gnu/dist/gcc4/gcc/testsuite/gcc.dg/vect/vect-93.c

   1 /* { dg-require-effective-target vect_float } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 3001
   7
   8
   9 int
  10 main1 (float *pa)
  11 {
  12   int i;
  13
  14   for (i = 0; i < 3001; i++)
  15     {
  16       pa[i] = 2.0;
  17     }
  18
  19   /* check results:  */
  20   for (i = 0; i < 3001; i++)
  21     {
  22       if (pa[i] != 2.0)
  23         abort ();
  24     }
  25
  26   for (i = 1; i <= 10; i++)
  27     {
  28       pa[i] = 3.0;
  29     }
  30
  31   /* check results:  */
  32   for (i = 1; i <= 10; i++)
  33     {
  34       if (pa[i] != 3.0)
  35         abort ();
  36     }
  37
  38   return 0;
  39 }
  40
  41 int main (void)
  42 {
  43   int i;
  44   float a[N] __attribute__ ((__aligned__(16)));
  45   float b[N] __attribute__ ((__aligned__(16)));
  46
  47   check_vect ();
  48
  49   /* from bzip2: */
  50   for (i=0; i<N; i++) b[i] = i;
  51   a[0] = 0;
  52   for (i = 1; i <= 256; i++) a[i] = b[i-1];
  53
  54   /* check results:  */
  55   for (i = 1; i <= 256; i++)
  56     {
  57       if (a[i] != i-1)
  58         abort ();
  59     }
  60   if (a[0] != 0)
  61     abort ();
  62
  63   main1 (a);
  64
  65   return 0;
  66 }
  67
  68 /* in main1 */
  69 /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" } } */
  70 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 2 "vect" { target vect_no_align } } } */
  71 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 3 "vect" { xfail vect_no_align } } } */
  72
  73 /* in main */
  74 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail vect_no_align } } } */
  75 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { xfail vect_no_align } } } */
  76 /* { dg-final { cleanup-tree-dump "vect" } } */