Nothing major

[libfirm] / testprograms / dead_block_example.c

diff --git a/testprograms/dead_block_example.c b/testprograms/dead_block_example.c
index 2c1ad05..1809a44 100644 (file)
--- a/testprograms/dead_block_example.c
+++ b/testprograms/dead_block_example.c
@@ -46,19 +46,15 @@ int main(int argc, char **argv)
 {
   ir_graph *irg;          /* this variable contains the irgraph */
   type_class *owner;      /* the class in which this method is defined */
-  type_method *proc_main; /* typeinformation for the method main */
+  type_method *proc_main; /* type information for the method main */
   entity *ent;            /* represents this method as entity of owner */
   ir_node *c1, *c2, *cond, *f, *t, *endBlock, *Block1, *jmp, *Block2,
           *deadBlock, *x;
 
-
   /* init library */
   init_firm ();
-  set_opt_constant_folding (1);
-  set_optimize(1);
-  set_opt_cse(1);
-  set_opt_dead_node_elimination(1);
 
+  set_opt_cse(0);  /* there is a bug: first and start block are cse!! @@@ */
 
   /* 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
@@ -70,7 +66,7 @@ int main(int argc, char **argv)
 #define METHODNAME "main"
 #define NRARGS 0
 #define NRES 0
-  printf("creating an IR graph: %s...\n", CLASSNAME);
+  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)),
@@ -83,67 +79,64 @@ int main(int argc, char **argv)
 
   irg = new_ir_graph (ent, NUM_OF_LOCAL_VARS);
 
-  /* two make a condition  */
+  /* to make a condition  */
   c1 = new_Const (mode_i, tarval_from_long (mode_i, 1));
   c2 = new_Const (mode_i, tarval_from_long (mode_i, 2));
+  set_value(0, c2);
 
   cond = new_Cond(new_Proj(new_Cmp(c1, c2), mode_b, Eq));
   f = new_Proj(cond, mode_X, 0);
   t = new_Proj(cond, mode_X, 1);
-  mature_block(irg->current_block);
+  mature_block(get_irg_current_block(irg));
 
   /* end block to add jmps */
-  endBlock = new_Block();
+  endBlock = new_immBlock();
 
   /* Block 1 */
-  Block1 = new_Block();
+  Block1 = new_immBlock();
   add_in_edge(Block1, t);
   mature_block(Block1);
   jmp = new_Jmp();
   add_in_edge(endBlock, jmp);
 
   /* Block 2 */
-  Block2 = new_Block();
+  Block2 = new_immBlock();
   add_in_edge(Block2, f);
   mature_block(Block2);
-  set_value(0, c2);
   jmp = new_Jmp();
   add_in_edge(endBlock, jmp);
 
   /* dead Block */
-  deadBlock = new_Block();
+  deadBlock = new_immBlock();
   mature_block(deadBlock);
   jmp = new_Jmp();
   add_in_edge(endBlock, jmp);
 
+  /* finish end block */
   switch_block(endBlock);
   {
     ir_node *in[1];
     in[0] = get_value(0, mode_i);
+    get_store();
     x = new_Return (get_store(), 1, in);
   }
-  mature_block (irg->current_block);
+  mature_block (get_irg_current_block(irg));
 
-  add_in_edge (irg->end_block, x);
-  mature_block (irg->end_block);
-
-  /* verify the graph */
-  vrfy_graph(irg);
+  add_in_edge (get_irg_end_block(irg), x);
+  mature_block (get_irg_end_block(irg));
 
-  printf("\nDone building the graph.\n");
+  printf("Optimizing ...\n");
   local_optimize_graph (irg);
-  printf("\nDone local optimization.\n");
-  set_opt_constant_folding (1);
-  set_optimize(0);
-  set_opt_cse(1);
   dead_node_elimination (irg);
-  printf("Dumping the graph and a control flow graph.\n");
 
+  /* verify the graph */
+  irg_vrfy(irg);
+
+  printf("Dumping the graph and a control flow graph.\n");
   dump_ir_block_graph (irg);
   dump_cfg (irg);
-
-  printf("use xvcg to view these graphs:\n");
-  printf("/ben/goetz/bin/xvcg GRAPHNAME\n");
+  printf("Use xvcg to view these graphs:\n");
+  printf("/ben/goetz/bin/xvcg GRAPHNAME\n\n");
 
   return (0);
 }