old-autovect-branch/gcc/testsuite/gcc.dg/vect/vect-45.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 (const float *pa, const float *pb, const 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     }
  18
  19   return;
  20 }
  21
  22 /* Unaligned pointer accesses, with unknown alignment.
  23    The loop bound is known and divisible by the vectorization factor.
  24    Can't prove that the pointers don't alias.
  25    vect-51.c is similar to this one with one difference:
  26         the loop bound is unknown.
  27    vect-44.c is similar to this one with one difference:
  28         Aliasing is not a problem.  */
  29
  30 int
  31 main1 (float *pa, float *pb, float *pc)
  32 {
  33   int i;
  34
  35   for (i = 0; i < N; i++)
  36     {
  37       pa[i] = pb[i] * pc[i];
  38     }
  39
  40   bar (pa,pb,pc);
  41
  42   return 0;
  43 }
  44
  45 int main (void)
  46 {
  47   int i;
  48   float a[N];
  49   float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
  50   float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
  51
  52   check_vect ();
  53
  54   main1 (a,b,c);
  55   return 0;
  56 }
  57
  58 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail *-*-* } } } */
  59 /* { dg-final { cleanup-tree-dump "vect" } } */
  60