| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdump-tree-dom2-details -w -fdisable-tree-thread2" } */ |
| typedef long unsigned int size_t; |
| union tree_node; |
| typedef union tree_node *tree; |
| typedef union gimple_statement_d *gimple; |
| typedef const union gimple_statement_d *const_gimple; |
| union gimple_statement_d |
| { |
| unsigned num_ops; |
| tree exp; |
| }; |
| |
| unsigned int x; |
| static inline tree |
| gimple_op (const_gimple gs, unsigned i) |
| { |
| if (!(i < gs->num_ops)) |
| abort (); |
| return gs->exp; |
| } |
| |
| unsigned char |
| scan_function (gimple stmt) |
| { |
| unsigned i; |
| for (i = 0; i < stmt->num_ops - 3 ; i++) |
| gimple_call_arg (stmt, i); |
| gimple_op (stmt, 1); |
| } |
| |
| /* The test which bypasses the loop is simplified prior to DOM to check |
| that stmt->num_ops - 3 != 0. When that test is false, we can derive |
| a value for stmt->num_ops. That in turn allows us to thread the jump |
| for the conditional at the start of the call to gimple_op. */ |
| /* { dg-final { scan-tree-dump-times "Threaded" 1 "dom2"} } */ |
