gcc/

	* config/aarch64/aarch64-simd-builtins.def (fmulx): New.
	* config/aarch64/aarch64-simd.md (aarch64_fmulx<mode>): New.
	* config/aarch64/arm_neon.h (vmulx_f32): Rewrite to call fmulx
	builtin.
	(vmulxq_f32): Likewise.
	(vmulx_f64): New.
	(vmulxq_f64): Rewrite to call fmulx builtin.
	(vmulxs_f32): Likewise.
	(vmulxd_f64): Likewise.
	(vmulx_lane_f32): Remove.
	* config/aarch64/iterators.md (UNSPEC): Add fmulx.

gcc/testsuite/

	* gcc/testsuite/gcc.target/aarch64/simd/vmulx_f32_1.c: New.
	* gcc/testsuite/gcc.target/aarch64/simd/vmulx_f64_1.c: New.
	* gcc/testsuite/gcc.target/aarch64/simd/vmulxq_f32_1.c: New.
	* gcc/testsuite/gcc.target/aarch64/simd/vmulxq_f64_1.c: New.
	* gcc/testsuite/gcc.target/aarch64/simd/vmulxs_f32_1.c: New.
	* gcc/testsuite/gcc.target/aarch64/simd/vmulxd_f64_1.c: New.

From-SVN: r229702