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(* alphaRegAlloc.sml --- alpha 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 AlphaRegAlloc(structure I : INSTRUCTIONS where C = AlphaCells
structure P : INSN_PROPERTIES where I = I
structure F : FLOWGRAPH where I = I
structure Asm : INSTRUCTION_EMITTER
where I = I and P = F.P) :
sig
functor IntRa (structure RaUser : RA_USER_PARAMS
where I = I
where type B.name = F.B.name
(* should be: where I = I -- bug 1205 *)) : RA
functor FloatRa (structure RaUser : RA_USER_PARAMS
where I = I
where type B.name = F.B.name
(* should be: where I = I *)) : RA
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
val regSet = C.getCell C.GP
val cellset = C.updateCell C.GP)
(* integer register allocator *)
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 = AlphaCells.maxCell
val numRegs = AlphaCells.numCell AlphaCells.GP
val regSet = C.getCell C.GP
end)
(* liveness analysis for floating point registers *)
structure FregLiveness =
Liveness(structure Flowgraph=F
structure Instruction=I
val defUse = P.defUse C.FP
val regSet = C.getCell C.FP
val cellset = C.updateCell C.FP)
(* floating register allocator *)
functor FloatRa =
RegAllocator
(structure RaArch = struct
structure InsnProps = P
structure AsmEmitter = Asm
structure Liveness=FregLiveness
structure I = I
val defUse = P.defUse C.FP
val firstPseudoR = 64
val maxPseudoR = AlphaCells.maxCell
val numRegs = AlphaCells.numCell AlphaCells.FP
val regSet = C.getCell C.FP
end)
end
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