gcc/testsuite/gcc.dg/vect/pr49478.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_int } */
   3
   4 #include <stdarg.h>
   5
   6 #define N 64
   7
   8 unsigned char X[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63};
   9
  10 unsigned int
  11 foo (int len) {
  12   int i;
  13   unsigned int result = 0;
  14   unsigned short prod;
  15
  16   for (i=0; i<len; i++) {
  17     prod = X[i] * 15;
  18     result += prod;
  19   }
  20   return result;
  21 }
  22
  23 /* { dg-final { cleanup-tree-dump "vect" } } */
  24