| // Auto-generated file. Do not edit! |
| // Template: src/f32-gemm/scalar.c.in |
| // Generator: tools/xngen |
| // |
| // 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. |
| |
| #include <assert.h> |
| |
| #include <xnnpack/gemm.h> |
| #include <xnnpack/math.h> |
| |
| |
| void xnn_f32_gemminc_ukernel_1x4__scalar( |
| size_t mr, |
| size_t nc, |
| size_t kc, |
| const float* restrict a, |
| size_t a_stride, |
| const float* restrict w, |
| float* restrict c, |
| size_t cm_stride, |
| size_t cn_stride, |
| const float*restrict acc, |
| const union xnn_f32_output_params params[restrict static 1]) |
| { |
| assert(mr != 0); |
| assert(mr <= 1); |
| assert(nc != 0); |
| assert(kc != 0); |
| assert(kc % sizeof(float) == 0); |
| assert(a != NULL); |
| assert(w != NULL); |
| assert(c != NULL); |
| assert(acc != NULL); |
| |
| const float* a0 = a; |
| float* c0 = c; |
| |
| do { |
| float vacc00 = acc[0]; |
| float vacc01 = acc[1]; |
| float vacc02 = acc[2]; |
| float vacc03 = acc[3]; |
| acc += 4; |
| |
| size_t k = kc; |
| do { |
| const float va0 = *a0++; |
| |
| const float vb0 = w[0]; |
| const float vb1 = w[1]; |
| const float vb2 = w[2]; |
| const float vb3 = w[3]; |
| w += 4; |
| |
| vacc00 += va0 * vb0; |
| vacc01 += va0 * vb1; |
| vacc02 += va0 * vb2; |
| vacc03 += va0 * vb3; |
| |
| k -= sizeof(float); |
| } while (k != 0); |
| |
| const float vmin = params->scalar.min; |
| vacc00 = math_max_f32(vacc00, vmin); |
| vacc01 = math_max_f32(vacc01, vmin); |
| vacc02 = math_max_f32(vacc02, vmin); |
| vacc03 = math_max_f32(vacc03, vmin); |
| |
| const float vmax = params->scalar.max; |
| vacc00 = math_min_f32(vacc00, vmax); |
| vacc01 = math_min_f32(vacc01, vmax); |
| vacc02 = math_min_f32(vacc02, vmax); |
| vacc03 = math_min_f32(vacc03, vmax); |
| |
| if XNN_LIKELY(nc >= 4) { |
| c0[0] = vacc00; |
| c0[1] = vacc01; |
| c0[2] = vacc02; |
| c0[3] = vacc03; |
| c0 = (float*) ((uintptr_t) c0 + cn_stride); |
| |
| a0 = (const void*) ((uintptr_t) a0 - kc); |
| |
| nc -= 4; |
| } else { |
| if (nc & 2) { |
| c0[0] = vacc00; |
| c0[1] = vacc01; |
| vacc00 = vacc02; |
| c0 += 2; |
| } |
| if (nc & 1) { |
| c0[0] = vacc00; |
| } |
| |
| nc = 0; |
| } |
| } while (nc != 0); |
| } |