS_GHC ... #-}` pragmas.
* Globally replace "hackage.haskell.org" with "ghc.haskell.org"Simon Marlow2013-10-011-1/+1
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* Remove dead codeJan Stolarek2013-09-101-0/+1
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* Remove OldCmm, convert backends to consume new CmmSimon Marlow2012-11-121-2/+1
| | | | | | | | | | | | | | | | | | This removes the OldCmm data type and the CmmCvt pass that converts new Cmm to OldCmm. The backends (NCGs, LLVM and C) have all been converted to consume new Cmm. The main difference between the two data types is that conditional branches in new Cmm have both true/false successors, whereas in OldCmm the false case was a fallthrough. To generate slightly better code we occasionally need to invert a conditional to ensure that the branch-not-taken becomes a fallthrough; this was previously done in CmmCvt, and it is now done in CmmContFlowOpt. We could go further and use the Hoopl Block representation for native code, which would mean that we could use Hoopl's postorderDfs and analyses for native code, but for now I've left it as is, using the old ListGraph representation for native code.
* Pass DynFlags down to bWordIan Lynagh2012-09-121-4/+5
| | | | | | I've switched to passing DynFlags rather than Platform, as (a) it's simpler to not have to extract targetPlatform in so many places, and (b) it may be useful to have DynFlags around in future.
* Move more code into codeGen/CodeGen/Platform.hsIan Lynagh2012-08-281-5/+6
| | | | | | | | HaskellMachRegs.h is no longer included in anything under compiler/ Also, includes/CodeGen.Platform.hs now includes "stg/MachRegs.h" rather than <stg/MachRegs.h> which means that we always get the file from the tree, rather than from the bootstrapping compiler.
* Use -fwarn-tabs when validatingIan Lynagh2011-11-041-0/+7
| | | | | We only use it for "compiler" sources, i.e. not for libraries. Many modules have a -fno-warn-tabs kludge for now.
* Merge in new code generator branch.Simon Marlow2011-01-241-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | This changes the new code generator to make use of the Hoopl package for dataflow analysis. Hoopl is a new boot package, and is maintained in a separate upstream git repository (as usual, GHC has its own lagging darcs mirror in http://darcs.haskell.org/packages/hoopl). During this merge I squashed recent history into one patch. I tried to rebase, but the history had some internal conflicts of its own which made rebase extremely confusing, so I gave up. The history I squashed was: - Update new codegen to work with latest Hoopl - Add some notes on new code gen to cmm-notes - Enable Hoopl lag package. - Add SPJ note to cmm-notes - Improve GC calls on new code generator. Work in this branch was done by: - Milan Straka <fox@ucw.cz> - John Dias <dias@cs.tufts.edu> - David Terei <davidterei@gmail.com> Edward Z. Yang <ezyang@mit.edu> merged in further changes from GHC HEAD and fixed a few bugs.
* Add new LLVM code generator to GHC. (Version 2)David Terei2010-06-151-5/+6
| | | | | | | | | | | | | | | | | | This was done as part of an honours thesis at UNSW, the paper describing the work and results can be found at: http://www.cse.unsw.edu.au/~pls/thesis/davidt-thesis.pdf A Homepage for the backend can be found at: http://hackage.haskell.org/trac/ghc/wiki/Commentary/Compiler/Backends/LLVM Quick summary of performance is that for the 'nofib' benchmark suite, runtimes are within 5% slower than the NCG and generally better than the C code generator. For some code though, such as the DPH projects benchmark, the LLVM code generator outperforms the NCG and C code generator by about a 25% reduction in run times.
* Split Reg into vreg/hreg and add register pairsBen.Lippmeier@anu.edu.au2009-05-181-3/+5
| | | | | | | | | | | | | * The old Reg type is now split into VirtualReg and RealReg. * For the graph coloring allocator, the type of the register graph is now (Graph VirtualReg RegClass RealReg), which shows that it colors in nodes representing virtual regs with colors representing real regs. (as was intended) * RealReg contains two contructors, RealRegSingle and RealRegPair, where RealRegPair is used to represent a SPARC double reg constructed from two single precision FP regs. * On SPARC we can now allocate double regs into an arbitrary register pair, instead of reserving some reg ranges to only hold float/double values.
* SPARC NCG: Split up into chunks, and fix warnings.Ben.Lippmeier@anu.edu.au2009-02-161-0/+116
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