[r19739]

- removed arch_irn_handler stuff

[r19738]

[r19733]

greater function...

[r19732]

[r17143]

- Remove !in and arch_register_req_type_should_be_different_from_all.
- Specify the output constraints of ia32 ShlD and ShrD more accurately as in_r1 !in_r2 !in_r3 instead of !in. This usually saves the fourth register.

[r16320]

[r16009]

[r15969]

Allow two should-be-same constraints for every out register. This is useful for commutative nodes on two address code machines (i.e. x86).

[r15953]

[r15856]

[r14604]

[r14240]

[r13871]

[r13700]

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

[r13523]

[r13508]

- Started working on flags

[r12716]

[r12646]

- more work on state registers for x87 fpu rounding modes

- Replace limit callback in register requirements with a simple bitset
- Fix backends, generators and the rest of the code for the change register
  requirements structure
- Eliminated the custom register_requirement structures in the backend, they
  are pointless now, use the normal arch_register_req_t
- Fix TEMPLATE backend
- Extract emitter framework from ia32 and provide generic header/code for it
- Port TEMPLATE backend to new emitter
- Extract gas specific emit stuff (declarations, sections) from ia32 backend
  and provide it as generic header/code. Make TEMPLATE backend use that
- Remove several FIRM_DBG_REGISTERs from functions which are called very often.
  Before we had millions of string hashtable lookups because of that. The
  prefered way is to have 1 static debug module per file and initialize it in
  the module constructor. No passing around in environment structs and in no
  case should you dynamically register it in single functions.

fixed comments
fixed indents

- Make ia32_Push and ia32_Pop return their stackpointer adjustment
- replaced stack_dir enum + unsigned offsets with normal integer offsets
- make schedule verifier detect dead nodes in schedule

blocks or loops). Other small changes:

* Added some verify functions that check for register pressure or valid schedules (replaces the broken check_pressure in bechordal_main.c)
* Some style/readability improvements to the belady spill code
* Some style/readability improvements to beuses.*
* Fixed registerpressure stat dumper
* Some improvements to bespill.c: When spilling already reloaded values, don't add a 2nd spill.

memory operands

Fixed a buf in ABI stack pointer handling