xref: /aosp_15_r20/external/XNNPACK/src/f32-prelu/avx512f.c.in (revision 4bdc94577ba0e567308109d787f7fec7b531ce36)
1*4bdc9457SAndroid Build Coastguard Worker// Copyright 2020 Google LLC
2*4bdc9457SAndroid Build Coastguard Worker//
3*4bdc9457SAndroid Build Coastguard Worker// This source code is licensed under the BSD-style license found in the
4*4bdc9457SAndroid Build Coastguard Worker// LICENSE file in the root directory of this source tree.
5*4bdc9457SAndroid Build Coastguard Worker
6*4bdc9457SAndroid Build Coastguard Worker$assert CHANNEL_TILE % 16 == 0
7*4bdc9457SAndroid Build Coastguard Worker$assert CHANNEL_TILE >= 16
8*4bdc9457SAndroid Build Coastguard Worker$assert ROW_TILE >= 1
9*4bdc9457SAndroid Build Coastguard Worker$ABC = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
10*4bdc9457SAndroid Build Coastguard Worker#include <assert.h>
11*4bdc9457SAndroid Build Coastguard Worker
12*4bdc9457SAndroid Build Coastguard Worker#include <immintrin.h>
13*4bdc9457SAndroid Build Coastguard Worker
14*4bdc9457SAndroid Build Coastguard Worker#include <xnnpack/intrinsics-polyfill.h>
15*4bdc9457SAndroid Build Coastguard Worker#include <xnnpack/math.h>
16*4bdc9457SAndroid Build Coastguard Worker#include <xnnpack/prelu.h>
17*4bdc9457SAndroid Build Coastguard Worker
18*4bdc9457SAndroid Build Coastguard Worker
19*4bdc9457SAndroid Build Coastguard Workervoid xnn_f32_prelu_ukernel__avx512f_${ROW_TILE}x${CHANNEL_TILE}(
20*4bdc9457SAndroid Build Coastguard Worker    size_t rows,
21*4bdc9457SAndroid Build Coastguard Worker    size_t channels,
22*4bdc9457SAndroid Build Coastguard Worker    const float*restrict input,
23*4bdc9457SAndroid Build Coastguard Worker    size_t input_stride,
24*4bdc9457SAndroid Build Coastguard Worker    const float*restrict weights,
25*4bdc9457SAndroid Build Coastguard Worker    float*restrict output,
26*4bdc9457SAndroid Build Coastguard Worker    size_t output_stride)
27*4bdc9457SAndroid Build Coastguard Worker{
28*4bdc9457SAndroid Build Coastguard Worker  assert(rows != 0);
29*4bdc9457SAndroid Build Coastguard Worker  assert(channels != 0);
30*4bdc9457SAndroid Build Coastguard Worker  assert(channels % sizeof(float) == 0);
31*4bdc9457SAndroid Build Coastguard Worker
32*4bdc9457SAndroid Build Coastguard Worker  const float* i0 = input;
33*4bdc9457SAndroid Build Coastguard Worker  float* o0 = output;
34*4bdc9457SAndroid Build Coastguard Worker  $for M in range(1, ROW_TILE):
35*4bdc9457SAndroid Build Coastguard Worker    const float* i${M} = (const float*) ((uintptr_t) i${M-1} + input_stride);
36*4bdc9457SAndroid Build Coastguard Worker    float* o${M} = (float*) ((uintptr_t) o${M-1} + output_stride);
37*4bdc9457SAndroid Build Coastguard Worker
38*4bdc9457SAndroid Build Coastguard Worker  const size_t input_increment = input_stride * ${ROW_TILE} - channels;
39*4bdc9457SAndroid Build Coastguard Worker  const size_t output_increment = output_stride * ${ROW_TILE} - channels;
40*4bdc9457SAndroid Build Coastguard Worker
41*4bdc9457SAndroid Build Coastguard Worker  const __m512 vzero = _mm512_setzero_ps();
42*4bdc9457SAndroid Build Coastguard Worker  do {
43*4bdc9457SAndroid Build Coastguard Worker    $for M in range(1, ROW_TILE):
44*4bdc9457SAndroid Build Coastguard Worker      $if M % 2 == 0:
45*4bdc9457SAndroid Build Coastguard Worker        if XNN_UNPREDICTABLE(rows <= ${M}) {
46*4bdc9457SAndroid Build Coastguard Worker          i${M} = i${M-1};
47*4bdc9457SAndroid Build Coastguard Worker          o${M} = o${M-1};
48*4bdc9457SAndroid Build Coastguard Worker        }
49*4bdc9457SAndroid Build Coastguard Worker      $else:
50*4bdc9457SAndroid Build Coastguard Worker        if XNN_UNPREDICTABLE(rows < ${M+1}) {
51*4bdc9457SAndroid Build Coastguard Worker          i${M} = i${M-1};
52*4bdc9457SAndroid Build Coastguard Worker          o${M} = o${M-1};
53*4bdc9457SAndroid Build Coastguard Worker        }
54*4bdc9457SAndroid Build Coastguard Worker
55*4bdc9457SAndroid Build Coastguard Worker    const float* w = weights;
56*4bdc9457SAndroid Build Coastguard Worker    size_t c = channels;
57*4bdc9457SAndroid Build Coastguard Worker    for (; c >= ${CHANNEL_TILE} * sizeof(float); c -= ${CHANNEL_TILE} * sizeof(float)) {
58*4bdc9457SAndroid Build Coastguard Worker      const __m512 vw${ABC[0:16]} = _mm512_load_ps(w);
59*4bdc9457SAndroid Build Coastguard Worker      $for C in range(16, CHANNEL_TILE, 16):
60*4bdc9457SAndroid Build Coastguard Worker        const __m512 vw${ABC[C:C+16]} = _mm512_load_ps(w + ${C});
61*4bdc9457SAndroid Build Coastguard Worker      w += ${CHANNEL_TILE};
62*4bdc9457SAndroid Build Coastguard Worker
63*4bdc9457SAndroid Build Coastguard Worker      $for M in range(ROW_TILE):
64*4bdc9457SAndroid Build Coastguard Worker        const __m512 vi${M}x${ABC[0:16]} = _mm512_loadu_ps(i${M});
65*4bdc9457SAndroid Build Coastguard Worker        $for C in range(16, CHANNEL_TILE, 16):
66*4bdc9457SAndroid Build Coastguard Worker          const __m512 vi${M}x${ABC[C:C+16]} = _mm512_loadu_ps(i${M} + ${C});
67*4bdc9457SAndroid Build Coastguard Worker        i${M} += ${CHANNEL_TILE};
68*4bdc9457SAndroid Build Coastguard Worker
69*4bdc9457SAndroid Build Coastguard Worker      $for M in range(ROW_TILE):
70*4bdc9457SAndroid Build Coastguard Worker        $for C in range(0, CHANNEL_TILE, 16):
71*4bdc9457SAndroid Build Coastguard Worker          const __mmask16 vsign${M}x${ABC[C:C+16]} = _mm512_cmp_ps_mask(vi${M}x${ABC[C:C+16]}, vzero, _CMP_LT_OQ);
72*4bdc9457SAndroid Build Coastguard Worker          const __m512 vacc${M}x${ABC[C:C+16]} = _mm512_mask_mul_ps(vi${M}x${ABC[C:C+16]}, vsign${M}x${ABC[C:C+16]}, vi${M}x${ABC[C:C+16]}, vw${ABC[C:C+16]});
73*4bdc9457SAndroid Build Coastguard Worker
74*4bdc9457SAndroid Build Coastguard Worker      $for M in range(ROW_TILE):
75*4bdc9457SAndroid Build Coastguard Worker        _mm512_storeu_ps(o${M}, vacc${M}x${ABC[0:16]});
76*4bdc9457SAndroid Build Coastguard Worker        $for C in range(16, CHANNEL_TILE, 16):
77*4bdc9457SAndroid Build Coastguard Worker          _mm512_storeu_ps(o${M} + ${C}, vacc${M}x${ABC[C:C+16]});
78*4bdc9457SAndroid Build Coastguard Worker        o${M} += ${CHANNEL_TILE};
79*4bdc9457SAndroid Build Coastguard Worker    }
80*4bdc9457SAndroid Build Coastguard Worker    $if CHANNEL_TILE > 16:
81*4bdc9457SAndroid Build Coastguard Worker      for (; c >= 16 * sizeof(float); c -= 16 * sizeof(float)) {
82*4bdc9457SAndroid Build Coastguard Worker        const __m512 vw = _mm512_load_ps(w);
83*4bdc9457SAndroid Build Coastguard Worker        w += 16;
84*4bdc9457SAndroid Build Coastguard Worker
85*4bdc9457SAndroid Build Coastguard Worker        $for M in range(ROW_TILE):
86*4bdc9457SAndroid Build Coastguard Worker          const __m512 vi${M} = _mm512_loadu_ps(i${M});
87*4bdc9457SAndroid Build Coastguard Worker          i${M} += 16;
88*4bdc9457SAndroid Build Coastguard Worker
89*4bdc9457SAndroid Build Coastguard Worker        $for M in range(ROW_TILE):
90*4bdc9457SAndroid Build Coastguard Worker          const __mmask16 vsign${M} = _mm512_cmp_ps_mask(vi${M}, vzero, _CMP_LT_OQ);
91*4bdc9457SAndroid Build Coastguard Worker          const __m512 vacc${M} = _mm512_mask_mul_ps(vi${M}, vsign${M}, vi${M}, vw);
92*4bdc9457SAndroid Build Coastguard Worker
93*4bdc9457SAndroid Build Coastguard Worker        $for M in range(ROW_TILE):
94*4bdc9457SAndroid Build Coastguard Worker          _mm512_storeu_ps(o${M}, vacc${M});
95*4bdc9457SAndroid Build Coastguard Worker          o${M} += 16;
96*4bdc9457SAndroid Build Coastguard Worker      }
97*4bdc9457SAndroid Build Coastguard Worker    if XNN_UNLIKELY(c != 0) {
98*4bdc9457SAndroid Build Coastguard Worker      assert(c >= 1 * sizeof(float));
99*4bdc9457SAndroid Build Coastguard Worker      assert(c <= 15 * sizeof(float));
100*4bdc9457SAndroid Build Coastguard Worker      // Prepare mask for valid 32-bit elements (depends on c).
101*4bdc9457SAndroid Build Coastguard Worker      const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << (c >> 2 /* log2(sizeof(float))*/)) - UINT32_C(1)));
102*4bdc9457SAndroid Build Coastguard Worker
103*4bdc9457SAndroid Build Coastguard Worker      const __m512 vw = _mm512_maskz_loadu_ps(vmask, w);
104*4bdc9457SAndroid Build Coastguard Worker
105*4bdc9457SAndroid Build Coastguard Worker      $for M in range(ROW_TILE):
106*4bdc9457SAndroid Build Coastguard Worker        const __m512 vi${M} = _mm512_maskz_loadu_ps(vmask, i${M});
107*4bdc9457SAndroid Build Coastguard Worker        i${M} = (const float*) ((uintptr_t) i${M} + c);
108*4bdc9457SAndroid Build Coastguard Worker
109*4bdc9457SAndroid Build Coastguard Worker      $for M in range(ROW_TILE):
110*4bdc9457SAndroid Build Coastguard Worker        const __mmask16 vsign${M} = _mm512_cmp_ps_mask(vi${M}, vzero, _CMP_LT_OQ);
111*4bdc9457SAndroid Build Coastguard Worker        const __m512 vacc${M} = _mm512_mask_mul_ps(vi${M}, vsign${M}, vi${M}, vw);
112*4bdc9457SAndroid Build Coastguard Worker
113*4bdc9457SAndroid Build Coastguard Worker      $for M in range(ROW_TILE):
114*4bdc9457SAndroid Build Coastguard Worker        _mm512_mask_storeu_ps(o${M}, vmask, vacc${M});
115*4bdc9457SAndroid Build Coastguard Worker        o${M} = (float*) ((uintptr_t) o${M} + c);
116*4bdc9457SAndroid Build Coastguard Worker    }
117*4bdc9457SAndroid Build Coastguard Worker    $for M in range(ROW_TILE):
118*4bdc9457SAndroid Build Coastguard Worker      i${M} = (const float*) ((uintptr_t) i${M} + input_increment);
119*4bdc9457SAndroid Build Coastguard Worker      o${M} = (float*) ((uintptr_t) o${M} + output_increment);
120*4bdc9457SAndroid Build Coastguard Worker    rows = doz(rows, ${ROW_TILE});
121*4bdc9457SAndroid Build Coastguard Worker  } while (rows != 0);
122*4bdc9457SAndroid Build Coastguard Worker}
123