RegAlloc.Graph.Main

ghc-7.0.4: The GHC API

RegAlloc.Graph.Main

Description

Graph coloring register allocator.

TODO: The colors in graphviz graphs for x86_64 and ppc could be nicer.

Synopsis

- regAlloc :: (Outputable instr, Instruction instr) => DynFlags -> UniqFM (UniqSet RealReg) -> UniqSet Int -> [LiveCmmTop instr] -> UniqSM ([NatCmmTop instr], [RegAllocStats instr])

# Documentation

regAlloc

Arguments

:: (Outputable instr, Instruction instr) |
=> DynFlags |
-> UniqFM (UniqSet RealReg) | the registers we can use for allocation
-> UniqSet Int | the set of available spill slots.
-> [LiveCmmTop instr] | code annotated with liveness information.
-> UniqSM ([NatCmmTop instr], [RegAllocStats instr]) | code with registers allocated and stats for each stage of allocation

The top level of the graph coloring register allocator.