gcc/testsuite/gcc.dg/vect/ggc-pr37574.c

   1 /* { dg-do compile } */
   2
   3 #include <stdarg.h>
   4
   5 unsigned short in[40 +128];
   6 int main (void) {
   7   int i = 0, j = 0;
   8   unsigned int diff;
   9   unsigned int s=0,sum=0;
  10   for (i = 0; i < 40;i++)
  11    {
  12      diff = 0;
  13      for (j = 0; j < 128;j+=8)
  14        diff += in[j+i];
  15      s += ((unsigned short)diff>>3);
  16    }
  17    if (s != sum)
  18      return -1;
  19    return 0;
  20 }
  21
  22 /* { dg-final { cleanup-tree-dump "vect" } } */