aarch64: Allow moves after tied-register intrinsics

aarch64: Allow moves after tied-register intrinsics

Some ACLE intrinsics map to instructions that tie the output
operand to an input operand.  If all the operands are allocated
to different registers, and if MOVPRFX can't be used, we will need
a move either before the instruction or after it.  Many tests only
matched the "before" case; this patch makes them accept the "after"
case too.

gcc/testsuite/
	* gcc.target/aarch64/advsimd-intrinsics/bfcvtnq2-untied.c: Allow
	moves to occur after the intrinsic instruction, rather than requiring
	them to happen before.
	* gcc.target/aarch64/advsimd-intrinsics/bfdot-1.c: Likewise.
	* gcc.target/aarch64/advsimd-intrinsics/vdot-3-1.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/adda_f16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/adda_f32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/adda_f64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/brka_b.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/brkb_b.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/brkn_b.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/clasta_bf16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/clasta_f16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/clasta_f32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/clasta_f64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/clastb_bf16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/clastb_f16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/clastb_f32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/clastb_f64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/pfirst_b.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/pnext_b16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/pnext_b32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/pnext_b64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/pnext_b8.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sli_s16.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sli_s32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sli_s64.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sli_s8.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sli_u16.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sli_u32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sli_u64.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sli_u8.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sri_s16.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sri_s32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sri_s64.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sri_s8.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sri_u16.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sri_u32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sri_u64.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/sri_u8.c: Likewise.