| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdisable-tree-evrp -fdump-tree-vrp1 -fdisable-tree-ethread -fdisable-tree-thread1" } */ |
| |
| int baz (void); |
| |
| int |
| foo (int i, int j, int a) |
| { |
| if (i >= 10) |
| if (i <= 30) |
| if (i == j) |
| { |
| a--; |
| |
| /* This should fold to 'if (0)'. */ |
| if (i < 0) |
| i = baz (); |
| |
| /* This should fold to 'if (1)'. */ |
| if (j > 0) |
| a--; |
| |
| /* This should fold to 'if (0)'. */ |
| if (i != j) |
| return 0; |
| } |
| |
| return i + a + j; |
| } |
| |
| /* { dg-final { scan-tree-dump-times "Folding predicate \[i|j\]_\[0-9\]+.*0 to 0" 1 "vrp1" } } */ |
| /* { dg-final { scan-tree-dump-times "Folding predicate \[i|j\]_\[0-9\]+.*0 to 1" 1 "vrp1" } } */ |
| /* { dg-final { scan-tree-dump-times "Folding predicate i_\[0-9]+.*j_\[0-9\]+.* to 0" 1 "vrp1" } } */ |
