[PATCH][GCC][ARM] Dot Product NEON intrinsics [Patch (3/8)]

[Tamar Christina]

Hi All,

This patch adds the NEON intrinsics for Dot product.

Dot product is available from ARMv8.2-a and onwards.

Regtested on arm-none-eabi, armeb-none-eabi,
aarch64-none-elf and aarch64_be-none-elf with no issues found.

Ok for trunk?

gcc/
2017-11-06  Tamar Christina  <tamar.christina@arm.com>

	* config/aarch64/arm_neon.h (vdot_u32, vdotq_u32)
	(vdot_s32, vdotq_s32): New.
	(vdot_lane_u32, vdotq_lane_u32): New.
	(vdot_lane_s32, vdotq_lane_s32): New.


gcc/testsuite/
2017-11-06  Tamar Christina  <tamar.christina@arm.com>

	* gcc.target/arm/simd/vdot-compile.c: New.
	* gcc.target/arm/simd/vect-dot-qi.h: New.
	* gcc.target/arm/simd/vect-dot-s8.c: New.
	* gcc.target/arm/simd/vect-dot-u8.c: New

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