ghc-7.4.1: The GHC API

Safe HaskellSafe-Infered

X86.Regs

Synopsis

Documentation

virtualRegSqueeze :: RegClass -> VirtualReg -> FastInt

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.

realRegSqueeze :: RegClass -> RealReg -> FastInt

data Imm

Constructors

ImmInt Int 
ImmInteger Integer 
ImmCLbl CLabel 
ImmLit Doc 
ImmIndex CLabel Int 
ImmFloat Rational 
ImmDouble Rational 
ImmConstantSum Imm Imm 
ImmConstantDiff Imm Imm 

strImmLit :: String -> Imm

litToImm :: CmmLit -> Imm

data AddrMode

Constructors

AddrBaseIndex EABase EAIndex Displacement 
ImmAddr Imm Int 

addrOffset :: AddrMode -> Int -> Maybe AddrMode

spRel

Arguments

:: Platform 
-> Int

desired stack offset in words, positive or negative

-> AddrMode 

argRegs :: RegNo -> [Reg]

allArgRegs :: [Reg]

callClobberedRegs :: [Reg]

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

allMachRegNos :: [RegNo]

The complete set of machine registers.

classOfRealReg :: RealReg -> RegClass

Take the class of a register.

showReg :: Platform -> RegNo -> String

Get the name of the register with this number.

data EABase

Constructors

EABaseNone 
EABaseReg Reg 
EABaseRip 

data EAIndex

Constructors

EAIndexNone 
EAIndex Reg Int 

addrModeRegs :: AddrMode -> [Reg]

fake0, edi, esi, ebp, esp, edx, ecx, ebx, eax, fake5, fake4, fake3, fake2, fake1 :: Reg

firstfake :: RegNo

rax, xmm15, xmm14, xmm13, xmm12, xmm11, xmm10, xmm9, xmm8, xmm7, xmm6, xmm5, xmm4, xmm3, xmm2, xmm1, xmm0, r15, r14, r13, r12, r11, r10, r9, r8, rdi, rsi, rbp, rsp, rdx, rcx, rbx :: Reg

xmm :: RegNo -> Reg

ripRel :: Displacement -> AddrMode

allFPArgRegs :: [Reg]

freeReg :: RegNo -> FastBool

globalRegMaybe :: GlobalReg -> Maybe RealReg

allocatableRegs :: [RealReg]