GHC.StgToCmm.Layout

emitCall conv fun args makes a call to the entry-code of fun, using the call/return convention conv, passing args, and returning the results to the current sequel.

Return multiple values to the sequel

If the sequel is Return

    return (x,y)

If the sequel is AssignTo [p,q]

   p=x; q=y;

Used to tell the various mkVirtHeapOffsets functions what kind of header the object has. This will be accounted for in the offsets of the fields returned.

Just like mkVirtHeapOffsets, but for constructors

Just like mkVirtConstrOffsets, but used when we don't have the actual arguments. Useful when e.g. generating info tables; we just need to know sizes of pointer and non-pointer fields.