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|
-- | Hard wired things related to registers.
-- This is module is preventing the native code generator being able to
-- emit code for non-host architectures.
--
-- TODO: Do a better job of the overloading, and eliminate this module.
-- We'd probably do better with a Register type class, and hook this to
-- Instruction somehow.
--
-- TODO: We should also make arch specific versions of RegAlloc.Graph.TrivColorable
module TargetReg (
targetVirtualRegSqueeze,
targetRealRegSqueeze,
targetClassOfRealReg,
targetMkVirtualReg,
targetWordSize,
targetRegDotColor,
targetClassOfReg
)
where
#include "HsVersions.h"
import Reg
import RegClass
import Size
import CmmExpr (wordWidth)
import Outputable
import Unique
import FastTypes
#if i386_TARGET_ARCH || x86_64_TARGET_ARCH
import qualified X86.Regs as X86
import qualified X86.RegInfo as X86
#elif powerpc_TARGET_ARCH
import qualified PPC.Regs as PPC
import qualified PPC.RegInfo as PPC
#elif sparc_TARGET_ARCH
import qualified SPARC.Regs as SPARC
#else
#error "RegAlloc.Graph.TargetReg: not defined"
#endif
-- x86 -------------------------------------------------------------------------
#if i386_TARGET_ARCH || x86_64_TARGET_ARCH
targetRegClasses :: Reg -> [RegClass]
targetRegClasses = X86.regClasses
targetRegSupportsClass :: Reg -> RegClass -> Bool
targetRegSupportsClass = X86.regSupportsClass
targetWordSize :: Size
targetWordSize = intSize wordWidth
targetMkVReg :: Unique -> Size -> Reg
targetMkVReg = X86.mkVReg
targetRegDotColor :: Reg -> SDoc
targetRegDotColor = X86.regDotColor
-- ppc -------------------------------------------------------------------------
#elif powerpc_TARGET_ARCH
targetRegClasses :: Reg -> [RegClass]
targetRegClasses = PPC.regClasses
targetRegSupportsClass :: Reg -> RegClass -> Bool
targetRegSupportsClass = PPC.regSupportsClass
targetWordSize :: Size
targetWordSize = intSize wordWidth
targetMkVReg :: Unique -> Size -> Reg
targetMkVReg = PPC.mkVReg
targetRegDotColor :: Reg -> SDoc
targetRegDotColor = PPC.regDotColor
-- sparc -----------------------------------------------------------------------
#elif sparc_TARGET_ARCH
targetVirtualRegSqueeze :: RegClass -> VirtualReg -> FastInt
targetVirtualRegSqueeze = SPARC.virtualRegSqueeze
targetRealRegSqueeze :: RegClass -> RealReg -> FastInt
targetRealRegSqueeze = SPARC.realRegSqueeze
targetClassOfRealReg :: RealReg -> RegClass
targetClassOfRealReg = SPARC.classOfRealReg
-- | Size of a machine word.
-- This is big enough to hold a pointer.
targetWordSize :: Size
targetWordSize = intSize wordWidth
targetMkVirtualReg :: Unique -> Size -> VirtualReg
targetMkVirtualReg = SPARC.mkVirtualReg
targetRegDotColor :: RealReg -> SDoc
targetRegDotColor = SPARC.regDotColor
--------------------------------------------------------------------------------
#else
#error "RegAlloc.Graph.TargetReg: not defined"
#endif
targetClassOfReg :: Reg -> RegClass
targetClassOfReg reg
= case reg of
RegVirtual vr -> classOfVirtualReg vr
RegReal rr -> targetClassOfRealReg rr
|
