| // Auto-generated file. Do not edit! |
| // Template: src/f32-igemm/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/igemm.h> |
| #include <xnnpack/math.h> |
| |
| |
| void xnn_f32_igemm_ukernel_4x2__scalar( |
| size_t mr, |
| size_t nc, |
| size_t kc, |
| size_t ks, |
| const float**restrict a, |
| const float*restrict w, |
| float*restrict c, |
| size_t cm_stride, |
| size_t cn_stride, |
| size_t a_offset, |
| const float* zero, |
| const union xnn_f32_output_params params[restrict static 1]) |
| { |
| assert(mr != 0); |
| assert(mr <= 4); |
| assert(nc != 0); |
| assert(kc != 0); |
| assert(kc % sizeof(float) == 0); |
| assert(ks != 0); |
| assert(ks % (4 * sizeof(void*)) == 0); |
| assert(a_offset % sizeof(float) == 0); |
| assert(a != NULL); |
| assert(w != NULL); |
| assert(c != NULL); |
| |
| float* c0 = c; |
| float* c1 = (float*) ((uintptr_t) c0 + cm_stride); |
| if XNN_UNPREDICTABLE(mr < 2) { |
| c1 = c0; |
| } |
| float* c2 = (float*) ((uintptr_t) c1 + cm_stride); |
| if XNN_UNPREDICTABLE(mr <= 2) { |
| c2 = c1; |
| } |
| float* c3 = (float*) ((uintptr_t) c2 + cm_stride); |
| if XNN_UNPREDICTABLE(mr != 4) { |
| c3 = c2; |
| } |
| |
| do { |
| float vacc00 = w[0]; |
| float vacc01 = w[1]; |
| float vacc10 = vacc00; |
| float vacc11 = vacc01; |
| float vacc20 = vacc00; |
| float vacc21 = vacc01; |
| float vacc30 = vacc00; |
| float vacc31 = vacc01; |
| w += 2; |
| |
| size_t p = ks; |
| do { |
| const float* restrict a0 = a[0]; |
| assert(a0 != NULL); |
| if XNN_UNPREDICTABLE(a0 != zero) { |
| a0 = (const float*) ((uintptr_t) a0 + a_offset); |
| } |
| const float* restrict a1 = a[1]; |
| assert(a1 != NULL); |
| if XNN_UNPREDICTABLE(a1 != zero) { |
| a1 = (const float*) ((uintptr_t) a1 + a_offset); |
| } |
| const float* restrict a2 = a[2]; |
| assert(a2 != NULL); |
| if XNN_UNPREDICTABLE(a2 != zero) { |
| a2 = (const float*) ((uintptr_t) a2 + a_offset); |
| } |
| const float* restrict a3 = a[3]; |
| assert(a3 != NULL); |
| if XNN_UNPREDICTABLE(a3 != zero) { |
| a3 = (const float*) ((uintptr_t) a3 + a_offset); |
| } |
| a += 4; |
| |
| size_t k = kc; |
| do { |
| const float va0 = *a0++; |
| const float va1 = *a1++; |
| const float va2 = *a2++; |
| const float va3 = *a3++; |
| |
| const float vb0 = w[0]; |
| const float vb1 = w[1]; |
| w += 2; |
| |
| vacc00 += va0 * vb0; |
| vacc01 += va0 * vb1; |
| vacc10 += va1 * vb0; |
| vacc11 += va1 * vb1; |
| vacc20 += va2 * vb0; |
| vacc21 += va2 * vb1; |
| vacc30 += va3 * vb0; |
| vacc31 += va3 * vb1; |
| |
| k -= sizeof(float); |
| } while (k != 0); |
| p -= 4 * sizeof(void*); |
| } while (p != 0); |
| |
| const float vmin = params->scalar.min; |
| vacc00 = math_max_f32(vacc00, vmin); |
| vacc01 = math_max_f32(vacc01, vmin); |
| vacc10 = math_max_f32(vacc10, vmin); |
| vacc11 = math_max_f32(vacc11, vmin); |
| vacc20 = math_max_f32(vacc20, vmin); |
| vacc21 = math_max_f32(vacc21, vmin); |
| vacc30 = math_max_f32(vacc30, vmin); |
| vacc31 = math_max_f32(vacc31, vmin); |
| |
| const float vmax = params->scalar.max; |
| vacc00 = math_min_f32(vacc00, vmax); |
| vacc01 = math_min_f32(vacc01, vmax); |
| vacc10 = math_min_f32(vacc10, vmax); |
| vacc11 = math_min_f32(vacc11, vmax); |
| vacc20 = math_min_f32(vacc20, vmax); |
| vacc21 = math_min_f32(vacc21, vmax); |
| vacc30 = math_min_f32(vacc30, vmax); |
| vacc31 = math_min_f32(vacc31, vmax); |
| |
| if XNN_LIKELY(nc >= 2) { |
| c3[0] = vacc30; |
| c3[1] = vacc31; |
| c3 = (float*) ((uintptr_t) c3 + cn_stride); |
| c2[0] = vacc20; |
| c2[1] = vacc21; |
| c2 = (float*) ((uintptr_t) c2 + cn_stride); |
| c1[0] = vacc10; |
| c1[1] = vacc11; |
| c1 = (float*) ((uintptr_t) c1 + cn_stride); |
| c0[0] = vacc00; |
| c0[1] = vacc01; |
| c0 = (float*) ((uintptr_t) c0 + cn_stride); |
| |
| a = (const float**restrict) ((uintptr_t) a - ks); |
| nc -= 2; |
| } else { |
| if (nc & 1) { |
| c3[0] = vacc30; |
| c2[0] = vacc20; |
| c1[0] = vacc10; |
| c0[0] = vacc00; |
| } |
| |
| nc = 0; |
| } |
| } while (nc != 0); |
| } |