X86.Regs

Documentation

virtualRegSqueeze :: RegClass -> VirtualReg -> Int

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.

realRegSqueeze :: RegClass -> RealReg -> Int

data Imm

Constructors

ImmInt Int

ImmInteger Integer

ImmCLbl CLabel

ImmLit SDoc

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

:: DynFlags

-> Int

desired stack offset in bytes, positive or negative

-> AddrMode

argRegs :: RegNo -> [Reg]

allArgRegs :: Platform -> [(Reg, Reg)]

allIntArgRegs :: Platform -> [Reg]

callClobberedRegs :: Platform -> [Reg]

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

instrClobberedRegs :: Platform -> [Reg]

allMachRegNos :: Platform -> [RegNo]

The complete set of machine registers.

classOfRealReg :: Platform -> 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]

eax :: Reg

ebx :: Reg

ecx :: Reg

edx :: Reg

esi :: Reg

edi :: Reg

ebp :: Reg

esp :: Reg

fake0 :: Reg

fake1 :: Reg

fake2 :: Reg

fake3 :: Reg

fake4 :: Reg

fake5 :: Reg

firstfake :: RegNo

rax :: Reg

rbx :: Reg

rcx :: Reg

rdx :: Reg

rsi :: Reg

rdi :: Reg

rbp :: Reg

rsp :: Reg

r8 :: Reg

r9 :: Reg

r10 :: Reg

r11 :: Reg

r12 :: Reg

r13 :: Reg

r14 :: Reg

r15 :: Reg

xmm0 :: Reg

xmm1 :: Reg

xmm2 :: Reg

xmm3 :: Reg

xmm4 :: Reg

xmm5 :: Reg

xmm6 :: Reg

xmm7 :: Reg

xmm8 :: Reg

xmm9 :: Reg

xmm10 :: Reg

xmm11 :: Reg

xmm12 :: Reg

xmm13 :: Reg

xmm14 :: Reg

xmm15 :: Reg

xmm :: RegNo -> Reg

ripRel :: Displacement -> AddrMode

allFPArgRegs :: Platform -> [Reg]

allocatableRegs :: Platform -> [RealReg]