Liebe bugs part1: Eor(1, Proj(Cmp)) was broken - simply remove the optimisation since Eor(1, X) gets transformed to Not anyway and Not(Cmp) gets optimized

[r26913]

[r26910]

- There's a new type_dbg_info* that allows you to attach debug names to types
- get_type_name and get_type_ident are now more. The new ir_print_type
  and the usual ir_printf("%+F", type) help in most usage cases.
  But you should be aware that names are not guaranteed to be unique anymore
  (or positively said: You don't have no trouble anymore building unique names
   in code that creates types)
- No need to specify mode for new pointer types anymore (you can still do it
  with set_type_mode)

[r26909]

[r26904]

 - the upper block must dominate the block, else we cannot fuse
   upper and lower block

[r26899]

- place new constructed code into the right block, which might
  be neither the block of any Cmp
- only the <null, null> test can have different operands, all others
  must have one common op in both compares

- remove the meaningless <null, null> message

[r26898]

[r26897]

[r26896]

[r26895]

[r26890]

[r26885]

[r26883]

Allow the modulo-shift setting for reference modes. This is a work-around that fixes find_unsigned_mode().

[r26882]

[r26880]

(there is retrieve_dbginfo stuff already there! And don't tell me about possible
 future extensions where sets of locations are merged and someone generates
 usefull debug info from that. Noone uses this currently!)

[r26878]

- fixed a lot of comments

[r26877]

[r26876]

[r26875]

[r26874]

[r26873]

- fixed path compression
- use debug output instead of fprintf

[r26872]

- added missing Phi-check
- added missing path compression
- do not add bad nodes, as these no not reduce the number of block inputs
- add doxygen comments

[r26871]

[r26869]

[r26868]

- inside irg_verify() call irn_verify_irg(), not irn_verify() (which is disabled if DEBUG_libfirm is not set)
- small BugFix: output the right graph in error message

[r26867]

[r26866]

- adapt to firm coding conventions even more

[r26865]

[r26864]

[r26862]

[r26860]

[r26857]

[r26856]

[r26854]

[r26851]

[r26849]

[r26848]

[r26832]

[r26831]

[r26830]

[r26829]