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2015 Nov 23
1
[Aarch64 v2 05/18] Add Neon intrinsics for Silk noise shape quantization.
...smull.2d v4, v0, v3
0000000000000078 smlal2.2d v4, v0, v3
000000000000007c smlal.2d v4, v1, v2
0000000000000080 smlal2.2d v4, v1, v2
0000000000000084 ext.16b v2, v4, v4, #8
0000000000000088 add d2, d4, d2
000000000000008c sshr d2, d2, #16
0000000000000090 fmov w0, s2
0000000000000094 stp q0, q1, [x1]
0000000000000098 ret
(Non-vectorized code for non-order-8 omitted.)
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2015 Nov 20
2
[Aarch64 00/11] Patches to enable Aarch64
> On Nov 19, 2015, at 5:47 PM, John Ridges <jridges at masque.com> wrote:
>
> Any speedup from the intrinsics may just be swamped by the rest of the encode/decode process. But I think you really want SIG2WORD16 to be (vqmovns_s32(PSHR32((x), SIG_SHIFT)))
Yes, you?re right. I forgot to run the vectors under qemu with my previous version (oh, the embarrassment!) Fixed forthcoming