1 // Auto-generated file. Do not edit!
2 // Template: src/f32-vrnd/vrndne-sse2.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2020 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 <emmintrin.h>
13
14 #include <xnnpack/common.h>
15 #include <xnnpack/math.h>
16 #include <xnnpack/vunary.h>
17
18
xnn_f32_vrndne_ukernel__sse2_x4(size_t n,const float * x,float * y,const union xnn_f32_rnd_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_f32_vrndne_ukernel__sse2_x4(
20 size_t n,
21 const float* x,
22 float* y,
23 const union xnn_f32_rnd_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
24 {
25 assert(n != 0);
26 assert(n % sizeof(float) == 0);
27
28 const __m128i vmagic = _mm_load_si128((const __m128i*) params->sse2.sign_mask);
29 for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) {
30 const __m128 vx0123 = _mm_loadu_ps(x);
31 x += 4;
32
33 const __m128i vintx0123 = _mm_cvtps_epi32(vx0123);
34
35 const __m128 vrndmask0123 = _mm_castsi128_ps(_mm_or_si128(vmagic, _mm_cmpeq_epi32(vintx0123, vmagic)));
36
37 const __m128 vrndx0123 = _mm_cvtepi32_ps(vintx0123);
38
39 const __m128 vy0123 = _mm_or_ps(_mm_and_ps(vx0123, vrndmask0123), _mm_andnot_ps(vrndmask0123, vrndx0123));
40
41 _mm_storeu_ps(y, vy0123);
42 y += 4;
43 }
44 if XNN_UNLIKELY(n != 0) {
45 const __m128 vx = _mm_loadu_ps(x);
46 const __m128i vintx = _mm_cvtps_epi32(vx);
47 const __m128 vrndmask = _mm_castsi128_ps(_mm_or_si128(vmagic, _mm_cmpeq_epi32(vintx, vmagic)));
48 const __m128 vrndx = _mm_cvtepi32_ps(vintx);
49 __m128 vy = _mm_or_ps(_mm_and_ps(vx, vrndmask), _mm_andnot_ps(vrndmask, vrndx));
50 if (n & (2 * sizeof(float))) {
51 _mm_storel_pi((__m64*) y, vy);
52 vy = _mm_movehl_ps(vy, vy);
53 y += 2;
54 }
55 if (n & (1 * sizeof(float))) {
56 _mm_store_ss(y, vy);
57 }
58 }
59 }
60