- removed useless if

[r20708]

[r20707]

[r20706]

 - nodes must be initialized with Top not Bottom
 - right order for mode_X and mode_BB nodes
 - default_compute() assigns now U, R to mode_X nodes
 - cannot handle symconst_addr_name yet
 - compute_Phi() must check the predecessor block for U, because Firm constants live in the start block and are always != Top ...
 - removed the late on_* removement: its assumptions were wrong
 - set the node for newly created IR-nodes

Improvements:
 - ensure reachable End and EndBlock in apply_result()
 - can now replace ProjX(Cond) nodes by Jmp or Bad

Finally runs on Clicks example 3.1 :-)

[r20705]

[r20704]

[r20703]

- add explicit mode_X tarval_unreachable and tarval_reachable tarvals needed for combo
- fixed a doxygen comment

[r20702]

[r20695]

[r20693]

[r20692]

It is not necessary to assert anything about lsmode, if
it isn't used anyways.

[r20683]

[r20678]

- fixed initial state
- simplyfied def_compute()

[r20671]

- fixed gvn-pre comment (not buggy anymore)

[r20665]

[r20664]

[r20656]

[r20653]

[r20650]

[r20649]

[r20648]

[r20647]

[r20645]

- some cosmetic: fix type, removed C++ comments

[r20644]

[r20643]

[r20642]

- BugFix: the effective use block is the predecessor block of the Phi's block, not the block of the Phi's argument
- typos fixed

[r20641]

[r20639]

  so the set of free functions is not calculated right when called the second time
- fixed a typo in the name of a function :-)

[r20638]

[r20634]

[r20631]

[r20630]

- add hash function for ia32 Immediates
- unified comments for all specifications

[r20629]

[r20625]

- add some doxygen comments
- add the hash irop operation

[r20624]

[r20623]

[r20613]

[r20599]

[r20598]

[r20597]

[r20596]