cvs commit: fptools/ghc/compiler/nativeGen AbsCStixGen.lhs AsmCodeGen.lhs AsmRegAlloc.lhs MachCode.lhs MachMisc.lhs MachRegs.lhs PprMach.lhs RegAllocInfo.lhs Stix.lhs StixMacro.lhs StixPrim.lhs fptools/ghc/compiler/prelude PrimRep.lhs

[Julian Seward]

sewardj     2001/12/10 10:04:52 PST

  Modified files:
    ghc/compiler/nativeGen AbsCStixGen.lhs AsmCodeGen.lhs 
                           AsmRegAlloc.lhs MachCode.lhs 
                           MachMisc.lhs MachRegs.lhs PprMach.lhs 
                           RegAllocInfo.lhs Stix.lhs StixMacro.lhs 
                           StixPrim.lhs 
    ghc/compiler/prelude PrimRep.lhs 
  Log:
  Add just enough infrastructure to the NCG that it can deal with simple 64-bit
  code on 32-bit platforms.  Main changes are:
  
  * Addition of a simple 64-bit instruction selection fn iselExpr64 to MachCode.
    This generates code for a 64-bit value and places the results into two
    virtual registers, related thusly:
  
  * Add a new type VRegUnique, which is used to label Stix virtual registers.
    This type used to be a plain Unique, but that forces the assumption that
    each Abstract-C level C temporary corresponds to exactly one Stix virtual
    register, which is untrue when the C temporary is 64-bit sized on a
    32-bit machine.  In the new scheme, the Unique for the C temporary can
    turn into two related VRegUniques, related by having the same embedded
    unique.
  
  * Made a start on 'target metrics' by adding ncg_target_is_32bits to the
    end of Stix.lhs.
  
  * Cleaned up numerous other gruesomenesses in the NCG which never came
    to light before now.   Got rid of MachMisc.sizeOf, which doesn't make
    sense in a 64-bit setting, and replaced it by calls to
    PrimRep.getPrimRepArrayElemSize, which, as far as I'm concerned, is the
    definitive answer to the questio `How Big Is This PrimRep Really?'
  
  Result: on x86-linux, at least, you can now compile the Entire Prelude
  with -fasm!  At this stage I cannot claim that the resulting code is
  correct, but it's a start.
  
  Revision  Changes    Path
  1.46      +16 -6     fptools/ghc/compiler/nativeGen/AbsCStixGen.lhs
  1.50      +10 -2     fptools/ghc/compiler/nativeGen/AsmCodeGen.lhs
  1.30      +8 -6      fptools/ghc/compiler/nativeGen/AsmRegAlloc.lhs
  1.82      +170 -19   fptools/ghc/compiler/nativeGen/MachCode.lhs
  1.50      +1 -13     fptools/ghc/compiler/nativeGen/MachMisc.lhs
  1.43      +40 -18    fptools/ghc/compiler/nativeGen/MachRegs.lhs
  1.53      +2 -2      fptools/ghc/compiler/nativeGen/PprMach.lhs
  1.33      +8 -9      fptools/ghc/compiler/nativeGen/RegAllocInfo.lhs
  1.35      +39 -4     fptools/ghc/compiler/nativeGen/Stix.lhs
  1.35      +6 -0      fptools/ghc/compiler/nativeGen/StixMacro.lhs
  1.76      +5 -3      fptools/ghc/compiler/nativeGen/StixPrim.lhs
  1.24      +2 -0      fptools/ghc/compiler/prelude/PrimRep.lhs