• Ben.Lippmeier@anu.edu.au's avatar
    NCG: Refactor representation of code with liveness info · e17cf7ff
    Ben.Lippmeier@anu.edu.au authored
     * I've pushed the SPILL and RELOAD instrs down into the
       LiveInstr type to make them easier to work with. 
    
     * When the graph allocator does a spill cycle it now just
       re-annotates the LiveCmmTops instead of converting them 
       to NatCmmTops and back. 
    
     * This saves working out the SCCS again, and avoids rewriting
       the SPILL and RELOAD meta instructions into real machine
       instructions.
    e17cf7ff
SpillClean.hs 14.3 KB