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// Copyright 2019 Google LLC
//
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree.
$assert DATATYPE in ["F32", "QC4", "QC8"]
$assert NR == 2
$assert MR % 2 == 0
#include <assert.h>
$if DATATYPE in ["QC8", "QC4"]:
#include <smmintrin.h>
$else:
#include <xmmintrin.h>
#include <xnnpack/gemm.h>
$if DATATYPE == "QC8":
#include <xnnpack/unaligned.h>
$if DATATYPE in ["QC8", "QC4"]:
$ISA = {2: "sse2", 4: "sse41"}[SSE]
$else:
$ISA = "sse"
$DATATYPE_SPEC = {"F32": "f32", "QC8": "f32_qc8w", "QC4": "f32_qc4w"}[DATATYPE]
void xnn_${DATATYPE_SPEC}_gemm_minmax_ukernel_${MR}x${NR}c4__${ISA}(
size_t mr,
size_t nc,
size_t kc,
const float* restrict a,
size_t a_stride,
$if DATATYPE == "F32":
const float* restrict w,
$else:
const void* restrict w,
float* restrict c,
size_t cm_stride,
size_t cn_stride,
$if DATATYPE == "QC4":
const union xnn_f32_qc4w_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
$else:
const union xnn_f32_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
{
assert(mr != 0);
assert(mr <= ${MR});
assert(nc != 0);
assert(kc != 0);
assert(kc % sizeof(float) == 0);
assert(a != NULL);
assert(w != NULL);
assert(c != NULL);
const float* a0 = a;
float* c0 = c;
$for M in range(1, MR):
const float* a${M} = (const float*) ((uintptr_t) a${M-1} + a_stride);
float* c${M} = (float*) ((uintptr_t) c${M-1} + cm_stride);
$if M % 2 == 0:
if XNN_UNPREDICTABLE(mr <= ${M}) {
a${M} = a${M-1};
c${M} = c${M-1};
}
$elif M + 1 == MR:
if XNN_UNPREDICTABLE(mr != ${M+1}) {
a${M} = a${M-1};
c${M} = c${M-1};
}
$else:
if XNN_UNPREDICTABLE(mr < ${M+1}) {
a${M} = a${M-1};
c${M} = c${M-1};
}
do {
__m128 vacc0x0c4 = _mm_load_ss(w);
$for N in range(1, NR):
$if DATATYPE == "F32":
__m128 vacc0x${N}c4 = _mm_load_ss(w + ${N});
$else:
__m128 vacc0x${N}c4 = _mm_load_ss((const float*) w + ${N});
$for M in range(1, MR):
$for N in range(NR):
__m128 vacc${M}x${N}c4 = vacc0x${N}c4;
$if DATATYPE == "F32":
w += ${NR};
$else:
w = (const float*) w + ${NR};
size_t k = kc;
for (; k >= 4 * sizeof(float); k -= 4 * sizeof(float)) {
$for M in range(MR):
const __m128 va${M} = _mm_loadu_ps(a${M});
a${M} += 4;
$if DATATYPE == "F32":
const __m128 vb0 = _mm_loadu_ps(w);
$for N in range(1, NR):
const __m128 vb${N} = _mm_loadu_ps(w + ${N * 4});
w += ${NR * 4};
$else:
$if SSE >= 4:
const __m128i vbi0 = _mm_cvtepi8_epi32(_mm_cvtsi32_si128((int) unaligned_load_u32(w)));
$for N in range(1, NR):
const __m128i vbi${N} = _mm_cvtepi8_epi32(_mm_cvtsi32_si128((int) unaligned_load_s32((const int8_t*) w + ${N * 4})));
$for N in range(NR):
const __m128 vb${N} = _mm_cvtepi32_ps(vbi${N});
$else:
$for N in range(0, NR, 2):
const __m128i vb${N}${N+1} = _mm_loadl_epi64((const __m128i *) ((const int8_t*) w + ${N * 4}));
$for N in range(0, NR, 2):
const __m128i vbw${N}${N+1} = _mm_unpacklo_epi8(vb${N}${N+1}, vb${N}${N+1});
const __m128 vb${N} = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(vbw${N}${N+1}, vbw${N}${N+1}), 24));
const __m128 vb${N+1} = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(vbw${N}${N+1}, vbw${N}${N+1}), 24));
w = (const int8_t*) w + ${NR * 4};
$for M in range(MR):
$for N in range(NR):
vacc${M}x${N}c4 = _mm_add_ps(vacc${M}x${N}c4, _mm_mul_ps(va${M}, vb${N}));
}
if XNN_UNLIKELY(k != 0) {
$for M in range(MR):
const __m128 va${M} = _mm_loadu_ps(a${M});
a${M} = (const float*) ((uintptr_t) a${M} + k);
$if DATATYPE == "F32":
const __m128 vb0 = _mm_loadu_ps(w);
$for N in range(1, NR):
const __m128 vb${N} = _mm_loadu_ps(w + ${N * 4});
w += ${NR * 4};
$else:
$if SSE >= 4:
const __m128i vbi0 = _mm_cvtepi8_epi32(_mm_cvtsi32_si128((int) unaligned_load_u32(w)));
$for N in range(1, NR):
const __m128i vbi${N} = _mm_cvtepi8_epi32(_mm_cvtsi32_si128((int) unaligned_load_s32((const int8_t*) w + ${N * 4})));
$for N in range(NR):
const __m128 vb${N} = _mm_cvtepi32_ps(vbi${N});
$else:
$for N in range(0, NR, 2):
const __m128i vb${N}${N+1} = _mm_loadl_epi64((const __m128i *) ((const int8_t*) w + ${N * 4}));
$for N in range(0, NR, 2):
const __m128i vbw${N}${N+1} = _mm_unpacklo_epi8(vb${N}${N+1}, vb${N}${N+1});
const __m128 vb${N} = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(vbw${N}${N+1}, vbw${N}${N+1}), 24));
const __m128 vb${N+1} = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(vbw${N}${N+1}, vbw${N}${N+1}), 24));
w = (const int8_t*) w + ${NR * 4};
$for N in range(NR):
const __m128 vmask${N} = _mm_cmpeq_ps(_mm_setzero_ps(), vb${N});
$for M in range(MR):
$for N in range(NR):
vacc${M}x${N}c4 = _mm_add_ps(vacc${M}x${N}c4, _mm_mul_ps(_mm_andnot_ps(vmask${N}, va${M}), vb${N}));
}
$for M in range(MR):
const __m128 vacc${M}x01c2 = _mm_add_ps(_mm_unpacklo_ps(vacc${M}x0c4, vacc${M}x1c4), _mm_unpackhi_ps(vacc${M}x0c4, vacc${M}x1c4));
$for M in range(0, MR, 2):
__m128 vacc${M}${M+1}x01 = _mm_add_ps(_mm_movelh_ps(vacc${M}x01c2, vacc${M+1}x01c2), _mm_movehl_ps(vacc${M+1}x01c2, vacc${M}x01c2));
$if DATATYPE in ["QC8", "QC4"]:
const __m128 vscalex01 = _mm_castsi128_ps(_mm_loadl_epi64((const __m128i*) w));
const __m128 vscale2x01 = _mm_movelh_ps(vscalex01, vscalex01);
w = (const float*) w + 2;
$for M in range(0, MR, 2):
vacc${M}${M+1}x01 = _mm_mul_ps(vacc${M}${M+1}x01, vscale2x01);
const __m128 vmax = _mm_load_ps(params->sse.max);
$for M in range(0, MR, 2):
vacc${M}${M+1}x01 = _mm_min_ps(vacc${M}${M+1}x01, vmax);
const __m128 vmin = _mm_load_ps(params->sse.min);
$for M in range(0, MR, 2):
vacc${M}${M+1}x01 = _mm_max_ps(vacc${M}${M+1}x01, vmin);
if XNN_LIKELY(nc >= ${NR}) {
$for M in reversed(range(0, MR, 2)):
_mm_storel_pi((__m64*) c${M}, vacc${M}${M+1}x01);
c${M} = (float*) ((uintptr_t) c${M} + cn_stride);
a${M} = (const float*) ((uintptr_t) a${M} - kc);
_mm_storeh_pi((__m64*) c${M+1}, vacc${M}${M+1}x01);
c${M+1} = (float*) ((uintptr_t) c${M+1} + cn_stride);
a${M+1} = (const float*) ((uintptr_t) a${M+1} - kc);
nc -= ${NR};
} else {
assert(nc == 1);
$for M in reversed(range(0, MR, 2)):
_mm_store_ss(c${M}, vacc${M}${M+1}x01);
_mm_store_ss(c${M+1}, _mm_movehl_ps(vacc${M}${M+1}x01, vacc${M}${M+1}x01));
nc = 0;
}
} while (nc != 0);
}
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