[r26492]

[r26491]

[r26489]

[r26488]

[r26487]

- removed printf

[r26485]

[r26484]

[r26483]

[r26480]

[r26478]

[r26477]

[r26476]

[r26475]

[r26473]

[r26472]

[r26471]

[r26470]

[r26468]

Create clean register requirements for Phis, otherwise reg_reqs_equal() and maybe others could get confused. It is unknown whether this caused any problems.

[r26467]

[r26465]

[r26464]

[r26461]

[r26460]

- improve block scheduling heuristic by deciding a priori which edge is the fall-through leaving a loop
- remove old extbb block scheduler

[r26459]

[r26458]

[r26453]

first occuring class (op(a,a) or op(a,b)), touch all and split the
touched list into halfs.
This should fix fehler170.c and is more logical and simpler code.

[r26446]

[r26444]

[r26440]

[r26438]

[r26437]

[r26429]

[r26427]

[r26424]

[r26423]

[r26422]

[r26421]

[r26420]

[r26419]

[r26416]