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_x3(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_x3( 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 >= 3 * sizeof(int8_t); n -= 3 * 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 x += 3; 36 37 vx0 -= vzero_point; 38 vx1 -= vzero_point; 39 vx2 -= vzero_point; 40 41 float vy0 = (float) vx0; 42 float vy1 = (float) vx1; 43 float vy2 = (float) vx2; 44 45 vy0 *= vscale; 46 vy1 *= vscale; 47 vy2 *= vscale; 48 49 y[0] = vy0; 50 y[1] = vy1; 51 y[2] = vy2; 52 y += 3; 53 } 54 if XNN_UNLIKELY(n != 0) { 55 do { 56 int32_t vx = *x++; 57 vx -= vzero_point; 58 59 float vy = (float) vx; 60 vy *= vscale; 61 *y++ = vy; 62 63 n -= sizeof(int8_t); 64 } while (n != 0); 65 } 66 } 67