gcc/testsuite/gcc.dg/vect/Os-vect-95.c

   1 /* { dg-require-effective-target vect_float } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 256
   7
   8 void bar (float *pd, float *pa, float *pb, float *pc)
   9 {
  10   int i;
  11
  12   /* check results:  */
  13   for (i = 0; i < N; i++)
  14     {
  15       if (pa[i] != (pb[i] * pc[i]))
  16         abort ();
  17       if (pd[i] != 5.0)
  18         abort ();
  19     }
  20
  21   return;
  22 }
  23
  24
  25 int
  26 main1 (int n, float * __restrict__ pd, float * __restrict__ pa, float * __restrict__ pb, float * __restrict__ pc)
  27 {
  28   int i;
  29
  30   for (i = 0; i < n; i++)
  31     {
  32       pa[i] = pb[i] * pc[i];
  33       pd[i] = 5.0;
  34     }
  35
  36   bar (pd,pa,pb,pc);
  37
  38   return 0;
  39 }
  40
  41 int main (void)
  42 {
  43   int i;
  44   float a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
  45   float d[N+1] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
  46   float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
  47   float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
  48
  49   check_vect ();
  50
  51   main1 (N,&d[1],a,b,c);
  52   main1 (N-2,&d[1],a,b,c);
  53
  54   return 0;
  55 }
  56
  57 /* { dg-final { scan-tree-dump-times "vectorized 0 loops" 2 "vect" } } */
  58 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
  59 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 0 "vect" } } */