File: vect-outer-6.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A14.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,099,328 kB
  • sloc: cpp: 3,627,108; ansic: 2,571,498; ada: 834,230; f90: 235,082; makefile: 79,231; asm: 74,984; xml: 51,692; exp: 39,736; sh: 33,298; objc: 15,629; python: 15,069; fortran: 14,429; pascal: 7,003; awk: 5,070; perl: 3,106; ml: 285; lisp: 253; lex: 204; haskell: 135
file content (65 lines) | stat: -rw-r--r-- 1,137 bytes parent folder | download 
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
 
/* { dg-require-effective-target vect_float } */

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

#define N 64
#define MAX 42

float A[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
float B[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
float C[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
float D[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
extern void abort(void); 

__attribute__ ((noinline))
int main1 ()
{  
  float s;

  int i, j;

  for (i = 0; i < N; i++)
    {
      s = 0;
      for (j = 0; j < N; j += 4)
	s += C[j];
      A[i] = s;
    }

  return 0;
}

int main ()
{
  int i,j;
  float s;

  check_vect ();

  for (i = 0; i < N; i++)
    {
      A[i] = i;
      B[i] = i;
      C[i] = i;
      D[i] = i;
    }

  main1();

  /* check results:  */
#pragma GCC novector
  for (i = 0; i < N; i++)
    {
      s = 0;
      for (j = 0; j < N; j += 4)
        s += C[j];
      if (A[i] != s)
        abort ();
    }

  return 0;
}

/* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 1 "vect" } } */
/* { dg-final { scan-tree-dump-times "zero step in outer loop." 1 "vect" } } */