gcc/testsuite/gcc.dg/vect/no-vfa-vect-51.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 __attribute__ ((noinline))
   9 void bar (const float *pa, const float *pb, const float *pc)
  10 {
  11   int i;
  12
  13   /* check results:  */
  14   for (i = 0; i < N; i++)
  15     {
  16       if (pa[i] != (pb[i] * pc[i]))
  17         abort ();
  18     }
  19
  20   return;
  21 }
  22
  23 /* Unaligned pointer accesses, with unknown alignment.
  24    The loop bound is unknown.
  25    Can't prove that the pointers don't alias.
  26    vect-45.c is similar to this one with one difference:
  27         the loop bound is known.
  28    vect-50.c is similar to this one with one difference:
  29         Aliasing is not a problem.  */
  30
  31 __attribute__ ((noinline)) int
  32 main1 (int n, float *pa, float *pb, float *pc)
  33 {
  34   int i;
  35
  36   for (i = 0; i < n; i++)
  37     {
  38       pa[i] = pb[i] * pc[i];
  39     }
  40
  41   bar (pa,pb,pc);
  42
  43   return 0;
  44 }
  45
  46 int main (void)
  47 {
  48   int i;
  49   float a[N];
  50   float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
  51   float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
  52
  53   check_vect ();
  54
  55   main1 (N,a,b,c);
  56   return 0;
  57 }
  58
  59 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail *-*-* } } } */