1. 19 Sep, 2017 1 commit
  2. 20 Jul, 2014 1 commit
  3. 15 May, 2014 1 commit
    • Herbert Valerio Riedel's avatar
      Add LANGUAGE pragmas to compiler/ source files · 23892440
      Herbert Valerio Riedel authored
      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.
  4. 01 Oct, 2013 1 commit
  5. 12 Nov, 2012 1 commit
    • Simon Marlow's avatar
      Remove OldCmm, convert backends to consume new Cmm · d92bd17f
      Simon Marlow authored
      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.
  6. 04 Nov, 2011 1 commit
  7. 05 Jul, 2011 1 commit
    • batterseapower's avatar
      Refactoring: use a structured CmmStatics type rather than [CmmStatic] · 54843b5b
      batterseapower authored
      I observed that the [CmmStatics] within CmmData uses the list in a very stylised way.
      The first item in the list is almost invariably a CmmDataLabel. Many parts of the
      compiler pattern match on this list and fail if this is not true.
      This patch makes the invariant explicit by introducing a structured type CmmStatics
      that holds the label and the list of remaining [CmmStatic].
      There is one wrinkle: the x86 backend sometimes wants to output an alignment directive just
      before the label. However, this can be easily fixed up by parameterising the native codegen
      over the type of CmmStatics (though the GenCmmTop parameterisation) and using a pair
      (Alignment, CmmStatics) there instead.
      As a result, I think we will be able to remove CmmAlign and CmmDataLabel from the CmmStatic
      data type, thus nuking a lot of code and failing pattern matches. This change will come as part
      of my next patch.
  8. 29 May, 2011 1 commit
    • Ian Lynagh's avatar
      Remove most of the CPP from AsmCodeGen · 622c3cfe
      Ian Lynagh authored
      In particular, the "#error" for platforms without a NCG is gone,
      which means the module should now build on all platforms again.
      I'm not sure if this is the nicest way to handle multiple platforms
      here, but it works for now.
  9. 24 Jan, 2011 1 commit
    • Simon Marlow's avatar
      Merge in new code generator branch. · 889c084e
      Simon Marlow authored
      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.
  10. 16 Feb, 2009 1 commit