| /* { dg-do compile } */ |
| /* { dg-options "-fwrapv -O1 -fno-tree-fre -fdisable-tree-evrp -ftree-vrp -fdump-tree-vrp1 -fdisable-tree-ethread -fdisable-tree-thread1" } */ |
| |
| extern void abort (); |
| extern void exit (int); |
| |
| int f (int a) { |
| if (a != 0) { |
| a = a > 0 ? a : -a; |
| if (a == 0) |
| return 1; |
| return 0; |
| } |
| return 0; |
| } |
| |
| int g (int b) { |
| if (b != 0) { |
| b = b > 0 ? b : -b; |
| if (b != 0) |
| return 0; |
| } |
| return 1; |
| } |
| |
| /* { dg-final { scan-tree-dump "Folding predicate a_. == 0 to 0" "vrp1" } } */ |
| /* { dg-final { scan-tree-dump "Folding predicate b_. != 0 to 1" "vrp1" } } */ |
