Remove unnecessary dependency edge from the IncSP, which destroys the stack frame, to the final memory Proj.  Most probably it is unnecessary since Projs are not scheduled anymore.

[r21370]

[r21369]

[r21368]

  mode_X out edge. This is wrong in phase backend AND might be wrong if
  start block has a keep-alive (which should not happen normally)
- fix_start_proj() speed up implementation
- add comment that fix_start_proj() is only needed in a really rare case
  ...
- add out edge verifier

[r21367]

- no need to add a keep-alive edge if block input is Bad
- report fused blocks
- report removed block inputs

[r21366]

[r21365]

[r21364]

[r21363]

[r21362]

[r21360]

[r21358]

[r21352]

[r21349]

[r21344]

[r21325]

[r21324]

[r21323]

[r21322]

[r21321]

[r21317]

[r21315]

[r21314]

 - fixed dominance frontier IF walking the whole block upwards
 - simplified code
 - hopefully better explanation how the frontier is calculated

[r21312]

It looks strange, but icc and gcc can do it.

[r21311]

be_Perm_reduce: no need to allocate a temporary array on the irg's obstack, set_in_in() creates a new one

[r21310]

[r21309]

[r21307]

[r21304]

[r21303]

Rename arch_register_req_type_should_be_different to the more appropriate arch_register_req_type_must_be_different.

[r21302]

[r21301]

When transforming an ASM "same"-constraint, copy the requirements from the other constraint, so at least we have a chance to generate correct code.

[r21300]

[r21297]

[r21294]

[r21291]

[r21281]

[r21270]

[r21263]

- first support for statistics

[r21261]

[r21260]