ghc-8.4.1.20180329: The GHC API

Safe HaskellNone
LanguageHaskell2010

X86.Regs

Synopsis

Documentation

virtualRegSqueeze :: RegClass -> VirtualReg -> Int Source #

regSqueeze_class reg Calculate 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 

spRel Source #

Arguments

:: DynFlags 
-> Int

desired stack offset in bytes, 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 -> RegClass Source #

Take the class of a register.

showReg :: Platform -> RegNo -> String Source #

Get the name of the register with this number.

ripRel :: Displacement -> AddrMode Source #