-/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-* All rights reserved.
-*
-* Authors: Christian Schaefer, Goetz Lindenmaier
-*
-* testprogram.
-*/
+/*
+ * Project: libFIRM
+ * File name: testprograms/dead_block_example.c
+ * Purpose: Test unreachable code elimination.
+ * 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 <stdio.h>
-# include <string.h>
-# include "irvrfy.h"
-# include "irdump.h"
-# include "firm.h"
+#include <libfirm/firm.h>
/*
* a dead block / unreachable code.
* |/_ _\|
* Block1 Block2 deadBlock
* \ | /
-* \ | /
-* _\| \ / |/_
+* \ | /
+* _\| \ / |/_
* nextBlock
*
*
* This is a program as, e.g.,
*
* if () then
-* { Jmp label1; } // happens anyways
+* { Jmp label1; } // happens anyways
* else
-* { Jmp label1; } // happens anyways
+* { Jmp label1; } // happens anyways
* label1:
* return();
* Jmp label1;
*
**/
-int main(int argc, char **argv)
+int main(void)
{
+ char *dump_file_suffix = "";
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_type *owner; /* the class in which this method is defined */
+ ir_type *proc_main; /* ir_type information for the method main */
+ ir_type *prim_t_int;
+ ir_entity *ent; /* represents this method as ir_entity of owner */
ir_node *c1, *c2, *cond, *f, *t, *endBlock, *Block1, *jmp, *Block2,
*deadBlock, *x;
/* init library */
init_firm (NULL);
- /*** Make basic type information for primitive type int. ***/
- prim_t_int = new_type_primitive(id_from_str ("int", 3), mode_Is);
+ /*** 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.
* Therefore we define a class "empty" according to the file name
- * with a method main as an entity.
+ * with a method main as an ir_entity.
*/
#define CLASSNAME "DEAD_BLOCK"
#define METHODNAME "main"
#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)),
+ 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);
set_method_res_type(proc_main, 0, prim_t_int);
ent = new_entity (owner,
- id_from_str (METHODNAME, strlen(METHODNAME)),
+ new_id_from_chars (METHODNAME, strlen(METHODNAME)),
proc_main);
get_entity_ld_name(ent); /* To enforce name mangling for vcg graph name */
#define NUM_OF_LOCAL_VARS 1
c2 = new_Const (mode_Is, new_tarval_from_long (2, mode_Is));
set_value(0, c2);
- cond = new_Cond(new_Proj(new_Cmp(c1, c2), mode_b, Eq));
+ cond = new_Cond(new_Proj(new_Cmp(c1, c2), mode_b, pn_Cmp_Eq));
f = new_Proj(cond, mode_X, 0);
t = new_Proj(cond, mode_X, 1);
- mature_block(get_irg_current_block(irg));
+ mature_immBlock(get_irg_current_block(irg));
/* end block to add jmps */
endBlock = new_immBlock();
/* Block 1 */
Block1 = new_immBlock();
- add_in_edge(Block1, t);
- mature_block(Block1);
+ add_immBlock_pred(Block1, t);
+ mature_immBlock(Block1);
jmp = new_Jmp();
- add_in_edge(endBlock, jmp);
+ add_immBlock_pred(endBlock, jmp);
/* Block 2 */
Block2 = new_immBlock();
- add_in_edge(Block2, f);
- mature_block(Block2);
+ add_immBlock_pred(Block2, f);
+ mature_immBlock(Block2);
jmp = new_Jmp();
- add_in_edge(endBlock, jmp);
+ add_immBlock_pred(endBlock, jmp);
/* dead Block */
deadBlock = new_immBlock();
- mature_block(deadBlock);
+ mature_immBlock(deadBlock);
jmp = new_Jmp();
- add_in_edge(endBlock, jmp);
+ add_immBlock_pred(endBlock, jmp);
/* finish end block */
- switch_block(endBlock);
+ set_cur_block(endBlock);
{
ir_node *in[1];
in[0] = get_value(0, mode_Is);
get_store();
x = new_Return (get_store(), 1, in);
}
- mature_block (get_irg_current_block(irg));
+ mature_immBlock (get_irg_current_block(irg));
- add_in_edge (get_irg_end_block(irg), x);
- mature_block (get_irg_end_block(irg));
+ add_immBlock_pred (get_irg_end_block(irg), x);
+ mature_immBlock (get_irg_end_block(irg));
- finalize_cons (irg);
+ irg_finalize_cons (irg);
printf("Optimizing ...\n");
local_optimize_graph (irg);
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\n");
+ dump_ir_block_graph (irg, dump_file_suffix);
+ dump_cfg (irg, dump_file_suffix);
+ printf("Use ycomp to view these graphs:\n");
+ printf("ycomp GRAPHNAME\n\n");
return (0);
}
projects / libfirm / blobdiff