Displaying 3 results from an estimated 3 matches for "sum0_s32x4".
2016 Jul 14
0
[PATCH 2/5] Optimize fixed-point celt_fir_c() for ARM NEON
...+ vst1_s16(rnum+i, vrev64_s16(vld1_s16(num+ord-i-4)));
+ for (;i<ord;i++)
+ rnum[i] = num[ord-i-1];
+ rnum[ord] = rnum[ord+1] = rnum[ord+2] = 0;
+ (void)arch;
+
+#ifdef SMALL_FOOTPRINT
+ for (i=0;i<N-7;i+=8)
+ {
+ int16x8_t x_s16x8 = vld1q_s16(_x+i);
+ int32x4_t sum0_s32x4 = vshll_n_s16(vget_low_s16 (x_s16x8), SIG_SHIFT);
+ int32x4_t sum1_s32x4 = vshll_n_s16(vget_high_s16(x_s16x8), SIG_SHIFT);
+ for (j=0;j<ord;j+=4)
+ {
+ const int16x4_t rnum_s16x4 = vld1_s16(rnum+j);
+ x_s16x8 = vld1q_s16(x+i+j+0);
+ sum0_s32x4 = vmlal_lane_...
2016 Jun 17
5
ARM NEON optimization -- celt_fir()
Hi all,
This is Linfeng Zhang from Google. I'll work on ARM NEON optimization in the
next few months.
I'm submitting 2 patches in the following couple of emails, which have the new
created celt_fir_neon().
I revised celt_fir_c() to not pass in argument "mem" in Patch 1. If there are
concerns to this change, please let me know.
Many thanks to your comments.
Linfeng Zhang
2016 Jul 14
6
Several patches of ARM NEON optimization
I rebased my previous 3 patches to the current master with minor changes.
Patches 1 to 3 replace all my previous submitted patches.
Patches 4 and 5 are new.
Thanks,
Linfeng Zhang