gcc/testsuite/gcc.dg/vect/vect-mult-pattern-2.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 negative_test_for_vectorshifts_via_mul_with_const ()
   9 {
  10   for (i=0; i<=99; i++)
  11     arr[i] = arr[i] * 123;
  12 }
  13
  14 void negative_test_for_vectorshifts_via_mul_with_negative_const ()
  15 {
  16   for (i=0; i<=99; i++)
  17     arr[i] = arr[i] * (-123);
  18 }
  19
  20 void negative_test_for_vectorshifts_via_mul_with_varable (int x)
  21 {
  22   for (i=0; i<=99; i++)
  23     arr[i] = arr[i] * x;
  24 }
  25
  26
  27 /* { dg-final { scan-tree-dump-times "vectorized 0 loops" 3 "vect"  {target  { ! { vect_int_mult } } } } } */
  28 /* { dg-final { scan-tree-dump-not "vect_recog_mult_pattern: detected" "vect" {target  { ! { vect_int_mult } } } } } */