1 // Auto-generated file. Do not edit! 2 // Template: src/qs8-f32-vcvt/scalar.c.in 3 // Generator: tools/xngen 4 // 5 // Copyright 2021 Google LLC 6 // 7 // This source code is licensed under the BSD-style license found in the 8 // LICENSE file in the root directory of this source tree. 9 10 #include <assert.h> 11 12 #include <xnnpack/common.h> 13 #include <xnnpack/math.h> 14 #include <xnnpack/vcvt.h> 15 16 xnn_qs8_f32_vcvt_ukernel__scalar_x4(size_t n,const int8_t * x,float * y,const union xnn_qs8_f32_cvt_params params[restrict XNN_MIN_ELEMENTS (1)])17void xnn_qs8_f32_vcvt_ukernel__scalar_x4( 18 size_t n, 19 const int8_t* x, 20 float* y, 21 const union xnn_qs8_f32_cvt_params params[restrict XNN_MIN_ELEMENTS(1)]) 22 { 23 assert(n != 0); 24 assert(n % sizeof(int8_t) == 0); 25 assert(x != NULL); 26 assert(y != NULL); 27 28 const int32_t vzero_point = params->scalar.zero_point; 29 const float vscale = params->scalar.scale; 30 31 for (; n >= 4 * sizeof(int8_t); n -= 4 * sizeof(int8_t)) { 32 int32_t vx0 = (int32_t) x[0]; 33 int32_t vx1 = (int32_t) x[1]; 34 int32_t vx2 = (int32_t) x[2]; 35 int32_t vx3 = (int32_t) x[3]; 36 x += 4; 37 38 vx0 -= vzero_point; 39 vx1 -= vzero_point; 40 vx2 -= vzero_point; 41 vx3 -= vzero_point; 42 43 float vy0 = (float) vx0; 44 float vy1 = (float) vx1; 45 float vy2 = (float) vx2; 46 float vy3 = (float) vx3; 47 48 vy0 *= vscale; 49 vy1 *= vscale; 50 vy2 *= vscale; 51 vy3 *= vscale; 52 53 y[0] = vy0; 54 y[1] = vy1; 55 y[2] = vy2; 56 y[3] = vy3; 57 y += 4; 58 } 59 if XNN_UNLIKELY(n != 0) { 60 do { 61 int32_t vx = *x++; 62 vx -= vzero_point; 63 64 float vy = (float) vx; 65 vy *= vscale; 66 *y++ = vy; 67 68 n -= sizeof(int8_t); 69 } while (n != 0); 70 } 71 } 72