/* { dg-do compile } */ /* { dg-options "-O2 -fno-tree-fre -fdump-tree-vrp1-details" } */ /* Compile with -fno-tree-fre -O2 to prevent CSEing *p. */ foo (int a, int *p) { int x = *p + 2; int y = *p - 1; int z = *p + 9; /* This should be folded to if (1), but only one ASSERT_EXPR should be inserted. */ if (p) a = x + y + z; else a = x - y; return a; } /* Target with fno-delete-null-pointer-checks should not fold checks */ /* { dg-final { scan-tree-dump-times "Folding predicate p_.*to 1" 1 "vrp1" { target { ! keeps_null_pointer_checks } } } } */ /* { dg-final { scan-tree-dump-times "PREDICATE: p_.* ne_expr 0" 1 "vrp1" { target { ! keeps_null_pointer_checks } } } } */ /* { dg-final { scan-tree-dump-times "Folding predicate p_.*to 1" 0 "vrp1" { target { keeps_null_pointer_checks } } } } */ /* { dg-final { cleanup-tree-dump "vrp1" } } */