aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-all.c
blob: 6756283b7d929025207f6df98c1a1207ae067fad (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
/* { dg-require-effective-target vect_int } */
/* { dg-require-effective-target vect_float } */

#include <stdarg.h>
#include "tree-vect.h"

#define N 16

int iadd_results[N] = {0,6,12,18,24,30,36,42,48,54,60,66,72,78,84,90};
float fadd_results[N] = {0.0,6.0,12.0,18.0,24.0,30.0,36.0,42.0,48.0,54.0,60.0,66.0,72.0,78.0,84.0,90.0};
float fmul_results[N] = {0.0,3.0,12.0,27.0,48.0,75.0,108.0,147.0,192.0,243.0,300.0,363.0,432.0,507.0,588.0,675.0};
float fresults1[N] = {192.00,240.00,288.00,336.00,384.00,432.00,480.00,528.00,48.00,54.00,60.00,66.00,72.00,78.00,84.00,90.00};
float fresults2[N] = {0.00,6.00,12.00,18.00,24.00,30.00,36.00,42.00,0.00,54.00,120.00,198.00,288.00,390.00,504.00,630.00};

/****************************************************/
__attribute__ ((noinline))
void icheck_results (int *a, int *results)
{
  int i;
  for (i = 0; i < N; i++)
    {
      if (a[i] != results[i])
	abort ();
    }
}

__attribute__ ((noinline))
void fcheck_results (float *a, float *results)
{
  int i;
  for (i = 0; i < N; i++)
    {
      if (a[i] != results[i])
	abort ();
    }
}   

__attribute__ ((noinline)) void 
fbar_mul (float *a)
{
  fcheck_results (a, fmul_results);
} 

__attribute__ ((noinline)) void 
fbar_add (float *a)
{
  fcheck_results (a, fadd_results);
} 

__attribute__ ((noinline)) void 
ibar_add (int *a)
{
  icheck_results (a, iadd_results);
} 

__attribute__ ((noinline)) void 
fbar1 (float *a)
{
  fcheck_results (a, fresults1);
} 

__attribute__ ((noinline)) void 
fbar2 (float *a)
{
  fcheck_results (a, fresults2);
} 

float a[N];
float e[N];
float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
float d[N] = {0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30};
int ic[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
int ib[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
int ia[N];
char cb[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
char ca[N];
short sa[N];

/* All of the loops below are currently vectorizable.  */

__attribute__ ((noinline)) int
main1 ()
{
  int i,j;

  /* Test 1: copy chars.  */
  for (i = 0; i < N; i++)
    {
      ca[i] = cb[i];
    }
  /* check results:  */
  for (i = 0; i < N; i++)
    {
      if (ca[i] != cb[i])
	abort ();
    }


  /* Test 2: fp mult.  */
  for (i = 0; i < N; i++)
    {
      a[i] = b[i] * c[i];
    }
  fbar_mul (a);


  /* Test 3: mixed types (int, fp), same nunits in vector.  */
  for (i = 0; i < N; i++)
    {
      a[i] = b[i] + c[i] + d[i];
      e[i] = b[i] + c[i] + d[i];
      ia[i] = ib[i] + ic[i];
    }
  ibar_add (ia);
  fbar_add (a);
  fbar_add (e);


  /* Test 4: access with offset.  */
  for (i = 0; i < N/2; i++)
    {
      a[i] = b[i+N/2] * c[i+N/2] - b[i] * c[i];
      e[i+N/2] = b[i] * c[i+N/2] + b[i+N/2] * c[i];
    }
  fbar1 (a);
  fbar2 (e);


  /* Test 5: access with offset */
  for (i = 1; i <=N-4; i++)
    {
      a[i+3] = b[i-1];
    }
  /* check results:  */
  for (i = 1; i <=N-4; i++)
    {
      if (a[i+3] != b[i-1])
	abort ();
    }


  /* Test 6 - loop induction with stride != 1.  */
  i = 0;
  j = 0;
  while (i < 5*N)
    {
      a[j] = c[j];
      i += 5;
      j++;
    }
  /* check results:  */
  for (i = 0; i <N; i++)
    {
      if (a[i] != c[i])
        abort ();
    }


  /* Test 7 - reverse access.  */
  for (i = N; i > 0; i--)
    {
      a[N-i] = d[N-i];
    }
  /* check results:  */
  for (i = 0; i <N; i++)
    {
      if (a[i] != d[i])
        abort ();
    }


  /* Tests 8,9,10 - constants.  */
  for (i = 0; i < N; i++)
    {
      a[i] = 5.0;
    }
  /* check results:  */
  for (i = 0; i < N; i++)
    {
      if (a[i] != 5.0)
        abort ();
    }

  for (i = 0; i < N; i++)
    {
      sa[i] = 5;
    }
  /* check results:  */
  for (i = 0; i < N; i++)
    {
      if (sa[i] != 5)
        abort ();
    }

  for (i = 0; i < N; i++)
    {
      ia[i] = ib[i] + 5;
    }
  /* check results:  */
  for (i = 0; i < N; i++)
    {
      if (ia[i] != ib[i] + 5)
        abort ();
    }

  return 0;
}

int main (void)
{
  check_vect ();

  return main1 ();
}

/* { dg-final { scan-tree-dump-times "vectorized 10 loops" 1 "vect" } } */
/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" { target { { vect_aligned_arrays } && {! vect_sizes_32B_16B} } } } } */
/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { target { {! vect_aligned_arrays } && {vect_sizes_32B_16B} } } } } */
/* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */
/* { dg-final { cleanup-tree-dump "vect" } } */