gcc/testsuite/gcc.dg/vect/vect-cost-model-6.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options "-O2 -ftree-vectorize -fvect-cost-model=very-cheap" } */
   3
   4 void
   5 f (int *restrict x, int *restrict y)
   6 {
   7   for (unsigned int i = 0; i < 1023; ++i)
   8     x[i] += y[i];
   9 }
  10
  11 /* { dg-final { scan-tree-dump {LOOP VECTORIZED} vect { target { vect_int && vect_partial_vectors_usage_2 } } } } */
  12 /* { dg-final { scan-tree-dump-not {LOOP VECTORIZED} vect { target { vect_int && { ! vect_partial_vectors_usage_2 } } } } } */