gcc/testsuite/gcc.dg/tree-ssa/vrp55.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-ethread-details -fdelete-null-pointer-checks" } */
   3
   4 void arf (void);
   5
   6 void
   7 fu (char *p, int x)
   8 {
   9   if (x)
  10    *p = 69;
  11   if (p)
  12     arf ();
  13 }
  14
  15 /* { dg-final { scan-tree-dump-times "Registering jump thread" 1 "ethread" { target { ! keeps_null_pointer_checks } } } } */
  16 /* { dg-final { scan-tree-dump-times "Registering jump thread" 0 "ethread" { target {   keeps_null_pointer_checks } } } } */
  17