X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=testprograms%2Firr_cf_example.c;h=c9c594bfafa85bb045faa294d63a17f3449cc728;hb=1ef3d57f913e2f533aba0ab6b22f4d66223b86ed;hp=6002f65c977e5a99c32241df88dec3eb28440ea3;hpb=c201fe69b5fcb5a8430afafe2e15946cab4e45c4;p=libfirm diff --git a/testprograms/irr_cf_example.c b/testprograms/irr_cf_example.c index 6002f65c9..c9c594bfa 100644 --- a/testprograms/irr_cf_example.c +++ b/testprograms/irr_cf_example.c @@ -1,128 +1,130 @@ -/* 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 +#include -# include "irdump.h" -# include "firm.h" - -/* - * irregular control flow - */ +#include /** -*** 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) +int main(void) { - 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; + char *dump_file_suffix = ""; + ir_graph *irg; /* this variable contains the irgraph */ + ir_type *owner; /* the class in which this method is defined */ + ir_type *proc_main; /* typeinformation for the method main */ + ir_entity *ent; /* represents this method as ir_entity of owner */ + ir_node *expr, *c1, *c2, *cond, *f, *t, *jmp, *x; 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 * 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 "IRREGULAR_CF" #define METHODNAME "main" #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)), - (type *)proc_main); - + ent = new_entity(owner, + new_id_from_chars(METHODNAME, strlen(METHODNAME)), + proc_main); + get_entity_ld_name(ent); #define NUM_OF_LOCAL_VARS 0 - irg = new_ir_graph (ent, NUM_OF_LOCAL_VARS); + 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)); - f = new_Proj(cond, mode_X, 0); - t = new_Proj(cond, mode_X, 1); - mature_block(get_irg_current_block(irg)); + cond = new_Cond(new_Proj(new_Cmp(expr, c1), 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)); - new_Block(); - add_in_edge(get_irg_current_block(irg), t); + new_immBlock(); + add_immBlock_pred(get_irg_current_block(irg), t); jmp = new_Jmp(); - mature_block(get_irg_current_block(irg)); - - new_Block(); - add_in_edge(get_irg_current_block(irg), f); - cond = new_Cond(new_Proj(new_Cmp(expr, c2), mode_b, Eq)); - f = new_Proj(cond, mode_X, 0); - t = new_Proj(cond, mode_X, 1); - mature_block(get_irg_current_block(irg)); - - new_Block(); - add_in_edge(get_irg_current_block(irg), t); - add_in_edge(get_irg_current_block(irg), jmp); + mature_immBlock(get_irg_current_block(irg)); + + 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, pn_Cond_false); + t = new_Proj(cond, mode_X, pn_Cond_true); + mature_immBlock(get_irg_current_block(irg)); + + 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(get_irg_current_block(irg)); + mature_immBlock(get_irg_current_block(irg)); - new_Block(); - add_in_edge(get_irg_current_block(irg), f); + new_immBlock(); + add_immBlock_pred(get_irg_current_block(irg), f); t = new_Jmp(); - mature_block(get_irg_current_block(irg)); + mature_immBlock(get_irg_current_block(irg)); + + new_immBlock(); + add_immBlock_pred(get_irg_current_block(irg), t); + add_immBlock_pred(get_irg_current_block(irg), jmp); + + x = new_Return(get_store(), 0, NULL); + + mature_immBlock(get_irg_current_block(irg)); - new_Block(); - add_in_edge(get_irg_current_block(irg), t); - add_in_edge(get_irg_current_block(irg), jmp); - { - ir_node *in[0]; /* this is the array containing the return parameters */ - x = new_Return (get_store(), 0, in); - } - mature_block (get_irg_current_block(irg)); + add_immBlock_pred(get_irg_end_block(irg), x); + mature_immBlock(get_irg_end_block(irg)); - add_in_edge (get_irg_end_block(irg), x); - mature_block (get_irg_end_block(irg)); + irg_finalize_cons(irg); printf("Optimizing ...\n"); dead_node_elimination(irg); @@ -131,10 +133,11 @@ int main(int argc, char **argv) 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 IRREGULAR_CF_main.vcg\n\n"); + printf("ycomp IRREGULAR_CF_main-cfg.vcg\n\n"); - return (0); + return 0; }