-/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Christian Schaefer, Goetz Lindenmaier
-**
-** testprogram.
-*/
-
-# include <stdio.h>
-
-# include "irdump.h"
-# include "firm.h"
-
/*
- * a dead block / unreachable code.
+ * Project: libFIRM
+ * File name: testprograms/three_cfpred_example.c
+ * Purpose: Construct a block with more than two predecessors.
+ * Author: Christian Schaefer, Goetz Lindenmaier
+ * Modified by:
+ * Created:
+ * CVS-ID: $Id$
+ * Copyright: (c) 1999-2003 Universität Karlsruhe
+ * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
*/
+#include <stdio.h>
+#include <string.h>
+
+#include <libfirm/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;
-***
-**/
-
-int main(int argc, char **argv)
+ * 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(void)
{
+ const char *suffix = "";
+ ir_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 */
- entity *ent; /* represents this method as entity of owner */
+ ir_type *owner; /* the class in which this method is defined */
+ ir_type *proc_main; /* ir_type information for the method main */
+ ir_entity *ent; /* represents this method as ir_entity of owner */
ir_node *c1, *c2, *cond, *f, *t, *endBlock, *Block1, *jmp,
*scndCondBlock, *Block2, *Block3, *x;
/* init library */
- init_firm ();
+ init_firm(NULL);
set_optimize(1);
+ /*** Make basic ir_type information for primitive ir_type int. ***/
+ prim_t_int = new_type_primitive(new_id_from_chars("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: THREE_CFPRED_EXAMPLE ...\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,
- id_from_str (METHODNAME, strlen(METHODNAME)),
- (type *)proc_main);
+ proc_main = new_type_method(new_id_from_chars(METHODNAME, strlen(METHODNAME)),
+ NRARGS, NRES);
+ set_method_param_type(proc_main, 0, prim_t_int);
+ set_method_res_type(proc_main, 0, prim_t_int);
+
+ ent = new_entity(owner,
+ new_id_from_chars(METHODNAME, strlen(METHODNAME)),
+ proc_main);
#define NUM_OF_LOCAL_VARS 2
- irg = new_ir_graph (ent, NUM_OF_LOCAL_VARS);
+ 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, new_tarval_from_long(1, mode_Is));
+ 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)));
- f = new_Proj(cond, mode_X, 0);
- t = new_Proj(cond, mode_X, 1);
- mature_block(irg->current_block);
+ cond = new_Cond(new_Proj(new_Cmp(c1, c2), mode_b, pn_Cmp_Eq));
+ set_value(0, new_Const(mode_Is, new_tarval_from_long(6, mode_Is)));
+ f = new_Proj(cond, mode_X, pn_Cond_false);
+ t = new_Proj(cond, mode_X, pn_Cond_true);
+ mature_immBlock(get_irg_current_block(irg));
/* end block to add jmps */
- endBlock = new_Block();
+ endBlock = new_immBlock();
/* Block 1 */
- Block1 = new_Block();
- add_in_edge(Block1, t);
- mature_block(Block1);
- set_value(0, new_Const (mode_i, tarval_from_long (mode_i, 5)));
+ Block1 = new_immBlock();
+ add_immBlock_pred(Block1, t);
+ mature_immBlock(Block1);
+ set_value(0, new_Const(mode_Is, new_tarval_from_long(5, mode_Is)));
jmp = new_Jmp();
- add_in_edge(endBlock, jmp);
+ add_immBlock_pred(endBlock, jmp);
/* scndCondBlock */
- scndCondBlock = new_Block();
- 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));
- f = new_Proj(cond, mode_X, 0);
- t = new_Proj(cond, mode_X, 1);
- mature_block(irg->current_block);
+ scndCondBlock = new_immBlock();
+ add_immBlock_pred(scndCondBlock, f);
+ mature_immBlock(scndCondBlock);
+ c1 = new_Const(mode_Is, new_tarval_from_long(3, mode_Is));
+ cond = new_Cond(new_Proj(new_Cmp(c1, get_value(1, mode_Is)), mode_b, pn_Cmp_Eq));
+ f = new_Proj(cond, mode_X, pn_Cond_false);
+ t = new_Proj(cond, mode_X, pn_Cond_true);
+ mature_immBlock(get_irg_current_block(irg));
/* Block 2 */
- Block2 = new_Block();
- add_in_edge(Block2, f);
- mature_block(Block2);
+ Block2 = new_immBlock();
+ add_immBlock_pred(Block2, f);
+ mature_immBlock(Block2);
jmp = new_Jmp();
- add_in_edge(endBlock, jmp);
+ add_immBlock_pred(endBlock, jmp);
/* Block 3 */
- Block3 = new_Block();
- add_in_edge(Block3, t);
- mature_block(Block3);
+ Block3 = new_immBlock();
+ add_immBlock_pred(Block3, t);
+ mature_immBlock(Block3);
jmp = new_Jmp();
- add_in_edge(endBlock, jmp);
+ add_immBlock_pred(endBlock, jmp);
/* finish the end Block */
- switch_block(endBlock);
+ set_cur_block(endBlock);
{
ir_node *in[1];
- in[0] = get_value(0, mode_i);
- x = new_Return (get_store(), 1, in);
+ in[0] = get_value(0, mode_Is);
+ x = new_Return(get_store(), 1, in);
}
- mature_block (irg->current_block);
+ mature_immBlock(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_immBlock_pred(get_irg_end_block(irg), x);
+ mature_immBlock(get_irg_end_block(irg));
/* verify the graph */
irg_vrfy(irg);
+ 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");
+ dump_ir_block_graph(irg, suffix);
+ dump_cfg(irg, suffix);
+ printf("Use ycomp to view these graphs:\n");
+ printf("ycomp THREE_CFPRED_EXAMPLE_main.vcg\n\n");
+ printf("ycomp THREE_CFPRED_EXAMPLE_main-cfg.vcg\n\n");
- return (0);
+ return(0);
}
projects / libfirm / blobdiff