implemented block scheduling using extended basic blocks locally

renamed blocks to .L

add new 8bit store node

added comments

fixed some bugs
added sub -> neg-add transformation in case OUT==IN2

added conversions

changed name obstack handling

fixed some bugs

lower some benodes
emit some other benodes
implemented frame entity functions

code cleanups
added new magic (register generic functions at op's)

fixed am scale
fixed some minor bugs

added CopyB and CMov (Mux) nodes

removed some cg attributes
fixed nodes attribute order to avoid padding

fixed emit

added alloca node