ir_graph *irg; /* this variable contains the irgraph */
type *owner; /* the class in which this method is defined */
type *proc_main; /* type information for the method main */
+ type *prim_t_int;
entity *ent; /* represents this method as entity of owner */
ir_node *c1, *c2, *cond, *f, *t, *endBlock, *Block1, *jmp, *Block2,
*deadBlock, *x;
set_opt_cse(0); /* there is a bug: first and start block are cse!! @@@ */
+ /*** Make basic type information for primitive type int. ***/
+ prim_t_int = new_type_primitive(id_from_str ("int", 3), mode_i);
+
/* FIRM was designed for oo languages where all methods belong to a class.
* For imperative languages like C we view a file as a large class containing
* all functions as methods in this file.
#define CLASSNAME "DEAD_BLOCK"
#define METHODNAME "main"
#define NRARGS 0
-#define NRES 0
+#define NRES 1
printf("\nCreating an IR graph: %s...\n", CLASSNAME);
owner = new_type_class (id_from_str (CLASSNAME, strlen(CLASSNAME)));
proc_main = new_type_method(id_from_str(METHODNAME, strlen(METHODNAME)),
NRARGS, NRES);
+ set_method_res_type(proc_main, 0, prim_t_int);
ent = new_entity (owner,
id_from_str (METHODNAME, strlen(METHODNAME)),
proc_main);
add_in_edge (get_irg_end_block(irg), x);
mature_block (get_irg_end_block(irg));
+ finalize_cons (irg);
+
printf("Optimizing ...\n");
local_optimize_graph (irg);
dead_node_elimination (irg);