1. 30 Oct, 2012 2 commits
    • gmainlan@microsoft.com's avatar
      Generate correct LLVM for the new register allocation scheme. · dcf88e66
      gmainlan@microsoft.com authored
      We now have accurate global register liveness information attached to all Cmm
      procedures and jumps. With this patch, the LLVM back end uses this information
      to pass only the live floating point (F and D) registers on tail calls. This
      makes the LLVM back end compatible with the new register allocation strategy.
      
      Ideally the GHC LLVM calling convention would put all registers that are always
      live first in the parameter sequence. Unfortunately the specification is written
      so that on x86-64 SpLim (always live) is passed after the R registers. Therefore
      we must always pass *something* in the R registers, so we pass the LLVM value
      undef.
      dcf88e66
    • gmainlan@microsoft.com's avatar
      Attach global register liveness info to Cmm procedures. · 5ee08ddf
      gmainlan@microsoft.com authored
      All Cmm procedures now include the set of global registers that are live on
      procedure entry, i.e., the global registers used to pass arguments to the
      procedure. Only global registers that are use to pass arguments are included in
      this list.
      5ee08ddf
  2. 12 Sep, 2012 1 commit
    • ian@well-typed.com's avatar
      Pass DynFlags down to bWord · f611396a
      ian@well-typed.com authored
      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.
      f611396a
  3. 21 Aug, 2012 1 commit
  4. 07 Aug, 2012 1 commit
  5. 30 Jul, 2012 1 commit
    • Simon Marlow's avatar
      New codegen: do not split proc-points when using the NCG · f1ed6a10
      Simon Marlow authored
      Proc-point splitting is only required by backends that do not support
      having proc-points within a code block (that is, everything except the
      native backend, i.e. LLVM and C).
      
      Not doing proc-point splitting saves some compilation time, and might
      produce slightly better code in some cases.
      f1ed6a10
  6. 25 Jun, 2012 2 commits
  7. 20 Jun, 2012 1 commit
  8. 12 Jun, 2012 2 commits
  9. 17 Jan, 2012 1 commit
  10. 13 Jan, 2012 1 commit
  11. 10 Jan, 2012 1 commit
  12. 04 Dec, 2011 2 commits
    • dterei's avatar
      Fix ugly complexity issue in LLVM backend (#5652) · 7626b2b9
      dterei authored
      Compile time still isn't as good as I'd like but no easy changes
      available. LLVM backend could do with a big rewrite to improve
      performance as there are some ugly designs in it.
      
      At least the test case isn't 10min anymore, just a few seconds now.
      7626b2b9
    • dterei's avatar
      Add CCS for llvm · 90d2acd1
      dterei authored
      90d2acd1
  13. 22 Nov, 2011 1 commit
  14. 02 Oct, 2011 1 commit
  15. 25 Aug, 2011 2 commits
  16. 15 Jul, 2011 1 commit
    • Ian Lynagh's avatar
      More work towards cross-compilation · f07af788
      Ian Lynagh authored
      There's now a variant of the Outputable class that knows what
      platform we're targetting:
      
      class PlatformOutputable a where
          pprPlatform :: Platform -> a -> SDoc
          pprPlatformPrec :: Platform -> Rational -> a -> SDoc
      
      and various instances have had to be converted to use that class,
      and we pass Platform around accordingly.
      f07af788
  17. 06 Jul, 2011 2 commits
    • batterseapower's avatar
      Refactoring: explicitly mark whether we have an info table in RawCmm · 41ca0b8d
      batterseapower authored
      I introduced this to support explicitly recording the info table label
      in RawCmm for another patch I am working on, but it turned out to lead
      to significant simplification in those parts of the compiler that
      consume RawCmm.
      
      Now, instead of lots of tests for null [CmmStatic] we have a simple
      test of a Maybe, and have reduced the number of guys that need to know
      how to convert entry->info labels by a TON. There are only 3 callers
      of that function now!
      41ca0b8d
    • dterei's avatar
      Some general code cleaning in LLVM backend · 5505fbb7
      dterei authored
      5505fbb7
  18. 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.
      54843b5b
  19. 31 May, 2011 1 commit
  20. 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.
      889c084e
  21. 18 Jul, 2010 1 commit
  22. 13 Jul, 2010 1 commit
  23. 07 Jul, 2010 1 commit
  24. 21 Jun, 2010 2 commits
  25. 18 Jun, 2010 1 commit
    • dterei's avatar
      Add support of TNTC to llvm backend · 24a3fee9
      dterei authored
      We do this through a gnu as feature called subsections,
      where you can put data/code into a numbered subsection
      and those subsections will be joined together in descending
      order by gas at compile time.
      24a3fee9
  26. 15 Jun, 2010 1 commit