1/* { dg-do run } */
2/* { dg-require-effective-target fma4 } */
3/* { dg-options "-O0 -mfma4" } */
4
5#include "fma4-check.h"
6
7#include <x86intrin.h>
8#include <string.h>
9
10#define NUM 20
11
12union
13{
14  __m128 x[NUM];
15  float f[NUM * 4];
16  __m128d y[NUM];
17  double d[NUM * 2];
18} dst, res, src1, src2, src3;
19
20/* Note that in macc*,msub*,mnmacc* and mnsub* instructions, the intermdediate
21   product is not rounded, only the addition is rounded. */
22
23static void
24init_msubps ()
25{
26  int i;
27  for (i = 0; i < NUM * 4; i++)
28    {
29      src1.f[i] = i;
30      src2.f[i] = i + 10;
31      src3.f[i] = i + 20;
32    }
33}
34
35static void
36init_msubpd ()
37{
38  int i;
39  for (i = 0; i < NUM * 4; i++)
40    {
41      src1.d[i] = i;
42      src2.d[i] = i + 10;
43      src3.d[i] = i + 20;
44    }
45}
46
47static int
48check_msubps ()
49{
50  int i, j, check_fails = 0;
51  for (i = 0; i < NUM * 4; i = i + 4)
52    for (j = 0; j < 4; j++)
53      {
54	res.f[i + j] = (src1.f[i + j] * src2.f[i + j]) - src3.f[i + j];
55	if (dst.f[i + j] != res.f[i + j])
56	  check_fails++;
57      }
58  return check_fails++;
59}
60
61static int
62check_msubpd ()
63{
64  int i, j, check_fails = 0;
65  for (i = 0; i < NUM * 2; i = i + 2)
66    for (j = 0; j < 2; j++)
67      {
68	res.d[i + j] = (src1.d[i + j] * src2.d[i + j]) - src3.d[i + j];
69	if (dst.d[i + j] != res.d[i + j])
70	  check_fails++;
71      }
72  return check_fails++;
73}
74
75
76static int
77check_msubss ()
78{
79  int i, j, check_fails = 0;
80  for (i = 0; i < NUM * 4; i = i + 4)
81    {
82      res.f[i] = (src1.f[i] * src2.f[i]) - src3.f[i];
83      if (dst.f[i] != res.f[i])
84	check_fails++;
85    }
86  return check_fails++;
87}
88
89static int
90check_msubsd ()
91{
92  int i, j, check_fails = 0;
93  for (i = 0; i < NUM * 2; i = i + 2)
94    {
95      res.d[i] = (src1.d[i] * src2.d[i]) - src3.d[i];
96      if (dst.d[i] != res.d[i])
97	check_fails++;
98    }
99  return check_fails++;
100}
101
102static void
103fma4_test (void)
104{
105  int i;
106
107  init_msubps ();
108
109  for (i = 0; i < NUM; i++)
110    dst.x[i] = _mm_msub_ps (src1.x[i], src2.x[i], src3.x[i]);
111
112  if (check_msubps ())
113    abort ();
114
115  for (i = 0; i < NUM; i++)
116    dst.x[i] = _mm_msub_ss (src1.x[i], src2.x[i], src3.x[i]);
117
118  if (check_msubss ())
119    abort ();
120
121  init_msubpd ();
122
123  for (i = 0; i < NUM; i++)
124    dst.y[i] = _mm_msub_pd (src1.y[i], src2.y[i], src3.y[i]);
125
126  if (check_msubpd ())
127    abort ();
128
129  for (i = 0; i < NUM; i++)
130    dst.y[i] = _mm_msub_sd (src1.y[i], src2.y[i], src3.y[i]);
131
132  if (check_msubsd ())
133    abort ();
134}
135