-/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Christian Schaefer, Goetz Lindenmaier
-**
-** testprogram.
-*/
+/*
+ * Project: libFIRM
+ * File name: testprograms/irr_cf_example.c
+ * Purpose: Test Phi construction with irregular control flow.
+ * 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 <stdio.h>
+# include <string.h>
+# include "irvrfy.h"
# include "irdump.h"
# include "firm.h"
-/*
- * irregular control flow
- */
/**
-*** This file constructs a control flow of following shape:
-***
-*** StartBlock
-*** |
-*** \|/
-*** Block ---> Block
-*** | |
-*** \|/ \|/
-*** Block ---> Block
-*** | |
-*** \|/ \|/
-*** Block ---> Block
-*** |
-*** \|/
-*** EndBlock
-***
-*** This is a program as, e.g.,
-***
-*** switch (expr){
-*** case 1:
-*** case 2:
-*** break;
-*** default:
-*** }
-*** return
+* This file constructs a control flow of following shape:
+*
+* StartBlock
+* |
+* \|/
+* Block ---> Block
+* | |
+* \|/ \|/
+* Block ---> Block
+* | |
+* \|/ \|/
+* Block ---> Block
+* |
+* \|/
+* EndBlock
+*
+* This is a program as, e.g.,
+*
+* switch (expr){
+* case 1:
+* case 2:
+* break;
+* default:
+* }
+* return
**/
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 */
- entity *ent; /* represents this method as entity of owner */
- ir_node *expr, *c1, *c2, *cond, *f, *t, *jmp, *x;
+ ir_graph *irg; /* this variable contains the irgraph */
+ type *owner; /* the class in which this method is defined */
+ type *proc_main; /* typeinformation for the method main */
+ entity *ent; /* represents this method as entity of owner */
+ ir_node *expr, *c1, *c2, *cond, *f, *t, *jmp, *x;
- printf("creating an IR graph: IRR_CF...\n");
+ printf("\nCreating an IR graph: IRR_CF...\n");
/* init library */
- init_firm ();
+ init_firm (NULL);
+ set_opt_constant_folding(0); /* so that stupid test are not evaluated. */
/* 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
#define NRARGS 0
#define NRES 0
- owner = new_type_class (id_from_str (CLASSNAME, strlen(CLASSNAME)));
- proc_main = new_type_method(id_from_str(METHODNAME, strlen(METHODNAME)),
+ owner = new_type_class (new_id_from_chars (CLASSNAME, strlen(CLASSNAME)));
+ proc_main = new_type_method(new_id_from_chars(METHODNAME, strlen(METHODNAME)),
NRARGS, NRES);
ent = new_entity ((type *)owner,
- id_from_str (METHODNAME, strlen(METHODNAME)),
+ new_id_from_chars (METHODNAME, strlen(METHODNAME)),
(type *)proc_main);
-
+ get_entity_ld_name(ent);
#define NUM_OF_LOCAL_VARS 0
irg = new_ir_graph (ent, NUM_OF_LOCAL_VARS);
/* two make two conditionals that represent a switch */
- expr = new_Const (mode_i, tarval_from_long (mode_i, 0));
- c1 = new_Const (mode_i, tarval_from_long (mode_i, 1));
- c2 = new_Const (mode_i, tarval_from_long (mode_i, 2));
+ expr = new_Const (mode_Is, new_tarval_from_long (0, mode_Is));
+ c1 = new_Const (mode_Is, new_tarval_from_long (1, mode_Is));
+ c2 = new_Const (mode_Is, new_tarval_from_long (2, mode_Is));
- cond = new_Cond(new_Proj(new_Cmp(expr, c1), mode_b, Eq));
+ cond = new_Cond(new_Proj(new_Cmp(expr, c1), mode_b, pn_Cmp_Eq));
f = new_Proj(cond, mode_X, 0);
t = new_Proj(cond, mode_X, 1);
- mature_block(irg->current_block);
+ mature_immBlock(get_irg_current_block(irg));
- new_Block();
- add_in_edge(irg->current_block, t);
+ new_immBlock();
+ add_immBlock_pred(get_irg_current_block(irg), t);
jmp = new_Jmp();
- mature_block(irg->current_block);
+ mature_immBlock(get_irg_current_block(irg));
- new_Block();
- add_in_edge(irg->current_block, f);
- cond = new_Cond(new_Proj(new_Cmp(expr, c2), mode_b, Eq));
+ new_immBlock();
+ add_immBlock_pred(get_irg_current_block(irg), f);
+ cond = new_Cond(new_Proj(new_Cmp(expr, c2), mode_b, pn_Cmp_Eq));
f = new_Proj(cond, mode_X, 0);
t = new_Proj(cond, mode_X, 1);
- mature_block(irg->current_block);
+ mature_immBlock(get_irg_current_block(irg));
- new_Block();
- add_in_edge(irg->current_block, t);
- add_in_edge(irg->current_block, jmp);
+ new_immBlock();
+ add_immBlock_pred(get_irg_current_block(irg), t);
+ add_immBlock_pred(get_irg_current_block(irg), jmp);
jmp = new_Jmp();
- mature_block(irg->current_block);
+ mature_immBlock(get_irg_current_block(irg));
- new_Block();
- add_in_edge(irg->current_block, f);
+ new_immBlock();
+ add_immBlock_pred(get_irg_current_block(irg), f);
t = new_Jmp();
- mature_block(irg->current_block);
+ mature_immBlock(get_irg_current_block(irg));
- new_Block();
- add_in_edge(irg->current_block, t);
- add_in_edge(irg->current_block, jmp);
- {
- ir_node *in[0]; /* this is the array containing the return parameters */
- x = new_Return (get_store(), 0, in);
- }
- mature_block (irg->current_block);
+ new_immBlock();
+ add_immBlock_pred(get_irg_current_block(irg), t);
+ add_immBlock_pred(get_irg_current_block(irg), jmp);
- add_in_edge (irg->end_block, x);
- mature_block (irg->end_block);
+ x = new_Return (get_store(), 0, NULL);
- /* verify the graph */
- irg_vrfy(irg);
+ mature_immBlock (get_irg_current_block(irg));
+ add_immBlock_pred (get_irg_end_block(irg), x);
+ mature_immBlock (get_irg_end_block(irg));
+
+ irg_finalize_cons (irg);
+
+ printf("Optimizing ...\n");
dead_node_elimination(irg);
- printf("\nDone building the graph.\n");
- printf("Dumping the graph and a control flow graph.\n");
- dump_ir_block_graph (irg);
- dump_cfg (irg);
+ /* verify the graph */
+ irg_vrfy(irg);
- printf("use xvcg to view these graphs:\n");
- printf("/ben/goetz/bin/xvcg GRAPHNAME\n");
+ printf("Dumping the graph and a control flow graph.\n");
+ char *dump_file_suffix = "";
+ dump_ir_block_graph (irg, dump_file_suffix);
+ dump_cfg (irg, dump_file_suffix);
+ printf("Use xvcg to view these graphs:\n");
+ printf("/ben/goetz/bin/xvcg GRAPHNAME\n\n");
return (0);
}
projects / libfirm / blobdiff