aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.9/gcc/testsuite/gcc.target/powerpc/vsx-vectorize-1.c
blob: 2538ad987d24c6ca13493061501770bf78180977 (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
/* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
/* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */
/* { dg-require-effective-target powerpc_vsx_ok } */
/* { dg-options "-mcpu=power7 -O2 -ftree-vectorize -fno-vect-cost-model -fdump-tree-vect-details" } */

/* Taken from vect/vect-align-1.c.  */
#include <stdlib.h>
#include <stdarg.h>

/* Compile time known misalignment. Cannot use loop peeling to align
   the store.  */

#define N 16

struct foo {
  char x;
  int y[N];
} __attribute__((packed));

int x[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};

__attribute__ ((noinline)) int
main1 (struct foo * __restrict__ p)
{
  int i;

  for (i = 0; i < N; i++)
    {
      p->y[i] = x[i];
    }

  /* check results:  */
  for (i = 0; i < N; i++)
    {
      if (p->y[i] != x[i])
	abort ();
    }
  return 0;
}


int main (void)
{
  int i;
  struct foo *p = malloc (2*sizeof (struct foo));
  
  main1 (p);
  return 0;
}

/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
/* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 1 "vect" } } */
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
/* { dg-final { cleanup-tree-dump "vect" } } */