gcc/testsuite/gcc.dg/vect/vect-mult-pattern-1.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_int } */
   3 /* { dg-require-effective-target vect_shift } */
   4
   5 unsigned  long int __attribute__ ((aligned (64)))arr[100];
   6 int i;
   7
   8 void test_for_vectorshifts_via_mul_with_power2_const ()
   9 {
  10   for (i=0; i<=99; i++)
  11     arr[i] = arr[i] * 4;
  12 }
  13
  14 void test_for_vectorshifts_via_mul_with_negative_power2_const ()
  15 {
  16   for (i=0; i<=99; i++)
  17     arr[i] = arr[i] * (-4);
  18 }
  19
  20 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect"  {target  { ! { vect_int_mult } } } } } */
  21 /* { dg-final { scan-tree-dump-times "vect_recog_mult_pattern: detected" 2 "vect" {target  { ! { vect_int_mult } } } } } */