[r27101]

This uses the vrp information to evaluate int projs.
This optimizes cases like:
x |= 33;
y = x & 96;
to y = 1;

[r27100]

This uses the vrp information to expand the handling for constants to
handling ranges as well.

[r27098]

This adds some basic optimizations, e.g. to calculate the value for some
nodes if it can be determined.

[r27097]

This commit adds the basic analysis needed to derive vrp information. It
should not run infinetely, but there may be border cases.
There might be error conditions for which there are no checks yet.
Also, a lot of the derivations can still be improved.

[r27096]

This commit adds the code and prototypes for dumping vrp information

[r27095]

This commit adds the neccessary attributes to each ir_node. It also adds
the initialization code and some prototypes for the graph_pass and some
support functions.

[r27094]

[r27093]

[r27092]

[r27091]

[r27090]

[r27088]

cleanup rework and extend statev_sql.py; it should be faster now and has a new mode to append results to an existing DB

[r27086]

[r27083]

[r27082]

[r27079]

- test for t ==1 AFTER f == 0: this fixes fehler035.c
- disable sbb creation: reloader might change the cmp instruction yet

[r27078]

[r27077]

[r27076]

[r27075]

[r27064]

[r27063]

[r27062]

[r27061]

[r27060]

[r27058]

[r27057]

a new garbage collection pass less conservative than gc_irgs (but does not respect properties of object-oriented programs)

[r27056]

[r27055]

[r27054]

New setcc framework can handle all mux_is_abs(..., Const, Const) using set and up to 3 instructions ...

[r27053]

[r27052]

[r27048]

[r27046]

[r27045]

[r27044]

[r27042]

  clumsy. Bring back get_entity_visibility and set_entity_visibility

[r27039]

[r27037]

[r27036]