gcc/testsuite/gcc.dg/vect/vect-30.c

   1 /* { dg-do run { target powerpc*-*-* } } */
   2 /* { dg-do run { target i?86-*-* x86_64-*-* } } */
   3 /* { dg-options "-O2 -ftree-vectorize -fdump-tree-vect-stats -maltivec" { target powerpc*-*-* } } */
   4 /* { dg-options "-O2 -ftree-vectorize -fdump-tree-vect-stats -msse2" { target i?86-*-* x86_64-*-* } } */
   5
   6 #include <stdarg.h>
   7 #include "tree-vect.h"
   8
   9 #define N 16
  10
  11 float b[N] = {0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30};
  12 float a[N];
  13 float c[N];
  14
  15 int main1 (int n)
  16 {
  17   int i=0;
  18
  19   /* Vectorized: unknown loop bound.  */
  20   while (n--) {
  21     a[i] = b[i];
  22     i++;
  23   }
  24
  25   /* check results:  */
  26   for (i = 0; i < n; i++)
  27     {
  28       if (a[i] != b[i])
  29         abort ();
  30     }
  31
  32   return 0;
  33 }
  34
  35 int main2 (unsigned int n)
  36 {
  37   int i=0;
  38   int nn = n;
  39
  40   /* Vectorized: unknown loop bound.  */
  41   while (n--) {
  42     c[i] = b[i];
  43     i++;
  44   }
  45
  46   /* check results:  */
  47   for (i = 0; i < nn; i++)
  48     {
  49       if (c[i] != b[i])
  50         abort ();
  51     }
  52
  53   return 0;
  54 }
  55
  56 int main (void)
  57 {
  58   check_vect ();
  59
  60   main1 (N);
  61   main2 (N);
  62   return 0;
  63 }
  64
  65 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { xfail *-*-* } } } */