| // Auto-generated file. Do not edit! |
| // Template: src/qs8-gemm/MRx4c8-wasmsimd.c.in |
| // Generator: tools/xngen |
| // |
| // Copyright 2020 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. |
| |
| #include <assert.h> |
| |
| #include <wasm_simd128.h> |
| |
| #include <xnnpack/gemm.h> |
| |
| |
| void xnn_qs8_gemm_xw_minmax_ukernel_1x4c8__wasmsimd( |
| size_t mr, |
| size_t nc, |
| size_t kc, |
| const int8_t* restrict a, |
| size_t a_stride, |
| const void* restrict w, |
| int8_t* restrict c, |
| size_t cm_stride, |
| size_t cn_stride, |
| const union xnn_qs8_gemm_xw_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN |
| { |
| assert(mr != 0); |
| assert(mr <= 1); |
| assert(nc != 0); |
| assert(kc != 0); |
| assert(kc % sizeof(int8_t) == 0); |
| assert(a != NULL); |
| assert(w != NULL); |
| assert(c != NULL); |
| |
| const int8_t* a0 = a; |
| int8_t* c0 = c; |
| |
| const v128_t vzero = wasm_f64x2_splat(0.0); |
| do { |
| v128_t vacc0x0 = wasm_f32x4_replace_lane(vzero, 0, ((const float*) w)[0]); |
| v128_t vacc0x1 = wasm_f32x4_replace_lane(vzero, 0, ((const float*) w)[1]); |
| v128_t vacc0x2 = wasm_f32x4_replace_lane(vzero, 0, ((const float*) w)[2]); |
| v128_t vacc0x3 = wasm_f32x4_replace_lane(vzero, 0, ((const float*) w)[3]); |
| w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t)); |
| |
| size_t k = 0; |
| while (k < kc) { |
| const v128_t vxa0 = wasm_i16x8_load_8x8(a0); |
| a0 += 8; |
| |
| const v128_t vxb0 = wasm_v128_load(w); |
| |
| const v128_t vprod0x0 = wasm_i16x8_mul(vxa0, vxb0); |
| vacc0x0 = wasm_i32x4_add(vacc0x0, wasm_i32x4_widen_low_i16x8(vprod0x0)); |
| vacc0x0 = wasm_i32x4_add(vacc0x0, wasm_i32x4_widen_high_i16x8(vprod0x0)); |
| const v128_t vxb1 = wasm_v128_load((const void*) ((uintptr_t) w + 8 * sizeof(int16_t))); |
| |
| const v128_t vprod0x1 = wasm_i16x8_mul(vxa0, vxb1); |
| vacc0x1 = wasm_i32x4_add(vacc0x1, wasm_i32x4_widen_low_i16x8(vprod0x1)); |
| vacc0x1 = wasm_i32x4_add(vacc0x1, wasm_i32x4_widen_high_i16x8(vprod0x1)); |
| const v128_t vxb2 = wasm_v128_load((const void*) ((uintptr_t) w + 16 * sizeof(int16_t))); |
| |
| const v128_t vprod0x2 = wasm_i16x8_mul(vxa0, vxb2); |
| vacc0x2 = wasm_i32x4_add(vacc0x2, wasm_i32x4_widen_low_i16x8(vprod0x2)); |
| vacc0x2 = wasm_i32x4_add(vacc0x2, wasm_i32x4_widen_high_i16x8(vprod0x2)); |
| const v128_t vxb3 = wasm_v128_load((const void*) ((uintptr_t) w + 24 * sizeof(int16_t))); |
| |
| const v128_t vprod0x3 = wasm_i16x8_mul(vxa0, vxb3); |
| vacc0x3 = wasm_i32x4_add(vacc0x3, wasm_i32x4_widen_low_i16x8(vprod0x3)); |
| vacc0x3 = wasm_i32x4_add(vacc0x3, wasm_i32x4_widen_high_i16x8(vprod0x3)); |
| |
| w = (const void*) ((uintptr_t) w + 32 * sizeof(int16_t)); |
| k += 8 * sizeof(int8_t); |
| } |
| |
| const v128_t vacc0x02 = wasm_i32x4_add(wasm_v32x4_shuffle(vacc0x0, vacc0x2, 0, 4, 1, 5), wasm_v32x4_shuffle(vacc0x0, vacc0x2, 2, 6, 3, 7)); |
| const v128_t vacc0x13 = wasm_i32x4_add(wasm_v32x4_shuffle(vacc0x1, vacc0x3, 0, 4, 1, 5), wasm_v32x4_shuffle(vacc0x1, vacc0x3, 2, 6, 3, 7)); |
| |
| v128_t vacc0x0123 = wasm_i32x4_add(wasm_v32x4_shuffle(vacc0x02, vacc0x13, 0, 4, 1, 5), wasm_v32x4_shuffle(vacc0x02, vacc0x13, 2, 6, 3, 7)); |
| |
| const v128_t vsign0x0123 = wasm_i32x4_lt(vacc0x0123, vzero); |
| |
| const v128_t vacc0x01 = wasm_v32x4_shuffle(vacc0x0123, vsign0x0123, 0, 4, 1, 5); |
| |
| const v128_t vmultiplier = wasm_v128_load(params->wasmsimd.multiplier); |
| const v128_t vrounding = wasm_v128_load(params->wasmsimd.rounding); |
| const v128_t vprod0x01 = wasm_i64x2_add(wasm_i64x2_mul(vacc0x01, vmultiplier), vrounding); |
| const v128_t vacc0x23 = wasm_v32x4_shuffle(vacc0x0123, vsign0x0123, 2, 6, 3, 7); |
| |
| const v128_t vprod0x23 = wasm_i64x2_add(wasm_i64x2_mul(vacc0x23, vmultiplier), vrounding); |
| |
| const v128_t vq31prod0x0123 = wasm_v32x4_shuffle(vprod0x01, vprod0x23, 1, 3, 5, 7); |
| |
| const v128_t vremainder_mask = wasm_v128_load(params->wasmsimd.remainder_mask); |
| const v128_t vrem0x0123 = wasm_i32x4_add(wasm_v128_and(vq31prod0x0123, vremainder_mask), wasm_i32x4_lt(vq31prod0x0123, vzero)); |
| |
| const v128_t vthreshold = wasm_v128_load(params->wasmsimd.remainder_threshold); |
| const int32_t vshift = params->wasmsimd.shift; |
| vacc0x0123 = wasm_i32x4_sub(wasm_i32x4_shr(vq31prod0x0123, vshift), wasm_i32x4_gt(vrem0x0123, vthreshold)); |
| |
| const v128_t voutput_zero_point = wasm_v128_load(params->wasmsimd.output_zero_point); |
| v128_t vacc00x0123 = wasm_i16x8_add_saturate(wasm_i16x8_narrow_i32x4(vacc0x0123, vacc0x0123), voutput_zero_point); |
| |
| v128_t vout = wasm_i8x16_narrow_i16x8(vacc00x0123, vacc00x0123); |
| |
| const v128_t voutput_min = wasm_v128_load(params->wasmsimd.output_min); |
| vout = wasm_i8x16_max(vout, voutput_min); |
| |
| const v128_t voutput_max = wasm_v128_load(params->wasmsimd.output_max); |
| vout = wasm_i8x16_min(vout, voutput_max); |
| |
| if (nc >= 4) { |
| *((float*) c0) = (float) wasm_f32x4_extract_lane(vout, 0); |
| |
| a0 = (const int8_t*) ((uintptr_t) a0 - k); |
| |
| c0 = (int8_t*) ((uintptr_t) c0 + cn_stride); |
| |
| nc -= 4; |
| } else { |
| if (nc & 2) { |
| *((uint16_t*) c0) = (uint16_t) wasm_i16x8_extract_lane(vout, 0); |
| c0 += 2; |
| vout = wasm_u32x4_shr(vout, 16); |
| } |
| if (nc & 1) { |
| *c0 = (int8_t) wasm_i8x16_extract_lane(vout, 0); |
| } |
| |
| nc = 0; |
| } |
| } while (nc != 0); |
| } |