X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firprog.c;h=1fbcf35c7962a7f054d8cfc384a49283ab51183d;hb=5baeb7adbb892d71ead14a2fc3d71bae2d45d38e;hp=f7355f248957d66dbcc2f9f6bc8873aa4328c16f;hpb=d61b4fcf547abba70184af32e2d3acc77531c623;p=libfirm

diff --git a/ir/ir/irprog.c b/ir/ir/irprog.c
index f7355f248..1fbcf35c7 100644
--- a/ir/ir/irprog.c
+++ b/ir/ir/irprog.c
@@ -1,124 +1,363 @@
-/* Copyright (C) 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Goetz Lindenmaier
-**
-** irprog.c: ir representation of a program
-*/
+/*
+ * Copyright (C) 1995-2011 University of Karlsruhe.  All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
 
-# include "irprog_t.h"
-# include "array.h"
-# include "obst.h"
+/**
+ * @file
+ * @brief    Entry point to the representation of a whole program.
+ * @author   Goetz Lindenmaier, Michael Beck
+ * @date     2000
+ */
+#include "config.h"
 
-#define GLOBAL_TYPE_NAME "GlobalType"
+#include <string.h>
+
+#include "irprog_t.h"
+#include "irgraph_t.h"
+#include "irpass_t.h"
+#include "array.h"
+#include "error.h"
+#include "obst.h"
+#include "irop_t.h"
+#include "irmemory.h"
+#include "ircons.h"
+
+/** The initial name of the irp program. */
+#define INITAL_PROG_NAME "no_name_set"
 
-/* A variable from where everything in the ir can be accessed. */
 ir_prog *irp;
+ir_prog *get_irp(void) { return irp; }
+void set_irp(ir_prog *new_irp)
+{
+	irp = new_irp;
+}
+
+/**
+ *  Create a new incomplete ir_prog.
+ */
+static ir_prog *new_incomplete_ir_prog(void)
+{
+	ir_prog *res = XMALLOCZ(ir_prog);
 
-/* initializes ir_prog. Calles the constructor for an ir_prog. */
-void init_irprog(void) {
-  new_ir_prog ();
+	res->kind           = k_ir_prog;
+	res->graphs         = NEW_ARR_F(ir_graph *, 0);
+	res->types          = NEW_ARR_F(ir_type *, 0);
+	res->global_asms    = NEW_ARR_F(ident *, 0);
+	res->last_label_nr  = 1;  /* 0 is reserved as non-label */
+	res->max_irg_idx    = 0;
+	res->max_node_nr    = 0;
+#ifndef NDEBUG
+	res->reserved_resources = IRP_RESOURCE_NONE;
+#endif
+
+	return res;
 }
 
-/* Create a new ir prog. Automatically called by init_firm through
-   init_irprog. */
-ir_prog *new_ir_prog (void) {
-  ir_prog *res;
+/**
+ * Completes an incomplete irprog.
+ *
+ * @param irp          the (yet incomplete) irp
+ * @param module_name  the (module) name for this irp
+ */
+static void complete_ir_prog(ir_prog *irp, const char *module_name)
+{
+#define IDENT(x)  new_id_from_chars(x, sizeof(x) - 1)
 
-  res = (ir_prog *) malloc (sizeof(ir_prog));
-  irp = res;
+	irp->name = new_id_from_str(module_name);
+	irp->segment_types[IR_SEGMENT_GLOBAL]
+		= new_type_class(IDENT("GlobalType"));
+	irp->segment_types[IR_SEGMENT_THREAD_LOCAL]
+		= new_type_struct(IDENT("ThreadLocal"));
+	irp->segment_types[IR_SEGMENT_CONSTRUCTORS]
+		= new_type_class(IDENT("Constructors"));
+	irp->segment_types[IR_SEGMENT_DESTRUCTORS]
+		= new_type_class(IDENT("Destructors"));
 
-  /* res->obst      = (struct obstack *) xmalloc (sizeof (struct obstack)); */
-  res->graphs = NEW_ARR_F (ir_graph *, 1);
-  res->types  = NEW_ARR_F (type *, 1);
-  res->glob_type = new_type_class(id_from_str (GLOBAL_TYPE_NAME,
-					       strlen(GLOBAL_TYPE_NAME)));
-  add_irp_type((type *)res->glob_type);
+	/* Set these flags for debugging. */
+	irp->segment_types[IR_SEGMENT_GLOBAL]->flags       |= tf_segment|tf_global_type;
+	irp->segment_types[IR_SEGMENT_THREAD_LOCAL]->flags |= tf_segment|tf_tls_type;
+	irp->segment_types[IR_SEGMENT_CONSTRUCTORS]->flags |= tf_segment|tf_constructors;
+	irp->segment_types[IR_SEGMENT_DESTRUCTORS]->flags  |= tf_segment|tf_destructors;
 
-#ifdef DEBUG_libfirm
-  res->max_node_nr = 1;
-#endif
+	/* The global type is a class, but we cannot derive from it, so set
+	   the final property to assist optimizations that checks for it. */
+	set_class_final(irp->segment_types[IR_SEGMENT_GLOBAL], 1);
+
+	irp->const_code_irg             = new_const_code_irg();
+	irp->class_cast_state           = ir_class_casts_transitive;
+	irp->globals_entity_usage_state = ir_entity_usage_not_computed;
+#undef IDENT
+}
+
+void init_irprog_1(void)
+{
+	irp = new_incomplete_ir_prog();
+}
+
+void init_irprog_2(void)
+{
+	complete_ir_prog(irp, INITAL_PROG_NAME);
+	ir_init_type(irp);
+	ir_init_entity(irp);
+}
+
+ir_prog *new_ir_prog(const char *name)
+{
+	ir_prog *irp = new_incomplete_ir_prog();
+	complete_ir_prog(irp, name);
+	return irp;
+}
+
+void free_ir_prog(void)
+{
+	if (irp == NULL)
+		return;
+
+	size_t i;
+	/* must iterate backwards here */
+	for (i = get_irp_n_irgs(); i > 0;)
+		free_ir_graph(get_irp_irg(--i));
+
+	/* free entities first to avoid entity types being destroyed before
+	 * the entities using them */
+	for (i = get_irp_n_types(); i > 0;)
+		free_type_entities(get_irp_type(--i));
+
+	ir_finish_entity(irp);
+
+	for (i = get_irp_n_types(); i > 0;)
+		free_type(get_irp_type(--i));
+
+	free_ir_graph(irp->const_code_irg);
+
+	ir_finish_type(irp);
+
+	DEL_ARR_F(irp->graphs);
+	DEL_ARR_F(irp->types);
+
+	DEL_ARR_F(irp->global_asms);
+
+	irp->name           = NULL;
+	irp->const_code_irg = NULL;
+	irp->kind           = k_BAD;
+	free(irp);
+	irp = NULL;
+}
+
+ir_graph *get_irp_main_irg(void)
+{
+	assert(irp);
+	return irp->main_irg;
+}
+
+void set_irp_main_irg(ir_graph *main_irg)
+{
+	assert(irp);
+	irp->main_irg = main_irg;
+}
+
+ir_type *(get_segment_type)(ir_segment_t segment)
+{
+	return get_segment_type_(segment);
+}
+
+void set_segment_type(ir_segment_t segment, ir_type *new_type)
+{
+	assert(segment <= IR_SEGMENT_LAST);
+	irp->segment_types[segment] = new_type;
+}
+
+ir_type *(get_glob_type)(void)
+{
+	return get_glob_type_();
+}
+
+ir_type *(get_tls_type)(void)
+{
+	return get_tls_type_();
+}
 
-  return res;
+void add_irp_irg(ir_graph *irg)
+{
+	assert(irg != NULL);
+	assert(irp && irp->graphs);
+	ARR_APP1(ir_graph *, irp->graphs, irg);
 }
 
-/** Functions to access the fields of ir_prog **/
+void remove_irp_irg(ir_graph *irg)
+{
+	size_t i, l;
+
+	assert(irg);
+	l = ARR_LEN(irp->graphs);
+	for (i = 0; i < l; ++i) {
+		if (irp->graphs[i] == irg) {
+			for (; i < l - 1; ++i) {
+				irp->graphs[i] = irp->graphs[i+1];
+			}
+			ARR_SETLEN(ir_graph*, irp->graphs, l - 1);
+			break;
+		}
+	}
+}
 
+size_t (get_irp_n_irgs)(void)
+{
+	return get_irp_n_irgs_();
+}
 
-/* Access the main routine of the compiled program. */
-ir_graph *get_irp_main_irg() {
-  assert (irp);
-  return irp->main_irg;
+ir_graph *(get_irp_irg)(size_t pos)
+{
+	return get_irp_irg_(pos);
 }
 
-void set_irp_main_irg(ir_graph *main_irg) {
-  assert (irp);
-  irp->main_irg = main_irg;
+size_t get_irp_last_idx(void)
+{
+	return irp->max_irg_idx;
 }
 
-type_class *get_glob_type(void) {
-  assert(irp);
-  return irp->glob_type;
+void set_irp_irg(size_t pos, ir_graph *irg)
+{
+	assert(irp && irg);
+	assert(pos < ARR_LEN(irp->graphs));
+	irp->graphs[pos] = irg;
 }
 
-/* Adds irg to the list of ir graphs in irp. */
-void      add_irp_irg(ir_graph *irg) {
-  assert (irg != NULL);
-  assert(irp && irp->graphs);
-  ARR_APP1 (ir_graph *, irp->graphs, irg);
+void add_irp_type(ir_type *typ)
+{
+	assert(typ != NULL);
+	assert(irp);
+	ARR_APP1(ir_type *, irp->types, typ);
 }
 
-int get_irp_n_irgs() {
-  assert (irp && irp->graphs);
-  /* Strangely the first element of the array is NULL.  Why??  */
-  return (ARR_LEN((irp)->graphs) - 1);
+void remove_irp_type(ir_type *typ)
+{
+	size_t i, l;
+	assert(typ);
+
+	l = ARR_LEN(irp->types);
+	for (i = 0; i < l; ++i) {
+		if (irp->types[i] == typ) {
+			for (; i < l - 1; ++i) {
+				irp->types[i] = irp->types[i+1];
+			}
+			ARR_SETLEN(ir_type *, irp->types, l - 1);
+			break;
+		}
+	}
 }
 
-ir_graph *get_irp_irg(int pos){
-  assert (irp && irp->graphs);
-  /* Strangely the first element of the array is NULL.  Why??  */
-  return irp->graphs[pos+1];
+size_t (get_irp_n_types) (void)
+{
+	return get_irp_n_types_();
 }
 
-void set_irp_irg(int pos, ir_graph *irg) {
-  assert (irp && irg);
-  assert (pos < (ARR_LEN((irp)->graphs) - 1));
-  /* Strangely the first element of the array is NULL.  Why??  */
-  irp->graphs[pos+1] = irg;
+ir_type *(get_irp_type) (size_t pos)
+{
+	return get_irp_type_(pos);
 }
 
-/* Adds type to the list of types in irp. */
-void add_irp_type(type *typ) {
-  assert (typ != NULL);
-  assert(irp);
-  ARR_APP1 (type *, irp->types, typ);
+void set_irp_type(size_t pos, ir_type *typ)
+{
+	assert(irp && typ);
+	assert(pos < ARR_LEN((irp)->types));
+	irp->types[pos] = typ;
 }
 
-int get_irp_n_types (void) {
-  assert (irp && irp->types);
-  /* Strangely the first element of the array is NULL.  Why??  */
-  return (ARR_LEN((irp)->types) - 1);
+void set_irp_prog_name(ident *name)
+{
+	irp->name = name;
+}
+int irp_prog_name_is_set(void)
+{
+	return irp->name != new_id_from_str(INITAL_PROG_NAME);
+}
+ident *get_irp_ident(void)
+{
+	return irp->name;
+}
+const char  *get_irp_name(void)
+{
+	return get_id_str(irp->name);
 }
 
-type *get_irp_type(int pos) {
-  assert (irp && irp->types);
-  /* Strangely the first element of the array is NULL.  Why??  */
-  return irp->types[pos+1];
 
+ir_graph *(get_const_code_irg)(void)
+{
+	return get_const_code_irg_();
+}
+
+void set_irp_ip_outedges(ir_node ** ip_outedges)
+{
+	irp->ip_outedges = ip_outedges;
 }
 
-void  set_irp_type(int pos, type *typ) {
-  assert (irp && typ);
-  assert (pos < (ARR_LEN((irp)->types) - 1));
-  /* Strangely the first element of the array is NULL.  Why??  */
-  irp->types[pos+1] = typ;
+ir_node** get_irp_ip_outedges(void)
+{
+	return irp->ip_outedges;
+}
+
+irg_callee_info_state get_irp_callee_info_state(void)
+{
+	return irp->callee_info_state;
+}
+
+void set_irp_callee_info_state(irg_callee_info_state s)
+{
+	irp->callee_info_state = s;
+}
+
+ir_label_t (get_irp_next_label_nr)(void)
+{
+	return get_irp_next_label_nr_();
+}
+
+void add_irp_asm(ident *asm_string)
+{
+	ARR_APP1(ident *, irp->global_asms, asm_string);
+}
+
+size_t get_irp_n_asms(void)
+{
+	return ARR_LEN(irp->global_asms);
+}
+
+ident *get_irp_asm(size_t pos)
+{
+	assert(pos < get_irp_n_asms());
+	return irp->global_asms[pos];
+}
+
+#ifndef NDEBUG
+void irp_reserve_resources(ir_prog *irp, irp_resources_t resources)
+{
+	assert((irp->reserved_resources & resources) == 0);
+	irp->reserved_resources |= resources;
+}
 
+void irp_free_resources(ir_prog *irp, irp_resources_t resources)
+{
+	assert((irp->reserved_resources & resources) == resources);
+	irp->reserved_resources &= ~resources;
 }
 
-#ifdef DEBUG_libfirm
-int get_irp_new_node_nr() {
-  assert(irp);
-  irp->max_node_nr = irp->max_node_nr + 1;
-  return irp->max_node_nr - 1;
+irp_resources_t irp_resources_reserved(const ir_prog *irp)
+{
+	return irp->reserved_resources;
 }
 #endif