File: pr85586.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 (45 lines) | stat: -rw-r--r-- 817 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
 
#define N 100

void __attribute__ ((noipa))
foo (int *out, int *in, int step)
{
  for (int i = 0; i < N; ++i)
    {
      out[0] = in[i];
      out[1] = 2;
      out += step;
    }
}

int in[N];
int out[N * 2];

int
main (void)
{
  for (int i = 0; i < N; ++i)
    {
      in[i] = i * (i + 1);
      asm volatile ("" ::: "memory");
    }

  foo (out, in, 1);
#pragma GCC novector
  for (int i = 0; i < N; ++i)
    if (out[i] != in[i])
      __builtin_abort ();
  if (out[N] != 2)
    __builtin_abort ();

  foo (out + N - 1, in, -1);
  if (out[0] != in[N - 1])
    __builtin_abort ();
#pragma GCC novector
  for (int i = 1; i <= N; ++i)
    if (out[i] != 2)
      __builtin_abort ();

  return 0;
}

/* { dg-final { scan-tree-dump-times "LOOP VECTORIZED" 1 "vect" { target { { ! vect_no_align } && vect_int } } } } */