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Array types are not compound types, but segment types are.

Just use 'get_compound_{ident,name}()' instead.

The array type is fine, because it is the containing type, which is used for TBAA.
This partially reverts commit 1786345c.

- The basic functions are written in a way to allow arbitrary sized
  objects in the queue.
- Toplevel control structures are kept separate from the queue. This
  simplifies the implementation, frees 2 pointers for each data block
  and allows to free the initial block as soon as it is not needed anymore.
- Implementation is no longer publicly exposed. We should get out of the
  business of exporting abstract data types. We had no outside users of
  pdeq as far as I can see.
- Implement double ended queues with pointers with convenience
  functions.
- deq_foreach_pointer() construct to iterate over all pointers in a
  deq_t. This was missing from pdeq and led some people to use the
  inefficient plist.

The executables are no longer removed when the unittest fails.

After spilling this is done in the backend.

This unbreaks the backend option 'profilegenerate'.

This partially unbreaks the backend option 'profilegenerate'.

It was only used by the class casst optimization, which was removed almost four years ago.

Just check that the size of the array is 0 instead.

'align_all' always is at least 1.

Shifting into the sign bit is undefined behavior, see ISO C99 6.5.7(4).

Let's hope noone inserts new builtin kinds in the middle.

The other case loads a global constant.

This fixes backend/mux_long_double.c.

Additionally it is subsumed by 'SETCC_TR_LEAxx' anyway.