gcc/testsuite/gcc.dg/vect/vect-56a.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 -mmmx" { target i?86-*-* x86_64-*-* } } */
   5
   6 #include <stdarg.h>
   7 #include "tree-vect.h"
   8
   9 #define N 256
  10
  11 typedef short ashort __attribute__ ((__aligned__(16)));
  12
  13 void bar (ashort *pa, ashort *pb, ashort *pc)
  14 {
  15   int i;
  16
  17   /* check results:  */
  18   for (i = 0; i < N/2; i++)
  19     {
  20       if (pa[i] != (pb[i+1] + pc[i+1]))
  21         abort ();
  22     }
  23
  24   return;
  25 }
  26
  27
  28 int
  29 main1 (ashort * __restrict__ pa, ashort * __restrict__ pb, ashort * __restrict__ pc)
  30 {
  31   int i;
  32
  33   for (i = 0; i < N/2; i++)
  34     {
  35       pa[i] = pb[i+1] + pc[i+1];
  36     }
  37
  38   bar (pa,pb,pc);
  39
  40   return 0;
  41 }
  42
  43 int main (void)
  44 {
  45   int i;
  46   ashort a[N];
  47   ashort b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
  48   ashort c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
  49
  50   check_vect ();
  51
  52   main1 (a,b,c);
  53   return 0;
  54 }
  55
  56 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */