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This tries to get the names in a consistent format. We basically have 2
views on register allocation/constraints now:

1) Register Requirements and Assigments are per-instruction. Each
   instruction has requirements on its inputs and outputs, register get
   assigned for outputs of an instruction (assignment is an attribute of
   an instruction, not of the Proj-nodes).
   The internal datastructures model this form!

   The functions here have the form:
     arch_get_irn_register_req_in(node, input_nr)
     arch_get_irn_register_in(node, input_nr)
     arch_get_irn_register_req_out(node, output_nr)
     arch_set_irn_register_out(node, output_nr, register)

2) Register Requirements and Assignments are on firm-values. This view
   allows to query/assign requirements and registers at the Proj nodes
   instead of the repsective predecessors.
   This is a convenience interface modeled on top of the other!

   The functions have the form:
     arch_get_irn_register_req(node)
     arch_get_irn_register(node)
     arch_set_irn_register(node, register)

[r28037]

[r28020]

[r27692]

[r27691]

[r27277]

- cleanup ir_spec generation a bit

[r27251]

[r27153]

[r26648]

[r26535]

[r26317]

[r26280]

[r26239]

- SymConst's are now ALWAYS placed in the start block

[r26236]

[r26080]

simply kill the pins in besched phase, everything is scheduled anyway, while moving Pins around doesn't work in all situations

[r25289]

[r24449]

[r24423]

[r22754]

[r22722]

[r22699]

[r22697]

[r22563]

Good day and welcome to the FIRM XMALLOC*() macros.  These macros are provided for the type safety and convenience of the IPD research facility personnel.  The time is 15:32.  Check xmalloc.h for details.

[r22494]

[r21148]

Reroute End-keep edges when creating critical edges during block scheduling (i.e. the removed block is the End-kept block of an endless loop).

[r20924]

[r20885]

[r20121]

[r19740]

- removed obstack from be_main_env_t, it was only used to allocate one arch_env, which is now part of the environment itself
- removed unused static variable
- add (yet unfunctional) -b gprof switch
- renamed printev into more logical filtev
- some docu added

[r19264]

[r18307]