ghc-7.0.4: The GHC API

X86.Regs

Synopsis

Documentation

virtualRegSqueeze :: RegClass -> VirtualReg -> FastInt Source

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 Source

data Imm Source

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 Source

litToImm :: CmmLit -> Imm Source

data AddrMode Source

Constructors

AddrBaseIndex EABase EAIndex Displacement
ImmAddr Imm Int

addrOffset :: AddrMode -> Int -> Maybe AddrMode Source

Arguments

:: Int	desired stack offset in words, positive or negative
-> AddrMode

argRegs :: RegNo -> [Reg]Source

allArgRegs :: [Reg]Source

callClobberedRegs :: [Reg]Source

allMachRegNos :: [RegNo]Source

The complete set of machine registers.

classOfRealReg :: RealReg -> RegClass Source

Take the class of a register.

showReg :: RegNo -> String Source

Get the name of the register with this number.

data EABase Source

Constructors

EABaseNone
EABaseReg Reg
EABaseRip

data EAIndex Source

Constructors

EAIndexNone
EAIndex Reg Int

addrModeRegs :: AddrMode -> [Reg]Source

eax :: Reg Source

ebx :: Reg Source

ecx :: Reg Source

edx :: Reg Source

esi :: Reg Source

edi :: Reg Source

ebp :: Reg Source

esp :: Reg Source

fake0 :: Reg Source

fake1 :: Reg Source

fake2 :: Reg Source

fake3 :: Reg Source

fake4 :: Reg Source

fake5 :: Reg Source

firstfake :: RegNo Source

rax :: Reg Source

rbx :: Reg Source

rcx :: Reg Source

rdx :: Reg Source

rsi :: Reg Source

rdi :: Reg Source

rbp :: Reg Source

rsp :: Reg Source

r8 :: Reg Source

r9 :: Reg Source

r10 :: Reg Source

r11 :: Reg Source

r12 :: Reg Source

r13 :: Reg Source

r14 :: Reg Source

r15 :: Reg Source

xmm0 :: Reg Source

xmm1 :: Reg Source

xmm2 :: Reg Source

xmm3 :: Reg Source

xmm4 :: Reg Source

xmm5 :: Reg Source

xmm6 :: Reg Source

xmm7 :: Reg Source

xmm8 :: Reg Source

xmm9 :: Reg Source

xmm10 :: Reg Source

xmm11 :: Reg Source

xmm12 :: Reg Source

xmm13 :: Reg Source

xmm14 :: Reg Source

xmm15 :: Reg Source

xmm :: RegNo -> Reg Source

ripRel :: Displacement -> AddrMode Source

allFPArgRegs :: [Reg]Source

freeReg :: RegNo -> FastBool Source

globalRegMaybe :: GlobalReg -> Maybe RealReg Source

allocatableRegs :: [RealReg]Source

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