ghc-7.7.20120902: The GHC API

Safe HaskellNone

X86.Regs

Synopsis

Documentation

virtualRegSqueeze :: RegClass -> VirtualReg -> FastIntSource

regSqueeze_class reg Calculuate the maximum number of register colors that could be denied to a node of this class due to having this reg as a neighbour.

data AddrMode Source

Constructors

AddrBaseIndex EABase EAIndex Displacement 
ImmAddr Imm Int 

spRelSource

Arguments

:: Platform 
-> Int

desired stack offset in words, positive or negative

-> AddrMode 

callClobberedRegs :: Platform -> [Reg]Source

these are the regs which we cannot assume stay alive over a C call.

allMachRegNos :: Platform -> [RegNo]Source

The complete set of machine registers.

classOfRealReg :: Platform -> RealReg -> RegClassSource

Take the class of a register.

showReg :: Platform -> RegNo -> StringSource

Get the name of the register with this number.

ripRel :: Displacement -> AddrModeSource