AVX2 MUL16 QS8/QC8 DWCONV microkernels using VPUNPCK instructions to extend the product
PiperOrigin-RevId: 387428311
diff --git a/src/qs8-dwconv/unipass-avx2-mul16-vpunpck.c.in b/src/qs8-dwconv/unipass-avx2-mul16-vpunpck.c.in
new file mode 100644
index 0000000..19839c0
--- /dev/null
+++ b/src/qs8-dwconv/unipass-avx2-mul16-vpunpck.c.in
@@ -0,0 +1,232 @@
+// Copyright 2021 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.
+
+$ABC = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+$assert REQUANTIZATION == "FP32"
+$assert DATATYPE in ["QC8", "QS8"]
+$assert CHANNEL_TILE % 16 == 0
+$assert CHANNEL_TILE >= 16
+$assert KERNEL_TILE >= 2
+#include <assert.h>
+
+#include <immintrin.h>
+
+#include <xnnpack/dwconv.h>
+
+
+$PARAMS_STRUCT = "avx2" if DATATYPE == "QC8" else REQUANTIZATION.lower() + "_avx2"
+$PARAMS_UNION = "xnn_qs8_minmax_params" if DATATYPE == "QC8" else "xnn_qs8_conv_minmax_params"
+void xnn_${DATATYPE.lower()}_dwconv_minmax_${REQUANTIZATION.lower()}_ukernel_up${CHANNEL_TILE}x${KERNEL_TILE}__avx2_mul16_vpunpck(
+ size_t channels,
+ size_t output_width,
+ const int8_t** input,
+ const void* weights,
+ int8_t* output,
+ size_t input_stride,
+ size_t output_increment,
+ size_t input_offset,
+ const int8_t* zero,
+ const union ${PARAMS_UNION} params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN XNN_DISABLE_MSAN
+{
+ assert(channels != 0);
+ assert(output_width != 0);
+
+ do {
+ $for K in range(KERNEL_TILE):
+ const int8_t* i${K} = input[${K}];
+ assert(i${K} != NULL);
+ if XNN_UNPREDICTABLE(i${K} != zero) {
+ i${K} = (const int8_t*) ((uintptr_t) i${K} + input_offset);
+ }
+ input = (const int8_t**) ((uintptr_t) input + input_stride);
+
+ size_t c = channels;
+ const void* w = weights;
+ for (; c >= ${CHANNEL_TILE}; c -= ${CHANNEL_TILE}) {
+ __m256i vacc${ABC[0:8]} = _mm256_loadu_si256((const __m256i*) w);
+ $for C in range(8, CHANNEL_TILE, 8):
+ __m256i vacc${ABC[C:C+8]} = _mm256_loadu_si256((const __m256i*) ((uintptr_t) w + ${C} * sizeof(int32_t)));
+
+ $for C in range(0, CHANNEL_TILE, 16):
+ __m256i vacc${ABC[C:C+4]}${ABC[C+8:C+12]} = _mm256_inserti128_si256(vacc${ABC[C:C+8]}, _mm256_castsi256_si128(vacc${ABC[C+8:C+16]}), 1);
+ __m256i vacc${ABC[C+4:C+8]}${ABC[C+12:C+16]} = _mm256_permute2x128_si256(vacc${ABC[C:C+8]}, vacc${ABC[C+8:C+16]}, 0x31);
+
+ $for K in range(KERNEL_TILE):
+
+ $for C in range(0, CHANNEL_TILE, 16):
+ $if C == 0:
+ const __m256i vi${K}x${ABC[0:16]} = _mm256_cvtepi8_epi16(_mm_loadu_si128((const __m128i*) i${K}));
+ $else:
+ const __m256i vi${K}x${ABC[C:C+16]} = _mm256_cvtepi8_epi16(_mm_loadu_si128((const __m128i*) (i${K} + ${C})));
+ const __m256i vk${K}x${ABC[C:C+16]} = _mm256_cvtepi8_epi16(_mm_loadu_si128((const __m128i*) ((uintptr_t) w + ${CHANNEL_TILE} * sizeof(int32_t) + ${K * CHANNEL_TILE + C} * sizeof(int8_t))));
+ i${K} += ${CHANNEL_TILE};
+
+ $for C in range(0, CHANNEL_TILE, 16):
+ const __m256i vprod${K}x${ABC[C:C+16]}lo = _mm256_mullo_epi16(vi${K}x${ABC[C:C+16]}, vk${K}x${ABC[C:C+16]});
+ const __m256i vprod${K}x${ABC[C:C+16]}hi = _mm256_srai_epi16(vprod${K}x${ABC[C:C+16]}lo, 15);
+
+ $for C in range(0, CHANNEL_TILE, 16):
+ vacc${ABC[C:C+4]}${ABC[C+8:C+12]} = _mm256_add_epi32(vacc${ABC[C:C+4]}${ABC[C+8:C+12]}, _mm256_unpacklo_epi16(vprod${K}x${ABC[C:C+16]}lo, vprod${K}x${ABC[C:C+16]}hi));
+ vacc${ABC[C+4:C+8]}${ABC[C+12:C+16]} = _mm256_add_epi32(vacc${ABC[C+4:C+8]}${ABC[C+12:C+16]}, _mm256_unpackhi_epi16(vprod${K}x${ABC[C:C+16]}lo, vprod${K}x${ABC[C:C+16]}hi));
+
+ w = (const void*) ((uintptr_t) w + ${CHANNEL_TILE} * sizeof(int32_t) + ${KERNEL_TILE * CHANNEL_TILE} * sizeof(int8_t));
+
+ $for C in range(0, CHANNEL_TILE, 16):
+ vacc${ABC[C:C+8]} = _mm256_inserti128_si256(vacc${ABC[C:C+4]}${ABC[C+8:C+12]}, _mm256_castsi256_si128(vacc${ABC[C+4:C+8]}${ABC[C+12:C+16]}), 1);
+ vacc${ABC[C+8:C+16]} = _mm256_permute2x128_si256(vacc${ABC[C:C+4]}${ABC[C+8:C+12]}, vacc${ABC[C+4:C+8]}${ABC[C+12:C+16]}, 0x31);
+
+ $for C in range(0, CHANNEL_TILE, 8):
+ __m256 vfpacc${ABC[C:C+8]} = _mm256_cvtepi32_ps(vacc${ABC[C:C+8]});
+
+ $if DATATYPE == "QC8":
+ const __m256 vscale${ABC[0:8]} = _mm256_loadu_ps((const float*) w);
+ $for C in range(8, CHANNEL_TILE, 8):
+ const __m256 vscale${ABC[C:C+8]} = _mm256_loadu_ps((const float*) ((uintptr_t) w + ${C} * sizeof(float)));
+ w = (const void*) ((uintptr_t) w + ${CHANNEL_TILE} * sizeof(float));
+ $for C in range(0, CHANNEL_TILE, 8):
+ vfpacc${ABC[C:C+8]} = _mm256_mul_ps(vfpacc${ABC[C:C+8]}, vscale${ABC[C:C+8]});
+ $else:
+ const __m256 vscale = _mm256_load_ps(params->fp32_avx2.scale);
+ $for C in range(0, CHANNEL_TILE, 8):
+ vfpacc${ABC[C:C+8]} = _mm256_mul_ps(vfpacc${ABC[C:C+8]}, vscale);
+
+ $for C in range(0, CHANNEL_TILE, 8):
+ vacc${ABC[C:C+8]} = _mm256_cvtps_epi32(vfpacc${ABC[C:C+8]});
+
+ const __m256i voutput_zero_point = _mm256_load_si256((const __m256i*) params->${PARAMS_STRUCT}.output_zero_point);
+ $for C in range(0, CHANNEL_TILE, 16):
+ const __m256i vout${ABC[C:C+4]}${ABC[C+8:C+12]}${ABC[C+4:C+8]}${ABC[C+12:C+16]} = _mm256_adds_epi16(_mm256_packs_epi32(vacc${ABC[C:C+8]}, vacc${ABC[C+8:C+16]}), voutput_zero_point);
+
+ $for C in range(0, CHANNEL_TILE, 16):
+ __m128i vout${ABC[C:C+16]} = _mm_shuffle_epi32(_mm_packs_epi16(_mm256_castsi256_si128(vout${ABC[C:C+4]}${ABC[C+8:C+12]}${ABC[C+4:C+8]}${ABC[C+12:C+16]}), _mm256_extracti128_si256(vout${ABC[C:C+4]}${ABC[C+8:C+12]}${ABC[C+4:C+8]}${ABC[C+12:C+16]}, 1)), _MM_SHUFFLE(3, 1, 2, 0));
+
+ const __m128i voutput_min = _mm_load_si128((const __m128i*) params->${PARAMS_STRUCT}.output_min);
+ const __m128i voutput_max = _mm_load_si128((const __m128i*) params->${PARAMS_STRUCT}.output_max);
+ $for C in range(0, CHANNEL_TILE, 16):
+ vout${ABC[C:C+16]} = _mm_max_epi8(vout${ABC[C:C+16]}, voutput_min);
+ vout${ABC[C:C+16]} = _mm_min_epi8(vout${ABC[C:C+16]}, voutput_max);
+
+ _mm_storeu_si128((__m128i*) output, vout${ABC[0:16]});
+ $for C in range(16, CHANNEL_TILE, 16):
+ _mm_storeu_si128((__m128i*) (output + ${C}), vout${ABC[C:C+16]});
+ output += ${CHANNEL_TILE};
+ }
+ if XNN_UNLIKELY(c != 0) {
+ $if CHANNEL_TILE > 16:
+ const int8_t* k = (const int8_t*) ((uintptr_t) w + ${CHANNEL_TILE} * sizeof(int32_t));
+ ${"do " if CHANNEL_TILE > 16 else ""}{
+ __m256i vacc${ABC[0:8]} = _mm256_loadu_si256((const __m256i*) w);
+ __m256i vacc${ABC[8:16]} = _mm256_loadu_si256((const __m256i*) ((uintptr_t) w + 8 * sizeof(int32_t)));
+
+ __m256i vacc${ABC[0:4]}${ABC[8:12]} = _mm256_inserti128_si256(vacc${ABC[0:8]}, _mm256_castsi256_si128(vacc${ABC[8:16]}), 1);
+ __m256i vacc${ABC[4:8]}${ABC[12:16]} = _mm256_permute2x128_si256(vacc${ABC[0:8]}, vacc${ABC[8:16]}, 0x31);
+
+ $for K in range(KERNEL_TILE):
+
+ const __m256i vi${K}x${ABC[0:16]} = _mm256_cvtepi8_epi16(_mm_loadu_si128((const __m128i*) i${K}));
+ $if CHANNEL_TILE > 16:
+ $if K == 0:
+ const __m256i vk${K}x${ABC[0:16]} = _mm256_cvtepi8_epi16(_mm_loadu_si128((const __m128i*) k));
+ $else:
+ const __m256i vk${K}x${ABC[0:16]} = _mm256_cvtepi8_epi16(_mm_loadu_si128((const __m128i*) (k + ${K * CHANNEL_TILE})));
+ $else:
+ const __m256i vk${K}x${ABC[0:16]} = _mm256_cvtepi8_epi16(_mm_loadu_si128((const __m128i*) ((uintptr_t) w + ${CHANNEL_TILE} * sizeof(int32_t) + ${K * CHANNEL_TILE} * sizeof(int8_t))));
+ $if CHANNEL_TILE > 16:
+ i${K} += 16;
+
+ const __m256i vprod${K}x${ABC[0:16]}lo = _mm256_mullo_epi16(vi${K}x${ABC[0:16]}, vk${K}x${ABC[0:16]});
+ const __m256i vprod${K}x${ABC[0:16]}hi = _mm256_srai_epi16(vprod${K}x${ABC[0:16]}lo, 15);
+
+ vacc${ABC[0:4]}${ABC[8:12]} = _mm256_add_epi32(vacc${ABC[0:4]}${ABC[8:12]}, _mm256_unpacklo_epi16(vprod${K}x${ABC[0:16]}lo, vprod${K}x${ABC[0:16]}hi));
+ vacc${ABC[4:8]}${ABC[12:16]} = _mm256_add_epi32(vacc${ABC[4:8]}${ABC[12:16]}, _mm256_unpackhi_epi16(vprod${K}x${ABC[0:16]}lo, vprod${K}x${ABC[0:16]}hi));
+
+ vacc${ABC[0:8]} = _mm256_inserti128_si256(vacc${ABC[0:4]}${ABC[8:12]}, _mm256_castsi256_si128(vacc${ABC[4:8]}${ABC[12:16]}), 1);
+ vacc${ABC[8:16]} = _mm256_permute2x128_si256(vacc${ABC[0:4]}${ABC[8:12]}, vacc${ABC[4:8]}${ABC[12:16]}, 0x31);
+
+ $if CHANNEL_TILE > 16:
+ k += 16;
+
+ __m256 vfpacc${ABC[0:8]} = _mm256_cvtepi32_ps(vacc${ABC[0:8]});
+ __m256 vfpacc${ABC[8:16]} = _mm256_cvtepi32_ps(vacc${ABC[8:16]});
+
+ $if DATATYPE == "QC8":
+ const __m256 vscale${ABC[0:8]} = _mm256_loadu_ps((const float*) ((uintptr_t) w + ${CHANNEL_TILE} * sizeof(int32_t) + ${CHANNEL_TILE * KERNEL_TILE} * sizeof(int8_t)));
+ const __m256 vscale${ABC[8:16]} = _mm256_loadu_ps((const float*) ((uintptr_t) w + ${CHANNEL_TILE} * sizeof(int32_t) + ${CHANNEL_TILE * KERNEL_TILE} * sizeof(int8_t) + 8 * sizeof(float)));
+ vfpacc${ABC[0:8]} = _mm256_mul_ps(vfpacc${ABC[0:8]}, vscale${ABC[0:8]});
+ vfpacc${ABC[8:16]} = _mm256_mul_ps(vfpacc${ABC[8:16]}, vscale${ABC[8:16]});
+ $else:
+ const __m256 vscale = _mm256_load_ps(params->fp32_avx2.scale);
+ vfpacc${ABC[0:8]} = _mm256_mul_ps(vfpacc${ABC[0:8]}, vscale);
+ vfpacc${ABC[8:16]} = _mm256_mul_ps(vfpacc${ABC[8:16]}, vscale);
+
+ vacc${ABC[0:8]} = _mm256_cvtps_epi32(vfpacc${ABC[0:8]});
+ vacc${ABC[8:16]} = _mm256_cvtps_epi32(vfpacc${ABC[8:16]});
+
+ $if CHANNEL_TILE > 16:
+ w = (const void*) ((uintptr_t) w + 16 * sizeof(int32_t));
+
+ const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->${PARAMS_STRUCT}.output_zero_point);
+ __m128i vout${ABC[0:8]} = _mm_adds_epi16(_mm_packs_epi32(_mm256_castsi256_si128(vacc${ABC[0:8]}), _mm256_extracti128_si256(vacc${ABC[0:8]}, 1)), voutput_zero_point);
+ __m128i vout${ABC[8:16]} = _mm_adds_epi16(_mm_packs_epi32(_mm256_castsi256_si128(vacc${ABC[8:16]}), _mm256_extracti128_si256(vacc${ABC[8:16]}, 1)), voutput_zero_point);
+
+ const __m128i voutput_min = _mm_load_si128((const __m128i*) params->${PARAMS_STRUCT}.output_min);
+ const __m128i voutput_max = _mm_load_si128((const __m128i*) params->${PARAMS_STRUCT}.output_max);
+
+ __m128i vout${ABC[0:16]} = _mm_packs_epi16(vout${ABC[0:8]}, vout${ABC[8:16]});
+ vout${ABC[0:16]} = _mm_min_epi8(_mm_max_epi8(vout${ABC[0:16]}, voutput_min), voutput_max);
+
+ $if CHANNEL_TILE > 16:
+ if XNN_LIKELY(c >= 16) {
+ _mm_storeu_si128((__m128i*) output, vout${ABC[0:16]});
+ output += 16;
+ c -= 16;
+ } else {
+ if (c & 8) {
+ _mm_storel_epi64((__m128i*) output, vout${ABC[0:16]});
+ vout${ABC[0:16]} = _mm_unpackhi_epi64(vout${ABC[0:16]}, vout${ABC[0:16]});
+ output += 8;
+ }
+ if (c & 4) {
+ *((uint32_t*) output) = (uint32_t) _mm_cvtsi128_si32(vout${ABC[0:16]});
+ vout${ABC[0:16]} = _mm_srli_epi64(vout${ABC[0:16]}, 32);
+ output += 4;
+ }
+ if (c & 2) {
+ *((uint16_t*) output) = (uint16_t) _mm_extract_epi16(vout${ABC[0:16]}, 0);
+ vout${ABC[0:16]} = _mm_srli_epi32(vout${ABC[0:16]}, 16);
+ output += 2;
+ }
+ if (c & 1) {
+ *output = (int8_t) _mm_extract_epi8(vout${ABC[0:16]}, 0);
+ output += 1;
+ }
+ c = 0;
+ }
+ $else:
+ if (c & 8) {
+ _mm_storel_epi64((__m128i*) output, vout${ABC[0:16]});
+ vout${ABC[0:16]} = _mm_unpackhi_epi64(vout${ABC[0:16]}, vout${ABC[0:16]});
+ output += 8;
+ }
+ if (c & 4) {
+ *((uint32_t*) output) = (uint32_t) _mm_cvtsi128_si32(vout${ABC[0:16]});
+ vout${ABC[0:16]} = _mm_srli_epi64(vout${ABC[0:16]}, 32);
+ output += 4;
+ }
+ if (c & 2) {
+ *((uint16_t*) output) = (uint16_t) _mm_extract_epi16(vout${ABC[0:16]}, 0);
+ vout${ABC[0:16]} = _mm_srli_epi32(vout${ABC[0:16]}, 16);
+ output += 2;
+ }
+ if (c & 1) {
+ *output = (int8_t) _mm_extract_epi8(vout${ABC[0:16]}, 0);
+ output += 1;
+ }
+ }${" while (c != 0);" if CHANNEL_TILE > 16 else ""}
+ }
+
+ output = (int8_t*) ((uintptr_t) output + output_increment);
+ } while (--output_width != 0);
+}