gcc/testsuite/gcc.dg/tree-ssa/ifc-pr69489-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-S -O2 -ftree-vectorize -fdump-tree-ifcvt-stats-blocks-details" { target *-*-* } } */
   3
   4 double
   5 foo (const char *u, const char *v, long n)
   6 {
   7   long i, n1 = 0, n2 = 0;
   8
   9   for (i = 0; i < n; i++)
  10     {
  11       n2 += (u[i] && !v[i]);
  12       n1 += (!u[i] && v[i]);
  13     }
  14   return (2.0 * n2 * n1);
  15 }
  16
  17 /* { dg-final { scan-tree-dump-times "Applying if-conversion" 1 "ifcvt" } } */
  18
  19 /* We insert into code
  20    if (LOOP_VECTORIZED (...))
  21    which is folded by vectorizer.  Both outgoing edges must have probability
  22    100% so the resulting profile match after folding.  */
  23 /* { dg-final { scan-tree-dump-times "Invalid sum of outgoing probabilities 200.0" 1 "ifcvt" } } */
  24 /* { dg-final { scan-tree-dump-times "Invalid sum of incoming counts" 1 "ifcvt" } } */