ghc-7.0.4: The GHC API

SPARC.Regs

Synopsis

- showReg :: RegNo -> String
- virtualRegSqueeze :: RegClass -> VirtualReg -> FastInt
- realRegSqueeze :: RegClass -> RealReg -> FastInt
- classOfRealReg :: RealReg -> RegClass
- allRealRegs :: [RealReg]
- gReg :: Int -> RegNo
- iReg :: Int -> RegNo
- lReg :: Int -> RegNo
- oReg :: Int -> RegNo
- fReg :: Int -> RegNo
- fp :: Reg
- sp :: Reg
- g0 :: Reg
- g1 :: Reg
- g2 :: Reg
- o0 :: Reg
- o1 :: Reg
- f0 :: Reg
- f1 :: Reg
- f6 :: Reg
- f8 :: Reg
- f22 :: Reg
- f26 :: Reg
- f27 :: Reg
- allocatableRegs :: [RealReg]
- argRegs :: RegNo -> [Reg]
- allArgRegs :: [Reg]
- callClobberedRegs :: [Reg]
- mkVirtualReg :: Unique -> Size -> VirtualReg
- regDotColor :: RealReg -> SDoc

# Documentation

showReg :: RegNo -> String Source

Get the standard name for the register with this number.

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

classOfRealReg :: RealReg -> RegClass Source

allRealRegs :: [RealReg]Source

All the allocatable registers in the machine, including register pairs.

gReg :: Int -> RegNo Source

iReg :: Int -> RegNo Source

lReg :: Int -> RegNo Source

Get the regno for this sort of reg

oReg :: Int -> RegNo Source

fReg :: Int -> RegNo Source

fp :: Reg Source

sp :: Reg Source

g0 :: Reg Source

g1 :: Reg Source

Some specific regs used by the code generator.

g2 :: Reg Source

o0 :: Reg Source

o1 :: Reg Source

f0 :: Reg Source

f1 :: Reg Source

f6 :: Reg Source

f8 :: Reg Source

f22 :: Reg Source

f26 :: Reg Source

f27 :: Reg Source

allocatableRegs :: [RealReg]Source

Produce the second-half-of-a-double register given the first half.

All the regs that the register allocator can allocate to, with the the fixed use regs removed.

argRegs :: RegNo -> [Reg]Source

The registers to place arguments for function calls, for some number of arguments.

allArgRegs :: [Reg]Source

All all the regs that could possibly be returned by argRegs

callClobberedRegs :: [Reg]Source

mkVirtualReg :: Unique -> Size -> VirtualReg Source

Make a virtual reg with this size.

regDotColor :: RealReg -> SDoc Source