The reassoc running flag wasn't necessary in new reassoc versions
anyway.

Just state the copyright and the project the files belong to. You can
then find the COPYING file for the whole project.

We just define that the only reason a Load/Store node can use the
exception edge is a NULL pointer. Misaligned Load/Store is a problem for
low-level languages which don't use exception edges anyway.

We simply always assume that Sel can only return a null pointer if
its input is a null pointer.

this is part of the initiative to move object-orientation support stuff
out of libfirm into liboo

[r28021]

[r28017]

[r27988]

[r27277]

  an optimization should be decided simply on wether the frontend calls
  it or not.

[r26798]

- Introduce the concept of the graph state bitset: This is a set of flags that indicate the current "state" of a graph.
  (Used so far to indicate wether muxes are lowered and should not be touched anymore and wether architecture dependent mul and div with constant implementations are used)
  We should use this to indicate dom/loop/... consistency in the fututure
- fixed a bug where lower_mode_b was creating a "set" instruction with the help of a Mux. (Maybe we should create a new Node for this and not use a 0/1 mux?)

[r25937]

- changed handling of Mux nodes: these are now optimized using the iropt instead of additional runs in the if-conv
if-conv:
- through away analysis info only when graph was changed
- fixed handling of Raise
- removed useless dominator computation
- add some docu

[r25901]

[r22411]

[r22352]

[r20025]

the problems ...

[r17813]

Currently this option allows x-c -> x + (-c) for unsigned.
If this option is enabled, we cannot do liner function test replacement ...

So, enable it AFTER OSR has run...

[r17804]

[r17143]

[r16573]

- fixed wrong condition in iropt.c

[r15896]

Add a reassoc_running flag used to disable some local optimizations only while reassoc is running (to prevent endless loops)

[r15895]

[r15696]

[r14942]

[r13522]

[r8498]

[r8010]

and fix the code (Syncs were not extended)

[r7862]

[r7490]

typos fixed, enhanced doxygen documentation

[r7309]

[r7240]

[r7190]

[r6963]

[r6950]