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[smlnj] View of /sml/trunk/src/MLRISC/sparc/sparcRegAlloc.sml
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View of /sml/trunk/src/MLRISC/sparc/sparcRegAlloc.sml

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Revision 129 - (download) (annotate)
Mon Sep 7 19:39:21 1998 UTC (22 years, 1 month ago) by monnier
File size: 2436 byte(s)
Initial revision
(* sparcRegAlloc.sml --- sparc integer and floating register allocator
 *
 * COPYRIGHT (c) 1996 AT&T Bell Laboratories.
 *
 *)

(* Integer and floating register allocators are a partial application
 * of a curried functor. 
 *)

functor SparcRegAlloc(structure P : INSN_PROPERTIES
		     structure F : FLOWGRAPH 
		     structure I : INSTRUCTIONS where C = SparcCells
		     structure Asm : EMITTER_NEW
		         sharing Asm.F = F
			 sharing P.I = F.I = Asm.I = I) :
  sig
    functor IntRa (structure RaUser : RA_USER_PARAMS
		     where type I.operand = I.operand
		       and type I.instruction = I.instruction
		       and type B.name = F.B.name) : sig
      datatype mode = REGISTER_ALLOCATION | COPY_PROPAGATION
      val ra : mode -> F.cluster -> F.cluster
     end
    functor FloatRa (structure RaUser : RA_USER_PARAMS
		     where type I.operand = I.operand
		       and type I.instruction = I.instruction
		       and type B.name = F.B.name) : sig
      datatype mode = REGISTER_ALLOCATION | COPY_PROPAGATION
      val ra : mode -> F.cluster -> F.cluster
     end
   end=
struct

  structure C=I.C

  (* liveness analysis for general purpose registers *)
  structure RegLiveness = 
    Liveness(structure Flowgraph=F
	     structure Instruction=I
	     val defUse = P.defUse C.GP
	     fun regSet c = #1 (c:SparcCells.cellset)
	     fun cellset((_,f),r) = (r,f))


  functor IntRa =
    RegAllocator
       (structure RaArch = struct
	   structure InsnProps = P
	   structure AsmEmitter = Asm
	   structure I = I
	   structure Liveness=RegLiveness

	   val defUse = P.defUse C.GP
	   val firstPseudoR = 32
	   val maxPseudoR = SparcCells.maxCell
	   val numRegs = SparcCells.numCell SparcCells.GP
	   fun regSet c = #1 (c:SparcCells.cellset)
	end)

  (* liveness analysis for floating point registers *)
  structure FregLiveness = 
    Liveness(structure Flowgraph=F
	     structure Instruction=I
	     val defUse = P.defUse C.FP
	     fun regSet c = #2 (c:SparcCells.cellset)
	     fun cellset((r,_),f) = (r,f))

  functor FloatRa =
    RegAllocator
       (structure RaArch = struct
	   structure InsnProps = P
	   structure AsmEmitter = Asm
	   structure I = I
	   structure Liveness=FregLiveness

 	   val defUse = P.defUse C.FP
	   val firstPseudoR = 32
	   val maxPseudoR = SparcCells.maxCell 
	   val numRegs = SparcCells.numCell SparcCells.FP
	   fun regSet c = #2 (c:SparcCells.cellset)
	end)
end

(*
 * $Log$
 *)

root@smlnj-gforge.cs.uchicago.edu
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