[r26317]

cleanup backend: make pre_spill_prepare_constraint independent of chordal allocator structures (and rework it a bit in the process)

[r26304]

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

[r26236]

	Node flags and node registers are stored in a generic backend_info struct now
	instead of every part of the backend doing custom (and slow) stuff

[r23142]

[r22894]

[r22794]

[r22754]

[r22727]

Remove the unused parameter const arch_env_t *env from arch_irn_get_flags(), arch_irn_is() and arch_irn_consider_in_reg_alloc().

[r22706]

[r22699]

[r22697]

Remove the unused parameter const arch_env_t *env from arch_get_irn_reg_class() and arch_irn_has_reg_class().

[r22692]

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]

[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]

[r17143]

[r16417]

[r15733]

[r15032]

Fixed a bug in liveness

[r14701]

[r14698]

[r14693]

[r14557]

  - The liveness in the birg stays always the same
  - Invalidation is done with be_liveness_invalidate()
  - Each algo has to specify if it needs only liveness checks
      be_liveness_assure_chk()
    or the complete liveness sets for use with be_lv_foreach, etc.
      be_liveness_assure_sets()

* Adapted all the files to these changes
* made bessadestr.c liveness updating

[r14506]

  - it uses the new liveness checking algos in ana/irlivechk.h
  - value_dominates, etc. was erased from bera.h because it does not belong there

* bechordal.c features an experimental coloring (by defualt disabled by macro)
  which can color the routine in a single pass without building the "borders".
  A long term goal is to disable borders completely but they are used in other
  places, too.

* The 1st parameter of values_interfere is now a birg and not a be_lv_t. There
  is now a special routine lv_values_interfere() for those who want to use the
  computed liveness explicitly. changing the parameter makes it more easy to
  switch to other liveness implementations.

All other files were modified to respect the changes

[r13762]

unified .h #ifndef ... #define ...
changed some indenting
removed some unused code
removed beuses_t.h as unused header

[r13559]

fixed include structure (files should include all needed headers - not more and not less)

[r13523]

[r13508]

- Started working on flags

[r12716]

- refactored backend to store some analysis info about the irg in the be_irg structure, added assure_ and invalidate_ functions for this

  walking occurs before finish phase now
- changed ia32 to do some things transforms from finish phase in after_ra phase
  already but do peephole optimization in finish phase.
- Added a peephole optimisation that transform IncSP,Store cascades to
  Pushs
- Replaced several HASH_PTR with nodeset_hash to make compiler more
  deterministic.

added convienience macro for checking against a certain irn class

Added becopyheur3 (need to compile firm with --enable-jvm)