/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Christian Schaefer, Goetz Lindenmaier
-**
-** testprogram.
+* All rights reserved.
+*
+* Authors: Christian Schaefer, Goetz Lindenmaier
+*
+* testprogram.
*/
# include <stdio.h>
+# include <string.h>
+# include "irvrfy.h"
# include "irdump.h"
# include "firm.h"
*/
/**
-*** This file constructs a control flow of following shape:
-***
-***
-*** firstCondBlock
-*** / \
-*** / \
-*** |/_ _\|
-*** Block1 scnCondBlock
-*** | | |
-*** | | |
-*** | \ / \ /
-*** | Block2 Block3
-*** \ | /
-*** \ | /
-*** _\| \ / |/_
-*** nextBlock
-***
-***
-*** This is a program as, e.g.,
-***
-*** if () then
-*** { Jmp label1; } // happens anyways
-*** else
-*** { Jmp label1; } // happens anyways
-*** label1:
-*** return();
-*** Jmp label1;
-***
+* This file constructs a control flow of following shape:
+*
+*
+* firstCondBlock
+* / \
+* / \
+* |/_ _\|
+* Block1 scnCondBlock
+* | | |
+* | | |
+* | \ / \ /
+* | Block2 Block3
+* \ | /
+* \ | /
+* _\| \ / |/_
+* nextBlock
+*
+*
+* This is a program as, e.g.,
+*
+* if () then
+* { Jmp label1; } // happens anyways
+* else
+* { Jmp label1; } // happens anyways
+* label1:
+* return();
+* Jmp label1;
+*
**/
int main(int argc, char **argv)
{
+ type *prim_t_int;
ir_graph *irg; /* this variable contains the irgraph */
- type_class *owner; /* the class in which this method is defined */
- type_method *proc_main; /* type information for the method main */
+ type *owner; /* the class in which this method is defined */
+ type *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,
*scndCondBlock, *Block2, *Block3, *x;
set_optimize(1);
+ /*** Make basic type information for primitive type int. ***/
+ prim_t_int = new_type_primitive(id_from_str ("int", 3), mode_Is);
+
/* 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.
* This class now is automatically generated.
*/
-#define METHODNAME "main"
+#define METHODNAME "THREE_CFPRED_EXAMPLE_main"
#define NRARGS 1
#define NRES 1
- printf("creating an IR graph: ...\n");
+ printf("\nCreating an IR graph: ...\n");
owner = get_glob_type();
proc_main = new_type_method(id_from_str(METHODNAME, strlen(METHODNAME)),
NRARGS, NRES);
- /** @@@ setting of arg/res types misses **/
- ent = new_entity ((type *)owner,
+ set_method_param_type(proc_main, 0, prim_t_int);
+ set_method_res_type(proc_main, 0, prim_t_int);
+
+ ent = new_entity (owner,
id_from_str (METHODNAME, strlen(METHODNAME)),
- (type *)proc_main);
+ proc_main);
#define NUM_OF_LOCAL_VARS 2
irg = new_ir_graph (ent, NUM_OF_LOCAL_VARS);
/* to make a condition */
- c1 = new_Const (mode_i, tarval_from_long (mode_i, 1));
- c2 = new_Proj (get_irg_args(irg), mode_i, 0);
+ c1 = new_Const (mode_Is, tarval_from_long (mode_Is, 1));
+ c2 = new_Proj (get_irg_args(irg), mode_Is, 0);
set_value(1, c2);
cond = new_Cond(new_Proj(new_Cmp(c1, c2), mode_b, Eq));
- set_value(0, new_Const (mode_i, tarval_from_long (mode_i, 6)));
+ set_value(0, new_Const (mode_Is, tarval_from_long (mode_Is, 6)));
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);
- set_value(0, new_Const (mode_i, tarval_from_long (mode_i, 5)));
+ set_value(0, new_Const (mode_Is, tarval_from_long (mode_Is, 5)));
jmp = new_Jmp();
add_in_edge(endBlock, jmp);
/* scndCondBlock */
- scndCondBlock = new_Block();
+ scndCondBlock = new_immBlock();
add_in_edge(scndCondBlock, f);
mature_block(scndCondBlock);
- c1 = new_Const (mode_i, tarval_from_long (mode_i, 3));
- cond = new_Cond(new_Proj(new_Cmp(c1, get_value(1, mode_i)), mode_b, Eq));
+ c1 = new_Const (mode_Is, tarval_from_long (mode_Is, 3));
+ cond = new_Cond(new_Proj(new_Cmp(c1, get_value(1, mode_Is)), 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));
/* Block 2 */
- Block2 = new_Block();
+ Block2 = new_immBlock();
add_in_edge(Block2, f);
mature_block(Block2);
jmp = new_Jmp();
add_in_edge(endBlock, jmp);
/* Block 3 */
- Block3 = new_Block();
+ Block3 = new_immBlock();
add_in_edge(Block3, t);
mature_block(Block3);
jmp = new_Jmp();
switch_block(endBlock);
{
ir_node *in[1];
- in[0] = get_value(0, mode_i);
+ in[0] = get_value(0, mode_Is);
x = new_Return (get_store(), 1, in);
}
- mature_block (irg->current_block);
+ mature_block (get_irg_current_block(irg));
/* finish the Block with the end node */
- add_in_edge (irg->end_block, x);
- mature_block (irg->end_block);
-
- printf("\nDone building the graph.\n");
+ add_in_edge (get_irg_end_block(irg), x);
+ mature_block (get_irg_end_block(irg));
/* verify the graph */
irg_vrfy(irg);
+ finalize_cons (irg);
+
+ printf("Optimizing ...\n");
+ dead_node_elimination(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);
}