Hello

One of the review comments for the v8.1 atomics patches was that the
iterators and unspec declarations should be moved out of the atomics.md
file (https://gcc.gnu.org/ml/gcc-patches/2015-09/msg01375.html).

The iterators in atomics.md are tied to the unspecv definition in the
same file. This patch moves both into iterators.md.

Tested aarch64-none-elf with cross-compiled check-gcc and
aarch64-none-linux-gnu with native bootstrap and make check.

Ok for trunk?
Matthew

gcc/
2015-11-02  Matthew Wahab  <matthew.wahab@arm.com>

	* config/aarch64/atomics.md (unspecv): Move to iterators.md.
	(ATOMIC_LDOP): Likewise.
	(atomic_ldop): Likewise.
	* config/aarch64/iterators.md (unspecv): Moved from atomics.md.
	(ATOMIC_LDOP): Likewise.
	(atomic_ldop): Likewise.