1 // Auto-generated file. Do not edit!
2 // Template: src/x32-transposec/neon-zip.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2021 Google LLC
6 //
7 // This source code is licensed under the BSD-style license found in the
8 // LICENSE file in the root directory of this source tree.
9
10 #include <arm_neon.h>
11
12 #include <assert.h>
13
14 #include <xnnpack/common.h>
15 #include <xnnpack/math.h>
16 #include <xnnpack/transpose.h>
17
xnn_x32_transposec_ukernel__4x4_multi_switch_zip_neon(const uint32_t * input,uint32_t * output,size_t input_stride,size_t output_stride,size_t block_width,size_t block_height)18 void xnn_x32_transposec_ukernel__4x4_multi_switch_zip_neon(
19 const uint32_t* input,
20 uint32_t* output,
21 size_t input_stride,
22 size_t output_stride,
23 size_t block_width,
24 size_t block_height) XNN_OOB_READS
25 {
26 assert(output_stride >= block_height * sizeof(uint32_t));
27 assert(input_stride >= block_width * sizeof(uint32_t));
28
29 const size_t tile_height = 4;
30 const size_t tile_width = 4;
31 const size_t tile_hbytes = tile_height * sizeof(uint32_t);
32 const size_t tile_wbytes = tile_width * sizeof(uint32_t);
33 const size_t input_reset = tile_wbytes - round_down_po2(block_height, tile_height) * input_stride;
34 const size_t input_offset = tile_height * input_stride;
35 const size_t output_reset = tile_width * output_stride - round_down_po2(block_height, 2) * sizeof(uint32_t);
36
37 const uint32_t* i0 = input;
38 const uint32_t* i1 = (const uint32_t*) ((uintptr_t) i0 + input_stride);
39 const uint32_t* i2 = (const uint32_t*) ((uintptr_t) i1 + input_stride);
40 const uint32_t* i3 = (const uint32_t*) ((uintptr_t) i2 + input_stride);
41 uint32_t* o = (uint32_t*) output;
42 const size_t minus_output_stride = -output_stride;
43
44 do {
45 const size_t rem = min(block_width - 1, 3);
46 const size_t oN_stride = rem * output_stride;
47 size_t bh = block_height;
48 for (; bh >= 4; bh -= 4) {
49 const uint32x4_t v2_0 = vld1q_u32(i0); i0 = (uint32_t*) ((uintptr_t) i0 + input_offset);
50 const uint32x4_t v2_1 = vld1q_u32(i1); i1 = (uint32_t*) ((uintptr_t) i1 + input_offset);
51 const uint32x4_t v2_2 = vld1q_u32(i2); i2 = (uint32_t*) ((uintptr_t) i2 + input_offset);
52 const uint32x4_t v2_3 = vld1q_u32(i3); i3 = (uint32_t*) ((uintptr_t) i3 + input_offset);
53
54 const uint32x4x2_t v1_0 = vzipq_u32(v2_0, v2_2);
55 const uint32x4x2_t v1_1 = vzipq_u32(v2_1, v2_3);
56
57 const uint32x4x2_t v0_0 = vzipq_u32(v1_0.val[0], v1_1.val[0]);
58 const uint32x4x2_t v0_1 = vzipq_u32(v1_0.val[1], v1_1.val[1]);
59
60 uint32_t *oN = (uint32_t*) ((uintptr_t) o + oN_stride);
61 switch (rem) {
62 case 3:
63 vst1q_u32(oN, v0_1.val[1]); oN = (uint32_t*) ((uintptr_t) oN + minus_output_stride);
64 case 2:
65 vst1q_u32(oN, v0_1.val[0]); oN = (uint32_t*) ((uintptr_t) oN + minus_output_stride);
66 case 1:
67 vst1q_u32(oN, v0_0.val[1]);
68 case 0:
69 vst1q_u32(o, v0_0.val[0]); o = (uint32_t*) ((uintptr_t) o + tile_hbytes);
70 break;
71 default:
72 XNN_UNREACHABLE;
73 }
74 }
75
76 if (bh != 0) {
77 const uint32x4_t v2_0 = vld1q_u32(i0);
78 if XNN_UNPREDICTABLE(bh < 2) {
79 i1 = i0;
80 }
81 const uint32x4_t v2_1 = vld1q_u32(i1);
82 if XNN_UNPREDICTABLE(bh <= 2) {
83 i2 = i0;
84 }
85 const uint32x4_t v2_2 = vld1q_u32(i2);
86 const uint32x4_t v2_3 = vmovq_n_u32(0);
87
88 const uint32x4x2_t v1_0 = vzipq_u32(v2_0, v2_2);
89 const uint32x4x2_t v1_1 = vzipq_u32(v2_1, v2_3);
90
91 const uint32x4x2_t v0_0 = vzipq_u32(v1_0.val[0], v1_1.val[0]);
92 const uint32x4x2_t v0_1 = vzipq_u32(v1_0.val[1], v1_1.val[1]);
93
94 uint32x2_t v0_low = vget_low_u32(v0_0.val[0]);
95 uint32x2_t v1_low = vget_low_u32(v0_0.val[1]);
96 uint32x2_t v2_low = vget_low_u32(v0_1.val[0]);
97 uint32x2_t v3_low = vget_low_u32(v0_1.val[1]);
98
99 if (bh & 2) {
100 uint32_t* oN = (uint32_t*) ((uintptr_t) o + oN_stride);
101 switch (rem) {
102 case 3:
103 vst1_u32(oN, v3_low); oN = (uint32_t*) ((uintptr_t) oN + minus_output_stride);
104 case 2:
105 vst1_u32(oN, v2_low); oN = (uint32_t*) ((uintptr_t) oN + minus_output_stride);
106 case 1:
107 vst1_u32(oN, v1_low);
108 case 0:
109 vst1_u32(o, v0_low); o += 2;
110 break;
111 default:
112 XNN_UNREACHABLE;
113 }
114 v0_low = vget_high_u32(v0_0.val[0]);
115 v1_low = vget_high_u32(v0_0.val[1]);
116 v2_low = vget_high_u32(v0_1.val[0]);
117 v3_low = vget_high_u32(v0_1.val[1]);
118 }
119
120 if (bh & 1) {
121 uint32_t* oN = (uint32_t*) ((uintptr_t) o + oN_stride);
122 switch (rem) {
123 case 3:
124 vst1_lane_u32(oN, v3_low, 0); oN = (uint32_t*) ((uintptr_t) oN + minus_output_stride);
125 case 2:
126 vst1_lane_u32(oN, v2_low, 0); oN = (uint32_t*) ((uintptr_t) oN + minus_output_stride);
127 case 1:
128 vst1_lane_u32(oN, v1_low, 0);
129 case 0:
130 vst1_lane_u32(o, v0_low, 0);
131 break;
132 default:
133 XNN_UNREACHABLE;
134 }
135 }
136 }
137
138 i0 = (const uint32_t*) ((uintptr_t) i0 + input_reset);
139 i1 = (const uint32_t*) ((uintptr_t) i0 + input_stride);
140 i2 = (const uint32_t*) ((uintptr_t) i1 + input_stride);
141 i3 = (const uint32_t*) ((uintptr_t) i2 + input_stride);
142 o = (uint32_t*) ((uintptr_t) o + output_reset);
143 block_width = doz(block_width, tile_width);
144 } while (block_width != 0);
145 }
146