[AArch64][PATCH 3/7] Add builtins for ARMv8.1 Adv.SIMD,instructions.

[Matthew Wahab]

The ARMv8.1 architecture extension adds two Adv.SIMD instructions,
sqrdmlah and sqrdmlsh. This patch adds the GCC builtins to generate the new
instructions which are needed for the NEON intrinsics added later in
this series.

Tested the series for aarch64-none-linux-gnu with native bootstrap and
make check on an ARMv8 architecture. Also tested aarch64-none-elf with
cross-compiled check-gcc on an ARMv8.1 emulator.

Ok for trunk?
Matthew

gcc/
2015-10-23  Matthew Wahab  <matthew.wahab@arm.com>

	* config/aarch64/aarch64-simd-builtins.def
	(sqrdmlah, sqrdmlsh): New.
	(sqrdmlah_lane, sqrdmlsh_lane): New.
	(sqrdmlah_laneq, sqrdmlsh_laneq): New.

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