| // 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/clamp.h> |
| |
| |
| void xnn_u8_clamp_ukernel__scalar_x4( |
| size_t n, |
| const uint8_t* x, |
| uint8_t* y, |
| const union xnn_u8_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) |
| { |
| assert(n != 0); |
| |
| const uint8_t voutput_max = params->scalar.max; |
| const uint8_t voutput_min = params->scalar.min; |
| |
| for (; n >= 4 * sizeof(uint8_t); n -= 4 * sizeof(uint8_t)) { |
| uint8_t vt0 = x[0]; |
| uint8_t vt1 = x[1]; |
| uint8_t vt2 = x[2]; |
| uint8_t vt3 = x[3]; |
| x += 4; |
| |
| vt0 = XNN_UNPREDICTABLE(vt0 < voutput_min) ? voutput_min : vt0; |
| vt1 = XNN_UNPREDICTABLE(vt1 < voutput_min) ? voutput_min : vt1; |
| vt2 = XNN_UNPREDICTABLE(vt2 < voutput_min) ? voutput_min : vt2; |
| vt3 = XNN_UNPREDICTABLE(vt3 < voutput_min) ? voutput_min : vt3; |
| |
| vt0 = XNN_UNPREDICTABLE(vt0 > voutput_max) ? voutput_max : vt0; |
| vt1 = XNN_UNPREDICTABLE(vt1 > voutput_max) ? voutput_max : vt1; |
| vt2 = XNN_UNPREDICTABLE(vt2 > voutput_max) ? voutput_max : vt2; |
| vt3 = XNN_UNPREDICTABLE(vt3 > voutput_max) ? voutput_max : vt3; |
| |
| y[0] = vt0; |
| y[1] = vt1; |
| y[2] = vt2; |
| y[3] = vt3; |
| y += 4; |
| } |
| |
| if XNN_UNLIKELY(n != 0) { |
| do { |
| uint8_t vt = *x++; |
| vt = XNN_UNPREDICTABLE(vt < voutput_min) ? voutput_min : vt; |
| vt = XNN_UNPREDICTABLE(vt > voutput_max) ? voutput_max : vt; |
| *y++ = vt; |
| |
| n -= sizeof(uint8_t); |
| } while (n != 0); |
| } |
| } |