xref: /aosp_15_r20/external/XNNPACK/src/f32-vsqrt/gen/scalar-sqrt-x2.c (revision 4bdc94577ba0e567308109d787f7fec7b531ce36)
1*4bdc9457SAndroid Build Coastguard Worker // Auto-generated file. Do not edit!
2*4bdc9457SAndroid Build Coastguard Worker //   Template: src/f32-vsqrt/scalar-sqrt.c.in
3*4bdc9457SAndroid Build Coastguard Worker //   Generator: tools/xngen
4*4bdc9457SAndroid Build Coastguard Worker //
5*4bdc9457SAndroid Build Coastguard Worker // Copyright 2020 Google LLC
6*4bdc9457SAndroid Build Coastguard Worker //
7*4bdc9457SAndroid Build Coastguard Worker // This source code is licensed under the BSD-style license found in the
8*4bdc9457SAndroid Build Coastguard Worker // LICENSE file in the root directory of this source tree.
9*4bdc9457SAndroid Build Coastguard Worker 
10*4bdc9457SAndroid Build Coastguard Worker #include <assert.h>
11*4bdc9457SAndroid Build Coastguard Worker #include <math.h>
12*4bdc9457SAndroid Build Coastguard Worker 
13*4bdc9457SAndroid Build Coastguard Worker #include <xnnpack/common.h>
14*4bdc9457SAndroid Build Coastguard Worker #include <xnnpack/vunary.h>
15*4bdc9457SAndroid Build Coastguard Worker 
16*4bdc9457SAndroid Build Coastguard Worker 
xnn_f32_vsqrt_ukernel__scalar_sqrt_x2(size_t n,const float * x,float * y,const union xnn_f32_sqrt_params params[restrict XNN_MIN_ELEMENTS (1)])17*4bdc9457SAndroid Build Coastguard Worker void xnn_f32_vsqrt_ukernel__scalar_sqrt_x2(
18*4bdc9457SAndroid Build Coastguard Worker     size_t n,
19*4bdc9457SAndroid Build Coastguard Worker     const float* x,
20*4bdc9457SAndroid Build Coastguard Worker     float* y,
21*4bdc9457SAndroid Build Coastguard Worker     const union xnn_f32_sqrt_params params[restrict XNN_MIN_ELEMENTS(1)])
22*4bdc9457SAndroid Build Coastguard Worker {
23*4bdc9457SAndroid Build Coastguard Worker   assert(n != 0);
24*4bdc9457SAndroid Build Coastguard Worker   assert(n % sizeof(float) == 0);
25*4bdc9457SAndroid Build Coastguard Worker 
26*4bdc9457SAndroid Build Coastguard Worker   for (; n >= 2 * sizeof(float); n -= 2 * sizeof(float)) {
27*4bdc9457SAndroid Build Coastguard Worker     const float vx0 = x[0];
28*4bdc9457SAndroid Build Coastguard Worker     const float vx1 = x[1];
29*4bdc9457SAndroid Build Coastguard Worker     x += 2;
30*4bdc9457SAndroid Build Coastguard Worker 
31*4bdc9457SAndroid Build Coastguard Worker     const float vy0 = sqrtf(vx0);
32*4bdc9457SAndroid Build Coastguard Worker     const float vy1 = sqrtf(vx1);
33*4bdc9457SAndroid Build Coastguard Worker 
34*4bdc9457SAndroid Build Coastguard Worker     y[0] = vy0;
35*4bdc9457SAndroid Build Coastguard Worker     y[1] = vy1;
36*4bdc9457SAndroid Build Coastguard Worker     y += 2;
37*4bdc9457SAndroid Build Coastguard Worker   }
38*4bdc9457SAndroid Build Coastguard Worker   if XNN_UNLIKELY(n != 0) {
39*4bdc9457SAndroid Build Coastguard Worker     const float vx = *x;
40*4bdc9457SAndroid Build Coastguard Worker     const float vy = sqrtf(vx);
41*4bdc9457SAndroid Build Coastguard Worker     *y = vy;
42*4bdc9457SAndroid Build Coastguard Worker   }
43*4bdc9457SAndroid Build Coastguard Worker }
44