| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdump-tree-vrp1 -fdump-tree-dce1" } */ |
| |
| int |
| foo (int *p) |
| { |
| int a = *p; |
| int b = p != 0; |
| |
| *p = b; |
| |
| if (b) |
| return a; |
| else |
| return 0; |
| } |
| |
| /* Target with fno-delete-null-pointer-checks should not fold checks */ |
| /* { dg-final { scan-tree-dump "Folding predicate " "vrp1" { target { ! keeps_null_pointer_checks } } } } */ |
| /* { dg-final { scan-tree-dump-times "Folding predicate " 0 "vrp1" { target { keeps_null_pointer_checks } } } } */ |
| /* { dg-final { scan-tree-dump-not "b_. =" "dce1" { target { ! avr-*-* } } } } */ |
| /* { dg-final { scan-tree-dump "b_. =" "dce1" { target { avr-*-* } } } } */ |
| /* { dg-final { cleanup-tree-dump "vrp1" } } */ |
| /* { dg-final { cleanup-tree-dump "dce1" } } */ |
