X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=testprograms%2Fdead_block_example.c;h=426507e22900d67257e9c467c836d0ecca359385;hb=1ef3d57f913e2f533aba0ab6b22f4d66223b86ed;hp=7493d7c00d109eaeb8b4fc48f876361ce6b12adf;hpb=13588bfa29b57530c70851264dd5ea05184b9486;p=libfirm diff --git a/testprograms/dead_block_example.c b/testprograms/dead_block_example.c index 7493d7c00..426507e22 100644 --- a/testprograms/dead_block_example.c +++ b/testprograms/dead_block_example.c @@ -1,17 +1,21 @@ -/* 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 +#include + -# include -# include -# include "irvrfy.h" -# include "irdump.h" -# include "firm.h" +#include /* * a dead block / unreachable code. @@ -27,44 +31,45 @@ * |/_ _\| * 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" @@ -72,12 +77,12 @@ int main(int argc, char **argv) #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 @@ -89,48 +94,48 @@ int main(int argc, char **argv) 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); @@ -140,10 +145,10 @@ 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 GRAPHNAME\n\n"); return (0); }