| // Auto-generated file. Do not edit! |
| // Template: src/qs8-f32-vcvt/scalar.c.in |
| // Generator: tools/xngen |
| // |
| // 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. |
| |
| #include <assert.h> |
| |
| #include <xnnpack/common.h> |
| #include <xnnpack/math.h> |
| #include <xnnpack/vcvt.h> |
| |
| |
| void xnn_qu8_f32_vcvt_ukernel__scalar_x4( |
| size_t n, |
| const uint8_t* x, |
| float* y, |
| const union xnn_qu8_f32_cvt_params params[restrict XNN_MIN_ELEMENTS(1)]) |
| { |
| assert(n != 0); |
| assert(n % sizeof(uint8_t) == 0); |
| assert(x != NULL); |
| assert(y != NULL); |
| |
| const int32_t vzero_point = params->scalar.zero_point; |
| const float vscale = params->scalar.scale; |
| |
| for (; n >= 4 * sizeof(uint8_t); n -= 4 * sizeof(uint8_t)) { |
| int32_t vx0 = (int32_t) x[0]; |
| int32_t vx1 = (int32_t) x[1]; |
| int32_t vx2 = (int32_t) x[2]; |
| int32_t vx3 = (int32_t) x[3]; |
| x += 4; |
| |
| vx0 -= vzero_point; |
| vx1 -= vzero_point; |
| vx2 -= vzero_point; |
| vx3 -= vzero_point; |
| |
| float vy0 = (float) vx0; |
| float vy1 = (float) vx1; |
| float vy2 = (float) vx2; |
| float vy3 = (float) vx3; |
| |
| vy0 *= vscale; |
| vy1 *= vscale; |
| vy2 *= vscale; |
| vy3 *= vscale; |
| |
| y[0] = vy0; |
| y[1] = vy1; |
| y[2] = vy2; |
| y[3] = vy3; |
| y += 4; |
| } |
| if XNN_UNLIKELY(n != 0) { |
| do { |
| int32_t vx = *x++; |
| vx -= vzero_point; |
| |
| float vy = (float) vx; |
| vy *= vscale; |
| *y++ = vy; |
| |
| n -= sizeof(uint8_t); |
| } while (n != 0); |
| } |
| } |