gcc/testsuite/gcc.dg/vect/vect-108.c

   1 /* { dg-require-effective-target vect_int_mult } */
   2 /* { dg-additional-options "-fdump-tree-optimized-details-blocks" } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 16
   8
   9 int ic[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
  10 int ib[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
  11 int ia[N];
  12
  13 __attribute__ ((noinline)) int
  14 main1 (void)
  15 {
  16   int i;
  17
  18   /* This loop is vectorized on platforms that support vect_int_mult.  */
  19   for (i = 0; i < N; i++)
  20     {
  21       ia[i] = ib[i] * ic[i];
  22     }
  23
  24   /* Check results.  */
  25 #pragma GCC novector
  26   for (i = 0; i < N; i++)
  27     {
  28       if (ia[i] != ib[i] * ic[i])
  29         abort ();
  30     }
  31
  32   return 0;
  33 }
  34
  35 int main (void)
  36 {
  37   check_vect ();
  38   return main1 ();
  39 }
  40
  41 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  42
  43 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */