| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdump-tree-dce2 -w" } */ |
| |
| /* The arithmetic using usecount should be gone. */ |
| /* { dg-final { scan-tree-dump-times "usecount_\[0-9\]+ = usecount_\[0-9\]+ . 1;" 0 "dce2"} } */ |
| |
| typedef union tree_node *tree; |
| typedef union gimple_statement_d *gimple; |
| extern const int tree_code_type[]; |
| union tree_node |
| { |
| int code:16; |
| }; |
| typedef struct immediate_use_iterator_d |
| { |
| } |
| imm_use_iterator; |
| void |
| insert_debug_temp_for_var_def (gimple stmt) |
| { |
| gimple def_stmt = ((void *) 0); |
| int usecount = 0; |
| tree value = ((void *) 0); |
| for (; arf ();) |
| { |
| if (!gimple_debug_bind_p (stmt)) |
| continue; |
| if (usecount++) |
| break; |
| unsigned char no_value = 0; |
| if (!gimple_bb (def_stmt)) |
| no_value = 1; |
| if (!no_value) |
| value = gimple_assign_rhs_to_tree (); |
| } |
| if (value) |
| { |
| if ((tree_code_type[(int) (((value)->code))] == 42) |
| || (usecount == 1 && (is_gimple_min_invariant (value)))) |
| value = unshare_expr (value); |
| } |
| } |
| |
| |
