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The following get_tarval_long(tv) has the same assertion internally.

It is barely used but cross cuts into most libfirm components and
therefore isn't maintenance free.

The statev framework stays obviously.

Maybe we should also rename "opt" to "trans" in the future...

The Conv might result in a sign extend that produces additional one
bits.

This fixes opt/fehler303.c.

This accidentally fixes backend/ia32_conv.c.

This fixes opt/fehler302.c.

This allows to optimize conversion like Iu -> Lu -> F.

Properly use get_irn_pinned/set_irn_pinned as bool value instead of
comparing setting the ir_op enum values.

There is no node left that uses it.

This fixes opt/fehler298.c.

Otherwise, the code would be broken.

This fixes opt/fehler299.c.

The optimization does not work properly for relation_true and relation_false.

This fixes several test on ARM.

Victor Pfautz authored Dec 22, 2014 and yb9976 committed Jun 01, 2015

-(a & (-a)) -> a | (-a)
-(a | (-a)) -> a & (-a)

The optimization was disabled by 8e35902f.

This fixes opt/minus_zero.c.

Strange casts may cause that a Load ends up with a method entity to load from.

This prevented optimizing x < 0 ? -1 : 0, when the result is unsigned.

The same test is done by an enclosing if.