| // 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 NR % 8 == 0 |
| $assert 8 <= NR <= 16 |
| $assert REQUANTIZATION in ["FP32", "RNDNU"] |
| $assert not CHANNELWISE or REQUANTIZATION == "FP32" |
| #include <assert.h> |
| |
| #include <arm_neon.h> |
| |
| #include <xnnpack/igemm.h> |
| $if REQUANTIZATION == "FP32" and ARMV8: |
| #include <xnnpack/intrinsics-polyfill.h> |
| #include <xnnpack/math.h> |
| |
| |
| $DATATYPE = "qc8" if CHANNELWISE else "qs8" |
| $PARAMS_UNION = "xnn_qs8_minmax_params" if CHANNELWISE else "xnn_qs8_conv_minmax_params" |
| $PARAMS_STRUCT = ("" if CHANNELWISE else REQUANTIZATION.lower() + "_") + ("neonv8" if ARMV8 and REQUANTIZATION == "FP32" else "neon") |
| $ISA = "neonv8" if ARMV8 else "neon" |
| void xnn_${DATATYPE}_igemm_minmax_${REQUANTIZATION.lower()}_ukernel_${MR}x${NR}c8__${ISA}_${"mlal" if MLA else "mull"}( |
| size_t mr, |
| size_t nc, |
| size_t kc, |
| size_t ks, |
| const int8_t** restrict a, |
| const void* restrict w, |
| int8_t* restrict c, |
| size_t cm_stride, |
| size_t cn_stride, |
| size_t a_offset, |
| const int8_t* zero, |
| const union ${PARAMS_UNION} params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS |
| { |
| assert(mr != 0); |
| assert(mr <= ${MR}); |
| assert(nc != 0); |
| assert(kc != 0); |
| assert(ks != 0); |
| assert(ks % (${MR} * sizeof(void*)) == 0); |
| assert(a_offset % sizeof(int8_t) == 0); |
| assert(a != NULL); |
| assert(w != NULL); |
| assert(c != NULL); |
| |
| kc = round_up_po2(kc, 8 * sizeof(int8_t)); |
| int8_t* c0 = c; |
| $for M in range(1, MR): |
| int8_t* c${M} = (int8_t*) ((uintptr_t) c${M-1} + cm_stride); |
| $if M % 2 == 0: |
| if XNN_UNPREDICTABLE(mr <= ${M}) { |
| c${M} = c${M-1}; |
| } |
| $elif M + 1 == MR: |
| if XNN_UNPREDICTABLE(mr != ${M+1}) { |
| c${M} = c${M-1}; |
| } |
| $else: |
| if XNN_UNPREDICTABLE(mr < ${M+1}) { |
| c${M} = c${M-1}; |
| } |
| |
| do { |
| $for N in range(NR): |
| int32x4_t vacc0x${N} = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t)); |
| $for M in range(1, MR): |
| $for N in range(NR): |
| int32x4_t vacc${M}x${N} = vacc0x${N}; |
| |
| size_t p = ks; |
| do { |
| $for M in range(MR): |
| const int8_t* restrict a${M} = a[${M}]; |
| if XNN_UNPREDICTABLE(a${M} != zero) { |
| a${M} = (const int8_t*) ((uintptr_t) a${M} + a_offset); |
| } |
| a += ${MR}; |
| |
| size_t k = kc; |
| $if MLA: |
| // 2x partial unrolled loop to load 16 bytes at a time using MLA. |
| while (k >= 16 * sizeof(int8_t)) { |
| $for M in range(MR): |
| const int8x8_t va${M}x0 = vld1_s8(a${M}); a${M} += 8; |
| const int8x8_t va${M}x1 = vld1_s8(a${M}); a${M} += 8; |
| |
| $for N in range(NR): |
| const int8x8_t vb${N}x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t)); |
| |
| $for N in range(NR): |
| const int8x8_t vb${N}x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t)); |
| $for M in range(MR): |
| int16x8_t vprod${M}x${N} = vmull_s8(vb${N}x0, va${M}x0); |
| $for M in range(MR): |
| vprod${M}x${N} = vmlal_s8(vprod${M}x${N}, vb${N}x1, va${M}x1); |
| $for M in range(MR): |
| vacc${M}x${N} = vpadalq_s16(vacc${M}x${N}, vprod${M}x${N}); |
| |
| k -= 16 * sizeof(int8_t); |
| } |
| |
| // Handle 8 bytes at a time using MUL. |
| ${"if" if MLA else "while"} (k != 0) { |
| $for M in range(MR): |
| const int8x8_t va${M} = vld1_s8(a${M}); a${M} += 8; |
| |
| $for N in range(NR): |
| const int8x8_t vb${N} = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t)); |
| $for M in range(MR): |
| const int16x8_t vprod${M}x${N} = vmull_s8(vb${N}, va${M}); |
| $for M in range(MR): |
| vacc${M}x${N} = vpadalq_s16(vacc${M}x${N}, vprod${M}x${N}); |
| |
| k -= 8 * sizeof(int8_t); |
| } |
| |
| p -= ${MR} * sizeof(void*); |
| } while (p != 0); |
| |
| #if XNN_ARCH_ARM64 |
| $for M in range(MR): |
| $for N in range(0, NR, 4): |
| const int32x4_t vsum${M}x${ABC[N:N+2]} = vpaddq_s32(vacc${M}x${N}, vacc${M}x${N+1}); |
| const int32x4_t vsum${M}x${ABC[N+2:N+4]} = vpaddq_s32(vacc${M}x${N+2}, vacc${M}x${N+3}); |
| |
| $for M in range(MR): |
| $for N in range(0, NR, 4): |
| int32x4_t vacc${M}x${ABC[N:N+4]} = vpaddq_s32(vsum${M}x${ABC[N:N+2]}, vsum${M}x${ABC[N+2:N+4]}); |
| #else |
| $for M in range(MR): |
| $for N in range(0, NR, 4): |
| const int32x2_t vpsum${M}x${ABC[N]} = vadd_s32(vget_low_s32(vacc${M}x${N}), vget_high_s32(vacc${M}x${N})); |
| const int32x2_t vpsum${M}x${ABC[N+1]} = vadd_s32(vget_low_s32(vacc${M}x${N+1}), vget_high_s32(vacc${M}x${N+1})); |
| const int32x2_t vpsum${M}x${ABC[N+2]} = vadd_s32(vget_low_s32(vacc${M}x${N+2}), vget_high_s32(vacc${M}x${N+2})); |
| const int32x2_t vpsum${M}x${ABC[N+3]} = vadd_s32(vget_low_s32(vacc${M}x${N+3}), vget_high_s32(vacc${M}x${N+3})); |
| const int32x2_t vsum${M}x${ABC[N:N+2]} = vpadd_s32(vpsum${M}x${ABC[N]}, vpsum${M}x${ABC[N+1]}); |
| const int32x2_t vsum${M}x${ABC[N+2:N+4]} = vpadd_s32(vpsum${M}x${ABC[N+2]}, vpsum${M}x${ABC[N+3]}); |
| int32x4_t vacc${M}x${ABC[N:N+4]} = vcombine_s32(vsum${M}x${ABC[N:N+2]}, vsum${M}x${ABC[N+2:N+4]} ); |
| #endif |
| |
| $if REQUANTIZATION == "RNDNU": |
| const int32x4_t vright_pre_shift = vld1q_dup_s32(¶ms->${PARAMS_STRUCT}.right_pre_shift); |
| const int32x4_t vmultiplier = vld1q_dup_s32(¶ms->${PARAMS_STRUCT}.multiplier); |
| const int32x4_t vright_post_shift = vld1q_dup_s32(¶ms->${PARAMS_STRUCT}.right_post_shift); |
| |
| $for M in range(MR): |
| $for N in range(0, NR, 4): |
| vacc${M}x${ABC[N:N+4]} = vqshlq_s32(vacc${M}x${ABC[N:N+4]}, vright_pre_shift); |
| |
| $for M in range(MR): |
| $for N in range(0, NR, 4): |
| vacc${M}x${ABC[N:N+4]} = vqdmulhq_s32(vacc${M}x${ABC[N:N+4]}, vmultiplier); |
| |
| $for M in range(MR): |
| $for N in range(0, NR, 4): |
| vacc${M}x${ABC[N:N+4]} = vrshlq_s32(vacc${M}x${ABC[N:N+4]}, vright_post_shift); |
| $elif REQUANTIZATION == "FP32": |
| $for M in range(MR): |
| $for N in range(0, NR, 4): |
| float32x4_t vfpacc${M}x${ABC[N:N+4]} = vcvtq_f32_s32(vacc${M}x${ABC[N:N+4]}); |
| |
| $if CHANNELWISE: |
| $for N in range(0, NR, 4): |
| const float32x4_t vscale${ABC[N:N+4]} = vld1q_f32((const float*) w); w = (const void*) ((const float*) w + 4); |
| $for M in range(MR): |
| vfpacc${M}x${ABC[N:N+4]} = vmulq_f32(vfpacc${M}x${ABC[N:N+4]}, vscale${ABC[N:N+4]}); |
| $else: |
| const float32x4_t vscale = vld1q_dup_f32(¶ms->${PARAMS_STRUCT}.scale); |
| $for M in range(MR): |
| $for N in range(0, NR, 4): |
| vfpacc${M}x${ABC[N:N+4]} = vmulq_f32(vfpacc${M}x${ABC[N:N+4]}, vscale); |
| |
| $if ARMV8: |
| $for M in range(MR): |
| $for N in range(0, NR, 4): |
| vacc${M}x${ABC[N:N+4]} = vcvtnq_s32_f32(vfpacc${M}x${ABC[N:N+4]}); |
| $else: |
| const float32x4_t vmagic_bias = vld1q_dup_f32(¶ms->${PARAMS_STRUCT}.magic_bias); |
| $for M in range(MR): |
| $for N in range(0, NR, 4): |
| vacc${M}x${ABC[N:N+4]} = vreinterpretq_s32_f32(vaddq_f32(vfpacc${M}x${ABC[N:N+4]}, vmagic_bias)); |
| |
| const int32x4_t vmagic_bias_less_output_zero_point = vld1q_dup_s32(¶ms->${PARAMS_STRUCT}.magic_bias_less_output_zero_point); |
| $for M in range(MR): |
| $for N in range(0, NR, 4): |
| vacc${M}x${ABC[N:N+4]} = vqsubq_s32(vacc${M}x${ABC[N:N+4]}, vmagic_bias_less_output_zero_point); |
| |
| $if REQUANTIZATION != "FP32" or ARMV8: |
| const int16x8_t voutput_zero_point = vld1q_dup_s16(¶ms->${PARAMS_STRUCT}.output_zero_point); |
| #if XNN_ARCH_ARM64 |
| $for M in range(MR): |
| $for N in range(0, NR, 8): |
| int16x8_t vacc${M}x${ABC[N:N+8]} = vqmovn_high_s32(vqmovn_s32(vacc${M}x${ABC[N:N+4]}), vacc${M}x${ABC[N+4:N+8]}); |
| |
| $if REQUANTIZATION != "FP32" or ARMV8: |
| $for M in range(MR): |
| $for N in range(0, NR, 8): |
| vacc${M}x${ABC[N:N+8]} = vqaddq_s16(vacc${M}x${ABC[N:N+8]}, voutput_zero_point); |
| |
| $for M in range(MR): |
| $for N in range(0, NR, 16): |
| $if N + 8 < NR: |
| int8x16_t vout${M}x${ABC[N:N+16]} = vqmovn_high_s16(vqmovn_s16(vacc${M}x${ABC[N:N+8]}), vacc${M}x${ABC[N+8:N+16]}); |
| $elif M % 2 == 1: |
| int8x16_t vout${M-1}x${ABC[N:N+8]}_${M}x${ABC[N:N+8]} = vqmovn_high_s16(vqmovn_s16(vacc${M-1}x${ABC[N:N+8]}), vacc${M}x${ABC[N:N+8]}); |
| $elif M + 1 == MR: |
| int8x8_t vout${M}x${ABC[N:N+8]} = vqmovn_s16(vacc${M}x${ABC[N:N+8]}); |
| #else |
| $for M in range(MR): |
| $for N in range(0, NR, 8): |
| int16x8_t vacc${M}x${ABC[N:N+8]} = vcombine_s16(vqmovn_s32(vacc${M}x${ABC[N:N+4]}), vqmovn_s32(vacc${M}x${ABC[N+4:N+8]})); |
| |
| $if REQUANTIZATION != "FP32" or ARMV8: |
| $for M in range(MR): |
| $for N in range(0, NR, 8): |
| vacc${M}x${ABC[N:N+8]} = vqaddq_s16(vacc${M}x${ABC[N:N+8]}, voutput_zero_point); |
| |
| $for M in range(MR): |
| $for N in range(0, NR, 16): |
| $if N + 8 < NR: |
| int8x16_t vout${M}x${ABC[N:N+16]} = vcombine_s8(vqmovn_s16(vacc${M}x${ABC[N:N+8]}), vqmovn_s16(vacc${M}x${ABC[N+8:N+16]})); |
| $elif M % 2 == 1: |
| int8x16_t vout${M-1}x${ABC[N:N+8]}_${M}x${ABC[N:N+8]} = vcombine_s8(vqmovn_s16(vacc${M-1}x${ABC[N:N+8]}), vqmovn_s16(vacc${M}x${ABC[N:N+8]})); |
| $elif M + 1 == MR: |
| int8x8_t vout${M}x${ABC[N:N+8]} = vqmovn_s16(vacc${M}x${ABC[N:N+8]}); |
| #endif |
| |
| $if NR == 8 and MR == 1: |
| const int8x8_t voutput_min = vld1_dup_s8(¶ms->${PARAMS_STRUCT}.output_min); |
| $else: |
| const int8x16_t voutput_min = vld1q_dup_s8(¶ms->${PARAMS_STRUCT}.output_min); |
| $for M in range(MR): |
| $for N in range(0, NR, 16): |
| $if N + 8 < NR: |
| vout${M}x${ABC[N:N+16]} = vmaxq_s8(vout${M}x${ABC[N:N+16]}, voutput_min); |
| $elif M % 2 == 1: |
| vout${M-1}x${ABC[N:N+8]}_${M}x${ABC[N:N+8]} = vmaxq_s8(vout${M-1}x${ABC[N:N+8]}_${M}x${ABC[N:N+8]}, voutput_min); |
| $elif M + 1 == MR: |
| $if NR == 8 and MR == 1: |
| vout${M}x${ABC[N:N+8]} = vmax_s8(vout${M}x${ABC[N:N+8]}, voutput_min); |
| $else: |
| vout${M}x${ABC[N:N+8]} = vmax_s8(vout${M}x${ABC[N:N+8]}, vget_low_s8(voutput_min)); |
| |
| $if NR == 8 and MR == 1: |
| const int8x8_t voutput_max = vld1_dup_s8(¶ms->${PARAMS_STRUCT}.output_max); |
| $else: |
| const int8x16_t voutput_max = vld1q_dup_s8(¶ms->${PARAMS_STRUCT}.output_max); |
| $for M in range(MR): |
| $for N in range(0, NR, 16): |
| $if N + 8 < NR: |
| vout${M}x${ABC[N:N+16]} = vminq_s8(vout${M}x${ABC[N:N+16]}, voutput_max); |
| $elif M % 2 == 1: |
| vout${M-1}x${ABC[N:N+8]}_${M}x${ABC[N:N+8]} = vminq_s8(vout${M-1}x${ABC[N:N+8]}_${M}x${ABC[N:N+8]}, voutput_max); |
| $elif M + 1 == MR: |
| $if NR == 8 and MR == 1: |
| vout${M}x${ABC[N:N+8]} = vmin_s8(vout${M}x${ABC[N:N+8]}, voutput_max); |
| $else: |
| vout${M}x${ABC[N:N+8]} = vmin_s8(vout${M}x${ABC[N:N+8]}, vget_low_s8(voutput_max)); |
| |
| if (nc >= ${NR}) { |
| $for M in reversed(range(MR)): |
| $for N in range(0, NR, 16): |
| $if N + 8 < NR: |
| vst1q_s8(c${M} + ${N}, vout${M}x${ABC[N:N+16]}); |
| $elif M % 2 == 1: |
| vst1_s8(c${M} + ${N}, vget_high_s8(vout${M-1}x${ABC[N:N+8]}_${M}x${ABC[N:N+8]})); |
| vst1_s8(c${M-1} + ${N}, vget_low_s8(vout${M-1}x${ABC[N:N+8]}_${M}x${ABC[N:N+8]})); |
| $elif M + 1 == MR: |
| vst1_s8(c${M} + ${N}, vout${M}x${ABC[N:N+8]}); |
| |
| $for M in reversed(range(MR)): |
| c${M} = (int8_t*) ((uintptr_t) c${M} + cn_stride); |
| |
| a = (const int8_t**restrict) ((uintptr_t) a - ks); |
| |
| nc -= ${NR}; |
| } else { |
| $if NR == 16: |
| $for M in reversed(range(MR)): |
| $if M % 2 == 1: |
| int8x16_t vout${M-1}x01234567_${M}x01234567 = vcombine_s8(vget_low_s8(vout${M-1}x0123456789ABCDEF), vget_low_s8(vout${M}x0123456789ABCDEF)); |
| $elif M + 1 == MR: |
| int8x8_t vout${M}x01234567 = vget_low_s8(vout${M}x0123456789ABCDEF); |
| if (nc & 8) { |
| $for M in reversed(range(MR)): |
| $if M % 2 == 1: |
| vst1_s8(c${M}, vget_high_s8(vout${M-1}x01234567_${M}x01234567)); c${M} += 8; |
| vst1_s8(c${M-1}, vget_low_s8(vout${M-1}x01234567_${M}x01234567)); c${M-1} += 8; |
| $elif M + 1 == MR: |
| vst1_s8(c${M}, vout${M}x01234567); c${M} += 8; |
| $for M in reversed(range(MR)): |
| $if M % 2 == 1: |
| vout${M-1}x01234567_${M}x01234567 = vcombine_s8(vget_high_s8(vout${M-1}x0123456789ABCDEF), vget_high_s8(vout${M}x0123456789ABCDEF)); |
| $elif M + 1 == MR: |
| vout${M}x01234567 = vget_high_s8(vout${M}x0123456789ABCDEF); |
| } |
| if (nc & 4) { |
| $for M in reversed(range(MR)): |
| $if M % 2 == 1: |
| vst1q_lane_u32((void*) c${M}, vreinterpretq_u32_s8(vout${M-1}x01234567_${M}x01234567), 2); c${M} += 4; |
| vst1q_lane_u32((void*) c${M-1}, vreinterpretq_u32_s8(vout${M-1}x01234567_${M}x01234567), 0); c${M-1} += 4; |
| $elif M + 1 == MR: |
| vst1_lane_u32((void*) c${M}, vreinterpret_u32_s8(vout${M}x01234567), 0); c${M} += 4; |
| $for M in reversed(range(MR)): |
| $if M % 2 == 1: |
| vout${M-1}x01234567_${M}x01234567 = vextq_s8(vout${M-1}x01234567_${M}x01234567, vout${M-1}x01234567_${M}x01234567, 4); |
| $elif M + 1 == MR: |
| vout${M}x01234567 = vext_s8(vout${M}x01234567, vout${M}x01234567, 4); |
| } |
| if (nc & 2) { |
| $for M in reversed(range(MR)): |
| $if M % 2 == 1: |
| vst1q_lane_u16((void*) c${M}, vreinterpretq_u16_s8(vout${M-1}x01234567_${M}x01234567), 4); c${M} += 2; |
| vst1q_lane_u16((void*) c${M-1}, vreinterpretq_u16_s8(vout${M-1}x01234567_${M}x01234567), 0); c${M-1} += 2; |
| $elif M + 1 == MR: |
| vst1_lane_u16((void*) c${M}, vreinterpret_u16_s8(vout${M}x01234567), 0); c${M} += 2; |
| $for M in reversed(range(MR)): |
| $if M % 2 == 1: |
| vout${M-1}x01234567_${M}x01234567 = vextq_s8(vout${M-1}x01234567_${M}x01234567, vout${M-1}x01234567_${M}x01234567, 2); |
| $elif M + 1 == MR: |
| vout${M}x01234567 = vext_s8(vout${M}x01234567, vout${M}x01234567, 2); |
| } |
| if (nc & 1) { |
| $for M in reversed(range(MR)): |
| $if M % 2 == 1: |
| vst1q_lane_s8(c${M}, vout${M-1}x01234567_${M}x01234567, 8); |
| vst1q_lane_s8(c${M-1}, vout${M-1}x01234567_${M}x01234567, 0); |
| $elif M + 1 == MR: |
| vst1_lane_s8(c${M}, vout${M}x01234567, 0); |
| } |
| |
| nc = 0; |
| } |
| } while (nc != 0); |
| } |